CN209045699U - Balanced externally charging typed electric car lithium-ion-power cell mould group - Google Patents

Balanced externally charging typed electric car lithium-ion-power cell mould group Download PDF

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Publication number
CN209045699U
CN209045699U CN201821916559.9U CN201821916559U CN209045699U CN 209045699 U CN209045699 U CN 209045699U CN 201821916559 U CN201821916559 U CN 201821916559U CN 209045699 U CN209045699 U CN 209045699U
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China
Prior art keywords
lithium
ion
mould group
battery modules
core
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CN201821916559.9U
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Chinese (zh)
Inventor
张宏飞
赵显蒙
卢达
李再一
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Huading Guolian Power Battery Co Ltd
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Huading Guolian Power Battery Co Ltd
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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 kind of externally charging typed electric car lithium-ion-power cell mould groups of equilibrium, including battery modules.Battery modules include several lithium-ion electric cores, and after each lithium-ion electric core is on a battery core frame, battery core frame stacked arrangement arranged side by side is at battery modules.Battery modules are placed in module shell.The series circuit formed after being connected between each lithium-ion electric core by electric connecting sheet is positive and negative extremely to be connect with mould group positive and negative electrode respectively.Battery modules top surface mounting circuit boards, welding circuit board has equalizaing charge interface, equalizaing charge interface is equipped with charging pins, and each charging pins are by the conducting wire of circuit board, electric connecting sheet and each lithium-ion electric core are positive and the lithium-ion electric core cathode that is connected with mould group cathode is connect.The insulation protection cover with charging opening is equipped at the top of battery modules, insulation protection cover covers battery modules top surface, and equalizaing charge interface exposes from charging opening.The utility model is under the premise of without dismantling, equalizaing charge while being realized by external recharging apparatus to each lithium-ion electric core.

Description

Balanced externally charging typed electric car lithium-ion-power cell mould group
Technical field
The utility model relates to a kind of externally charging typed electric car lithium-ion-power cell mould groups of equilibrium, belong to battery modules Equalizaing charge technical field.
Background technique
The battery system of lithium ion battery is the driving power being most widely used in China's electric car.And lithium-ion electric Chi Mo group is the important component of lithium ion battery of electric automobile system, is the major storage carrier of energy.Currently, battery system System includes several battery modules according to energy requirement.And battery modules are then to pass through group in parallel or series by several single battery cores At.However, in actual use, due to battery core caused by itself difference such as the internal resistance of single battery core, capacity and external environment The difference of use state can all cause each battery core voltage in battery system to generate inconsistency, therefore long-term inconsistent meeting Cause battery core to overcharge in charge and discharge process or over-discharge, seriously affects the service life of battery core and battery system.Existing battery core Equalization methods include unpacking equilibrium when BMS is balanced and battery system is safeguarded.But BMS euqalizing current is very small, usually only There are several hundred milliamperes, it is very little to the proportionality action that dozens to hundreds of peace battery core rises at present.And unpacking equilibrium when safeguarding is then It is difficult to accomplish equilibrium to concatenated battery core each in battery modules, also needs replacing mould group when necessary, cost is very high.
Utility model content
The purpose of this utility model is to provide a kind of externally charging typed electric car lithium-ion-power cell mould group of equilibrium, It is compact-sized reasonable, pass through external charging under the premise of without dismantling by the design of the components such as exposed equalizaing charge interface Device can be realized to equalizaing charge while each lithium-ion electric core in battery modules.
To achieve the goals above, the utility model uses following technical scheme:
A kind of externally charging typed electric car lithium-ion-power cell mould group of equilibrium, it is characterised in that: it includes battery modules, Wherein: battery modules include several lithium-ion electric cores, and each lithium-ion electric core is embedded on battery core frame made of an isolation material, embedding By the battery core frame of lithium-ion electric core, stacked arrangement forms battery modules side by side mutually;Battery modules are placed in the mould group of open top In shell;After being connected between each lithium-ion electric core by electric connecting sheet the circuit that is formed it is positive and negative it is extreme respectively with mould group anode, mould Group cathode connection;The circuit board for being printed with conducting wire is installed on the top surface of battery modules, equalizaing charge is welded on circuit board and connects Mouthful, equalizaing charge interface is equipped with several charging pins, the quantity of charging pins than lithium-ion electric core quantity more than one, respectively fill Electric pin is connected with the anode of each lithium-ion electric core and with mould group cathode respectively by conducting wire, the electric connecting sheet on circuit board The cathode of lithium-ion electric core connects;The top button of battery modules is equipped with the insulation protection cover with charging opening, insulation protection cover The top surface of battery modules is covered but equalizaing charge interface is open from charging and exposes.
The utility model has the advantages that:
The utility model is compact-sized rationally, sets by the structure of exposed equalizaing charge interface, circuit board and electric connecting sheet Meter under the premise of without dismantling, directly connects equilibrium by external charging unit and fills in battery system maintenance Electrical interface, can to each of battery modules lithium-ion electric core simultaneously carry out equalizaing charge, by each lithium-ion electric core it Between voltage difference be reduced in acceptable range.Also, the utility model devises acquisition interface, can be in real time to each lithium ion Situations such as temperature of battery core, voltage, is monitored, so as to take equalizaing charge operation in due course.
Detailed description of the invention
Fig. 1 is the structural perspective of the balanced externally charging typed electric car lithium-ion-power cell mould group of the utility model.
Fig. 2 is the STRUCTURE DECOMPOSITION signal of the balanced externally charging typed electric car lithium-ion-power cell mould group of the utility model Figure.
Fig. 3 is that the equalizaing charge explanation of the balanced externally charging typed electric car lithium-ion-power cell mould group of the utility model is shown It is intended to.
Specific embodiment
As shown in Figure 1 to Figure 3, the balanced externally charging typed electric car lithium-ion-power cell mould group of the utility model includes electricity Chi Mo group 20, in which: battery modules 20 include several lithium-ion electric cores 4, and each lithium-ion electric core 4 is embedded in an isolation material (such as Plastics) made of on battery core frame 3, stacked arrangement forms battery modules to the battery core frame 3 embedded with lithium-ion electric core 4 side by side mutually 20;Battery modules 20 are placed in the module shell 9 of open top;It is (each by the connection of electric connecting sheet 6 between each lithium-ion electric core 4 Series, parallel or series-parallel connection between lithium-ion electric core 4) circuit that is formed afterwards it is positive and negative it is extreme respectively with mould group anode 8, mould Group cathode 10 connects;The circuit board 5 for being printed with conducting wire is installed on the top surface of battery modules 20, is welded with equilibrium on circuit board 5 Charging interface 7, equalizaing charge interface 7 are equipped with several charging pins, and the quantity of charging pins is more than the quantity of lithium-ion electric core 4 One, each charging pins by conducting wire on circuit board 5, electric connecting sheet 6 respectively with the anode and and mould of each lithium-ion electric core 4 The cathode connection of that connected lithium-ion electric core 4 of group cathode 10;The top button of battery modules 20, which is equipped with, has charging opening 11 insulation protection cover 1, insulation protection cover 1 cover the top surface of battery modules 20, and equalizaing charge interface 7 reveals from charging opening 11 Out.
In actual design, the positive and negative electrode of lithium-ion electric core 4 is connected with the tab for being connected with electric connecting sheet 6 (in figure It is not shown).
Such as Fig. 1, mould group anode 8, mould group cathode 10 are arranged on the top surface of battery modules 20 and exposed, i.e. insulation protection cover 1 only covers the overwhelming majority of 20 top surface of battery modules, but does not cover to mould group anode 8, mould group cathode 10, in order to mould The positive and negative electrode of group anode 8, mould group cathode 10 and external loading realizes good connection.
In actual design, the positive and negative electrode of lithium-ion electric core 4 can be located at the same side or be located at phase heteropleural, depending on actual demand Depending on, correspondingly, electric connecting sheet 6 can be set to the top surface and/or bottom of battery modules 20 according to the position of 4 positive and negative anodes of lithium-ion electric core On face, the technology how electric connecting sheet 6 connect with the positive and negative electrode of lithium-ion electric core 4 is the common knowledge of this field, is not added herein To be described in detail.
In actual design, the conducting wire on circuit board 5 is connect by electric wire with electric connecting sheet 6, is certainly not limited to this, example Such as, the conducting wire on circuit board 5 can take the connection type with about 6 overlying contact of electric connecting sheet.
In the present invention, lithium-ion electric core 4 is metal side's shell battery core or soft pack cell, is certainly not limited to this.
Lithium-ion electric core 4 can be the parallel-connection structure of single battery core or several battery cores, that is to say, that the equilibrium of the utility model Charging is not limited only to single battery core, and can also multiple battery cores of parallel combination be carried out with whole equalizaing charge.
Such as Fig. 1, acquisition interface 2 is also welded on circuit board 5, acquisition interface 2 is equipped with several acquisition pins, acquires pin Quantity than lithium-ion electric core 4 quantity more than one, it is each acquire pin by conducting wire on circuit board 5, electric connecting sheet 6 respectively with The connection of the cathode of the anode of each lithium-ion electric core 4 and that lithium-ion electric core 4 being connected with mould group cathode 10;Insulation protection Lid 1 is equipped with acquisition opening 12, while insulation protection cover 1 covers the top surface of battery modules 20, makes acquisition interface 2 from acquisition Opening 12 is exposed.
In the present invention, acquisition interface 2 is used to connect with external detection device, so as in real time to each lithium ion Situations such as temperature of battery core 4, voltage, is monitored, to take equalizaing charge operation in due course.
Such as Fig. 3, it is assumed that n lithium-ion electric core 4 is sequentially connected in series, and equalizaing charge interface 7 is equipped with n+1 charging pins PIN 1~PIN n+1, n are the positive integer greater than 1, and then, charging pins 1~PIN of PIN n+1 passes through conducting wire, the electricity on circuit board 5 Connection sheet 6 is connect with the anode of the cathode of lithium-ion electric core 4 (battery core 1), other each lithium-ion electric cores 4 (1~n of battery core) respectively, Similarly, be equipped with the n+1 acquisition pin of acquisition interface 2 also by circuit board 5 conducting wire, electric connecting sheet 6 respectively with lithium from The anode connection of the cathode of sub- battery core 4 (battery core 1), other each lithium-ion electric cores 4 (1~n of battery core).
When in use, the mould group anode 8, mould group cathode 10 and the positive and negative electrode of external loading of the utility model is enabled to connect, The power supply to load can be realized.
In battery system maintenance, without disassembling the utility model, directly by the charging of external charging unit Socket is connected on equalizaing charge interface 7, can be carried out equilibrium simultaneously to each lithium-ion electric core 4 in battery modules 20 and be filled Electricity.
The utility model has the advantages that:
The utility model is compact-sized rationally, sets by the structure of exposed equalizaing charge interface, circuit board and electric connecting sheet Meter under the premise of without dismantling, directly connects equilibrium by external charging unit and fills in battery system maintenance Electrical interface, can to each of battery modules lithium-ion electric core simultaneously carry out equalizaing charge, by each lithium-ion electric core it Between voltage difference be reduced in acceptable range.Also, the utility model devises acquisition interface, can be in real time to each lithium ion Situations such as temperature of battery core, voltage, is monitored, so as to take equalizaing charge operation in due course.
The above is the utility model preferred embodiment and its technical principle used, for those skilled in the art It is any based on technical solutions of the utility model basis without departing substantially from the spirit and scope of the utility model for member On equivalent transformation, simple replacement etc. it is obvious change, belong within scope of protection of the utility model.

Claims (6)

1. a kind of externally charging typed electric car lithium-ion-power cell mould group of equilibrium, it is characterised in that: it includes battery modules, In: battery modules include several lithium-ion electric cores, and each lithium-ion electric core is embedded on battery core frame made of an isolation material, is embedded with Stacked arrangement forms battery modules to the battery core frame of lithium-ion electric core side by side mutually;Battery modules are placed in outside the mould group of open top In shell;After being connected between each lithium-ion electric core by electric connecting sheet the circuit that is formed it is positive and negative it is extreme respectively with mould group anode, mould group Cathode connection;The circuit board for being printed with conducting wire is installed on the top surface of battery modules, equalizaing charge interface is welded on circuit board, Equalizaing charge interface is equipped with several charging pins, the quantity of charging pins than lithium-ion electric core quantity more than one, it is each to charge Pin by conducting wire on circuit board, electric connecting sheet respectively with the anode of each lithium-ion electric core and the lithium being connected with mould group cathode The cathode of ion battery core connects;The top button of battery modules is equipped with the insulation protection cover with charging opening, and insulation protection cover will The top surface of battery modules covers but equalizaing charge interface exposes from charging opening.
2. balanced externally charging typed electric car lithium-ion-power cell mould group as described in claim 1, it is characterised in that:
The positive and negative electrode of the lithium-ion electric core is connected with the tab for being connected with the electric connecting sheet.
3. balanced externally charging typed electric car lithium-ion-power cell mould group as described in claim 1, it is characterised in that:
Mould group anode, the mould group cathode are arranged on the top surface of the battery modules and exposed.
4. balanced externally charging typed electric car lithium-ion-power cell mould group as described in claim 1, it is characterised in that:
Conducting wire on the circuit board is connect by electric wire with the electric connecting sheet.
5. balanced externally charging typed electric car lithium-ion-power cell mould group as described in claim 1, it is characterised in that:
The lithium-ion electric core is metal side's shell battery core or soft pack cell.
6. the externally charging typed electric car lithium-ion-power cell mould group of equilibrium as described in any one of claims 1 to 5, special Sign is:
Acquisition interface is also welded on the circuit board, acquisition interface is equipped with several acquisition pins, acquires the quantity ratio of pin The quantity of the lithium-ion electric core is one more, and each pin that acquires passes through the conducting wire on the circuit board, electric connecting sheet difference It is connect with the cathode of the anode of each lithium-ion electric core and the lithium-ion electric core being connected with the mould group cathode;It is described Insulation protection, which covers, is equipped with acquisition opening, while the insulation protection cover covers the top surface of the battery modules, makes to acquire Interface exposes from acquisition opening.
CN201821916559.9U 2018-11-20 2018-11-20 Balanced externally charging typed electric car lithium-ion-power cell mould group Active CN209045699U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821916559.9U CN209045699U (en) 2018-11-20 2018-11-20 Balanced externally charging typed electric car lithium-ion-power cell mould group

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821916559.9U CN209045699U (en) 2018-11-20 2018-11-20 Balanced externally charging typed electric car lithium-ion-power cell mould group

Publications (1)

Publication Number Publication Date
CN209045699U true CN209045699U (en) 2019-06-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821916559.9U Active CN209045699U (en) 2018-11-20 2018-11-20 Balanced externally charging typed electric car lithium-ion-power cell mould group

Country Status (1)

Country Link
CN (1) CN209045699U (en)

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