Electric vehicle and quick swapping assembly

1 . An electric vehicle, wherein, the electric vehicle comprises vehicle beams and a battery unit, and the battery unit comprises a plurality of battery packs arranged side by side along a width direction of the vehicle beams;

a locking unit is arranged on the vehicle beams, and a connecting unit is arranged between two adjacent battery packs corresponding to the vehicle beams, and the connecting unit is matched with the locking unit to lock and connect the battery unit to the vehicle beams;

the locking unit comprises a locking containing cavity for the connecting unit entering in order to lock and fix the battery unit, and the locking containing cavity is located under the vehicle beams.

2 . The electric vehicle according to claim 1 , wherein, the locking unit comprises a locking base, and the locking containing cavity is arranged in the locking base, and the locking base is connected to the vehicle beams;

the locking unit comprises a mounting base, and the locking base is connected to a bottom of the vehicle beams by means of the mounting base; or, the locking base is connected to the vehicle beams by means of a quick-swapping bracket, and the quick-swapping bracket is connected to a side surface of the vehicle beams.

3 . The electric vehicle according to claim 2 , wherein, the connecting unit comprises a locking shaft and a shaft base, and the locking shaft is mounted between the two adjacent battery packs by means of the shaft base.

4 . The electric vehicle according to claim 3 , wherein, the shaft base comprises two opposite arranged side plates, and both ends of the locking shaft are respectively connected to the side plates, and the locking shaft is hooked onto the locking unit;

or, a plurality of locking shafts and a plurality of locking bases are all arranged along a length direction of the vehicle beams.

5 . The electric vehicle according to claim 4 , wherein, the locking base comprises a locking groove, and the locking groove penetrates through along a thickness direction of the locking base, and the locking containing cavity is positioned in the locking groove, and the locking groove is used to hook the locking shaft.

6 . The electric vehicle according to claim 5 , wherein, the locking base comprises an open groove, and the open groove is communicated with the locking groove, and the open groove is a penetrate groove, and the open groove is used for the locking shaft entering into the locking groove and being locked in the locking containing cavity;

or, a distance between the two side plates is greater than the thickness of the locking base;

the battery unit further comprises a top plate arranged between the two side plates, and the top plate is provided with a first through hole for the locking base passing through, so that the locking shaft reaches an inside of the locking containing cavity of the locking base;

the first through hole extends along the length direction of the vehicle beams, and a length of the first through hole is greater than a sum of the locking base's length and a horizontal moving distance of the locking shaft in the locking groove; and/or, when the locking shaft is located in the lock containing cavity, a distance between the center of the locking shaft and a bottom surface of the first through hole is smaller than a distance between a center of the locking shaft and a bottom of the vehicle beams.

7 . The electric vehicle according to claim 6 , wherein, the locking unit further comprises a locking tongue, and the locking tongue is rotatably connected to the locking base, in order to open or close the open groove.

8 . The electric vehicle according to claim 7 , wherein, the locking unit comprises at least two locking bases, and each of the locking bases is rotatably connected to the locking tongue, and the locking unit further comprises a lock connecting rod, and the lock connecting rod is rotatably connected to a plurality of locking tongues;

or, the locking unit comprises at least two locking bases, and each of the locking bases is rotatably connected to the locking tongue, and the locking unit further comprises a lock connecting rod, and the lock connecting rod is rotatably connected to a plurality of locking tongues,

the locking unit comprises a reset piece, and one end of the reset piece is connected to the lock connecting rod, and an other end of the reset piece is connected to a quick-swapping bracket or the vehicle beams.

9 . The electric vehicle according to claim 8 , wherein, the locking tongue is provided with an unlocking part extending to an outside of the locking bases.

10 . The electric vehicle according to claim 9 , wherein, the battery unit further comprises an unlocking rod, and the unlocking rod is arranged opposite to the unlocking part or the lock connecting rod, and is used to push the unlocking part or the lock connecting rod to rotate so that the locking tongue opens or closes the open groove;

or, the battery unit further comprises an unlocking rod, and the unlocking rod is arranged opposite to the unlocking part or the lock connecting rod, and is used to push the unlocking part or the lock connecting rod to rotate so that the locking tongue opens or closes the open groove; the quick-swapping bracket for connecting the locking base comprises a bottom surface, and the bottom surface is provided with a second through hole for the unlocking rod to pass through, in order to act on the lock connecting rod or the unlocking part;

or, the battery unit further comprises an unlocking rod, and the unlocking rod is arranged opposite to the unlocking part or the lock connecting rod, and is used to push the unlocking part or the lock connecting rod to rotate so that the locking tongue opens or closes the open groove; the quick-swapping bracket for connecting the locking base comprises a bottom surface, and the bottom surface is provided with a second through hole for the unlocking rod to pass through, in order to act on the lock connecting rod or the unlocking part; a length of the second through hole is greater than the horizontal moving distance of the locking shaft in the locking groove.

