CN214505630U

CN214505630U - Energy storage system and electric vehicle

Info

Publication number: CN214505630U
Application number: CN202023202967.8U
Authority: CN
Inventors: 李茂繁; 童永煌; 施家飞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2020-12-27
Filing date: 2020-12-27
Publication date: 2021-10-26
Anticipated expiration: 2030-12-27
Also published as: DE202021107037U1

Abstract

The utility model provides an energy storage system, includes rack and electric core, the rack includes the cabinet body and fixed establishment, fixed establishment includes bears frame, drive module and compresses tightly the subassembly, bear the frame and locate in the cabinet body, electric core can locate with inserting bear in the frame, drive module locates bear on the frame, compress tightly the subassembly connect in on the drive module, drive module can drive compress tightly the subassembly and rotate between primary importance and second place, it is in to compress tightly the subassembly exert fastening force during primary importance, with a plurality of electric core is fixed in bear in the frame. The application also provides an electric vehicle. Energy storage system bears the frame when bearing electric core and bearing, compresses tightly the subassembly through the drive module drive in order to fix electric core, simple structure is convenient for retrieve and maintain electric core, can reduce rack and energy storage system's manufacturing cost simultaneously to can make full use of fixed establishment and cabinet body space, improved the energy storage density of the cabinet body.

Description

Energy storage system and electric vehicle

Technical Field

The application relates to the technical field of energy, in particular to an energy storage system and an electric vehicle.

Background

Along with the rapid development of energy storage technology, the lithium battery market is rapidly increased, and lithium battery products include from small to large: electric core, battery module, battery package and electronic box. When the lithium electricity is used in the current demand industry, especially the electric motor car industry, the electricity core is connected in series-parallel connection earlier usually, makes up into standard PACK module, assembles the standard PACK module to installation spaces such as energy storage rack, frame, electric motor car chassis in, connects power, sampling pencil respectively, forms the system of being equipped with and provides power to the vehicle. At present, the manufacturer assembles PACK through electric core, then cooperates the BMS to assemble into the battery module, need dispose a large amount of protection, fixing device, and assemble into the battery module after, the difficulty of disassembling of single electric core needs whole PACK to change and maintain to cost and production cycle have been influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an energy storage system and an electric vehicle, which are convenient to recover and maintain.

In a first aspect of the embodiment of the present application, an energy storage system is provided, which includes a cabinet and a battery cell, where the cabinet includes a cabinet body and a fixing mechanism, the fixing mechanism includes a bearing frame, a driving module and a pressing assembly, the bearing frame is disposed in the cabinet body, and the battery cell is disposed in the bearing frame in a pluggable manner; the driving module is arranged on the bearing frame, the compressing component is connected to the driving module, and the driving module can drive the compressing component to rotate between a first position and a second position; the pressing assembly applies a fastening force when in the first position to fix the plurality of battery cells in the carrier.

Energy storage system accessible adopts electric core as minimum unit, bears the frame and bears electric core when bearing, compresses tightly the subassembly through drive module drive to bearing and be close to in order to fix electric core, simple structure is convenient for retrieve and maintain electric core, with the direct plug coupling of electric core in the cabinet body simultaneously, degradable manufacturing cost to can make full use of cabinet body space, improved the energy storage density of the cabinet body.

In a possible design of the first aspect, the bearing frame includes a bottom plate, a first side plate and a second side plate, the bottom plate, the first side plate and the second side plate form an accommodating cavity for accommodating the electrical core, the driving module is rotatably disposed on the second side plate, and the compressing assembly can be driven by the driving module to move towards the bottom plate so as to compress the electrical core in the accommodating cavity. Through the holding chamber that bottom plate, first curb plate and second curb plate formed to the cooperation is rotatable to be located drive module on the second curb plate can cooperate and compress tightly the subassembly and inject electric core in the holding chamber.

In a possible design of the first aspect, the driving module includes a link assembly, the compressing assembly includes a pressing plate, the link assembly includes a link seat, a compressing rod, an adjusting rod and a driving rod, the link seat is disposed on the second side plate, the compressing rod and the adjusting rod are respectively rotatably disposed on the link seat, one end of the compressing rod is further connected to the pressing plate, and the driving rod is respectively rotatably connected to the compressing rod and the adjusting rod. Through the connecting rod seat, the compressing rod, the adjusting rod and the actuating lever that rotate each other and connect, the accessible rotates the actuating lever drives compressing rod rotates and removes to drive the clamp plate and compress tightly electric core, compare in screw fixation electric core, reduced the dead time.

