CN214280131U - Battery pack and vehicle - Google Patents

Abstract

The present disclosure relates to a battery pack and a vehicle, the battery pack includes a plurality of electric core groups and a battery pack case, each electric core group is composed of a plurality of electric cores and a plurality of connecting pieces, and every two adjacent electric cores are connected by one connecting piece; the battery shell comprises two side plates which are oppositely arranged in the left-right direction at intervals, a lower plate fixedly connected below the two side plates and a plurality of partition plates; the plurality of partition plates are arranged on the inner surface of the lower plate at intervals so as to partition a plurality of containing chambers with open upper ends, and each containing chamber is used for inserting one electric core group. The battery pack is simple in structure, light in weight and convenient to assemble.

Description

Battery pack and vehicle

Technical Field

The present disclosure relates to the field of vehicle technology, and in particular, to a battery pack and a vehicle.

Background

The electric automobile has become the mainstream trend in the future, the key of the design of the electric automobile is that the three-electricity technology comprises a battery, a motor and an electric control, wherein the power battery is used as a power supply component which is the most core of the whole automobile and determines the key indexes of the driving range, the cost, the service life, the safety and the like of the whole automobile.

The battery package among the prior art adopts the integrated arrangement mode that sets up a plurality of electric core modules in the battery cladding internal mostly to every electric core module all has solitary electric core casing, still can make the structure of battery package become complicated when increasing battery package weight, and electric core module among the prior art is assembling to the internal in-process of battery cladding in addition, and the operation is complicated, the assembly of being not convenient for.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a battery pack and a vehicle, the battery pack being simple in structure, light in weight, and easy to assemble.

In order to achieve the above object, the present disclosure provides a battery pack, which includes a plurality of battery core groups and a battery pack housing, each battery core group is composed of a plurality of battery cells and a plurality of connecting members, and every two adjacent battery cells are connected through one connecting member; the battery shell comprises two side plates which are oppositely arranged in the left-right direction at intervals, a lower plate fixedly connected below the two side plates and a plurality of partition plates; the plurality of partition plates are arranged on the inner surface of the lower plate at intervals so as to partition a plurality of containing chambers with open upper ends, and each containing chamber is used for inserting one electric core group.

Optionally, the battery pack case further comprises a front end cover plate, a rear end cover plate and an upper plate which is opposite to and parallel to the lower plate at a certain interval, the upper plate is detachably connected above the two side plates to block the upper ends of the plurality of accommodating chambers, and the two side plates are parallel to each other; the upper plate, the lower plate and the two side plates form a containing cavity with the front end and the rear end open, the front end cover plate is plugged at the front end of the containing cavity, the rear end cover plate is plugged at the rear end of the containing cavity, the plurality of the partition plates are arranged on the inner surface of the lower plate at intervals in the left-right direction, and each partition plate extends in the front-back direction and is parallel to the side plates.

Optionally, the first part comprises one side plate and a first connecting plate which are opposite and parallel to each other at intervals in the left-right direction, the second part comprises two second connecting plates which are opposite and parallel to each other at intervals in the left-right direction, and the third part comprises the other side plate and a third connecting plate which are opposite and parallel to each other at intervals in the left-right direction; the first connecting plate is connected to one of the second connecting plates and both are configured as one of the partition plates; the other of the second connecting plates is connected to the third connecting plate and both are configured as one of the partition plates.

Optionally, the first portion further comprises a first lower sub-panel connected below the side panel and the first connection panel in the first portion; the second part also comprises a second lower sub-plate connected below the two second connecting plates; the third part also comprises a third lower sub-plate connected below the side plate and the third connecting plate in the third part; the first lower sub-panel, the second lower sub-panel, and the third lower sub-panel are configured as the lower panel.

Optionally, the first portion, the second portion, and the third portion are all formed by extrusion and are welded to each other.

Optionally, a heat conducting glue is disposed on the inner bottom wall of each accommodating chamber for adhering the electric core sets.

Optionally, be provided with the exhaust chamber that extends along left right direction in the rear end apron, the medial surface of rear end apron is provided with and is a plurality of along left right direction interval a plurality of first gas vents that the accommodation chamber is one-to-one, and a plurality of first gas vent with exhaust chamber intercommunication, the lateral surface of rear end apron is provided with at least one second gas vent, and every the second gas vent is used for with an explosion-proof valve intercommunication.

