CN205211881U - Automotive power battery module voltage sample device - Google Patents

Automotive power battery module voltage sample device Download PDF

Info

Publication number
CN205211881U
CN205211881U CN201520985387.0U CN201520985387U CN205211881U CN 205211881 U CN205211881 U CN 205211881U CN 201520985387 U CN201520985387 U CN 201520985387U CN 205211881 U CN205211881 U CN 205211881U
Authority
CN
China
Prior art keywords
battery
voltage sampling
current carrying
voltage
sampling circuit
Prior art date
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.)
Active
Application number
CN201520985387.0U
Other languages
Chinese (zh)
Inventor
赵文权
左威威
王省伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Bick New Energy Automobile Co Ltd
Original Assignee
Zhengzhou Bick New Energy Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Bick New Energy Automobile Co Ltd filed Critical Zhengzhou Bick New Energy Automobile Co Ltd
Priority to CN201520985387.0U priority Critical patent/CN205211881U/en
Application granted granted Critical
Publication of CN205211881U publication Critical patent/CN205211881U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 an automotive power battery module voltage sample device, include the battery module of constituteing by battery module, voltage sampling circuit board, recess apron, battery module includes plastic casing, battery electricity core, current -carrying piece. The utility model discloses an adopt the screw to fix voltage sampling circuit board, current -carrying piece and conductive copper sheet in the recess of plastic casing upper end, can realize compressing tightly of voltage sampling circuit board fixedly, enable voltage sampling circuit board and current -carrying piece and conductive copper sheet in close contact with again and realize electrically conducting for voltage sampling signal's security and stability have obtained the improvement. The length of voltage sampling circuit board also can be adjusted according to series connection battery module's number, and the flexibility is high.

