CN108039438A - Electric commercial vehicle battery pack and battery pack system - Google Patents
Electric commercial vehicle battery pack and battery pack system Download PDFInfo
- Publication number
- CN108039438A CN108039438A CN201810016995.9A CN201810016995A CN108039438A CN 108039438 A CN108039438 A CN 108039438A CN 201810016995 A CN201810016995 A CN 201810016995A CN 108039438 A CN108039438 A CN 108039438A
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- Prior art keywords
- liquid cooling
- battery
- commercial vehicle
- battery pack
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present embodiments relate to new energy field of batteries, in particular to a kind of electric commercial vehicle battery pack and battery pack system.A kind of electric commercial vehicle battery pack includes：Battery case, first layer battery modules, second layer battery modules, connection component, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad, cell managing device, battery cutout device and multiple fixing pieces.It is cavity inside Battery case, first layer battery modules, second layer battery modules, connection component, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad, cell managing device and battery cutout device are arranged at cavity, one end of each fixing piece sequentially passes through second layer battery modules, connection component and first layer battery modules, and is fixedly connected with the bottom of Battery case.The cruising ability of the electric commercial vehicle battery pack is strong, and security performance is high.
Description
Technical field
The present embodiments relate to new energy field of batteries, in particular to a kind of electric commercial vehicle battery pack and electricity
Pond packet system.
Background technology
Power battery pack is the core component of pure electric vehicle commercial car, its performance is directly related to holding for pure electric vehicle commercial car
Continuous, safe and reliable operation.
The duration performance and security performance of existing most power battery pack are poor, can not meet holding for pure electric vehicle commercial car
Continuous, safe and reliable operation.
The content of the invention
In view of this, it is existing to improve the present invention provides a kind of pure electric vehicle commercial vehicle battery bag and battery pack system
Power battery pack existing for duration performance and the problem of poor safety performance.
To achieve the above object, an embodiment of the present invention provides a kind of electric commercial vehicle battery pack, including：Battery case,
First layer battery modules, second layer battery modules, connection component, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad, battery
Managing device, battery cutout device and multiple fixing pieces.It is cavity inside the Battery case, the cushion pad is arranged at described
In cavity, and the cushion pad is arranged at away from the battery positioned at the bottom of the Battery case, first liquid cooling apparatus
The bottom side of babinet, the first layer battery modules are arranged at first liquid cooling apparatus away from the cushion pad side, institute
State connection component and be arranged at the first layer battery modules and set away from the first liquid cooling apparatus side, second liquid cooling apparatus
It is placed in the connection component and is arranged at second liquid away from the first layer battery modules side, the second layer battery modules
Device for cooling is arranged in the cavity away from the connection component side, the cell managing device, and is located at the battery case
First madial wall of body, the cell managing device electrically connect with the first layer battery modules and the second layer battery modules
Connecing, the battery cutout device is arranged in the cavity, and in the second madial wall of the Battery case, described second
Side wall is opposite with first madial wall, the battery cutout device and the first layer battery modules and the second layer battery
Module is electrically connected, and one end of each fixing piece sequentially passes through the second layer battery modules, the connection component and described
First layer battery modules, and be fixedly connected with the bottom of the Battery case.
Alternatively, the electric commercial vehicle battery pack further includes liquid cooling pipe road device.Liquid cooling pipe road device is arranged at
Inside the Battery case, and it is located at the first madial wall of the Battery case close to the position of the cell managing device, institute
Liquid cooling pipe road device is stated to connect with first liquid cooling apparatus and second liquid cooling apparatus.
Alternatively, first liquid cooling apparatus and second liquid cooling apparatus are platy structure, first liquid cooling apparatus
Be cavity inside second liquid cooling apparatus, first liquid cooling apparatus is provided with the close to one end of first madial wall
One inlet and the first liquid outlet, the inside of first inlet, first liquid outlet and first liquid cooling apparatus are empty
Chamber interconnects.Second liquid cooling apparatus is provided with the second inlet and second close to one end of first madial wall and goes out liquid
Mouthful, the internal cavities of second inlet, second liquid outlet and second liquid cooling apparatus interconnect, the pipeline
Device, first inlet, first liquid outlet, second inlet and second liquid outlet interconnect.