Optionally, the lower plate includes a first region and a second region located in front of the first region, a projection of the upper plate in the vertical direction coincides with the first region, and projections of the plurality of partition plates and the plurality of electric core groups in the vertical direction are located in the first region; the side plate comprises a third area and a fourth area, wherein the length of the third area is equal to that of the first area in the front-back direction, and the length of the fourth area is equal to that of the second area in the front-back direction; the front end cover plate extends along the left-right direction and is connected to the front end surfaces of the two side plates, and the front end cover plate, the second area and the two fourth areas of the two side plates jointly enclose an accommodating groove with an open upper end; the battery package still includes electric plug-in components and battery block terminal, electric plug-in components set up in the lateral surface of front end cover plate, battery block terminal set up in the medial surface of front end cover plate is located in the holding tank, just battery block terminal with electric plug-in components electricity is connected.

Optionally, the upper plate includes a fifth area and a sixth area located in front of the fifth area, a projection of the fifth area in the vertical direction coincides with the first area, and a projection of the sixth area in the vertical direction coincides with the second area to close the upper end of the accommodating groove.

The utility model provides a vehicle still provides in addition, the vehicle include whole car floor and battery package, every the lateral surface of curb plate is provided with a plurality of installation lugs, every along the fore-and-aft direction interval all be provided with the mounting hole on the installation lug, a plurality of fasteners wear to establish a plurality ofly respectively one-to-one the mounting hole in order to incite somebody to action the battery package install in whole car floor.

In the technical scheme, the inner surface of the lower plate is provided with the plurality of partition plates which are arranged at intervals, so that a plurality of containing chambers with open upper ends are separated, each containing chamber is used for allowing one electric core group to be inserted, the assembly of the plurality of electric core groups is realized, and the plurality of electric core groups are protected; and each battery core group does not need to be provided with a battery core shell, so that the structure of the battery pack is simplified, the weight of the whole battery pack can be reduced, and the light design of the battery pack is facilitated. In addition, the upper end of every holding chamber is open form, when assembling electric core group, only need from last down insert to should hold indoor can, improve the convenience of operation, improve the maneuverability of electric core group assembly.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a case body of a battery pack according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a rear end cover plate of a battery pack according to an embodiment of the present disclosure.

Description of the reference numerals

1 Battery pack case 11 separator

110 front cover of chamber 12

13 rear cover plate 131 exhaust chamber

132 first exhaust port 14 housing body

141 upper plate 1411 fifth area

1412 sixth region 142 lower plate

1421 second area 143 side panel

1431 third area 1432 fourth area

144 first part 1441 first connecting plate

1443 second part of the first lower sub-board 145

1451 a second connecting plate 1453 a second lower sub-plate

146 third portion 1461 third web

1463 third lower sub-plate

2 electric plug-in 21 high-voltage plug-in

22 low voltage plug-in 3 battery distribution box

5 detection unit 6 mounting lug

7 fastener 10 electric core group

101 electric core 102 connecting piece

20 explosion-proof valve 30 holding tank

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of the directional words such as "upper and lower" means, without being otherwise stated, that the battery pack is up and down as defined in the normal use state; the terms of orientation such as "front, rear, left, right" used refer to front, rear, left, right as defined in normal use of the vehicle; in particular, reference may be made to fig. 1; the use of directional words such as "inner and outer" refers to the inner and outer as defined under normal conditions of use of the vehicle; the use of terms such as "first," "second," etc. are used merely to distinguish one element from another, and are not necessarily sequential or significant.

As shown in fig. 1 to 3, the present disclosure provides a battery pack, which includes a plurality of electric core groups 10 and a battery pack case 1, each electric core group 10 is composed of a plurality of electric cores 101 and a plurality of connectors 102, and every two adjacent electric cores 101 are connected by one connector 102; the battery pack case 1 includes two side plates 143 disposed opposite to each other at an interval in the left-right direction, a lower plate 142 fixedly connected below the two side plates 143, and a plurality of partition plates 11; a plurality of partition plates 11 are spaced apart from each other on the inner surface of the lower plate 142 to partition a plurality of receiving chambers 110 having open upper ends, and each receiving chamber 110 is used for receiving one electric core pack 10.

It should be noted that, the above-mentioned battery core pack 10 and the conventional battery core module are not equivalent, and the battery core pack 10 is composed of a plurality of battery cores 101 and a plurality of connecting members 102, and specifically, one connecting member 102 is disposed between every two adjacent battery cores 101. That is, the battery pack 10 does not have a cell casing. Alternatively, the connecting member 102 may be configured as a nickel plate, and every two adjacent battery cells 101 may be connected by welding the nickel plate.

In the above technical solution, a plurality of partition plates 11 are arranged at intervals on the inner surface of the lower plate 142 to divide a plurality of accommodating chambers 110 with open upper ends, and each accommodating chamber 110 is used for inserting one electric core assembly 10, so that the assembly of the plurality of electric core assemblies 10 is realized, and the plurality of electric core assemblies 10 are protected; and each electric core group 10 does not need to be provided with an electric core shell, so that the structure of the battery pack is simplified, the weight of the whole battery pack can be reduced, and the light design of the battery pack is facilitated. In addition, the upper end of every accommodation chamber 110 is open form, when assembling electric core group 10, only need from last down insert to this accommodation chamber 110 in can, improve the convenience of operation, improve the maneuverability of electric core group 10 assembly.

Alternatively, a plurality of partition plates 11 are provided at intervals in the left-right direction on the inner surface of the lower plate 142 and each partition plate 11 extends in the front-rear direction to partition a plurality of accommodating chambers 110 with open upper ends in the left-right direction, each accommodating chamber 110 being used for inserting one electric core pack 10; alternatively, a plurality of partition plates 11 are provided at intervals in the front-rear direction on the inner surface of the lower plate 142 and each partition plate 11 extends in the left-right direction to divide a plurality of receiving chambers 110 having open upper ends in the left-right direction, each receiving chamber 110 being used for insertion of one electric core pack 10.

In one embodiment, referring to fig. 1 and 2, the battery pack case 1 further includes a front end cover plate 12, a rear end cover plate 13, and an upper plate 141 spaced opposite and parallel to the lower plate 142, the upper plate 141 being detachably coupled above two side plates 143 to block upper ends of the plurality of receiving chambers 110, the two side plates 143 being parallel to each other; the upper plate 141, the lower plate 142 and the two side plates 143 enclose a containing cavity with open front and back ends, the front end cover plate 12 is arranged at the front end of the containing cavity in a sealing mode, the rear end cover plate 13 is arranged at the rear end of the containing cavity in a sealing mode, the plurality of partition plates 11 are arranged on the inner surface of the lower plate 142 at intervals in the left-right direction, and each partition plate 11 extends in the front-back direction and is parallel to the side plates 143.

In this embodiment, the upper plate 141 is detachably connected to the upper side of the two side plates 143, so that when the assembly 10 needs to be disassembled and maintained, an operator can disassemble the upper plate 141 and then take out the assembly 10 from the accommodating chamber 110. Of course, the present disclosure is not limited to the manner in which the upper plate 141 is connected to the two side plates 143, and the upper plate 141 may be connected to the two side plates 143 by bonding or welding in another embodiment. The front end cover plate 12 and the rear end cover plate 13 can improve the sealing performance of the whole battery pack shell 1 in the front and rear directions, and the normal operation of the internal electric core group 10 is prevented from being influenced by the external environment.

Referring to fig. 2, the lower plate 142, the two side plates 143, and the plurality of partition plates 11 are configured as a case body 14, and the case body 14 includes a first portion 144, a second portion 145, and a third portion 146 connected to each other in the left-right direction.

The first portion 144 includes one side plate 143 and a first connecting plate 1441 which are spaced opposite and parallel in the left-right direction, the second portion 145 includes two second connecting plates 1451 which are spaced opposite and parallel in the left-right direction, and the third portion 146 includes the other side plate 143 and a third connecting plate 1461 which are spaced opposite and parallel in the left-right direction; the first connecting plate 1441 is connected to one of the second connecting plates 1451 and both are configured as one partition plate 11; the other second connecting plate 1451 is connected to the third connecting plate 1461 and both are configured as one partition plate 11.

In this embodiment, by providing the housing body 14 as three parts, i.e., the first part 144, the second part 145, and the third part 146, when a part of the parts is damaged and needs to be disassembled for maintenance, the parts can be disassembled separately for maintenance, thereby improving the convenience of operation. For example, the sections may be releasably connected together by snap-fit or bolted connections or the like. However, the present disclosure is not limited to the number of the second portions 145 in the housing body 14, and in other embodiments, the second portions 145 may be provided in plurality.

In addition, by connecting the first connecting plate 1441 to one of the second connecting plates 1451 and both of them are configured as one partition plate 11, and connecting the other second connecting plate 1451 to the third connecting plate 1461 and both of them are configured as one partition plate 11, the first connecting plate 1441, the second connecting plate 1451 and the third connecting plate 1461 can also be configured as a partition plate 11 while realizing the connection of the first part 144, the second part 145 and the third part 146, and adjacent two connecting plates can also function as partitions for the accommodation cavities.

Referring to fig. 1 and 2, the first portion 144 further includes a first lower sub-board 1443 connected below the side plate 143 and the first connection plate 1441 in the first portion 144; the second portion 145 further includes a second lower sub-plate 1453 connected below the two second connection plates 1451; the third portion 146 further includes a third lower sub-plate 1463 connected below the side plate 143 and the third connecting plate 1461 in the third portion 146; the first lower sub-plate 1443, the second lower sub-plate 1453, and the third lower sub-plate 1463 are configured as the lower plate 142. In this embodiment, by dividing the lower plate 142 into three parts, i.e., the first lower sub-plate 1443, the second lower sub-plate 1453, and the third lower sub-plate 1463, when one of the parts is damaged and needs to be replaced, only the damaged part needs to be replaced, and the lower plate 142 does not need to be replaced as a whole.

In other embodiments, in order to improve the overall structural strength of the housing body 14, the first portion 144, the second portion 145 and the third portion 146 are all formed by extrusion and are welded to each other, but of course, if not limited by the forming dimension of the housing body 14, the housing body 14 may be formed by extrusion.

Optionally, a heat conducting glue (not shown) is disposed on the inner bottom wall of each accommodating chamber 110 for adhering the electric core assembly 10, so as to improve the stability of the electric core assembly 10 disposed in the accommodating chamber 110 and avoid the electric core assembly 10 from shaking to affect the normal operation thereof.

Alternatively, referring to fig. 3, an exhaust cavity 131 extending in the left-right direction is formed in the rear end cover plate 13, a plurality of first exhaust ports 132 are formed in the inner side surface of the rear end cover plate 13 at intervals in the left-right direction, the first exhaust ports 132 are in one-to-one correspondence with the plurality of accommodating chambers 110, the first exhaust ports 132 are communicated with the exhaust cavity 131, and at least one second exhaust port is formed in the outer side surface of the rear end cover plate 13, and each second exhaust port is used for being communicated with one explosion-proof valve 20.

In this embodiment, for example, when thermal runaway occurs in the electric core assembly 10 located in one of the accommodating chambers 110, the hot air may flow backwards along the accommodating chamber 110 extending in the front-rear direction, and be discharged into the air discharge cavity 131 through the first air discharge opening 132 corresponding thereto, and then flow towards the explosion-proof valve 20 communicating with the second air discharge opening, and be discharged to the atmosphere through the explosion-proof valve 20, so that the thermal runaway location is effectively discharged in time, thereby avoiding disordered spreading of the hot air and slowing down spreading of the thermal runaway.

Referring to fig. 1, the lower plate 142 includes a first region and a second region 1421 located in front of the first region, a projection of the upper plate 141 in the vertical direction coincides with the first region, and projections of the plurality of partition plates 11 and the plurality of electric core groups 10 in the vertical direction are located in the first region; the side panel 143 includes a third region 1431 equal to the length of the first region in the front-rear direction, and a fourth region 1432 equal to the length of the second region 1421 in the front-rear direction; the front end cover plate 12 extends in the left-right direction and is connected to the front end surfaces of the two side plates 143, and the front end cover plate 12, the second region 1421 and the two fourth regions 1432 of the two side plates 143 jointly enclose an accommodating groove 30 with an open upper end; the battery pack further comprises an electric plug-in 2 and a battery distribution box 3, the electric plug-in 2 is arranged on the outer side face of the front end cover plate 12, the battery distribution box 3 is arranged on the inner side face of the front end cover plate 12 and located in the accommodating groove 30, and the battery distribution box 3 is electrically connected with the electric plug-in 2.

By providing this accommodation groove 30 within the battery pack case 1, the installation of the battery distribution box 3 is facilitated. In addition, the battery distribution box 3 is arranged on the inner side surface of the front end cover plate 12, and the electric plug-in unit 2 is arranged on the outer side surface of the front end cover plate 12, so that the connection compactness between the battery distribution box 3 and the front end cover plate 12 is improved, and the size of the battery pack in the front-back direction is reduced; and the battery distribution box 3 is electrically connected with the electric plug-in 2, so that arrangement of a copper bar and a wiring harness is not needed, the structure is simplified, and meanwhile, the cost can be reduced. Optionally, the electrical insert 2 may comprise a high voltage insert 21 and a low voltage insert 22.

Specifically, referring to fig. 1, the upper plate 141 includes a fifth area 1411 and a sixth area 1412 located in front of the fifth area 1411, a projection of the fifth area 1411 in the up-down direction coincides with the first area, and a projection of the sixth area 1412 in the up-down direction coincides with the second area 1421 to close the upper end of the accommodating groove 30. That is, for the open upper end of the accommodating groove 30, a cover plate structure is not required to be separately provided, and the upper plate 141 can be used for realizing sealing, thereby reducing the design of parts.

Referring to fig. 1, the battery pack further includes a sensing unit 5 for sensing the operation of the plurality of electric core packs 10, and the sensing unit 5 is connected to the rear of the battery distribution box 3. Further, the space of the housing tank 30 is fully utilized, and the utilization rate of the space is improved.

In addition, in order to avoid damage to the battery distribution box 3 in the accommodating groove 30 caused by the electric core assembly 10 in thermal runaway, a thermal insulation plate (not shown) may be further provided, and the thermal insulation plate may be disposed at a junction of the first region and the second region 1421 and parallel to the front end cover plate 12, so that heat is effectively isolated, heat entering into the accommodating groove 30 is reduced, and safety of the battery pack is improved.

In addition, the battery core group 10 may be composed of two rows of battery cell units, each row of battery cell units includes four battery cells 101 and connecting pieces 102 sequentially connecting the four battery cells 101; in addition, in the arrangement mode, the thickness directions of the four battery cells 101 extend along the left-right direction, and the two end plates of each two adjacent battery cells 101 are oppositely arranged in the front-back direction, so that the battery pack is light and thin in the up-down direction.

The present disclosure still provides a vehicle in addition, this vehicle include whole car floor (not shown in the figure) and the battery package, the lateral surface of every curb plate 143 be provided with a plurality of installation lugs 6 along the fore-and-aft direction interval, all be provided with the mounting hole on every installation lug 6, a plurality of fasteners 7 wear to establish a plurality of mounting holes in order to install the battery package in whole car floor respectively one-to-one, and then improve the installation stability of this battery package. However, the present disclosure is not limited to the manner in which the battery pack is mounted on the floor of the entire vehicle, and may be mounted by a snap-fit method or the like.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A battery pack is characterized by comprising a plurality of battery core groups (10) and a battery pack shell (1), wherein each battery core group (10) is composed of a plurality of battery cells (101) and a plurality of connecting pieces (102), and every two adjacent battery cells (101) are connected through one connecting piece (102); the battery pack shell (1) comprises two side plates (143) which are oppositely arranged at intervals in the left-right direction, a lower plate (142) fixedly connected below the two side plates (143), and a plurality of partition plates (11);

the plurality of separation plates (11) are arranged on the inner surface of the lower plate (142) at intervals so as to separate a plurality of containing chambers (110) with open upper ends, and each containing chamber (110) is used for inserting one electric core group (10).

2. The battery pack according to claim 1, wherein the battery pack case (1) further comprises a front end cover plate (12), a rear end cover plate (13), and an upper plate (141) spaced opposite and parallel to the lower plate (142), the upper plate (141) being detachably attached above the two side plates (143) to close the upper ends of the plurality of receiving chambers (110), the two side plates (143) being parallel to each other;

the upper plate (141), the lower plate (142) and the two side plates (143) enclose a containing cavity with front and rear ends open, the front end cover plate (12) is plugged at the front end of the containing cavity, the rear end cover plate (13) is plugged at the rear end of the containing cavity, the plurality of partition plates (11) are arranged on the inner surface of the lower plate (142) at intervals in the left-right direction, and each partition plate (11) extends in the front-rear direction and is parallel to the side plates (143).

3. The battery pack according to claim 2, wherein the lower plate (142), the two side plates (143), and the plurality of partition plates (11) are configured as a case body (14), and the case body (14) includes a first portion (144), a second portion (145), and a third portion (146) that are connected to each other in the left-right direction;

the first part (144) comprises one side plate (143) and a first connecting plate (1441) which are opposite and parallel in the left-right direction, the second part (145) comprises two second connecting plates (1451) which are opposite and parallel in the left-right direction, and the third part (146) comprises the other side plate (143) and a third connecting plate (1461) which are opposite and parallel in the left-right direction;

the first connecting plate (1441) is connected to one of the second connecting plates (1451) and both are configured as one of the partition plates (11); the other of the second connecting plates (1451) is connected to the third connecting plate (1461) and both are configured as one of the partition plates (11).

4. A battery pack according to claim 3, wherein the first part (144) further comprises a first lower sub-plate (1443) connected below the side plate (143) and the first connecting plate (1441) in the first part (144); the second portion (145) further comprises a second lower sub-plate (1453) connected below the two second connection plates (1451); the third portion (146) further comprises a third lower sub-plate (1463) connected below the side plate (143) and the third connecting plate (1461) in the third portion (146);

the first lower sub-board (1443), the second lower sub-board (1453), and the third lower sub-board (1463) are configured as the lower board (142).

5. The battery pack of claim 3, wherein the first portion (144), the second portion (145), and the third portion (146) are each extruded and welded to each other.

6. The battery pack according to any one of claims 1 to 5, wherein each of the receiving chambers (110) has a heat conductive paste provided on an inner bottom wall thereof for adhering the electric core pack (10).

7. The battery pack according to claim 2, wherein an exhaust cavity (131) extending in the left-right direction is formed in the rear end cover plate (13), a plurality of first exhaust ports (132) which are one-to-one opposite to the plurality of accommodating chambers (110) are formed in the inner side surface of the rear end cover plate (13) at intervals in the left-right direction, the plurality of first exhaust ports (132) are communicated with the exhaust cavity (131), at least one second exhaust port is formed in the outer side surface of the rear end cover plate (13), and each second exhaust port is used for being communicated with one explosion-proof valve (20).

8. The battery pack according to claim 2, wherein the lower plate (142) includes a first region and a second region (1421) located in front of the first region, a projection of the upper plate (141) in the up-down direction coincides with the first region, and a projection of the plurality of partition plates (11) and the plurality of cell groups (10) in the up-down direction are located in the first region;

the side panel (143) includes a third region (1431) equal in length to the first region in the front-rear direction, and a fourth region (1432) equal in length to the second region (1421) in the front-rear direction;

the front end cover plate (12) extends along the left-right direction and is connected to the front end surfaces of the two side plates (143), and the front end cover plate (12), the second area (1421) and the two fourth areas (1432) of the two side plates (143) jointly enclose an accommodating groove (30) with an open upper end;

the battery pack further comprises an electric plug-in (2) and a battery distribution box (3), the electric plug-in (2) is arranged on the outer side face of the front end cover plate (12), the battery distribution box (3) is arranged on the inner side face of the front end cover plate (12) and located in the accommodating groove (30), and the battery distribution box (3) is electrically connected with the electric plug-in (2).

9. The battery pack according to claim 8, wherein the upper plate (141) includes a fifth area (1411) and a sixth area (1412) located in front of the fifth area (1411), a projection of the fifth area (1411) in the up-down direction coincides with the first area, and a projection of the sixth area (1412) in the up-down direction coincides with the second area (1421) to close the upper end of the receiving groove (30).

10. A vehicle, characterized in that, the vehicle includes whole car floor and battery package of any one of claims 1-9, every the lateral surface of curb plate (143) is provided with a plurality of installation lugs (6) along the fore-and-aft direction interval, every all be provided with the mounting hole on installation lug (6), a plurality of fasteners (7) are respectively worn to establish a plurality ofly one-to-one the mounting hole with the battery package install in whole car floor.

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