CN208797092U - Battery modules - Google Patents
Battery modules Download PDFInfo
- Publication number
- CN208797092U CN208797092U CN201821476112.4U CN201821476112U CN208797092U CN 208797092 U CN208797092 U CN 208797092U CN 201821476112 U CN201821476112 U CN 201821476112U CN 208797092 U CN208797092 U CN 208797092U
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- China
- Prior art keywords
- battery
- pole ear
- hole
- connector
- battery pole
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
This application discloses a kind of battery modules, battery modules include multiple batteries and connector, and battery pole ear is provided on each battery, and the battery pole ear is used to draw the positive and negative anodes of battery, and the connector is used to for the battery pole ear of the multiple battery being electrically connected；Wherein, the connector includes through-hole, and the battery pole ear is inserted into the through-hole, and connect in the lead to the hole site with the connector.The battery module structure is compact, and assembly technology is simple, eliminates the related process of battery pole ear bending, keeps the group efficiency of battery modules higher.Further, the location interval that connector can be also adjusted according to series-parallel demand is laid out, and is more convenient in groups in series and parallel.Connection in the battery modules between battery pole ear is more compact, improves space utilization rate, to improve the energy density and capacity of entire battery system.
Description
Technical field
The utility model relates to battery technology fields, more particularly to a kind of battery modules and attaching method thereof.
Background technique
Lithium ion battery is since emerging, with its, circulation longevity high relative to energy density possessed by other secondary cells
Life is long, self-discharge rate is small, memory-less effect and it is environmentally protective the advantages that, become in field of chemical power source the most electricity of competitive advantage
Pond.Currently, lithium ion battery is widely used to laptop, digital product and electric car, hybrid vehicle very
To fields such as aerospaces.
Polymer Li-ion uses flexible packing material of the aluminum-plastic composite membrane as packaging film, has small in size, light-weight, peace
Complete free of contamination characteristic.Soft-package battery mould group is usually by several battery cells battery that modes are combined into parallel or in series etc.
Heap, the connection type of battery pole ear and connector in soft-package battery mould group, industry is at present by the way of bolt and welding, at present
Welded using more generally bending, but fixture needed to carry out bending to battery pole ear, assembly technology is complicated, group efficiency compared with
It is low.And closedtop welding possesses higher group efficiency, but high to the craft precision requirement for cutting tab, and welding stability is low,
Weld strength is low, not can guarantee welding quality.
Utility model content
In view of this, the present invention provides a kind of battery modules and connection methods, to solve the above problems, make battery mould
The connection between battery in group is more reliable and more stable, and reduces process complexity, improves group efficiency, guarantees in battery modules
Welding quality promotes the production efficiency of battery modules.
The utility model provides a kind of battery modules characterized by comprising
Multiple batteries, battery pole ear is provided on each battery, and the battery pole ear is used to draw the positive and negative anodes of battery；
Connector, the connector are used to for the battery pole ear of the multiple battery being electrically connected；
Wherein, the connector includes through-hole, and the battery pole ear is inserted into the through-hole, and in the lead to the hole site and institute
State connector connection.
Preferably, the connector is sheet, including multiple strip bulges being parallel to each other.
Preferably, the section of the strip bulge be triangle, rectangle, trapezoidal, semicircle, semiellipse, in parabola extremely
Few one kind.
Preferably, the strip bulge runs through the connector in its axial direction, the position of the strip bulge with
The position of the battery pole ear is corresponding.
Preferably, the through-hole is located on the strip bulge, the shape of the shape of the through-hole and the battery pole ear
Match.
Preferably, the via bottoms opening is greater than the through-hole aperture.
Preferably, the through-hole be rectangular through-hole, via bottoms be spread outward it is horn-like.
Preferably, the via bottoms are not less than 20 degree to the inclined surface of external diffusion and the angle of vertical direction.
Preferably, the connector, which is cut by metal material by punching press, is made.
Preferably, the entire widths of the connector are greater than the tab thickness.
Preferably, it is attached between the battery pole ear and the connector by laser sequential welding.
