CN114199687A - A acupuncture extrusion test platform for new energy automobile battery package - Google Patents
A acupuncture extrusion test platform for new energy automobile battery package Download PDFInfo
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- CN114199687A CN114199687A CN202111472237.6A CN202111472237A CN114199687A CN 114199687 A CN114199687 A CN 114199687A CN 202111472237 A CN202111472237 A CN 202111472237A CN 114199687 A CN114199687 A CN 114199687A
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
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Abstract
The invention belongs to the technical field of battery pack tests and discloses a needling extrusion test bed for a new energy automobile battery pack, which comprises a workbench and the battery pack, wherein the top of the workbench is fixedly provided with the test bed, the bottom of an inner cavity of the workbench is fixedly provided with a hydraulic cylinder, a telescopic end of the hydraulic cylinder is fixedly provided with a placing plate, the top of the placing plate is fixedly provided with a sealing column, and the top of the test bed is fixedly provided with a fixed bed. The battery pack protection device drives the placing plate and the battery pack to move upwards synchronously, so that the battery pack has initial acceleration when moving, the placing plate and the battery pack collide with each other when the needling extrusion plate carries out needling extrusion on the battery pack, the impact force caused by real automobile impact is simulated, meanwhile, the battery pack is simulated by the isolation plate to have the protection function of the battery box, so that the needling extrusion test result of the battery pack is more fit to the ground, and the test accuracy is improved.
Description
Technical Field
The invention belongs to the technical field of battery pack tests, and particularly relates to a needling extrusion test bed for a new energy automobile battery pack.
Background
With the implementation and promotion of carbon neutralization strategies in China, new energy vehicles gradually enter the market, the environment is well protected by achieving zero emission in the driving process, and the main power of the new energy vehicles is batteries, so that safety tests on new energy vehicle battery packs are inevitable.
The existing acupuncture extrusion test bed for the new energy automobile battery pack mainly uses a single hydraulic cylinder as power to conduct extrusion test on the automobile battery pack, but the test mode is not accurate enough, the effect of acceleration force on the automobile battery pack subjected to high-speed impact cannot be simulated due to the fact that the hydraulic cylinder drives the extrusion plate to move, meanwhile, a battery box on the periphery of the battery pack can also be extruded on the real impact site, the existing test platform cannot simulate peripheral extrusion on the battery pack, therefore, the real stress condition of the built-in battery pack during automobile impact cannot be truly reduced, and therefore tested data do not have statistical significance and the test result is not accurate enough.
Meanwhile, the hydraulic cylinder for testing power also has unstable factors, so that impact force cannot be buffered when the hydraulic cylinder contacts the battery pack, and the impact force cannot truly simulate the force generated by the acceleration of the battery pack during the collision of an accident, so that the problems need to be overcome in the test.
In addition, the existing acupuncture extrusion test bed for the new energy automobile battery pack is lack of sufficient protection, the protection is not only directed at test operators, but also related components inside the test bed, such as exposed key circuits, in the prior art, the protection is mainly closed, the protection range is too large, automatic protection cannot be accurately performed on the battery pack, the protection measures are 'forcefully prevented', and the protection efficiency and the protection effect are greatly reduced.
Disclosure of Invention
The invention aims to provide a needling extrusion test bed for a new energy automobile battery pack, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: a needling extrusion test bed for a new energy automobile battery pack comprises a workbench and a battery pack, wherein the top of the workbench is fixedly provided with the test bed, the bottom of an inner cavity of the workbench is fixedly provided with a hydraulic cylinder, a telescopic end of the hydraulic cylinder is fixedly provided with a placing plate, the top of the placing plate is fixedly provided with a sealing column, the top of the test bed is fixedly provided with a fixed platform, the inside of the fixed platform is provided with a liquid storage cavity, the bottom of the liquid storage cavity is provided with a moving groove, the inside of the moving groove is hermetically sleeved with the moving column and a second spring, the bottom of the moving column is fixedly provided with a needling extrusion plate, the outer surface of the fixed platform is fixedly communicated with a sealing cylinder, the inside of the sealing cylinder is provided with a liquid storage groove, the liquid storage cavity and the inside of the liquid storage groove are both filled with transmission liquid, and the top of the placing plate is movably clamped with an isolation plate, a fixed plate is fixedly arranged at the bottom of the isolation plate, and a first spring is arranged between the fixed plate and the placing plate;
as shown in fig. 3, the hydraulic cylinder is opened and drives the placing plate and the sealing column to move upwards, so that the transmission fluid in the liquid storage tank and the liquid storage cavity is extruded and driven along with the upward movement of the sealing column, the transmission fluid starts to push the moving column downwards, as shown in fig. 2, the transmission fluid drives the moving column to move downwards through hydraulic pressure, so that the second spring is compressed, the transmission fluid enters the upper space of the inner cavity of the moving groove, meanwhile, the placing plate drives the battery pack to move upwards, the moving column drives the acupuncture squeezing plate to rapidly contact with the battery pack downwards, because the placing plate is linked with the acupuncture squeezing plate up and down, the hydraulic cylinder is directly opened at full speed, the test extrusion force acting on the battery pack has the impact force simulating real traffic accidents through the upward relative impact force of the battery pack and the hydraulic transmission of the acupuncture squeezing plate through the transmission fluid, and simultaneously, the battery pack deforms along with the extrusion of the acupuncture squeezing plate, the acupuncture stripper plate begins to make spacing contact with the top of the isolating plate, so that the battery pack which is transversely deformed is wrapped by the isolating plate, the protection of the battery box on the battery pack is simulated, and the acupuncture extrusion test of the battery pack is completed.