In a possible design of the first aspect, the driving module further includes a synchronizing rod, the synchronizing rod includes a connecting portion and at least two synchronizing portions, the connecting portion is connected to the synchronizing portions, and the synchronizing portions are respectively rotatably disposed on one of the driving rods. Through the synchronous rod connected with the driving rod, when one connecting rod assembly rotates, the other connecting rod assemblies are driven to rotate together, the pressing plate connected with the connecting rod assemblies is driven to rotate together, and therefore the electric core is pressed or released in a matched mode.

In one possible embodiment of the first aspect, two sides of the pressure plate are each connected to one of the pressure rods. The pressing plate both sides set up the compressing rod, can make the more stable holding chamber of pressing plate push down to with the steady fixing of electricity core in the holding chamber.

In a possible design of the first aspect, the fixing mechanism further includes a limiting assembly, the limiting assembly includes a limiting member and a limiting block, the limiting member is disposed on the bottom plate, and the limiting block is disposed on the pressing plate. The battery cell insertion position can be limited by the limiting assembly.

In a possible design of the first aspect, the limiting assembly further includes a fixing member and a limiting groove disposed on the first side plate, and the fixing member is disposed on the pressing plate far away from the first side plate. The setting of mounting and spacing groove can carry out spacingly at the direction of inserting of electric core to electric core.

In one possible design of the first aspect, a width of the stopper in a direction away from the bottom plate is gradually reduced. The locating part that the width gradually becomes little is convenient for place and the location of electric core.

In a possible design of the first aspect, the bearing frame includes a bottom plate, a first side plate, a top plate, and a bearing plate, the first side plate is connected to the bottom plate and the top plate, the bearing plate is disposed on a surface of the bottom plate close to the top plate, and the first side plate, the top plate, and the bearing plate form an accommodating cavity for accommodating the battery cell. Through the holding chamber that loading board, roof and first curb plate formed, can cooperate the drive module, inject electric core in the holding chamber.

In a possible design of the first aspect, the pressing assembly includes a pressing plate, the pressing plate is movably disposed on one surface of the top plate close to the bottom plate, the driving module includes a pressing strip, a screw tightening piece, a driving rod and a driving gear, the pressing strip is disposed on the bearing plate and sleeved on the pressing plate, the screw tightening piece is disposed on the pressing strip, the driving rod is rotatably disposed on the bearing frame, and the driving gear is disposed on the driving rod and engaged with the screw tightening piece. The length of the pressing strip is adjusted by rotating the driving rod to drive the screw tensioning piece to enable the pressing plate to be close to the bearing plate to fix the battery cell, and compared with the battery cell fixed by a screw, the fixing time is shortened.

In a possible design of the first aspect, the bearing frame further includes an elastic member, and the pressing plate is movably disposed on the top plate through the elastic member. The elastic piece is arranged to facilitate the pressing plate to compress and release the bearing plate.

In a possible design of the first aspect, the pressing assembly further includes a baffle plate, and the baffle plate detachably covers the accommodating cavity to cooperate with the first side plate to fix the battery core. The baffle and the first side plate can be matched with each other to fix the battery cell in the inserting direction of the battery cell.

In a possible design of the first aspect, the energy storage system further includes a battery management system, and the battery management system is electrically connected to the battery cell. Through setting up battery management system, can conveniently control the management to electric core to improve security performance and work efficiency.

In a second aspect of the embodiments of the present application, an electric vehicle is provided, which includes a power assembly, an energy storage system, and wheels; an energy storage system provides electric energy for the power assembly, and the energy storage system is designed according to the first aspect and any one of the possibilities; the wheels are connected with the power assembly.

Drawings

Fig. 1 is a schematic structural diagram of an energy storage system according to a first embodiment of the present application.

Fig. 2 is a perspective view of a securing mechanism of the energy storage system of fig. 1.

