Cell Lids/Covers TRIZ Cases

Inclined hole walls in a battery top patch ease offcut removal, cut machining time, and prevent warpage and weak joint breakage.

Sliding overlapping cover bodies and a central retainer preserve cell insulation distance during thermal expansion and prevent cover detachment.

Distributed drainage holes in an insulating cover help remove condensation water from an inclined battery module while keeping cells properly positioned.

A ridged double-floor sheet metal layout boosts EV battery box stiffness while limiting weight, volume, and exposure to moisture and dirt.

An orthogonal arc interruption portion guides and extinguishes fuse arcs in a battery module, shortening excessive current conduction.

Direct terminal extension replaces the connecting piece, cutting battery assembly cost while improving space use, contact area, and insulation safety.

Overlapping copper buses fit upper-cover space to replace bulky flexible cables, cutting battery assembly time and internal space use.

Press-fit protrusions and dual contacting grooves replace laser welding in an EV battery module case, cutting defects, cost, and module bulk.

Surface irregularities in a battery pack cover spread vibration stress, raise rigidity, and avoid separate brackets for simpler assembly.

Distributed fixing through cover, intermediate, and end plates reduces stress concentration from cell swelling without added reinforcements.

Inclined lead-out connection surfaces and a compressible adapter sheet reduce extrusion stress, save space, and extend battery cell life.

Independent connecting seats and rods shift handle loads off the battery top cover to reduce cracking and help maintain water-tightness.

A protruding support member between cell assemblies preserves rigidity, cuts dead space, and enables denser battery pack layouts.

Controlled bead forming creates a minimum wall thickness in the battery cover, enabling repeatable overpressure release at a defined burst pressure.

A separator injection hole and block mechanism enable cavity filling, then close to isolate adjacent battery sets and prevent electrolyte decomposition.

A protrusion-in-opening welded current collector joint saves terminal space in prismatic secondary batteries while maintaining strong electrical connection.

Using spot-welded aluminum sheets and closed sections, this case cuts battery pack weight while improving accuracy and limiting weld deformation.

A stepped-hole riveting block forms and welds a terminal protrusion to prevent weak battery cover joints, cold joints, and peeling.

A protruding support member links cell assemblies to the pack housing, cutting dead space while improving battery pack rigidity and heat dissipation.

Independent end access doors expose marine battery terminals without removing the full cover, preserving strap security and a watertight seal.

A blocking member keeps binder out of the drain hole so liquid can drain into a reservoir cavity and avoid battery module short-circuits.

A high-melting insulating layer shields battery cell connectors to prevent fusion, metal-particle shorts, and runaway propagation.

Interlocking frames, spacers, and insulating coupling blocks secure multiple cells while preserving rigidity and electrical isolation during swelling.

Insulating adhesive on battery tab weld zones prevents electrode assembly damage, simplifies assembly, and reduces short-circuit risk.

Oblique hinge openings and side-frame poles increase battery pack frame coupling force, helping prevent separation and improve durability.

Protective covers and a projecting connecting sleeve enable safer high-voltage screw assembly while maintaining reliable current transfer.

A support member extending beyond end covers couples modules to the pack housing, reducing dead space while maintaining rigidity.

A protruding support member couples each module to the pack housing, cutting dead space while preserving rigidity and energy density.

An elastic lid decouples the battery case from its support to cut vibration transfer, stabilize cells, and limit shock damage.

Integrated locking, sealing, and mounting surfaces shrink battery pack box height, cut weight, and preserve module capacity for longer EV range.

A protrusion and holding portion lock the inverted plate under pressure, preventing vibration-driven re-inversion and short-circuit issues.

Interconnected insulation covers wrap the busbar with plug-fit joints to prevent scratches, falling layers, and exposed gaps in battery modules.

Detachable insulated housings and coated conductor elements keep battery terminal links low-resistance, stable under vibration, and easy to service.