Description

A kind of automobile power cell module voltage sampling apparatus
Technical field
The utility model relates to battery pack spare and accessory parts field, particularly relates to a kind of automobile power cell module voltage sampling apparatus.
Background technology
Along with the development of society, electric automobile more and more obtains the favor of people with the advantage that its high-environmental is energy-conservation, applies also more and more general.The battery unit that electric automobile selects lithium ion battery to form usually is as its energy storage device.Wherein, lithium ion battery has that energy density is high, volume is little, power density high, and the battery unit adopting lithium ion battery to form has become current electric automobile main flow developing direction as energy storage device.
Power battery pack is the core of electric automobile energy system, its combination property is determined by the cell that performance in series battery is the poorest, in battery set charge/discharge process, any one monomer overcharges or crosses and puts, capital reduces the performance and used life of whole battery pack, for ensureing the safe and reliable form of electric automobile, the data of the necessary Real-Time Monitoring electrokinetic cell monomer voltage of battery management system, and the approach obtaining electrokinetic cell monomer voltage is exactly voltage sample structure.
At present, the form that secondary lithium-ion battery core starts to adopt just is gradually cylindrical, the particularly pure electric automobile of tesla effective popularization in the world, the monomer battery core of 18650 forms is made to apply more and more extensive on new-energy automobile, but because monomer whose voltage is low, electricity is little, monomer battery core is needed to be assembled by series-parallel form, such Vehicular dynamic battery bag will comprise nearly thousands of battery battery core, and it is greatly inconvenient that this causes to the sampling of electrokinetic cell monomer voltage.Current domestic and international most of producer all adopts the scheme gathering wire harness to gather monomer battery core voltage, it is long that current this mounting means ubiquity wire harness time, installation procedure is complicated, wiring confusion, there is the defects such as unsafe factor in installation process, be badly in need of a kind of novel monomer voltage acquisition mode.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, designs a kind of automobile power cell module voltage sampling apparatus, wire harness complicated, wiring confusion when solving monomer battery core voltage acquisition and there is the problem of potential safety hazard in installation process.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of automobile power cell module voltage sampling apparatus, comprise by battery module, voltage sampling circuit plate, the battery modules of groove cover plate composition, described battery module comprises plastic casing, battery battery core, current carrying lug, at least two battery battery cores in parallel are placed with in described plastic casing by the principle that polar orientation is consistent, described battery battery core and current carrying lug are fixedly connected by welding, conductive copper sheet is provided with between adjacent two battery modules, voltage sampling circuit plate, the adjacent current carrying lug of two battery modules and the upper end of conductive copper sheet are fixed in the groove of plastic casing upper end by securing member, the fluted cover plate of groove upper cover, the side of described battery modules is fixed with two separate conducting strips, is fixed with connection guide card between two conducting strips by securing member.
Further, described plastic casing comprises upper plastic cover and lower plastic cover, the inner chamber of plastic casing is divided into the first battery core district and the second battery core district by plastic barrier hurdle, and the positive pole of the battery battery core in the first battery core district upwards arranges placement, and the negative pole of the battery battery core in the second battery core district upwards arranges placement.
Further, described current carrying lug comprises positive pole current carrying lug and negative pole current carrying lug, and the battery cell welding in described first battery core district is on positive pole current carrying lug, and the battery cell welding in the second battery core district is on negative pole current carrying lug.
Further, described voltage sampling circuit plate is provided with voltage sample plug connector and fixing hole, and the periphery of fixing hole is provided with pad, is connected between each fixing hole with voltage plug connector by electric trace.
Further, described voltage sampling circuit plate is also provided with temperature sampling plug connector and thermistor, is connected by electric trace between thermistor with temperature sampling plug connector.
Further, the upper end of described current carrying lug and conductive copper sheet all leads to voltage sample hole, in the groove of plastic casing upper end, correspondence is provided with threaded voltage sample fixing hole, and described securing member is connected with voltage sample fixing hole with the voltage sample hole of conductive copper sheet upper end through the fixing hole on voltage sampling circuit plate, current carrying lug.
Further, described securing member is screw.
Further, described battery modules comprises the battery modules of at least two series connection, and connecting the material of guide card is any one in copper, aluminium, iron.
Positive beneficial effect of the present utility model:
1, easy to assembly, simple to operate, the good manufacturability of the utility model, with low cost, decreases the many and problem of complexity of sampling wire harness in electrokinetic cell bag largely.
2, by adopting screw to be fixed in the groove of plastic casing upper end by voltage sampling circuit plate, positive pole current carrying lug, negative pole current carrying lug and conductive copper sheet, being fixed voltage sampling circuit plate can be realized, the voltage sample hole close contact of voltage sampling circuit plate and positive pole current carrying lug, negative pole current carrying lug and conductive copper sheet can be made again and realize conducting electricity; And screw also serves electric action, the safety and stability of voltage sampling signal is improved.
3, the length of voltage sampling circuit plate also can adjust according to the number of series-connected battery modules, and flexibility is high.
4, plastic casing upper end is provided with groove, just can form rectangular groove after multiple battery module is cascaded, and voltage sampling circuit plate is fixed in described groove.This Embedded fixed form is not only conducive to voltage sampling circuit plate and contacts with the closely knit of current carrying lug, also protects voltage sampling circuit plate not by external influence.
5, voltage sampling circuit plate of the present utility model adopts flexible PCB, simplifies attended operation when electrokinetic cell monomer voltage gathers.And flexible PCB only just has electric conducting material at voltage acquisition point place and all insulate in its elsewhere, fail safe is improved greatly.
6, the fixing hole of voltage sampling circuit plate and the voltage sample hole one_to_one corresponding of battery module, avoids the mistake that voltage sample data and battery module cannot be corresponding, thus accurately and reliably realizes power battery module voltage acquisition.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model battery modules
Fig. 2 is decomposition texture schematic diagram of the present utility model
Fig. 3 is the perspective view of the utility model battery module
Fig. 4 is the utility model battery module internal structure schematic diagram
Fig. 5 is the utility model battery module polarity connected mode schematic diagram
Fig. 6 is the electronic schematic diagram of the utility model voltage sampling circuit plate 5
Fig. 7 is the electronic schematic diagram of the utility model voltage sampling circuit plate 7
