CN206074787U - A kind of device for detecting solder design quality between lithium battery busbar and battery core pole - Google Patents
A kind of device for detecting solder design quality between lithium battery busbar and battery core pole Download PDFInfo
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- CN206074787U CN206074787U CN201621021980.4U CN201621021980U CN206074787U CN 206074787 U CN206074787 U CN 206074787U CN 201621021980 U CN201621021980 U CN 201621021980U CN 206074787 U CN206074787 U CN 206074787U
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- busbar
- battery core
- core pole
- hall probe
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Abstract
This utility model is related to a kind of device for detecting solder design quality between lithium battery busbar and battery core pole, is related to solder design quality testing field.Purpose is to detect the welding quality between battery core pole and busbar, it is to avoid the phenomenon of rosin joint occur.The device includes hall probe and Gauss instrument, the corresponding hall probe of each welded seam between battery core pole and busbar, and the hall probe detects the magnetic induction of weld seam, and hall probe is connected with Gauss instrument by probe wire.This utility model places hall probe by the commissure between battery core pole and busbar, hall probe detects the magnetic field data of commissure as sensing element, and detection data is sent to into the magnetic induction that Gauss instrument is analyzed process acquisition commissure, the quality of connection of weld seam would know that according to the size of commissure magnetic induction, so as to avoid the appearance of rosin joint situation.
Description
Technical field
This utility model is related to solder design quality testing field.
Background technology
Power source in new-energy automobile is lithium battery, lithium battery have can force density it is high, environmental friendliness etc. is a little.Typically
The structure of electrokinetic cell is that battery core is combined as module, then by modular arrangements in battery bag, battery core is combined as module
During, needing to couple together pole between battery core with busbar, constitute a battery modules, general method of attachment is Laser Welding
Connect.Battery core is being combined as in the production process of module, when laser welding busbar is with battery core pole, solder joint is sometimes being occurred and is subtracted
Few, welding quality is reduced, and causes the phenomenon of rosin joint.Although the probability that rosin joint occurs is very little, once there is rosin joint situation
Reduce can module global voltage, battery performance reduces even individual cases and can cause module internal short circuit that accident occurs.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of for detecting between lithium battery busbar and battery core pole
The device of solder design quality, for detecting the welding quality between battery core pole and busbar, it is to avoid the phenomenon of rosin joint occur.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：It is a kind of to be used to detect lithium battery busbar and battery core
The device of solder design quality between pole, the device include hall probe and Gauss instrument, each between battery core pole and busbar
Individual welded seam corresponds to a hall probe, and the hall probe detects the magnetic induction of weld seam, and hall probe is by visiting
Head wire is connected with Gauss instrument.
The beneficial effects of the utility model are：This utility model is placed by the commissure between battery core pole and busbar
Hall probe, hall probe detect the magnetic field data of commissure as sensing element, and detection data is sent to Gauss instrument enters
Row analyzing and processing obtains the magnetic induction of commissure, would know that the connection of weld seam according to the size of commissure magnetic induction
Quality, so as to avoid the appearance of rosin joint situation, meanwhile, one hall probe is set in each commissure and is detected, it is to avoid
The situation of missing inspection occurs.
On the basis of above-mentioned technical proposal, this utility model can also do following improvement.
Further, described device also includes：Support and installing rack,
Support is door frame shaped structure, and its bottom is erected at the both sides of battery core,
The top of installing rack is fixedly connected with cradle top,
Multiple hall probes, quantity and busbar and the weld seam number of battery core pole of the hall probe are fixed with installing rack
Amount is identical, and the sensor on hall probe is located at the surface of weld seam.
Using the beneficial effect of above-mentioned further scheme it is：The fixation of support and installing rack, makes hall probe more
The stable surface for being placed on weld seam, is more beneficial for detection.
Further, the installing rack includes cross and placement plate,
The center of the cross is fixedly connected with cradle top,
Four drift angles of four end correspondence battery cores of cross, wherein two ends of the cross of both sides corresponding with busbar
The placement plate being parallel to each other is fixed between portion,
What multiple hall probes were arranged side by side is fixed on the placement plate.
Further, the placement plate is parallel with busbar.
Using the beneficial effect of above-mentioned further scheme it is：Place plate parallel with busbar, make between hall probe and weld seam
Proper alignment.
Further, described two width for placing the distance between plate more than battery core.
Using the beneficial effect of above-mentioned further scheme it is：Avoid battery core and place that scratching occurs between plate, affect detection
Process.
Further, described device also includes elevating screw,
What the elevating screw was vertical the be threaded in top of support, the bottom of the elevating screw pass through support and with
Installing rack is fixedly connected, and installing rack realizes the movement on vertical direction by elevating screw.
Using the beneficial effect of above-mentioned further scheme it is：By the lift action of elevating screw, peace can be conveniently adjusted
The hanging position shelved, and then the distance between hall probe and weld seam are adjusted, meanwhile, the weld seam on to next battery core enters
During row detection, it is also possible to which convenient carrying out is changed.
Further, described device also includes workbench, and the battery core for being welded with busbar is placed on the workbench.