Fig. 3 is a perspective view of another state of the fixing mechanism shown in fig. 2.

Fig. 4 is a partially exploded perspective view of the securing mechanism shown in fig. 2.

Fig. 5 is a schematic perspective view of another angle of the securing mechanism shown in fig. 4.

FIG. 6 is a perspective view of the linkage assembly of the securing mechanism shown in FIG. 4.

FIG. 7 is an exploded perspective view of the connecting rod assembly of FIG. 6.

Fig. 8 is a schematic structural diagram of an energy storage system according to a second embodiment of the present application.

Fig. 9 is a perspective view of a securing mechanism of the energy storage system of fig. 8.

Fig. 10 is a partially exploded perspective view of the securing mechanism shown in fig. 9.

Fig. 11 is an exploded perspective view of the securing mechanism shown in fig. 9.

Description of the main elements

Securing mechanism 100

Load carrier

10, 50

Base plate

11, 51

First side panel

12, 52

Communication holes 121, 521

Second side plate 13

Side wall 131

Connecting wall 132

Mounting wall 133

Accommodating

chamber

14, 55

Drive module

20, 60

Connecting rod assembly 21

Connecting rod seat 211

Compression bar 212

Adjusting lever 213

Drive rod 214

Handle portion 2141

Synchronizing bar 22

Connecting part 221

Synchronizing section 222

Compression assemblies

30, 70

Pressure plate

31, 71

Limit assembly 40

Stopper 41

Limiting

groove

42, 522

Stopper 43

Fixing member 44

Top plate 53

Bearing plate 54

Guide holes 541, 711

Elastic member 56

Baffle 72

Handle hole 721

Mounting hole 722

Compressing strip 61

Screw tensioning piece 62

Driving lever 63

Rotating part 631

Drive gear 64

Cabinet 200

Cabinet 201

Energy storage systems 300, 400

Battery cell 301

Cell body 302

Electrode 303

Handle 304

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Hereinafter, the terms "first", "second", etc., if used, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. "Upper," "lower," "left," "right," and like directional terms are defined relative to the schematically-disposed orientations of elements in the figures, and it is to be understood that the directional terms are relative terms, which are used for descriptive and clarity purposes and are intended to correspond to changes in the orientation in which the elements in the figures are disposed.

In the present application, the term "connected", if used, is to be understood broadly, unless otherwise explicitly stated or limited, for example "connected" may be a fixed connection, a detachable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings, the drawings showing the partial structure of the device are not necessarily to scale, and are merely exemplary, which should not limit the scope of the invention.

Example one

Fig. 1 shows an energy storage system 300 according to a first embodiment of the present application. The energy storage system 300 includes a cabinet 200 and a battery cell 301. A plurality of pluggable battery cells 301 are arranged in the cabinet 200.

The cabinet 200 includes a cabinet body 201 and a fixing mechanism 100. A plurality of fixing mechanisms 100 are installed in the cabinet 201. A plurality of pluggable battery cells 301 are disposed in the fixing mechanism 100. The fixing mechanism 100 is used for restraining and fixing the position of the battery cell 301.

A Battery Management System (BMS) may be further built in the cabinet 201 to manage the usage, temperature, safety performance, and the like of the Battery cell 301 inserted into the cabinet 201. The BMS system can also be arranged in buildings such as a factory building or a house, and is electrically connected with the cabinet body 201, so that the battery cells 301 inserted in the cabinet body 201 are managed.

As shown in fig. 2 and 3, the fixing mechanism 100 includes a carrier 10, a driving module 20, and a pressing assembly 30. The bearing frame 10 is fixedly arranged in the cabinet 201. The carrier 10 is used for carrying the battery cells 301 inserted therein. The driving module 20 is disposed on the carriage 10. The pressing assembly 30 is connected to the driving module 20. The driving module 20 can drive the compressing assembly 30 to move to change between a first position and a second position, and when the compressing assembly 30 is located at the first position, the fastening force of the compressing assembly 30 is large, so that the battery cell 301 inserted into the carrier 10 can be compressed into the carrier 10, and the battery cell 301 is prevented from being separated from the carrier 10.

