CN102916146A - Box battery pack with insulation safety structure - Google Patents
Box battery pack with insulation safety structure Download PDFInfo
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- CN102916146A CN102916146A CN2012104139156A CN201210413915A CN102916146A CN 102916146 A CN102916146 A CN 102916146A CN 2012104139156 A CN2012104139156 A CN 2012104139156A CN 201210413915 A CN201210413915 A CN 201210413915A CN 102916146 A CN102916146 A CN 102916146A
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- battery module
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- 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
Abstract
The invention relates to a secondary power supply, and particularly relates to a box battery pack with an insulation safety structure. The box battery pack is structurally characterized by comprising a plurality of vertically and horizontally arranged battery modules distributed in a box, and each battery module comprises a plurality of single batteries, an insulating base and an insulating top cover; and the box battery pack also comprises a fixed L plate and a box, wherein the fixed L plate is used for fixedly installing and connecting the plurality of horizontally-arranged battery modules. The box battery pack disclosed by the invention has the advantages that through taking the battery modules as component units, carrying out overall insulated wrapping on the battery modules and carrying out insulated isolation among single batteries in the modules, the connection and disconnection operations between the single batteries in the modules and between the modules are effectively distinguished, so that the potential safety hazards in the aspect of operation are reduced, and a modularized operation can be performed both in the aspects of application and maintenance, therefore, the box battery pack is simple and convenient to operate. In addition, because a radiating channel is left due to incomplete isolation, the temperature difference between the single batteries is effectively reduced, thereby prolonging the service life of the batteries and ensuring the application performance of the batteries.
Description
Technical field
The present invention relates to a kind of secondary power supply, particularly a kind of box type battery group with insulation safety structure.
Background technology
In the prior art, face the problems such as environmental pollution is serious, petroleum resources are exhausted, climate warming, the research and development of energy storage technology more and more is subject to the attention of the departments such as various countries' energy, traffic, electric power.Battery directly affects the performance of energy-storage system as the critical component of energy storage.Because the required number of battery cells of energy-storage system is larger, usually adopt several cells to form battery module, again by the large-scale energy-storage system of being combined to form of a plurality of battery modules.Be subject to the restriction in space, battery in the energy-storage system all needs close-packed arrays to connect, intensive arranged together of its electrode, therefore when carrying out battery installation connection, misconnection appears easily, and owing to distance between the battery electrode is too near, short circuit appears during operation easily, when one of them electrode of operation, also touch easily the battery electrode that closes on, cause the human electric shock; In addition, the connection between all electrodes and the electrode is all exposed outside, therefore causes above-mentioned battery module to have security hidden trouble.
In addition, when compact arranged battery cell discharges and recharges with different multiplying, battery can be given birth to hot speed with difference and be produced amount of heat, adds that the accumulation of time and the impact in space can produce inhomogeneous heat accumulation, thereby causes the complicated and changeable of battery pack operating ambient temperature.Because the intensive layout of a large amount of batteries, zone line will inevitably be assembled more heat transfer, and the edge is less, causes the larger temperature difference of cell existence between battery pack, the inconsistency of internal resistance between the aggravation battery, capacity etc.If long time integration can cause the part over-charging of battery and cross and put, and then affect life-span and the performance of battery, and cause potential safety hazard.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and propose a kind of safe, box type battery group with insulation safety structure that heat dispersion is good.
The present invention is achieved through the following channels:
Box type battery group with insulation safety structure, its structural feature are, include a plurality of battery modules of the vertical and horizontal arrangement that is distributed in the casing, and the side of casing is distributed with a plurality of ventilation holes; Each battery module includes a plurality of cells, insulator foot and insulating top cover; The insulator foot top is provided with vertical side by side the groove identical with cell quantity, and each groove size is all adaptive with cell, and a plurality of cells are seated in this plurality of grooves; Insulating top cover includes insulation frame and insulation cover plate, be distributed with vertical side by side the caulking groove identical with cell quantity on the insulation frame, this caulking groove is corresponding with groove on the insulator foot, the insulation frame can be embedded on these a plurality of cells, and upwards expose electrode, the insulation cover plate lid overlays on the insulation frame, and is connected with the insulation frame;
Also include fixed L plate and a casing, the fixed L plate is positioned on the outermost surface of transversely arranged battery module, on the width of the insulator foot of each battery module and insulation frame and the installing hole that connects before and after being provided with of fixed L plate, and be applied in this installing hole by a kind of pull bar, transversely arranged battery module is linked together.