Using the beneficial effect of above-mentioned further scheme it is：Be conducive to the stability of battery core in detection process.
Description of the drawings
Fig. 1 is the device for detecting solder design quality between lithium battery busbar and battery core pole described in the utility model
Structural representation；
Fig. 2 is the overall corresponding relation figure of hall probe described in the utility model 1 and weld seam；
Fig. 3 is the local corresponding relation figure of hall probe described in the utility model 1 and weld seam.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, hall probe, 2, support, 3, installing rack, 4, cross, 5, place plate, 6, elevating screw, 7, workbench.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figure 1, one group of module is connected into by busbar between each battery core, by swashing between battery core pole and busbar
Photocoagulation method links together, and forms weld seam, and the present embodiment proposes a kind of for detecting lithium battery busbar and battery core pole
Between solder design quality device, the device includes hall probe 1 and Gauss instrument, each weldering between battery core pole and busbar
Welding seam corresponds to a hall probe 1, and the hall probe 1 detects the magnetic induction of weld seam, and hall probe 1 is by probe
Wire is connected with Gauss instrument.
Hall probe 1 is placed by the commissure between battery core pole and busbar, hall probe 1 is examined as sensing element
Survey commissure magnetic field data, and by detection data be sent to Gauss instrument be analyzed process obtain commissure magnetic induction it is strong
Degree, would know that the quality of connection of weld seam according to the size of commissure magnetic induction, so as to avoid the appearance of rosin joint situation, together
When, one hall probe 1 is set in each commissure and is detected, it is to avoid the situation of missing inspection occurs.
According to biot savart's law, in the case that conductor has electric current to pass through, when electric current changes, around conductor
Magnetic field can also change.I.e.
Due to the battery core being soldered be can be with the lithium battery of discharge and recharge, so being connected battery core using busbar is connected between battery core
After constituting module together, external busbar can be powered, after energization, battery core, busbar and attachment weld have electric current to pass through.
When welding procedure is normal, during weld is accepted, it is I by the electric current of weld seam0, take near weld seam and be easier measurement
A point, the such as surface in the middle of weld seam, magnetic induction herein is B0.If welding procedure appearance is unstable, solder joint is not
When continuous or solder joint is reduced, will be changed as I by the electric current around weld seamx, while with the magnetic induction of position
Can change as Bx.As pole, busbar and welding material may slightly have difference in actual production, so assert weld seam
Qualified magnetic induction numerical intervals determined by after repeatedly measuring.
Gauss instrument can carry out magnetic field based on Hall effect principle with the magnetic induction of certain point in measurement space, Gauss instrument
Measurement, using Hall element as sensing element.Hall element is arranged in hall probe 1, and hall probe 1 is prevented institute
Position to be tested, you can show the magnetic induction of measured position in Gauss instrument.
Each battery core has two poles, and each pole will be connected with busbar, so in the mould of battery core composition, having
Multiple positions for needing welding.In order to the magnetic induction around each weld seam in batch detection module, this enforcement
Example proposes following apparatus structure：
Described device includes：Support 2 and installing rack 3,
Support 2 is door frame shaped structure, and its bottom is erected at the both sides of battery core,
The top of installing rack 3 is fixedly connected with the top of support 2,
Multiple hall probes 1, the quantity of the hall probe 1 and the weldering of busbar and battery core pole are fixed with installing rack 3
Seam quantity is identical, and the sensor on hall probe 1 is located at the surface of weld seam.
The installing rack 3 includes cross 4 and placement plate 5,
The center of the cross 4 is fixedly connected with the top of support 2,
Four drift angles of four end correspondence battery cores of cross 4, wherein 4 two, the cross of both sides corresponding with busbar
The placement plate 5 being parallel to each other is fixed between end,
What multiple hall probes 1 were arranged side by side is fixed on the placement plate 5.
The placement plate 5 is parallel with busbar.
Described two width for placing the distance between plate 5 more than battery core.
Described device also includes elevating screw 6,
What the elevating screw 6 was vertical is threaded in the top of support (2), and the bottom of the elevating screw 6 passes through props up
Frame 2 is simultaneously fixedly connected with installing rack 3, and installing rack 3 realizes the movement on vertical direction by elevating screw 6.
Described device also includes workbench 7, and the workbench 7 places the battery core for being welded with busbar.
Module is placed on the table 7 by the device when reality is detected to weld seam, then will be the connection of external busbar outer
Portion's charge power supply or load, make state of the module in being powered, and then control elevating screw 6 and move down, when hall probe 1
Stop declining when the Hall element of front end is close to above Weld pipe mill, now, the magnetic induction of each test of hall probe 1 is strong
Degree is displayed on Gauss instrument, if being shown as B0, then it is assumed that welding quality is qualified, if display registration is Bx, then prove to go out during welding
Welding is showed discontinuously, the situation that solder joint is reduced occurs in that rosin joint situation, then just the weld seam to going wrong carries out emphasis point
Analysis, carries out lower step process.
In the detection, if workbench 7 is placed in streamline, elevating screw 6 adopts Electronic control, adjusts 7 level of workbench
Motion and the time of staying, and the up and down motion time of elevating screw 6 is adjusted, can be by the device and the production stream of production process
Waterline combines, after module group assembling has been produced by carry out welding quality inspection, improve detection efficiency.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
1. a kind of device for detecting solder design quality between lithium battery busbar and battery core pole, it is characterised in that the device
Including hall probe (1) and Gauss instrument, the corresponding hall probe of each welded seam between battery core pole and busbar
(1), the hall probe (1) detects the magnetic induction of weld seam, and hall probe (1) is connected with Gauss instrument by probe wire.
2. a kind of dress for detecting solder design quality between lithium battery busbar and battery core pole according to claim 1
Put, it is characterised in that the device also includes：Support (2) and installing rack (3),
Support (2) is door frame shaped structure, and its bottom is erected at the both sides of battery core,
The top of installing rack (3) is fixedly connected with the top of support (2),
Multiple hall probes (1) are fixed with installing rack (3), the quantity and busbar and battery core pole of the hall probe (1)
Weld seam quantity is identical, and the sensor on hall probe (1) is located at the surface of weld seam.
3. a kind of dress for detecting solder design quality between lithium battery busbar and battery core pole according to claim 2
Put, it is characterised in that the installing rack (3) includes cross (4), placement plate (5),
The center of the cross (4) is fixedly connected with the top of support (2),
Four drift angles of four end correspondence battery cores of cross (4), wherein (4) two, the cross of both sides corresponding with busbar
The placement plate (5) being parallel to each other is fixed between end,
What multiple hall probes (1) were arranged side by side is fixed on placement plate (5).
4. a kind of dress for detecting solder design quality between lithium battery busbar and battery core pole according to claim 3
Put, it is characterised in that placement plate (5) is parallel with busbar.
5. a kind of dress for detecting solder design quality between lithium battery busbar and battery core pole according to claim 4
Put, it is characterised in that described two width for placing the distance between plate (5) more than battery core.
6. the one kind according to any one of claim 2 to 5 is used to detect solder design between lithium battery busbar and battery core pole
The device of quality, it is characterised in that the device also includes elevating screw (6),
The vertical top for being threaded in support (2) of the elevating screw (6), the bottom of the elevating screw (6) passes through props up
Frame (2) is simultaneously fixedly connected with installing rack (3), and installing rack (3) realizes the movement on vertical direction by elevating screw (6).
7. a kind of dress for detecting solder design quality between lithium battery busbar and battery core pole according to claim 6
Put, it is characterised in that the device also includes workbench (7), on the workbench (7), place the battery core for being welded with busbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021980.4U CN206074787U (en) | 2016-08-30 | 2016-08-30 | A kind of device for detecting solder design quality between lithium battery busbar and battery core pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021980.4U CN206074787U (en) | 2016-08-30 | 2016-08-30 | A kind of device for detecting solder design quality between lithium battery busbar and battery core pole |
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| CN206074787U true CN206074787U (en) | 2017-04-05 |
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| CN201621021980.4U Active CN206074787U (en) | 2016-08-30 | 2016-08-30 | A kind of device for detecting solder design quality between lithium battery busbar and battery core pole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884720A (en) * | 2017-11-09 | 2018-04-06 | 常州普莱德新能源电池科技有限公司 | Detection method and detection means for battery modules leak inductance |
| CN109579718A (en) * | 2019-01-09 | 2019-04-05 | 广州市顶丰自动化设备有限公司 | Detection method, device, computer equipment and the storage medium of weld seam parameter |
| CN111856142A (en) * | 2020-09-01 | 2020-10-30 | 厦门海辰新能源科技有限公司 | Device for detecting insufficient solder of power battery module and detection method thereof |
| CN113497309A (en) * | 2021-08-02 | 2021-10-12 | 安徽和鼎机电设备有限公司 | Lithium battery electrode series or parallel assembling and welding device |
-
2016
- 2016-08-30 CN CN201621021980.4U patent/CN206074787U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884720A (en) * | 2017-11-09 | 2018-04-06 | 常州普莱德新能源电池科技有限公司 | Detection method and detection means for battery modules leak inductance |
| CN107884720B (en) * | 2017-11-09 | 2020-05-08 | 常州普莱德新能源电池科技有限公司 | Detection method and detection device for battery module missing welding detection |
| CN109579718A (en) * | 2019-01-09 | 2019-04-05 | 广州市顶丰自动化设备有限公司 | Detection method, device, computer equipment and the storage medium of weld seam parameter |
| CN111856142A (en) * | 2020-09-01 | 2020-10-30 | 厦门海辰新能源科技有限公司 | Device for detecting insufficient solder of power battery module and detection method thereof |
| CN111856142B (en) * | 2020-09-01 | 2024-06-04 | 厦门海辰储能科技股份有限公司 | Device and method for detecting false welding of power battery module |
| CN113497309A (en) * | 2021-08-02 | 2021-10-12 | 安徽和鼎机电设备有限公司 | Lithium battery electrode series or parallel assembling and welding device |
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