CN109459196A - Battery pack air-tightness automatic checkout system - Google Patents
Battery pack air-tightness automatic checkout system Download PDFInfo
- Publication number
- CN109459196A CN109459196A CN201811518514.0A CN201811518514A CN109459196A CN 109459196 A CN109459196 A CN 109459196A CN 201811518514 A CN201811518514 A CN 201811518514A CN 109459196 A CN109459196 A CN 109459196A
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- Prior art keywords
- battery pack
- air
- detection
- connector
- explosion
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- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Battery pack air-tightness automatic checkout system, comprising: opening device station, detection connector station, air-tightness detection device, transmission device；At least two robot devices and control device.Control device issues open command: opening manipulator grabs opener from opening device station, and it is moved to above the battery pack stopped on transmission device, opening manipulator is positioned and is acted so that sucker covers the explosion-proof valve of battery pack to vacuumize, the spool for opening explosion-proof valve is above mentioned after reaching the vacuum degree of setting, and keep spool in the open state, control device issues detection instruction: the battery pack that transmission device transmission spool is opened to predetermined position, opening manipulator grabs detection connector from detection connector station, and it is moved to above the battery pack stopped on transmission device, opening manipulator positions and acts explosion-proof valve of the alignment to battery pack to be detected so that detection connector, it moves down and rotates so that the card slot that connect cover entangles explosion-proof valve carries out air-leakage test.
Description
Technical field
The present invention relates to a kind of airtight test systems, and in particular to it is a kind of dedicated for detection battery pack air-tightness from
Dynamic detection system.
Background technique
New energy resource power battery packet is new-energy automobile " heart ", core of the power battery as new-energy automobile
Part, safety and the operation is stable, reliability directly ring the service performance and safety for arriving new energy electric motor vehicle.In order to pre- anti-electric
Interior battery is wrapped in pond to be influenced by water, dust etc., and battery pack cabinet requires to be sealed, and waterproof and dust-proof degree of protection are wanted
Seek the GB4208-2008 that is up to state standards " shell protection grade " (IP code) IP67 or more.
Detection for seal case degree of protection is protected in GB4208-2008 standard clear stipulaties IP67 or more
The test method and requirement of grade: dust-proof test is tested using talcum powder in dustproof test box, it is desirable that in off-test cabinet not
There can be dust deposit；Waterproof test requirement 1 meter of depth of water of immersion, the testing time at least 30 minutes.It is detected by the above standard method, behaviour
Make complexity, the used time is more, and detection rear box is stained with water and dust, needs to clean, is dry, and detection post-processes trouble, is adapted only to
The requirement quickly detected in battery pack batch production processing procedure is not achieved in sampling inspection, is that the industry is interior in batch production processing procedure
Using inflate or vacuumize and pressure maintaining for a period of time, then seeing whether gas leakage, whether good seal is verified to verify cabinet
Cabinet protection effect.
In order to inflate or vacuumize into battery pack cabinet, following methods are generally used at present:
(1) threaded hole is bored on cabinet, is connect gas-charging connection and is detected, although the method inflation detection speed is fast,
But on cabinet need to open a hole more, cabinet difficulty of processing is increased, and install one again after qualification after inflation detection
Bolt carries out secondary plugging sealing, operates cumbersome.
(2)) explosion-proof valve in battery pack is covered using a fixture.The structure of typical explosion-proof valve is as shown in Fig. 2, have
The clamping ring 114 connected for the interface with battery pack, the spool 111 being arranged in clamping ring 114, set on clamping ring 114
It is equipped with card slot 112, spool 111 is fastened on clamping ring 114 by elastomeric elements such as springs, after spool 111 lifts,
Gap 113 is formed between the cover and clamping ring of spool.Waterproof, ventilated membrane are additionally provided in spool.Fixture covers electricity
The explosion-proof valve that pond is wrapped, be by explosion-proof valve inside ventilated membrane cabinet in inflate or vacuumize and detected, but waterproof
Ventilated membrane Air permenbility is typically small, and aeration speed is very slow, and detection efficiency is low, misses for the airtight detector test result of pressure differential method
It is poor big, or even because Air permenbility too it is small can not when row detection judgement, and if making waterproof and breathable with existing if high-pressure aerated
Film is damaged, leads to the risk of explosion-proof defective valve.
Obviously, above operation have the shortcomings that risk below or:
(1) aeration aperture is opened up on cabinet, is needed one bolt of installation after there is inflation detection examination, is carried out secondary seal,
It is complicated for operation and bad there are secondary seal and cannot or be difficult to reach the risk of protection level requirements.
