Battery connection device

A battery connection device, comprising:

• a base end connector including a base end terminal module, and the base end terminal module being exposed to an upper surface of the base end connector, the base end connector having a ring-shaped holding groove, the holding groove being recessed inward in the upper surface of the base end connector, the holding groove surrounding the base end terminal module;
• a battery end connector docked with the base end connector, the battery end connector including a base plate, and a battery end terminal module mounted on the base plate, the battery end terminal module being exposed to a bottom surface of the base plate, the base end terminal module being docked with the battery end terminal module, the bottom surface of the base plate protruding downward to form a rib, the rib being corresponding to the holding groove;
• and
• a waterproof rubber ring mounted between the base end connector and the battery end connector, the waterproof rubber ring having a rubber ring body and a waterproof sealing ring, the waterproof sealing ring being integrally formed with the rubber ring body, the rubber ring body being fastened in the holding groove, the rib abutting against the rubber ring body, the waterproof sealing ring protruding beyond the upper surface of the base end connector, an inner side surface of the waterproof sealing ring that faces towards the base end terminal module being an inclined surface, the inclined surface and an upper surface of the rubber ring body forming an obtuse angle, a top end of the waterproof sealing ring being a rounded corner.

A battery connection device, comprising:

• a base end connector including a cover, and a base end terminal module mounted to the cover, a middle of the cover having a receiving space penetrating through the cover along an up-down direction, the base end terminal module being received in the receiving space, a top of the base end terminal module being exposed to an upper surface of the middle of the cover from the receiving space, the upper surface of the middle of the cover being recessed inward to form a holding groove, the holding groove surrounding the receiving space and the base end terminal module;
• a battery end connector docked with the base end connector, the battery end connector including a base plate, and a battery end terminal module mounted on the base plate, the battery end terminal module being exposed to a bottom surface of the base plate, the base end terminal module being docked with the battery end terminal module, the bottom surface of the base plate protruding downward to form a rib, the rib being corresponding to the holding groove;
• and
• a waterproof rubber ring mounted between the base end connector and the battery end connector, the waterproof rubber ring having a rubber ring body and a waterproof sealing ring, the waterproof sealing ring being protruded outward from an outer periphery of the rubber ring body, the waterproof sealing ring being integrally formed with the rubber ring body, a middle of the waterproof rubber ring having an opening penetrating through the waterproof rubber ring along the up-down direction, the rubber ring body being fastened in the holding groove, the rib abutting against the rubber ring body, the waterproof sealing ring protruding beyond an upper surface of the base end connector, an inner side surface of the waterproof sealing ring that faces towards the base end terminal module being an inclined surface, the inclined surface and an upper surface of the rubber ring body forming an obtuse angle, a top end of the waterproof sealing ring being a rounded corner;
• wherein the base end terminal module contacts with the battery end terminal module through the opening.