CN217931976U - Battery pack detection device - Google Patents
Battery pack detection device Download PDFInfo
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- CN217931976U CN217931976U CN202221695488.0U CN202221695488U CN217931976U CN 217931976 U CN217931976 U CN 217931976U CN 202221695488 U CN202221695488 U CN 202221695488U CN 217931976 U CN217931976 U CN 217931976U
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 11
- 238000012983 electrochemical energy storage Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a battery pack detection device, which comprises an ammeter and a plurality of connection units; one end of at least one connecting unit is connected with a first wiring terminal of the ammeter, and the other end of the connecting unit is used for connecting a first pole of a battery pack to be tested; the second connecting terminal of the ammeter is used for connecting a second pole of the battery pack; the first pole and the second pole have opposite polarities; the connecting unit which is not connected with the ammeter is independently arranged, and two ends of the connecting unit are respectively used for connecting to-be-tested electrodes of adjacent battery cores in the to-be-tested battery pack; the connecting unit comprises a first diode and a second diode which are connected in parallel in an opposite phase mode, and a first indicator light and a second indicator light are respectively connected in series on the first diode and the second diode; the conduction condition of the internal circuit of the battery pack and the arrangement sequence of the anode and the cathode of the battery core can be visually reflected, and the problem of the battery caused by the connection fault of the internal circuit is prevented.
Description
Technical Field
The utility model belongs to the technical field of the battery detects, concretely relates to battery package detection device.
Background
Along with the rapid reduction of the cost of the electrochemical energy storage technology and the gradual maturity of the commercial application in recent years, the advantages of the electrochemical energy storage technology become more obvious, the electrochemical energy storage technology starts to gradually become the mainstream of a new energy storage and increasing machine, a large cost reduction space still exists in the future, and the development prospect is wide; in electrochemical energy storage, battery PACK (combined battery or battery PACK) is the primary production link, but in battery PACK, because the arrangement mode of the battery cells is not fixed and the voltage gears are different, in the production process, whether the positive and negative electrodes and the voltage gears of the battery cells are correct and meet the standard needs to be noticed, which brings complicated procedures for detection work.
The inventor finds that the number of the electric cores in the battery pack is large, the electrode arrangement mode is unfixed, and if the arrangement mode of the electric cores in the battery pack is wrong and the electrode arrangement mode is wrong, the electric cores are not screened out, so that the whole battery pack is scrapped after welding, economic loss is caused, the unqualified battery is in danger of short circuit after being electrified, the quality safety problem is influenced, and serious consequences are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery pack detection device for preventing economic loss and safety quality problems caused by wrong arrangement of battery cells, which can visually reflect the conduction condition of the internal circuit of the battery pack, the rated voltage and the arrangement sequence of the positive and negative electrodes of the battery cells; the problem of the battery caused by the connection failure of the internal loop is prevented.
According to some embodiments, the utility model provides a battery package detection device adopts following technical scheme:
a battery pack detection device including a current meter and a plurality of connection units;
one end of at least one connecting unit is connected with a first wiring terminal of the ammeter, and the other end of the connecting unit is used for connecting a first pole of a battery pack to be tested; the second connecting terminal of the ammeter is used for connecting a second pole of the battery pack; the first pole and the second pole have opposite polarities;
the connecting unit which is not connected with the ammeter is independently arranged, and two ends of the connecting unit are respectively used for connecting to-be-tested electrodes of adjacent battery cores in the to-be-tested battery pack;
the connecting unit comprises a first diode and a second diode which are connected in parallel in an opposite phase mode, and a first indicator light and a second indicator light are respectively connected to the first diode and the second diode in series.
Furthermore, a sound generating device is connected in series between the ammeter and the connecting unit.
Further, the device also comprises a voltmeter which is connected with the ammeter in parallel.
Further, the first indicator light and the second indicator light are different in light emitting color.
