CN202721207U - Totally-enclosed battery box - Google Patents

Totally-enclosed battery box Download PDF

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Publication number
CN202721207U
CN202721207U CN2012201302819U CN201220130281U CN202721207U CN 202721207 U CN202721207 U CN 202721207U CN 2012201302819 U CN2012201302819 U CN 2012201302819U CN 201220130281 U CN201220130281 U CN 201220130281U CN 202721207 U CN202721207 U CN 202721207U
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CN
China
Prior art keywords
totally
box
frame
battery case
cover plate
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Expired - Lifetime
Application number
CN2012201302819U
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Chinese (zh)
Inventor
覃美莲
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Yinhe Chengtai Shandong Technology Co ltd
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Individual
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Priority to CN2012201302819U priority Critical patent/CN202721207U/en
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    • 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

Abstract

The utility model discloses a totally-enclosed battery box, which has high safety and a good radiating effect and is explosion-proof and flame-retardant. The battery box comprises a box body, a battery pack and a battery management module (5), wherein the box body comprises a box frame (2), a left cover plate (3) and a right cover plate (4); the battery pack is formed by connecting a plurality of cylindrical monomer batteries (1) according to a certain rule through current-conducting plates (61, 62); heat-conducting silica gel sheets (9) are covered on the left and right faces of the battery pack; the left cover plate (3) and the right cover plate (4) are compressed against the heat-conducting silica gel sheets (9), and are fixedly connected with the left and right faces of the box frame (2) respectively; and the inner walls of the box frame (2), the left cover plate (3) and the right cover plate (4) are plated with high-heat-conductivity ceramic materials. The totally-enclosed battery box is suitable for supplying power supplies to electric automobiles.

