초록 ▼

A plastic battery cover for closing a battery housing includes a top surface, a bottom surface, at least one terminal extending through the battery cover, and a connecting flank extending from the at least one terminal, the connecting flank in contact with the battery cover. The connecting flank is

A plastic battery cover for closing a battery housing includes a top surface, a bottom surface, at least one terminal extending through the battery cover, and a connecting flank extending from the at least one terminal, the connecting flank in contact with the battery cover. The connecting flank is configured such that a region between the at least one terminal and the top surface of the battery cover is adapted to prevent the formation of a gap between the terminal and the adjacent portion of the battery cover after the volume reduction of the plastic in this region during the manufacture of the battery cover by injection molding.

대표청구항 ▼

1. A plastic battery cover for closing a battery housing comprising: a top surface;a bottom surface;at least one terminal extending through the battery cover; andan uppermost connecting flank extending from the at least one terminal, the uppermost connecting flank in contact with the battery cover;w

1. A plastic battery cover for closing a battery housing comprising: a top surface;a bottom surface;at least one terminal extending through the battery cover; andan uppermost connecting flank extending from the at least one terminal, the uppermost connecting flank in contact with the battery cover;wherein the uppermost flank is the flank closest to the top surface of the battery cover;wherein the uppermost connecting flank is configured such that plastic rests on, an upper side of the connecting flank and avoids a gap between the terminal and the top surface of the battery cover;wherein the uppermost connecting flank comprises an outer circumferential surface having a substantially flat surface; andwherein the uppermost connecting flank comprises an at least partially circumferential groove on the uppermost connecting flank's outer circumferential surface; andwherein the uppermost connecting flank is configured such that a region between the at least one terminal and the battery cover adjacent to the top surface of the battery cover is adapted to prevent formation of a gap between the terminal and an adjacent portion of the battery cover adjacent to the top surface of the battery cover after volume reduction of plastic in the region between the at least one terminal and the top surface of the battery cover during manufacture of the battery cover by injection molding. 2. The plastic battery cover of claim 1, wherein the uppermost connecting flank comprises a barb-shaped undercut for accommodating plastic in the undercut and avoiding a gap between the terminal and the top surface of the battery cover. 3. The plastic battery cover of claim 1, wherein the uppermost connecting flank is beveled with respect to the top surface of the battery cover in the region of the terminal which adjoins the top surface of the battery cover such that plastic rests on the beveled upper side of the connecting flank. 4. The plastic battery cover of claim 1, further comprising a circumferential notch provided in the region of the terminal which adjoins the top surface of the battery cover for accommodating plastic and avoiding a gap between the terminal and the top surface of the battery cover. 5. The plastic battery cover of claim 1, wherein the uppermost connecting flank comprises at least two fingers which protrude from the circumference of the at least one terminal that are configured to prevent rotation of the terminal. 6. The plastic battery cover of claim 1, wherein an outer face of the uppermost connecting flank is at least partially roughened and substantially the entire roughened surface is in direct contact with the plastic battery cover material. 7. The plastic battery cover of claim 1, wherein the outer face of the uppermost connecting flank is corrugated, scored, scaled or scarred and substantially the entire roughened surface is in direct contact with the plastic battery cover material. 8. The plastic battery cover of claim 1, further comprising a plastic ring pressed on the circumference of the at least one terminal. 9. The plastic battery cover of claim 8, wherein the plastic forming the cover is injection molded onto the plastic ring. 10. The plastic battery cover of claim 1, further comprising an antirotation protection feature provided between the top surface and the bottom surface of the battery cover comprising at least two fingers which protrude from the circumference of the at least one terminal. 11. The plastic battery cover of claim 1, further comprising a plastic annular bead integrally formed with the battery cover by injection molding, the plastic annular bead provided immediately adjacent to the at least one terminal on the top surface of the battery cover to at least partially enclose the terminal. 12. The plastic battery cover of claim 11, wherein the annular bead comprises slots. 13. The plastic battery cover of claim 1, wherein the at least one terminal is a terminal sleeve for receiving a terminal cylinder. 14. A lead acid battery, comprising: a plastic housing subdivided into cells;a plurality of electrode plates in the cells of the plastic housing;an electrolyte provided in the cells;a plastic battery cover coupled to the housing that comprises an upper surface, a lower surface, at least one terminal extending through the battery cover, and an uppermost connecting flank extending from the at least one terminal, the at least one connecting flank in contact with the battery cover;wherein the uppermost flank is the flank closest to the top surface of the battery cover;wherein the uppermost connecting flank is configured such that plastic rests on an upper side of the connecting flank and avoids a gap between the terminal and the top surface of the battery cover;wherein the uppermost connecting flank comprises an outer circumferential surface having a substantially flat surface; andwherein the uppermost connecting flank comprises an at least partially circumferential groove on the uppermost connecting flank's outer circumferential surface; andwherein the uppermost connecting flank is configured such that a region between the at least one terminal and the battery cover adjacent to the top surface of the battery cover is adapted to prevent formation of a gap between the terminal and an adjacent portion of the battery cover adjacent to the top surface of the battery cover after volume reduction of plastic in the region between the at least one terminal and the top surface of the battery cover during manufacture of the battery cover by injection molding. 15. The lead acid battery of claim 14, wherein the uppermost connecting flank comprises a barb-shaped undercut for accommodating plastic in the undercut and avoiding a gap between the terminal and the top surface of the battery cover. 16. The lead acid battery of claim 14, wherein the uppermost connecting flank is beveled with respect to the top surface of the battery cover in the region of the terminal which adjoins the top surface of the battery cover such that plastic rests on an-the beveled upper side of the connecting flank. 17. The lead acid battery of claim 14, further comprising a circumferential notch provided in the region of the terminal which adjoins the top surface of the battery cover for accommodating plastic and avoiding a gap between the terminal and the top surface of the battery cover. 18. The lead acid battery of claim 14, wherein the uppermost connecting flank comprises at least two fingers which protrude from the circumference of the at least one terminal that are configured to prevent rotation of the terminal. 19. The lead acid battery of claim 14, wherein an outer face of the uppermost connecting flank is at least partially roughened and substantially the entire roughened surface is in direct contact with the plastic battery cover material. 20. The lead acid battery of claim 14, wherein the outer face of the uppermost connecting flank is corrugated, scored, scaled or scarred and substantially the entire roughened surface is in direct contact with the plastic battery cover material. 21. The lead acid battery of claim 14, further comprising a plastic ring pressed on the circumference of the at least one terminal. 22. The lead acid battery of claim 14, further comprising an antirotation protection feature provided between the top surface and the bottom surface of the battery cover comprising at least two fingers which protrude from the circumference of the at least one terminal. 23. The lead acid battery of claim 14, further comprising a plastic annular bead comprising slots that is integrally formed with the battery cover by injection molding, the plastic annular bead provided immediately adjacent to the at least one terminal on the top surface of the battery cover to at least partially enclose the terminal.