CN108923007B - High-efficiency power battery module - Google Patents

High-efficiency power battery module Download PDF

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Publication number
CN108923007B
CN108923007B CN201810955959.9A CN201810955959A CN108923007B CN 108923007 B CN108923007 B CN 108923007B CN 201810955959 A CN201810955959 A CN 201810955959A CN 108923007 B CN108923007 B CN 108923007B
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China
Prior art keywords
plate
plates
buckles
conductive sheet
busbar
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CN201810955959.9A
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CN108923007A (en
Inventor
吴松彦
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Guangdong Yixinfeng Intelligent Equipment Co ltd
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Guangdong Yixinfeng Intelligent Equipment Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6554Rods or plates
    • H01M10/6555Rods or plates arranged between the cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561Gases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy 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)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to the field of lithium batteries, in particular to a high-efficiency power battery module, which comprises an outer frame, a plurality of groups of batteries arranged in the outer frame and a connector for connecting the batteries in series, wherein the outer frame comprises two side plates arranged in parallel, two end plates connected to two ends of the two side plates arranged in parallel, and a plurality of partition plates arranged between the two side plates and parallel to the end plates; the battery separator also comprises a heat conducting plate which is arranged on the inner side of the separator and is attached to the battery. The invention has the advantages of convenient installation, good stability and strong reliability, and is beneficial to reducing potential safety hazard.

Description

High-efficiency power battery module
Technical Field
The invention relates to the field of lithium batteries, in particular to a high-efficiency power battery module.
Background
The battery module is a battery pack formed by connecting a plurality of power battery cells in series or in parallel, so that the whole battery module can meet the requirement of products on electric energy. At present, the largest power battery industry in the world exists in China, and the performance of the power lithium battery pack serving as a core component of the new energy automobile is certainly key to the healthy development of the new energy automobile industry. Because the electric automobile needs to drive all parts in the automobile at high voltage, hundreds or even thousands of single batteries are connected in series and parallel to form a battery pack to meet the power supply requirement of the electric automobile. Among the currently used battery types, the lithium ion battery has a plurality of advantages such as high energy density and low self-discharge rate, and is used in new energy automobiles. However, throughout the life cycle of the lithium ion battery pack, imbalance of the battery cells in the battery system pack is common. The assembly is an important ring in the subsequent procedures of the production process of the power lithium battery pack, has extremely high requirements on the assembly environment and the assembly precision, and the assembly efficiency of the power lithium battery pack can necessarily become a main bottleneck for limiting the productivity and the cost of the new energy automobile. The lithium battery module assembly and the PACK are important production links, most of the lithium battery modules still stay in the manual operation stage, the production efficiency is low, the error rate is high, the assembly precision can not meet the requirements, the labor intensity is high, and the personal safety can not be guaranteed. Along with the industrialized development of the lithium battery industry, the requirement of a rapidly-increased battery module cannot be met by the conventional industrial production mode, so that the improvement of the automation degree of the production process is imperative to improve the production efficiency, reduce the failure rate and lighten the labor intensity.
The temperature of each area in the power battery module in the prior art is unbalanced. Thus, the consistency of the long-term battery becomes poor, the battery performance and the output stability become poor, the service life of the battery can be shortened or the use is safe due to the serious battery performance and the output stability, and the problems of poor stability, potential safety hazard easily occur and the like exist.
Disclosure of Invention
In order to solve the problems, the invention provides the high-efficiency power battery module which is convenient to install, good in stability and strong in reliability and is beneficial to reducing potential safety hazards.
The technical scheme adopted by the invention is as follows: the high-efficiency power battery module comprises an outer frame, a plurality of groups of batteries arranged in the outer frame, and a connector for connecting the plurality of groups of batteries in series, wherein the outer frame comprises two side plates which are arranged in parallel, two end plates which are connected with two ends of the two side plates which are arranged in parallel, and a plurality of partition plates which are arranged between the two side plates and are parallel to the end plates, and the plurality of groups of batteries are separated by the partition plates; the battery separator also comprises a heat conducting plate which is arranged on the inner side of the separator and is attached to the battery.
The scheme is further improved in that the outer frame further comprises a plurality of binding belts which are bound outside the side plates and the end plates.
The scheme is further improved that the side plate comprises a straight plate-shaped main body, buckling parts of cylinders which are positioned at two ends of the width direction of the main body and are used for being buckled with the partition plates, and grooves which are arranged in parallel along the length direction of the main body and are used for accommodating the binding belts; the ribbon is clamped in the groove; the buckling part of the corresponding side plate of the partition plate is provided with a cylindrical buckling groove for accommodating the buckling part; the buckling part is clamped in the buckling groove.