11 . The electric vehicle according to claim 2 wherein, the battery unit comprises a first electrical connector and a battery cavity for containing the battery packs, and the connecting unit is arranged between the two adjacent battery cavities, and a through hole is arranged between two adjacent battery cavities; and the first electrical connector is arranged on an outer side surface of any one of the battery cavities;

or, the battery unit comprises a first electrical connector and a battery cavity for containing the battery packs, and the connecting unit is arranged between the two adjacent battery cavities, and a through hole is arranged between two adjacent battery cavities; and the first electrical connector is arranged on an outer side surface of any one of the battery cavities; the battery unit further comprises a housing and a cover, and a plurality of separators are arranged at intervals in the housing, and the battery cavity is formed between the separators; and the cover is arranged at a cavity opening of each battery cavity.

12 . The electric vehicle according to claim 11 , wherein, the vehicle further comprises a second electrical connector, and the second electrical connector is arranged along the width direction of the vehicle beams, and the second electrical connector is used to be connected to the first electrical connector, so that the battery unit supplies power for the vehicle;

or, the vehicle further comprises a second electrical connector, and the second electrical connector is arranged along the width direction of the vehicle beams, and the second electrical connector is used to be connected to the first electrical connector, so that the battery unit supplies power for the vehicle; the quick-swapping bracket for connecting the locking unit comprises a longitudinal bracket and a transverse bracket, and the longitudinal bracket is connected to the vehicle beams, and the transverse bracket is connected between longitudinal brackets, and the transverse bracket is provided with the second electrical connector;

or, the vehicle further comprises a second electrical connector, and the second electrical connector is arranged along the width direction of the vehicle beams, and the second electrical connector is used to be connected to the first electrical connector, so that the battery unit supplies power for the vehicle; the quick-swapping bracket for connecting the locking unit comprises a longitudinal bracket and a transverse bracket, and the longitudinal bracket is connected to the vehicle beams, and the transverse bracket is connected between longitudinal brackets, and the transverse bracket is provided with the second electrical connector; the transverse bracket is located under the vehicle beams, and the longitudinal bracket is connected to a side surface of the vehicle beams; and/or, the transverse bracket covers at least a partial area of an end of the battery unit.

13 . The electric vehicle according to claim 1 , wherein, the connecting unit is connected to the vehicle beams by means of a connecting bracket, and the connecting bracket is provided with a connecting groove penetrating through along the width direction of the vehicle beams, to contain, lock and fix the connecting unit.

14 . The electric vehicle according to claim 1 , wherein, an upper surface of the connecting unit is not higher than the upper surface of the battery packs.

15 . The electric vehicle according to claim 1 , wherein, the locking unit comprises a second locking containing cavity for the connecting unit entering so as to lock and fix the battery unit, and the second locking containing cavity is located on one side of a side surface of the vehicle beams;

the locking unit comprises a second locking base, and the second locking containing cavity is arranged in the second locking base, and the second locking base is connected to the vehicle beams;

or, the locking unit comprises a second locking containing cavity for the connecting unit entering so as to lock and fix the battery unit, and the second locking containing cavity is located on one side of a side surface of the vehicle beams; the locking unit comprises a second locking base, and the second locking containing cavity is arranged in the second locking base, and the second locking base is connected to the vehicle beams; the locking unit comprises a second mounting base, and the second locking base is connected to the side surface of the vehicle beams by means of the second mounting base; or, the second locking base is connected to the vehicle beams by means of a second quick-swapping bracket, and the second quick-swapping bracket is connected to the side surface of the vehicle beams.

16 . The electric vehicle according to claim 15 , wherein, the connecting unit comprises a second locking shaft and a second shaft base, and one end of the second locking shaft is connected to a side surface of the second shaft base and extends from the side surface of the second shaft base along a direction toward the vehicle beams; and the vehicle beams are provided with a second locking base, comprising a second locking groove, and the second locking groove is used for containing the second locking shaft;

or, the connecting unit comprises a second locking shaft and a second shaft base, and one end of the second locking shaft is connected to a side surface of the second shaft base and extends from the side surface of the second shaft base along a direction toward the vehicle beams; and the vehicle beams are provided with a second locking base, comprising a second locking groove, and the second locking groove is used for containing the second locking shaft; a plurality of second locking shafts and a plurality of second locking bases are all arranged along the length direction of the vehicle beams.

17 . The electric vehicle according to claim 1 , wherein, the connecting unit comprises at least one of a thread connecting piece and a T-shaped hooking piece, and the thread connecting piece is used for connecting the battery unit to the vehicle beams in a thread way, and the T-shaped hooking piece is used for rotationally clamping the battery unit to the vehicle beams.

18 . The electric vehicle according to claim 1 , wherein, the battery unit comprises a side battery pack, and the battery pack is arranged outside the vehicle beams;

or, the battery unit comprises a side battery pack, and the battery pack is arranged outside the vehicle beams; the battery unit further comprises a central battery pack, and the central battery pack is arranged between two side battery packs and located under the vehicle beams; and/or, the side battery pack is provided with an avoidance opening for avoiding a transmission shaft of the electric vehicle.

19 . A quick-swapping assembly, wherein, the quick-swapping assembly is applied to the electric vehicle according to claim 1 ;

the quick-swapping assembly comprises the locking unit and the battery unit, and the locking unit is used for connecting to the vehicle beams, and the battery unit comprises the plurality of battery packs, and the connecting unit is arranged between the two adjacent battery packs corresponding to the vehicle beams, and the connecting unit is matched with the locking unit.