Preferably, the size of the connector, setting are spaced and are arranged position according to the series-parallel side of the multiple battery
Formula and the length of the battery pole ear determine.
Preferably, the depth that the battery pole ear is inserted into the through-hole is not more than the thickness of the connector, the tab
Top without departing from the through-hole top.
Preferably, the battery pole ear is turned to the connection sheet in the lead to the hole site by the laser welding molten
Melt state interconnection, and is solidified in the lead to the hole site.
The beneficial effects of the utility model are:
Battery modules provided by the utility model, connection structure is compact, and assembly technology is simple, eliminates battery pole ear
The related process of bending keeps the group efficiency of battery modules higher.Further, also connector can be adjusted according to series-parallel demand
Location interval layout, be more convenient in groups in series and parallel.Compared to be bolted or clamping plate clamping battery pole ear connection type, should
The connection structure of battery pole ear used in battery modules keeps battery modules more compact, improves space utilization rate, to mention
The high energy density and capacity of entire battery system.The battery modules use laser welding by the battery pole ear and the company
Contact pin is connected, and has the advantages that weld strength is high, and stability is strong, and welding deformation is small, simple process, improves battery modules
Yields reduces production cost, can also do a variety of transformation on this basis, with adapt to different specification size battery pole ear and
Series-parallel connection type has very strong compatibility, it is easy to accomplish.
Detailed description of the invention
By the way that the utility model embodiment is described referring to the drawings, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 show the schematic diagram connected between battery in the utility model embodiment battery modules.
Fig. 2 show the schematic diagram of connector in the utility model embodiment.
Fig. 3 show the partial enlargement diagram of the utility model embodiment battery modules.
Specific embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It is detailed to describe some specific detail sections below in the datail description of the utility model.To those skilled in the art
The utility model can also be understood completely in the description of part without these details for member.In order to avoid obscuring the utility model
Essence, there is no narrations in detail for well known method, process, process, element.
Fig. 1 show the schematic diagram connected between battery in the utility model embodiment battery modules, the battery modules 100
It include: battery 110, battery pole ear 120 and connector 130.Wherein, the battery 110 is multiple, and the multiple battery 110 is in
Laterally equidistant arrangement, the top of the battery 110 all have corresponding battery pole ear 120 for drawing the battery 110 just
Cathode, the battery pole ear 120 is, for example, the positive pole ear of battery or the negative lug of battery, the battery pole ear 120 include
Metal material, the metal material of selection are, for example, at least one of aluminium or nickel.The battery pole ear 120 is, for example, sheet, directly
The top of the battery 110 is stood on, of course, the battery pole ear 120 may be alternatively located at the bottom or side of the battery 110.
Further, in order to keep the connection of the battery 110 and the battery pole ear 120 more firm, make the battery pole ear 120
Upright state is more stable, and the top of the battery 110 further includes support construction 111, and the support construction 111 is located at the electricity
The side of pond tab 120, and connect with the side of the battery pole ear 120, it is used to support the battery pole ear 120, guarantees electricity
The stability of pond tab 120, the connection between the battery pole ear 120 and the support 111 are for example realized by the way that film is Nian Jie.
Connector 130 is located at the top of the battery pole ear 120, for connecting the battery pole ear 120, to realize between battery 110
In series and parallel, and battery modules 100 are ultimately formed.The connector 130 is, for example, sheet, convex including multiple bar shapeds being parallel to each other
131 are played, the strip bulge 131 runs through the connector 130 in its axial direction, makes the section of the connector 130 be in
The waveform of dipping and heaving, the position of the strip bulge 131 is corresponding with 120 position of battery pole ear, described in diagram
The section of strip bulge 131 be isosceles trapezoid, of course, section can also for triangle, rectangle, trapezoidal, semicircle, semiellipse,
Any one in parabola.The connector 130 for example, metal material is cut by punching press to be made, the connector 130
Surface be, for example, coarse surface, in order to carry out laser welding process.It include through-hole 132, institute on the strip bulge 131
It states through-hole 132 and is corresponding with welding section 140, the battery pole ear 120 is inserted into the through-hole 132, in 140 pairs of welding section institute
It states connector 130 and the battery pole ear 120 carries out laser welding, the two is connected as one.Because of the battery pole ear 120
Side has a support construction 111, the battery pole ear 120 be inserted into after the through-hole 132 can carry out it is slight laterally adjust,
To guarantee at least side of the through-hole 132 and the spacing of the battery pole ear 120, make the battery pole after laser welding
Ear 120 and the stable connection of the connector 130 are firm.