The end plate is formed by splicing four splice plates, each splice plate is provided with a first connecting block and a first connecting groove, each splice plate is connected with the first connecting groove through the first connecting block, and an adjustable first connecting part is arranged between the first connecting block and the first connecting groove; the first connecting part comprises a plurality of first busbar buckles arranged on the first connecting block and first male busbar buckles arranged on the first connecting groove and corresponding to the first busbar buckles, and the first connecting block is connected with the first connecting groove through the first male busbar buckles and the first female busbar buckles in a buckled mode.
The scheme is further improved in that the partition plate is formed by splicing four corner plates, each group of corner plates is provided with a second connecting block and a second connecting groove, the corner plates are spliced and connected through the second connecting blocks and the second connecting grooves, and a second connecting part is arranged between the second connecting blocks and the second connecting grooves to be connected; clamping parts are arranged on two sides of the partition plate body, and a supporting plate is arranged below the partition plate body; the second connecting component comprises a plurality of second busbar buckles arranged on the second connecting block and second male busbar buckles arranged on the second connecting grooves and corresponding to the second busbar buckles, and the second connecting block is connected with the second connecting grooves through the second male busbar buckles and the second female busbar buckles.
The connector comprises an insulating flame-retardant plastic frame, and a first conductive sheet and a second conductive sheet which are attached to the insulating flame-retardant plastic frame and are respectively connected with two batteries; the part of the first conductive sheet and the second conductive sheet, which is positioned inside the insulating flame-retardant plastic frame, is arranged in an arch bridge shape, a gap is arranged between the first conductive sheet and the second conductive sheet, a high-temperature fusing material is filled in the gap, and the flame-retardant arc-extinguishing cover is covered outside the arch bridge structure of the first conductive sheet and the second conductive sheet.
The technical scheme is further improved that the first conductive sheet comprises a first straight part attached to the insulating flame-retardant plastic frame and a first inclined part positioned in the flame-retardant arc-extinguishing cover, and the second conductive sheet comprises a second straight part attached to the insulating flame-retardant plastic frame and a second inclined part positioned in the flame-retardant arc-extinguishing cover; the first inclined part and the second inclined part are opposite in inclination direction, and form an arch bridge structure; the first straight part and the first inclined part are integrally formed, and the second straight part and the second inclined part are integrally formed; the insulation flame-retardant plastic frame is provided with a fuse accommodating groove, and the fuse accommodating groove is positioned at the bottoms of the first inclined part and the second inclined part.
The heat conducting plate comprises a plate body, at least one end of the plate body is provided with a connecting plate, a quick connector is connected to the connecting plate, a plurality of heat conducting channels are arranged in the plate body, a plurality of support columns are arranged in the heat conducting channels, the support columns and the plate body are integrally formed, a plurality of air outlet holes are formed in at least one surface of the plate body, and sealing gaskets are arranged at the connecting positions of the connecting plate and the plate body.
The scheme is further improved in that the outer surface of the heat conducting plate body is provided with an insulating resin layer; the connecting plate is provided with a connecting channel, and the connecting channel is used for communicating the heat conduction channel with the quick connector.
In a further improvement of the scheme, a cover plate is arranged on the surface of the outer frame.
The beneficial effects of the invention are as follows:
According to the first aspect, the outer frame is arranged to fixedly mount the batteries, the connector is arranged to serially connect the batteries, and particularly the batteries are fixedly mounted through the outer frame, so that the device is convenient to mount, good in fixing effect, capable of guaranteeing stability of serial connection of the batteries, guaranteeing stability and reliability of use, convenient to connect, good in serial connection effect and high in use safety; in the second aspect, the side plates, the end plates and the splice plates are arranged on the outer frame to fixedly mount the battery, specifically, the battery is supported and fixed through the splice plates, a plurality of groups of splice plates can be spliced to realize the fixed mounting of a plurality of batteries, the fixing effect is good, the installation is convenient, the side plates are arranged to play a role in connecting and fixing the splice plates, the unstable splicing of the splice plates is prevented, the stability is improved, the end plates are arranged to seal edges at two ends, the fixing effect is good, the installation is convenient, the reliability is high, and the stability is strong; in the third aspect, the heat conducting plate is arranged on the inner side of the splice plate, and can conduct out heat in the use process of the battery, so that the heat conducting, heat dissipation and cooling effects are realized, and the heat dissipation effect is good.
The frame is equipped with a plurality of and ties up in curb plate and the outside ribbon of end plate, still is equipped with a plurality of ribbon, and in the recess of curb plate was located to the ribbon card, spacing curb plate, end plate etc. has further increased the steadiness of frame, prevents that battery module from shifting the circuit short circuit or breaking that cause, is favorable to reducing the potential safety hazard.
