CN109406065A - A kind of side's shell lithium battery casing air-tightness detection device - Google Patents
A kind of side's shell lithium battery casing air-tightness detection device Download PDFInfo
- Publication number
- CN109406065A CN109406065A CN201910009436.XA CN201910009436A CN109406065A CN 109406065 A CN109406065 A CN 109406065A CN 201910009436 A CN201910009436 A CN 201910009436A CN 109406065 A CN109406065 A CN 109406065A
- Authority
- CN
- China
- Prior art keywords
- shell
- plate
- fixed
- block
- lithium battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000001307 helium Substances 0.000 claims abstract description 39
- 229910052734 helium Inorganic materials 0.000 claims abstract description 39
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 42
- 239000000872 buffer Substances 0.000 claims description 26
- 238000007667 floating Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 7
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000010009 beating Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention provides a kind of side's shell lithium battery casing air-tightness detection devices, comprising: supporting structure component, lifting structure component, lower chamber construction package and upper cavity construction package；The supporting structure component includes bottom plate, top plate and multiple columns；The lower chamber construction package, is set between the bottom plate, for fixing battery case；The lifting structure component is actively lifted on the top plate, for driving the upper cavity construction package to pump；The upper cavity construction package is fixed on the bottom of the lifting structure component, for driving movement by the lifting structure component, is closed or separates with the lower chamber construction package.When the present invention is by fastening upper and lower cavities construction package, lithium battery casing is fully sealed, and by vacuumizing, filling helium, detection, vacuum breaker, the process for arranging helium, helium content is detected, leak rate can be quickly detected and precision is high.
Description
Technical Field
The invention relates to a lithium battery shell sealing detection technology, in particular to a device for detecting air tightness of a square lithium battery shell.
Background
The lithium battery is one of the most common battery types in the current electric vehicle, and the lithium battery rapidly occupies most of the electric vehicle battery market due to the characteristics of high energy density, long cycle service life and the like, so the performance of the lithium battery affects the overall performance of the electric vehicle.
In the lithium battery industry, if the product is sealed badly, the severe consequences such as severe reduction of battery performance, electrolyte leakage, battery bulging and even explosion can be caused, the service life and the safety of the lithium ion battery are seriously influenced, and therefore, the quality of the lithium battery sealing performance is very important.
The lithium ion battery is mainly divided into three types, namely a plastic shell, a metal shell lithium and an aluminum plastic film flexible package lithium ion battery according to different shells, the former lithium ion battery industry mostly adopts water soaking for air tightness detection, the air tightness detection method is difficult to watch by human eyes, data is not quantized, and reliability is low.
Disclosure of Invention
The invention provides a device for detecting the air tightness of a square-shell lithium battery shell, and aims to solve the problems that the traditional lithium battery shell air tightness detection is easy to cause shell deformation, low in detection efficiency and precision and complex in detection operation.
In order to achieve the above object, an embodiment of the present invention provides an apparatus for detecting air tightness of a square-casing lithium battery case, including:
the device comprises a support structure assembly, a lifting structure assembly, a lower cavity structure assembly and an upper cavity structure assembly; wherein,
the support structure assembly comprises a bottom plate, a top plate and a plurality of uprights mounted between the bottom plate and the top plate;
the lower cavity structure assembly is arranged between the bottom plates, is positioned on the same horizontal plane with the bottom plates and is used for fixing the battery shell;
the lifting structure assembly is movably hung on the top plate and used for driving the upper cavity structure assembly to reciprocate up and down;
the upper cavity structure assembly is fixed at the bottom of the lifting structure assembly and is used for being driven to move through the lifting structure assembly and being closed or separated from the lower cavity structure assembly.
Wherein, lower cavity structure subassembly includes:
the lower cavity plate is provided with a sealing groove, a first sealing ring is sleeved in the sealing groove, and the part of the first sealing ring, which is surrounded on the lower cavity plate, is a sealing area;
a lower housing retainer disposed within the sealing zone;
the first bellows connecting joint is arranged below the lower cavity plate, a first end of the first bellows is communicated with the sealing area through a first air hole, the first air hole is formed in the outer side of the lower shell fixing seat, a second end of the first bellows connecting joint is connected with a first vacuum pump through a bellows, the bellows is a first air flow pipeline, and a helium mass spectrometer leak detector and a first electromagnetic valve are arranged on the first air flow pipeline;
and two hydraulic buffers are arranged and are oppositely fixed at the middle point of the side edge of the lower cavity plate.
Wherein, the minor face both sides of inferior valve casing fixing base are provided with positioning fixture structure subassembly, positioning fixture structure subassembly is fixed in through a base on the lower cavity plate, positioning fixture structure subassembly includes:
the guide rail box is divided into an upper box body and a lower box body;
the clamping device comprises a guide column group, a guide column block, a first spring group and a linear bearing, wherein the guide column block is fixed on a panel of an upper box body and is connected with a first end of the guide column group, the guide column group penetrates into the upper box body, the linear bearing is sleeved on the guide column group in the upper box body, a second end of the guide column group penetrates out of the upper box body and is connected with a buffer component, and the second end of the guide column group is sleeved with the first spring group;
the limiting rod stop block is arranged below the first spring group and fixed at the edge of the front end of the base;
the guide rail limiting rod group penetrates through the lower box body, the second end of the guide rail limiting rod group is fixed on the limiting rod stop block, and the second end of the guide rail limiting rod group is sleeved with a second spring group;
the transmission device comprises guide rails, sliding blocks and cam followers, the sliding blocks are relatively fixed on two sides of the bottom surface of the lower box body and are clamped on the guide rails in a sliding mode, the guide rails are relatively fixed on two side edges of the base, and the cam followers are fixed on the side walls of the upper box body.
Wherein, the guide pillar group includes: first guide pillar, second guide pillar, third guide pillar and fourth guide pillar, the buffer unit includes: the second end of the first guide pillar and the second end of the second guide pillar are connected to the first end face of the fixed block together, the first shell outer stop block is mounted on the second end face of the fixed block, the second end of the third guide pillar and the second end of the fourth guide pillar are connected to the first end face of the second shell outer stop block together, and a gasket is mounted on the second end face of the second shell outer stop block.