Make the pneumatic cylinder place the board rebound through being provided with the transmission fluid in the drive, through driving sealed post rebound, it takes place to flow to promote the transmission fluid, make the transmission fluid promote the removal post downwards, through the characteristic that the transmission fluid can not be compressed, turn into decurrent pressure with the ascending impact force original rigid of pneumatic cylinder, in the acupuncture stripper plate rebound, the pneumatic cylinder drives and places board and battery package and shift up in step, thereby make the removal of battery package have initial acceleration, when the acupuncture stripper plate carries out the acupuncture extrusion to the battery package, both collide with each other, thereby the impact force that real car striking brought has been simulated, and simultaneously, through being provided with the barrier plate to simulate the safeguard function of battery box to the battery package, thereby make the acupuncture extrusion test result of battery package laminate on the spot more, thereby the accuracy of experiment has been improved.
Preferably, the liquid storage tank is communicated with the liquid storage cavity, the volume value of the transmission liquid is smaller than the sum of the volume values of the liquid storage tank and the liquid storage cavity, a second spring is movably sleeved on the outer surface of the movable column, and two ends of the second spring are fixedly connected with the movable column and the movable tank respectively;
as shown in fig. 2, the page height that the transmission fluid is located stock solution intracavity portion is less than the height value in stock solution chamber, thereby make to possess the space between transmission fluid and the stock solution chamber, when the pneumatic cylinder drives places board and sealed post rebound, sealed post is through promoting the hydraulic drive that the transmission fluid was accomplished to removal post and acupuncture stripper plate, when flexible end at the pneumatic cylinder is flexible to the assigned position, the impact force of pneumatic cylinder is alleviated through the air of extrusion stock solution intracavity portion, make the flexible of pneumatic cylinder obtain the buffering, because the air is can the compressed, the drawback that pneumatic cylinder self unstability brought can be absorbed to the compressed air.
Preferably, four clamping grooves are formed in the top of the placing plate, an isolation plate is movably clamped in each clamping groove, a fixed plate is fixedly mounted at the bottoms of the four isolation plates, a through hole is formed in the middle of the fixed plate, the number of the first springs is four, the four first springs are distributed in an equidistant circumferential manner by taking the horizontal circle center of the through hole as a reference, and the diameter value of the through hole is larger than that of the telescopic end of the hydraulic cylinder;
as shown in fig. 2, when the hydraulic cylinder drives the placing plate and the battery pack to move upwards, the needling extrusion plate moves downwards under the action of the sealing column, the transmission fluid and the moving column, the needling extrusion plate starts to perform needling extrusion on the battery pack to deform the battery pack, and along with the downward movement of the needling extrusion plate, the needling extrusion plate starts to contact with the top of the isolation plate and pushes the isolation plate downwards to drive the fixing plate to move downwards, so that the first spring is stretched, the battery pack is extruded to deform and expand around, at the moment, the expanded part of the battery pack is blocked by the isolation plate, so that the battery pack cannot expand outwards, the protection range of the battery pack is reduced while the protection of the battery box is simulated, and the protection efficiency is improved;
through being provided with the division board along with moving down under the pressure of acupuncture stripper plate, make by the extrusion and keep off inside the protective area that the division board formed to the battery package of peripheral expansion deformation, on the one hand, make the safeguard function when the region that four relatively confined division boards formed can simulate the striking of battery box to the battery package, improve the detection efficiency of battery package, and simultaneously, the separation is avoided the battery package when taking place dangerous explosion most impact force and flare through mobilizable division board, the protectiveness has been strengthened, the protection efficiency is improved.