The concrete meaning of number in the figure is: 1 is battery modules, 101, 102, 103, 104 is battery module, 2 is conducting strip, 3 for connecting guide card, 4, 23, 25 is securing member, 5, 7 is voltage sampling circuit plate, 6 is groove cover plate, 8, 12 is negative pole current carrying lug, 9, 13 is positive pole current carrying lug, 10, 11 is conductive copper sheet, 14-19 is voltage sample hole, 20-21 and 30-31 is voltage sample fixing hole, 22, 24 is fixing hole, 26 is plastic casing, 27 is groove, 28 is lower plastic cover, 29 is upper plastic cover, 32, 33 is battery battery core, 34 is the first battery core district, 35 is the second battery core district, 36 is plastic barrier hurdle, 37 is pad, 38 is electric trace, 39 is thermistor, 40, 42 is voltage sample plug connector, 41, 43 is temperature sampling plug connector.
Embodiment
Embodiment of the present utility model is illustrated below in conjunction with accompanying drawing.
See Fig. 1, Fig. 5, automobile power cell module voltage sampling apparatus of the present utility model, comprise the battery modules be made up of battery module, voltage sampling circuit plate, groove cover plate, the side of described battery modules is fixed with two separate conducting strips, and its material can select the electric conducting materials such as copper, aluminium, iron.Be fixed with connection guide card by securing member between two conducting strips, connect guide card and coupled together by two separate conducting strips, like this, the opposite side of battery modules just defines positive pole and the negative pole of this battery modules.Can continue to add battery module at the opposite side of battery modules, thus the total voltage of electrokinetic cell module can be increased.Two voltage sampling circuit plates 5 and 7 are separately fixed in the groove of battery modules, and voltage sampling circuit plate 5 and voltage sampling circuit plate 7 are isolated from the outside and protect by groove cover plate 6.Battery modules in Fig. 1 is in series by 4 battery modules.
See Fig. 2, Fig. 3, Fig. 4, battery module comprises plastic casing, battery battery core, current carrying lug, at least two battery battery cores in parallel are placed with in described plastic casing by the principle that polar orientation is consistent, described battery battery core and current carrying lug are fixedly connected by welding, conductive copper sheet is provided with between adjacent two battery modules, voltage sampling circuit plate, the adjacent current carrying lug of two battery modules and the upper end of conductive copper sheet are fixed in the groove of plastic casing upper end by securing member, the fluted cover plate of groove upper cover.
Negative pole current carrying lug 8 in Fig. 2 and positive pole current carrying lug 9 weld together with the battery battery core negative pole of battery module 103 and positive pole respectively, on negative pole current carrying lug 8, voltage thieff hatch 18 overlaps with voltage sample fixing hole 20 on battery module 103, its position, hole concentric, on positive pole current carrying lug 9, voltage thieff hatch 19 overlaps with voltage sample fixing hole 21 on battery module 103, its position, hole concentric.Negative pole current carrying lug 12 and positive pole current carrying lug 13 weld together with the battery battery core negative pole of power battery module 104 and positive pole respectively, conductive copper sheet 10 and conductive copper sheet 11 are sandwiched between battery module 103 and battery module 104, particularly, conductive copper sheet 10 is clipped between negative pole current carrying lug 8 and negative pole current carrying lug 12, the voltage sample hole 16 of conductive copper sheet 10 is overlapping with voltage sample hole 18 and voltage sample hole 14, they overlap with voltage sample fixing hole 20 on battery module 103 again, similarly, the voltage sample hole 17 of conductive copper sheet 11 is overlapping with voltage sample hole 19 and voltage sample hole 15, they overlap with voltage sample fixing hole 21 on battery module 103 again.
Voltage sampling circuit plate 5 and voltage sampling circuit plate 7 are positioned in the groove 27 of electrokinetic cell module.Voltage sampling circuit plate 5 is provided with voltage sample plug connector 40, temperature sampling plug connector 41 and ten fixing holes, 22, ten fixing holes and is divided into 5 groups, respectively corresponding five battery module voltages sampled points; Similarly, voltage sampling circuit plate 7 is provided with voltage sample plug connector 42, temperature sampling plug connector 43 and ten fixing holes, and ten fixing holes are divided into 5 groups, respectively corresponding five battery module voltages sampled points.On voltage sampling circuit plate 5, fixing hole 22 aligns with voltage sample fixing hole 20 on battery module 103, screw 23 is by fixing hole 22, voltage sample hole 14, voltage sample hole 16, voltage sample hole 18, link together with voltage sample fixing hole 20, screw thread is had to fix to facilitate screw in voltage sample fixing hole 20, similarly, screw 25 is by fixing hole 24, voltage sample hole 15, voltage sample hole 17, voltage sample hole 19, link together with voltage sample fixing hole 21, in voltage sample fixing hole 21, have screw thread to fix to facilitate screw.The like, on voltage sampling circuit plate, other fixing holes fixing hole of also sampling with relevant position battery module voltages is fixed together, being fixed of voltage sampling circuit plate 5,7 can be realized like this, and the pad of voltage sampling circuit plate fixing hole periphery and conducting strip thieff hatch close contact and realize conducting electricity, and screw also serves electric action.
In Fig. 3, Fig. 4, the plastic casing of battery module comprises upper plastic cover 29 and lower plastic cover 28, the inner chamber of plastic casing is divided into the first battery core district 34 and the second battery core district 35 by plastic barrier hurdle 36, the positive pole of the battery battery core in the first battery core district 34 upwards arranges placement, consistent with the direction that battery battery core 33 is placed, the negative pole of the battery battery core in the second battery core district 35 upwards arranges placement, consistent with the direction that battery battery core 32 is placed.Therefore comprise in battery module 101 two kinds of polar orientation battery battery core, they become symmetrical structure to place.Current carrying lug comprises positive pole current carrying lug 13 and negative pole current carrying lug 12, and the battery cell welding in described first battery core district 34 is on positive pole current carrying lug 13, and the battery cell welding in the second battery core district 35 is on negative pole current carrying lug 12.
See Fig. 6, Fig. 7, ten fixing holes 22 in Fig. 6 on voltage sampling circuit plate 5 are divided into five groups, often organize between two fixing holes 22 and be connected with electric trace 38, they are connected with five contact pins of voltage sample plug connector 40 by electric trace 38 again, then export the voltage signal of battery module from contact pin.Outside fixing hole 22, be arranged with the contact area that pad 37 can increase voltage sampling circuit plate 5 and conducting strip 2 thieff hatch, reduce contact resistance, improve stability and the reliability of sampled signal.The thickness of electric trace 38 can be determined according to voltage sampling signal electric current and euqalizing current.Thermistor 39 is connected by the contact pin of electric trace 38 with temperature sampling plug connector 41, and then exports the temperature signal of battery module from contact pin.Similarly, in Fig. 7, ten fixing holes 24 of voltage sampling circuit plate 7 are also divided into five groups, and wherein 4 groups are connected with four contact pins of voltage sample plug connector 42 by electric trace 38, and then export the voltage signal of battery module from contact pin.Thermistor 39 is connected by the contact pin of electric trace 38 with temperature sampling plug connector 43, and then exports the temperature signal of battery module from contact pin.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that; Still can modify to embodiment of the present utility model or equivalent replacement is carried out to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.