The battery further comprises a groove cover plate, wherein a plurality of contact fingers for being in contact connection with the battery cell are mounted on the groove cover plate; the connecting units are connected between adjacent contact fingers, and the ammeter and the connecting units connected with the ammeter are respectively connected with the contact fingers at two ends of the groove cover plate.
Furthermore, a plurality of long holes are formed in the groove cover plate, sliding grooves are formed in the contact fingers, and the contact fingers are installed in the long holes of the groove cover plate through the sliding grooves; a first limiting plate is fixed at one end of the sliding groove, and a second limiting plate is installed at the other end of the sliding groove through a fastening bolt.
Furthermore, one end of the contact finger, which is used for being in contact with the battery cell, is connected with a contact through a spring.
Furthermore, a threaded hole is formed in the side face of the groove cover plate, and a jackscrew bolt is installed in the threaded hole.
Furthermore, an air bag is fixed inside the side surface of the groove cover plate.
Furthermore, an electromagnetic block is fixed inside the side surface of the groove cover plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses well ampere meter, all linkage units and all electric cores in the battery package that awaits measuring constitute the return circuit, through the ampere meter in the return circuit, can detect the return circuit electric current of whole battery package to realize detecting the return circuit condition of switching on; meanwhile, in the connecting unit, the first diode and the second diode which are connected in parallel between the positive electrode and the negative electrode of the battery core can detect the current flow direction between every two adjacent battery cores due to opposite directions, and directly display the current flow direction through the indicator lamp, and can detect the electrode setting error caused by the battery core arrangement mode error according to the current flow direction.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention suitable for detecting two rows of battery cells;
fig. 3 is a schematic structural diagram of the present invention when the detection cells are arranged in three rows;
fig. 4 is a three-dimensional schematic view of the usage state of the groove cover plate of the present invention;
FIG. 5 is a front view of the groove cover plate of the present invention in use;
fig. 6 is a plan view of the groove cover plate of the present invention in use;
fig. 7 is a test chart of the usage status of the groove cover plate of the present invention;
fig. 8 is a schematic view of the interior of the groove cover plate of the present invention;
fig. 9 is a three-dimensional schematic view of a finger of the present invention;
fig. 10 is a front view of the contact finger of the present invention;
fig. 11 is a bottom view of the contact finger of the present invention;
wherein: 1. ammeter, 2, connecting unit, 3, sound generating mechanism, 4, voltmeter, 5, electric core, 6, recess apron, 601, slot hole, 602, screw hole, 603, jackscrew bolt, 7, touch finger, 701, fastening bolt, 702, first limiting plate, 703, spout, 704, second limiting plate, 705, spring, 706, guide bar, 707, contact, 8, fuse, 9, resistance.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1:
as a special commodity, the electric power cannot be directly stored, the power generation, the power transmission, the power distribution and the power utilization are synchronously carried out, the real-time balance is achieved, and no intermediate storage link exists. This has an impact on the development of the power industry. Secondly, as the power generation capacity of the renewable energy sources is increased, the difficulty of the power grid in aspects of transmission and distribution, fluctuation regulation and control and the like is increased, and the problems of instability and intermittence caused by the renewable energy sources need to form a controllable and schedulable power grid operation mode depending on energy storage. The appearance and the wide application of energy storage realize the transfer of electric energy in time, thereby profoundly changing the production and consumption modes of electric power and being a revolutionary breakthrough of the electric power market. The energy storage can be classified into mechanical energy storage, electrical energy storage, electrochemical energy storage, thermal energy storage, and chemical energy storage, which refer to various secondary battery energy storage represented by lithium batteries. Compared with mechanical energy storage such as pumped storage and the like, electrochemical energy storage is less influenced by factors such as terrain and the like, and can be flexibly applied to a power generation side, a power transmission and distribution side and a power utilization side. Compared with electromagnetic energy storage, the electrochemical energy storage technology is more mature, the cost is lower, and the commercial application range is wider; in the electrochemical energy storage, the battery PACK is a primary production link, but in the battery PACK, because the arrangement mode of the battery cells is not fixed and the voltage gears are different, in the production process, whether the positive and negative electrodes and the voltage gears of the battery cells are correct and meet the standard needs to be noticed, so that complicated procedures are brought to the detection work.
In order to solve the problems of electrode setting errors and the like caused by wrong arrangement of battery cells in a battery pack, the embodiment provides a battery pack detection device, as shown in fig. 1, the battery pack detection device includes an ammeter 1 and a plurality of connection units 2;
one end of at least one connecting unit is connected with a first connecting terminal of the ammeter 1 through a wire, and the other end of the connecting unit is used for connecting a first pole of a battery pack to be tested; the second connecting terminal of the ammeter 1 is used for connecting a second pole of the battery pack; the first pole and the second pole have opposite polarities;
the connection unit 2 that is not connected to the ammeter 1 is separately arranged, and both ends of the connection unit are respectively used for connecting to-be-tested poles of adjacent electric cores 5 in the to-be-tested battery pack, where the to-be-tested poles may be a first pole or a second pole of the electric cores 5, where it is to be noted that, when the arrangement of the electric cores in the to-be-tested battery pack is correct, both ends of the separately arranged connection unit 2 are respectively connected to the first pole and the second pole, and if the arrangement of the electric cores in the to-be-tested battery pack is wrong, both ends of the separately arranged connection unit 2 may be simultaneously connected to the first pole or the second pole having the same polarity;
the connection unit 2 comprises a first diode 201 and a second diode 202 which are connected in parallel in an anti-phase manner, and a first indicator lamp 203 and a second indicator lamp 204 are respectively connected in series on the first diode 201 and the second diode 202.
It can be understood that during detection, the positive and negative wiring terminals of the ammeter are connected with the positive and negative electrodes of the battery pack in a matching manner, so that the normal use of the ammeter is ensured.
In this embodiment, the ammeter 1, all the connection units 2, and all the electric cores in the battery pack to be tested form a loop, and the loop current of the whole battery pack can be detected through the ammeter in the loop; in the connection unit, the first diode 201 and the second diode 202 connected in parallel between the positive electrode and the negative electrode of the battery core can detect the current flow direction between every two adjacent battery cores due to opposite directions, and directly display the current flow direction through the indicator lamp, and can detect the electrode setting error caused by the battery core arrangement mode error according to the current flow direction.
It is understood that the first diode 201 and the second diode 202 are opposite in direction, and by utilizing the unidirectional conductivity of the diodes, when the diodes are conducted, the indicator lights connected in series with the diodes are on, so that the current flow direction is obtained.
In other embodiments, in the battery pack detection device, a sound generating device 3 may be further connected in series between the ammeter 1 and the connection unit 2, the sound generating device 3 may be a loudspeaker, and when the battery pack detection device is powered on for detection, the sound generating device 3 generates a warning to remind a tester to start checking or recording a test; the conduction condition of the internal circuit of the battery pack is judged through the sound of the horn, misjudgment caused by inattentive vision can be prevented through a sound detection mode, and the method is more convenient, rapid and accurate.
In other embodiments, the battery pack detection apparatus may further include a voltmeter 4 connected in parallel to the ammeter 1, and the loop voltage of the battery pack may be directly read from the voltmeter 4 to detect the voltage of the battery pack to be detected.
It will be appreciated that the maximum range of the voltmeter 4 is selected according to the charge level of the battery pack.