Wherein, the elevation structure subassembly includes cylinder, lifter plate, guiding axle, tank chain, unsteady joint and unsteady joint connecting block, the cylinder body of cylinder is installed the central point of roof puts, the piston rod of cylinder with unsteady articulate, the joint that floats is in on the unsteady joint connecting block, unsteady joint connecting block is fixed in the central point of lifter plate puts, the lifter plate through four guiding axles movably hoist in the roof below, the roof top is fixed with the tow chain panel beating, the lifter plate top is fixed with down the tow chain panel beating, the both ends of tank chain respectively with go up the tow chain panel beating with tow chain panel beating is connected down.
Wherein, go up cavity structure subassembly includes:
the bottom surface of the upper cavity block is fixed below the lifting plate, a groove is formed in the upper cavity block, and a second air hole and a third air hole are formed in the groove;
the lug plate is oppositely fixed at the midpoint position of the side edge of the bottom surface of the upper cavity block;
the upper shell fixing seat is installed at the center of the groove, a seat opening of the upper shell fixing seat is fixedly provided with a second sealing ring through a sealing rubber gasket blocking piece, an upper shell short edge baffle of the upper shell fixing seat is provided with a second clamping groove, and a second buffer block is fixed in the second clamping groove;
the wedge blocks are arranged at four corners of the upper shell fixing seat;
and the filling block is fixed in the upper shell fixing seat and used for filling the lithium battery shell.
The lifting plate is provided with a first baffle valve, a second corrugated pipe connecting joint, a third corrugated pipe connecting joint, a second electromagnetic valve and a third electromagnetic valve, the first end of the second corrugated pipe connecting joint is connected with the first baffle valve, the second end of the second corrugated pipe connecting joint is communicated with the groove in the upper cavity block through the second air hole, the first end of the third corrugated pipe connecting joint is respectively connected with the second electromagnetic valve and the third electromagnetic valve, the second end of the third corrugated pipe connecting joint is communicated with the groove in the upper cavity block through the third air hole, and the second electromagnetic valve is connected with a second vacuum pump.
The top plate is provided with a fixing plate, a first surface of the fixing plate is connected with a second baffle valve, a first three-way joint is installed on the second baffle valve, a second surface of the fixing plate is connected with a second three-way joint, a first end of the second three-way joint is communicated with the second baffle valve, a second end of the second three-way joint is connected with the first baffle valve through a corrugated pipe, a third end of the second three-way joint is connected with a pressure gauge, and the pressure gauge is installed on the top plate.
The scheme of the invention has the following beneficial effects:
according to the invention, the lithium battery shell is fixed in the lower cavity structure assembly, the upper cavity structure assembly is driven to reciprocate up and down through the lifting structure assembly and is buckled with or separated from the lower cavity structure assembly, when the upper cavity structure assembly and the lower cavity structure assembly are buckled, the lithium battery shell can be completely sealed, the helium content is detected through the processes of vacuumizing, helium filling, detecting, vacuum breaking and helium discharging, and meanwhile, a manometer and a high-precision helium mass spectrometer leak detector are combined to detect the helium content, so that the leak rate can be quickly detected, the precision is high, and the lithium battery shell cannot be damaged by extrusion deformation and the like.
Drawings
FIG. 1 is a schematic structural diagram of an air tightness detection device for a square-shell lithium battery shell according to the present invention;
fig. 2 is a schematic diagram of a lower cavity structure assembly of the air tightness detection device for the square-shell lithium battery shell according to the present invention;
FIG. 3 is a schematic diagram of a positioning fixture assembly of the air tightness detection device for a square-shell lithium battery shell according to the present invention;
fig. 4 is a schematic diagram of a lifting structure assembly of the air tightness detection device for the square lithium battery shell according to the present invention;
fig. 5 is a schematic diagram of an upper cavity structure assembly of the air tightness detection device for a square-casing lithium battery casing according to the present invention.
[ description of reference ]
1-a scaffold structure component; 2-lower cavity structure component; 3-positioning the fixture structure assembly; 4-a lifting structure assembly; 5-upper cavity structure component; 6-a lithium battery case; 7-a second bellows connection joint; 8-a third bellows connection joint; 9-a first flapper valve; 10-a second solenoid valve; 11-a third solenoid valve; 12-a second baffle valve; 13-fixing the plate; 14-a first three-way joint; 15-a second three-way joint; 16-pressure gauge; 101-a top plate; 102-a column; 103-a backplane; 201-lower cavity plate; 202-lower housing holder; 203-oil pressure buffer; 204-a first bellows junction joint; 205-a first sealing ring; 206-a first air vent; 2021-bearing plate; 2022-lower housing stop; 2023-lower shell long edge baffle; 2024-first buffer block; 301-a base; 302-upper box body; 303-lower box body; 304-a lead group; 305-linear bearings; 306-a guide post block; 307-a first spring set; 308-a second spring set; 309-guide rail limit rod group; 310-a cam follower; 311-a slider; 312-a guide rail; 313-a second housing outer stop; 314-fixed block; 315-first housing outer stop; 316-gasket; 317-limit rod stop blocks; 401-lifting plate; 402-a guide shaft; 403-a cylinder; 404-tank chains; 405-upper drag chain sheet metal; 406-lower drag chain sheet metal; 407-a floating joint; 408-floating joint connection block; 501-upper cavity block; 502-ear plate; 503-upper housing mount; 504-sealing the cushion block piece; 505-a second sealing ring; 506-a second buffer block; 507-filling blocks; 508-wedges; 509-second air vent; 510-third air hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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, an embodiment of the present invention provides an apparatus for detecting airtightness of a square-casing lithium battery case 6, including: the device comprises a support structure component 1, a lifting structure component 4, a lower cavity structure component 2 and an upper cavity structure component 5; wherein the supporting structure assembly 1 comprises a bottom plate 103, a top plate 101 and a plurality of upright posts 102, wherein the plurality of upright posts 102 are installed between the bottom plate 103 and the top plate 101; the lower cavity structural component 2 is arranged between the bottom plates 103, is positioned on the same horizontal plane with the bottom plates 103, and is used for fixing a battery shell; the lifting structure component 4 is movably hung on the top plate 101 and is used for driving the upper cavity structure component 5 to do up-and-down reciprocating motion; the upper cavity structure component 5 is fixed at the bottom of the lifting structure component 4 and is used for being driven by the lifting structure component 4 to move so as to be closed or separated from the lower cavity structure component 2.