(2) it inflates or is evacuated in cabinet by the ventilated membrane of explosion-proof valve, inflation or the speed of evacuation are very slow, there is detection
The problem of low efficiency, and ventilated membrane Air permenbility is less, and larger with the airtight detector test error of pressure difference, there are larger erroneous judgements
Risk, or even cannot accurately detect and determine battery pack leakproofness.
(3) it inflates or vacuumizes from ventilated membrane, if misoperation, existing keeps waterproof ventilated membrane damaged, leads to explosion-proof valve
The risk of water-proof function failure.
In addition, for the production line largely checked, it is simple slower by artificial efficiency hand-manipulated, be not suitable for
Future electric car large-scale commercial applications large batch of battery pack post sales production requirement.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of battery pack air-tightness detects automatically
System, the spool of opening explosion-proof valve that can be quick, lossless, so that the gap after battery pack is lifted by spool is examined with air-tightness
Device connection is surveyed, and can be convenient, fast and be removably connected on the explosion-proof valve of battery pack and carry out air-leakage test.
The present invention provides a kind of battery pack air-tightness automatic checkout systems, for inciting somebody to action in the case where not damaging battery pack
The explosion-proof valve and air-tightness detection device of battery pack connect the air-tightness of detection battery pack characterized by comprising
Opening device station is provided at least a set of opening device；
Detection connector station, is provided at least one detection connector；
Air-tightness detection device is connected to detection with connector by tracheae；
Transmission device, for transmitting battery pack to be checked；
At least two robot devices, i.e. opening manipulator and inspecting manipuator；And
Control device,
Wherein, opening device includes opener, the vacuum subassembly with gas switch and vacuum source, will be opened by tracheae
Tool, vacuum source connection are opened,
Opener includes:
Pull rod, for the hollow structure with cavity, tail end has connector, and head end has installing port；
Sucker, have coupling part and in horn-like suction cup portion, and coupling part has and connector is detachably installed
Bayonet, suction cup portion have the channel being connected to suction cup portion for covering explosion-proof valve, coupling part,
Detection includes: with connector
Connect cover is in tubbiness, for covering in explosion-proof valve；
Seal closure entangles connect cover, contacts for the housing seal with battery pack；
Connector is arranged on seal closure, is used to be connected to air-tightness detection device as interface,
It is provided with connectivity structure in connect cover and seal closure, which makes connector pass through explosion-proof valve and battery
Packet is connected,
Control device issues open command, the following movement of instruction control:
Opening manipulator grabs opener from opening device station, and is moved to the battery pack stopped on transmission device
Top,
Gas switch, vacuum source are opened so that opener vacuumizes,
Opening manipulator is positioned and is acted so that sucker covers the explosion-proof valve of battery pack to vacuumize, and reaches the vacuum of setting
The spool for opening explosion-proof valve is above mentioned after degree, and keeps spool in the open state,
Control device issues detection instruction, the following movement of instruction control:
Transmission device transmits battery pack that spool is opened to predetermined position,
Opening manipulator grabs detection connector from detection connector station, and is moved to the battery stopped on transmission device
The side of wrapping,
Opening manipulator positions and acts explosion-proof valve of the alignment to battery pack to be detected so that detection connector, moves down
And rotate so that connect cover entangles the card slot of explosion-proof valve, which passes through the detection connector and air-tightness inspection
Device connection is surveyed,
Air-tightness detection device work carries out air-leakage test.
Battery pack air-tightness automatic checkout system provided by the invention, can also have the feature that, air-leakage test
Operation include:
Battery pack to be detected is given to inflate using 3.5kpar air pressure, inflationtime 450s, air pressure is up to stopping after 3.0~3.5kpar
Only；
Pressure stabilizing detects whether air pressure in battery pack to be detected is within the scope of 2.5~3.5kpar after duration 60s；
Whether the leakage flow of battery pack to be detected in 60s is in -0.1cc/min~0.5cc/min after detection pressure stabilizing
In range.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, it is additionally provided with the automechanism for being inserted into spool baffle on transmission device, the automechanism is by the spool
Stop valve core reset in the spool gap of baffle insertion explosion-proof valve so that the quick pressure releasing channel of explosion-proof valve is kept it turning on,
Corresponding, opening manipulator, which resets, prepares opening operation next time.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, after the completion of detection, control device issues reset instruction, the following movement of instruction control:
Air-tightness detection device stops working,
Opening manipulator rotates backward so that connect cover is loosened from the card slot of explosion-proof valve, moves up so that detection connector is de-
From battery pack to be detected,
Spool baffle is removed in automechanism movement.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, the vacuum degree set is -50~-98kPa.
