CN110208713A - A kind of test macro and charge-discharge test method of battery modules - Google Patents
A kind of test macro and charge-discharge test method of battery modules Download PDFInfo
- Publication number
- CN110208713A CN110208713A CN201910496663.XA CN201910496663A CN110208713A CN 110208713 A CN110208713 A CN 110208713A CN 201910496663 A CN201910496663 A CN 201910496663A CN 110208713 A CN110208713 A CN 110208713A
- Authority
- CN
- China
- Prior art keywords
- tooling
- battery modules
- electrode terminal
- copper bar
- positioning
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of test macro of battery modules and charge-discharge test methods.The test macro includes: workbench, battery modules, the first connecting tooling and the second connecting tooling.Test macro and charge-discharge test method based on battery modules provided by the present application, the first connecting tooling positioning is installed in the end plate and second connecting tooling positioning is installed in the workbench, determine positive and negative electrode by the different location and installation mode of connecting tooling, thus can effectively reduce positive and negative electrode it is reversed and cause short circuit risk.
Description
Technical field
The present invention relates to the measuring technology of battery modules, in particular to the test macro and charge and discharge electrical measurement of a kind of battery modules
Method for testing.
Background technique
It after power battery module is completed, needs to carry out online charge-discharge test, to detect the connection between battery core
The basic electric property energy of reliability and mould group.Since the positive and negative electrode of battery modules is mostly the copper bar in strap bolt hole, so p-wire
Connection also be mostly used be bolted.Moreover, because the diversity of battery modules design, architectural difference between different battery modules compared with
Greatly, it is quickly connected, can only be selected p-wire with the bolt of mould group copper bar bolt hole same size without dedicated tooling
It is fixed with copper bar.If the bolt size that positive and negative electrode uses is identical, there are the reversed risks of positive and negative anodes.
Based on the demand, a kind of test of battery modules that can be effectively reduced the reversed risk of positive and negative electrode how is provided
Device, become has technical problem to be solved in the prior art.
Summary of the invention
This application provides a kind of test macro of battery modules and charge-discharge test methods, can be effectively reduced positive negative electricity
Extremely reversed risk.
One embodiment of the application provides a kind of assembly positioning device of battery modules, comprising:
Workbench, the workbench is for carrying battery modules；
Battery modules, the battery modules have first electrode terminal and second electrode terminal, wherein the first electrode
Terminal is located at the top of the battery modules and adjacent with the end plate of the battery modules, and the second electrode terminal is located at institute
State the endplate root of battery modules；
First connecting tooling, first connecting tooling positioning be installed in the end plate and with the first electrode terminal
Connection；
Second connecting tooling, second connecting tooling positioning be installed in the workbench and with the second electrode end
Son connection.
Optionally, the end plate has heat release hole, and first connecting tooling is positioned by the grafting with the heat release hole
It realizes and is installed in the positioning of the end plate.
Optionally, first connecting tooling includes:
First attachment base, first attachment base have the positioning pin mating with the heat release hole, and described the
A connecting seat has perforative first transit space；
First tooling copper bar, the first tooling copper bar are fixed on first transit space, and have and described the
First extension section of one electrode terminal connection；
First fastening unit, first fastening unit are installed in first attachment base, and to the first tooling copper
Row provides the fastening force to the first electrode terminal.
Optionally, first fastening unit be through the first tooling copper bar and with the first electrode terminal screw thread
The coupling bar of cooperation.
Optionally, the coupling bar is installed with handwheel, and first attachment base has in the side of the first tooling copper bar
There is protection side, wherein the coupling bar is through the protection side and the handwheel is arranged in the first tooling copper bar phase negative side
The side on the upward protection side.
Optionally, the workbench has flange, and second connecting tooling is positioned real by the clamping with the flange
The positioning installing of the present workbench.
Optionally, second connecting tooling includes:
Second attachment base, second attachment base have the locating clip being engaged by clamping with the flange, and described second
Attachment base has perforative second transit space；
Second tooling copper bar, the second tooling copper bar are fixed on second transit space, and have and described the
Second extension section of two electrode terminals connection；
Second fastening unit, second fastening unit are installed in second attachment base, and to the second tooling copper
Row provides the fastening force to the second electrode terminal.
Optionally, second fastening unit is that one end and the second tooling copper bar compress and have rotation in response to external force
Turn the free arm of freedom degree, wherein the free arm, which has, offsets external force and provide the fastening to the second tooling copper bar
The returning device of power；Second attachment base has the bracket for supporting the free arm, also, the bracket and the free arm
It is connected by pin shaft.
Optionally, the first electrode terminal is adjacent with a side end panel of the battery modules, the second electrode terminal
Positioned at the bottom of another side end panel of the battery modules.
The application another embodiment provides for a kind of charge-discharge test methods of battery modules, comprising:
S110, the battery modules being completed are placed on the workbench；
S120, first connecting tooling positioning is installed in the end plate and is connect with the first electrode terminal, with
And second connecting tooling positioning is installed in the workbench and is connect with the second electrode terminal；
S130, external test device is respectively connected to described in first connecting tooling and second connecting tooling progress
The charge-discharge test of battery modules.
The test macro and charge-discharge test method of the battery modules provided based on the above embodiment, the first connection work
It sets that position is installed in the end plate and second connecting tooling positioning is installed in the workbench, it is different to pass through connecting tooling
Location and installation mode determine positive and negative electrode, so it is reversed and cause the risk of short circuit to can effectively reduce positive and negative electrode.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 a and Fig. 1 b are one of the application one embodiment front view of the test macro of battery modules and bow
View；
Fig. 2 a and Fig. 2 b are the axis surveys view and left side view of the battery modules in embodiment as shown in Figure 1；
Fig. 3 is the axis surveys view of the first connecting tooling in the application one embodiment；
Fig. 4 is the axis surveys view of the second connecting tooling in the application one embodiment；
Fig. 5 is the flow chart of one of another embodiment of the application charge-discharge test method of battery modules.
Label declaration
110 workbench
111 flanges
120 battery modules
121 first electrode terminals
122 second electrode terminals
123,123' end plate
124 heat release holes
130 first connecting toolings
131 first attachment bases
1311 positioning pins
1312 first transit spaces
1313 protection sides
1314 cascaded surfaces
132 first tooling copper bars
1321 first extension sections
133 first fastening units
1331 coupling bars
1332 handwheels
140 second connecting toolings
141 second attachment bases
1411 locating clips
1412 second transit spaces
1413 brackets
142 second tooling copper bars
1421 second extension sections
143 second fastening units
1431 free arms
1432 returning devices
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, and does not represent it
Practical structures as product.In addition, so that simplified form is easy to understand, with the portion of identical structure or function in some figures
Part only symbolically depicts one of those, or has only marked one of those.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than indicate significance level and sequence and
Existing premise etc. each other.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
Fig. 1 a and Fig. 1 b are one of the application one embodiment front view of the test macro of battery modules and bow
View；Fig. 2 a and Fig. 2 b are the axis surveys view and left side view of the battery modules in embodiment as shown in Figure 1.
A, Fig. 1 b, Fig. 2 a and Fig. 2 b, one embodiment of the application provide a kind of test of battery modules referring to Figure 1
System, comprising: workbench 110, battery modules 120, the first connecting tooling 130 and the second connecting tooling 140.
Wherein, workbench 110 is for carrying battery modules 120；Battery modules 120 have first electrode terminal 121 and the
Two electrode terminals 122, first electrode terminal 121 be located at the top of battery modules 120 and with 123 phase of the end plate of battery modules 120
Neighbour, second electrode terminal 122 are located at the bottom end plate 123' of battery modules 120；The positioning of first connecting tooling 130 is installed in end plate
It 123 and is connect with first electrode terminal 121；Second connecting tooling 140 positioning be installed in workbench 110 and with second electrode end
Son 122 connects.
To determine the positive and negative electrode of battery modules by the different location and installation mode of connecting tooling, can effectively drop
Low positive and negative electrode is reversed and causes the risk of short circuit.
In order to realize the quick connection of the first connecting tooling 130 and battery modules 120, end plate 123 has heat release hole 124,
First connecting tooling 130 is realized by the grafting positioning with heat release hole 124 and is installed in the positioning of end plate 123.
Fig. 3 be the application one embodiment in the first connecting tooling axis surveys view, refer to Fig. 3 and combine Fig. 1 a and
Fig. 1 b, the first connecting tooling 130 include: the first attachment base 131, the first tooling copper bar 132 and the first fastening unit 133.
Wherein, the first attachment base 131 has the positioning pin 1311 mating with heat release hole 124, and the first attachment base
131 have perforative first transit space 1312；First tooling copper bar 132 is fixed on the first transit space 1312, and has
The first extension section 1321 being connect with first electrode terminal 121；First fastening unit 133 is installed in the first attachment base 131, and right
First tooling copper bar 132 provides the fastening force to first electrode terminal 121.
In order to cooperate with the fastening thread on first electrode terminal 121, and excessive stress will not be caused to end plate 123,
First fastening unit 133 is through the first tooling copper bar 132 and the coupling bar 1331 that is threadedly engaged with first electrode terminal 121.
First connecting tooling 130 and the connection of first electrode terminal 121 and the fixation of coupling bar 1331 for convenience, connection
Bolt 1331 is installed with handwheel 1332, and the first attachment base 131 has protection side 1313 in the side of the first tooling copper bar 132, wherein
Coupling bar 1331 through protection while 1313 and handwheel 1332 protection in first tooling copper bar, 132 opposite direction is set while 1313
Side.
In order to cooperate the grafting of positioning pin 1311 and heat release hole 124 to position and reduce the first tooling copper bar 132 to end plate 123
Active force, the first attachment base 131 is further provided with the cascaded surface 1314 with 120 edge mate of battery modules.
Fig. 4 be the application one embodiment in the second connecting tooling axis surveys view, refer to Fig. 4 and combine Fig. 1 a and
Fig. 1 b, workbench 110 have flange 111, and the second connecting tooling 140 is realized by the clamping positioning with flange 111 in workbench
110 positioning installing.
Second connecting tooling 140 includes: the second attachment base 141, the second tooling copper bar 142 and the second fastening unit 143.
Wherein, the second attachment base 141 has the locating clip 1411 being engaged by clamping with flange 111, and the second attachment base 141
With perforative second transit space 1412；Second tooling copper bar 142 is fixed on the second transit space 1412, and has and the
Second extension section 1421 of two electrode terminals 122 connection；Second fastening unit 143 is installed in the second attachment base 141, and to second
Tooling copper bar 142 provides the fastening force to second electrode terminal 122.
In order to realize the quick connection of the second connecting tooling 140 and battery modules 120, the second fastening unit 143 is one end
The free arm 1431 of rotary freedom is compressed and had in response to external force with the second tooling copper bar 142, wherein free arm 1431 has
Have and offsets external force and provide the returning device 1432 of fastening force to the second tooling copper bar 142；Second attachment base 141 has support certainly
By the bracket 1413 of arm 1431, also, bracket 1413 is connect with free arm 1431 by pin shaft.In practical application in industry, return
Position device 1432 can be torsion spring device.
The quick assembling of the second attachment base 141 and the second fastening unit 143, the second attachment base 141 can be set for convenience
Set the sliding rail being slidably matched with bracket 1413.
Since the first fastening unit 133 is bolted with first electrode terminal 121, the first connecting tooling 130 with
It is smaller to the active force of end plate 123 in 120 connection procedure of battery modules, thus the first connecting tooling 130 can by with heat dissipation
The grafting positioning in hole 124 is installed on end plate 123, and a side end panel 123 of first electrode terminal 121 and battery modules 120
It is adjacent.
Since the second fastening unit 143 is fixed by free arm 1431 with second electrode terminal 122, in the second connecting tooling
140 with it is larger to the active force of end plate 123' in 120 connection procedure of battery modules, so the second connecting tooling 140 by with it is convex
The positioning of locating clip 1411 that edge 111 is engaged by clamping is installed on workbench 110, and second electrode terminal 122 is located at battery mould
The bottom of another side end panel 123' of group 120.
Fig. 5 is the flow chart of one of another embodiment of the application charge-discharge test method of battery modules.
Refer to Fig. 5, the application another embodiment provides for a kind of charge-discharge test method of battery modules, packets
It includes:
S110, the battery modules 120 being completed are placed on workbench 110；
S120, the positioning of the first connecting tooling 130 is installed in end plate 123 and is connect with first electrode terminal 121, and,
The positioning of second connecting tooling 140 is installed in workbench 110 and is connect with second electrode terminal 122；
S130, external test device is respectively connected to the first connecting tooling 130 and the second connecting tooling 140 progress battery mould
The charge-discharge test of group 120.
It is understood that step S120 does not install the positioning of the first connecting tooling 130 and the second connecting tooling 140
Sequence is defined.
Using the test device of battery modules provided by the above embodiment, step S120 may include:
The positioning of first connecting tooling 130 is installed in end plate 123 and is connect with first electrode terminal 121；
Firstly, passing through mating, cascaded surface 1314 and battery modules 120 the side of positioning pin 1311 and heat release hole 124
Edge cooperation makes the threaded hole of coupling bar 1331 and first electrode terminal 121 to just；
Then, rotation hand wheel 1332 makes the first tooling copper bar 132 contact and fasten with first electrode terminal 121；
The positioning of second connecting tooling 140 is installed in workbench 110 and is connect with second electrode terminal 122；
Firstly, making the second tooling copper bar 142 and second electrode terminal by the clamping engagement of locating clip 1411 and flange 111
122 pairs just；
Then, the opening of free arm 1431 is made to connect second electrode terminal 122 sufficiently with the second tooling copper bar 142 by external force
Touching；
Finally, release external force, free arm 1431 make the second tooling copper bar 142 and second under the action of returning device 1432
The contact fastening of electrode terminal 122.
In step s 130, the external cable of external test device passes through the first transit space 1312 and the first tooling copper bar
132 connections are connect by the second transit space 1412 with the second tooling copper bar 142, and external test device is opened after connection
Carry out the charge-discharge test of battery modules.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of test macro of battery modules, which is characterized in that the test macro includes:
Workbench, the workbench is for carrying battery modules；
Battery modules, the battery modules have first electrode terminal and second electrode terminal, wherein the first electrode terminal
Positioned at the top of the battery modules and adjacent with the end plate of the battery modules, the second electrode terminal is located at the electricity
The endplate root of Chi Mo group；
First connecting tooling, the first connecting tooling positioning are installed in the end plate and connect with the first electrode terminal；
Second connecting tooling, the second connecting tooling positioning are installed in the workbench and connect with the second electrode terminal
It connects.
2. test macro according to claim 1, which is characterized in that the end plate has heat release hole, first connection
Tooling is realized by the grafting positioning with the heat release hole and is installed in the positioning of the end plate.
3. test macro according to claim 2, which is characterized in that first connecting tooling includes:
First attachment base, first attachment base has the positioning pin mating with the heat release hole, and described first connects
Joint chair has perforative first transit space；
First tooling copper bar, the first tooling copper bar are fixed on first transit space, and have and first electricity
First extension section of extreme son connection；
First fastening unit, first fastening unit is installed in first attachment base, and mentions to the first tooling copper bar
Feed to the fastening force of the first electrode terminal.
4. test macro according to claim 3, which is characterized in that first fastening unit is through first work
Dress copper bar and the coupling bar being threadedly engaged with the first electrode terminal.
5. test macro according to claim 4, which is characterized in that the coupling bar is installed with handwheel, and described first connects
Joint chair has protection side in the side of the first tooling copper bar, wherein the coupling bar runs through the protection side and the hand
Take turns the side on the protection side being arranged in the first tooling copper bar opposite direction.
6. test macro according to claim 1, which is characterized in that the workbench has flange, second connection
Tooling is realized by the clamping positioning with the flange and is installed in the positioning of the workbench.
7. test macro according to claim 6, which is characterized in that second connecting tooling includes:
Second attachment base, second attachment base have the locating clip being engaged by clamping with the flange, and second connection
Seat tool has perforative second transit space；
Second tooling copper bar, the second tooling copper bar are fixed on second transit space, and have and second electricity
Second extension section of extreme son connection；
Second fastening unit, second fastening unit is installed in second attachment base, and mentions to the second tooling copper bar
Feed to the fastening force of the second electrode terminal.
8. test macro according to claim 7, which is characterized in that second fastening unit is one end and described second
Tooling copper bar compresses and has the free arm of rotary freedom in response to external force, wherein the free arm, which has, offsets external force simultaneously
The returning device of the fastening force is provided to the second tooling copper bar；Second attachment base, which has, supports the free arm
Bracket, also, the bracket is connect with the free arm by pin shaft.
9. test macro according to any one of claim 1 to 8, which is characterized in that the first electrode terminal and institute
The side end panel for stating battery modules is adjacent, and the second electrode terminal is located at the bottom of another side end panel of the battery modules.
10. a kind of charge-discharge test method of battery modules, which is characterized in that the test method includes:
S110, the battery modules being completed are placed on the workbench；
S120, first connecting tooling positioning is installed in the end plate and is connect with the first electrode terminal, and,
Second connecting tooling positioning is installed in the workbench and is connect with the second electrode terminal；
S130, external test device is respectively connected to first connecting tooling and second connecting tooling progress battery
The charge-discharge test of mould group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496663.XA CN110208713A (en) | 2019-06-10 | 2019-06-10 | A kind of test macro and charge-discharge test method of battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910496663.XA CN110208713A (en) | 2019-06-10 | 2019-06-10 | A kind of test macro and charge-discharge test method of battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110208713A true CN110208713A (en) | 2019-09-06 |
Family
ID=67791700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910496663.XA Pending CN110208713A (en) | 2019-06-10 | 2019-06-10 | A kind of test macro and charge-discharge test method of battery modules |
Country Status (1)
| Country | Link |
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| CN (1) | CN110208713A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901890A (en) * | 2010-07-16 | 2010-12-01 | 张天任 | Integral manual production device for 12V20AH lead acid battery electrode group soldering and discharging |
| CN105830274A (en) * | 2013-12-17 | 2016-08-03 | 住友电气工业株式会社 | Molten salt cell |
| CN207164222U (en) * | 2017-08-10 | 2018-03-30 | 深圳市锐拓新源科技有限公司 | A kind of battery bag electric performance test attachment means |
| CN207263777U (en) * | 2017-04-24 | 2018-04-20 | 宝沃汽车（中国）有限公司 | Battery charging and discharging test adaptor box |
| CN107946506A (en) * | 2017-10-27 | 2018-04-20 | 天津市捷威动力工业有限公司 | A kind of new power battery module structure |
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
| CN109212416A (en) * | 2018-08-29 | 2019-01-15 | 贵州百思特新能源材料有限公司 | A kind of lithium manganate battery test device |
-
2019
- 2019-06-10 CN CN201910496663.XA patent/CN110208713A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901890A (en) * | 2010-07-16 | 2010-12-01 | 张天任 | Integral manual production device for 12V20AH lead acid battery electrode group soldering and discharging |
| CN105830274A (en) * | 2013-12-17 | 2016-08-03 | 住友电气工业株式会社 | Molten salt cell |
| CN207263777U (en) * | 2017-04-24 | 2018-04-20 | 宝沃汽车（中国）有限公司 | Battery charging and discharging test adaptor box |
| CN207164222U (en) * | 2017-08-10 | 2018-03-30 | 深圳市锐拓新源科技有限公司 | A kind of battery bag electric performance test attachment means |
| CN107946506A (en) * | 2017-10-27 | 2018-04-20 | 天津市捷威动力工业有限公司 | A kind of new power battery module structure |
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
| CN109212416A (en) * | 2018-08-29 | 2019-01-15 | 贵州百思特新能源材料有限公司 | A kind of lithium manganate battery test device |
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Application publication date: 20190906 |