CN209470826U - The device for detecting sealability of fuel cell membrane electrode - Google Patents

Abstract

The utility model discloses a kind of device for detecting sealability of fuel cell membrane electrode, described device includes: die assembly, the die assembly includes: the first mould, the second mould, the first gasket and the second sealing pad holes, first mould is equipped with the first holding tank, the first and second air inlet runners, and second mould is equipped with the second holding tank of second gas diffusion layer and first and goes out flow channel；Press mounting system, the press mounting system are connected with the die assembly；Air supply system, the air supply system are connected with first and second air inlet runner, and one-to-one first and second control valve is equipped between first and second air inlet runner and the air supply system；Detection system, the detection system go out flow channel with described first and are connected, and described first goes out to be equipped with third control valve between flow channel and the detection system.When detecting membrane electrode without installing bipolar plates, the operating time is short, and can carry out the leakage and gas blowby detection of membrane electrode simultaneously.

Description

The device for detecting sealability of fuel cell membrane electrode

Technical field

The utility model belongs to fuel cell test technical field, in particular to a kind of fuel cell membrane electrode Device for detecting sealability.

Background technique

Fuel cell is a kind of power generator that the chemical energy of hydrogen is changed into electric energy, with pollution-free, operating temperature Low, low noise advantages have obtained extensive research and development and application in various fields.Fuel cell is as a kind of clean energy products A brand-new energy utilization patterns are opened up.

Membrane electrode assembly, english abbreviation MEA are the most crucial components of fuel cell, are that redox occurs for fuel cell Place.Fuel cell is exactly to pass through MEA to assemble with bipolar plates multiple-level stack, and the side MEA is hydrogen, and side is oxygen, Play the role of isolation gas, exchanges proton.If gas leakage or breakage occur for MEA, hydrogen and oxygen mix are directly resulted in, can be caused The risk of explosion, therefore before assembling the mea, it is necessary to every being sealed property of MEA is detected.

In the related technology, inner hexagon is substantially only carried out to the sealing performance detection of MEA, is examined without effective method The leakage of MEA is surveyed, and the detection of MEA is complicated for operation time-consuming, require installation bipolar plates, some is sealed inspection using press It surveys, wastes the plenty of time.In conclusion bipolar plates detection means in the related technology is only applicable to model machine production detection, it can not Meet the requirement that commercialization is produced in enormous quantities.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model embodiment, comprising: for clamp to The die assembly of the membrane electrode of detection, the die assembly include: the first mould, the second mould, the work for being installed on first mould Second gasket of first gasket in face and the working face for being installed on second mould, first gasket and described second Gasket is equipped with for avoid holes corresponding with the inlet and outlet of the membrane electrode, and first mould is equipped with for accommodating the film First holding tank of the first gas diffusion layer of electrode, first mould are additionally provided with the first and second air inlet runners, and described first Air inlet runner is connected to the avoid holes of first gasket, and second air inlet runner is connected to first holding tank, institute State the second mould be equipped with for accommodate the second gas diffusion layer of the membrane electrode the second holding tank and with second holding tank The first of connection goes out flow channel；Press mounting system, the press mounting system are connected with the die assembly, to drive the die assembly Molding or die sinking；Air supply system, the air supply system are connected with first and second air inlet runner, described first and second into One-to-one first and second control valve is equipped between flow channel and the air supply system；Detection system, the detection system Go out flow channel with described first to be connected, described first goes out to be equipped with third control valve between flow channel and the detection system.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model embodiment, pass through design and membrane electrode Applicable die assembly can precisely simulate the assembled state of membrane electrode, in this way when detecting membrane electrode without installing bipolar plates, Quick and precisely to detect membrane electrode leakproofness, the operating time is short, and can carry out the leakage and gas blowby detection of membrane electrode simultaneously, and one Secondary clamping realizes a variety of performing leak tests, and high production efficiency can really be used for fuel cell producing line.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, described first and Two air inlet runners include the first die adapter, and first air inlet runner further includes first of the working face set on first mould Mould first is open, and first mould first is open to be connected to six avoid holes of first gasket, second inlet air flow Road further includes first the second opening of mould set on first holding tank；Described first go out flow channel include the second die adapter and The second mould set on second holding tank is open.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, first mould One it is open include first segment, second segment and the third section being sequentially connected, three of the first segment and first gasket keep away Allow Kong Liantong, the third section is connected to the other three avoid holes of first gasket, the first segment and the third Section is respectively provided at the opposite two sides of first holding tank, the third section be located at first holding tank away from described the The side of one die adapter.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, first mould Working face is equipped with the first mounting groove, and first gasket is installed on first mounting groove, and the first gasket protrudes from institute State the working face of the first mould；The working face of second mould is equipped with the second mounting groove, and second gasket is installed on described the Two mounting grooves, and the second gasket protrudes from the working face of second mould.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, the die assembly It is removably installed in the output end of the press mounting system, and the shape of the working face of the die assembly and runner, described One gasket, first gasket shape matched with the membrane electrode.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, further includes: control System, the control system are electrically connected with the press mounting system, the air supply system and the detection system.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, described first to Six control valves are electrically-controlled valve, and are electrically connected with the control system.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, further includes: cabinet, The cabinet includes the first installation cavity, the second installation cavity, third installation cavity separated from top to bottom, the control system and institute It states detection system and is installed on first installation cavity, the press mounting system and the die assembly are installed on second installation Chamber, the air supply system are installed on the third installation cavity.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, further includes: clamping System, the clamping system includes multi-axis mechanical arm, and the multi-axis mechanical arm is for clamping and conveying the membrane electrode.