As shown in fig. 4 and 5, the carrier 10 includes a bottom plate 11, a first side plate 12 and two second side plates 13. The two second side plates 13 extend outwards from two opposite side edges of the bottom plate 11 respectively in a direction perpendicular to the plane of the bottom plate 11. The first side plate 12 connects the bottom plate 11 and the two second side plates 13, respectively. The bottom plate 11, the first side plate 12 and the two second side plates 13 form an accommodating cavity 14 for accommodating the battery cell 301.

The first side plate 12 is provided with a communication hole 121. The communication hole 121 is used for extending an electrode 303 (see below) of the battery cell 301 carried in the accommodation chamber 14.

The driving module 20 includes a plurality of link assemblies 21 and a synchronization rod 22. The plurality of link assemblies 21 are oppositely disposed on the two second side plates 13. The synchronization rod 22 is rotatably disposed on the link assembly 21, and the plurality of link assemblies 21 are connected by one synchronization rod 22. The hold-down assembly 30 is connected between the two link assemblies 21 which are oppositely disposed. The pressing assembly 30 can rotate along with the connecting rod assembly 21 connected with the pressing assembly when rotating, so that the battery core 301 arranged in the accommodating cavity 14 is pressed. The two link assemblies 21 arranged oppositely rotate to drive the synchronous rod 22 connected with the two link assemblies to move, so as to drive the other link assemblies 21 to rotate together, and drive the pressing assembly 30 connected with the other link assemblies to rotate together, so that the battery cell 301 is pressed or released.

As shown in fig. 4, the pressing assembly 30 includes a plurality of pressing plates 31. As shown in fig. 6 and 7, the link assembly 21 includes a link holder 211, a pressing rod 212, an adjusting rod 213, and a driving rod 214. The link base 211 is disposed on the second side plate 13. The pressing rod 212 and the adjusting rod 213 are rotatably disposed on the connecting rod holder 211. One ends of the two opposite pressing rods 212 are also respectively connected with the pressing plate 31. The driving rod 214 is rotatably connected to the pressing rod 212 and the adjusting rod 213, and the driving rod 214 is also rotatably connected to the synchronizing rod 22. The driving rod 214 is rotated to drive the compressing rod 212 to rotate and the synchronization rod 22 to move, so as to drive the pressing plate 31 to compress the battery cell 301, and the synchronization rod 22 drives the other connecting rod assemblies 21 to rotate together.

As shown in fig. 5, the synchronizing bar 22 includes a connecting portion 221 and at least two synchronizing portions 222. The connection unit 221 connects the plurality of synchronization units 222. The synchronizing portions 222 are rotatably disposed on one of the driving rods 214, respectively.

In this embodiment, the fixing mechanism 100 includes two of the synchronizing bars 22. The two synchronization rods 22 are respectively rotatably disposed on the same link assembly 21 on the second side plate 13, and the link assembly 21 disposed on the same second side plate 13 is connected through one synchronization rod 22. It will be appreciated that it is also possible to provide a synchronizing bar 22 for connecting the link assemblies 21, such as a synchronizing bar 22 designed as a U or a synchronizing bar 22 designed as a plate frame, which connects the link assemblies 21 of the two second side plates 13 together.

A handle portion 2141 is further formed extending from the driving rod 214 of the two link assemblies 21 on the side away from the first side plate 12. The handle portion 2141 is used for an operator to rotate the driving rod 214 to drive the compressing rod 212 to rotate and the synchronizing rod 22 to move, so as to drive the pressing plate 31 to compress the battery cell 301 and drive the other connecting rod assemblies 21 to rotate.

As shown in fig. 4 and 5, the fixing mechanism 100 further includes a limiting component 40. The limiting assembly 40 is used for limiting the insertion position of the battery cell 301. The limiting component 40 includes a limiting member 41, a limiting groove 42, a limiting block 43 and a fixing member 44. The limiting member 41 is disposed on the bottom plate 11 and extends along the insertion direction of the battery cell 301. The limiting groove 42 is disposed on the first side plate 12. The communication hole 121 is provided in the bottom wall of the stopper groove 42. The shape of the limiting groove 42 is a profile of the cross-sectional shape of the battery cell 301, so that the end of the battery cell 301 provided with the electrode 303 is limited when the battery cell 301 is inserted, and poor contact caused by looseness of the electrode end of the battery cell 301 is prevented. The limiting block 43 is disposed on the pressing plate 31, and driven by the connecting rod assembly 21, the limiting block 43 can approach the accommodating cavity 14 along with the rotation of the pressing plate 31, and the limiting block 43 is used for being matched with the limiting piece 41 to position the battery cell 301 from two sides of the accommodating cavity 14. The fixing element 44 is disposed on the pressing plate 31 far away from the first side plate 12 and located on a side of the pressing plate 31 far away from the first side plate 12. The fixing member 44 can be driven by the connecting rod assembly 21 to move towards the first side plate 12 along with the rotation of the pressing plate 31, so as to be matched with the first side plate 12 to limit the battery cell 301 along the insertion direction.