Preferably, guide posts are fixedly mounted at four corners of the bottom of the placing plate, the guide posts downwards penetrate through the top of the workbench and extend into the workbench, and the bottom ends of the guide posts are in limit contact with the bottom of the inner cavity of the workbench under an initial condition;
as shown in fig. 2, the support of the placing plate is supported by the telescopic end of the hydraulic cylinder, and the four guide posts form a stable support and a real-time guide function for the placing plate, so that the placing plate is more stable in moving, and particularly, under an initial condition, the lower ends of the guide posts are just in limited contact with the bottom of the inner cavity of the workbench, so that a good stable support function is provided for the placing plate, and the stability of the whole device is maintained.
Preferably, the number of the moving columns is four, the four moving columns are distributed in an equidistant circle by taking the horizontal circle center of the fixed table as a reference, and the top ends of the moving columns are in limited contact with the transmission fluid;
the movable column is used for connecting and supporting the acupuncture extrusion plate, when the movable column is pushed downwards by transmission liquid, the movable column can vertically and stably move downwards in order to guarantee that the movable column can vertically and stably move downwards, the acupuncture extrusion plate can vertically and stably move downwards in the process of moving downwards through the arrangement of the four movable columns, the transmission liquid starts to flow into the upper part of the inner cavity of the movable groove along with the downward movement of the movable column, hydraulic transmission is completed, and energy consumption is not needed in the process.
Preferably, the number of the sealing cylinders is four, the four sealing cylinders are distributed in an equidistant circumference by taking the horizontal circle center of the fixed table as a reference, and the horizontal center lines of the four sealing cylinders are superposed with the horizontal diagonal line of the needling extrusion plate;
the sealing cylinder is used for communicating with the fixed station, and provides a space for the flowing force transfer and the placement of the transmission liquid, along with the upward movement of the sealing column, the transmission liquid in the liquid storage tank flows downwards under the pushing of the sealing column, and starts to push the moving column to move downwards to finish the transmission of pressure.
Preferably, the bottom end of the sealing cylinder penetrates through the top of the test bed downwards and extends to the middle of the inner cavity of the test bed, and the sealing column is upwards sealed and sleeved into the liquid storage tank;
sealing cylinder fixed mounting is at the top of test bench, and it is sealed cup jointing to mainly be with sealed post for the pneumatic cylinder is placing the board and sealed post when shifting up in the drive, turns into the mobility of transmission liquid with sealed post rebound's displacement volume, thereby accomplishes seamless transmission, as shown in fig. 3, because sealed post is sealed cup jointed in the inside of reservoir, makes the transmission liquid can not leak out, thereby has guaranteed to remove the driven reliability of post.
Preferably, the shape of the sealing cylinder is an L shape after rotating for 180 degrees, and the top end of the sealing cylinder is bent for 90 degrees and then is communicated with the fixed platform;
as shown in fig. 3, the shape design of the sealing cylinder utilizes the internal transmission fluid to complete the vertical conversion of the pressure, and in the process, the interior of the liquid storage tank can not be ground, thereby prolonging the service life of the sealing cylinder.
Preferably, the top of each isolation plate is in an arc transition design, and the four isolation plates form a rectangular surrounding ring;
the top of division board can carry out the rigidity inflation with acupuncture stripper plate, and the circular arc transitional design at division board top can greatly reduce the corner wearing and tearing and the uneven problem of holistic atress that lead to because of assaulting when division board and the contact of acupuncture stripper plate.
The invention has the following beneficial effects:
1. the invention drives the sealing column to move upwards by driving the sealing column to move when the hydraulic cylinder drives the placing plate to move upwards by the transmission liquid, so that the transmission liquid pushes the moving column downwards, the upward impact force of the hydraulic cylinder is converted into downward pressure without being changed by the characteristic that the transmission fluid can not be compressed, when the needling extrusion plate moves downwards, the hydraulic cylinder drives the placing plate and the battery pack to move upwards synchronously, so that the movement of the battery pack has initial acceleration, when the needling extrusion plate carries out needling extrusion on the battery pack, the needling extrusion plate and the battery pack collide with each other, thereby simulating the impact force caused by real automobile collision, simultaneously, the battery pack is provided with the isolation plate to simulate the protection function of the battery box, therefore, the needling extrusion test result of the battery pack is more fit on the spot, and the test accuracy is improved.