According to the device for detecting sealability of the fuel cell membrane electrode of the utility model one embodiment, described device has Gas blowby detects operating mode and outer leak detection operating mode；The gas blowby detection operating mode includes first stage and second-order Section, wherein first stage, the air supply system are opened, and first control valve, the third control valve are opened, and described second Control valve is closed；Second stage, the air supply system are opened, and second control valve, the third control valve are opened, described First control valve is closed；In the outer leak detection operating mode, the air supply system is opened, and second control valve is opened, First control valve, the third control valve are closed, and close gas source after the object time.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the schematic diagram of the device of the application one embodiment；

Fig. 2 is the structural schematic diagram of the device of the application one embodiment；

Fig. 3 is the structural schematic diagram of the press mounting system of the device of the application one embodiment；

Fig. 4 is the structural schematic diagram of the membrane electrode of the application；

Fig. 5 is the structural schematic diagram of the die assembly of the device of the application one embodiment；

Fig. 6 is the structural schematic diagram of the first mould of the device of the application one embodiment；

Fig. 7 is the structural schematic diagram of the second mould of the device of the application one embodiment；

Fig. 8 is the gas circuit structure schematic diagram of the device of the application one embodiment.

Appended drawing reference:

Device 1000,

Cabinet 100,

Press mounting system 200, the first pressure head 210, the second pressure head 220,

Die assembly 300,

First mould 310, the first air inlet runner 311, the second air inlet runner 312, the first holding tank 314, the first mould first are spacious Mouth 315, first the second opening of mould 316,

First gasket 321, the second gasket 322,

Second mould 330, first go out flow channel 331, the second holding tank 334, the second mould opening 335,

Clamping system 400, control system 500, detection system 600,

Membrane electrode 700, proton exchange membrane 710, first gas diffusion layer 720, second gas diffusion layer 730, dielectric moldings 740, air supply system 800, gas source 810, pressure reducing valve 820, control valve 830, pressure detecting table 840,

First control valve 901, the second control valve 902, third control valve 903.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

It is filled below with reference to Fig. 1-Fig. 8 description according to the sealing propertytest of the fuel cell membrane electrode of the utility model embodiment Set 1000.

As Figure 1-Figure 8, it is filled according to the sealing propertytest of the fuel cell membrane electrode of the utility model one embodiment Setting 1000 includes: die assembly 300, press mounting system 200, air supply system 800, detection system 600.

