CN205104581U - 18650 batteries of electric vehicle package assembly of type electricity core - Google Patents
18650 batteries of electric vehicle package assembly of type electricity core Download PDFInfo
- Publication number
- CN205104581U CN205104581U CN201520891834.6U CN201520891834U CN205104581U CN 205104581 U CN205104581 U CN 205104581U CN 201520891834 U CN201520891834 U CN 201520891834U CN 205104581 U CN205104581 U CN 205104581U
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- CN
- China
- Prior art keywords
- batteries
- utility
- model
- brace
- little module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
(B, ) the utility model relates to a batteries of electric vehicle field. The utility model provides a (B, ) (b) 18650 batteries of electric vehicle package assembly of type electricity core, this structure includes a plurality of 18650 types electricity core, a plurality of 18650 types electricity core passes through the connection piece and connects into little module in parallel, the connection piece includes the strip shaped metal piece and locates the utmost point ear at strip shaped metal piece length direction middle part, a plurality of 18650 types electricity core rethread connection piece that connects into little module through the connection piece in parallel connects in parallel / establishes ties. The utility model discloses a draw forth the middle part that a little sets up in little module with the power, effectively improved the harmony of batteries of electric vehicle group, improve battery life and work efficiency, the utility model discloses an earlier parallelly connected for little module with a plurality of electric cores, the structure of big module connects into little module in parallel again, at the welding jobs of electric core and connection piece rosin joint etc. Appears when bad, only need tear open broken single individual little module can, reduced the waste of electric core, improved the yield. (B, )
Description
Technical field
The utility model relates to batteries of electric automobile field, particularly a kind of batteries of electric automobile package assembly of 18650 type battery cores.
Background technology
Power vehicle storage battery many employings monomer battery core carries out series-parallel system connection, due to all incomplete same in the temperature etc. of monolithic storage battery each monolithic storage battery in manufacture, initial capacity, voltage, internal resistance and batteries, in use, overcharge and the overdischarge phenomenon of certain monolithic storage battery can be caused, other storage battery of the Capacity Ratio of indivedual storage battery can be caused time serious all low, in discharge process, first its electricity discharges.Because the voltage of this storage battery is low, lose again the ability of electric discharge, at this moment it just becomes an electrical appliance, all the other still have the storage battery of capacity to be just together in series to its charging, there is the reverse electrode phenomena of storage battery, whole batteries normally can not be worked, great impact is caused on the life of storage battery of antipole simultaneously.In charging process, first the storage battery be first discharged, can be filled again, so just there will be overcharge phenomenon, makes whole batteries normally can not be filled electricity.The capacity of the actual releasing in fact in a group storage battery is determined by that block storage battery that actual capacity is minimum, and when namely this battery capacity runs out, other storage batterys cannot work on.Also be like this in charging process.Therefore, in the energy storage battery course of work of hybrid vehicle, the lack of uniformity between storage battery is the factor be harmful to very much affecting battery-operated, carries out Balance route be extremely necessary battery pack.
Now, the application of battery management system BMS and the conforming improvement of battery core improve current balance discharge and recharge problem, but in battery structure in groups, also have the space of continuing to improve.Now conventional cell parallel mode mainly contains two kinds:
The brace of whole is connected with battery core by electric resistance welding or laser welding by first.
Second first uses bar shaped brace that battery core is in parallel, then is connected by bar shaped brace.
The portfolio effect of the first scheme is best, but existing technique when welding once there is the situation of rosin joint, will whole group of orcible entry, cause very burden to production, rate of finished products is low.First scheme carries out the mode connected from end after mostly adopting whole piece extraction now.Its equivalent circuit diagram as shown in Figure 3, this kind of connected mode is due to the existence of brace resistance, make when battery set charge/discharge, battery core charging and discharging currents near exit (both positive and negative polarity) is maximum, and the battery core electric current of far-end is little, the voltage being simultaneously added in battery core two ends is also inconsistent, thus causes the imbalance of battery pack.
Utility model content
The purpose of this utility model is to provide a kind of batteries of electric automobile package assembly improving 18650 type battery cores of batteries of electric automobile portfolio effect, and the utility model provides following technical scheme:
A kind of batteries of electric automobile package assembly of 18650 type battery cores, this structure comprises multiple 18650 type battery cores, described multiple 18650 type battery cores are by brace and be unified into little module, described brace comprises bullion sheet and is located at lug in the middle part of described bullion leaf length direction, by brace and the multiple 18650 type battery cores being unified into little module carry out parallel/series by brace again.
As a kind of preferred version of the present utility model, the bullion sheet of described brace has two lugs, lay respectively at the both sides in the middle part of bullion leaf length direction, the length direction edge along bullion sheet extends vertically upward.
As another kind of preferred version of the present utility model, when described multiple 18650 type battery cores are little module by brace parallel connection, described brace is fitted with plastic cement brace.
The utility model advantage is:
1, the utility model is by being arranged at the middle part of little module by power supply leading point, effectively improves the harmony of batteries of electric automobile group, improves battery life and operating efficiency;
2, the utility model adopts first parallel connection to be little module, less modules in parallel is become the structure of large module, when the weld job of battery core and brace occurs that rosin joint etc. is bad, only needs to tear open broken single little module, decreases the waste of battery core, improve rate of finished products.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view;
Fig. 2 is the utility model brace perspective view;
Fig. 3 is existing connected mode equivalent circuit diagram;
Fig. 4 is the utility model structural equivalents circuit diagram.
Number in the figure is:
1-brace, 11-bullion sheet, 12-lug
2-plastic cement connector 3-18650 type battery core
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
As shown in accompanying drawing 2 the utility model brace perspective view, brace 1 is for comprising bullion sheet 11 and lug 12, and in the present embodiment, lug 12 has two, lays respectively at the middle part on bullion sheet 11 two long limits.Lug 12 is provided with the screwed hole for connecting, for being interconnected between two lugs 12.Lug 12 upwards extends along the length direction edge of bullion sheet 11, is namely arranged in orthogonal two planes with bullion sheet.
As shown in accompanying drawing 1 the utility model perspective view, a kind of batteries of electric automobile package assembly of 18650 type battery cores, this structure comprises multiple 18650 type battery cores, multiple 18650 type battery cores 3 are by brace 1 and be unified into little module, in the present embodiment, be a little module by 6 18650 type battery core 3 parallel connections.Be that two little modules carry out structural representation in parallel in Fig. 1.When two little modules carry out parallel connection, the lug 12 of two little modules is bonded to each other, can be locked by screw.
If accompanying drawing 4 is for shown in the utility model structural equivalents circuit diagram, the electric current of lug 12 both sides is substantially identical, to reach the overall equilibrium of lug 12 liang of lateral circuits, realizes the equilibrium of power outlet circuit.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change can expected without creative work or replacement, all should be encompassed within protection range of the present utility model.Therefore, the protection range that protection range of the present utility model should limit with claims is as the criterion.
Claims (3)
1. the batteries of electric automobile package assembly of a type battery core, this structure comprises multiple 18650 type battery cores, it is characterized in that: described multiple 18650 type battery cores (3) are by brace (1) and be unified into little module, described brace (1) comprises bullion sheet (11) and is located at the lug (12) in the middle part of described bullion sheet (11) length direction, by brace (1) and the multiple 18650 type battery cores (3) being unified into little module carry out parallel/series by brace (1) again.
2. the batteries of electric automobile package assembly of a kind of 18650 type battery cores according to claim 1, it is characterized in that: the bullion sheet (11) of described brace (1) has two lugs (12), lay respectively at the both sides in the middle part of bullion sheet (11) length direction, the length direction edge along bullion sheet (11) extends vertically upward.
3. the batteries of electric automobile package assembly of a kind of 18650 type battery cores according to claim 1, it is characterized in that: when described multiple 18650 type battery cores (3) are little module by brace (1) parallel connection, described brace (1) is fitted with plastic cement brace (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891834.6U CN205104581U (en) | 2015-11-10 | 2015-11-10 | 18650 batteries of electric vehicle package assembly of type electricity core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891834.6U CN205104581U (en) | 2015-11-10 | 2015-11-10 | 18650 batteries of electric vehicle package assembly of type electricity core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104581U true CN205104581U (en) | 2016-03-23 |
Family
ID=55520339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520891834.6U Expired - Fee Related CN205104581U (en) | 2015-11-10 | 2015-11-10 | 18650 batteries of electric vehicle package assembly of type electricity core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104581U (en) |
-
2015
- 2015-11-10 CN CN201520891834.6U patent/CN205104581U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20191110 |