Battery pack air-tightness automatic checkout system provided by the invention, can also have the feature that, further includes:
First sensor is arranged on transmission device, when battery pack to be detected is sent to corresponding opening manipulator
When position, the signal control device is issued, control issues open command,
Second sensor is arranged on transmission device, when battery pack to be detected is sent to corresponding inspecting manipuator
When position, the signal control device is issued, control issues detection instruction.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, the interface of the tail end of pull rod is in inverted T-shaped,
Corresponding, the coupling part of sucker has the groove of T shape, which is bayonet,
The connector of pull rod is snapped onto the groove of the coupling part of sucker and is connected together,
Coupling part corresponds in the wall of the part of the groove of T shape and is provided with spiral elastic ring, snaps onto T shape for clamping
Connector in groove.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, seal closure is sealed by the shell of sealing ring and battery pack,
Wherein, the open end of seal closure is provided with annular groove,
Sealing ring is fixed in the annular groove.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, it is respectively arranged with interconnected intercommunicating pore on connect cover and seal closure, which is connectivity structure,
Connector is arranged on the intercommunicating pore of seal closure, and intercommunicating pore is separately positioned on the upper lid of connect cover and seal closure, and coaxially sets
It sets, connector passes through two intercommunicating pores of coaxial arrangement and the inner space of connect cover communicates.
Battery pack air-tightness automatic checkout system provided by the invention, can also have a feature in that
Wherein, connector is hollow screw rod,
Air-tightness detection device is connected to the hollow channel of screw rod by tracheae,
Corresponding, two intercommunicating pores being arranged in connect cover and seal closure are threaded hole, and the head of screw rod has interior
Threaded hole, the internal thread hole are connected to the hollow channel of screw rod.
The effect and effect of invention
The battery pack air-tightness automatic checkout system provided according to the present invention, because having corresponding storage to have opening device
Opening device station, storage has the detection station of detection connector, and the detection connector and air-tightness detection device connect
It connects, battery pack to be detected is transmitted to predetermined position by the transmission device having, and under the control instruction driving of control device, is opened
Open manipulator and successively grab opener in opening device, open the spool of the explosion-proof valve of battery pack, be then transported on device by
The battery pack for opening spool is transmitted to next predetermined position by control, and being then turned on inspecting manipuator crawl detection has connector connection
On the explosion-proof valve for opening spool battery pack is connected to air-tightness detection device, carries out air-leakage test.
The above whole process issues instruction control by control device completely, and stylized operation is carried out by manipulator, can
With continuously, standardize, quickly finish the full inspection work of battery pack, meet following production demand.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of battery pack air-tightness automatic checkout system in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of opening device in the embodiment of the present invention；
Fig. 3 is the disassembly schematic diagram of detection connector in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of connector in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of seal closure in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of spool card in embodiment；And
Fig. 7 is the typical structure schematic diagram of battery pack explosion-proof valve.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Applying example combination attached drawing is that battery pack air-tightness automatic checkout system system is specifically addressed to private tutor of the present invention management.
Fig. 1 is the composition schematic diagram of battery pack air-tightness automatic checkout system in the embodiment of the present invention.
As shown in Figure 1, battery pack air-tightness automatic checkout system, in the case where not damaging battery pack by battery pack
Explosion-proof valve and air-tightness detection device connect detection battery pack air-tightness, which is characterized in that including opening device work
Position 1, detection connector station 2, air-tightness detection device 3, transmission device 4, robot device and control device 7.
Opening device station 1 is provided at least a set of opening device.
Detection connector station 2, is provided at least one detection connector.
Air-tightness detection device 3 is connected to detection with connector by tracheae.
Transmission device 4, for transmitting battery pack to be checked.
At least two robot devices, i.e. opening manipulator 5 and inspecting manipuator 6.
Control device 7.
Fig. 2 is the structural schematic diagram of opening device in the embodiment of the present invention.
As shown in Fig. 2, opening device 100, including opener 10, vacuum subassembly 20, buffer 30, between pass through tracheae
Connection.
Opener 10, including pull rod 11, sucker 12.
Pull rod 11, for the hollow structure with cavity, tail end has connector, and head end has installing port.
