CN215731866U - Detection tool for pre-charging formation of battery - Google Patents
Detection tool for pre-charging formation of battery Download PDFInfo
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- CN215731866U CN215731866U CN202122084335.4U CN202122084335U CN215731866U CN 215731866 U CN215731866 U CN 215731866U CN 202122084335 U CN202122084335 U CN 202122084335U CN 215731866 U CN215731866 U CN 215731866U
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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
Abstract
The utility model provides a detection tool for battery pre-charging formation, which comprises a detection platform and a plurality of battery clamping units arranged on the detection platform. The battery clamping unit comprises two pressure plates capable of moving in a guiding mode, and the battery is clamped between the two pressure plates. At least one end of the whole row of battery clamping units is connected with a jacking unit, and the jacking unit comprises a stress plate and an elastic connecting part connected between the stress plate and the pressing plate; the outer side of the stress plate is connected with a pressure mechanism. Each pressure plate moves towards the direction of the elastic connecting part due to the expansion of the battery, so that the elastic connecting part can be driven to contract; the top pressure unit is provided with a pressure sensor for detecting the pressure applied by the pressure applying mechanism; the pressure plate connected with the elastic connecting part is provided with a displacement sensor. The detection tool for the battery pre-charging formation can detect the expansion displacement change of each battery in the formation process and the clamping pressure condition borne by each battery so as to acquire the relevant data of the battery.
Description
Technical Field
The utility model relates to the technical field of battery detection, in particular to a detection tool for battery pre-charging formation.
Background
The lithium ion battery is a novel high-energy battery and mainly comprises a positive electrode material, a negative electrode material, a diaphragm and electrolyte. The commonly used lithium ion batteries are mainly divided into three main categories, namely square, cylindrical and soft packages. The square and cylindrical lithium ion battery shells are mainly made of hard shells of aluminum alloy, stainless steel and the like, and the soft package lithium ion battery shell is made of an aluminum plastic film.
The performance of the lithium ion battery is very important to the process quality of the battery, the lithium ion battery is firstly manufactured in an electrode section and an assembly section, and finally, the most critical step, namely pre-charging component capacity, is required to be carried out, and then the finished battery can be obtained. The pre-charging formation has the function of activating the battery, the negative electrode material and the electrolyte react on a solid-liquid interface to form a Solid Electrolyte Interface (SEI) film covering the surface of the electrode material, and therefore the comprehensive performances of the battery such as charge and discharge, self-discharge, storage and the like can be improved. The capacity grading has the main function of enabling the performance of the battery core to tend to be stable through repeated charging and discharging, and meanwhile, obtaining key performance parameters of the battery.
No matter what kind of electric core manufacture craft, its electric core utmost point ear all can have both ends and goes out the different forms of utmost point ear and one end goes out utmost point ear. Accordingly, the terminal of the battery may be present at one or both ends. In the process of pre-charging and grading the battery, the battery needs to be clamped in the tool by using the tool, and the structure of the tool needs to be designed according to the distribution condition of the poles. The existing tooling needs to be separately provided with different tooling aiming at different batteries with lugs at two ends and lugs at one end.
In addition, the existing pre-charging and capacity-dividing tool is various in types, but the tool is too simple in design, can only be used for simply charging and dividing the battery, and applying fixed pressure to the battery, and cannot collect the conditions of surface pressure and expansion change of the battery along with the charging and discharging processes in the pre-charging and capacity-dividing processes.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a detection tool for battery pre-charging formation, so as to detect pressure and expansion displacement changes of two sides of a battery during the pre-charging formation process.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a detection tool for battery pre-charging formation comprises a detection platform and a plurality of battery clamping units arranged on the detection platform; the battery clamping unit comprises two pressing plates which can be guided to move on the detection platform, and the battery is clamped between the two pressing plates; two adjacent battery clamping units are connected in an abutting mode, and at least one end of each battery clamping unit in the array is connected with a jacking unit; the pressing plates which are positioned at the end parts of the battery clamping units in the whole row and are not connected with the jacking units are limited on the detection platform;
the jacking unit comprises a stress plate and an elastic connecting part connected between the stress plate and the pressing plate; the outer side of the stress plate is connected with a pressure applying mechanism; due to the expansion of the battery, each pressing plate moves towards the elastic connecting part, so that the elastic connecting part can be driven to contract;
the top pressure unit is provided with a pressure sensor for detecting the pressure applied by the pressure applying mechanism; and the pressing plate connected with the elastic connecting part is provided with a displacement sensor.
Furthermore, the elastic connecting part comprises a guide post which can be guided to move on the stress plate, a force application plate which is fixedly connected with one end of the guide post, and a pressure spring which is sleeved on the guide post and clamped between the stress plate and the force application plate; the force application plate is connected with the pressing plate connected with the jacking unit in an abutting mode or is integrally constructed.
Furthermore, the guide posts and the pressure springs are arranged on the stress plate at intervals.
Furthermore, two groups of jacking units are arranged between the pressing mechanism and the battery clamping unit at intervals; the force application plate of the top pressing unit on the outer side is independently arranged; the force application plate of the jacking unit at the inner side and the pressing plate connected with the jacking unit are constructed into a whole; the pressure sensor is arranged between the two jacking units.
Further, the pressure applying mechanism comprises a top plate fixedly arranged on the detection platform and a jackscrew in threaded connection with the middle of the top plate; the end part of the jackscrew is abutted against the stress plate.
Furthermore, a gasket is arranged between the jackscrew and the stress plate.
Furthermore, the detection platform is provided with a guide rod, and the stress plate and the pressing plates can be arranged on the guide rod in a guiding and moving manner.
Further, the stress plate and each pressure plate are all configured to be rectangular with the same size; the guide rods are four in parallel arrangement and penetrate through the stress plate and four corners of each pressure plate respectively.
Furthermore, a spring is sleeved on each guide rod between the two pressing plates of the battery clamping unit; each spring is clamped between the two pressure plates.
Furthermore, a plurality of battery clamping units are arranged in a line on the detection platform; and the two ends of the battery clamping units in the array are respectively provided with the jacking unit and the pressing mechanism.
Compared with the prior art, the utility model has the following advantages:
according to the detection tool for the pre-charging formation of the battery, the battery clamping unit adopts two pressure plates capable of moving in a guiding manner to clamp the battery, so that a plurality of batteries can be arranged in a line, and the pre-charging formation and expansion conditions of the plurality of batteries can be synchronously detected; the top pressing units are arranged at the end parts of the battery clamping units in the whole row, the pressure set by the top pressing units can be given by the pressing mechanisms, and is transmitted to each battery through the top pressing units and each pressing plate, so that each battery is subjected to a pre-charging process under the working condition of the set clamping pressure; the top pressing unit is provided with an elastic connecting part, and the surface expansion of each battery in the pre-charging process can be transferred to the elastic connecting part through each pressing plate; the displacement sensor is arranged on the pressing plate connected with the elastic connecting part, and the pressure sensor is arranged on the jacking unit, so that the expansion displacement change of each battery in the formation process and the clamping pressure condition borne by each battery can be detected to obtain the relevant data of the battery, and the optimization and improvement of the pre-charging and grading process and the manufacturing process of the battery are facilitated.
Meanwhile, the structure of the guide post and the pressure spring is adopted, so that the distance between the force application plate and the force bearing plate can be elastically changed to reflect the accumulated displacement condition of the expansion change of each battery; the structure is simple and effective, the pressure transmission performance is good, and the pressure from the pressure applying mechanism can be well transmitted to each battery clamping unit.
In addition, a plurality of groups of guide columns and pressure springs are arranged between the stress plate and the force application plate at intervals, so that the force transmission between the stress plate and the force application plate is more balanced, the pressure from the pressure application mechanism is generally applied to the middle part of the stress plate, the pressure is uniformly distributed on the force application plate or the pressure plate through the pressure springs, the condition that the force application plate or the pressure plate is inclined and deviated due to uneven stress can be effectively reduced, the whole surface of the battery is subjected to balanced clamping force, and the accuracy of the detected displacement is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate embodiments of the utility model and together with the description serve to explain the utility model, and the description is given by way of example only and without limitation to the terms of relative positions. In the drawings:
fig. 1 is a schematic view of an overall structure of a detection tool for battery pre-charge formation according to an embodiment of the present invention under a working condition of loading a battery with an outlet terminal at one end;
FIG. 2 is a schematic view of an overall structure of the detection tool in a working condition of loading a battery with two terminal posts;
FIG. 3 is a partial enlarged view of portion A of FIG. 2;
fig. 4 is a schematic perspective view of a pressing unit and a pressing mechanism thereof according to an embodiment of the present invention;
description of reference numerals:
10. a battery; 100. a pole column;
200. a top plate; 201. carrying out top thread; 202. a gasket; 203. locking a nut;
30. a stress plate; 31. an elastic connection portion; 310. a force application plate; 311. a guide post; 312. a pressure spring;
400. pressing a plate; 401. a spring;
5. a guide bar; 6. a pressure sensor; 7. and a displacement sensor.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The utility model relates to a detection tool for battery pre-charging formation, which can detect expansion displacement change of each battery in the formation process and the clamping pressure condition borne by each battery so as to obtain relevant data of the battery, and is beneficial to optimizing and improving the battery pre-charging capacity-grading flow and the manufacturing process.
In general, the inspection tool comprises an inspection platform and a plurality of battery clamping units arranged on the inspection platform. The battery clamping unit comprises two pressing plates which can be guided to move on the detection platform, and the battery is clamped between the two pressing plates; two adjacent battery clamping units are connected in an abutting mode, and at least one end of each battery clamping unit in the whole row is connected with a jacking unit. Meanwhile, the pressing plate which is positioned at the end part of the whole row of battery clamping units and is not connected with the jacking unit is limited on the detection platform.
The jacking unit comprises a stress plate and an elastic connecting part connected between the stress plate and the pressing plate; the outer side of the stress plate is connected with a pressure mechanism. Each pressure plate moves towards the direction of the elastic connecting part due to the expansion of the battery, so that the elastic connecting part can be driven to contract; the top pressure unit is provided with a pressure sensor for detecting the pressure applied by the pressure applying mechanism; the pressure plate connected with the elastic connecting part is provided with a displacement sensor.
Based on the design concept, an exemplary structure of the detection tool for battery pre-charge formation of the present embodiment is shown in fig. 1 and fig. 2, and mainly includes a detection platform, a pressing unit, a battery clamping unit, a pressure sensor 6, and a displacement sensor 7.
In order to achieve the purpose of detecting the pressure and expansion displacement change conditions of the two sides of the battery in the pre-charging process, a corresponding number of battery clamping units can be arranged on the detection platform according to the number of the batteries 10 pre-charged at one time. The battery clamping unit includes two pressing plates 400 that are guided to move on the inspection stage, and the battery 10 is clamped between the two pressing plates 400. And arranging the battery clamping units on the detection platform in a line, wherein two adjacent battery clamping units are abutted together. At least one end of the whole row of battery clamping units is connected with a jacking unit.
It should be noted that each cell clamping unit is preferably arranged in a row horizontally, and is disposed on the detection platform, so that it is not necessary to consider the pressure change caused by the gravity of each pressing plate 400; of course, the cell clamping units may be arranged vertically, and the pressure value increased by the own weight of the pressing plate 400, the pressing unit, and the like may be considered in consideration of the clamping force applied to each cell 10. The following description will be made in a form in which a detection platform provided horizontally and a plurality of battery clamping units are horizontally arranged on the detection platform.
The jacking units and the pressing mechanisms thereof can be one group arranged at one end of the whole row of battery clamping units or two groups arranged at two ends; when the pressing unit and the pressing mechanism are not arranged at one end, the pressing plate 400 at the end part should be fixed on the detection platform in a limiting manner so as to prevent the pressing plate 400 at the other end from moving when the pressing mechanism applies a clamping force. As shown in fig. 1 or fig. 2, the detection tool of the present embodiment is provided with a set of pressing units and a pressing mechanism at two ends of the aligned battery clamping units.
With the arrangement, a plurality of battery clamping units can be arranged in a row, so that the pre-charging and the detection of a plurality of batteries 10 can be completed at one time; and both ends of the whole column of battery clamping units are provided with the jacking units and the pressing mechanisms thereof, so that the two ends can be synchronously operated to improve the speed of the clamping operation.
As shown in fig. 3 and 4, the pressing unit includes a force-bearing plate 30, and an elastic connection portion 31 connected between the force-bearing plate 30 and a pressing plate 400; the outer side of the stress plate 30 is connected with the above-mentioned pressing mechanism. During the pre-charging process of the battery 10, the surface of the battery 10 may expand and deform to drive the pressing plates 400 to move toward the elastic connection portions 31, so as to drive the elastic connection portions 31 to contract. Since the pressure sensor 6 for detecting the pressing force of the pressing mechanism is provided on the pressing unit and the displacement sensor 7 is provided on the pressing plate 400 to which the elastic connecting portion 31 is connected, the clamping pressure applied to each battery 10 and the accumulated displacement amount of the expansion deformation of each battery 10 can be obtained.
The elastic connection portion 31 may be a rubber pad, a spring, or the like. Specifically, in the present embodiment, the elastic connection portion 31 includes a guiding column 311 capable of guiding and moving on the force-bearing plate 30, a force-applying plate 310 fixed at one end of the guiding column 311, and a compression spring 312 sleeved on the guiding column 311; the compression spring 312 is sandwiched between the force-bearing plate 30 and the force-applying plate 310. The force application plate 310 abuts against the pressing plate 400 connected with the pressing unit, or is fixedly connected with the pressing plate, or can be directly constructed as a whole. The structure of the guide post 311 and the compression spring 312 is adopted, so that the distance between the force applying plate 310 and the force bearing plate 30 can be elastically changed to reflect the accumulated displacement condition of the expansion change of each battery 10; the structure is simple and effective, the pressure transmission performance is good, and the pressure from the pressure applying mechanism can be well transmitted to each battery clamping unit.
Preferably, a plurality of sets of guide columns 311 and pressure springs 312 are arranged on the stress plate 30 at intervals; in this way, the force transfer between the force-bearing plate 30 and the force-applying plate 310 can be made more uniform. Because the pressure from the pressing mechanism generally acts on the middle part of the stress plate 30, the pressure is uniformly distributed on the stress plate 310 or the pressing plate 400 through the pressure springs 312, and the condition that the stress plate 310 or the pressing plate 400 inclines and deviates due to uneven stress can be effectively reduced, so that the whole surface of the battery 10 is subjected to uniform clamping force, and the accuracy of the detected displacement is also facilitated.
Obviously, a pressing unit is arranged between the pressing mechanism and the pressing plate 400 at the end part at one end of the whole column of battery clamping units; of course, a plurality of the spacers may be provided. In this embodiment, two sets of pressing units are disposed between the pressing mechanism and the battery clamping unit at intervals. The pressing plate 310 of the outer pressing unit is separately provided, the pressing plate 310 of the inner pressing unit and the pressing plate 400 connected to the pressing unit are integrally formed, and the pressure sensor 6 is provided between the two pressing units, so that the pressure applied by the pressing mechanism, that is, the clamping force applied to each battery 10 can be obtained by detecting the clamping force of the supports of the two pressing units.
The two groups of jacking units are arranged at intervals, so that the requirement that the elastic connecting part 31 is suitable for large accumulated expansion displacement amount can be improved, and the excessive change of the clamping force caused by the expansion change of the battery 10 in the pre-charging process can be reduced due to the increase of the contraction distance of the elastic connecting part 31; meanwhile, the pressure sensor 6 is conveniently and flexibly arranged between the two groups of jacking units.
There are many options for the specific drive form of the pressing mechanism, which may be electric, pneumatic or manual. In this embodiment, the pressing mechanism includes a top plate 200 fixed on the detection platform, and a top thread 201 screwed in the middle of the top plate 200; the end of the jack screw 201 facing one end of the jack unit abuts on the force-receiving plate 30. The top plate 200 here can be replaced with standard bolts. By adopting the jackscrew 201 structure, the structure is simple and practical, and the operation device is suitable for the operation characteristics of low operation frequency and small pressure application stroke; the set stable pressing pressure can be obtained by a simple screwing operation assisted by the locking nut 203.
In order to prevent direct friction between the top thread 201 and the force-bearing plate 30, a gasket 202 may be added between the top thread 201 and the force-bearing plate 30 to reduce the wear rate of the top thread 201 and the force-bearing plate 30.
In addition, the detection platform is provided with a guide rod 5, and the stress plate 30 and each pressing plate 400 are arranged on the guide rod 5 in a guiding movement manner. Specifically, the force-receiving plate 30 and each of the pressure plates 400 are configured as rectangular plates of uniform size. Four guide rods 5 are arranged in parallel, and each guide rod 5 is inserted through four corners of the force-bearing plate 30 and each pressure plate 400.
The top plate 200 may be fixedly installed at the end of the guide bar 5 using a guide structure of the guide bar 5, and the force-bearing plate 30, the force-applying plate 310, and each of the pressure plates 400 may be installed on the guide bar 5. But also can move on the guide rod 5 in a guiding way, and the whole guiding structure is stable and efficient. The stress plate 30, the force application plate 310 and each pressure plate 400 are all in a rectangular plate-shaped structure, guide holes are formed in four corners of the stress plate 30, the force application plate 310 and each pressure plate 400, and four guide rods 5 are arranged at the same time, so that the stability of the stress plate 30, the force application plate 310 and each pressure plate 400 in guiding movement is improved; moreover, because there is a space between each adjacent guide rod 5, the battery 10 can be conveniently and smoothly placed in the battery clamping unit, and the terminal 100 on the battery 10 is accommodated between two adjacent guide rods 5, so as to adapt to batteries 10 with different arrangement modes of the terminal 100.
Further, springs 401 are fitted around the guide rods 5 between the pressing plates 400 of the cell clamping unit, and when the two pressing plates 400 clamp the cell 10, the springs 401 are sandwiched between the pressing plates 400. Due to the design, the situation that the pressing plates 400 incline can be effectively avoided, the force transmission between the adjacent pressing plates 400 is more balanced and stable, and the balance of the clamping force applied to the surface of the battery 10 is guaranteed.
In the pre-charge formation test, each battery 10 is placed between the two pressing plates 400 of each battery clamping unit; the battery clamping unit clamps the battery 10 from the thickness direction of the battery 10. The top thread 201 is then tightened to give an initial pressure to the battery 10, and then the parameters such as the charging time for pre-charging and partial-charging are set. Three different initial pressures, such as 100kgf, 300kgf, and 500kgf, may be sequentially designed; this initial pressure was set to F0. Then, the battery is tested to carry out a pre-charge capacity-grading test within a certain external temperature, charge and discharge multiplying power and charge and discharge voltage interval. The actual stress is collected through the pressure sensor 6, and the proper pre-charging and grading pressure parameter is determined through analyzing the battery performance and testing the battery safely. Similarly, change pressure sensor 6 into displacement sensor 7, can move clamp plate 400 to both sides through the bulging force during the electricity core inflation, through displacement sensor 7 to system transmission test data, reachs the change relation of battery 10 pressure and thickness: f0+ 4K Δ X.
In summary, in the detection tool for pre-charging batteries of the present embodiment, the battery clamping unit employs two pressure plates 400 capable of moving in a guiding manner to clamp the batteries 10, so that a plurality of batteries 10 can be arranged in a row, and the pre-charging and expansion conditions of the batteries 10 can be synchronously detected; the top pressing units are arranged at the end parts of the battery clamping units in the whole row, the pressure set by the top pressing units can be given by the pressing mechanisms, and is transmitted to each battery 10 through the top pressing units and each pressing plate 400, so that each battery 10 is subjected to a pre-charging process under the working condition of the set clamping pressure; the elastic connection part 31 is arranged on the top pressure unit, and the surface expansion of each battery 10 in the pre-charging process is transmitted to the elastic connection part 31 through each pressing plate 400; the displacement sensor 7 is arranged on the pressing plate 400 connected with the elastic connecting part 31, and the pressure sensor 6 is arranged on the jacking unit, so that the expansion displacement change of each battery 10 in the formation process and the clamping pressure condition borne by each battery can be detected, the related data of the batteries 10 can be acquired, and the optimization and improvement of the pre-charging and grading process and the manufacturing process of the batteries 10 are facilitated.
In addition, for different types of batteries, the design of the detection tool for pre-charging the battery needs to be compatible with the battery with a common size specification, and the battery with both ends having tabs and one end having tabs also needs to be considered. The detection tool can record the changes of clamping pressure and expansion displacement in the charging and discharging processes of the battery by giving different initial pressures and then in the pre-charging and forming process of the battery core, and can give consideration to the pre-charging and grading of batteries with different tab design types. The detection tool can give an initial clamping external force to the battery, and the internal expansion force of the battery can increase the clamping pressure along with the increase of the pre-charging time; therefore, the maximum deformation pressure which can be borne by the battery can be tested by installing the symmetrical pressure sensor and the displacement sensor in the tool, and the maximum force has important significance for the design of the pre-charging capacity-grading pressure.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A detection tool for battery pre-charging formation comprises a detection platform and a plurality of battery clamping units arranged on the detection platform; the method is characterized in that:
the battery clamping unit comprises two pressing plates (400) which can be guided to move on the detection platform, and the battery (10) is clamped between the two pressing plates (400);
two adjacent battery clamping units are connected in an abutting mode, and at least one end of each battery clamping unit in the array is connected with a jacking unit; the pressing plate (400) which is positioned at the end part of the battery clamping unit in the whole row and is not connected with the jacking unit is limited on the detection platform;
the jacking unit comprises a stress plate (30) and an elastic connecting part (31) connected between the stress plate (30) and the pressing plate (400); the outer side of the stress plate (30) is connected with a pressure applying mechanism;
due to the expansion of the battery (10), each pressing plate (400) moves towards the elastic connecting part (31) so as to drive the elastic connecting part (31) to contract;
the top pressure unit is provided with a pressure sensor (6) for detecting the pressure applied by the pressure applying mechanism; and a displacement sensor (7) is arranged on the pressing plate (400) connected with the elastic connecting part (31).
2. The detection tool for battery pre-charge formation according to claim 1, wherein:
the elastic connecting part (31) comprises a guide column (311) which can guide and move on the stress plate (30), an application plate (310) which is fixedly connected with one end of the guide column (311), and a pressure spring (312) which is sleeved on the guide column (311) and clamped between the stress plate (30) and the application plate (310);
the force application plate (310) is connected with the pressing plate (400) connected with the jacking unit in an abutting mode or is integrally constructed.
3. The detection tool for battery pre-charge formation according to claim 2, wherein:
the guide columns (311) and the pressure springs (312) are arranged on the stress plate (30) at intervals.
4. The detection tool for battery pre-charge formation according to claim 2, wherein:
two groups of jacking units are arranged between the pressing mechanism and the battery clamping unit at intervals;
the force application plate (310) of the top pressing unit at the outer side is independently arranged;
the force application plate (310) of the inner press unit and the press plate (400) connected with the press unit are constructed into a whole;
the pressure sensor (6) is arranged between the two jacking units.
5. The detection tool for battery pre-charge formation according to claim 1, wherein:
the pressing mechanism comprises a top plate (200) fixedly arranged on the detection platform and a jackscrew (201) screwed in the middle of the top plate (200);
the end part of the jackscrew (201) is abutted against the stress plate (30).
6. The detection tool for battery pre-charge formation according to claim 5, wherein:
and a gasket (202) is arranged between the jackscrew (201) and the stress plate (30).
7. The detection tool for battery pre-charge formation according to any one of claims 1 to 6, wherein:
the detection platform is provided with a guide rod (5), and the stress plate (30) and the pressing plates (400) can be arranged on the guide rod (5) in a guiding and moving manner.
8. The detection tool for battery pre-charge formation according to claim 7, wherein:
the stress plate (30) and each pressure plate (400) are configured to be rectangular with the same size;
the guide rods (5) are four in parallel arrangement and respectively penetrate through the stress plate (30) and four corners of each pressing plate (400).
9. The detection tool for battery pre-charge formation according to claim 8, wherein:
each guide rod (5) between the two pressing plates (400) of the battery clamping unit is sleeved with a spring (401);
each spring (401) is sandwiched between the two pressure plates (400).
10. The detection tool for battery pre-charge formation according to claim 7, wherein:
a plurality of battery clamping units are arranged in a line on the detection platform; and the number of the first and second electrodes,
the jacking units and the pressing mechanisms are arranged at two ends of the battery clamping units in an array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084335.4U CN215731866U (en) | 2021-08-31 | 2021-08-31 | Detection tool for pre-charging formation of battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084335.4U CN215731866U (en) | 2021-08-31 | 2021-08-31 | Detection tool for pre-charging formation of battery |
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| CN215731866U true CN215731866U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609012A (en) * | 2023-05-26 | 2023-08-18 | 深圳市海瑞思自动化科技有限公司 | Battery pack leakage detection device |
-
2021
- 2021-08-31 CN CN202122084335.4U patent/CN215731866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609012A (en) * | 2023-05-26 | 2023-08-18 | 深圳市海瑞思自动化科技有限公司 | Battery pack leakage detection device |
| CN116609012B (en) * | 2023-05-26 | 2024-01-05 | 深圳市海瑞思自动化科技有限公司 | Battery pack leakage detection device |
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