Alternatively, the connection component includes two connecting rods and multiple connecting plates.Each connecting plate is arranged at described
Between two connecting rods, and it is fixedly connected respectively with each connecting rod, described two connecting rods and each connecting plate are arranged at
The first layer battery modules are pasted away from the first liquid cooling apparatus side, each connecting plate with the first layer battery modules
Close, edge of described two connecting rods respectively with the first layer battery modules is bonded, the edge of the second layer battery modules
It is bonded with side of described two connecting rods away from the first layer battery modules, and with each connecting plate away from described first
The side fitting of layer battery modules, one end of each fixing piece sequentially passes through the second layer battery modules and described two companies
The joint place of extension bar, the joint place of described two connecting rods and the first layer battery modules, and with the bottom of the Battery case
Portion is fixedly connected.
Alternatively, the connecting rod is provided with multiple connection through holes, and the edges of the first layer battery modules is provided with more
A first connecting hole, the edge of the second layer battery modules are provided with multiple second connecting holes.When described two connecting rods point
When not being bonded with the edge of the first layer battery modules, each connection through hole is corresponding with each first connecting hole, when
Edge of side of described two connecting rods away from the first layer battery modules respectively with the second layer battery modules is bonded
When, each connection through hole is corresponding with each second connecting hole, and one end of each fixing piece sequentially passes through each described the
Two connecting holes, each connection through hole, each first connecting hole, and be fixedly connected with the bottom of the Battery case.
Alternatively, the electric commercial vehicle battery pack has further included the first high voltage interface and the second high voltage interface.Described
One high voltage interface nesting is arranged at first madial wall, and is electrically connected with the cell managing device, second high pressure
Interface nesting is arranged at second madial wall, and is electrically connected with the battery cutout device.
Alternatively, the electric commercial vehicle battery pack is additionally provided with communication interface, and the communication interface nesting is arranged at institute
State position of first madial wall away from first high voltage interface.
Alternatively, the electric commercial vehicle battery pack further includes confluence component.The confluence component and first layer battery mould
Group and second layer battery modules are electrically connected, and the first end of the confluence component is arranged at first high voltage interface, the remittance
The second end and the battery cutout device for flowing component are electrically connected and pass through the battery cutout device to be arranged at described second
High voltage interface.
The embodiment of the present invention additionally provides a kind of battery pack system, including connecting line and multiple above-mentioned electric commercial vehicle batteries
Bag.Wherein, each electric commercial vehicle battery pack is electrically connected by the connecting line.
Alternatively, the electric commercial vehicle battery pack includes the first electric commercial vehicle battery pack and the second electric commercial vehicle electricity
Chi Bao.The first end of the connecting line and the second high voltage interface of the first electric commercial vehicle battery pack are electrically connected, described
The second end of connecting line and the second high voltage interface of the second electric commercial vehicle battery pack are electrically connected.
Electric commercial vehicle battery pack provided in an embodiment of the present invention and battery pack system, using binodal battery modules and bilayer
Liquid cooling apparatus is arranged alternately, and improves the energy density of battery modules and the heat management efficiency of battery pack, and the setting of cushion pad subtracts
The small received impact of battery pack, cell managing device and battery cutout device can be monitored the performance of battery modules, whole
The duration performance and security performance of a electric commercial vehicle battery pack are improved.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
A kind of structure diagram for electric commercial vehicle battery pack that Fig. 1 is provided by the embodiment of the present invention.
The structure diagram of battery modules after a kind of assembling that Fig. 2 is provided by the embodiment of the present invention.
A kind of 3rd visual angle schematic diagram of Battery case that Fig. 3 is provided by the embodiment of the present invention.
A kind of structure diagram for connection component that Fig. 4 is provided by the embodiment of the present invention.
Fig. 5 is the enlarged diagram in A portions in Fig. 4.
A kind of first visual angle schematic diagram of electric commercial vehicle battery pack that Fig. 6 is provided by the embodiment of the present invention.
A kind of second visual angle schematic diagram of Battery case that Fig. 7 is provided by the embodiment of the present invention.
A kind of battery pack system structure diagram that Fig. 8 is provided by the embodiment of the present invention.
Icon：100- electric commercial vehicle battery packs；200- battery pack systems；1- Battery cases；The first high voltage interfaces of 11-；
The second high voltage interfaces of 12-；13- communication interfaces；14- fixes beam assembly；15- lifting lugs；16- sealing rings；17- battery modules fix metal plate
Gold；18- cell managing devices fix metal plate；19- battery cutouts device fixes metal plate；2- first layer battery modules；The 3- second layers
Battery modules；4- connection components；41- connecting rods；411- connection through holes；42- connecting plates；43- fasteners；51- the first liquid cold charges
Put；The second liquid cooling apparatus of 52-；53- liquid cooling pipes road device；61- cell managing devices；62- battery cutout devices；The explosion-proof dresses of 63-
Put；7- fixing pieces；The first busbars of 81-；The second busbars of 82-；Busbar among 83-；9- connecting lines.