The cavity of pull rod is cylindrical, and the installing port of pull rod is inner thread mouth, and outer diameter is greater than the outer diameter of the cavity of pull rod.
As shown in Figure 1, tracheae G spiral compression is installed in diagram in the inner thread mouth on pull rod top by the nipple J by screw thread.
The interface of the tail end of pull rod is in inverted T-shaped, for snapping onto the coupling part of sucker.
Sucker 12, has coupling part and in horn-like suction cup portion, and coupling part and suction cup portion, which have, to be connected to
Channel, the bayonet that coupling part has and connector is detachably installed, suction cup portion is for covering explosion-proof valve.
Corresponding, the coupling part of sucker has the groove of T shape, which is bayonet, and the connector of pull rod snaps onto suction
It is connected together in the groove of the coupling part of disk.
In the present embodiment, sucker 12 as shown in Fig. 1, suction cup portion is rounded bowl-shape, is flexible material, coupling part
The small head end (top illustrated) of suction cup portion is set.Preferably, coupling part and suction cup portion are integrally formed, whole
Cross section is in " people " font.
Vacuum subassembly 20 has gas switch 21 and vacuum source.Gas switch is manually-operated gate, it is preferred that uses electromagnetism
Valve.Vacuum source is vacuum pump or aspiration pump.
Buffer 30, as shown, be a container, for being buffered, setting opener and gas switch it
Between, especially it is used to the liquid extracted from opener that shuts off, prevents the liquid damage brought into these battery packs in rear company
The vacuum pump connect.
Opener, gas switch 21 and vacuum source pass sequentially through tracheae connection, as shown in Fig. 2, tracheae and unlatching work
Tool, gas switch and vacuum source are connected by nipple J.
In the present embodiment, vacuum subassembly 20 and buffer are fixedly disposed on station, pass through tracheae and unlatching
Tool 10 is connected to.
Fig. 3 is the disassembly schematic diagram of detection connector in the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of connector in the embodiment of the present invention.
Detection use connector 200, in the case where not damaging battery pack by the explosion-proof valve of battery pack and air-leakage test
Device connects the air-tightness of detection battery pack, comprising:
Connect cover 210 is in tubbiness, for covering in explosion-proof valve.Specifically, as shown in figure 3, the open end of cover be equipped with to
Interior claw outstanding 211, the claw are inserted in the card slot of explosion-proof valve and are fixed for rotating.
Seal closure 220, entangles connect cover, contacts for the housing seal with battery pack；
Connector 230 is arranged on seal closure, is used to be connected with air-tightness detection device as interface,
Wherein, it is provided with connectivity structure in connect cover and seal closure, which makes connector pass through explosion-proof valve
It is connected with battery pack: i.e. by the way that connector to be mounted on the connectivity structure being arranged in connect cover and seal closure, so that connection
Cover and seal closure link together, and the space and external space of connect cover are connected by connector.
Air-tightness detection device 3 is to set corresponding to fill exhaust process and correspondence according to the standard requirements of test
The numerical value for needing to measure, the program of air-leakage test are as follows:
Battery pack to be detected is given to inflate using 3.5kpar air pressure, inflationtime 450s, air pressure is up to stopping after 3.0~3.5kpar
Only；
Pressure stabilizing detects whether air pressure in battery pack to be detected is within the scope of 2.5~3.5kpar after duration 60s；
Whether the leakage flow of battery pack to be detected in 60s is in -0.1cc/min~0.5cc/min after detection pressure stabilizing
In range.
And according to requiring to be made to determine whether qualification.
Air-tightness detection device 3, transmission device 4, robot device all receive the control of control device:
Control device issues open command, the following movement of instruction control:
Opening manipulator grabs opener from opening device station, and is moved to the battery pack stopped on transmission device
Top,
Gas switch, vacuum source are opened so that opener vacuumizes,
Opening manipulator is positioned and is acted so that sucker covers the explosion-proof valve of battery pack to vacuumize, and reaches the vacuum of setting
The spool for opening explosion-proof valve is above mentioned after degree, and keeps spool in the open state,
Control device issues detection instruction, the following movement of instruction control:
Transmission device transmits battery pack that spool is opened to predetermined position,
Opening manipulator grabs detection connector from detection connector station, and is moved to the battery stopped on transmission device
The side of wrapping,
Opening manipulator positions and acts explosion-proof valve of the alignment to battery pack to be detected so that detection connector, moves down
And rotate so that connect cover entangles the card slot of explosion-proof valve, which passes through the detection connector and air-tightness inspection
Device connection is surveyed,
Air-tightness detection device work carries out air-leakage test, and is tested according to the program of above-mentioned air-leakage test
And judgement.
Embodiment 2
On the basis of embodiment 1, the automechanism for being inserted into spool baffle is additionally provided on transmission device, this is automatic
Mechanism by the spool baffle insertion explosion-proof valve spool gap in come stop valve core reset so that explosion-proof valve quick pressure releasing
Channel is kept it turning on, corresponding, and opening manipulator, which resets, prepares opening operation next time.Automechanism can be hydraulic or electromagnetism
Power.
Embodiment 3
On the basis of above embodiments 2, after the completion of detection, control device issue reset instruction, the instruction control with
Lower movement:
Air-tightness detection device stops working,
Opening manipulator rotates backward so that connect cover is loosened from the card slot of explosion-proof valve, moves up so that detection connector is de-
From battery pack to be detected,
Spool baffle is removed in automechanism movement.
Embodiment 4
On the basis of above embodiments 1-3, for the accuracy of positioning, automatic system further include:
First sensor 8 is arranged on transmission device, when battery pack to be detected is sent to corresponding opening manipulator 5
Position when, send a signal to the control device, control device issues open command；
Second sensor 9 is arranged on transmission device, when battery pack to be detected is sent to corresponding inspecting manipuator 6
Position when, send a signal to the control device, control device issues detection instruction.
Embodiment 5
On the basis of above embodiments, rounded bowl-shape suction cup portion is verified according to test of many times, the choosing of sucker size
WithAnd it combinesTracheae control flow suction be able to maintain just greater than 20N, in this case, vacuum pump it is true
Reciprocal of duty cycle -50~-98kPa is proper, and unlatching effect is good, this dynamics can just open the cover board of explosion-proof valve, not damage lid
Plate, and opening speed is than very fast, it is high-efficient.
Embodiment 6
Further, on the basis of embodiment, a circle spiral shell is set in the wall that the coupling part of sucker corresponds to T connected in star
Spring ring is revolved, the connector in the groove of T shape is snapped onto for clamping.
Since sucker is multiformed vulnerable part, belongs to consumptive material, need repeatedly to replace, meeting in replacement process is so that T
The inner wall mode of connected in star and cannot closely connect even more so that seal failure, passes through the above-mentioned easy mill of the sucker in rubber material
It damages and buries a spiral elastic ring in the wall at the position to reinforce the dynamics of its clamping, extend the service life of sucker, reinforce close
The effect of envelope.
It is briefly described below using the lossless opener of the battery pack of embodiment and opens the operation of battery pack explosion-proof valve
Journey:
When detecting power battery pack air-tightness, vacuum source is opened, and is first turned on gas switch to vacuumize, by opener
Sucker be placed on explosion-proof 111 lateral surface of valve core and contact and suck, opening manipulator is held pull rod and is mentioned upwards, by spool 111
Cover board open so that occur gap 113 between cover board and clamping ring, then by spool baffle or other similar tablet
Being inserted into gap 113 makes explosion-proof valve be in communication with the outside by quick pressure releasing channel, can connect air-leakage test at this time
Device carries out air-tightness.
Embodiment 7
On the basis of embodiment 1, it is respectively arranged with interconnected intercommunicating pore on connect cover and seal closure, the intercommunicating pore
As connectivity structure, connector are arranged on the intercommunicating pore of seal closure.
Corresponding, connector is hollow bar, passes through the intercommunicating pore K being inserted through the bar in connect cover and seal closure
To be fixed and be connected to.In such cases, air-tightness detection device is in communication with the outside by the hollow bar.
Embodiment 8
On the basis of embodiment 2, intercommunicating pore is separately positioned on the upper lid of connect cover and seal closure, and is coaxially disposed,
Preferably, as shown in Fig. 2, the intercommunicating pore is arranged at center (center of circle) position of cylindrical connect cover, seal closure.
Embodiment 9
On the basis of above embodiments 1,2 or 3, two intercommunicating pores being arranged in connect cover and seal closure are screw thread
Hole, corresponding, connector is hollow screw rod, by being screwed into the screw spiral and passing through connect cover and being connected on seal closure
Threaded hole is fixed and is connected to.
As shown in Figure 2,3, it is preferred that screw rod has internal thread hole 2301 with 230 heads, the internal thread hole and screw rod
Hollow channel connection is connected tracheae with the internal thread hole of screw rod by having threaded tracheae quick coupling J.
Fig. 5 is the structural schematic diagram of seal closure in the embodiment of the present invention.
Embodiment 10
Above embodiments 1-9 is to carry out compression sealing by being pressed on the shell of battery pack between seal closure 220
, it is as one preferred, as shown in Fig. 2,5, by setting sealing ring H between seal closure 220 and the shell of battery pack come
Carry out compression sealing.
Further, in order to facilitate the installation of and sealing, as shown in figure 4, the open end in seal closure is provided with annular groove
2201, sealing ring is fixed in the annular groove.
Fig. 6 is the structural schematic diagram of spool card in embodiment.
Embodiment 11
As a kind of apolegamy, between the cover board and clamping ring that card insertion spool can be used, so that battery pack passes through lid
The quick pressure releasing channel that gap between plate and clamping ring is formed is taken out, is vented, so that inflation or the speed of evacuation are accelerated,
Detection efficiency is promoted, so the present embodiment also provides a kind of spool card (spool baffle) such as Fig. 6, for being inserted into explosion-proof valve
Stop valve core reset in spool gap so that the quick pressure releasing channel of explosion-proof valve is kept it turning on, at 7 fonts, head exists
Spool is opened and is caught in after exposing gap.Specifically spool baffle 10 is with a thickness of 0.5-5mm, preferably spool baffle 10 with a thickness of
1-3mm。
The cover board of spool 111 is opened using opener: opening gas pass for sucker and covers explosion-proof valve spool, upper lifting
Bar, which opens spool, exposes pressure release gap, and keeps spool in the open state, so that occurring gap between cover board and clamping ring
113, then spool baffle or other similar tablet are inserted into gap 113 make explosion-proof valve by quick pressure releasing channel with
External world's connection.
Then, connect cover rotation is caught in fixed in the card slot of explosion-proof valve: the open end of connect cover is equipped with inwardly projecting
Claw, the claw are inserted in the card slot of explosion-proof valve and are fixed for rotating, and the claw in connect cover is caught in explosion-proof valve card slot
Middle fixation.
Connect cover is covered using seal closure and is connected to threaded hole to positive, is screwed into screw rod to compress seal closure and battery pack case
By rubber seal ring realize compress sealing.
The internal thread hole 2301 of tracheae and screw rod is connected using having threaded tracheae quick coupling J, by airtight inspection
After surveying device unlatching, between pressure release of the gas by two intercommunicating pores and explosion-proof valve of tracheae, connector, connect cover and seal closure
Gap, quick pressure releasing channel enter in battery pack, i.e., air-tightness detection device is connected to battery pack, so i.e. so that battery pack passes through
It taken out, be vented in the quick pressure releasing channel that gap between cover board and clamping ring is formed.
After air-tightness detection device detection, rotatory sealing cover simultaneously dismantles detection connector, and spool is made to automatically reset
To keep explosion-proof valve to be in sealing state.
The action and effect of embodiment
The battery pack air-tightness automatic checkout system provided according to the present invention, because having corresponding storage to have opening device
Opening device station, storage has the detection station of detection connector, and the detection connector and air-tightness detection device connect
It connects, battery pack to be detected is transmitted to predetermined position by the transmission device having, and under the control instruction driving of control device, is opened
Open manipulator and successively grab opener in opening device, open the spool of the explosion-proof valve of battery pack, be then transported on device by
The battery pack for opening spool is transmitted to next predetermined position by control, and being then turned on inspecting manipuator crawl detection has connector connection
On the explosion-proof valve for opening spool battery pack is connected to air-tightness detection device, carries out air-leakage test.
The above whole process issues instruction control by control device completely, and stylized operation is carried out by manipulator, can
With continuously, standardize, quickly finish the full inspection work of battery pack, meet following production demand.
Because connect cover can be entangled and is fixed on the clamping ring of explosion-proof valve, and seal closure can entangle connect cover and and
It is pressed on the shell of battery pack and seals, and connect by the connector of communication seals cover, connect cover as what is be in communication with the outside
Mouthful, so, in connection and disassembly, it is thus only necessary to entangle on the clamping ring of explosion-proof valve connect cover, seal closure then is installed just
It may be implemented for the connector to be fixed on explosion-proof valve, and be connected to battery pack.The connector is in use, disassembly and installation, use
It is quite convenient to.
Again because can be used between the cover board and clamping ring of card insertion spool, so that battery pack passes through cover board and connection
The quick pressure releasing channel that gap between circle is formed is taken out, is vented, so that inflation or the speed of evacuation are accelerated, promotes detection
Efficiency.
Further, because the cover board of explosion-proof valve is sucked using sucker, then by upper lifting rod, spool is opened, thus
Subsequent air-tightness detection device is facilitated directly to be connected with battery pack, in use according to the area of sucker and spool
Back stretch, can correspond to and calculate the vacuum degree that sucker is evacuated, thus guarantee can suck lift spool and
Dynamics is excessive and damages spool, even waterproof air ventilation membrane.Specifically, the lossless opener is used to open the explosion-proof of battery pack
Valve has the advantage that
1, opener structure is simple, and installation and disassembly are quick, operates with simple；
2, it is not required to separately set inflation detection hole on cabinet, the spool of explosion-proof valve is opened using opener of the invention,
The air-tightness detection device for being can be inflated by the gap between spool and clamping ring i.e. quick pressure releasing channel or pumping, speed
Fastly, detection efficiency is high；
3, by above 2nd point it is found that gas is without the waterproof ventilated membrane in explosion-proof valve, effective pre- anti-error behaviour when detecting
Make, can reduce or even avoid to answer pressure adjusting improper, pressure is excessive to cause waterproof ventilated membrane damaged, and water-proof function failure is asked
Topic.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of battery pack air-tightness automatic checkout system, in the case where not damaging battery pack by the explosion-proof valve of battery pack
The air-tightness of detection battery pack is connected with air-tightness detection device characterized by comprising
Opening device station is provided at least a set of opening device；
Detection connector station, is provided at least one detection connector；
Air-tightness detection device is connected to the detection with connector by tracheae；
Transmission device, for transmitting battery pack to be checked；
At least two robot devices, i.e. opening manipulator and inspecting manipuator；And
Control device,
Wherein, the opening device includes opener, the vacuum subassembly with gas switch and vacuum source, will be opened by tracheae
Tool, vacuum source connection are opened,
The opener includes:
Pull rod, for the hollow structure with cavity, tail end has connector, and head end has installing port；
Sucker, have coupling part and in horn-like suction cup portion, and coupling part has and the connector is detachably installed
Bayonet, suction cup portion have the channel being connected to the suction cup portion for covering the explosion-proof valve, the coupling part,
The detection includes: with connector
Connect cover is in tubbiness, for covering in explosion-proof valve；
Seal closure entangles the connect cover, contacts for the housing seal with battery pack；
Connector is arranged on the seal closure, is used to be connected to air-tightness detection device as interface,
It is provided with connectivity structure in the connect cover and the seal closure, it is described which pass through the connector
Explosion-proof valve is connected with battery pack,
The control device issues open command, the following movement of instruction control:
The opening manipulator grabs the opener from the opening device station, and is moved on the transmission device
Above the battery pack of stopping,
Gas switch, vacuum source are opened so that opener vacuumizes,
The opening manipulator is positioned and is acted so that the sucker covers the explosion-proof valve of battery pack to vacuumize, and reaches setting
The spool for opening explosion-proof valve is above mentioned after vacuum degree, and keeps the spool in the open state,
The control device issues detection instruction, the following movement of instruction control:
The battery pack that transmission device transmission spool is opened to predetermined position,
The opening manipulator grabs the detection connector from detection connector station, and is moved to the transmission
Above the battery pack stopped on device,
The opening manipulator positions and acts explosion-proof valve of the alignment to battery pack to be detected so that the detection connector,
It moves down and rotates so that connect cover entangles the card slot of explosion-proof valve, which passes through the detection connector and described
Air-tightness detection device connection,
The air-tightness detection device work carries out air-leakage test.
2. battery pack air-tightness automatic checkout system according to claim 1, which is characterized in that the operation of air-leakage test
Include:
Battery pack to be detected is given to inflate using 3.5kpar air pressure, inflationtime 450s, air pressure is up to stopping after 3.0~3.5kpar；
Pressure stabilizing detects whether air pressure in battery pack to be detected is within the scope of 2.5~3.5kpar after duration 60s；
Whether the leakage flow of battery pack to be detected in 60s is in -0.1cc/min~0.5cc/min range after detection pressure stabilizing
It is interior.