The end plate is formed by splicing a plurality of splice plates, the installation is convenient, and the splice plates are arranged at the same time, so that the production efficiency is high and the cost is low; the first connecting grooves and the first connecting blocks are arranged on each group of splice plates, and the splice is realized through the first connecting grooves and the first connecting blocks, so that the splice is convenient to install, the splice is directly buckled, and the installation time and the cost are saved; an adjustable first connecting part is arranged between the first connecting block and the first connecting groove, and the function of the adjustable first connecting part is that a plurality of groups of splice plates can be adjusted in actual use so as to adapt to the installation and use of battery modules with different sizes, so that the universality of the invention is greatly improved, and the application range is wide. The first connecting part comprises a plurality of first busbar buckles arranged on the first connecting block and first male busbar buckles arranged on the first connecting groove and corresponding to the first busbar buckles, the first connecting block is connected with the first connecting groove through the first male busbar buckles and the first female busbar buckles in a buckling mode, specifically, the first male busbar buckles and the first female busbar buckles are in a structure buckling mode, the connection is convenient, the buckling effect is good, the locking is not needed to be additionally achieved, the adjustment is convenient, and the installation is convenient; the split type split joint plate structure is divided into four split joint plate structures, the size of a battery module can be adjusted at will and assembled flexibly, the problem that the structure of the prior art cannot be universal is solved, and the split type split joint plate structure can meet the assembly of the battery modules with different specifications through the combined standard parts in different modes, has strong universality and wide application range.
The partition plate main body is arranged to be assembled by splicing a plurality of corner plates, so that the partition plate main body is convenient to install in actual use, good in fixing effect in isolating assembled batteries of the battery modules, good in isolating effect and convenient to assemble; the angle plates are selected for assembly, so that a plurality of angles of the battery can be fixedly isolated, the use safety and insulation effect of the battery module are ensured, and the reliability is high; the angle plate is provided with the second connecting block and the second connecting groove for splicing connection, specifically, the splicing is realized through the second connecting groove and the second connecting block, the splicing and the installation are convenient, the direct buckling is realized, and the installation time and the cost are saved; an adjustable second connecting component is arranged between the second connecting block and the second connecting groove, and the function of the adjustable second connecting component is that a plurality of groups of partition boards can be adjusted in actual use so as to adapt to the installation and use of battery modules with different sizes, so that the universality of the invention is greatly improved, and the application range is wide; the baffle body both sides are equipped with joint portion, and baffle body below is equipped with the bearing board, specifically can carry out mutual joint with a plurality of baffles through joint portion and link to each other, realizes the equipment of a plurality of batteries and forms battery module after connecting, and the effect that sets up the bearing board is fixed with the battery bearing, improves and supports effectual fixed effect, improves holistic stability and the security of using. The second connecting component comprises a plurality of second busbar buckles arranged on the second connecting block and a second public busbar buckle arranged on the second connecting groove and corresponding to the second busbar buckle, the second connecting block is connected with the second connecting groove through the second public busbar buckle and the second public busbar buckle, and particularly, the second public busbar buckle and the second public busbar buckle are buckled, so that the second connecting component is convenient to connect, good in buckling effect, convenient to adjust and convenient to install, can be divided into four separable corner plate structures, can be assembled flexibly by adjusting the battery size of a battery module more at will, solves the problem that the structure of the prior art cannot be universal, can meet the assembly of the battery modules with different specifications through the combined standard components in different modes, and is high in universality and wide in application range.
The connector is provided with the first conducting strip and the second conducting strip and is connected through the high-temperature fusing material, when a certain battery is subjected to short-circuit fault and rapid temperature rise, heat is conducted to the high-temperature fusing material to cause the high-temperature fusing material to fuse, so that a circuit break is formed between the batteries, heat conduction to other conducting strips and the batteries is prevented, explosion or fire of the battery module is caused, and under the condition that the battery module works normally, the automatic high-temperature fusing is facilitated, and potential safety hazards are reduced. The fire-retardant arc-extinguishing cover is covered outside the arch bridge-shaped structure of the first conducting strip and the second conducting strip, and when the high-temperature fusing material is fused, the fire-retardant arc-extinguishing cover is used for isolating the outside, so that sparks are prevented from splashing, and potential safety hazards are further reduced. The arch bridge is arranged in a row, so that the first conducting strip and the second conducting strip are convenient to stably connect with high-temperature fusing materials, the high-temperature fusing function is better achieved, and potential safety hazards are further reduced.