Embodiment
Power battery pack is the core component of pure electric vehicle commercial car, its performance is directly related to holding for pure electric vehicle commercial car
Continuous, safe and reliable operation.
It further investigation reveals that, the duration performance and security performance of existing most power battery pack are poor, can not meet pure electricity
Dynamic the lasting of commercial car, safe and reliable operation.
Based on the studies above, an embodiment of the present invention provides a kind of electric commercial vehicle battery pack and battery pack system, to
The problem of improving duration performance existing for existing power battery pack and poor safety performance.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment only
It is the part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings
The component of embodiment can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
Fig. 1 shows a kind of structure diagram for electric commercial vehicle battery pack that the embodiment of the present invention is provided, can by figure
See, which includes Battery case 1, first layer battery modules, second layer battery modules 3, connection group
Part, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad, cell managing device, battery cutout device and multiple fixing pieces.Its
In, first layer battery modules, second layer battery modules 3, connection component, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad,
Cell managing device, battery cutout device are arranged at the inside of Battery case 1, cell managing device, battery cutout device difference
It is electrically connected with first layer battery modules and second layer battery modules, one end of each fixing piece sequentially passes through second layer battery mould
Group, connection component and first layer battery modules, and it is fixedly connected on the bottom of Battery case 1.
Fig. 1 is continued referring to, as seen from the figure, which further includes the first high voltage interface 11, second
High voltage interface 12, communication interface 13, fixed beam assembly 14, lifting lug 15 and sealing ring 16.In the present embodiment, Battery case 1 can
Think that there is the cuboid of opening in side, sealing ring 16 is arranged at the opening of Battery case 1, when the upper cover and battery of Battery case
During the openings snap-fit of babinet 1, sealing ring 16 can guarantee that the air-tightness of whole electric commercial vehicle battery pack 100.
First high voltage interface 11 and the second high voltage interface 12 nested the first madial wall for being arranged at Battery case 1 and respectively
Two madial walls, wherein, the first madial wall and the second madial wall are opposite, and the first high voltage interface 11 electrically connects with cell managing device
Connect, the second high voltage interface 12 is electrically connected with battery cutout device.
13 nesting of communication interface is arranged at position of first madial wall away from the first high voltage interface 11, as seen from Figure 1, communication
Interface 13 is arranged at the lower section of the first high voltage interface 11.
Fixed beam assembly 14 and lifting lug 15 are arranged at the exterior bottom of Battery case 1, and fixed beam assembly 14 and lifting lug 15 are solid
Fixed connection, fixed beam assembly 14 are used for the structural strength for increasing whole Battery case 1, and lifting lug 15 is used to aid in whole Battery case
1 is moved, for example, lifting lug 15 and external mobile devices can be carried out detachable connection, by external mobile devices to whole
A Battery case is moved.
Since most of component shown in Fig. 1 is placed in box house, for ease of describing the relative position between each component
And connection relation, Fig. 2 is refer to, the structural representation of the battery modules after a kind of assembling provided by the embodiment of the present invention
Figure.
From Figure 2 it can be seen that the first liquid cooling apparatus 51 and the second liquid cooling apparatus 52 are platy structure, the first liquid cooling apparatus 51 and
The inside of two liquid cooling apparatus 52 is cavity, and the first liquid cooling apparatus 51 is provided with the first inlet and the close to the side of the first madial wall
One liquid outlet, the second liquid cooling apparatus 52 is provided with the second inlet and the second liquid outlet close to one end of the first madial wall, by Fig. 2
It can be seen that each inlet, liquid outlet are cylindrical-shaped structure, wherein, the first inlet and the first liquid outlet respectively with the first liquid cooling apparatus
51 connects with the internal cavities, the second inlet and the second liquid outlet connects with the internal cavities with the second liquid cooling apparatus 52 respectively.
Fig. 1 and Fig. 2 are please referred to, which further includes piping installation 53, refer to Fig. 1, pipe
Road device 53 be arranged at the first madial wall of Battery case 1 close to the position of cell managing device and with the first feed liquor in Fig. 2
Mouth, the first liquid outlet, the second inlet and the connection of the second liquid outlet.