3. battery pack air-tightness automatic checkout system according to claim 1, it is characterised in that:
Wherein, it is additionally provided with the automechanism for being inserted into spool baffle on the transmission device, the automechanism is by the spool
Stop valve core reset in the spool gap of baffle insertion explosion-proof valve so that the quick pressure releasing channel of explosion-proof valve is kept it turning on,
Corresponding, the opening manipulator, which resets, prepares opening operation next time.
4. battery pack air-tightness automatic checkout system according to claim 3, it is characterised in that:
Wherein, after the completion of detection, the control device issues reset instruction, the following movement of instruction control:
The air-tightness detection device stops working,
The opening manipulator rotates backward so that connect cover is loosened from the card slot of explosion-proof valve, moves up so that the detection is with connecing
Head is detached from battery pack to be detected,
The spool baffle is removed in the automechanism movement.
5. battery pack air-tightness automatic checkout system according to claim 1, it is characterised in that:
Wherein, the vacuum degree set is -50~-98kPa.
6. battery pack air-tightness automatic checkout system according to claim 5, which is characterized in that further include:
First sensor is arranged on the transmission device, when battery pack to be detected is sent to the corresponding unlatching machinery
When the position of hand, the control device is sent a signal to, the control device issues the open command,
Second sensor is arranged on the transmission device, when battery pack to be detected is sent to the corresponding detection machinery
When the position of hand, the control device is sent a signal to, the control device issues the detection instruction.
7. battery pack air-tightness automatic checkout system according to claim 1, it is characterised in that:
Wherein, the interface of the tail end of the pull rod is in inverted T-shaped,
Corresponding, the coupling part of the sucker has the groove of T shape, which is bayonet,
The connector of the pull rod is snapped onto the groove of the coupling part of the sucker and is connected together,
The coupling part corresponds in the wall of the part of the groove of the T shape and is provided with spiral elastic ring, snaps onto for clamping
The connector in the groove of the T shape.
8. battery pack air-tightness automatic checkout system according to claim 7, it is characterised in that:
Wherein, the seal closure is sealed by the shell of sealing ring and the battery pack,
Wherein, the open end of the seal closure is provided with annular groove,
The sealing ring is fixed in the annular groove.
9. battery pack air-tightness automatic checkout system according to claim 8, it is characterised in that:
Wherein, it is respectively arranged with interconnected intercommunicating pore on the connect cover and the seal closure, which is described
Connectivity structure, the connector are arranged on the intercommunicating pore of the seal closure, and the intercommunicating pore is separately positioned on the connect cover
It on the upper lid of the seal closure, and is coaxially disposed, the connector passes through two intercommunicating pores and described of coaxial arrangement
The inner space of connect cover communicates.
10. battery pack air-tightness automatic checkout system according to claim 7, it is characterised in that:
Wherein, the connector is hollow screw rod,
Air-tightness detection device is connected to the hollow channel of the screw rod by tracheae,
Corresponding, two intercommunicating pores being arranged in the connect cover and the seal closure are threaded hole, the head of the screw rod
Portion has internal thread hole, which is connected to the hollow channel of the screw rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811518514.0A CN109459196B (en) | 2018-12-12 | 2018-12-12 | Automatic detection system for air tightness of battery pack |
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| CN201811518514.0A CN109459196B (en) | 2018-12-12 | 2018-12-12 | Automatic detection system for air tightness of battery pack |
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| CN110082047A (en) * | 2019-04-15 | 2019-08-02 | 合肥国轩高科动力能源有限公司 | A kind of lithium battery pack sealing test upper cover plate compacting protective device |
| CN110278703A (en) * | 2019-07-19 | 2019-09-24 | 格力电器（武汉）有限公司 | A kind of remote controller battery cover detection device, system and method |
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| CN113607354A (en) * | 2021-08-26 | 2021-11-05 | 蜂巢能源科技有限公司 | Battery pack air tightness detection method and detection system |
| CN113820056A (en) * | 2021-09-29 | 2021-12-21 | 歌尔科技有限公司 | Pressure detection device |
| CN113834606A (en) * | 2021-11-26 | 2021-12-24 | 苏州英特模汽车科技有限公司 | Test system for plugging air tightness explosion-proof valve of lithium battery pack |
| CN116799422A (en) * | 2023-08-23 | 2023-09-22 | 江西五十铃汽车有限公司 | Driving safety guarantee device for new energy automobile |
| CN116799422B (en) * | 2023-08-23 | 2024-01-26 | 江西五十铃汽车有限公司 | Driving safety guarantee device for new energy automobile |
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