2. The page that the transmission fluid is located stock solution intracavity portion highly is less than the height value in stock solution chamber, thereby make to possess the space between transmission fluid and the stock solution chamber, when the pneumatic cylinder drives places board and sealed post rebound, sealed post is through promoting the hydraulic drive of transmission fluid completion to removing post and acupuncture stripper plate, when flexible end of pneumatic cylinder is flexible to the assigned position, the impact force of pneumatic cylinder is alleviated through the air of extrusion stock solution intracavity portion, make the flexible of pneumatic cylinder obtain the buffering, because the air is can the compressed, the drawback that pneumatic cylinder self unstability brought can be absorbed to the compressed air.
3. According to the battery pack protection device, the isolation plates move downwards under the pressure of the needling extrusion plate, so that the battery pack which is extruded and expands and deforms towards the periphery is blocked in the protection area formed by the isolation plates, on one hand, the area formed by the four relatively closed isolation plates can simulate the protection function of a battery box when the battery pack is impacted, the detection efficiency of the battery pack is improved, meanwhile, the movable isolation plates can prevent most impact force and fire light of the battery pack from being blocked when dangerous explosion occurs, the protection performance is enhanced, and the protection efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front cut-away schematic view of the structure of the present invention;
FIG. 3 is a schematic view in oblique section of the structure of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 3 at A according to the present invention;
FIG. 5 is a schematic diagram showing the separation of the hydraulic cylinder, the mounting plate, the battery pack, the spacer, the fixing plate, the first spring, the guide post and the sealing post according to the present invention;
FIG. 6 is a schematic view of the separation plate, the fixed plate and the first spring of the present invention in isolation;
FIG. 7 is a schematic diagram showing the separation of the stationary platen, the needle board, the sealing cylinder, the movable post and the second spring in accordance with the present invention;
FIG. 8 is a schematic diagram showing the separation of the hydraulic cylinder, the placing plate, the battery pack, the isolation plate, the guide post, the sealing post, the fixing table, the needle-punching press plate and the sealing cylinder according to the present invention.
In the figure: 1. a work table; 2. a hydraulic cylinder; 3. placing the plate; 4. a battery pack; 5. a separator plate; 6. a fixing plate; 7. a first spring; 8. a guide post; 9. sealing the column; 10. a fixed table; 11. needling the extrusion plate; 12. a sealing cylinder; 13. a liquid storage cavity; 14. a transmission fluid; 15. a moving groove; 16. moving the column; 17. a second spring; 18. a through hole; 19. a liquid storage tank; 20. a test bed; 21. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, in the embodiment of the invention, a needling extrusion test bed for a new energy automobile battery pack comprises a workbench 1 and a battery pack 4, a test bed 20 is fixedly installed at the top of the workbench 1, a hydraulic cylinder 2 is fixedly installed at the bottom of an inner cavity of the workbench 1, a placing plate 3 is fixedly installed at a telescopic end of the hydraulic cylinder 2, a sealing column 9 is fixedly installed at the top of the placing plate 3, a fixed table 10 is fixedly installed at the top of the test bed 20, a liquid storage cavity 13 is formed inside the fixed table 10, a moving groove 15 is formed at the bottom of the liquid storage cavity 13, a moving column 16 and a second spring 17 are hermetically sealed inside the moving groove 15, a needling extrusion plate 11 is fixedly installed at the bottom of the moving column 16, a sealing cylinder 12 is fixedly communicated with the outer surface of the fixed table 10, a liquid storage tank 19 is formed inside the sealing cylinder 12, transmission liquid 14 is filled in the liquid storage cavity 13 and the liquid storage tank 19, the top of the placing plate 3 is movably clamped with an isolation plate 5, the bottom of the isolation plate 5 is fixedly provided with a fixed plate 6, and a first spring 7 is arranged between the fixed plate 6 and the placing plate 3;
as shown in fig. 3, the hydraulic cylinder 2 is opened and drives the placing plate 3 and the sealing column 9 to move upwards, so that the transmission fluid 14 in the liquid storage tank 19 and the liquid storage cavity 13 is extruded and driven along with the upward movement of the sealing column 9, the transmission fluid 14 starts to push the moving column 16 downwards, as shown in fig. 2, the transmission fluid 14 drives the moving column 16 to move downwards through hydraulic pressure, so that the second spring 17 is compressed, the transmission fluid 14 enters the upper space of the inner cavity of the moving groove 15, meanwhile, the placing plate 3 drives the battery pack 4 to move upwards, the moving column 16 drives the acupuncture squeezing plate 11 to rapidly contact with the battery pack 4 downwards, as the placing plate 3 and the acupuncture squeezing plate 11 are linked up and down, the hydraulic cylinder 2 is opened at full speed directly, the test squeezing force acting on the battery pack 4 has the impact force simulating real traffic accidents through the upward relative impact force of the battery pack 4 and the hydraulic transmission of the acupuncture squeezing plate 11 through the transmission fluid 14, simultaneously, along with battery package 4 is by acupuncture stripper plate 11 extrusion deformation, acupuncture stripper plate 11 begins the spacing contact in top with division board 5 for battery package 4 that takes place horizontal deformation is wrapped up by division board 5, and the protection of battery case to battery package 4 is simulated, thereby accomplishes battery package 4's acupuncture extrusion test.