The width of the limiting member 41 along the direction away from the bottom plate 11 is gradually reduced, so as to facilitate the placement and limiting of the battery cell 301.

The second side plate 13 includes a side wall 131, a connecting wall 132, and a mounting wall 133. The two side walls 131 are disposed opposite to each other and enclose the accommodating cavity 14 with the bottom plate 11 and the first side plate 12. The mounting wall 133 is used to locate the carrier 10 in the cabinet 201. The connecting wall 132 connects the side wall 131 and the mounting wall 133. The link assembly 21 is provided on the connecting wall 132.

The battery cell 301 includes a battery cell body 302, an electrode 303, and a handle 304. The electrode 303 is disposed on one side of the battery cell body 302, and can extend out from the communication hole 121 to be electrically connected to the cabinet 201 after the battery cell 301 is inserted into the fixing mechanism 100. The handle 304 is disposed on the other side of the cell body 302 away from the electrode 303.

When the battery pack is used, the pressing plate 31 is rotated and opened by rotating the handle portion 2141, then, one end of the battery cell 301 with the electrode 303 is inserted into the accommodating cavity 14, the insertion position of the battery cell 301 is limited by the limiting piece 41 and the limiting groove 42, the electrode 303 extends out through the communicating hole 121, and the plurality of battery cells 301 are sequentially inserted into the accommodating cavity 14 respectively; subsequently, the handle portion 2141 is rotated to drive the pressing plate 31 to rotate to press the battery cell 301 toward the bottom plate 11, and the battery cell 301 is fixed in the accommodating cavity 14 through the cooperation between the limiting block 43 and the fixing block 44 on the pressing plate 31 and the limiting block 41 and the first side plate 12, thereby completing the assembly.

The energy storage system 300 of this application can adopt electric core 301 as minimum unit, and when fixed establishment 100 carried out the plug to electric core 301 fixed, drive clamp plate 31 through link assembly 21 and rotate and fix electric core 301 to cooperation spacing subassembly 40 is injectd electric core 301's position, and simple structure is convenient for retrieve and maintain electric core 301, compares in the fix with screw electric core, has reduced the dead time. And, when electric core 301 is minimum unit, with electric core 301 direct plug coupling in the cabinet body 201, reduced the manufacturing cost of whole product to can make full use of cabinet body 201 space, improved the energy storage density of cabinet body 201.

Example two

Fig. 8 shows an energy storage system 400 according to a second embodiment of the present application.

The energy storage system 400 has the same structure as the energy storage system 300, and includes a cabinet 201, a fixing mechanism 100, and a battery cell 301. The main differences from the energy storage system 300 in the first embodiment shown in fig. 1 are: the securing mechanism 100 is structurally different.

Referring to fig. 9-11, the fixing mechanism 100 includes a carriage 50, a driving module 60, and a pressing assembly 70.

The carrier 50 includes a bottom plate 51, a first side plate 52, a top plate 53 and a loading plate 54. The first side plate 52 connects the bottom plate 51 and the top plate 53, respectively. The bearing plate 54 is disposed on a surface of the bottom plate 51 adjacent to the top plate 53. The bearing plate 54, the top plate 53 and the first side plate 52 form an accommodating cavity 55 for accommodating the battery cell 301. The battery cell 301 is inserted into the accommodating cavity 55.

The pressing assembly 70 includes a pressing plate 71 and a baffle 72. The pressing plate 71 is movably arranged on one surface of the top plate 53 close to the bottom plate 51. The baffle 72 detachably covers the accommodating cavity 55, so as to cooperate with the first side plate 52 to fix the battery cell 301.

The driving module 60 includes a pressing bar 61, a screw tightening member 62, a driving rod 63, and a driving gear 64. The pressing bar 61 is sleeved on the bearing plate 54 and the pressing plate 71 along a direction perpendicular to the insertion direction of the battery cell 301. The screw tensioning piece 62 is arranged on the pressing strip 61. The screw tension member 62 can adjust the length of the pressing bar 61 so as to bring the pressing plate 71 close to the bearing plate 54. The driving rod 63 is rotatably disposed on the cabinet 201 or the carrier 50. The drive gear 64 is provided on the drive rod 63 and engages with the screw tensioning member 62. The driving rod 63 is rotated to drive the driving gear 64 to rotate, so that the screw tensioning piece 62 is adjusted to move, the pressing strip 61 is tightened, the pressing plate 71 moves towards the bearing plate 54, and the battery cell 301 accommodated in the accommodating cavity 55 is pressed.

In this embodiment, the driving module 60 includes four pressing bars 61, a screw tightening member 62 and a driving gear 64. The four pressing strips 61 are sequentially sleeved on the bearing plate 54 and the pressing plate 71 along the insertion direction of the battery cell 301. The driving gears 64 are respectively arranged on the driving rods 63 so as to synchronously adjust the compression when the driving rods 63 rotate.

A rotating portion 631 is disposed on a side of the driving rod 63 away from the first side plate 52. The rotating portion 631 is used for an operator to rotate the driving rod 63 to rotate the driving gears 64.

The bearing plate 54 and the pressing plate 71 are further provided with a guide hole 541 and a guide hole 711. The compressing bar 61 is inserted into the guide holes 541 and 711 to prevent the compressing bar 61 from moving left and right.

The first side plate 52 is provided with a communication hole 521. The communication hole 521 is used for extending the electrode 303 of the battery cell 301 carried in the accommodating cavity 55. The first side plate 52 is further provided with a limiting groove 522 for limiting the insertion position of the battery cell 301.

The baffle 72 is provided with a handle hole 721. The handle hole 721 is used for extending the handle 304 of the battery cell 301.

The carriage 50 also includes a resilient member 56. The pressing plate 71 is movably arranged on the top plate 53 through an elastic piece 56.

The baffle 72 is provided with a mounting hole 722. The mounting holes 722 are used for cooperating with fasteners such as screws to fix the baffle 72 to the cabinet 201.

When the battery pack is used, the rotating part 631 is rotated to enable the pressing plate 71 to move towards the direction far away from the bearing plate 54, then, one end of the battery cell 301 with the electrode 303 is inserted into the accommodating cavity 55, the insertion position of the battery cell 301 is limited through the limiting groove 522, the electrode 303 extends out through the communicating hole 521, and the plurality of battery cells 301 are sequentially inserted into the accommodating cavity 55 respectively; then, the rotating portion 631 is rotated to drive the driving rod 63 to rotate, so that the pressing strip 61 is tightened, the pressing plate 71 is driven to move towards the bearing plate 54, the electric core 301 is pressed, then the baffle plate 72 is covered on the accommodating cavity 55, the mounting hole 722 is penetrated through by fixing members such as screws, the baffle plate 72 is fixed, the electric core 301 is fixed in the accommodating cavity 55, and the assembly is completed.

The energy storage system 400 of this application can adopt electric core 301 as minimum unit, when fixed establishment 100 carries out the plug to electric core 301 fixed, compresses tightly strip 61 through setting up to cooperate the taut 62 of screw rod, make the rotation of actuating lever 63 drive the taut 62 of screw rod and remove, will compress tightly the strip and tighten up, make clamp plate 71 and loading board 54 cooperation fixed with electric core 301, has reduced the dead time, maintains simply, and the cost is lower.

The embodiment of the present application further provides an electric vehicle, and the electric vehicle adopts the energy storage system 400 to provide electric energy.

The electric Vehicle can be a common electric Vehicle/Electric Vehicle (EV), a pure electric Vehicle (PEV/BEV), a Hybrid Electric Vehicle (HEV), an extended range electric Vehicle (REEV), a plug-in hybrid electric Vehicle (PHEV), a New Energy Vehicle (New Energy Vehicle), an electric bus, an electric motorcycle and the like.