In the device for detecting the air tightness of the square-shell lithium battery shell 6 according to the embodiment of the invention, the lithium battery shell 6 is fixed in the lower cavity structure assembly 2, the lifting structure assembly 4 is started to drive the upper cavity structure assembly 5 to move downwards until the upper cavity structure assembly and the lower cavity structure assembly 2 are closed to form a sealed cavity, the lithium battery shell 6 is completely sealed, the first vacuum pump is started to pump air into the space between the lithium battery shell 6 and the sealed cavity, when the space environment between the lithium battery shell 6 and the sealed cavity reaches a vacuum state, helium is filled into the lithium battery shell 6, the helium-containing rate in the sealed cavity outside the lithium battery shell 6 is detected by using the helium leak detector, so that the leak rate of the lithium battery shell 6 is obtained, then, the second vacuum pump is started to completely pump the helium in the lithium battery shell 6, and the first vacuum pump and the second vacuum pump are stopped to run at the, then make seal chamber and lithium cell casing 6 communicate with external environment respectively, make seal chamber and lithium cell casing 6 all reach balance with external atmospheric pressure, start again that elevation structure subassembly 4 drives cavity structure subassembly 5 upward movement, repeat above step and can detect the gas tightness of square-shell lithium cell casing 6 fast accurately.
As shown in fig. 2, the lower cavity structure assembly 2 includes: the lower cavity plate 201 is provided with a sealing groove, a first sealing ring 205 is sleeved in the sealing groove, and the part of the first sealing ring 205, which is surrounded on the lower cavity plate 201, is a sealing area; a lower housing retainer 202, said lower housing retainer 202 disposed within said sealed region; a first bellows connecting joint 204, the first bellows connecting joint 204 being installed below the lower cavity plate 201, a first end of the first bellows being communicated with the sealing area through a first air hole 206, the first air hole 206 being disposed outside the lower shell fixing seat 202, a second end of the first bellows connecting joint 204 being connected to a first vacuum pump through a bellows, the bellows being a first air flow pipeline, the first air flow pipeline being installed with a helium mass spectrometer and a first electromagnetic valve; and two hydraulic buffers 203, wherein the two hydraulic buffers 203 are oppositely fixed at the midpoint of the side of the lower cavity plate 201.
The first sealing ring 205 on the lower cavity plate 201 according to the above-mentioned embodiment of the present invention, when the upper and lower cavity structure components are closed, can be completely attached and compacted with the edge of the upper cavity block 501 to ensure that the sealing area inside the first sealing ring 205 is isolated from the external environment, the lower cavity fixing seat 202 is arranged in the sealing area to fix the bottom of the lithium battery shell 6, the sealing area outside the lower cavity fixing seat 202 is provided with a first air hole 206, the first air hole 206 is connected with a first corrugated pipe connecting joint 204, the first corrugated pipe connecting joint 204 is arranged below the lower cavity plate 201, is connected with a first vacuum pump through a corrugated pipe to form a first air flow pipeline, a first electromagnetic valve and a helium mass spectrometer leak detector are respectively arranged on the first air flow pipeline, when the first vacuum pump is started, the first electromagnetic valve is in a closed state, and gas between the sealed cavity and the lithium battery shell 6 is pumped out from the first corrugated pipe connecting joint 204 through the first air hole 206; when helium is filled into the lithium battery shell 6, if helium molecules overflow from the lithium battery shell 6, the helium molecules enter the sealed cavity, the helium molecules are extracted by the first vacuum pump, the helium molecules flow out of the first air hole 206 and reach the vicinity of the helium mass spectrometer leak detector along the first air flow pipeline, and the helium mass spectrometer leak detector can sensitively detect the helium overflow amount, so that the leak rate of the lithium battery shell 6 is accurately judged; after the detection is finished, the first vacuum pump is closed, the first electromagnetic valve is opened, and outside air enters the sealed cavity from the first air hole 206 through the first corrugated pipe connecting joint 204 along the first air flow pipeline, so that the pressure of the inside and outside air of the sealed cavity is balanced.
Further, when the upper and lower cavity structural components are closed, in order to prevent the upper cavity structural component 5 from moving downward too fast, the oil buffer 203 disposed on the side of the lower cavity plate 201 can generate a buffering force on the upper cavity structural component, so that the lower cavity structural component 2 is made to have a slow speed when approaching, and the lithium battery case 6 is prevented from being crushed by too large downward force.
The lower housing fixing seat 202 includes a receiving plate 2021, a lower housing stopper 2022, a lower housing long-side baffle 2023, and a first buffer block 2024, the receiving plate 2021 is fixed at the center of the sealing region, the lower housing stopper 2022 is fixed at four corners of the receiving plate 2021, the lower housing long-side baffle 2023 is relatively fixed on the long side of the housing receiving plate 2021, a first clamping groove is formed in the inner side of the lower housing long-side baffle 2023, and the first buffer block 2024 is embedded in the first clamping groove.
The shape of the bearing plate 2021 according to the above embodiment of the present invention is the same as the bottom of the lithium battery case 6, the lower case baffle is fixed at four corners of the bearing plate 2021, the bottom of the lithium battery case 6 can be just clamped and fixed, and the fixing positions of the lower case baffle at the four corners of the bearing plate 2021 can be adjusted to adapt to the lithium battery cases 6 with different sizes, the lower case long side baffle 2023 mounted on the long side of the bearing plate 2021 can be used for fixing the long side wall of the lithium battery case 6, and meanwhile, the first buffer block 2024 is embedded in the first groove on the inner side of the lower case long side baffle, so as to prevent the long side wall of the lithium battery case 6 from being extruded and deformed under the pressure during fixing.
As shown in fig. 3, the short sides of the lower housing fixing seat 202 are provided with positioning fixture assemblies 3, the positioning fixture assemblies 3 are fixed on the lower housing plate 201 through a base 301, and the positioning fixture assemblies 3 include: a rail box divided into an upper box body 302 and a lower box body 303; the clamping device comprises a guide column group 304, a guide column block 306, a first spring group 307 and a linear bearing 305, wherein the guide column block 306 is fixed on a panel of an upper box body 302 and is connected with a first end of the guide column group 304, the guide column group 304 penetrates through the upper box body 302, the linear bearing 305 is sleeved on the guide column group 304 in the upper box body 302, a second end of the guide column group 304 penetrates through the upper box body 302 and is connected with a buffer assembly, and the first spring group 307 is sleeved on the second end of the guide column group 304; the limit rod stopper 317 is arranged below the first spring group 307 and fixed to the front end edge of the base 301; the guide rail limit rod group 309 penetrates through the lower box body 303, the second end of the guide rail limit rod group 309 is fixed on the limit rod stop 317, and the second end of the guide rail limit rod group 309 is sleeved with a second spring group 308; the transmission device comprises a guide rail 312, a sliding block 311 and a cam follower 310, wherein the sliding block 311 is relatively fixed on two sides of the bottom surface of the lower box 303 and is slidably clamped on the guide rail 312, the guide rail 312 is relatively fixed on two side edges of the base 301, and the cam follower 310 is fixed on the side wall of the upper box 302.
Wherein the guide post set 304 comprises: first guide pillar, second guide pillar, third guide pillar and fourth guide pillar, the buffer unit includes: the second end of the first guide column and the second end of the second guide column are connected to a first end face of the fixed block 314 together, the first outer shell stop 315 is mounted on a second end face of the fixed block 314, the second end of the third guide column and the second end of the fourth guide column are connected to a first end face of the second outer shell stop 313 together, and a gasket 316 is mounted on a second end face of the second outer shell stop 313.
The positioning clamp structure assembly 3 according to the above embodiment of the present invention is disposed on both sides of the short side of the lower housing fixing base 202, and is configured to clamp and fix the short side wall of the lithium battery housing 6 in the lower cavity structure assembly 2, when the upper cavity structure assembly 5 approaches the lower cavity structure assembly 2, the wedge 508 of the upper cavity structure assembly 5 moves downward to push the cam follower 310 to move toward the short side wall of the lithium battery housing 6, the cam follower 310 drives the guide rail box to move toward the short side wall of the lithium battery housing 6 along the guide rail 312, the first housing external stopper 315 and the second housing external stopper 313 on the second end surface of the guide post set 304 contact the short side wall of the lithium battery housing 6, and the first spring set 307 is gradually compressed under the pushing of the guide rail 312 box, and when the upper and lower cavity structure assemblies are completely closed, the first spring set 307 is maximally compressed, the lithium battery case 6 is further firmly fixed by applying a strong clamping force to the short-side walls of the battery case by the first case outer stopper 315 and the second case outer stopper 313.
Further, the cam followers 310 are installed on two side walls of the upper box 302 of the guide rail box, when the guide rail box is driven to move towards the direction of the short side wall of the lithium battery shell 6, the second spring group 308 sleeved on the second end of the guide rail limit rod group 309 butts against the limit rod stopper 317 fixed on the front end edge of the base 301, and after the upper and lower cavity structure assemblies are completely closed, the second spring group 308 is compressed between the lower box 303 and the limit rod stopper 317; after the air tightness test is completed, the upper cavity assembly moves upwards to gradually separate from the lower cavity structure assembly 2, the first spring group 307 and the second spring group 308 start to recover to push the guide rail box to move along the guide rail 312 in the opposite direction of the short side wall of the lithium battery shell 6, the guide column group 304 is far away from the lithium battery shell 6 along with the guide rail box, and the first shell external stopper 315 and the second shell external stopper 313 loosen the short side wall of the lithium battery shell 6; after the upper cavity structural component and the lower cavity structural component are completely separated, the guide rail box can continue to slide along the guide rail 312 after being restored to the position due to the thrust of the first spring group 307 and the second spring group 308, and at the moment, the limiting head at the first end of the guide rail limiting rod group 309 can block the guide rail box to prevent the guide rail box from rushing out of the guide rail 312 due to the inertial sliding.
Further, the fixing block 314 and the first outer casing stopper 315 are connected to the second end of the first guide post and the second end of the second guide post in a superposed manner, the second outer casing stopper 313 is directly connected to the second end of the third guide post and the second end of the fourth guide post, the horizontal planes of the first outer casing stopper 315 and the second outer casing stopper 313 are the same, and the gasket 316 is mounted on the second end surface of the second outer casing stopper 313, so that the pressing force can be uniformly distributed when the short side wall of the lithium battery casing 6 is clamped, the gasket 316 corresponds to the circular recess on the lithium battery casing and is used for being filled in the circular recess, and the gasket 316 also has a buffering effect, so that the short side wall of the lithium battery casing 6 can be prevented from being deformed due to excessive local pressing force.
As shown in fig. 4, the lifting structure component 4 includes a cylinder 403, a lifting plate 401, guide shafts 402, a tank chain 404, a floating joint 407 and a floating joint connecting block 408, the cylinder body of the cylinder 403 is installed at the central position of the top plate 101, the piston rod of the cylinder 403 is connected with the floating joint 407, the floating joint 407 is clamped on the floating joint connecting block 408, the floating joint connecting block 408 is fixed at the central position of the lifting plate 401, the lifting plate 401 is movably hung below the top plate 101 through four guide shafts 402, an upper tow chain metal plate 405 is fixed above the top plate 101, a lower tow chain metal plate 406 is fixed above the lifting plate 401, and two ends of the tank chain 404 are respectively connected with the upper tow chain metal plate 405 and the lower tow chain metal plate 406.
The piston rod of the embodiment of the invention is connected with the floating joint 407, the floating joint 407 is clamped on the floating joint connecting block 408, the floating joint connecting block 408 is fixed at the central position of the lifting plate 401, when the cylinder 403 drives the piston rod to move telescopically, the lifting plate 401 is driven to reciprocate up and down, the four corners of the lifting plate 401 are connected with the guide shafts 402, so that the lifting plate 401 can be ensured not to deviate during the up-and-down movement, the lifting plate 401 is connected with the top plate 101 through the tank chain 404, and the tank chain 404 is also lifted and retracted along with the up-and-down movement of the lifting plate 401, so as to play a role in assisting lifting and pulling of the lifting plate 401.
As shown in fig. 5, the upper cavity structure assembly 5 includes: the bottom surface of the upper cavity block 501 is fixed below the lifting plate 401, a groove is formed in the upper cavity block 501, and a second air hole 509 and a third air hole 510 are formed in the groove; the ear plate 502 is oppositely fixed at the midpoint position of the side edge of the bottom surface of the upper cavity block 501; the upper housing fixing seat 503 is installed at the center of the groove, a second sealing ring 505 is fixed at a seat opening of the upper housing fixing seat 503 through a sealing rubber gasket baffle 504, a second clamping groove is formed in an upper housing short side baffle of the upper housing fixing seat 503, and a second buffer block 506 is fixed in the second clamping groove; wedges 508, wherein the wedges 508 are arranged at four corners of the upper shell fixing seat 503; and the filling block 507 is fixed in the upper shell fixing seat 503 and is used for filling the lithium battery shell 6.
The upper cavity block 501 in the above embodiment of the present invention is fixed below the lifting plate 401, after the upper and lower cavity structural components are closed, the edge of the upper cavity block 501 is compacted with the first sealing ring 205 on the lower cavity plate 201, the groove in the upper cavity block 501 completely covers the sealing area, the seat opening of the upper shell fixing seat 503 is fastened with the upper port of the lithium battery shell 6, meanwhile, the second sealing ring 505 at the seat opening of the upper shell fixing seat 503 is tightly attached to the upper port of the lithium battery shell 6, so as to ensure complete sealing of the lithium battery shell 6, and the second buffer block 506 in the second clamping groove in the upper shell short side baffle plays a role in protecting the upper port of the lithium battery shell 6 when fastened, so as to prevent the short side wall of the lithium battery shell 6 from being extruded and deformed due to the pressure effect when fixed; the wedge block 508 is installed at four corners of the upper casing fixing seat 503, and when the upper and lower cavity structural components are gradually closed, the bevel edge of the wedge block 508 extrudes to push the cam follower 310 to move towards the direction of the short side wall of the lithium battery casing 6; the ear plate 502 is relatively fixed at the midpoint position of the side edge of the bottom surface of the upper cavity block 501 and corresponds to the oil pressure buffer 203 at the side edge of the lower cavity plate 201, and when the upper and lower cavity structure components are closed, the ear plate 502 presses the oil pressure buffer 203 to generate a buffer effect; a second air hole 509 and a third air hole 510 which are formed in the groove are both positioned at the bottom of the upper shell fixing seat 503, the second air hole 509 is used for filling helium gas into the lithium battery shell 6, and the third air hole 510 is used for discharging the helium gas in the lithium battery shell 6; go up casing fixing base 503 and lithium cell casing 6's last port lock, inside filling block 507 embedding lithium cell casing 6 along with, reducible casing internal air capacity increases helium filling speed and practices thrift helium gas filling volume.
A first baffle valve 9, a second bellows joint 7, a third bellows joint 8, a second solenoid valve 10 and a third solenoid valve 11 are further mounted on the lifting plate 401, a first end of the second bellows joint 7 is connected to the first baffle valve 9, a second end of the second bellows joint 7 is communicated with the groove in the upper cavity block 501 through the second air hole 509, a first end of the third bellows joint 8 is connected to the second solenoid valve 10 and the third solenoid valve 11, respectively, a second end of the third bellows joint 8 is communicated with the groove in the upper cavity block 501 through the third air hole 510, and the second solenoid valve 10 is connected to a second vacuum pump.
The top plate 101 is provided with a fixing plate 13, a first surface of the fixing plate 13 is connected with a second baffle valve 12, the second baffle valve 12 is provided with a first three-way joint 14, a second surface of the fixing plate 13 is connected with a second three-way joint 15, a first end of the second three-way joint 15 is communicated with the second baffle valve 12, a second end of the second three-way joint 15 is connected with the first baffle valve 9 through a corrugated pipe, a third end of the second three-way joint 15 is connected with a pressure gauge 16, and the pressure gauge 16 is installed on the top plate 101.
After the upper and lower cavity structural components according to the above embodiments of the present invention are closed, the first vacuum pump is started to start to draw air from the first bellows connection joint 204, at this time, the first flapper valve 9, the second flapper valve 12, the first solenoid valve, the second solenoid valve 10 and the third solenoid valve 11 are all in a closed state, when the air in the sealed cavity is exhausted, the first flapper valve 9 and the second flapper valve 12 are opened, helium is filled from the first three-way joint 14 and enters the second three-way joint 15 through the second flapper valve 12, the second end of the second three-way joint 15 is connected with the first flapper valve 9 through a bellows, the third end of the second three-way joint 15 is connected with the pressure gauge 16, helium is filled from the first flapper valve 9 through the second bellows connection joint 7 into the lithium battery case 6 through the second air hole 509, and at the same time, the pressure gauge 16 displays the helium pressure in the lithium battery case 6, keeping the first vacuum pump running, if helium molecules overflow from the lithium battery shell 6 and enter the sealed cavity, the helium molecules can be pumped out from the first air hole 206 and are sensed and detected by the helium mass spectrometer leak detector;
after the detection is finished, the first baffle valve 9 and the second baffle valve 12 are closed, helium is not filled into the lithium battery shell 6 any more, the second electromagnetic valve 10 is opened at the moment, the second electromagnetic valve 10 is connected with the second vacuum pump, the second vacuum pump is started to pump out residual helium in the lithium battery shell 6 from the third air hole 510, the residual helium is discharged towards the second vacuum pump through the third bellows connecting joint 8, and the second electromagnetic valve 10 is closed after the helium in the lithium battery shell 6 is exhausted, so that the interference influence of the residual helium on the accuracy of the next air tightness detection of the lithium battery shell 6 can be avoided;
then, stopping the operation of the first vacuum pump and the second vacuum pump, starting the first electromagnetic valve, allowing the external gas to enter the sealed cavity from the first air hole 206 through the first corrugated pipe connecting joint 204 along the first air flow pipeline from the first electromagnetic valve, so that the air pressure in the sealed cavity is balanced with the external air pressure; simultaneously, open third solenoid valve 11, external gas gets into from third solenoid valve 11, through third bellows attach fitting 8 thereupon, from third gas pocket 510 entering lithium cell casing 6 for the internal gas pressure of lithium cell casing 6 reaches the equilibrium with external gas pressure, thereby the upper and lower cavity structure subassembly of being convenient for realizes the separation.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides a square-shelled lithium battery shell gas tightness detection device which characterized in that includes: the device comprises a support structure assembly, a lifting structure assembly, a lower cavity structure assembly and an upper cavity structure assembly; wherein,
the support structure assembly comprises a bottom plate, a top plate and a plurality of uprights mounted between the bottom plate and the top plate;
the lower cavity structure assembly is arranged between the bottom plates, is positioned on the same horizontal plane with the bottom plates and is used for fixing the battery shell;
the lifting structure assembly is movably hung on the top plate and used for driving the upper cavity structure assembly to reciprocate up and down;
the upper cavity structure assembly is fixed at the bottom of the lifting structure assembly and is used for being driven to move through the lifting structure assembly and being closed or separated from the lower cavity structure assembly.
2. The apparatus of claim 1, wherein the lower chamber structure assembly comprises:
the lower cavity plate is provided with a sealing groove, a first sealing ring is sleeved in the sealing groove, and the part of the first sealing ring, which is surrounded on the lower cavity plate, is a sealing area;
a lower housing retainer disposed within the sealing zone;
the first bellows connecting joint is arranged below the lower cavity plate, a first end of the first bellows is communicated with the sealing area through a first air hole, the first air hole is formed in the outer side of the lower shell fixing seat, a second end of the first bellows connecting joint is connected with a first vacuum pump through a bellows, the bellows is a first air flow pipeline, and a helium mass spectrometer leak detector and a first electromagnetic valve are arranged on the first air flow pipeline;
and two hydraulic buffers are arranged and are oppositely fixed at the middle point of the side edge of the lower cavity plate.
3. The device for detecting the airtightness of the square-shell lithium battery shell according to claim 2, wherein the lower shell fixing seat includes a receiving plate, a lower shell stopper, a lower shell long-side baffle and a first buffer block, the receiving plate is fixed at the center of the sealing region, the lower shell stopper is fixed at four corners of the receiving plate, the lower shell long-side baffle is relatively fixed on the long side of the shell receiving plate, a first clamping groove is formed in the inner side of the lower shell long-side baffle, and the first buffer block is embedded in the first clamping groove.
4. The device for detecting the airtightness of the square lithium battery shell according to claim 2, further comprising positioning fixture structure components, wherein the positioning fixture structure components are respectively disposed on two sides of the lower shell fixing seat, and are fixed on the lower cavity plate through a base, and the positioning fixture structure components comprise:
the guide rail box is divided into an upper box body and a lower box body;
the clamping device comprises a guide column group, a guide column block, a first spring group and a linear bearing, wherein the guide column block is fixed on a panel of an upper box body and is connected with a first end of the guide column group, the guide column group penetrates into the upper box body, the linear bearing is sleeved on the guide column group in the upper box body, a second end of the guide column group penetrates out of the upper box body and is connected with a buffer component, and the second end of the guide column group is sleeved with the first spring group;
the limiting rod stop block is arranged below the first spring group and fixed at the edge of the front end of the base;
the guide rail limiting rod group penetrates through the lower box body, the second end of the guide rail limiting rod group is fixed on the limiting rod stop block, and the second end of the guide rail limiting rod group is sleeved with a second spring group;
the transmission device comprises guide rails, sliding blocks and cam followers, the sliding blocks are relatively fixed on two sides of the bottom surface of the lower box body and are clamped on the guide rails in a sliding mode, the guide rails are relatively fixed on two side edges of the base, and the cam followers are fixed on the side walls of the upper box body.
5. The square-shelled lithium battery shell airtightness detection apparatus according to claim 4, wherein the guide post group includes: first guide pillar, second guide pillar, third guide pillar and fourth guide pillar, the buffer unit includes: the second end of the first guide pillar and the second end of the second guide pillar are connected to the first end face of the fixed block together, the first shell outer stop block is mounted on the second end face of the fixed block, the second end of the third guide pillar and the second end of the fourth guide pillar are connected to the first end face of the second shell outer stop block together, and a gasket is mounted on the second end face of the second shell outer stop block.
6. The square shell lithium battery shell airtightness detection device according to claim 1, wherein the lifting structure assembly comprises a cylinder, a lifting plate, guide shafts, a tank chain, a floating joint and a floating joint connection block, the cylinder body of the cylinder is installed at the central position of the top plate, the piston rod of the cylinder is connected with the floating joint, the floating joint is connected with the floating joint connection block, the floating joint connection block is fixed at the central position of the lifting plate, the lifting plate is movably hoisted below the top plate through four guide shafts, an upper drag chain metal plate is fixed above the top plate, a lower drag chain metal plate is fixed above the lifting plate, and the two ends of the tank chain are respectively connected with the upper drag chain metal plate and the lower drag chain metal plate.
7. The apparatus of claim 6, wherein the upper chamber structure assembly comprises:
the bottom surface of the upper cavity block is fixed below the lifting plate, a groove is formed in the upper cavity block, and a second air hole and a third air hole are formed in the groove;
the lug plate is oppositely fixed at the midpoint position of the side edge of the bottom surface of the upper cavity block;
the upper shell fixing seat is installed at the center of the groove, a seat opening of the upper shell fixing seat is fixedly provided with a second sealing ring through a sealing rubber gasket blocking piece, an upper shell short edge baffle of the upper shell fixing seat is provided with a second clamping groove, and a second buffer block is fixed in the second clamping groove;
the wedge blocks are arranged at four corners of the upper shell fixing seat;
and the filling block is fixed in the upper shell fixing seat and used for filling the lithium battery shell.
8. The air tightness detection device for the square-shell lithium battery shell according to claim 7, wherein a first baffle valve, a second bellows joint, a third bellows joint, a second solenoid valve and a third solenoid valve are mounted on the lifting plate, a first end of the second bellows joint is connected with the first baffle valve, a second end of the second bellows joint is communicated with the groove in the upper cavity block through the second air hole, a first end of the third bellows joint is respectively connected with the second solenoid valve and the third solenoid valve, a second end of the third bellows joint is communicated with the groove in the upper cavity block through the third air hole, and the second solenoid valve is connected with a second vacuum pump.
9. The apparatus of claim 8, wherein a fixing plate is mounted on the top plate, a second flapper valve is connected to a first surface of the fixing plate, a first tee joint is mounted on the second flapper valve, a second tee joint is connected to a second surface of the fixing plate, a first end of the second tee joint is communicated with the second flapper valve, a second end of the second tee joint is connected to the first flapper valve through a bellows, a third end of the second tee joint is connected to a pressure gauge, and the pressure gauge is mounted on the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009436.XA CN109406065B (en) | 2019-01-04 | 2019-01-04 | Air tightness detection device for square-shell lithium battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009436.XA CN109406065B (en) | 2019-01-04 | 2019-01-04 | Air tightness detection device for square-shell lithium battery shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109406065A true CN109406065A (en) | 2019-03-01 |
| CN109406065B CN109406065B (en) | 2021-11-19 |
Family
ID=65462342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910009436.XA Active CN109406065B (en) | 2019-01-04 | 2019-01-04 | Air tightness detection device for square-shell lithium battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109406065B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082047A (en) * | 2019-04-15 | 2019-08-02 | 合肥国轩高科动力能源有限公司 | Upper cover plate compression protection device for lithium battery pack sealing test |
| CN110091269A (en) * | 2019-04-02 | 2019-08-06 | 大族激光科技产业集团股份有限公司 | Battery helium examines clamping device |
| CN110103158A (en) * | 2019-04-02 | 2019-08-09 | 大族激光科技产业集团股份有限公司 | Battery helium examines clamping device |
| CN110417617A (en) * | 2019-07-04 | 2019-11-05 | 江苏华兮网络科技工程有限公司 | A kind of network engineering has the detection devices of the more receiving vacuum functions of lifting |
| CN111999013A (en) * | 2020-09-07 | 2020-11-27 | 湖南钒谷新能源技术有限公司 | Diaphragm gas tightness detection device |
| CN112729700A (en) * | 2019-10-28 | 2021-04-30 | 无锡新迪新能源车业有限公司 | Quick detection device of lithium cell group |
| CN113267299A (en) * | 2021-05-17 | 2021-08-17 | 中国第一汽车股份有限公司 | Battery box body leakage detection device and detection method |
| CN113363549A (en) * | 2021-05-18 | 2021-09-07 | 镇江成泰自动化技术有限公司 | Sealed bin for filling nitrogen into aluminum battery |
| CN113804364A (en) * | 2021-09-10 | 2021-12-17 | 浙江工业大学之江学院 | Battery air tightness detection device and use method |
| CN113964398A (en) * | 2021-10-13 | 2022-01-21 | 合肥召洋电子科技有限公司 | Battery pack shell dismounting and replacing structure and dismounting and replacing tool thereof |
| CN114791345A (en) * | 2022-04-29 | 2022-07-26 | 佛山市天劲新能源科技有限公司 | Battery box body sealing performance detection system |
| CN115096516A (en) * | 2022-07-04 | 2022-09-23 | 深圳市誉辰智能装备股份有限公司 | Double-vacuum four-cavity air tightness detection method and detection machine for square-shell battery |
| CN115326299A (en) * | 2022-10-17 | 2022-11-11 | 徐州卓谷新能源科技有限公司 | Lithium battery shell air tightness detection device |
| CN115342987A (en) * | 2022-10-18 | 2022-11-15 | 烟台市永盛密封科技有限公司 | Sealing effect check out test set of sealing washer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179975A (en) * | 2010-03-01 | 2011-09-15 | Ts:Kk | Device and method for inspecting leakage |
| CN103471783A (en) * | 2013-10-09 | 2013-12-25 | 中国东方电气集团有限公司 | Nondestructive sodium battery leakage detecting method |
| CN203502184U (en) * | 2013-09-13 | 2014-03-26 | 凯迈（江苏）机电有限公司 | Airtight detection device for lithium battery |
| CN203785851U (en) * | 2014-03-20 | 2014-08-20 | 山西皇城相府中道能源有限公司 | Lithium ion battery automation leakage detection equipment |
| CN105784288A (en) * | 2014-12-23 | 2016-07-20 | 中国电子科技集团公司第十八研究所 | Nickel-cadmium battery helium mass spectrometer leak rate test method |
| WO2017120452A1 (en) * | 2016-01-08 | 2017-07-13 | Tsi, Inc. | Wearable mask fit monitor |
| CN108237089A (en) * | 2017-12-27 | 2018-07-03 | 深圳市誉辰自动化设备有限公司 | For detecting the test system of battery aluminum shell air-tightness |
| CN208076109U (en) * | 2018-04-13 | 2018-11-09 | 河南鑫旺达电源科技有限公司 | A kind of lithium battery air-tightness detection device |
| CN108982019A (en) * | 2017-06-05 | 2018-12-11 | 张家港市欧微自动化研发有限公司 | A kind of lithium battery air tight test device |
-
2019
- 2019-01-04 CN CN201910009436.XA patent/CN109406065B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011179975A (en) * | 2010-03-01 | 2011-09-15 | Ts:Kk | Device and method for inspecting leakage |
| CN203502184U (en) * | 2013-09-13 | 2014-03-26 | 凯迈（江苏）机电有限公司 | Airtight detection device for lithium battery |
| CN103471783A (en) * | 2013-10-09 | 2013-12-25 | 中国东方电气集团有限公司 | Nondestructive sodium battery leakage detecting method |
| CN203785851U (en) * | 2014-03-20 | 2014-08-20 | 山西皇城相府中道能源有限公司 | Lithium ion battery automation leakage detection equipment |
| CN105784288A (en) * | 2014-12-23 | 2016-07-20 | 中国电子科技集团公司第十八研究所 | Nickel-cadmium battery helium mass spectrometer leak rate test method |
| WO2017120452A1 (en) * | 2016-01-08 | 2017-07-13 | Tsi, Inc. | Wearable mask fit monitor |
| CN108982019A (en) * | 2017-06-05 | 2018-12-11 | 张家港市欧微自动化研发有限公司 | A kind of lithium battery air tight test device |
| CN108237089A (en) * | 2017-12-27 | 2018-07-03 | 深圳市誉辰自动化设备有限公司 | For detecting the test system of battery aluminum shell air-tightness |
| CN208076109U (en) * | 2018-04-13 | 2018-11-09 | 河南鑫旺达电源科技有限公司 | A kind of lithium battery air-tightness detection device |
Non-Patent Citations (1)
| Title |
|---|
| 赵宏伟 等: "空间用氢镍电池密封性能检验方法", 《电源技术》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091269A (en) * | 2019-04-02 | 2019-08-06 | 大族激光科技产业集团股份有限公司 | Battery helium examines clamping device |
| CN110103158A (en) * | 2019-04-02 | 2019-08-09 | 大族激光科技产业集团股份有限公司 | Battery helium examines clamping device |
| CN110082047B (en) * | 2019-04-15 | 2021-12-14 | 合肥国轩高科动力能源有限公司 | Upper cover plate compression protection device for lithium battery pack sealing test |
| CN110082047A (en) * | 2019-04-15 | 2019-08-02 | 合肥国轩高科动力能源有限公司 | Upper cover plate compression protection device for lithium battery pack sealing test |
| CN110417617A (en) * | 2019-07-04 | 2019-11-05 | 江苏华兮网络科技工程有限公司 | A kind of network engineering has the detection devices of the more receiving vacuum functions of lifting |
| CN112729700A (en) * | 2019-10-28 | 2021-04-30 | 无锡新迪新能源车业有限公司 | Quick detection device of lithium cell group |
| CN112729700B (en) * | 2019-10-28 | 2023-09-12 | 无锡新迪新能源车业有限公司 | Quick detection device of lithium battery pack |
| CN111999013A (en) * | 2020-09-07 | 2020-11-27 | 湖南钒谷新能源技术有限公司 | Diaphragm gas tightness detection device |
| CN113267299A (en) * | 2021-05-17 | 2021-08-17 | 中国第一汽车股份有限公司 | Battery box body leakage detection device and detection method |
| CN113363549A (en) * | 2021-05-18 | 2021-09-07 | 镇江成泰自动化技术有限公司 | Sealed bin for filling nitrogen into aluminum battery |
| CN113804364A (en) * | 2021-09-10 | 2021-12-17 | 浙江工业大学之江学院 | Battery air tightness detection device and use method |
| CN113804364B (en) * | 2021-09-10 | 2023-08-15 | 浙江工业大学之江学院 | Battery air tightness detection device and use method |
| CN113964398A (en) * | 2021-10-13 | 2022-01-21 | 合肥召洋电子科技有限公司 | Battery pack shell dismounting and replacing structure and dismounting and replacing tool thereof |
| CN113964398B (en) * | 2021-10-13 | 2023-10-13 | 合肥召洋电子科技有限公司 | Battery pack shell disassembling and replacing tool |
| CN114791345A (en) * | 2022-04-29 | 2022-07-26 | 佛山市天劲新能源科技有限公司 | Battery box body sealing performance detection system |
| CN115096516A (en) * | 2022-07-04 | 2022-09-23 | 深圳市誉辰智能装备股份有限公司 | Double-vacuum four-cavity air tightness detection method and detection machine for square-shell battery |
| CN115096516B (en) * | 2022-07-04 | 2023-04-11 | 深圳市誉辰智能装备股份有限公司 | Double-vacuum four-cavity air tightness detection method and detection machine for square-shell battery |
| CN115326299A (en) * | 2022-10-17 | 2022-11-11 | 徐州卓谷新能源科技有限公司 | Lithium battery shell air tightness detection device |
| CN115342987A (en) * | 2022-10-18 | 2022-11-15 | 烟台市永盛密封科技有限公司 | Sealing effect check out test set of sealing washer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109406065B (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109406065B (en) | Air tightness detection device for square-shell lithium battery shell | |
| CN202614481U (en) | Positive voltage leakage detection apparatus of lithium ion battery | |
| CN210426902U (en) | Helium detecting device | |
| CN207456717U (en) | A kind of battery pack air tightness detection equipment | |
| CN208795436U (en) | Helium mass spectrum leak detection equipment for new energy vehicle controller component | |
| CN207081584U (en) | A kind of environmental project detection means | |
| CN106531956A (en) | Lithium ion power battery vacuum sealing device and sealing process thereof | |
| CN217032887U (en) | Lithium battery cover plate sealing welding air tightness detection device | |
| CN212807521U (en) | New energy battery airtightness detection device based on automobile technology development | |
| CN213209395U (en) | Device for detecting sealing performance of sealed battery | |
| CN210802798U (en) | Intercooler core group air tightness test device | |
| CN206292012U (en) | A kind of lithium-ion-power cell device for detecting sealability | |
| WO2022188479A1 (en) | Sealing box and standing device | |
| CN206271805U (en) | A kind of lithium-ion-power cell vacuum sealer | |
| CN209063043U (en) | Pressure cover attaching construction | |
| CN104332659A (en) | Vacuum packaging device of flexible package lithium battery | |
| CN207133024U (en) | The detection means of pressure vessel leakage | |
| CN206907856U (en) | A kind of battery positive/negative-pressure box body device | |
| CN217466131U (en) | Intelligent device for checking air tightness of single battery cell | |
| CN215811448U (en) | Oil pump gas tightness detection device | |
| CN205642320U (en) | A levelness measurement frock for horizontal frame of metal door window | |
| CN112857691A (en) | Intercooler core group air tightness test device | |
| CN117232750B (en) | Jet vacuumizing leak detection device | |
| CN215677459U (en) | Soft packet of lithium cell leakage detection equipment | |
| CN215342742U (en) | Power battery protection top cap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210903 Address after: 400000 14-5, No.2, beichengsan Road, Jiangbei District, Chongqing Applicant after: Chongqing xinzhichuang Technology Co.,Ltd. Address before: Room 101, 201, 301, building 4, block B, phase I, Tianyi Science and Technology City independent business park, 128 Chuangye Avenue, Tianyuan District, Zhuzhou City, Hunan Province, 412007 Applicant before: HUNAN ATS SMART EQUIPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220613 Address after: 518000 301, No. 6, shantangwei second lane, Pingdi Street Central Community, Longgang District, Shenzhen, Guangdong Province Patentee after: Shenzhen Guanghe precision equipment Co.,Ltd. Address before: 400000 14-5, No.2, beichengsan Road, Jiangbei District, Chongqing Patentee before: Chongqing xinzhichuang Technology Co.,Ltd. |