When the hydraulic cylinder 2 drives the placing plate 3 to move upwards by being provided with the transmission liquid 14, the sealing column 9 is driven to move upwards to push the transmission liquid 14 to flow, so that the transmission liquid 14 pushes the moving column 16 downwards, the upward impact force of the hydraulic cylinder 2 is converted into downward pressure by the characteristic that the transmission liquid 14 cannot be compressed, the hydraulic cylinder 2 drives the placing plate 3 and the battery pack 4 to move upwards synchronously while the needling extrusion plate 11 moves downwards, so that the battery pack 4 moves at an initial acceleration, when the needling extrusion plate 11 carries out needling extrusion on the battery pack 4, the needling extrusion plate and the battery pack collide with each other, so that the impact force caused by real automobile impact is simulated, meanwhile, the battery pack 4 is simulated by being provided with the isolation plate 5 to simulate the protection function of a battery box, so that the needling extrusion test result of the battery pack 4 is more fit, thereby improving the accuracy of the test.
The liquid storage tank 19 is communicated with the liquid storage cavity 13, the volume value of the transmission liquid 14 is smaller than the sum of the volume values of the liquid storage tank 19 and the liquid storage cavity 13, the outer surface of the moving column 16 is movably sleeved with a second spring 17, and two ends of the second spring 17 are fixedly connected with the moving column 16 and the moving groove 15 respectively;
as shown in fig. 2, transmission liquid 14 is located the inside page height degree that is less than stock solution chamber 13 of stock solution chamber 13, thereby make to possess the space between transmission liquid 14 and the stock solution chamber 13, when pneumatic cylinder 2 drives and places board 3 and sealed post 9 rebound, sealed post 9 accomplishes the hydraulic drive to removing post 16 and acupuncture stripper plate 11 through promoting transmission liquid 14, when the flexible end of pneumatic cylinder 2 is flexible to the assigned position, the impact force of pneumatic cylinder 2 is alleviated through the inside air of extrusion stock solution chamber 13, make the flexible of pneumatic cylinder 2 obtain the buffering, because the air can the compressed, the drawback that pneumatic cylinder 2 self unstability brought can be absorbed to the compressed air.
The top of the placing plate 3 is provided with four clamping grooves 21, the inside of each clamping groove 21 is movably clamped with an isolation plate 5, the bottoms of the four isolation plates 5 are fixedly provided with a fixing plate 6, the middle part of the fixing plate 6 is provided with a through hole 18, the number of the first springs 7 is four, the four first springs 7 are distributed in an equidistant circumference mode by taking the horizontal circle center of the through hole 18 as a reference, and the diameter value of the through hole 18 is larger than that of the telescopic end of the hydraulic cylinder 2;
as shown in fig. 2, when the hydraulic cylinder 2 drives the placing plate 3 and the battery pack 4 to move upwards, the needling extrusion plate 11 moves downwards under the action of the sealing column 9, the transmission fluid 14 and the moving column 16, the needling extrusion plate 11 starts needling extrusion on the battery pack 4, so that the battery pack 4 deforms, and along with the downward movement of the needling extrusion plate 11, the needling extrusion plate 11 starts to contact with the top of the isolation plate 5 and pushes the isolation plate 5 downwards, so as to drive the fixing plate 6 to move downwards, so that the first spring 7 is stretched, the battery pack 4 is extruded to deform and expand around, at the moment, the expanded part of the battery pack 4 is blocked inside by the isolation plate 5, so that the battery pack cannot expand outwards, the protection range of the battery pack 4 is reduced while the protection of the battery box is simulated, and the protection efficiency is improved;
through being provided with division board 5 along with moving down under the pressure of acupuncture stripper plate 11, make by the extrusion and be kept off inside the protection zone that division board 5 formed to peripheral expansion deformation's battery package 4, on the one hand, make the safeguard function when the region that four division boards 5 that seal relatively formed can simulate the battery box to the striking of battery package 4, improve battery package 4's detection efficiency, and simultaneously, the separation of battery package 4 when taking place dangerous explosion is avoided most impact force and flare to fall through mobilizable division board 5, the protectiveness has been strengthened, the protection efficiency is improved.
Wherein, four corners of the bottom of the placing plate 3 are fixedly provided with guide posts 8, the guide posts 8 downwards penetrate through the top of the workbench 1 and extend into the workbench 1, and the bottom ends of the guide posts 8 are in limit contact with the bottom of the inner cavity of the workbench 1 under the initial condition;
as shown in fig. 2, the support of the placing plate 3 is provided with a guide post 8 besides the telescopic end support from the hydraulic cylinder 2, and the four guide posts 8 form a stable support and a real-time guide function for the placing plate 3, so that the placing plate 3 is more stable when moving, and especially under an initial condition, the lower end of the guide post 8 is just in limited contact with the bottom of the inner cavity of the workbench 1, thereby providing a good stable support function for the placing plate 3 and maintaining the stability of the whole device.
The number of the movable columns 16 is four, the four movable columns 16 are distributed in an equidistant circle by taking the horizontal circle center of the fixed table 10 as a reference, and the top ends of the movable columns 16 are in limited contact with the transmission fluid 14;
the movable columns 16 are used for connecting and supporting the acupuncture squeezing plates 11, when the movable columns 16 are pushed downwards by the transmission liquid 14, in order to ensure that the movable columns 16 can vertically and stably move downwards, the four movable columns 16 are arranged to ensure that the acupuncture squeezing plates 11 can vertically and stably move in the downward movement process, and along with the downward movement of the movable columns 16, the transmission liquid 14 starts to flow into the upper parts of the inner cavities of the movable grooves 15 to complete hydraulic transmission, and energy sources do not need to be consumed in the process.
The number of the sealing cylinders 12 is four, the four sealing cylinders 12 are distributed in an equidistant circumference by taking the horizontal circle center of the fixed table 10 as a reference, and the horizontal center lines of the four sealing cylinders 12 are superposed with the horizontal diagonal lines of the needling extrusion plate 11;
the sealing cylinder 12 is used for communicating with the fixed station 10 and providing a space for the flowing force transmission and placement of the transmission fluid 14, along with the upward movement of the sealing column 9, the transmission fluid 14 in the liquid storage tank 19 flows downwards under the pushing of the sealing column 9 and starts to push the moving column 16 to move downwards, the transmission of pressure is completed, and the transmission abrasion of the hydraulic cylinder 2 on the moving column 16 is small in the initial stage of the upward movement of the sealing column 9 because the fluid cannot be compressed.
The bottom end of the sealing cylinder 12 downwards penetrates through the top of the test bed 20 and extends to the middle of the inner cavity of the test bed 20, and the sealing column 9 upwards is in sealing sleeve connection and enters the interior of the liquid storage tank 19;
the sealing cylinder 12 is fixedly installed at the top of the test bed 20, and is mainly used for sealing and sleeving the sealing column 9, so that when the hydraulic cylinder 2 moves the placing plate 3 and the sealing column 9 to move upwards, the displacement of the upward movement of the sealing column 9 is converted into the mobility of the transmission liquid 14, and seamless transmission is completed, as shown in fig. 3, the sealing column 9 is hermetically sleeved in the liquid storage tank 19, so that the transmission liquid 14 cannot leak out, and the transmission reliability of the moving column 16 is ensured.
Wherein, the shape of the sealing cylinder 12 is L-shaped after rotating 180 degrees, and the top end of the sealing cylinder 12 is bent 90 degrees and then communicated with the fixed station 10;
as shown in fig. 3, the shape of the cartridge 12 is designed to achieve a vertical translation of the pressure by the internal transmission fluid 14, during which the interior of the reservoir 19 does not undergo any grinding, thereby increasing the useful life of the cartridge 12.
The top of each isolation plate 5 is in an arc transition design, and the four isolation plates 5 form a rectangular surrounding ring;
the top of division board 5 can carry out the rigidity inflation with acupuncture stripper plate 11, and the circular arc transitional design at division board 5 top can greatly reduce the corner wearing and tearing and the uneven problem of holistic atress that lead to because of assaulting when division board 5 contacts with acupuncture stripper plate 11.
The working principle and the using process are as follows:
firstly, as shown in fig. 3, the hydraulic cylinder 2 is opened and drives the placing plate 3 and the sealing column 9 to move upwards, so that the transmission fluid 14 in the liquid storage tank 19 and the liquid storage cavity 13 is extruded and driven along with the upward movement of the sealing column 9, the transmission fluid 14 starts to push the moving column 16 downwards, as shown in fig. 2, the transmission fluid 14 drives the moving column 16 to move downwards through hydraulic pressure, so that the second spring 17 is compressed, the transmission fluid 14 enters the upper space of the inner cavity of the moving groove 15, meanwhile, the placing plate 3 drives the battery pack 4 to move upwards, the moving column 16 drives the acupuncture squeezing plate 11 to rapidly contact with the battery pack 4 downwards, as the placing plate 3 and the acupuncture squeezing plate 11 are linked up and down, therefore, the hydraulic cylinder 2 is directly opened at full speed, the test has impact force simulating real traffic accidents through the upward relative impact force of the battery pack 4 and the hydraulic transmission of the acupuncture squeezing plate 11 through the transmission fluid 14, meanwhile, as the battery pack 4 is extruded and deformed by the needling extrusion plate 11, the needling extrusion plate 11 starts to be in limit contact with the top of the isolation plate 5, so that the battery pack 4 which is transversely deformed is wrapped by the isolation plate 5, the protection of the battery pack 4 by the battery box is simulated, and the needling extrusion test of the battery pack 4 is completed;
then, as shown in fig. 2, the height of the page of the transmission fluid 14 in the fluid storage cavity 13 is lower than the height of the fluid storage cavity 13, so that a gap is reserved between the transmission fluid 14 and the fluid storage cavity 13, when the hydraulic cylinder 2 drives the placing plate 3 and the sealing column 9 to move upwards, the sealing column 9 pushes the transmission fluid 14 to complete hydraulic transmission of the moving column 16 and the needling squeezing plate 11, when the telescopic end of the hydraulic cylinder 2 stretches to a specified position, the impact force of the hydraulic cylinder 2 is relieved by squeezing the air in the fluid storage cavity 13, so that the stretching of the hydraulic cylinder 2 is buffered, and the compressed air can absorb the defects caused by instability of the hydraulic cylinder 2;
finally, as shown in fig. 2, when the hydraulic cylinder 2 drives the placing plate 3 and the battery pack 4 to move upwards, the needling extrusion plate 11 moves downwards under the action of the sealing column 9, the transmission fluid 14 and the moving column 16, the needling extrusion plate 11 starts to perform needling extrusion on the battery pack 4, so that the battery pack 4 deforms, and along with the downward movement of the needling extrusion plate 11, the needling extrusion plate 11 starts to contact with the top of the isolation plate 5 and pushes the isolation plate 5 downwards, so that the fixing plate 6 is driven to move downwards, the first spring 7 is stretched, the battery pack 4 is extruded to deform and expand around, at the moment, the expanded part of the battery pack 4 is blocked inside by the isolation plate 5, so that the battery pack cannot expand outwards, the protection range of the battery pack 4 is reduced while the protection of the battery box is simulated, and the protection efficiency is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a acupuncture extrusion test platform for new energy automobile battery package, includes workstation (1) and battery package (4), the top fixed mounting of workstation (1) has test bench (20), the bottom fixed mounting of workstation (1) inner chamber has pneumatic cylinder (2), its characterized in that: the device is characterized in that a placing plate (3) is fixedly mounted at the telescopic end of the hydraulic cylinder (2), a sealing column (9) is fixedly mounted at the top of the placing plate (3), a fixed table (10) is fixedly mounted at the top of the test bed (20), a liquid storage cavity (13) is formed in the fixed table (10), a moving groove (15) is formed in the bottom of the liquid storage cavity (13), a moving column (16) and a second spring (17) are sleeved in the moving groove (15) in a sealing manner, a needling extrusion plate (11) is fixedly mounted at the bottom of the moving column (16), a sealing barrel (12) is fixedly communicated with the outer surface of the fixed table (10), a liquid storage tank (19) is formed in the sealing barrel (12), transmission liquid (14) is filled in the liquid storage cavity (13) and the liquid storage tank (19), and an isolation plate (5) is movably clamped at the top of the placing plate (3), the bottom fixed mounting of division board (5) has fixed plate (6), be provided with spring (7) between fixed plate (6) and place board (3).
2. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the liquid storage tank (19) is communicated with the liquid storage cavity (13), the volume value of the transmission liquid (14) is smaller than the sum of the volume values of the liquid storage tank (19) and the liquid storage cavity (13), the outer surface of the movable column (16) is movably sleeved with a second spring (17), and two ends of the second spring (17) are fixedly connected with the movable column (16) and the movable groove (15) respectively.
3. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: four draw-in grooves (21), every have been seted up at the top of placing board (3) the inside equal activity joint of draw-in groove (21) has division board (5), four the bottom fixed mounting of division board (5) has fixed plate (6), through-hole (18) have been seted up at the middle part of fixed plate (6), the quantity of spring (7) is four, four spring (7) use the horizontal centre of a circle of through-hole (18) to be equidistant circumference distribution as the benchmark, the diameter value of through-hole (18) is greater than the diameter value of the flexible end of pneumatic cylinder (2).
4. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the equal fixed mounting in four corners department of placing board (3) bottom has guide post (8), guide post (8) run through the top of workstation (1) downwards and extend to the inside of workstation (1), the bottom of guide post (8) is in the spacing contact in bottom of initial condition with workstation (1) inner chamber.
5. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the number of the movable columns (16) is four, the four movable columns (16) are distributed in an equidistant circle by taking the horizontal circle center of the fixed table (10) as a reference, and the top ends of the movable columns (16) are in limited contact with the transmission liquid (14).
6. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the number of the sealing cylinders (12) is four, the four sealing cylinders (12) are distributed at equal intervals circumferentially on the basis of the horizontal circle center of the fixing table (10), and the horizontal center lines of the four sealing cylinders (12) are coincided with the horizontal diagonal lines of the needling extrusion plate (11).
7. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the bottom end of the sealing cylinder (12) downwards penetrates through the top of the test bed (20) and extends to the middle of the inner cavity of the test bed (20), and the sealing column (9) upwards is in sealing sleeve connection with the inside of the liquid storage tank (19).
8. The needling extrusion test bed for the new energy automobile battery pack according to claim 1 is characterized in that: the shape of the sealing cylinder (12) is L-shaped after rotating for 180 degrees, and the top end of the sealing cylinder (12) is bent for 90 degrees and then is communicated with the fixed table (10).
9. The needling extrusion test bed for the new energy automobile battery pack according to claim 3, is characterized in that: the top of division board (5) is circular arc transition design, four division board (5) form a rectangle encirclement ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472237.6A CN114199687A (en) | 2021-12-06 | 2021-12-06 | A acupuncture extrusion test platform for new energy automobile battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472237.6A CN114199687A (en) | 2021-12-06 | 2021-12-06 | A acupuncture extrusion test platform for new energy automobile battery package |
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| Publication Number | Publication Date |
|---|---|
| CN114199687A true CN114199687A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111472237.6A Withdrawn CN114199687A (en) | 2021-12-06 | 2021-12-06 | A acupuncture extrusion test platform for new energy automobile battery package |
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| Country | Link |
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| CN (1) | CN114199687A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166567A (en) * | 2022-09-07 | 2022-10-11 | 苏州清研精准汽车科技有限公司 | Battery pack detection device and application method |
| CN115639477A (en) * | 2022-12-26 | 2023-01-24 | 中汽研汽车工业工程(天津)有限公司 | Power battery pack test loading method, control device, equipment and medium |
| CN117233001A (en) * | 2023-11-10 | 2023-12-15 | 珠海市嘉德电能科技有限公司 | Safety performance detection device and detection method for power battery |
-
2021
- 2021-12-06 CN CN202111472237.6A patent/CN114199687A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115166567A (en) * | 2022-09-07 | 2022-10-11 | 苏州清研精准汽车科技有限公司 | Battery pack detection device and application method |
| CN115639477A (en) * | 2022-12-26 | 2023-01-24 | 中汽研汽车工业工程(天津)有限公司 | Power battery pack test loading method, control device, equipment and medium |
| CN115639477B (en) * | 2022-12-26 | 2023-03-10 | 中汽研汽车工业工程(天津)有限公司 | Power battery pack test loading method, control device, equipment and medium |
| CN117233001A (en) * | 2023-11-10 | 2023-12-15 | 珠海市嘉德电能科技有限公司 | Safety performance detection device and detection method for power battery |
| CN117233001B (en) * | 2023-11-10 | 2024-02-13 | 珠海市嘉德电能科技有限公司 | Safety performance detection device and detection method for power battery |
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Application publication date: 20220318 |