In this embodiment, the first indicator light 203 and the second indicator light 204 have different light emitting colors, and the first indicator light 203 may be a green indicator light, and the second indicator light 204 may be a red indicator light; specifically, for the detection of the arrangement of the positive and negative electrodes of the battery cell inside the battery pack, the arrangement of the positive and negative electrodes of the internal battery cell can be determined by connecting the unit 2 between the positive and negative electrodes of the battery cell 5, that is, connecting two sets of diodes in parallel between the positive and negative electrodes of the battery cell 5, and setting the indicator lights of the positive arrangement circuit to be red and the indicator lights of the negative arrangement circuit to be green by using the unidirectional conductivity of the diodes, by using the red and green different colors, and by using the colors of the indicator lights, the arrangement of the positive and negative electrodes of the internal battery cell can be determined.
Because the battery cells 5 in the battery pack have different arrangement modes, according to this situation, a plurality of corresponding circuits can be designed, for example, three circuits are shown in fig. 1, fig. 2, and fig. 3; in other embodiments, as shown in fig. 4 to 8, in order to solve the problem of connection between the device and the battery cell in the battery pack, the battery pack detection device may further include a groove cover plate 6, where a plurality of contact fingers 7 for contact connection with the battery cell 5 are mounted on the groove cover plate 6; the connecting units 2 are connected between the adjacent contact fingers 7, and the ammeter 1 and the connecting units 2 connected with the ammeter are respectively connected with the contact fingers at two ends of the groove cover plate 6.
It can be understood that the size of the groove cover plate 6 corresponds to the size of the battery pack to be detected, and the number and the arrangement mode of the contact fingers 7 can correspond to the arrangement mode and the number of all the battery cells 5 in the battery pack to be detected; after two adjacent contact fingers 7 are connected with the positive and negative electrodes of the adjacent electric core 5, the connection between the two ends of the connection unit 2 and the positive and negative electrodes of the electric core 5 is realized; after the ammeter 1 and the connecting units 2 connected with the ammeter 1 are respectively connected with the contact fingers at the two ends of the groove cover plate 6, the purpose that the ammeter 1, all the connecting units 2 and all the electric cores 5 in the battery pack to be tested form a loop is achieved.
A plurality of long holes 601 are formed in the groove cover plate 6, sliding grooves 703 are formed in the contact fingers 7, and the contact fingers 7 are mounted in the long holes of the groove cover plate 6 through the sliding grooves 703; a second limiting plate 704 is fixed at one end of the chute 703, and a first limiting plate 702 is installed at the other end of the chute through a fastening bolt 701; it can be understood that a thread is formed on the contact finger 7, or a bolt is directly adopted as a part of the contact finger 7, the second limiting plate 704 is fixed on the bolt, the first limiting plate 702 can directly adopt an annular gasket, or the first limiting plate 702 and the fastening bolt 701 are fixed into a whole, the fastening bolt 701 can be screwed out on the bolt, and a space between the second limiting plate 704 and the first limiting plate 702 is the chute 703.
It can be understood that the elongated hole 601 may include elongated holes in the length direction and the width direction, and the contact finger 7 may be adjusted according to the arrangement of the battery cells 5; after adjustment, the fastening bolt 703 at the upper part is tightened, and the first limit plate 702 and the second limit plate 704 are clamped on the two side edges of the long hole, so that the contact finger 7 is fixed on the long hole 601.
One end of the contact finger 7, which is used for being in contact with the battery cell 5, is connected with a contact 707 through a spring 705; the contact 707 and the cell contact surface with different thicknesses are kept good by the pressure of the spring 705; the spring 705 may be fixed in a manner that two ends of the spring 705 are respectively welded to the second limiting plate 704 and the contact 707, a guide rod 706 may be further disposed in the middle of the spring 705, and the guide rod 706 may be welded to the second limiting plate 703 to ensure that the spring 705 is not bent; it will be appreciated that the length of the guide rod 706 is less than the length of the spring 705 when it is normally extended, to ensure movement of the contact 707.
A threaded hole 602 is formed in the side surface of the groove cover plate 6, and a jackscrew bolt 603 is installed in the threaded hole; through screwing up jackscrew bolt 603 makes its top tighten the side of the battery package 8 that awaits measuring, can realize recess apron 6 is at the fixed purpose of the battery package 8 upside that awaits measuring.
