Battery module
AssigneeRobert Bosch GmbH
InventorsJerome Homann, Markus Schmitt
Life of this patent
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Abstract
The invention relates to a battery module comprising a housing element (2) made of a metal material (3) and a cover element (4) made of a metal material (5), which elements are connected to one another by means of a plurality of screw connections (8), so as to form a common interior (6) designed to receive a plurality of battery cells (7), in such a way that an electrical contact is formed between the housing element (2) and the cover element (4), wherein a sealing element (9) is also arranged between the housing element (2) and the cover element (4) in such a way that the interior (6) is sealed off in a fluid-tight manner from an environment (10), wherein the plurality of screw connections (8) is arranged outside of the sealing element (9).
Claims14
A battery module comprising
- a housing element (2) made of a metal material (3) having a first uppermost sealing surface (12), the first uppermost sealing surface (12) being planar and extending around a periphery of the housing element (2), and
- a cover element (4) made of a metal material (5) having a second sealing surface (13), the second sealing surface (13) being planar,
- wherein the housing and cover elements are connected to one another by a plurality of screw connections (8), so as to form a common interior (6) configured for receiving a plurality of battery cells (7), in such a way that an electrical contact is formed between the housing element (2) and the cover element (4),
- wherein a sealing element (9) is sandwiched between the first uppermost sealing surface (12) of the housing element (2) and the second sealing surface (13) of the cover element (4) in such a way that the interior (6) is sealed off in a fluid-tight manner from an environment (10),
- wherein the sealing element (9) covers an entirety of the first uppermost sealing surface (12),
- wherein the plurality of screw connections (8) is arranged outside the sealing element (9),
- wherein the screw connections (8) each comprise a screw receptacle (15), in each of which a screw (16) is received,
- wherein the housing element (2) forms the respective screw receptacles (15),
- wherein a bearing surface (18) of each screw receptacle (15) is directly connected to a contact surface (20) of the cover element (4) when the electrical contact is formed, and
- wherein the bearing surface (18) of each screw receptacle (15) is raised relative to the first uppermost sealing surface (12) of the housing element (2).
A battery module comprising
- a housing element (2) made of aluminum (30) having a first uppermost sealing surface (12), the first uppermost sealing surface (12) being planar and extending around a periphery of the housing element (2), and
- a cover element (4) made of aluminum (50) having a second sealing surface (13), the second sealing surface (13) being planar,
- wherein the housing and cover elements are connected to one another by a plurality of screw connections (8), so as to form a common interior (6) configured for receiving a plurality of battery cells (7), in such a way that an electrical contact is formed between the housing element (2) and the cover element (4),
- wherein a sealing element (9) is sandwiched between the first uppermost sealing surface (12) of the housing element (2) and the second sealing surface (13) of the cover element (4) in such a way that the interior (6) is sealed off in a fluid-tight manner from an environment (10),
- wherein the sealing element (9) covers an entirety of the first uppermost sealing surface (12),
- wherein the plurality of screw connections (8) is arranged outside the sealing element (9),
- wherein the screw connections (8) each comprise a screw receptacle (15), in each of which a screw (16) is received,
- wherein the housing element (2) forms the respective screw receptacles (15),
- wherein a bearing surface (18) of each screw receptacle (15) is directly connected to a contact surface (20) of the cover element (4) when the electrical contact is formed, and
- wherein the bearing surface (18) of each screw receptacle (15) is raised relative to the first uppermost sealing surface (12) of the housing element (2).
Dependencies are inferred from the claim text.