Claims (8)

1. an automobile power cell module voltage sampling apparatus, comprise by battery module, voltage sampling circuit plate, the battery modules of groove cover plate composition, described battery module comprises plastic casing, battery battery core, current carrying lug, at least two battery battery cores in parallel are placed with in described plastic casing by the principle that polar orientation is consistent, it is characterized in that: described battery battery core and current carrying lug are fixedly connected by welding, conductive copper sheet is provided with between adjacent two battery modules, voltage sampling circuit plate, the adjacent current carrying lug of two battery modules and the upper end of conductive copper sheet are fixed in the groove of plastic casing upper end by securing member, the fluted cover plate of groove upper cover, the side of described battery modules is fixed with two separate conducting strips, is fixed with connection guide card between two conducting strips by securing member.
2. automobile power cell module voltage sampling apparatus according to claim 1, it is characterized in that: described plastic casing comprises upper plastic cover and lower plastic cover, the inner chamber of plastic casing is divided into the first battery core district and the second battery core district by plastic barrier hurdle, the positive pole of the battery battery core in the first battery core district upwards arranges placement, and the negative pole of the battery battery core in the second battery core district upwards arranges placement.
3. automobile power cell module voltage sampling apparatus according to claim 2, it is characterized in that: described current carrying lug comprises positive pole current carrying lug and negative pole current carrying lug, the battery cell welding in described first battery core district is on positive pole current carrying lug, and the battery cell welding in the second battery core district is on negative pole current carrying lug.
4. automobile power cell module voltage sampling apparatus according to claim 1, it is characterized in that: described voltage sampling circuit plate is provided with voltage sample plug connector and fixing hole, the periphery of fixing hole is provided with pad, is connected between each fixing hole with voltage plug connector by electric trace.
5. automobile power cell module voltage sampling apparatus according to claim 4, be is characterized in that: described voltage sampling circuit plate is also provided with temperature sampling plug connector and thermistor, is connected between thermistor with temperature sampling plug connector by electric trace.
6. automobile power cell module voltage sampling apparatus according to claim 4, it is characterized in that: the upper end of described current carrying lug and conductive copper sheet all leads to voltage sample hole, in the groove of plastic casing upper end, correspondence is provided with threaded voltage sample fixing hole, and described securing member is connected with voltage sample fixing hole with the voltage sample hole of conductive copper sheet upper end through the fixing hole on voltage sampling circuit plate, current carrying lug.
7. the automobile power cell module voltage sampling apparatus according to claim 1 or 6, is characterized in that: described securing member is screw.
8. automobile power cell module voltage sampling apparatus according to claim 1, is characterized in that: described battery modules comprises the battery modules of at least two series connection, and connecting the material of guide card is any one in copper, aluminium, iron.
CN201520985387.0U 2015-12-02 2015-12-02 Automotive power battery module voltage sample device Active CN205211881U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520985387.0U CN205211881U (en) 2015-12-02 2015-12-02 Automotive power battery module voltage sample device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520985387.0U CN205211881U (en) 2015-12-02 2015-12-02 Automotive power battery module voltage sample device

Publications (1)

Publication Number Publication Date
CN205211881U true CN205211881U (en) 2016-05-04

Family

ID=55849580

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520985387.0U Active CN205211881U (en) 2015-12-02 2015-12-02 Automotive power battery module voltage sample device

Country Status (1)

Country Link
CN (1) CN205211881U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328847A (en) * 2016-09-27 2017-01-11 深圳市沃特玛电池有限公司 Battery module structure
CN106505261A (en) * 2016-11-30 2017-03-15 北京新能源汽车股份有限公司 A kind of voltage sample control circuit of battery modules and control method
CN106935918A (en) * 2017-04-09 2017-07-07 河南锂想动力科技有限公司 A kind of safe battery bag parallel circuit structure
CN107068955A (en) * 2017-04-09 2017-08-18 河南锂想动力科技有限公司 A kind of battery bag
CN108645525A (en) * 2017-03-23 2018-10-12 矢崎总业株式会社 Protector and sensor installing structure
WO2020135030A1 (en) * 2018-12-23 2020-07-02 宁德时代新能源科技股份有限公司 Battery module, battery pack and vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328847A (en) * 2016-09-27 2017-01-11 深圳市沃特玛电池有限公司 Battery module structure
CN106505261A (en) * 2016-11-30 2017-03-15 北京新能源汽车股份有限公司 A kind of voltage sample control circuit of battery modules and control method
CN106505261B (en) * 2016-11-30 2019-03-01 北京新能源汽车股份有限公司 A kind of the voltage sample control circuit and control method of battery modules
CN108645525A (en) * 2017-03-23 2018-10-12 矢崎总业株式会社 Protector and sensor installing structure
CN106935918A (en) * 2017-04-09 2017-07-07 河南锂想动力科技有限公司 A kind of safe battery bag parallel circuit structure
CN107068955A (en) * 2017-04-09 2017-08-18 河南锂想动力科技有限公司 A kind of battery bag
CN106935918B (en) * 2017-04-09 2019-08-09 河南锂想动力科技有限公司 A kind of safe battery pack parallel circuit structure
CN107068955B (en) * 2017-04-09 2019-12-27 河南锂想动力科技有限公司 Battery pack
WO2020135030A1 (en) * 2018-12-23 2020-07-02 宁德时代新能源科技股份有限公司 Battery module, battery pack and vehicle

Similar Documents

Publication Publication Date Title
CN205211881U (en) Automotive power battery module voltage sample device
RU2331956C1 (en) Measuring unit of battery temperature and voltage in storage battery
CN204966568U (en) Power battery module
CN107910485B (en) Lithium battery module utmost point ear coupling mechanism
CN105452885B (en) For the system and method for the isolation resistance for determining battery pack
CN110474078A (en) A kind of Soft Roll master die group and assemble method
CN207817169U (en) A kind of safe lithium battery voltage and temperature acquisition pcb board attachment device
CN104659402A (en) Power battery bunching module structure of electric automobile
CN203553300U (en) Battery system and PCB (printed circuit board) wiring board assembly thereof
CN103134956A (en) Fixture used for testing soft roll battery electrical performance
CN206076354U (en) Battery modules
CN107978812A (en) Temperature of powered cell voltage acquisition plate
CN210272522U (en) Soft package standard module
CN207007881U (en) A kind of plug-in technique module performance detects fixture
CN203406338U (en) Battery cover and power battery pack containing same
CN203481330U (en) Safety device of lithium battery pack
CN111060843A (en) Device and method for detecting leakage current of slave board of battery management system
CN205900674U (en) Lithium battery sstructure for electric bicycle
CN204391206U (en) Electric automobile power battery gang mould block structure
CN201303013Y (en) Battery module
CN107741551A (en) 110kV polarity testing device of current transformer
CN209045699U (en) Balanced externally charging typed electric car lithium-ion-power cell mould group
CN106025160A (en) Lithium battery structure for electric bicycles and production method thereof
CN208013389U (en) A kind of battery tester
CN207883861U (en) Temperature of powered cell voltage acquisition plate

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant