CN114459921B - Automatic battery sample injection equipment for battery impact test - Google Patents
Automatic battery sample injection equipment for battery impact test Download PDFInfo
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- CN114459921B CN114459921B CN202210070878.7A CN202210070878A CN114459921B CN 114459921 B CN114459921 B CN 114459921B CN 202210070878 A CN202210070878 A CN 202210070878A CN 114459921 B CN114459921 B CN 114459921B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N2035/1027—General features of the devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention relates to automatic sample injection equipment for a battery for battery impact test, which comprises a sample injection box, a sampling assembly, an observation module, a steel bar lifting module and a control module, wherein the sample injection box is connected with the sampling assembly; the sample injection box comprises a sample injection box shell, a rotating assembly and an adjustable bracket, wherein the rotating assembly and the adjustable bracket are arranged at the bottom of the sample injection box shell; the sampling assembly comprises a rotating base and a lifting sampling arm arranged on the rotating base, and an electromagnet is arranged on the lifting sampling arm; the observation module comprises a base, an explosion-proof box detachably arranged on the base and a displacement driving unit connected with the base; the steel bar lifting module comprises a lifting assembly and a steel bar connected with the lifting assembly, wherein the lifting assembly can adjust the height of the steel bar and fix the position of the steel bar through the steel bar lifting module. Compared with the prior art, the invention has small occupied area, and each module can be flexibly adjusted; the impact test is automatically carried out, the use is quick and convenient, the operation is simple and efficient, and the impact test device is suitable for the impact test of the cylindrical lithium battery.
Description
Technical Field
The invention relates to a battery safety test device, in particular to a battery automatic sample injection device for a battery impact test.
Background
The impact test is an important test for verifying the safety of a lithium ion battery, and is used for simulating mechanical damage which can cause internal short circuit of the battery under misuse conditions such as impact or extrusion, and according to requirements of impact test of chapter 3 (UN 38.3 hereinafter) T.6 of the code 38 of the code of the instruction manual and standard manual for transportation of dangerous goods of the United nations, a cylindrical lithium ion battery core with the diameter of more than or equal to 18mm is placed on a flat and smooth surface, and falls from a height of 61 cm to a steel bar (the diameter of the steel bar is 15.8 mm, the length of the steel bar is at least 6 cm) and a cross part of a sample through a weight of 9.1 kg, and the highest temperature of the battery after temperature rise is recorded.
To date, UN38.3 has undergone multiple revisions, with a frequency of once every two years, involving experimental methods, pretreatment modes, and the like. The first 2017 UN38.3 sixth edition revision I publishes that the number of battery samples tested by the T.6 impact test is increased from 5 to 10 battery cells, and the test method is unchanged. For the increase of the test quantity, a high-efficiency experimental device capable of completing the automatic sample injection function conveniently and rapidly is urgently needed, and currently, the main stream impact test device on the market does not have the function of automatic test.
The main reason why the UN38.3 T.6 takes a long time in the impact test is that the battery is subject to impact and internal short circuit occurs to start discharging, and the temperature rise and fall are slow due to the fact that the battery core is safely designed with a thermistor (Positive Temperature Coefficient). In fact, after the battery is impacted, the battery is in an observation state, and the equipment can completely test the next sample, but the battery is quite dangerous to directly replace in the process of heating the battery, and the experimental result is easily affected by manually squeezing the battery by means of clamping tools such as crucible clamps and the like. Often an experimenter cannot access and replace the battery before judging that the battery has fallen to a safe temperature.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the automatic sample injection equipment for the battery impact test, which mainly solves the technical problems of low efficiency, unsafe and the like of the existing battery impact equipment.
The aim of the invention can be achieved by the following technical scheme:
the invention aims to protect automatic sample injection equipment for a battery for battery impact test, which comprises a sample injection box, a sampling assembly, an observation module, a steel bar lifting module and a control module, wherein the automatic sample injection equipment comprises the following components:
the sample injection box comprises a sample injection box shell, a rotating assembly and an adjustable bracket, wherein the rotating assembly is arranged at the bottom of the sample injection box shell, a battery to be tested is arranged in the sample injection box shell, the rotating assembly is arranged at the outlet of the sample injection box shell, the adjustable bracket can adjust the inclination degree of the sample injection box shell, and the rotating assembly can control the discharging of the battery to be tested through rotation;
the sampling assembly comprises a rotating base and a lifting sampling arm arranged on the rotating base, and an electromagnet is arranged on the lifting sampling arm so as to realize grabbing and releasing operations of the battery to be tested;
the observation module comprises a sliding table, an explosion-proof box detachably arranged on the sliding table and a screw rod connected with the sliding table, wherein the detachable mode adopts the existing buckle structure or locating pin structure;
the steel bar lifting module comprises a lifting assembly and a steel bar connected with the lifting assembly, wherein the lifting assembly can adjust the height of the steel bar;
the control module is respectively in communication connection with the sample injection box, the sampling assembly, the observation module and the steel bar lifting module.
Further, the rotating assembly comprises a driving motor, a rotating shaft in transmission connection with an output shaft of the driving motor and a feeding plate uniformly connected to the rotating shaft.
Further, the rotating assembly is arranged at one end, close to the outlet, of the sample injection box shell, and a gap between the feeding plates is matched with the volume of the battery to be tested.
Further, a movable cover is arranged at the outlet of the sample injection box shell, and the rotating assembly rotates the given battery to be tested to roll out from the movable cover.
Further, the adjustable support comprises a support base and a support plate, wherein a plurality of limit grooves are formed in the support base, one side of the support plate is hinged to the lower surface of the sample injection box, and the other side of the support plate is abutted to the limit grooves.
Further, a servo motor is arranged in the rotating base, and an output shaft of the servo motor is in transmission connection with the lower end of the liftable sampling arm.
Further, the liftable sampling arm comprises a servo electric cylinder, and the servo electric cylinder is in transmission connection with the output end of the servo motor and rotates under the drive of the servo motor;
the output end of the servo electric cylinder is connected with an L-shaped rod, and the electromagnet is fixed on the L-shaped rod.
Further, the steel bar temperature monitoring device also comprises a temperature acquisition module, wherein the temperature acquisition module is arranged above the steel bar lifting module and the observation module through a bracket.
Further, the lifting assembly comprises a first steel bar lifting unit and a second steel bar lifting unit which are symmetrically arranged, two ends of the steel bar are respectively connected with the first steel bar lifting unit and the second steel bar lifting unit, and the first steel bar lifting unit and the second steel bar lifting unit can simultaneously lift two ends of the steel bar.
Further, the first steel bar lifting unit and the second steel bar lifting unit comprise lifting unit shells, springs and lifting electric cylinders, one ends of the springs are connected to the tops of the lifting unit shells, upper compression blocks are connected to the lower ends of the springs, the lifting electric cylinders are arranged on the lower surfaces of the lifting unit shells, lower compression blocks are connected to the output ends of the lifting electric cylinders, and arc-shaped grooves are formed in the upper compression blocks and the lower compression blocks.
The invention also provides an automatic detection method for the battery impact test finished by using the automatic sample injection equipment of the battery, which comprises the following steps:
1. and placing the battery to be tested in the sample injection box, and enabling the battery to be tested to reach the rotating assembly through the inclination angle of the sample injection box.
2. The control module controls the rotating assembly to rotate the single battery to be tested.
3. The control module controls the sampling assembly to rotate so that the liftable sampling arm reaches the sampling window of the sampling box.
4. The control module controls the electromagnet at the front end of the sampling assembly to be electrified so as to attract the battery to be tested.
5. The control module controls the steel bar lifting assembly to lift the steel bar.
6. The control module controls the sampling assembly to enable the liftable sampling arm to reach the appointed position of the experiment base through rotation.
7. The control module controls the electromagnet at the front end of the sampling assembly to be powered off, and the battery to be tested is put down at the appointed position of the experimental base.
8. The control module controls the sampling assembly to rotate so that the liftable sampling arm reaches the sampling window of the sampling box for standby.
9. The control module controls the electromagnet in the experiment base to be electrified to adjust and fix the position of the battery, and then the power is cut off.
10. The control module controls the steel bar lifting assembly to place the steel bar on the battery to be tested, and the steel bar is maintained to be horizontal through the spring at the top.
11. After the impact test is finished, the temperature acquisition module continuously tracks and acquires the temperature of the battery after the test and sends data to an external computer.
12. The control module controls the steel bar lifting assembly to lift the steel bar.
13. The control module controls the sampling assembly to enable the liftable sampling arm to reach the appointed position of the experiment base through rotation.
14. The control module controls the electromagnet at the front end of the sampling assembly to be electrified so as to suck the tested battery.
15. The control module controls the sampling assembly to enable the liftable sampling arm to reach the upper part of the explosion-proof box through rotation.
16. The control module controls the electromagnet at the front end of the sampling assembly to be powered off, and the tested battery is placed in the explosion-proof box.
17. The control module controls the motor in the observation module to enable the explosion-proof box to horizontally move, and meanwhile, the next explosion-proof box reaches the position to be detected.
18. When the temperature acquisition module detects that the battery to be tested is in the explosion-proof box, and the temperature of the battery after the battery is tested exceeds the standard requirement, a stop instruction is sent to the control module.
19. When the control module receives an instruction that the scram button is pressed, stopping the operation of the battery automatic sample feeding equipment for the battery impact test
Compared with the prior art, the invention has the following technical advantages:
1) High efficiency, the battery autoinjection equipment in this technical scheme advances appearance and realizes automation mechanized operation.
2) The battery automatic sample injection equipment in the technical scheme has strong instantaneity, and the temperature of each battery can be captured in real time through the thermal imaging camera in the temperature acquisition module.
3) The safety is strong, and the battery automatic sample injection equipment in the technical scheme does not need human intervention in the test process, so that the risk is reduced.
4) The occupation area is small, and each module of the automatic sample injection equipment for the battery in the technical scheme can be flexibly adjusted.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the automatic sample injection device for a battery in the present technical solution.
Fig. 2 is a schematic top view of an automatic sample injection device for a battery in the present technical solution.
Fig. 3 is a schematic structural diagram of a sample box and a sampling assembly in the present technical solution.
Fig. 4 is a schematic structural diagram of a sample box and a sampling assembly with another view angle.
Fig. 5 is a schematic cross-sectional structure of the sample injection box.
Fig. 6 is a schematic view of the structure of the observation module.
Fig. 7 is a schematic structural view of the experimental base, the steel bar lifting assembly, the steel bar and the battery.
Fig. 8 is a schematic cross-sectional view of a steel bar lifting assembly.
In the figure, 1 is a sample feeding box, 1-1 is a rotating component, 1-2 is an adjustable bracket, 1-3 is a movable cover, 2 is a sampling component, 2-1 is an electromagnet, 2-2 is a lifting sampling arm, 2-3 is a rotating base, 3 is an observation module, 3-1 is an explosion-proof box, 3-2 is a sliding table, 3-3 is a screw rod, 3-4 is a motor, 3-5 is a sliding rail, 4-1 is a first steel bar lifting unit, 4-2 is a second steel bar lifting unit, 4-11 is a spring, 4-12 is a lifting component, 5 is a control module, 6 is a temperature acquisition module, 7 is a steel bar, 8 is an experiment base, 9 is a battery, 10 is a drop hammer, 11-1 is a first guide rail, and 11-2 is a second guide rail.
Description of the embodiments
The invention will now be described in detail with reference to the drawings and specific examples. Features such as a part model, a material name, a connection structure, a control method, an algorithm and the like which are not explicitly described in the technical scheme are all regarded as common technical features disclosed in the prior art.
The automatic sample injection equipment for the battery impact test in the technical scheme is structurally shown in figures 1 to 8, and comprises a sample injection box 1, a sampling assembly 2, an observation module 3, a first steel bar lifting unit 4-1, a second steel bar lifting unit 4-2, a control module 5, an experiment base 8 and a temperature acquisition module 6.
The sample box shell consists of a high-temperature-resistant explosion-proof shell, and the bottom of the sample box is provided with a rotating assembly 1-1 which is connected with a control module 5. The bottom of the sample injection box is provided with the inclination of the sample injection box which can be adjusted by the adjustable bracket 1-2. The battery to be tested moves to the rotating assembly 1-1 through the weight of the battery to be tested, the movable cover 1-3 is arranged at the sample outlet position of the sample box, and a sampling window is arranged at one side of the sample box, facing the sampling assembly.
The sampling assembly 2 comprises a rotatable base, a liftable sampling arm is arranged on the rotatable base, an electromagnet 2-1 is arranged on the liftable sampling arm, and grabbing and releasing operations of the liftable sampling arm can be controlled. The rotatable base, the liftable sampling arm and the electromagnet 2-1 are all in communication connection with the control module 5.
The observation module comprises an explosion-proof box 3-1 of a high-temperature-resistant explosion-proof housing. The sliding table 3-2 is connected with the explosion-proof box 3-1, and the upper end of the sliding table is provided with a quick-dismantling assembly which can quickly dismantle the explosion-proof box 3-1. The sliding table 3-2 is connected with the lead screw 3-3, the lead screw 3-3 is in transmission connection with the motor 3-4, an internal threaded hole matched with the external thread of the lead screw 3-3 is formed in the sliding table 3-2, so that the lead screw transmission process is realized, the sliding table can horizontally move on the sliding rail 3-5, and the motor 3-4 is in communication connection with the control module 5.
The first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 are internally provided with lifting assemblies, the top is provided with springs 4-11, the steel bars 7 can be automatically lifted, and when the battery 9 to be tested enters the experimental base 8, the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 can maintain the level of the steel bars 7, and the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 are connected with the control module 5.
The control module 5 is respectively in communication connection with the sample box 1, the sampling assembly 2, the observation module and the steel bar lifting module. The control module 5 in the technical scheme is a single chip microcomputer or a microprocessor which is mainstream in the market.
The rotating assembly 1-1 comprises a driving motor, a rotating shaft in transmission connection with an output shaft of the driving motor and a feeding plate uniformly connected to the rotating shaft. The rotating component 1-1 is arranged at one end, close to the outlet, of the sample box shell, and a gap between the feeding plates is matched with the volume of the battery 9 to be tested.
The outlet of the sample box shell is provided with a movable cover 1-3, and the rotary assembly 1-1 rotates to roll out the battery 9 to be tested from the movable cover 1-3.
The adjustable support 1-2 comprises a support base and a supporting plate, wherein a plurality of limiting grooves are formed in the support base, one side of the supporting plate is hinged to the lower surface of the sample injection box 1, and the other side of the supporting plate is abutted to the limiting grooves.
The rotary base 2-3 is internally provided with a servo motor, and an output shaft of the servo motor is in transmission connection with the lower end of the liftable sampling arm 2-2.
The lifting sampling arm 2-2 comprises a servo electric cylinder, wherein the servo electric cylinder is in transmission connection with the output end of the servo motor and rotates under the drive of the servo motor; the output end of the servo electric cylinder is connected with an L-shaped rod, and the electromagnet 2-1 is fixed on the L-shaped rod.
The temperature acquisition module 6 is arranged above the steel bar lifting module and the observation module through a bracket. The temperature acquisition module 6 is a temperature measurement sensor adopting the current mainstream. The support is provided with a first guide rail 11-1 and a second guide rail 11-2, and two ends of the drop hammer 10 are respectively connected to the first guide rail 11-1 and the second guide rail 11-2 through connecting rods and existing sliding components.
The lifting assembly comprises a first steel bar lifting unit 4-1 and a second steel bar lifting unit 4-2 which are symmetrically arranged, two ends of the steel bar 7 are respectively connected with the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2, and the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 can lift two ends of the steel bar 7 at the same time.
The first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 comprise lifting unit shells, springs 4-11 and lifting electric cylinders 4-12, one ends of the springs 4-11 are connected to the tops of the lifting unit shells, upper compression blocks are connected to the lower ends of the springs 4-11, the lifting electric cylinders 4-12 are arranged on the lower surfaces of the lifting unit shells, lower compression blocks are connected to the output ends of the lifting electric cylinders 4-12, arc-shaped grooves are formed in the upper compression blocks and the lower compression blocks, and the two arc-shaped grooves are arranged oppositely, so that clamping of the steel bars 7 can be achieved.
In specific use, the detection steps for performing a plurality of battery impact tests by using the assembly are as follows:
1. the battery 9 to be measured is placed in the sample box 1, and the battery 9 to be measured reaches the rotating component 1-1 through the inclination angle of the sample box 1.
2. The control module 5 controls the rotating assembly 1-1 to rotate the single battery 9 to be measured therethrough.
3. The control module 5 controls the sampling assembly 2 to rotate so that the liftable sampling arm reaches the sampling window of the sampling box 1.
4. The control module 5 controls the electromagnet 2-1 at the front end of the sampling assembly 2 to be electrified so as to attract the battery 9 to be tested.
5. The control module 5 controls the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 to lift the steel bar 7.
6. The control module 5 controls the sampling assembly 2 to rotate so that the liftable sampling arm reaches the designated position of the experiment base 8.
7. The control module 5 controls the electromagnet 2-1 at the front end of the sampling assembly 2 to be powered off, and the battery 9 to be tested is put down at the appointed position of the experiment base 8.
8. The control module 5 controls the sampling assembly 2 to rotate so that the liftable sampling arm reaches the sampling window of the sampling box to stand by.
9. The control module 5 controls the electromagnet in the experimental base to be electrified, adjusts and fixes the position of the battery, and then is powered off.
10. The control module 5 controls the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 to place the steel bar 7 on the battery 9 to be tested, and the steel bar 7 is maintained to be horizontal through a spring at the top.
11. After the impact test is finished, the temperature acquisition module 6 continuously tracks and acquires the temperature of the battery 9 after the test, and sends data to an external computer.
12. The control module 5 controls the first steel bar lifting unit 4-1 and the second steel bar lifting unit 4-2 to lift the steel bar 7.
13. The control module 5 controls the sampling assembly 2 to rotate so that the liftable sampling arm reaches the designated position of the experiment base 8.
14. The control module 5 controls the electromagnet 2-1 at the front end of the sampling assembly 2 to be electrified so as to suck the tested battery 9.
15. The control module 5 controls the sampling assembly 2 to rotate so that the liftable sampling arm reaches above the explosion-proof box 3-1.
16. The control module 5 controls the electromagnet 2-1 at the front end of the sampling assembly 2 to be powered off, and the tested battery 9 is placed in the explosion-proof box 3-1.
17. The control module 5 controls the motor 3-4 in the observation module 3 to horizontally move the explosion-proof box 3-1, and the next explosion-proof box reaches the position to be measured.
18. When the temperature acquisition module 6 detects the detected battery 9 in the explosion-proof box 3-1 and the temperature of the battery 9 after the detection exceeds the standard requirement, a stop instruction is sent to the control module 5.
19. When the control module 5 receives the instruction of pressing the scram button, the operation of the battery automatic sample feeding device for the battery impact test is stopped
20. The control program 5 repeats the operations of steps 2 to 19.
21. When all the tested batteries are in the observation module, the temperature acquisition module captures the highest temperature of the batteries and stores the highest temperature of the batteries into an external computer.
22. And when the temperature of the battery is reduced, an experimenter takes out the explosion-proof box through the quick-release assembly, cleans the explosion-proof box, takes out the battery after the test, restores the observation module, and the experiment is finished.
Comparative example 1
The impact equipment mainly represented by Chinese patent CN207585877U, CN214174046U is difficult to test in high efficiency without considering excessive sample quantity at the beginning of design, and has complicated operation. The battery adjustment and fixation and the equipment control are completed manually.
Different from the above patent, the battery automatic sample injection device applied to the battery impact test has the advantages that the sampling assembly is matched with the sample injector, the steel bar lifting assembly and the observation module, and the battery in the observation state is transferred to the observation module for observation, so that an experiment base is vacated for the next test, the impact automation is realized, and the problem of overlong impact experiment test time is solved.
Comparative example 2
Chinese patent CN107226349 a discloses a handling mechanism with an automatic gripping robot arm, which is different from the application field of the present invention in the technical scheme for heavy object handling.
Unlike the above patent, the battery automatic sample feeding device applied to the battery impact test has the advantages that the electromagnet is directly designed at the tail end of the component to directly grab the object, so that the mechanical structure of the component is directly reduced. The real-time position of the article is confirmed without using complicated sensors such as infrared, the position of the article is fixed, the position is fixed, the sampling assembly can be directly grabbed without adjustment after reaching the position, the structure is simple, the mechanical reliability is higher, and the device is suitable for environments with complex working conditions.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (6)
1. A battery autosampler for battery impact testing, comprising:
the sample injection box (1) comprises a sample injection box shell, a rotating assembly (1-1) and an adjustable bracket (1-2), wherein the rotating assembly (1-1) is arranged at the bottom of the sample injection box shell, a battery (9) to be tested is arranged in the sample injection box shell, the rotating assembly (1-1) is arranged at the outlet of the sample injection box shell, the adjustable bracket (1-2) can adjust the inclination degree of the sample injection box shell, and the rotating assembly (1-1) can control the discharging of the battery (9) to be tested through rotation;
the sampling assembly (2) comprises a rotating base (2-3) and a lifting sampling arm (2-2) arranged on the rotating base (2-3), wherein an electromagnet (2-1) is arranged on the lifting sampling arm (2-2) so as to realize grabbing and releasing operations of a battery (9) to be tested;
the observation module comprises a sliding table (3-2), an explosion-proof box (3-1) detachably arranged on the sliding table (3-2) and a displacement driving unit connected with the sliding table (3-2);
the steel bar lifting module comprises a lifting assembly and a steel bar (7) connected with the lifting assembly, wherein the lifting assembly can adjust the height of the steel bar (7) and can fix the position of the steel bar (7) through the steel bar lifting module;
the control module (5) is respectively in communication connection with the sample injection box (1), the sampling assembly (2), the observation module and the steel bar lifting module;
the rotary assembly (1-1) comprises a driving motor, a rotating shaft in transmission connection with an output shaft of the driving motor and a feeding plate uniformly connected to the rotating shaft;
the rotary component (1-1) is arranged at one end, close to the outlet, of the sample box shell, and a gap between the feeding plates is matched with the volume of the battery (9) to be tested;
a movable cover (1-3) is arranged at the outlet of the sample box shell, and the rotary assembly (1-1) rotates to give a battery (9) to be tested and rolls out from the movable cover (1-3);
the automatic sample injection equipment for the battery further comprises a temperature acquisition module (6), and the temperature acquisition module (6) is arranged above the steel bar lifting module and the observation module through a bracket.
2. The automatic battery sample feeding device for battery impact test according to claim 1, wherein the adjustable bracket (1-2) comprises a bracket base and a supporting plate, wherein a plurality of limit grooves are formed in the bracket base, one side of the supporting plate is hinged to the lower surface of the sample feeding box (1), and the other side of the supporting plate is abutted to the limit grooves.
3. The automatic battery sample feeding device for battery impact test according to claim 1, wherein a servo motor is arranged in the rotary base (2-3), and an output shaft of the servo motor is in transmission connection with the lower end of the liftable sampling arm (2-2).
4. A battery autosampler for battery impact test according to claim 3, characterized in that the liftable sampling arm (2-2) comprises a servo electric cylinder, the servo electric cylinder is in transmission connection with the output end of the servo motor and rotates under the drive of the servo motor;
the output end of the servo electric cylinder is connected with an L-shaped rod, and the electromagnet (2-1) is fixed on the L-shaped rod.
5. A battery autosampler for battery impact test according to claim 3, characterized in that the lifting assembly comprises a first steel bar lifting unit (4-1) and a second steel bar lifting unit (4-2) which are symmetrically arranged, two ends of the steel bar (7) are respectively connected with the first steel bar lifting unit (4-1) and the second steel bar lifting unit (4-2), and the first steel bar lifting unit (4-1) and the second steel bar lifting unit (4-2) can lift two ends of the steel bar (7) at the same time.
6. The automatic battery sample injection device for battery impact test according to claim 5, wherein the first steel bar lifting unit (4-1) and the second steel bar lifting unit (4-2) comprise a lifting unit shell, a spring (4-11) and a lifting electric cylinder (4-12), one end of the spring (4-11) is connected to the top of the lifting unit shell, an upper compression block is connected to the lower end of the spring (4-11), the lifting electric cylinder (4-12) is arranged on the lower surface of the lifting unit shell, a lower compression block is connected to the output end of the lifting electric cylinder (4-12), and circular arc grooves are formed in the upper compression block and the lower compression block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210070878.7A CN114459921B (en) | 2022-01-21 | 2022-01-21 | Automatic battery sample injection equipment for battery impact test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109904547B (en) * | 2017-12-11 | 2020-08-07 | 中国科学院过程工程研究所 | Waste cylindrical lithium battery pretreatment device and pretreatment method |
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