It is appreciated that the piping installation 53 in the first liquid cooling apparatus 51, the second liquid cooling apparatus 52 and Fig. 1 in Fig. 2 forms
Liquid cooling system, for battery modules to be carried out with heat management, such as heating and cooling.
Please continue to refer to Fig. 2, the first liquid cooling apparatus 51 is arranged at cushion pad and (is located at the first liquid cooling apparatus bottom, in figure not
Show) side, first layer battery modules 2 are arranged at the first side of the liquid cooling apparatus 51 away from cushion pad, and connection component 4 is arranged at
Side of the first layer battery modules 2 away from the first liquid cooling apparatus 51, the second liquid cooling apparatus 52 are arranged at connection component 4 away from first
The side of layer battery modules 2, second layer battery modules 3 are arranged at the second side of the liquid cooling apparatus 52 away from connection component 4, each solid
Determine part 7 and sequentially pass through second layer battery modules 3, connection component 4 and first layer battery modules 2, and be fixedly connected in Fig. 3 and show
Battery modules fix metal plate 17, the effect of fixing piece 7 is the battery being fixedly connected on the overall structure shown in Fig. 2 in Fig. 3
Module fixes metal plate 17.As seen from Figure 2, fixing piece 7 is long bolt, its outside diameter fixes metal plate 17 with battery modules in Fig. 3
The internal diameter of each mounting hole of upper setting is adapted.
Please continue to refer to Fig. 2, each battery modules of first layer battery modules 2 and each battery mould of second layer battery modules 3
Group is electrically connected by each middle busbar 83, so set, the energy of each battery modules can be subjected to confluence set, so that
Increase the energy density of whole electric commercial vehicle battery pack.
Fig. 3 is continued referring to, the inside of Battery case is also provided with cell managing device and fixes metal plate 18 and battery cutout
Device fixes metal plate 19, it will be understood that cell managing device fixes metal plate 18 and is used to fix cell managing device, battery cutout dress
Fixed metal plate 19 is put to be used to fix battery cutout device.
Fig. 4 shows a kind of structure diagram for connection component that the embodiment of the present invention is provided, as seen from the figure, the connection
Component includes two connecting rods 41 and multiple connecting plates 42, and each connecting plate 42 is arranged between two connecting rods 41, and with it is each
Connecting rod 41 is fixedly connected.
Fig. 5 is the enlarged diagram in A portions in Fig. 4, and as seen from Figure 5, connecting rod 41 is provided with multiple connection through holes 411, Fig. 2
Shown in each fixing piece 7 one end can to pass through it is each connection through hole 411, alternatively, the knot of each connecting plate 42 and connecting rod 41
Fastener 43 can be set at conjunction, be used for realization the detachable connection of each connecting plate 42 and connecting rod 41.
Please refer to Fig. 5 and Fig. 2, connection component 4 be arranged at first layer battery modules 2 and second layer battery modules 3 it
Between when, the edge of first layer battery modules 2 and second layer battery modules 3 is bonded with each connecting rod 41 respectively, wherein, first layer electricity
Pond module 2 and the edge of second layer battery modules 3 are respectively arranged with multiple first connecting holes and multiple second connecting holes, and each first
Connecting hole, each connection through hole 411 and each second connecting hole correspond to, and one end of each fixing piece 7 in Fig. 2 sequentially passes through each first and connects
Connect hole, each connection through hole 411 and each second connecting hole, and be fixed on battery modules in Fig. 3 fix on metal plate 17 set it is each solid
Determine hole.It is achieved in the fixation to above-mentioned component.So set, improve the space utilization of whole electric commercial vehicle battery pack
Rate, the design of double-deck liquid cooling plate and bilayer cells module had not only added heat management efficiency but also had improved energy density, and then improved
The cruising ability of whole electric commercial vehicle battery pack.
Fig. 6 shows a kind of the first visual angle schematic diagram of electric commercial vehicle battery pack that the embodiment of the present invention is provided.By
Figure is as it can be seen that cell managing device 61 is arranged at Battery case close to the position of the first madial wall, and is fixedly connected in Fig. 3 and shows
Cell managing device fix metal plate 18, battery cutout device 62 is arranged at Battery case close to the position of the second madial wall, and
It is fixedly connected on the battery cutout device shown in Fig. 3 and fixes metal plate 19.
First busbar 81 is electrically connected with busbar among part, and one end of the first busbar 81 is arranged at the first high pressure
Interface, the first busbar 81 are electrically connected with cell managing device 61.Second busbar 82 electrically connects with busbar among part
Connect, one end of the second busbar 82 is arranged at the second high voltage interface, and the second busbar 82 is electrically connected with battery cutout device 62.
First busbar 81, the second busbar 82 and multiple middle busbars constitute confluence component.
63 nesting of explosion-protection equipment is arranged at the second madial wall, to connect the inside and outside of Battery case.
Wherein, the effect of cell managing device 61 mainly carries out the parameters such as the voltage, electric current and temperature of battery in real time
Detect and control it all the time in the range of the running parameter of permission, while test constantly is carried out to battery system insulation resistance.Electricity
The effect of pond disconnecting device 62 is mainly turned off, closes major loop and preliminary filling circuit, to be cut to major loop and preliminary filling circuit
Change and break-make controls；The transient current in charge and discharge process is gathered, to judge charging and discharging state；Battery pack is filled by battery cutout
Put 62 output terminals connection high voltage interface and discharge and recharge is carried out to battery pack.Explosion-protection equipment 63 can discharge gas excessive in battery pack in time
Pressure, and explode caused by the pressure that can prevent from battery pack increasing rapidly during thermal run away.
A kind of second visual angle schematic diagram of Battery case that Fig. 7 is provided by the embodiment of the present invention, as seen from the figure, fixed beam
Component 14 includes multiple crossbeams and multiple longerons, and each crossbeam and each longeron are staggered and are fixed on the bottom of Battery case, increases
The structural strength of whole Battery case is added.
Based on this, Fig. 8 shows a kind of structure diagram for battery pack system that the embodiment of the present invention is provided, can by figure
See, which includes connecting line 9 and two above-mentioned electric commercial vehicle battery packs.
Wherein, second high voltage interface of the both ends of connecting line 9 respectively with each electric commercial vehicle battery pack is electrically connected, with reality
The series connection of existing two electric commercial vehicle battery packs, so set, the energy of two electric commercial vehicle battery packs is further gathered,
So as to further increase energy density.
To sum up, electric commercial vehicle battery pack provided in an embodiment of the present invention and battery pack system, have carried out structure ingenious
Design, had not only added the energy density of battery pack by bilayer cells module and double-deck liquid cooling plate but also had improved heat management efficiency,
The setting of cell managing device, battery cutout device and explosion-protection equipment improves the stable of whole electric commercial vehicle battery pack
Property and security, when there are abnormal conditions, battery cutout device energy line disconnection avoids abnormal conditions from further expanding, whole
The duration performance and security performance of a electric commercial vehicle battery pack are improved.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. electric commercial vehicle battery pack, it is characterised in that including：Battery case, first layer battery modules, second layer battery Module, connection component, the first liquid cooling apparatus, the second liquid cooling apparatus, cushion pad, cell managing device, battery cutout device and more A fixing piece；It is cavity inside the Battery case, the cushion pad is arranged in the cavity, and positioned at the bottom of the Battery case Portion；First liquid cooling apparatus is arranged at bottom side of the cushion pad away from the Battery case；The first layer battery modules are arranged at first liquid cooling apparatus away from the cushion pad side；The connection component is arranged at the first layer battery modules away from the first liquid cooling apparatus side；Second liquid cooling apparatus is arranged at the connection component away from the first layer battery modules side；The second layer battery modules are arranged at second liquid cooling apparatus away from the connection component side；The cell managing device is arranged in the cavity, and positioned at the first madial wall of the Battery case, the battery Managing device is electrically connected with the first layer battery modules and the second layer battery modules；The battery cutout device is arranged in the cavity, and is located at the second madial wall of the Battery case, and described second Madial wall is opposite with first madial wall, the battery cutout device and the first layer battery modules and second layer electricity Pond module is electrically connected；One end of each fixing piece sequentially passes through the second layer battery modules, the connection component and the first layer battery Module, and be fixedly connected with the bottom of the Battery case.
- 2. electric commercial vehicle battery pack according to claim 1, it is characterised in that the electric commercial vehicle battery pack is also wrapped Include liquid cooling pipe road device；Liquid cooling pipe road device is arranged inside the Battery case, and close positioned at the first madial wall of the Battery case The position of the cell managing device；Liquid cooling pipe road device is connected with first liquid cooling apparatus and second liquid cooling apparatus.