Further, using the welding manner of laser welding, caused by welding deformation it is small, and the welding section 140 is located at
On the strip bulge 131, the structure of the connection sheet 130, which can be very good to absorb gentle tip-off, practices midwifery and raw deformation and answers
Power, additional fixation or protection structure can be set in the gap between the adjacent strip bulge 131, and can't additionally occupy sky
Between, make finally formed battery modules more safety and firmness, compact reliable.
Fig. 2 is the schematic diagram of the connector of the utility model embodiment, which includes strip bulge 131 and lead to
Hole 132, the through-hole 132 are connected as one for accommodating the battery pole ear 120, and by laser welding and the tab 120
Body.The connector 130 is, for example, sheet, described including multiple being parallel to each other and tool strip bulge 131 at regular intervals
Strip bulge 131 runs through the connector 130 in its axial direction, makes the section of the connector 130 in dipping and heaving
The section of waveform, the strip bulge 131 is for example, trapezoidal.The through-hole 132 is located at the top surface of the strip bulge 131
On, the through-hole 132 is, for example, rectangular through-hole, and the shape and size of the through-hole 132 match with the battery pole ear 120,
The entire widths are slightly larger than the tab thickness, and the size being greater than is, for example, 0.1mm.
Fig. 3 show the partial enlargement diagram of the utility model embodiment battery modules, and lower zone is electricity in diagram
Chi Mo group 100, upper right side are the enlarged drawing of the a-quadrant in battery modules 100.Battery modules 100 further include some be auxiliarily fixed
Or guard block, the base part are not the emphasis of the utility model, therefore be not described.The battery modules 100 include
Battery 110, battery pole ear 120 and connector 130.In the amplification diagram of a-quadrant, the strip bulge 131 of the connector 130
Position is corresponding with the battery pole ear 120, has through-hole 132, the top of the battery pole ear 120 on the strip bulge 131
Portion is inserted into the through-hole 132 of the connector 130, the top of the top of the battery pole ear 120 without departing from the through-hole 132.
The bottom of the through-hole 132 has flare openings 133, and the flare openings 133 play the insertion of the battery pole ear 120
To guiding role, it is more easily aligned battery pole ear 120 and is inserted into the through-hole 132, the inclination of the flare openings 133
The angle of face and vertical direction is not less than 20 degree.
Of course, when the battery pole ear 120 being connect with the connector 130, the battery pole ear 120 is inserted first
Enter in the through-hole 132 on the connector 130, the side for then passing through laser welding in the corresponding welding section 140 of the through-hole 132
The battery pole ear 120 is connected by formula with the connector 130, and the battery pole ear 120 is inserted into the depth of the through-hole 132
No more than the thickness of the connector 130, the top of the top of the battery pole ear 120 without departing from the through-hole 132.It is described to swash
The battery pole ear 120 is turned to molten state in the welding section 140 with the connection sheet 130 and is attached by photocoagulation, and
132 position of the through-hole solidification.
Battery modules provided by the utility model, connection structure is compact, and assembly technology is simple, eliminates battery pole ear
The related process of bending keeps the group efficiency of battery modules higher.Further, also connector can be adjusted according to series-parallel demand
Location interval layout, be more convenient in groups in series and parallel.Compared to be bolted or clamping plate clamping battery pole ear connection type, should
The connection structure of battery pole ear used in battery modules keeps battery modules more compact, improves space utilization rate, to mention
The high energy density and capacity of entire battery system.The battery modules use laser welding by the battery pole ear and the company
Contact pin is connected, and has the advantages that weld strength is high, and stability is strong, and welding deformation is small, simple process, improves battery modules
Yields reduces production cost, can also do a variety of transformation on this basis, with adapt to different specification size battery pole ear and
Series-parallel connection type has very strong compatibility, it is easy to accomplish.