As shown in figure 4, membrane electrode 700 (MEA, Membrane Electrode Assemblies) to be detected includes matter Proton exchange 710, catalyst layer, first gas diffusion layer 720, second gas diffusion layer 730, dielectric moldings 740.Wherein, matter Proton exchange 710 is 700 core component of membrane electrode, provides ion channel for electrolyte, two-stage reaction gas is isolated, to catalyst Layer plays a supportive role；Catalyst layer is generally applied to 710 two sides of proton exchange membrane, and electrochemical reaction occurs for catalysis two-stage gas； 740 hot pressing of dielectric moldings plays supported proton exchange film 710 and the two sides pole plate that insulate in 710 two sides of proton exchange membrane；First gas Diffusion layer 720 and second gas diffusion layer 730 are arranged in the two sides of proton exchange membrane 710, for participate in reaction gas and The water of generation provides transmission channel, and supports catalyst.

Dielectric moldings 740 are additionally provided with coolant inlet, coolant outlet, hydrogen inlet, hydrogen outlet, air intlet, sky Gas outlet, the device 1000 of the utility model embodiment can detect gas blowby and the leakage of membrane electrode 700 simultaneously.It needs to illustrate It is that the distribution mode of each inlet and outlet of the dielectric moldings 740 of membrane electrode 700 to be detected is indefinite.

Wherein, as depicted in figs. 1 and 2, die assembly 300 is for clamping membrane electrode 700 to be detected, die assembly 300 It is the frock clamp for detecting 700 leakproofness of membrane electrode, die assembly 300 plays clamping and sealing membrane electrode 700, tests mould Tool must match with membrane electrode 700 to be detected, detect different membrane electrodes 700 and need to change the die assembly 300 to match.

As shown in figure 5, die assembly 300 includes: the first mould 310, the second mould 330, the first gasket 321 and the second sealing Pad 322, the first gasket 321 are installed on the working face of the first mould 310, and the second gasket 322 is installed on the work of the second mould 330 Face, it should be noted that the working face of the first mould 310 is the first mould 310 towards the surface of the second mould 330, the work of the second mould 330 Making face is the second mould 330 towards the surface of the first mould 310.

As shown in figure 5, the first gasket 321 and the second gasket 322 are equipped with for the inlet and outlet with membrane electrode 700 (coolant inlet, coolant outlet, hydrogen inlet, hydrogen outlet, air intlet, air outlet slit) corresponding avoid holes.

First gasket 321 and the second gasket 322 to be isolated between above-mentioned inlet and outlet, and import and export big with the external world It is isolated between gas, gasket configuration design size and form and 740 form of dielectric moldings of membrane electrode 700 match.

As shown in Figure 5 and Figure 6, the first mould 310 is equipped with the first air inlet runner 311, the second air inlet runner 312, first accommodates Slot 314, the first holding tank 314 are used to accommodate the first gas diffusion layer 720 of membrane electrode 700, the first air inlet runner 311 and first The avoid holes of gasket 321 are connected to, and the second air inlet runner 312 is connected to the first holding tank 314.

As shown in figure 8, air supply system 800 is connected with the first air inlet runner 311, the second air inlet runner 312, the first inlet air flow Road 311, the second air inlet runner 312 can be connected in parallel, and air supply system 800 may include: gas source 810, pressure reducing valve 820, control Valve 830, pressure detecting table 840, gas source 810 can be air bottle type, and pressure reducing valve 820 can be electric-controlled type.The control of control valve 830 supplies The on-off of gas system 800, the adjustable pressure into air inlet runner of pressure reducing valve 820.

The first control valve 901, the second air inlet runner 312 and confession are equipped between first air inlet runner 311 and air supply system 800 The second control valve 902 is equipped between gas system 800.

When the first control valve 901 is closed, air supply system 800 and the first air inlet runner 311 are cut off, in the second control valve When 902 closing, air supply system 800 and the second air inlet runner 312 are cut off.

As shown in figure 5 and figure 7, the second mould 330 goes out flow channel 331 and the second holding tank 334, the second holding tank equipped with first 334 accommodate the second gas diffusion layer 730 of membrane electrode 700, and first goes out the connection of 331 second holding tank 334 of flow channel.

It is connected as shown in figure 8, detection system 600 goes out flow channel 331 with first, detection system 600 may include that flow is surveyed Try instrument.First goes out to be equipped with third control valve 903 between flow channel 331 and detection system 600.When third control valve 903 is opened, Detection system 600 can detecte the first flow or pressure for going out flow channel 331.

The working face of first mould 310 is equipped with the first mounting groove, and the first gasket 321 is installed on the first mounting groove, and first Gasket 321 protrudes from the working face of the first mould 310；The working face of second mould 330 is equipped with the second mounting groove, the second gasket 322 are installed on the second mounting groove, and the second gasket 322 protrudes from the working face of the second mould 330.First gasket 321 and Two gaskets 322 clamp two dielectric moldings 740 respectively.In this way, the installation of gasket is simple, accurate analogue membrane electricity can be simulated The assembly environment of pole 700.

Press mounting system 200 is connected with die assembly 300, to drive die assembly 300 to mold or die sinking, press mounting system 200 It can be pneumatic type or hydraulic drive type.

Membrane electrode 700 is clamped in die assembly 300, after press mounting system 200 drives die assembly 300 to mold, first Coolant inlet, hydrogen inlet, air intlet, coolant outlet, hydrogen outlet, the air of air inlet runner 311 and membrane electrode 700 Outlet.

It should be noted that above-mentioned first air inlet runner 311 can be an entire runner of connection, or independent It is multiple.

The device for detecting sealability 1000 of the fuel cell membrane electrode of the embodiment, with gas blowby detection operating mode and outside Leak detection operating mode.

It includes first stage and second stage that gas blowby, which detects operating mode,.

First stage, air supply system 800 are opened, and it includes opening gas source 810, adjusting pressure reducing valve that air supply system 800, which is opened, 820, set the first admission pressure.First control valve 901, third control valve 903 are opened, and the second control valve 902 is closed, observation The amount of leakage of the detection of detection system 600 (when detection system 600 includes flow tester, leakage rate is Gas leak flow).

If amount of leakage is not more than first object value, preliminary to indicate that proton exchange membrane 710 is intact.If amount of leakage is greater than the first mesh Scale value then shows 710 gas leakage of proton exchange membrane or breakage, this membrane electrode 700 is off quality.

Gas source 810 and all control valves 830 are closed after detection.

Second stage, air supply system 800 are opened, and are opened gas source 810, are adjusted pressure reducing valve 820, set the second admission pressure. Second control valve 902, third control valve 903 are opened, and the first control valve 901 is closed, and observe letting out for the detection of detection system 600 Dew amount.

If amount of leakage is not more than the second target value, show each air inlet/outlet and 710 region of proton exchange membrane not gas blowby.If letting out Dew amount is greater than the second target value, then shows that membrane electrode 700 has gas blowby, this 700 hot pressing of membrane electrode is unqualified.

Gas source 810 and all control valves 830 are closed after detection.

In outer leak detection operating mode, air supply system 800 is opened, and is opened gas source 810, is adjusted pressure reducing valve 820, setting the Three admission pressures.Second control valve 902 is opened, and the first control valve 901, third control valve 903 are closed, and closes gas after the object time The reading of pressure detecting table 840 is observed in source 810, if pressure detecting table 840 falls pressure amount no more than third target value, the film Electrode 700 does not leak outside.

It should be noted that the detection ordering of above-mentioned gas blowby detection and outer leak detection does not limit specifically.But it detects Gas source 810 and control valve 830 are closed after the completion；200 pressure release of subsequent press mounting system, takes out membrane electrode 700, then this membrane electrode 700 Detection finishes.

According to the device for detecting sealability 1000 of the fuel cell membrane electrode of the utility model embodiment, pass through design and film The applicable die assembly 300 of electrode 700, can precisely simulate the assembled state of membrane electrode 700, in this way in detection membrane electrode 700 Shi Wuxu installs bipolar plates, and quick and precisely to detect 700 leakproofness of membrane electrode, the operating time is short, and can carry out film electricity simultaneously The leakage of pole 700 and gas blowby detection, clamped one time realize a variety of performing leak tests, and high production efficiency can really be used for fuel electricity In the producing line of pond.

In some embodiments, as shown in Fig. 5-Fig. 6, the first air inlet runner 311, the second air inlet runner 312 include setting In 310 connector of the first mould, the first air inlet runner 311 further includes that the first mould first of the working face set on the first mould 310 is open 315, first the first opening 315 of mould is connected to six avoid holes of the first gasket 321, and the second air inlet runner 312 further includes setting In first the second opening of mould 316 of the first holding tank 314.As shown in fig. 6, first the first opening of mould 315 includes being sequentially connected First segment, second segment and third section, first segment are connected to three avoid holes of the first gasket 321, third section and the first sealing The other three avoid holes connection of pad 321, first segment and third section are respectively provided at the opposite two sides of the first holding tank 314, the Three sections of sides away from 310 connector of the first mould for being located at the first holding tank 314.First the first opening of mould 315 can be for set on the The C-channel of the working face of one mould 310, and the C-channel is set to the periphery of the first holding tank 314.First to go out flow channel 331 include the Two moulds, 330 connector and the second mould opening 335 set on the second holding tank 334.

In some embodiments, die assembly 300 is removably installed in the output end of press mounting system 200, and set of molds The shape and runner of the working face of part 300, the first gasket 321, the first gasket 321 shape matched with membrane electrode 700. In this way, whole device 1000 need to replace die assembly 300 when replacing the membrane electrode 700 of different model.

Press mounting system 200 includes walking mechanism, cylinder, pressure-control valve 830, directional control valve 830, flow control valve 830, pressure sensor, the first pressure head 210 and the second pressure head 220.Wherein walking mechanism and cylinder provide the stroke of pressure head and move Power；Pressure-control valve 830 is controlled by control system 500, adjusts the size of pneumatic power output；Directional control valve 830 is by control system 500 control of system, controls the direction of motion of cylinder；Speed control valve 830 is controlled by control system 500, controls the movement speed of cylinder Degree；The pressure assembling force size of pressure sensor real-time monitoring press mounting system 200；First pressure head 210 and the first mould 310 are connected by screw thread Fitting is connected, and the first mould 310 is moved with the first pressure head 210；Second pressure head 220 and the second mould 330 are connected through a screw thread part It is connected, the second mould 330 is moved with the second pressure head 220.

In actual execution, the output end of press mounting system 200 includes the first pressure head 210 and the second pressure head 220, the first pressure First 210, which are connected through a screw thread part with the first mould 310, is connected, and the second pressure head 220 is connected through a screw thread part with the second mould 330 and is connected.

In some embodiments, as depicted in figs. 1 and 2, the device for detecting sealability 1000 of fuel cell membrane electrode also wraps Include: control system 500, control system 500 are electrically connected with press mounting system 200, air supply system 800 and detection system 600, control system System 500 can control the pressure of press mounting system 200, traveling progress etc., and control system 500 can control opening for air supply system 800 It opens and closes, control system 500 controls the opening and closing of detection system 600 and automatically records detection data.

Control system 500 includes software and hardware, is the control axis of whole device 1000.Program can be write, is arranged Detection method and step adjust 200 stroke of press mounting system, speed and pressure etc..Control system is associated with detection system 600, Automatically record data.

First control valve 901, the second control valve 902, third control valve 903, the 4th control valve 904, the 5th control valve 905, the 6th control valve 906 can be electrically-controlled valve, and be electrically connected with control system 500.In this way convenient for control.