- 3. electric commercial vehicle battery pack according to claim 2, it is characterised in that first liquid cooling apparatus and described Two liquid cooling apparatus are platy structure；It is cavity inside first liquid cooling apparatus and second liquid cooling apparatus；First liquid cooling apparatus is provided with the first inlet and the first liquid outlet close to one end of first madial wall；It is described The internal cavities of first inlet, first liquid outlet and first liquid cooling apparatus interconnect；Second liquid cooling apparatus is provided with the second inlet and the second liquid outlet close to one end of first madial wall；It is described The internal cavities of second inlet, second liquid outlet and second liquid cooling apparatus interconnect；The piping installation, first inlet, first liquid outlet, second inlet and second liquid outlet Interconnect.
- 4. electric commercial vehicle battery pack according to claim 1, it is characterised in that the connection component includes two connections Bar and multiple connecting plates；Each connecting plate is arranged between described two connecting rods, and is fixedly connected respectively with each connecting rod；Described two connecting rods and each connecting plate are arranged at the first layer battery modules away from first liquid cooling apparatus Side, each connecting plate are bonded with the first layer battery modules；Described two connecting rods respectively with the first layer battery The edge fitting of module；The edge of the second layer battery modules is bonded with side of described two connecting rods away from the first layer battery modules, And it is bonded with side of each connecting plate away from the first layer battery modules；One end of each fixing piece sequentially passes through the joint place, described of the second layer battery modules and described two connecting rods The joint place of two connecting rods and the first layer battery modules, and be fixedly connected with the bottom of the Battery case.
- 5. electric commercial vehicle battery pack according to claim 4, it is characterised in that the connecting rod is provided with multiple connections Through hole, the edge of the first layer battery modules are provided with multiple first connecting holes, and the edge of the second layer battery modules is set It is equipped with multiple second connecting holes；When described two connecting rods are bonded with the edge of the first layer battery modules respectively, each connection through hole and each institute It is corresponding to state the first connecting hole；When side of described two connecting rods away from the first layer battery modules side with the second layer battery modules respectively When edge is bonded, each connection through hole is corresponding with each second connecting hole；One end of each fixing piece sequentially passes through each second connecting hole, each connection through hole, each first connection Hole, and be fixedly connected with the bottom of the Battery case.
- 6. electric commercial vehicle battery pack according to claim 1, it is characterised in that the electric commercial vehicle battery pack is also wrapped The first high voltage interface and the second high voltage interface are included；The first high voltage interface nesting is arranged at first madial wall, and is electrically connected with the cell managing device；The second high voltage interface nesting is arranged at second madial wall, and is electrically connected with the battery cutout device.
- 7. electric commercial vehicle battery pack according to claim 6, it is characterised in that the electric commercial vehicle battery pack is also set It is equipped with communication interface；The communication interface nesting is arranged at position of first madial wall away from first high voltage interface.
- 8. electric commercial vehicle battery pack according to claim 6, it is characterised in that the electric commercial vehicle battery pack is also wrapped Include confluence component；The confluence component is electrically connected with first layer battery modules and second layer battery modules；The first end of the confluence component is arranged at first high voltage interface；The second end of the confluence component is electrically connected with the battery cutout device and passes through the battery cutout device to set In second high voltage interface.
- A kind of 9. battery pack system, it is characterised in that including：Multiple the claims 1-8 any one of them electric commercial vehicle battery packs；Connecting line；Each electric commercial vehicle battery pack is electrically connected by the connecting line.
- 10. battery pack system according to claim 9, it is characterised in that the electric commercial vehicle battery pack includes first Electric commercial vehicle battery pack and the second electric commercial vehicle battery pack；The first end of the connecting line and the second high voltage interface of the first electric commercial vehicle battery pack are electrically connected；The second end of the connecting line and the second high voltage interface of the second electric commercial vehicle battery pack are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810016995.9A CN108039438A (en) | 2018-01-08 | 2018-01-08 | Electric commercial vehicle battery pack and battery pack system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810016995.9A CN108039438A (en) | 2018-01-08 | 2018-01-08 | Electric commercial vehicle battery pack and battery pack system |
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| CN108039438A true CN108039438A (en) | 2018-05-15 |
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| CN201810016995.9A Pending CN108039438A (en) | 2018-01-08 | 2018-01-08 | Electric commercial vehicle battery pack and battery pack system |
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| CN (1) | CN108039438A (en) |
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