Description

The totally-enclosed type battery case
Technical field
The utility model relates to field of batteries, particularly relates to a kind of for the battery case on the electric automobile.
Background technology
The advantages such as lithium ion battery has that specific capacity is large, operating voltage is high, has extended cycle life, volume is little, lightweight have become the first-selection of electric automobile at present.Electrokinetic cell as electric car power supply requires to have larger capacity and voltage, and the voltage of the lithium ion battery of monomer and capacity are all very little, therefore, generally need a lot of cells is installed in a plurality of battery cases at electric automobile, form the requirement that battery pack reaches car power source by series and parallel.This high efficiency and heat radiation ability to battery has proposed higher requirement: the lithium-ion-power cell group can produce a large amount of heat in heavy-current discharge and charging process, long-term heat is concentrated and not only can life-span and the stable operation of battery be impacted, can catch fire even explode when serious, directly threaten driver and conductor's safety.
The radiating mode that common battery case adopts has air-cooled and liquid cooling: ventilated machine is with low pressure (12/24V) powered battery, with electronic fan to the battery pack cooling of bleeding.Use electronic fan can increase the supply load of A-battery, also can produce noise.The more important thing is that the combustion explosion of battery needs air, and the air cooling way of above-mentioned battery case inner air and outer air circulation provides necessary condition to the combustion explosion of battery pack.The liquid cooling mode must could be cooled off battery pack by heat exchange facilities such as water jacket water tanks, the complex structure of battery pack, volume weight is increased, and have the possibility of leakage, and maintenance is complicated.
The utility model patent of China Patent Publication No. CN201804918U and CN201804919U discloses respectively " closed power battery pack module " of built-in Soft Roll rectangular cell unit and built-in metal hard shell cylindrical battery unit, battery case inside connects each battery unit/monomer with conductive plate, effectively derive the heat of cell inside, again by covering the insulating heat-conductive sheet on the conductive plate, further by the battery case cover plate heat is shed, heat-conducting area is large, good heat dissipation effect, more effectively be, it adopts airtight battery case, completely cut off battery case inner with the contacting of air, thereby play fire-retardantly, explosion-proof purpose.But in actual use, because road conditions are complicated during electric automobile during traveling, battery case can rock because of jolting of automobile, and there is the hidden danger of safety in the battery case of said structure: because battery case cover plate and conductive plate generally are hard material, rock the effect that is easy in the process insulating heat-conductive sheet is galled and does not have insulation at battery case, will certainly increase thermal resistance and increase insulating heat-conductive sheet thickness, affect the radiating effect of battery case.
Summary of the invention
Problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, and a kind of safe, good heat dissipation effect, explosion-proof, fire-retardant totally-enclosed type battery case are provided.
The technical solution of the utility model is: the utility model comprises casing, battery pack, battery management module, described casing comprises box-frame, left cover and right cover plate, described battery pack comprises some column type cells, described cell both positive and negative polarity is horizontally placed in the described box-frame and by conductive plate by left and right directions and connects into described battery pack with certain rule, the conductive plate of upper right quarter and lower left quarter by described box-frame front end pass draw battery pack just/negative pole, be electrically connected with the battery case outside line through the wiring latch segment again after fixing by insulation board between just described/negative pole and the described box-frame; Two sides, the described battery pack left and right sides covers heat-conducting silica gel sheet, and described left cover compresses respectively described heat-conducting silica gel sheet with described right cover plate and is fixedly connected with two sides, the described box-frame left and right sides; The inwall of described box-frame, described left cover and described right cover plate all is coated with the extraordinary thermal conductive ceramic material of insulation property.
Described high heat-conducting ceramic material selection aluminium nitride or beryllium oxide, thickness of coating are 0.2~0.5mm.
Described box-frame, described left cover and described right cover plate aluminium alloy material are made.
Described conductive plate selects the aluminium alloy plate of nickel plating to make.
Described insulation board and described wiring latch segment select the match Steel material to make.
Described battery management module is arranged at described box-frame front end and is electrically connected with described battery pack by the wire that passes described box-frame.
Junction with each cell on the described conductive plate is provided with protruding joint face to cell.
Be connected with some pull bars between described left cover and the described right cover plate.
Described battery case bottom is provided with two vertical bearings, and the spacing between two described bearings can be passed the yoke of fork truck at least.
Described bearing selects cold-rolled steel sheet to make.
The beneficial effects of the utility model are: the utility model with battery apparatus in airtight casing, the inwall of the box-frame of casing, left cover and right cover plate all is coated with the highly heat-conductive carbon/ceramic ceramic material, such as aluminium nitride or beryllium oxide etc., it has higher conductive coefficient (can reach about 180~200W/MK), and have insulation, the performance such as acidproof/caustic corrosion, wear-resisting, can make the utility model the safety issue of battery case in use can not occur because of the wearing and tearing of heat-conducting silica gel sheet.On the other hand, insulating effect because of ceramic plated layer, only requiring in the utility model that heat-conducting silica gel sheet can play gets final product the effect of left and right cover plate and conductive plate close contact and heat conduction, therefore only need the thickness about 1mm to meet the demands, further reduced the thermal resistance of heat conducting element, made the heat dispersion of battery case better.Junction with each cell on the utility model conductive plate is provided with protruding joint face to cell, makes conductive plate and the cell can close contact and effectively derive the cell internal heat.Conductive plate of the present utility model is made of the aluminum alloy plate materials of nickel plating, and it is low to compare the copper coin cost, alleviate battery case weight, and non-oxidizability is better; The utility model box-frame and left and right sides cover plate all adopt aluminum alloy materials, and be lightweight, perfect heat-dissipating.In sum, battery case of the present utility model has waterproof and dustproof, the anti-function that connects the conductive plate oxidation, the more important thing is, can completely cut off battery case inner with the contacting of extraneous air, can play effectively fire-retardant, explosion-proof effect.
Description of drawings
Fig. 1 is structure diagram of the present utility model;
Fig. 2 is the utility model partial sectional view;
Fig. 3 is the enlarged diagram of I section among Fig. 2;
Fig. 4 is the tie point schematic diagram of battery management system and battery pack;
Fig. 5 is the utility model installation connection diagram in use.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made concrete detailed description.
Such as Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises casing, battery pack, battery management module 5.Casing comprises box-frame 2, left cover 3 and the right cover plate 4 that is assembled into by upper ledge 21 and lower frame 22.
Battery pack comprises some cylinder cells 1, cell 1 both positive and negative polarity is horizontally placed in the box-frame 2 and by conductive plate 61 and conductive plate 62 by left and right directions and connects into described battery pack with certain rule, adopting parameter is the cylinder cell of 3.2V/70AH, can connect to form the battery pack of 350~700AH/28.8~38.4V with 5~10 modes of also/9~12 going here and there, (being the battery pack of the 630AH/28.8V of 9 and 9 strings as shown in the utility model Fig. 1), junction with each cell 1 on the conductive plate is provided with protruding joint face to cell 1, and conductive plate 61 and conductive plate 62 select the aluminium sheet of nickel plating to make.The conductive plate 61 of upper right quarter and lower left quarter by box-frame 2 front ends pass draw battery pack just/negative pole, just/and being electrically connected with the battery case outside line through wiring latch segment 8 again after fixing by insulation board 7 between negative pole and the box-frame 2, insulation board 8 and wiring latch segment 9 are selected and are matched the Steel material making; Two sides, the battery pack left and right sides covers heat-conducting silica gel sheet 9, and left cover 3 compresses respectively heat-conducting silica gel sheet 9 with right cover plate 4 and is fixedly connected with two sides, box-frame 2 left and right sides; Box-frame 2, left cover 3 and right cover plate 4 aluminium alloy materials are made, the inwall of box-frame 2, left cover 3 and right cover plate 4 all is coated with highly heat-conductive carbon/ceramic ceramic material (showing as shown in Figure 3 left cover 3 internal wall ceramic coating 31), the highly heat-conductive carbon/ceramic ceramic material is optional with aluminium nitride or beryllium oxide, and thickness of coating is 0.2~0.5mm.For battery case firm, be connected with some pull bars 10 between left cover 3 and the right cover plate 4 and (comprise the different of cell 1 number according to battery pack in the battery case, the quantity of pull bar 10 has difference, and the quantity of pull bar 10 is 12 as shown in the utility model Fig. 1).
Battery management module 5 is arranged at box-frame 2 front ends and is electrically connected with battery pack by the wire that passes box-frame 2.As shown in Figure 4, battery management module 5 is passed by box-frame 2 front ends with the wire that is connected between the battery pack, connecting wire is resistant to elevated temperatures Teflon insulation wire rod, except head and the tail two Battery packs of every case, be connected with every Battery pack with the shortest distance respectively, battery management module 5 and head and the tail are connected the middle part that wire then need be connected to conductive plate 61 between two Battery packs, to eliminate the pressure drop affects of conductive plate 61 when large electric current flows through.
Battery case bottom is provided with the yoke that spacing between 11, two bearings 11 of two vertical bearings can be passed fork truck at least; Bearing 11 selects cold-rolled steel sheet to make.
Be illustrated in figure 5 as the utility model and be applied in a kind of installation connection diagram on the electric automobile, with wire harness 13 a plurality of battery cases are in series to connect and reach the needed voltage request of electric automobile, as 12 casees batteries of connecting can reach voltage request (the connection schematic diagram of four casees batteries wherein shown in the figure of electric automobile 346V, all the other are distributed in the diverse location in the electric motor car for eight the casees, and are not shown).Because of vertical battery case short transverse size large (height of battery case and depth dimensions can carry out the adaptive type design according to different vehicles), available connecting plate 12 connects adjacent two battery cases, makes it better at the entrucking rear stability in this embodiment.The bearing 11 that vertically arranges can be used as guide rail to make things convenient for entrucking.

Claims (10)

1. totally-enclosed type battery case, comprise casing, battery pack, battery management module (5), it is characterized in that: described casing comprises box-frame (2), left cover (3) and right cover plate (4), described battery pack comprises some cylinder cells (1), described cell (1) both positive and negative polarity is horizontally placed in the described box-frame (2) and by conductive plate (61 by left and right directions, 62) connect into described battery pack with certain rule, the conductive plate of upper right quarter and lower left quarter (61) by described box-frame (2) front end pass draw battery pack just/negative pole, be electrically connected with the battery case outside line through wiring latch segment (8) again after fixing by insulation board (7) between just described/negative pole and the described box-frame (2); Two sides, the described battery pack left and right sides covers heat-conducting silica gel sheet (9), and described left cover (3) compresses respectively described heat-conducting silica gel sheet (9) with described right cover plate (4) and is fixedly connected with described box-frame (2) two sides, the left and right sides; The inwall of described box-frame (2), described left cover (3) and described right cover plate (4) all is coated with the highly heat-conductive carbon/ceramic ceramic material.
2. totally-enclosed type battery case according to claim 1, it is characterized in that: described high heat-conducting ceramic material selection aluminium nitride or beryllium oxide, thickness of coating are 0.2~0.5mm.
3. totally-enclosed type battery case according to claim 1 is characterized in that: described box-frame (2), described left cover (3) and the making of described right cover plate (4) aluminium alloy material.
4. totally-enclosed type battery case according to claim 1 is characterized in that: described conductive plate (61,62) selects the aluminium sheet of nickel plating to make.
5. totally-enclosed type battery case according to claim 1 is characterized in that: described insulation board (8) and described wiring latch segment (9) select the match Steel material to make.
6. according to claim 1 to 5 described arbitrary described totally-enclosed type battery cases, it is characterized in that: described battery management module (5) is arranged at described box-frame (2) front end and is electrically connected with described battery pack by the wire that passes described box-frame (2).
7. arbitrary described totally-enclosed type battery case according to claim 6, it is characterized in that: the junction with each cell (1) on the described conductive plate is provided with protruding joint face to cell (1).
8. totally-enclosed type battery case according to claim 7 is characterized in that: be connected with some pull bars (10) between described left cover (3) and the described right cover plate (4).
9. totally-enclosed type battery case according to claim 8 is characterized in that: described battery case bottom is provided with two vertical bearings (11), and the spacing between two described bearings (11) can be passed the yoke of fork truck at least.
10. totally-enclosed type battery case according to claim 9 is characterized in that: described bearing (11) selects cold-rolled steel sheet to make.
CN2012201302819U 2012-03-30 2012-03-30 Totally-enclosed battery box Expired - Lifetime CN202721207U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201302819U CN202721207U (en) 2012-03-30 2012-03-30 Totally-enclosed battery box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201302819U CN202721207U (en) 2012-03-30 2012-03-30 Totally-enclosed battery box

Publications (1)

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CN202721207U true CN202721207U (en) 2013-02-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102651463A (en) * 2012-03-30 2012-08-29 覃美莲 Totally-enclosed battery box
US11233363B2 (en) 2019-09-23 2022-01-25 Ford Global Technologies, Llc Aluminum alloy header plate with ceramic coating for battery assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102651463A (en) * 2012-03-30 2012-08-29 覃美莲 Totally-enclosed battery box
US11233363B2 (en) 2019-09-23 2022-01-25 Ford Global Technologies, Llc Aluminum alloy header plate with ceramic coating for battery assembly

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XIANGTAN YINHE ENERGY CO., LTD.

Free format text: FORMER OWNER: QIN MEILIAN

Effective date: 20150105

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 518040 SHENZHEN, GUANGDONG PROVINCE TO: 411100 XIANGTAN, HUNAN PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20150105

Address after: 411100 PTA library, South District, 38 academy road, Gaoxin District, Xiangtan, Hunan

Patentee after: Xiangtan Yinhe New Energy Co.,Ltd.

Address before: 518040 Guangdong city of Shenzhen province Futian District incense Road No. 2 East Garden two building 5 28B

Patentee before: Qin Meilian

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210924

Address after: 266071 floor 3, building 5, No. 162, Qiyunshan Second Road, aoshanwei street, Jimo District, Qingdao City, Shandong Province

Patentee after: Yinhe Chengtai (Shandong) Technology Co.,Ltd.

Address before: 411100 PTA library, No. 38, Shu Yuan Road, Xiangtan high tech Zone, Hunan

Patentee before: XIANGTAN YINHE NEW ENERGY Co.,Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130206