In addition, it should be understood by one skilled in the art that attached drawing is provided to the purpose of explanation, attached drawing provided herein
It is not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and its range is sufficiently conveyed
To those skilled in the art.Many specific details are presented to provide thorough understanding of the disclosure.Those skilled in the art will
Understand, does not need using specific detail, example embodiment can be carried out in many different forms, and example embodiment is not
It should be understood to limit the scope of the present disclosure.In some example embodiments, well-known device structure and well-known
Technology be not described in.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field
For technical staff, the utility model can have various modifications and changes.All institutes within the spirit and principle of the utility model
Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of battery modules characterized by comprising
Multiple batteries, each battery are provided with battery pole ear, and the battery pole ear is used to draw the positive and negative anodes of battery；
Connector, the connector are used to for the battery pole ear of the multiple battery being electrically connected；
Wherein, the connector includes through-hole, and the battery pole ear is inserted into the through-hole, and in the lead to the hole site and the company
Fitting connection.
2. battery modules according to claim 1, which is characterized in that the connector is sheet, including multiple mutually flat
Capable strip bulge.
3. battery modules according to claim 2, which is characterized in that the section of the strip bulge be triangle, rectangle,
At least one of trapezoidal, semicircle, semiellipse, parabola.
4. battery modules according to claim 2, which is characterized in that the strip bulge runs through institute in its axial direction
Connector is stated, the position of the strip bulge is corresponding with the position of the battery pole ear.
5. battery modules according to claim 2, which is characterized in that the through-hole is located on the strip bulge, described
The shape of through-hole matches with the battery pole ear shape.
6. battery modules according to claim 1, which is characterized in that the via bottoms opening is greater than the through-hole hole
Diameter.
7. battery modules according to claim 1, which is characterized in that the through-hole is rectangular through-hole, the via bottoms
It is horn-like for what is spread outward.
8. battery modules according to claim 7, which is characterized in that the via bottoms are to the inclined surface of external diffusion and perpendicular
Histogram to angle be not less than 20 degree.
9. battery modules according to claim 7, which is characterized in that the width of the through-hole is greater than the battery pole ear
Thickness.
10. battery modules according to claim 1, which is characterized in that the battery pole ear is inserted into the depth of the through-hole
No more than the thickness of the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821476112.4U CN208797092U (en) | 2018-09-10 | 2018-09-10 | Battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821476112.4U CN208797092U (en) | 2018-09-10 | 2018-09-10 | Battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208797092U true CN208797092U (en) | 2019-04-26 |
Family
ID=66208968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821476112.4U Active CN208797092U (en) | 2018-09-10 | 2018-09-10 | Battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208797092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429234A (en) * | 2019-07-05 | 2019-11-08 | 恒大新能源科技集团有限公司 | A kind of no busbar connector battery module structure and assemble method |
| CN113964457A (en) * | 2021-09-28 | 2022-01-21 | 上海空间电源研究所 | Restorable high-expansion-rate lithium ion battery |
| CN114824668A (en) * | 2022-03-31 | 2022-07-29 | 东风汽车集团股份有限公司 | Series-parallel switching device, battery pack and vehicle |
-
2018
- 2018-09-10 CN CN201821476112.4U patent/CN208797092U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429234A (en) * | 2019-07-05 | 2019-11-08 | 恒大新能源科技集团有限公司 | A kind of no busbar connector battery module structure and assemble method |
| CN113964457A (en) * | 2021-09-28 | 2022-01-21 | 上海空间电源研究所 | Restorable high-expansion-rate lithium ion battery |
| CN114824668A (en) * | 2022-03-31 | 2022-07-29 | 东风汽车集团股份有限公司 | Series-parallel switching device, battery pack and vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |