Battery pack loaded and unloaded relatove to electric vehicle tool and electric vehicle tool with the same

Abstract

The invention provides a battery pack loaded and unloaded relatove to electric vehicle tool and an electric vehicle tool with the same. The battery pack is mounted in an interlocking cove (51) of the electric vehicle tool (50) and a connector (3) is connected with a connection terminal (52) to supply the power. The connector is fixed on a shell (2) with a plurality of batteries (11) capable of charging. The connector is fixed on the shell in the posture of mounting an insertion part (33) below and connected with the connection terminal (52) fixed on the electric vehicle tool using the gravity of the battery pack. A guide projection part (21) with the connector inside is arranged on the shell towards the surface. The lower surface of the guide projection part is more near to the bottom of the shell and a connector window (22) for making the insertion part of the connector exposing towards the outer part of the shell is opened on the lower surface of the guide projection part. The battery pack inserts the guide projection part into the interlocking cove to connect the connector with the connection terminal.

Description

technical field [0001] The present invention mainly relates to a battery pack detachably mounted on electric vehicles such as electric bicycles and power-assisted bicycles to supply electric power to a motor driving the electric vehicle, and an electric vehicle including the battery pack. Background technique [0002] In order to increase the output, that is, to increase the discharge power supplied to the electric vehicle, the battery pack that supplies electric power to the motor that drives the electric vehicle such as an electric bicycle has a built-in large-capacity battery or a plurality of batteries to increase the output power. Large output voltage and output current. The battery pack is configured to be detachably mounted on an electric vehicle by providing a connector on the case, and is configured to electrically connect the connector to connection terminals of the electric vehicle while mounted on the electric vehicle. Since the discharge current of the connecto...

AI Technical Summary

Problems solved by technology

[0005] but, figure 1 The battery pack shown has the following disadvantages. Since the connector 93 is provided at the lower end of the case 92, foreign matter or water intruded into the fitting recess for detachably attaching the battery pack stays at the bottom and becomes Causes of poor contact between connectors and connection terminals

In particular, there is a disadvantage that it is difficult to remove foreign objects and the like lodged in the bottom of the fitting recess of the electric vehicle, and it takes time to eliminate contact failure.

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