The first conductive sheet comprises a first straight part attached to the insulating flame-retardant plastic frame and a first inclined part positioned in the flame-retardant arc-extinguishing cover, and the second conductive sheet comprises a second straight part attached to the insulating flame-retardant plastic frame and a second inclined part positioned in the flame-retardant arc-extinguishing cover; the first inclined part and the second inclined part are opposite in inclination direction, and form an arch bridge structure; the first straight part and the first inclined part are integrally formed, and the second straight part and the second inclined part are integrally formed. The battery connector has the advantages of stable integral structure, convenient use, safety and reliability. The insulating flame-retardant plastic frame is provided with a fuse accommodating groove, and the fuse accommodating groove is positioned at the bottoms of the first inclined part and the second inclined part. Through the unified fuse of collecting of fuse accepting groove, prevent that it from dropping at will and scalding other objects, further reduce the potential safety hazard, the recycling of the fuse of being convenient for simultaneously, the fuse of collecting can reuse, and resource utilization is high.
The heat conducting plate is provided with the plate body, the heat conducting effect on the battery pack is realized through the plate body, heat generated in the use of the battery pack is conducted out through the plate body to dissipate heat, the heat dissipation effect is good, and the stability is strong; the connecting plates are arranged at one end or two ends of the plate body, the quick connectors are arranged on the connecting plates, the plate body is provided with a heat conduction channel which is communicated with the connecting plates and the quick connectors, the connecting plates are connected through the quick connectors, and the gas led in by the quick connectors is connected to lead out the heat induced in the battery pack by the lead-in plate body, so that the heat conduction effect is realized, the heat emitted in the battery pack can be quickly led out, the heat conduction effect is good, and the heat conduction efficiency is high; a plurality of support columns are arranged in the heat conduction channel, and the support columns and the heat conduction plate are integrally stretched and die-cast to be formed, so that the processing is not needed, the integral forming is realized, the integral strength of the lead-in plate body is higher, and the stronger supporting effect, the compression resistance and the deformation resistance can be realized through the action of the support columns; the heat conduction channels are divided into a plurality of oval shapes through the support columns, so that the support effect can be further improved, the heat conduction channels can play a good role in heat conduction in the use process, and meanwhile, the use strength can be improved; the air outlet holes are formed in at least one surface of the plate body, guided out hot air is discharged through the action of the air outlet holes, the rapid air exchange and heat conduction effects are realized, the heat conduction effect is good, and the stability and the reliability are strong; in a sixth aspect, the connection position of the connection plate and the plate body is provided with a sealing gasket, and the sealing gasket can improve sealing effect, so that sealing effect is achieved when the quick connector is connected with air guide and heat conduction, and stable heat conduction is ensured. The heat conduction channel can circulate cold and warm air bodies, and the air is blown to the place where the battery pack needs to be temperature-regulated through the air guide hole, so that the whole coverage of the temperature control of the battery pack is realized.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an exploded view of the end plate of the present invention;
FIG. 4 is an exploded view of the separator of the present invention;
FIG. 5 is an exploded view of the connector of the present invention;
FIG. 6 is a top view of the connector of the present invention;
FIG. 7 is a section A-A of FIG. 6;
FIG. 8 is an enlarged view at B of FIG. 7;
FIG. 9 is a perspective view of a heat-conducting plate of the present invention;
FIG. 10 is a schematic view of a portion of a heat-conductive plate of the present invention;
FIG. 11 is a section A-A of FIG. 10;
fig. 12 is a sectional view of B-B of fig. 10.
Reference numerals illustrate: the battery module 10, the outer frame 100, the side plates 110, the body 111, the groove 112, the clip 113, the end plate 120, the splice plate 121, the first connection block 122, the first connection groove 123, the first female button 124, the first male button 125, the separator 130, the corner plate 131, the second connection block 132, the second connection groove 133, the clamping portion 134, the support plate 135, the second female button 136, the second male button 137, the tie 140, the cover plate 150, the battery 200, the connector 300, the insulating flame retardant plastic frame 310, the first conductive sheet 320, the first flat portion 321, the first inclined portion 322, the second conductive sheet 330, the second flat portion 331, the second inclined portion 332, the high temperature fusing material 340, the flame retardant arc extinguishing cover 350, the fuse accommodating groove 360, the heat conductive plate 400, the plate body 410, the heat conductive channel 411, the support post 412, the air outlet hole 413, the connection plate 420, the connection channel 421, the quick connector 430, and the gasket 440.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 2, a high efficiency power battery module 10 includes an outer frame 100, a plurality of groups of batteries 200 disposed in the outer frame 100, and a connector 300 for connecting the plurality of groups of batteries 200 in series, wherein the outer frame 100 includes two parallel side plates 110, two end plates 120 connected to both ends of the two parallel side plates 110, and a plurality of separators 130 disposed between the two side plates 110 and parallel to the end plates 120, and the plurality of groups of batteries 200 are separated by the separators 130; and a heat conductive plate 400 provided inside the separator 130 to be attached to the battery 200.
In the first aspect, the outer frame 100 is arranged to fixedly mount the plurality of batteries 200, the connector 300 is arranged to serially connect the plurality of batteries 200, specifically, the plurality of batteries 200 are fixedly mounted through the outer frame 100, the mounting is convenient, the fixing effect is good, the serial stability of the plurality of batteries 200 is ensured, the use stability and reliability are ensured, the connector 300 is adopted to serially connect, the connection is convenient, the serial effect is good, and the use safety is high; in the second aspect, the side plate 110, the end plate 120 and the splice plates are arranged on the outer frame 100 to fixedly mount the battery 200, specifically, the battery 200 is supported and fixed through the splice plates, a plurality of groups of splice plates can be spliced to realize the fixed mounting of a plurality of batteries 200, the fixing effect is good, the installation is convenient, the side plate 110 is arranged to play a role in connecting and fixing the splice plates, the unstable splicing of the splice plates is prevented, the stability is improved, the two ends of the end plate 120 are sealed, the fixing effect is good, the installation is convenient, the reliability is high, and the stability is strong; in the third aspect, the heat conducting plate 400 is arranged on the inner side of the splice plate, and the heat conducting plate 400 can conduct out the heat in the use process of the battery 200, so that the heat conducting, radiating and cooling effects are realized, and the radiating effect is good.
The frame 100 is equipped with a plurality of and ties up in the outside ribbon 140 of curb plate 110 and end plate 120, still is equipped with a plurality of ribbon 140, and ribbon 140 card is located in the recess 112 of curb plate 110, carries out spacingly to curb plate 110, end plate 120 etc. and has further increased the steadiness of frame 100, prevents that battery module 10 from shifting the circuit short circuit or breaking that causes, is favorable to reducing the potential safety hazard.
The cover plate 150 is arranged on the surface of the outer frame 100, and the cover plate 150 protects the internal installation, so that the protection effect is good and the use safety is high.
The side plate 110 includes a flat plate-shaped main body 111, a cylindrical buckling part 113 at both ends of the main body 111 in the width direction for buckling with the partition 130, and a groove 112 provided in parallel along the length direction of the main body 111 for accommodating the band 140; the ribbon 140 is clamped in the groove 112; the partition 130 is provided with a cylindrical buckling groove corresponding to the buckling part 113 of the side plate 110 for accommodating the buckling part 113; the buckling part 113 is clamped in the buckling groove, the side plate 110 is clamped in the partition plate 130 through the buckling part 113, so that the side plate 110 can be stably connected with the partition plate 130 without being connected with a plurality of screws in a threaded manner, and the device is convenient to install and good in stability.
As shown in fig. 3, the end plate 120 is formed by splicing four splice plates 121, each splice plate 121 is provided with a first connecting block 122 and a first connecting groove 123, each splice plate 121 is connected with the first connecting groove 123 through the first connecting block 122, and an adjustable first connecting component is arranged between the first connecting block 122 and the first connecting groove 123; the first connecting component comprises a plurality of first busbar buckles 124 arranged on the first connecting block 122 and first male busbar buckles 125 arranged on the first connecting groove 123 and corresponding to the first busbar buckles 124, and the first connecting block 122 is connected with the first connecting groove 123 through the first male busbar buckles 125 and the first female busbar buckles 124 in a buckled mode.
The end plate 120 is formed by splicing a plurality of splice plates 121, and is formed in a splicing mode, so that the installation is convenient, and meanwhile, the splice plates 121 are spliced, so that the production efficiency is high and the cost is low; the first connecting grooves 123 and the first connecting blocks 122 are arranged on each group of splice plates 121, specifically, the splicing is realized through the first connecting grooves 123 and the first connecting blocks 122, the splicing and the installation are convenient, the direct buckling is only needed, and the installation time and the cost are saved; an adjustable first connecting part is arranged between the first connecting block 122 and the first connecting groove 123, and the function of the adjustable first connecting part is that a plurality of groups of splice plates 121 can be adjusted in actual use to adapt to the installation and use of the battery modules 10 with different sizes, so that the universality of the invention is greatly improved, and the application range is wide. The first connecting component comprises a plurality of first busbar buckles 124 arranged on the first connecting block 122 and first male busbar buckles 125 arranged on the first connecting groove 123 and corresponding to the first busbar buckles 124, the first connecting block 122 and the first connecting groove 123 are buckled and connected through the first male busbar buckles 125 and the first female busbar buckles 124, and specifically, the first male busbar buckles 125 and the first female busbar buckles 124 are buckled, so that the connecting is convenient, the buckling effect is good, the bolt locking is not needed, the adjusting is convenient, and the installation is convenient; the split type split joint plate 121 structure is divided into four split joint plates 121, the size of the battery 200 of the battery module 10 can be adjusted at will and assembled flexibly, the problem that the structure of the prior art cannot be universal is solved, and the split type split joint plate 121 structure can meet the assembly of the battery modules 10 with different specifications through the combined standard parts in different modes, and has strong universality and wide application range.
