Electric vehicle

Patent metadata

Field	Value
Publication number	US-9783076-B2
Application number	US-201515512477-A
Country	US
Kind code	B2
Filing date	Sep 8, 2015
Priority date	Sep 18, 2014
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

An electric vehicle ( 10 ) includes a power battery module ( 20 ) detachably installed at a predetermined installation position of the electric vehicle ( 10 ); the power battery module ( 20 ) includes a housing ( 21 ), a plurality of battery cells installed in the housing ( 21 ), rolling wheels ( 22 ) and a handle ( 23 ) installed on the housing, and an electric power output port. A lifting device capable of releasably holding the power battery module ( 20 ) and lifting the power battery module ( 20 ) from a ground proximity position on or near the ground to the predetermined installation position is installed at the electric vehicle. As the electric vehicle ( 10 ) is provided with the lifting device, installation and removal of the power battery thereof can be accomplished without using other installation equipment. Furthermore, the detachable power battery module ( 20 ) can be moved by a user without excessive effort.

First claim

The invention claimed is:

1. An electric vehicle, comprising:
a power battery module detachably installed at a predetermined installation position of the electric vehicle, comprising:
a housing;
a plurality of battery cells arranged in the housing and connected with one another in a predetermined serial and/or parallel mode so as to output electric driving power required for the electric vehicle;
rolling wheels and a handle, installed at the housing and arranged to facilitate a user dragging the power battery module on the ground in a state that the power battery module has been detached from the electric vehicle; and
one or more electric power output ports, wherein at least one electric power output port is used for connection with an electric power input port of the electric vehicle to provide the electric driving power to the electric vehicle; and

a lifting device installed at and carried by the electric vehicle, and configured to releasably hold the power battery module and lift the power battery module from a ground proximity position on or near the ground to the predetermined installation position, wherein the height of the ground proximity position is low enough for the user to push the power battery module to the ground proximity position via the rolling wheels without lifting the power battery module by manpower,
wherein the lifting device comprises a holder for receiving and holding the power battery module;
wherein the electric power input port of the electric vehicle comprises a receiving-end electric contact element formed at the holder; the electric power output port of the power battery module comprises an output-end electric contact element formed at the housing; and when the power battery module is moved into the ground proximity position, the power battery module is received and held by the holder, and the receiving-end electric contact element comes into electric contact with the output-end electric contact element.

2. The electric vehicle of claim 1 , wherein the lifting device is configured to be driven by an electric driving source.

3. The electric vehicle of claim 2 , wherein the power battery module further comprises a flexible cable, wherein the length of the flexible cable is configured to be sufficient to electrically connect one of the electric power output ports of the power battery module to the electric power input port of the vehicle when the power battery module is at the ground proximity position.

4. The electric vehicle of claim 2 , wherein the lifting device is further configured to be driven by manpower.

5. The electric vehicle of claim 4 , wherein the lifting device comprises a switching element capable of being manipulated manually to move between an electric driving position and a manpower driving position;
wherein when the switching element is at the electric driving position, the lifting device is connected with the electric driving source; and when the switching element is at the manpower driving position, the lifting device is disconnected with the electric driving source to allow the lifting device to be driven by manpower.

6. The electric vehicle of claim 1 , wherein the predetermined installation position is in a lower part or outside of the tail of the electric vehicle.

7. The electric vehicle of claim 1 , wherein the power battery module further comprises a charge and discharge control circuit used for controlling the charge and/or discharge of the power battery module.

8. The electric vehicle of claim 7 , wherein the power battery module further comprises an adjusting circuit used for adjusting the voltage and/or current output from the electric power output port.

9. The electric vehicle of claim 8 , wherein the power battery module further comprises a manual adjusting element arranged at the housing;
wherein the adjusting circuit carries out the adjustment according to the user's operation of the manual adjusting element.

10. The electric vehicle of claim 7 , wherein the electric power output port of the power battery module comprises a plurality of sub-ports, and the plurality of sub-ports output voltages and/or currents different from one another; and/or, the plurality of sub-ports have interface types different from one another.

11. The electric vehicle of claim 1 , wherein the electric quantity of the power battery module is not lower than 6 KW·h, and/or, the weight of the power battery module is not higher than 50 Kg.

12. The electric vehicle of claim 11 , wherein a driving motor and driven wheels driven by the driving motor to rotate are arranged at the power battery module, and a manipulation element for controlling the operation of the driving motor is arranged at the handle.

13. The electric vehicle of claim 12 , wherein a foot pedal for the user to stand on is arranged at the power battery module, so that the user can stand on the power battery module and drive the power battery module.

14. The electric vehicle of claim 12 , wherein the driven wheels are the rolling wheels.

Assignees

• Geely Holding Group Co Ltd
• Zhejiang Geely Automobile Res Inst Co Ltd

Inventors

• Li Shufu

Classifications

• B60K2001/0494

  with arrangements for sliding · CPC title

• B60K2001/0472

  from below · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• B66F3/02

  with racks actuated by pinions · CPC title

• B60L53/80

  Exchanging energy storage elements, e.g. removable batteries · CPC title