In some embodiments, as shown in Fig. 2, the device for detecting sealability 1000 of fuel cell membrane electrode can also wrap Include: cabinet 100, cabinet 100 are the skeletons of whole device 1000, provide the space for supporting and fixing remaining system, can use Metal plate is fabricated to type.

Cabinet 100 includes the first installation cavity, the second installation cavity, the third installation cavity separated from top to bottom, control system 500 and detection system 600 be installed on the first installation cavity, press mounting system 200 and die assembly 300 are installed on the second installation cavity, supply Gas system 800 is installed on third installation cavity.Multiple cavitys separated can prevent each system from interfering with each other, and whole device 1000 layer of structure is clear.

In some embodiments, as depicted in figs. 1 and 2, the device for detecting sealability 1000 of fuel cell membrane electrode may be used also To include: clamping system 400, clamping system 400 includes multi-axis mechanical arm, and multi-axis mechanical arm is for clamping simultaneously transport membrane electricity Pole 700.Clamping system 400 can substitute manual operation, and accurate positioning, operation is rapid, securely and reliably.

Disclosed herein as well is a kind of method for conducting leak test of fuel cell membrane electrode, this method need to use any of the above-described The device 1000 of kind embodiment is realized.

This method comprises the following steps:

Membrane electrode 700 to be detected is installed on die assembly 300 by step S10, piece uploading, is opened press mounting system 200 and is added It carries.

In actual execution, clamping speed, press fitting speed, pressure assembling force and flow tester are set in control system 500 Leakage rate；Control system 500 is manipulated, clamping system 400 clamps membrane electrode 700 and is placed on the second mould 330 tool, press mounting system 200 compress membrane electrode 700, are now in press fitting hold mode.

Step S20, gas blowby detection.The step includes following sub-step:

Sub-step S21, first stage open air supply system 800, open the first control valve 901, third control valve 903, close The second control valve 902 is closed, whether the amount of leakage for observing the detection of detection system 600 is greater than first object value.Gas is closed after detection Source 810 and all control valves 830.

If amount of leakage is not more than first object value, preliminary to indicate that proton exchange membrane 710 is intact.If amount of leakage is greater than the first mesh Scale value then shows 710 gas leakage of proton exchange membrane or breakage, this membrane electrode 700 is off quality.

Sub-step S22, second stage open air supply system 800, open the second control valve 902, third control valve 903, close The one or two control valve 830 is closed, whether the amount of leakage for observing the detection of detection system 600 is greater than the second target value.It is closed after detection Gas source 810 and all control valves 830.

If amount of leakage is not more than the second target value, show each air inlet/outlet and 710 region of proton exchange membrane not gas blowby.If letting out Dew amount is greater than the second target value, then shows that membrane electrode 700 has gas blowby, this 700 hot pressing of membrane electrode is unqualified.

This method can also include the following steps:

Step S30, outer leak detection, unlatching air supply system 800, the second control valve 902 of opening, the first control valve 901 of closing, Third control valve 903 closes gas source 810 after the object time, the reading of pressure detecting table 840 is observed, if pressure detecting table 840 falls Pressure amount is no more than third target value, then the membrane electrode 700 does not leak outside.Otherwise show that 700 hot pressing of membrane electrode is unqualified.

Gas source 810 and control valve 830 are closed after the completion of detection；200 pressure release of subsequent press mounting system, takes out membrane electrode 700, then The detection of this membrane electrode 700 finishes.

It should be noted that the detection ordering of above-mentioned gas blowby detection and outer leak detection does not limit specifically.