As shown in fig. 4, the partition 130 is formed by splicing four corner plates 131, each group of corner plates 131 is provided with a second connecting block 132 and a second connecting groove 133, the corner plates 131 are spliced and connected through the second connecting blocks 132 and the second connecting grooves 133, and a second connecting component is arranged between the second connecting blocks 132 and the second connecting grooves 133 for connection; clamping parts 134 are arranged on two sides of the partition plate 130 body, and a bearing plate 135 is arranged below the partition plate 130 body; the second connecting component comprises a plurality of second busbar buckles 136 arranged on the second connecting block 132 and second male busbar buckles 137 arranged on the second connecting groove 133 and corresponding to the second busbar buckles 136, and the second connecting block 132 is connected with the second connecting groove 133 through the second male busbar buckles 137 and the second female busbar buckles 136 in a buckled manner.
The partition 130 main body 111 is formed by splicing and assembling the plurality of corner plates 131, so that the installation is convenient in actual use, the fixing effect is good in the process of isolating the assembled battery cells of the battery module 10, the isolating effect is good, and the assembly is convenient; the angle plates 131 are selected for assembly, so that a plurality of angles of the battery cells can be fixedly isolated, the use safety and the insulation effect of the battery module 10 are ensured, and the reliability is high; the angle plate 131 is provided with the second connecting block 132 and the second connecting groove 133 for splicing connection, specifically, the second connecting groove 133 and the second connecting block 132 are used for splicing, the splicing installation is convenient, the direct buckling is only needed, and the installation time and the cost are saved; an adjustable second connecting component is arranged between the second connecting block 132 and the second connecting groove 133, and the function of the adjustable second connecting component is that a plurality of groups of partition boards 130 can be adjusted in actual use so as to adapt to the installation and use of the battery modules 10 with different sizes, thereby greatly improving the universality of the invention and having wide application range; the two sides of the partition plate 130 body are provided with the clamping parts 134, the lower part of the partition plate 130 body is provided with the bearing plates 135, and particularly, the partition plates 130 can be mutually clamped and connected through the clamping parts 134, a plurality of batteries 200 are assembled to form the battery module 10 after being connected, the bearing plates 135 are arranged to fix the battery cell support, the supporting effect is improved, the fixing effect is good, and the overall stability and the use safety are improved. The second connecting component comprises a plurality of second busbar buckles 136 arranged on the second connecting block 132 and second male busbar buckles 137 arranged on the second connecting groove 133 and corresponding to the second busbar buckles 136, the second connecting block 132 and the second connecting groove 133 are connected through the second male busbar buckles 137 and the second female busbar buckles 136, and particularly, the second male busbar buckles 137 and the second female busbar buckles 136 are buckled, so that the connecting component is convenient to connect, good in buckling effect, convenient to adjust and convenient to install, the battery module is divided into four separable corner plate 131 structures, the battery 200 of the battery module 10 can be flexibly assembled through random adjustment of the size, the problem that the structure of the prior art cannot be universal is solved, the battery module 10 can be assembled through combination standard components in different modes, the universality is high, and the application range is wide.
As shown in fig. 5 to 8, the connector 300 includes an insulating flame retardant plastic frame 310, a first conductive sheet 320 and a second conductive sheet 330 which are attached to the insulating flame retardant plastic frame 310 and respectively connected to the two batteries 200; the first conductive sheet 320 and the second conductive sheet 330 are disposed in an arch bridge shape at the inner portion of the insulating flame retardant plastic frame 310, a gap is disposed between the first conductive sheet 320 and the second conductive sheet 330, and the gap is filled with a high-temperature fusing material 340, and the flame retardant and arc extinguishing cover 350 is covered outside the arch bridge structure of the first conductive sheet 320 and the second conductive sheet 330.
The connector 300 is provided with the first conductive sheet 320 and the second conductive sheet 330 which are connected through the high-temperature fusing material 340, when a short circuit fault of a certain battery 200 is suddenly raised, heat is conducted to the high-temperature fusing material 340 to cause the high-temperature fusing material 340 to fuse, so that an open circuit is formed between the batteries 200, heat is prevented from being conducted to other conductive sheets and the batteries 200, explosion or fire of the battery module 10 is prevented, and under the condition that the normal operation of the battery module 10 is ensured, the automatic high-temperature fusing is realized, so that potential safety hazards are reduced. In a second aspect, the present invention further includes a flame-retardant arc-extinguishing cover 350 covering the outer portions of the arch bridge structures of the first conductive sheet 320 and the second conductive sheet 330, and when the high-temperature fusing material 340 is fused, the flame-retardant arc-extinguishing cover 350 isolates the outside, so as to prevent sparks from splashing, and further reduce potential safety hazards. In the third aspect, the arch bridge is arranged, so that the first conductive sheet 320 and the second conductive sheet 330 are conveniently and stably connected with the high-temperature fusing material 340, thereby better playing a role in high-temperature fusing and further reducing potential safety hazards.
The first conductive sheet 320 includes a first straight portion 321 attached to the insulating flame-retardant plastic frame 310 and a first inclined portion 322 located in the flame-retardant arc-extinguishing cover 350, and the second conductive sheet 330 includes a second straight portion 331 attached to the insulating flame-retardant plastic frame 310 and a second inclined portion 332 located in the flame-retardant arc-extinguishing cover 350; the first inclined portion 322 and the second inclined portion 332 have opposite inclination directions, and form an arch bridge structure; the first straight portion 321 and the first inclined portion 322 are integrally formed, and the second straight portion 331 and the second inclined portion 332 are integrally formed. The battery 200 connector 300 has a stable overall structure, is convenient to use, and is safe and reliable. The insulating flame retardant plastic frame 310 is provided with a fuse accommodating groove 360, and the fuse accommodating groove 360 is positioned at the bottoms of the first inclined part 322 and the second inclined part 332. Through 360 unified collection fuses of fuse accommodating groove, prevent that it from dropping at will and scalding other objects, further reduce the potential safety hazard, the recycling of the fuse of being convenient for simultaneously, the fuse of collecting can reuse, and resource utilization is high.
As shown in fig. 9 to 12, the heat conducting plate 400 includes a plate body 410, at least one end of the plate body 410 is provided with a connecting plate 420, a quick connector 430 is connected to the connecting plate 420, a plurality of heat conducting channels 411 are provided in the plate body 410, a plurality of support columns 412 are provided in the heat conducting channels 411, the support columns 412 and the plate body 410 are integrally formed, at least one surface of the plate body 410 is provided with a plurality of air outlet holes 413, and a sealing gasket 440 is provided at a connection position of the connecting plate 420 and the plate body 410.
The heat conducting plate 400 is provided with the plate body 410, the heat conducting effect on the battery 200 pack is realized through the plate body 410, and the heat generated in the use of the battery 200 pack is conducted out through the plate body 410 to dissipate heat, so that the heat dissipation effect is good, and the stability is strong; a connecting plate 420 is arranged at one end or two ends of the plate body 410, a quick connector 430 is arranged on the connecting plate 420, a heat conduction channel 411 is arranged on the plate body 410 and is communicated with the connecting plate 420 and the quick connector 430, specifically, the connecting plate 420 is connected through the quick connector 430, the quick connector 430 is connected with gas to lead out the heat induced in the battery 200 package by the plate body 410, so that the heat conduction effect is realized, the heat emitted in the battery 200 package can be quickly led out, the heat conduction effect is good, and the heat conduction efficiency is high; a plurality of support columns 412 are arranged in the heat conduction channel 411, and the support columns 412 and the heat conduction plate 400 are integrally stretched and die-cast to be formed, so that machining is not needed, the integral forming enables the integral strength of the lead-in plate body 410 to be higher, and a stronger supporting effect, compression resistance and deformation resistance effects can be realized through the action of the support columns 412; the heat conduction channel 411 is divided into a plurality of oval shapes through the support columns 412, so that the support effect can be further improved, the heat conduction channel can play a role in good heat conduction in the use process, and meanwhile, the use strength can be improved; at least one surface of the plate body 410 is provided with an air outlet 413, and the guided hot air is discharged through the effect of the air outlet 413, so that the rapid air exchange and heat conduction effect is realized, the heat conduction effect is good, and the stability and the reliability are strong; in the sixth aspect, the connection position between the connection board 420 and the board body 410 is provided with a sealing gasket 440, and the sealing gasket 440 can improve the sealing effect, and plays a sealing role when the quick connector 430 is connected to the air guide for heat conduction, so as to ensure stable heat conduction. The heat conduction channel 411 can circulate cold and warm air, and the air is blown to the place where the battery 200 pack needs to be warmed through the air guide hole, so that the whole temperature control coverage of the battery 200 pack is realized, in addition, the used quick connector 430 is provided with a rubber sealing structure at the joint, and the structure is more firmly connected in a mode of increasing contact area and friction force, and has better sealing performance.
The outer surface of the body of the heat conductive plate 400 is provided with an insulating resin layer; the connection board 420 is provided with a connection channel 421, the connection channel 421 communicates the heat conduction channel 411 with the quick connector 430, and the insulating resin layer is provided to play an insulating protection role, prevent direct contact with the battery 200 pack, and has good insulating protection effect and strong reliability; particularly, the quick connector 430 is convenient to conduct air, convenient to connect, high in heat conduction effect, stable and reliable.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (8)

1. The utility model provides a high-efficient power battery module, includes the frame, sets up a plurality of group's batteries in the frame, establishes ties a plurality of group's batteries connector, its characterized in that: the outer frame comprises two side plates which are arranged in parallel, two end plates which are connected to two ends of the two side plates which are arranged in parallel, and a plurality of partition plates which are arranged between the two side plates and are parallel to the end plates, wherein the plurality of groups of batteries are separated by the partition plates; the heat conducting plate is arranged on the inner side of the partition plate and is attached to the battery; the heat conducting plate comprises a plate body, at least one end of the plate body is provided with a connecting plate, the connecting plate is connected with a quick connector, a plurality of heat conducting channels are arranged in the plate body, and at least one surface of the plate body is provided with a plurality of air outlet holes; a plurality of support columns which are integrally stretched and die-cast with the heat conducting plate are arranged in the heat conducting channel, and the heat conducting channel is divided into a plurality of elliptic shapes through the support columns; the partition plate is formed by splicing four corner plates, each group of corner plates is provided with a second connecting block and a second connecting groove, the corner plates are spliced and connected through the second connecting blocks and the second connecting grooves, and a second connecting component is arranged between the second connecting blocks and the second connecting grooves to be connected; clamping parts are arranged on two sides of the partition plate body, and a supporting plate is arranged below the partition plate body; the second connecting component comprises a plurality of second busbar buckles arranged on the second connecting block and second male row buckles arranged on the second connecting groove and corresponding to the second busbar buckles, and the second connecting block is connected with the second connecting groove through the second male row buckles and the second female row buckles in a buckled manner; the connector comprises an insulating flame-retardant plastic frame, and a first conductive sheet and a second conductive sheet which are attached to the insulating flame-retardant plastic frame and are respectively connected with two batteries; the part of the first conductive sheet and the second conductive sheet, which is positioned inside the insulating flame-retardant plastic frame, is arranged in an arch bridge shape, a gap is arranged between the first conductive sheet and the second conductive sheet, a high-temperature fusing material is filled in the gap, and the flame-retardant arc-extinguishing cover is covered outside the arch bridge structure of the first conductive sheet and the second conductive sheet.
2. The high efficiency power battery module of claim 1, wherein: the outer frame also comprises a plurality of binding belts which are tied up outside the side plates and the end plates.
3. The high-efficiency power battery module of claim 2, wherein: the side plates comprise straight plate-shaped main bodies, buckling parts of cylinders which are positioned at two ends of the width direction of the main bodies and used for being buckled with the partition plates, and grooves which are arranged in parallel along the length direction of the main bodies and used for accommodating the binding belts; the ribbon is clamped in the groove; the buckling part of the corresponding side plate of the partition plate is provided with a cylindrical buckling groove for accommodating the buckling part; the buckling part is clamped in the buckling groove.
4. The high efficiency power battery module of claim 1, wherein: the end plate is formed by splicing four splice plates, each splice plate is provided with a first connecting block and a first connecting groove, each splice plate is connected with the first connecting groove through the first connecting block, and an adjustable first connecting part is arranged between the first connecting block and the first connecting groove; the first connecting part comprises a plurality of first busbar buckles arranged on the first connecting block and first male busbar buckles arranged on the first connecting groove and corresponding to the first busbar buckles, and the first connecting block is connected with the first connecting groove through the first male busbar buckles and the first female busbar buckles in a buckled mode.
5. The high efficiency power battery module of claim 1, wherein: the first conductive sheet comprises a first straight part attached to the insulating flame-retardant plastic frame and a first inclined part positioned in the flame-retardant arc-extinguishing cover, and the second conductive sheet comprises a second straight part attached to the insulating flame-retardant plastic frame and a second inclined part positioned in the flame-retardant arc-extinguishing cover; the first inclined part and the second inclined part are opposite in inclination direction, and form an arch bridge structure; the first straight part and the first inclined part are integrally formed, and the second straight part and the second inclined part are integrally formed; the insulation flame-retardant plastic frame is provided with a fuse accommodating groove, and the fuse accommodating groove is positioned at the bottoms of the first inclined part and the second inclined part.
6. The high efficiency power battery module of claim 1, wherein: the heat conduction channel is internally provided with a plurality of support columns, the support columns and the plate body are integrally formed, and sealing gaskets are arranged at the connection positions of the connecting plates and the plate body.
7. The high efficiency power battery module of claim 1, wherein: an insulating resin layer is arranged on the outer surface of the heat conducting plate body; the connecting plate is provided with a connecting channel, and the connecting channel is used for communicating the heat conduction channel with the quick connector.
8. The high efficiency power battery module of claim 1, wherein: the surface of the outer frame is provided with a cover plate.
CN201810955959.9A 2018-08-21 2018-08-21 High-efficiency power battery module Active CN108923007B (en)

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