The electric vehicle includes an energy storage system 400, wheels, and a power assembly. The energy storage system 400 provides electrical energy to the powertrain. The power assembly is connected with the wheels to drive the wheels to rotate.

It should be understood that the electric vehicle provided by the embodiment further includes common electric vehicle components such as a vehicle body and a vehicle door, which are not described in detail herein.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the disclosure of the present application.

Claims

1. The utility model provides an energy storage system, its characterized in that, includes rack and electric core, the rack includes the cabinet body and fixed establishment, fixed establishment includes bears frame, drive module and compresses tightly the subassembly, bear the frame and locate in the cabinet body, electric core can locate pluggably bear in the frame, drive module locates bear on the frame, compress tightly the subassembly and connect in on the drive module, drive module can drive compress tightly the subassembly and rotate between primary importance and second place, compress tightly the subassembly and exert fastening force when primary importance, with a plurality of electric core is fixed in bear in the frame.

2. The energy storage system of claim 1, wherein the carrier includes a bottom plate, a first side plate, and a second side plate, the bottom plate, the first side plate, and the second side plate form a receiving cavity for receiving the battery cell, the driving module is rotatably disposed on the second side plate, and the pressing assembly is capable of moving toward the bottom plate under the driving of the driving module to press the battery cell into the receiving cavity.

3. The energy storage system of claim 2, wherein the driving module comprises a connecting rod assembly, the pressing assembly comprises a pressing plate, the connecting rod assembly comprises a connecting rod seat, a pressing rod, an adjusting rod and a driving rod, the connecting rod seat is disposed on the second side plate, the pressing rod and the adjusting rod are respectively rotatably disposed on the connecting rod seat, one end of the pressing rod is further connected with the pressing plate, and the driving rod is respectively rotatably connected with the pressing rod and the adjusting rod.

4. The energy storage system of claim 3, wherein the driving module further comprises a synchronization rod, the synchronization rod comprises a connecting portion and at least two synchronization portions, the connecting portion is connected with the synchronization portions, and the synchronization portions are respectively rotatably disposed on one of the driving rods.

5. The energy storage system of claim 3, wherein one of said compression bars is attached to each side of said compression plate.

6. The energy storage system of claim 3, wherein the fixing mechanism further comprises a limiting assembly, the limiting assembly comprises a limiting member and a limiting block, the limiting member is disposed on the bottom plate, and the limiting block is disposed on the pressure plate.

7. The energy storage system of claim 6, wherein the limiting assembly further comprises a fixing member and a limiting groove formed in the first side plate, and the fixing member is disposed on the pressing plate away from the first side plate.

8. The energy storage system of claim 1, wherein the carrier comprises a bottom plate, a first side plate, a top plate, and a carrier plate, the first side plate connects the bottom plate and the top plate, the carrier plate is disposed on a side of the bottom plate close to the top plate, and the first side plate, the top plate, and the carrier plate form a receiving cavity for receiving the battery cell.

9. The energy storage system of claim 8, wherein the pressing assembly comprises a pressing plate movably disposed on a surface of the top plate adjacent to the bottom plate, the driving module comprises a pressing bar, a screw tightening member, a driving rod and a driving gear, the pressing bar is disposed on the bearing plate and sleeved on the pressing plate, the screw tightening member is disposed on the pressing bar, the driving rod is rotatably disposed on the bearing frame, and the driving gear is disposed on the driving rod and engaged with the screw tightening member.

10. The energy storage system of claim 9, wherein the carrier further comprises a resilient member, and the pressure plate is movably disposed on the top plate via the resilient member.

11. The energy storage system of claim 9, wherein the compression assembly further comprises a baffle plate, and the baffle plate detachably covers the accommodating cavity to cooperate with the first side plate to fix the battery cell.

12. The energy storage system of claim 1, further comprising a battery management system electrically connected to the cells.

13. An electric vehicle, comprising:

a power assembly;

an energy storage system for providing electrical energy to the power assembly, the energy storage system being as claimed in any one of claims 1 to 12;

and the wheels are connected with the power assembly.