According to the method for conducting leak test of the fuel cell membrane electrode of the utility model embodiment, once clamps and supply three times Whether can quick and precisely detecting 710 gas leakage of proton exchange membrane, whether 700 gas blowby of membrane electrode, the hot press performance of membrane electrode 700, High production efficiency can really be used for fuel cell producing line.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (10)

1. a kind of device for detecting sealability of fuel cell membrane electrode characterized by comprising

For clamping the die assembly of membrane electrode to be detected, the die assembly includes: the first mould, the second mould, is installed on institute It states the first gasket of the working face of the first mould and is installed on the second gasket of the working face of second mould, described first is close Packing and second gasket are equipped with for avoid holes corresponding with the inlet and outlet of the membrane electrode, and first mould is equipped with For accommodating the first holding tank of the first gas diffusion layer of the membrane electrode, first mould is additionally provided with the first and second air inlets Runner, first air inlet runner are connected to the avoid holes of first gasket, second air inlet runner and described first Holding tank connection, second mould be equipped with for accommodate the second gas diffusion layer of the membrane electrode the second holding tank and with institute State the connection of the second holding tank first goes out flow channel；

Press mounting system, the press mounting system are connected with the die assembly, to drive the die assembly to mold or die sinking；

Air supply system, the air supply system are connected with first and second air inlet runner, first and second air inlet runner One-to-one first and second control valve is equipped between the air supply system；

Detection system, the detection system go out flow channel with described first and are connected, and described first goes out flow channel and the detection system Third control valve is equipped between system.

2. the device for detecting sealability of fuel cell membrane electrode according to claim 1, which is characterized in that first He Second air inlet runner includes the first die adapter, and first air inlet runner further includes the of the working face set on first mould One mould first is open, and first mould first is open to be connected to six avoid holes of first gasket, second air inlet Runner further includes first the second opening of mould set on first holding tank；

Described first to go out flow channel include the second die adapter and open set on the second mould of second holding tank.

3. the device for detecting sealability of fuel cell membrane electrode according to claim 2, which is characterized in that first mould First open first segment, second segment and third section including being sequentially connected, three of the first segment and first gasket Avoid holes connection, the third section is connected to the other three avoid holes of first gasket, the first segment and described the Three sections of opposite two sides for being respectively provided at first holding tank, the third section be located at first holding tank away from described The side of first die adapter.

4. the device for detecting sealability of fuel cell membrane electrode according to claim 1, which is characterized in that first mould Working face be equipped with the first mounting groove, first gasket is installed on first mounting groove, and the first gasket protrudes from The working face of first mould；

The working face of second mould is equipped with the second mounting groove, and second gasket is installed on second mounting groove, and the Two gaskets protrude from the working face of second mould.

5. the device for detecting sealability of fuel cell membrane electrode according to claim 1, which is characterized in that the set of molds Part is removably installed in the output end of the press mounting system, and the shape of the working face of the die assembly and runner, described First gasket, first gasket shape matched with the membrane electrode.

6. the device for detecting sealability of fuel cell membrane electrode according to claim 1, which is characterized in that further include: control System processed, the control system are electrically connected with the press mounting system, the air supply system and the detection system.

7. the device for detecting sealability of fuel cell membrane electrode according to claim 6, which is characterized in that described first to 6th control valve is electrically-controlled valve, and is electrically connected with the control system.

8. the device for detecting sealability of fuel cell membrane electrode according to claim 6, which is characterized in that further include: machine Cabinet, the cabinet include the first installation cavity, the second installation cavity, third installation cavity separated from top to bottom, the control system It is installed on first installation cavity with the detection system, the press mounting system and the die assembly are installed on second peace It behave affectedly, the air supply system is installed on the third installation cavity.

9. the device for detecting sealability of fuel cell membrane electrode according to claim 1, which is characterized in that further include: folder System is taken, the clamping system includes multi-axis mechanical arm, and the multi-axis mechanical arm is for clamping and conveying the membrane electrode.

10. the device for detecting sealability of fuel cell membrane electrode according to claim 1 to 9, feature exist In described device has gas blowby detection operating mode and outer leak detection operating mode；

Gas blowby detection operating mode includes first stage and second stage, wherein

First stage, the air supply system are opened, and first control valve, the third control valve are opened, second control Valve processed is closed；

Second stage, the air supply system are opened, and second control valve, the third control valve are opened, first control Valve processed is closed；

In the outer leak detection operating mode, the air supply system is opened, and second control valve is opened, first control Valve, the third control valve are closed, and close gas source after the object time.