Like this, the box type battery group just is comprised of a plurality of battery modules unit, each battery module is provided with insulator foot and insulating top cover, so that battery module can become a unitary construction, this complete modular integral body is so that described battery module no longer exposes in the air, but adopt on the whole insulator foot and insulating top cover to coat, and all arranging and the suitable groove of cell sectional dimension or caulking groove on insulator foot and the insulation frame, all has insulating barrier between the adjacent slot, insulation division board between the caulking groove on the insulation frame has been kept apart the electrode between the cell, therefore when operation, distinguish easily, be difficult for makeing mistakes, eliminate potential safety hazard, had good fail safe; As a whole battery module carries out the wiring operation between a plurality of modules in addition, and use or operation maintenance aspect can carry out modular operation, therefore operation is more simple and convenient.
In addition, no matter be between the adjacent battery modules, or all undertaken insulating by the insulating barrier between groove and the groove with adjacent cell and isolated in the upper and lower of each cell in the battery module, simultaneously at the middle part that generates heat easily, stay between adjacent two batteries ventilation cell every, this ventilation cell is every can be used as air-cooled passage, when operation, take away the heat of battery surface, be conducive to the heat radiation of battery, reduced the temperature difference between the cell, prolong the useful life of battery, guaranteed the serviceability of battery, improved the safety in utilization of battery module.
The present invention can further be specially:
Also include the first dividing plate in the battery module, it stands on insulation frame top and vertical with the length direction of caulking groove, between the positive terminal and negative terminal of cell.
Each cell all has the electrode column of anodal and negative pole, and in battery module, distance is very near between the positive and negative terminals, touches simultaneously easily in operation both positive and negative polarity, so that battery short circuit causes the accident; Therefore, can further in battery module, by the first dividing plate the positive and negative polarities of battery be kept apart, guarantee the insulation safety isolation between the battery positive and negative polarities.
Also include second partition in the battery module, the frame top that it stands on the insulation frame is positioned at the positive terminal of cell or a side of negative terminal.
In the box type battery group, owing to need to be connected between battery module and the battery module, yet this connection often is serial connection, it can only be the connection of positive terminal or negative terminal one side, another side there is no connection, but connection is very many in wiring because between the battery, a connectionless side is often caused connection error by misconnection easily, battery short circuit, therefore need to be by second partition with the connectionless side partition that insulate, stop misconnection and accident, improved the security performance of battery module.
The first dividing plate and second partition end are connected to form one, and are " L " type baffle plate configuration.Further, should be integrated structure with the insulation frame by " L " type dividing plate, also can be that split is independent, adopts binding agent or securing member to connect.
The present invention can also further be specially:
The below of the insulation cover plate of battery module is the fluting of " protruding " font structure, two shoulders of " protruding " font structure fluting respectively are distributed with a plurality of rectangle ventilation holes, the dual-side lower end of " protruding " font structure is provided with the convex inclination angle, and this convex inclination angle and described insulation frame are connected.
The Lower Half of insulation cover plate is used for connecting the insulation frame, the first half is used to the connector between the battery that assembly space and heat-dissipating space are provided, described rectangle ventilation hole can provide the cooling duct for the heating of battery connecting piece, thereby for battery module provides more fully radiating condition, further improve its fail safe and heat dispersion.
Each a plurality of rectangle ventilation hole that distribute of two shoulders of described " protruding " font structure fluting are symmetrical structure.
The heat dissipation channel that symmetrical rectangle ventilation hole connects about forming via the heat-dissipating space of the insulation cover plate first half is taken away the heat of the connector on the battery.
The rectangle ventilation hole quantity that distributes on each shoulder that is to say that with the battery cell that battery module has the rectangle ventilation hole that each battery cell can both be corresponding a pair of is as its heat dissipation channel.
Because battery module also needs to be connected with other battery modules, therefore in order not affect the connection between the battery module, need to reduce by a rectangle ventilation hole according to the position that connects, this position becomes a breach of insulation cover plate, for the ease of production and the versatility of insulation cover plate, therefore:
The fillet of the wherein shoulder in two shoulders of described " protruding " font structure fluting is the side direction gap opened, and other parts then are distributed with the rectangle ventilation hole.
Concrete, can be that two kinds of common versions are arranged: a kind of be at the left scapuloanterior (LScA) angle of fluting gap opened to be set, another kind is corresponding and front a kind of mode then, at the right scapuloanterior angle gap opened is set, this structure of two kinds can so that insulation cover plate provides a gap opened at any one fillet of battery module, be convenient to the connection between the battery module by rotation.
The width of a gap opened is consistent with a rectangle ventilation hole width, like this, rectangle ventilation hole on another fillet corresponding with this gap opened just can carry out with it corresponding, forms heat dissipation channel, and the rectangle ventilation hole of other parts still can left shoulder corresponding one by one with right shoulder.
The present invention can also further be specially:
Described insulator foot and insulating top cover all adopt the ABS material to make.
The ABS material refers to Acrylonitrile Butadiene Styrene, acrylonitrile-butadiene-styrene copolymer.The existing good insulating properties of ABS material has again certain hardness, can satisfy holding of heavier battery cell.
The lower bottom part of insulator foot has vertical, the horizontal and oblique reinforcement of complex root.
The reinforcement that complex root is vertical, horizontal and oblique in weight reduction, makes insulator foot have higher intensity so that insulator foot presents a kind of multi-groove structure like this, can make insulator foot that battery is had enough supporting roles.
In sum, the invention provides a kind of box type battery group with insulation safety structure, it is take the battery module of insulation safety type as component units, described battery module has carried out the insulation isolation between the cell in whole insulating wrapped and the module, effectively distinguished between the interior cell of module and the connection between the module and disassembling section, reduced operational potential safety hazard, can carry out modular operation aspect use or the operation maintenance simultaneously, therefore operation is more simple and convenient.In addition, because above-mentioned insulation isolation has been adopted incomplete isolation with the structure of low groove upper embedded groove, only isolated operation part, cell mid portion for easy heating has stayed heat dissipation channel because not exclusively isolating, effectively reduced the temperature difference between the cell, prolong the useful life of battery, guaranteed the serviceability of battery, improved the safety in utilization of battery module.
Description of drawings
Fig. 1 is the structural representation with box type battery group of insulation safety structure of the present invention;
Fig. 2 is the structural representation of battery cell of the present invention;
Fig. 3 is the structural representation of battery module of the present invention;
Fig. 4 is insulator foot plan structure schematic diagram in the battery module of the present invention;
Fig. 5 is that insulator foot is looked up structural representation in the battery module of the present invention;
Fig. 6 is the plan structure schematic diagram of insulation frame in the battery module of the present invention;
Fig. 7 be in the battery module of the present invention the insulation frame look up structural representation;
Fig. 8 be the different setting parties of L-type dividing plate of the present invention to the plan structure schematic diagram of insulation frame;
Fig. 9 is the structural representation of insulation cover plate in the battery module of the present invention;
Figure 10 is the structural representation of insulation cover plate one shoulder of the present invention when being provided with gap opened;
Figure 11 is the structural representation that is made of insulating top cover insulation frame and insulation cover plate of the present invention;
Figure 12 is the structural representation of fixed L plate of the present invention;
Figure 13 is the structural representation of the transversely arranged group of battery modules of row of the present invention;
Figure 14 is the front side structure schematic diagram of casing of the present invention;
Figure 15 is the rear structure schematic diagram of casing of the present invention.
Below in conjunction with accompanying drawing the present invention is described further.
Embodiment
Most preferred embodiment:
With reference to accompanying drawing 1, have the box type battery group of insulation safety structure, include casing 5 and be distributed in the battery module A that two in the casing 5 horizontal eight indulged, and fixed L plate 6.
With reference to accompanying drawing 3, battery module is a kind of box type battery group with insulation safety structure, includes 1, one insulator foot 2 of three cells and an insulating top cover, and insulating top cover includes insulation frame 3 and insulation cover plate 4.The below describes the concrete structure of insulator foot 2 and insulating top cover one by one in detail.
On the basis of accompanying drawing 3 with reference to accompanying drawing 4 and accompanying drawing 5, insulator foot 2 is provided with 3 groove 21(side by side and sees accompanying drawing 4), the length of groove and width and cell (concrete structure of cell is seen accompanying drawing 2) part coupling, this groove 21 plays the effect to cell 1 location, the reinforcement 22(that the bottom of insulator foot 2 is provided with different directions sees Fig. 5), in weight reduction, have higher intensity, battery is played enough supporting roles.
On the basis of accompanying drawing 3 and accompanying drawing 2 with reference to accompanying drawing 6 and accompanying drawing 7, insulation frame 3 is provided with vertical 3 caulking grooves 31 side by side, this caulking groove 31 is corresponding with the groove on the insulator foot 2, be used for embedding cell, length and width and cell 1 part coupling, play the effect to cell 1 location, the pole 11 of cell is exposed to the top of insulation frame 3.Be provided with L-type dividing plate 32 in the middle of above the insulation frame 3, the transverse slat of L type dividing plate 32 is vertical with the length direction of caulking groove 31, which is provided with 3 open slots corresponding with caulking groove 31, corresponding caulking groove 31 directions of openend, the upper surface of cell just can not hindered because of the L-type dividing plate like this; L type dividing plate 32 stringer boards place insulation rear, frame 3 left side, as shown in Figure 6; Also can as required L type dividing plate 32 stringer boards be placed insulation the place ahead, frame 3 left side, as shown in Figure 8.Perhaps place as required insulation frame the place ahead, 3 right side or rear.
With reference to accompanying drawing 9, the below of insulation cover plate 4 is the fluting 41 of " protruding " font structure, two shoulders of " protruding " font structure fluting respectively are distributed with 3 rectangle ventilation holes 42, and left-right symmetric, correspond to one by one on 3 cells, like this, the heat dissipation channel that symmetrical rectangle ventilation hole 42 connects about forming via the heat-dissipating space of the insulation cover plate first half is taken away the heat of the connector on the battery.Lower end, limit, the left and right sides is provided with convex inclination angle 43, and the inboard is provided with 4 kick (not shown)s, plays the effect of location when cooperating with insulation frame 3.
Consider being connected of battery module and other modules, therefore, insulation cover plate 4 can also be as shown in Figure 10, and the fillet of the wherein shoulder in two shoulders of described " protruding " font structure fluting is side direction gap opened 44, and the rectangle ventilation hole of other parts is constant.The width of gap opened is consistent with a rectangle ventilation hole width, like this, rectangle ventilation hole on another fillet corresponding with this gap opened just can carry out with it corresponding, forms heat dissipation channel, and the rectangle ventilation hole of other parts still can left shoulder corresponding one by one with right shoulder.
With reference to accompanying drawing 11, insulation cover plate 4 lid is overlayed on the insulation frame 3, and the downside that is buckled in insulation frame 3 by convex inclination angle 43 is along upper, and cooperates with the kick of inboard and to realize being fixedly connected with of the two, thus the composition insulating top cover.
As shown in Figure 1, described insulator foot and insulating top cover all adopt the ABS material to make.The existing good insulating properties of ABS material has again certain hardness, can satisfy holding of heavier battery cell.
With reference to accompanying drawing 12 and accompanying drawing 13, fixed L plate 6 downsides have flanging, the knuckle camber is 90 °, being provided with 4-8 corresponding aperture around on insulator foot 2, insulation frame 3 and the fixed L plate 6 vertical flangings is the installing hole 7 of 6-10 millimeter, by installing hole 7 that insulator foot 2, insulation frame 3 is fixing with fixed L plate 6 with the axial vertical pull bar of cell.Fixed L plate level flanging is provided with 4 circular holes, links to each other by the base of bolt with casing 5.
Take the frame of insulation shown in the accompanying drawing 6 as K1, the frame of insulation shown in the accompanying drawing 8 is K2, and the insulation frame that closes of the transversely arranged group of battery modules shown in the accompanying drawing 13 is K1, the combination of K2 loop configuration from left to right so.In the battery pack in accompanying drawing 1, only just adopt as shown in figure 10 insulation cover plate at outermost battery module.
The casing of battery case is the packaging structure in the whole battery pack outside, is the front view of casing as shown in figure 14, and as shown in Figure 14, the front side of casing is provided with rectangle air inlet 8, and this air inlet is in the lower end of casing front side.Be the rearview of casing as shown in figure 15, as shown in Figure 15, the rear side of casing is provided with fan outlet 9, the size of air outlet is corresponding with the air inlet of leading flank with the position, and other wiring hole and the data wire hole of being provided with of casing rear side fan, this wiring hole be used for picking out battery pack in the battery case always just and total negative terminal, the data wire hole is used for picking out battery image data line.
It is same as the prior art that the present invention does not state part.
Claims (8)
1. have the box type battery group of insulation safety structure, it is characterized in that, include a plurality of battery modules of the vertical and horizontal arrangement that is distributed in the casing, the side of casing is distributed with a plurality of ventilation holes; Each battery module includes a plurality of cells, insulator foot and insulating top cover; The insulator foot top is provided with vertical side by side the groove identical with cell quantity, and each groove size is all adaptive with cell, and a plurality of cells are seated in this plurality of grooves; Insulating top cover includes insulation frame and insulation cover plate, be distributed with vertical side by side the caulking groove identical with cell quantity on the insulation frame, this caulking groove is corresponding with groove on the insulator foot, the insulation frame can be embedded on these a plurality of cells, and upwards expose electrode, the insulation cover plate lid overlays on the insulation frame, and is connected with the insulation frame;
Also include fixed L plate and a casing, the fixed L plate is positioned on the outermost surface of transversely arranged battery module, on the width of the insulator foot of each battery module and insulation frame and the installing hole that connects before and after being provided with of fixed L plate, and be applied in this installing hole by a kind of pull bar, transversely arranged battery module is linked together.
2. the box type battery group with insulation safety structure according to claim 1 is characterized in that battery module also includes the first dividing plate, and it stands on insulation frame top and vertical with the length direction of caulking groove, between the positive terminal and negative terminal of cell.
3. the box type battery group with insulation safety structure according to claim 1 is characterized in that battery module also includes second partition, and the frame top that it stands on the insulation frame is positioned at the positive terminal of cell or a side of negative terminal.
4. the box type battery group with insulation safety structure according to claim 1, it is characterized in that, the below of the insulation cover plate of battery module is the fluting of " protruding " font structure, two shoulders of " protruding " font structure fluting respectively are distributed with a plurality of rectangle ventilation holes, the dual-side lower end of " protruding " font structure is provided with the convex inclination angle, and this convex inclination angle and described insulation frame are connected.
5. the box type battery group with insulation safety structure according to claim 4 is characterized in that, each a plurality of rectangle ventilation hole that distribute of two shoulders of described " protruding " font structure fluting are symmetrical structure.
6. the box type battery group with insulation safety structure according to claim 4, it is characterized in that, the fillet of the wherein shoulder in two shoulders of described " protruding " font structure fluting is the side direction gap opened, and other parts then are distributed with the rectangle ventilation hole.
7. the box type battery group with insulation safety structure according to claim 1 is characterized in that, described insulator foot and insulating top cover all adopt the ABS material to make.
8. the box type battery group with insulation safety structure according to claim 1 is characterized in that, the lower bottom part of insulator foot has vertical, the horizontal and oblique reinforcement of complex root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210413915.6A CN102916146B (en) | 2012-10-24 | 2012-10-24 | Box battery pack with insulation safety structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210413915.6A CN102916146B (en) | 2012-10-24 | 2012-10-24 | Box battery pack with insulation safety structure |
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| CN102916146A true CN102916146A (en) | 2013-02-06 |
| CN102916146B CN102916146B (en) | 2014-12-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104201434A (en) * | 2014-08-29 | 2014-12-10 | 合肥国轩高科动力能源股份公司 | Heat-dissipation type battery pack of electric vehicle |
| CN106299166A (en) * | 2016-09-20 | 2017-01-04 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN108448026A (en) * | 2018-06-01 | 2018-08-24 | 辽宁科技大学 | A kind of novel battery group insulating barrier structure |
| CN109560215A (en) * | 2017-09-25 | 2019-04-02 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN110112343A (en) * | 2019-04-25 | 2019-08-09 | 上海空间电源研究所 | A kind of spacecraft angular battery group modular construction |
| CN112310525A (en) * | 2019-08-14 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Battery box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104201434A (en) * | 2014-08-29 | 2014-12-10 | 合肥国轩高科动力能源股份公司 | Heat-dissipation type battery pack of electric vehicle |
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| CN110112343A (en) * | 2019-04-25 | 2019-08-09 | 上海空间电源研究所 | A kind of spacecraft angular battery group modular construction |
| CN112310525A (en) * | 2019-08-14 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Battery box |
| US11909059B2 (en) | 2019-08-14 | 2024-02-20 | Contemporary Amperex Technology Co., Limited | Battery box |
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| CN102916146B (en) | 2014-12-31 |
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