In other embodiments, in order to fix the groove cover plate 6 on the upper side of the battery pack 8 to be tested, an air bag may be fixed inside the side surface of the groove cover plate 6 by gluing or other conventional fixing methods, and the battery pack 8 to be tested is clamped by inflating the air bag.
In other embodiments, in order to fix the groove cover plate 6 on the upper side of the battery pack 8 to be tested, an electromagnetic block can be fixed inside the side surface of the groove cover plate 6 in a conventional fixing mode such as bolt connection, and the electromagnetic block is quickly adsorbed on the metal side surface of the battery pack 8 to be tested.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The battery pack detection device is characterized by comprising a current meter and a plurality of connection units;
one end of at least one connecting unit is connected with a first wiring terminal of the ammeter, and the other end of the connecting unit is used for connecting a first pole of a battery pack to be tested; the second connecting terminal of the ammeter is used for connecting a second pole of the battery pack; the first pole and the second pole have opposite polarities;
the connecting unit which is not connected with the ammeter is independently arranged, and two ends of the connecting unit are respectively used for connecting to-be-tested electrodes of adjacent battery cores in the to-be-tested battery pack;
the connecting unit comprises a first diode and a second diode which are connected in parallel in an opposite phase mode, and a first indicator light and a second indicator light are respectively connected to the first diode and the second diode in series.
2. The battery pack detection device according to claim 1, wherein a sound generating device is connected in series between the ammeter and the connection unit.
3. The battery pack detection apparatus of claim 1, further comprising a voltmeter connected in parallel with the ammeter.
4. The battery pack detection apparatus according to claim 1, wherein the first indicator light and the second indicator light are different in light emission color.
5. The battery pack detection device of claim 1, further comprising a recessed cover plate, wherein a plurality of contact fingers for contact connection with the battery cells are mounted on the recessed cover plate; the connecting units are connected between adjacent contact fingers, and the ammeter and the connecting units connected with the ammeter are respectively connected with the contact fingers at two ends of the groove cover plate.
6. The battery pack detection device according to claim 5, wherein the groove cover plate is provided with a plurality of elongated holes, the contact finger is provided with a sliding slot, and the contact finger is mounted in the elongated hole of the groove cover plate through the sliding slot; a first limiting plate is fixed at one end of the sliding groove, and a second limiting plate is installed at the other end of the sliding groove through a fastening bolt.
7. The battery pack detection device of claim 6, wherein one end of the contact finger for contacting the battery cell is connected with a contact through a spring.
8. The battery pack detection device of claim 5, wherein a threaded hole is formed in a side surface of the groove cover plate, and a jackscrew bolt is installed in the threaded hole.
9. The battery pack detection apparatus of claim 5, wherein an air pack is fixed inside the side surface of the groove cover plate.
10. The battery pack testing device of claim 5, wherein an electromagnet block is fixed inside a side surface of the groove cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695488.0U CN217931976U (en) | 2022-07-01 | 2022-07-01 | Battery pack detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695488.0U CN217931976U (en) | 2022-07-01 | 2022-07-01 | Battery pack detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217931976U true CN217931976U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221695488.0U Active CN217931976U (en) | 2022-07-01 | 2022-07-01 | Battery pack detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217931976U (en) |
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2022
- 2022-07-01 CN CN202221695488.0U patent/CN217931976U/en active Active
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| GR01 | Patent grant | ||
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Address after: No. 717, Huaihe West Road, Huangdao District, Qingdao City, Shandong Province 266000 Patentee after: Qingdao Yihe Energy Storage Technology Co.,Ltd. Address before: No. 717, Huaihe West Road, Huangdao District, Qingdao City, Shandong Province 266000 Patentee before: Qingdao Yihe Intelligent Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |