CN101908641A - High-power storage battery pack and assembly method - Google Patents
High-power storage battery pack and assembly method Download PDFInfo
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- CN101908641A CN101908641A CN2010102178208A CN201010217820A CN101908641A CN 101908641 A CN101908641 A CN 101908641A CN 2010102178208 A CN2010102178208 A CN 2010102178208A CN 201010217820 A CN201010217820 A CN 201010217820A CN 101908641 A CN101908641 A CN 101908641A
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- stud welding
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a high-power storage battery pack and an assembly method. The high-power storage battery pack is characterized by being formed by combining a plurality of storage battery strings which are in serial/parallel connection, wherein each storage battery string is formed by connecting one or more storage batteries in series; and a purpose-made stud welding screw is welded on the battery shell bottom of each storage battery string or a battery cover or a safety valve cover on the battery cover. A main body of the stud welding screw is a stud with standard threads; the bottom of the stud is provided with a regular quadrilateral or regular hexagonal bottom stud; the bottom of the regular quadrilateral or regular hexagonal stud is provided with a standard welding flange and the tip end which are matched with the stud; and the stud welding screw is formed by processing a material in one step. When the stud welding screw is used for fastening a nut in the assembly process, the shearing force applying to the stud welding screw is mostly transferred to a battery string bracket which is matched with the stud welding screw, thereby overcoming the defect of stress in the welding position of the welding screw and improving reliability. Meanwhile, an auxiliary drainage device is assembled at the outer side of the stud welding screw, thus the resistance of the connecting position is further reduced.
Description
Technical field
The present invention relates to the high-power battery group that use in fields such as a kind of batteries and assemble method, particularly electric automobile.
Background technology
At present, the high-power battery group is applied to the electric automobile field at large.In these purposes, batteries is the high current charge-discharge with hundreds of amperes through regular meeting, in order to improve utilization rate of electrical, reduces heat release, wishes to reduce as far as possible the contact resistance between batteries internal resistance and batteries and the power consumption equipment.And, for the ease of maintenance, wish that above-mentioned junction is convenient to dismounting.
For widely used column type storage battery, because internal storage battery negative pole when packing battery material into is connected with the bottom surface battery container with the coating periphery, anodal and battery cover and the safe valve gap that is assemblied on the battery cover are connected, therefore, when forming batteries, must be with electric conductor with the battery cover of a storage battery or be assemblied in safe valve gap on the battery cover and the housing of another storage battery is linked in sequence.
In the known technology, modal is by spot welding cell batteries to be connected the bunchiness shape with the weldering cup, in the two ends of storage battery string mounting terminal, is combined into batteries again.
Disclose a kind of terminal among the day disclosure special permission JP08-287898, can carry out the current collection of column type storage battery with low resistance, also very convenient when assembling and maintenance.But this terminal complex manufacturing technology, cost is higher, and the spot weld operation step is more.Disclosed technology department branch has solved the problems referred to above among the Chinese patent CN2724212, but still exists when the storage battery string is combined into batteries, and the double-screw bolt that is welded solder side when clamp nut is stressed bigger, the problem that comes off easily.
Summary of the invention
One of the object of the invention provides a kind of high power storage battery group, and described high-power battery group was ganged up series/parallel by a plurality of storage batterys and combined, and wherein each storage battery string is in series by one or more storage batterys.It is characterized in that: adopt on the battery case bottom of each storage battery string or battery cover or the safety valve on the battery cover covers a kind of purpose-made stud welding screw of welding, this stud welding screw is in assembling process during clamp nut, the suffered shearing force major part of stud welding screw be passed to the stud welding screw and the battery strings bracing frame of joining on, thereby avoided the stressed disadvantage of stud welding screw weld, improved reliability.Simultaneously, be equipped with a kind of auxiliary drainage system in the stud welding screw outside, with the resistance of further reduction junction.
Above-mentioned stud welding screw, it is characterized in that: the main body of stud welding screw is a double-screw bolt with standard thread, the bottom of double-screw bolt is a square or regular hexagon bottom surface cylinder, and the bottom of positive four limits or regular hexagon cylinder is welding flange and the tip with the standard of above-mentioned double-screw bolt coupling.Stud welding screw is formed by a kind of material time processing.Its material can adopt the metal of good conductivity such as copper, aluminium, nickel, silver, copper alloy, aluminium alloy, carbon steel, preferentially adopts copper alloy.The stud welding screw outside is electrosilvering, nickel, copper etc. preferably.
Described stud welding screw is characterized in that: it also can be made up of two parts, and a part is commercial standard stud welding screw, and another part is standardized square nut or six-sided nut.After two parts screw, by methods such as electric resistance weldings the two is welded as a whole again.Its two parts adopt with a kind of material.Material can adopt the metal of good conductivity such as copper, aluminium, nickel, silver, copper alloy, aluminium alloy, carbon steel, preferentially adopts copper alloy, the best electrosilvering in outside, nickel, copper etc.
Described auxiliary drainage system is characterized in that: the size of anodal auxiliary guide ring will match with the size of stud welding screw and the size of safe valve gap and battery seal plate.The size of the auxiliary guide ring of negative pole will match with the size of stud welding screw and the size at the bottom of the battery case.Its material can adopt nickel, steel, aluminium, copper etc., preferentially adopts nickel.
Described batteries, its feature also is: the storage battery string bracing frame that has a cover and described storage battery string to be complementary, the sidewall of the side of the square on the storage battery string bracing frame or the sidewall in regular hexagon hole and stud welding screw positive limit shape or regular hexagon cylinder and anodal auxiliary guide ring or the auxiliary guide ring of negative pole closely cooperates, when screwing nut, the shearing force that stud welding screw is subjected to can be passed on the storage battery string bracing frame.
Described storage battery string bracing frame is characterized in that: its material is that the materials such as resin of electric insulation are made.
Two of purpose of the present invention is assemble methods (seeing embodiment 1 for details) of high-power battery group.
The present invention proposes a kind of battery pack and assemble method, the safety valve of employing on the battery case of cell body bottom or battery cover or on the battery cover covers a kind of purpose-made stud welding screw of welding, this weldering nail is in assembling process during clamp nut, the suffered shearing force major part of stud welding screw is passed on the battery strings bracing frame that cooperates with stud welding screw, thereby avoided the stressed disadvantage of weldering nail weld, improved reliability.Simultaneously, at a kind of auxiliary drainage system of assembling, further reduced the resistance of junction in the stud welding screw outside.
Description of drawings
Fig. 1 is a kind of batteries provided by the invention.
Fig. 2 is a kind of stud welding screw provided by the invention.
Fig. 3 is the auxiliary drainage system of proposition of the present invention.
Fig. 4 is the schematic diagram that stud welding screw that the present invention proposes is connected with battery strings positive and negative electrode side.(a) be side of the positive electrode; (b) be negative side.
Fig. 5 is a kind of supporting storage battery string bracing frame of stud welding screw that proposes with the present invention.
Fig. 6 is the batteries assemble method schematic diagram that the present invention proposes.
Fig. 7 is a kind of compound stud welding screw that the present invention proposes.
Fig. 8 is another kind of stud welding screw and the another kind of compound stud welding screw that the present invention proposes.
Fig. 9 is the auxiliary drainage system of the another kind of proposition of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is illustrated.And following example is the example that the present invention is specialized, and does not constitute the qualification to technical scope of the present invention.
Embodiment 1:
The batteries 1 of present embodiment is composed in series by several storage battery strings 2, and each storage battery string 2 has several cell batteries to be in series again, sees accompanying drawing 1.The positive terminal of storage battery string 2 is battery seal plate 3 and the safe valve gap 4 above it, the battery case bottom 5 that the negative pole end of storage battery string 2 is.On above-mentioned safe valve gap 4, be welded with a kind of stud welding screw 6 and anodal auxiliary guide ring 7 that the present invention proposes.On at the bottom of the above-mentioned battery case, be welded with stud welding screw 6 and the auxiliary guide ring 17 of negative pole.(Fig. 4 a and b)
As shown in Figure 2, described stud welding screw 6 main bodys are a double-screw bolt 6 (1) with standard thread, and the bottom of double-screw bolt 6 is a positive square cylinder 6 (2), and the bottom of positive cubic cylinder is welding flange and the tip with the standard of above-mentioned double-screw bolt coupling.
The material of stud welding screw 6 can adopt the metal of good conductivity such as copper, aluminium, nickel, silver, copper alloy, aluminium alloy, carbon steel, preferentially adopts copper alloy.The best electrosilvering in stud welding screw 6 outsides, nickel, copper etc.
As shown in Figure 3, the inside dimension of the positive square cylinder part 7 (1) of the auxiliary guide ring 7 of described positive pole will be complementary with positive square cylinder 6 (2) external dimensions of stud welding screw 6, the inside dimension of the round platform part 7 (1) of anodal auxiliary guide ring 7 will match with the external dimensions of safety valve gap 4, and the base diameter of anodal auxiliary guide ring 7 and the projection external diameter of battery seal plate 3 are consistent.The inside dimension of the positive square cylinder part 17 (1) of the auxiliary guide ring 17 of described negative pole will match with positive square cylinder 6 (2) external dimensions of stud welding screw 6, and the base diameter of the auxiliary guide ring 17 of negative pole is not more than the external diameter of the projection of battery case bottom 5.
The material of anodal auxiliary guide ring 7 and the auxiliary guide ring 17 of negative pole can adopt nickel, steel, aluminium, copper etc., preferentially adopts nickel.
Batteries number of assembling steps provided by the invention is:
1. stud welding screw is connected with battery strings, and its process as shown in Figure 4;
At the side of the positive electrode of battery strings 2, stud welding screw 6 usefulness energy storage stud welding machines are welded on the accumulator protection valve lid 4 earlier.Then the auxiliary guide ring 7 usefulness resistance welder points of positive pole are welded on the battery seal plate 3.See accompanying drawing 4 (a).
In the negative side of battery strings 2, earlier stud welding screw 6 usefulness energy storage stud welding machines are welded at the bottom of the storage battery battery case on 5.Then the auxiliary guide ring 17 usefulness resistance welder points of negative pole are welded at the bottom of the battery case on 5.See accompanying drawing 4 (b).
2. the storage battery string 1 that is connected with stud welding screw in the step 1 is inserted into by the arrangement mode of design in advance on the battery strings bracing frame 8 (seeing accompanying drawing 5) that non-conducting material such as resin makes, needs adjacent two storage battery strings, the 2 both positive and negative polarity inverted arrangements that connect.By fastener (not marking) that bracing frame 8 is fixing.Conductive connecting piece 9 is installed on adjacent two storage battery strings, the 2 positive and negative electrode double-screw bolts that needs connect, is tightened with nut 10.
The length of side of square hole will add auxiliary 2 times of thickness sums of drainage system with stud welding screw 6 positive square cylinder 6 (2) length of sides and matches on the battery strings bracing frame 8.
As shown in Figure 6, after storage battery string 2 is inserted on the storage battery string bracing frame 8, the sidewall 8 (1) of the square hole on the battery strings bracing frame 8 closely cooperates with the sidewall 7 (1) or 17 (1) of the side of stud welding screw 6 positive square cylinders 6 (2) and anodal auxiliary guide ring 7 or the auxiliary guide ring 17 of negative pole, when nut 10 screws, the shearing force that stud welding screw 6 is subjected to is passed on the battery strings bracing frame 8, thereby avoided between stud welding screw 6 and the safety valve gap 4 or stud welding screw 6 and weld between the battery case bottom 5 are subjected to bonding strength that big shearing force may cause and reduce or separate, can guarantee tight contact the between conductive connecting piece 9 and the storage battery string 2 again, have lower contact resistance.
During batteries 1 work, electric current can also be assisted guide ring 17 conductings via auxiliary guide ring 7 of positive pole and negative pole, thereby further reduce the internal resistance of batteries 1 except via stud welding screw 6 conductings.
Accompanying drawing 7 is another kind of compound stud welding screw 11 that the present invention proposes.
Compound stud welding screw 11 is made up of two parts, and a part is the stud welding screw 12 of standard, and another part is the square nut 13 of standard.
During making, square nut 13 is screwed with standard stud welding screw 12, also can by methods such as electric resistance welding, crimping the two be connected as a single entity again.
The advantage of compound stud welding screw 11 is directly to purchase commercially available standard component, and cost is low, and can be according to arrange in pairs or groups out the specification of needs of different flexible designs.
The usage of compound stud welding screw 11 is with embodiment 1.
Embodiment 3
Accompanying drawing 8 is another kind of stud welding screw that the present invention proposes, and it can be with the similar one of embodiment 1, also can be with similar compound of embodiment 2.The weldering nail that proposes with embodiment 1 and embodiment 26 is compared with 11, and except that square column 6 (2) or square nut 13 are changed into regular hexagon cylinder or the regular hexagon nut, other are all identical.
Accompanying drawing 9 is to follow closely the auxiliary drainage system 16 of matching used a kind of positive pole with the weldering of present embodiment proposition.With similar among the embodiment 1, remove the round platform part 16 (2) in the anodal auxiliary drainage system 16, the auxiliary drainage system of matching used negative pole is followed closely in the weldering that just can obtain proposing with present embodiment.
When stud welding screw that the use present embodiment proposes and supporting drainage system, the square hole in the battery strings bracing frame 8 need make the regular hexagon hole into.
The weldering nail that present embodiment proposes can use on a battery strings different extreme simultaneously with the stud welding screw 6 or 11 that embodiment 1 or embodiment 2 propose, be welded on the positive pole of battery strings 2 as stud welding screw and anodal auxiliary drainage system 16 present embodiment, and with the stud welding screw 6 of embodiment 1 or embodiment 3 or 11 and negative pole drainage system 17 be welded on the negative pole of battery strings 2, as long as battery strings bracing frame 8 pre-designed square hole or regular hexagon hole on diverse location just can reach the wrong effect of prevention both positive and negative polarity dress when installing.
The present invention includes but be not limited to battery pack among the embodiment, can also be used to the batteries that adopts a plurality of storage battery string series/parallels to be combined into, also can be applied to battery pack square, that the multi-edge column-shaped cell is formed.
Claims (10)
1. high power type batteries is characterized in that described batteries ganged up series/parallel by a plurality of storage batterys and combine, and wherein each storage battery string is in series by one or more storage batterys; On the battery case of each storage battery string bottom or battery cover or the safety valve on the battery cover cover and be welded with a kind of purpose-made stud welding screw, this weldering nail is in assembling process during clamp nut, the suffered shearing force major part of stud welding screw is passed on the battery strings bracing frame that cooperates with stud welding screw, thereby avoided the stressed disadvantage of weldering nail weld, improved reliability.
2. batteries as claimed in claim 1, the main body that it is characterized in that described Russia stud welding screw is a double-screw bolt with standard thread, the bottom of double-screw bolt is a square or regular hexagon bottom surface cylinder, and the bottom of positive four limits or regular hexagon cylinder is welding flange and the tip with the standard of above-mentioned double-screw bolt coupling; Stud welding screw is formed by a kind of material time processing.
3. batteries as claimed in claim 1 or 2, the material that it is characterized in that described stud welding screw adopts copper, aluminium, nickel, silver, copper alloy, aluminium alloy or the carbon steel double-screw bolt of good conductivity.
4. batteries as claimed in claim 3, the material that it is characterized in that described stud welding screw is a copper alloy.
5. batteries as claimed in claim 1 or 2 is characterized in that the outer electrosilvering of stud welding screw, nickel or copper.
6. batteries as claimed in claim 1 or 2 is characterized in that being equipped with a kind of auxiliary drainage system in the stud welding screw outside, with the further resistance that reduces the junction; Described auxiliary drainage system is characterized in that the size of anodal auxiliary guide ring will be complementary with the size of stud welding screw and the size of safe valve gap and battery seal plate; The size of the auxiliary guide ring of negative pole will be complementary with the size of stud welding screw and the size at the bottom of the battery case.
7. batteries as claimed in claim 6 is characterized in that its material of described auxiliary drainage system adopts nickel, steel, aluminium or copper.
8. batteries as claimed in claim 2 is characterized in that:
1. described stud welding screw is made up of two parts, and a part is commercial standard stud welding screw, and another part is standardized square nut or six-sided nut; After two parts screw, by methods such as electric resistance weldings the two is welded as a whole again;
2. two parts adopt same a kind of material of good conductivity, and material is copper, aluminium, nickel, silver, copper alloy, aluminium alloy or carbon steel.
9. assemble the method for batteries as claimed in claim 1 or 2, it is characterized in that:
A) at first stud welding screw is connected with the positive and negative electrode of battery strings:
1. at the side of the positive electrode of battery strings, now stud welding screw is welded on accumulator protection valve with the energy storage stud welding machine and covers, then the auxiliary guide ring of positive pole is welded on the battery seal plate with the resistance welder point;
2. in the negative side of battery strings, existing be welded on storage battery battery case at the bottom of with the energy storage stud welding machine stud welding screw on, then negative pole is assisted on guide ring is welded at the bottom of the battery case with the resistance welder point;
B) the storage battery string that will be connected with stud welding screw is inserted on the battery strings bracing frame that the nonconductive resin material makes by the arrangement mode of design in advance, adjacent two storage battery string positive and negative electrode inverted arrangements that needs are connected; By fastener bracing frame is fixed; On adjacent two storage battery string positive and negative electrode double-screw bolts that needs connect, conductive connecting piece is installed, is tightened with nut.
10. by the described assemble method of claim 9, it is characterized in that the length of side of the square hole on the bracing frame matches with the thickness sum that the positive square cylinder length of side of stud screw adds 2 times of auxiliary drainage systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102178208A CN101908641A (en) | 2010-06-30 | 2010-06-30 | High-power storage battery pack and assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102178208A CN101908641A (en) | 2010-06-30 | 2010-06-30 | High-power storage battery pack and assembly method |
Publications (1)
| Publication Number | Publication Date |
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| CN101908641A true CN101908641A (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102178208A Pending CN101908641A (en) | 2010-06-30 | 2010-06-30 | High-power storage battery pack and assembly method |
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| CN (1) | CN101908641A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022578A (en) * | 2011-09-22 | 2013-04-03 | 深圳市沃特玛电池有限公司 | Security structure of power battery pack |
| CN103151484A (en) * | 2013-02-22 | 2013-06-12 | 河南能驰电源有限公司 | Connection board structure between battery posts |
| CN103208601A (en) * | 2012-01-16 | 2013-07-17 | 锂能源日本有限公司 | Power Source Unit |
| CN103682188A (en) * | 2012-08-31 | 2014-03-26 | 微宏动力系统（湖州）有限公司 | Flame-retardant explosion-proof battery pack |
| CN106252542A (en) * | 2016-09-29 | 2016-12-21 | 南京机电职业技术学院 | Combined battery device for interchanging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223095A (en) * | 1999-01-28 | 2000-08-11 | Sanyo Electric Co Ltd | Power supply unit |
| CN1347163A (en) * | 1995-02-17 | 2002-05-01 | 日本电池株式会社 | Cell holder |
| CN2724212Y (en) * | 2004-07-07 | 2005-09-07 | 辽宁九夷三普电池有限公司 | Accumulator |
-
2010
- 2010-06-30 CN CN2010102178208A patent/CN101908641A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347163A (en) * | 1995-02-17 | 2002-05-01 | 日本电池株式会社 | Cell holder |
| JP2000223095A (en) * | 1999-01-28 | 2000-08-11 | Sanyo Electric Co Ltd | Power supply unit |
| CN2724212Y (en) * | 2004-07-07 | 2005-09-07 | 辽宁九夷三普电池有限公司 | Accumulator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022578A (en) * | 2011-09-22 | 2013-04-03 | 深圳市沃特玛电池有限公司 | Security structure of power battery pack |
| CN103022578B (en) * | 2011-09-22 | 2016-05-18 | 深圳市沃特玛电池有限公司 | A kind of safeguard construction of power battery pack |
| CN103208601A (en) * | 2012-01-16 | 2013-07-17 | 锂能源日本有限公司 | Power Source Unit |
| CN103208601B (en) * | 2012-01-16 | 2017-05-10 | 株式会社杰士汤浅国际 | Power Source Unit |
| CN103682188A (en) * | 2012-08-31 | 2014-03-26 | 微宏动力系统（湖州）有限公司 | Flame-retardant explosion-proof battery pack |
| CN103682188B (en) * | 2012-08-31 | 2016-08-31 | 微宏动力系统（湖州）有限公司 | Flame-proof explosion-proof battery pack |
| CN103151484A (en) * | 2013-02-22 | 2013-06-12 | 河南能驰电源有限公司 | Connection board structure between battery posts |
| CN106252542A (en) * | 2016-09-29 | 2016-12-21 | 南京机电职业技术学院 | Combined battery device for interchanging |
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Application publication date: 20101208 |