CN116609256B - Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell - Google Patents
Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell Download PDFInfo
- Publication number
- CN116609256B CN116609256B CN202310889842.6A CN202310889842A CN116609256B CN 116609256 B CN116609256 B CN 116609256B CN 202310889842 A CN202310889842 A CN 202310889842A CN 116609256 B CN116609256 B CN 116609256B
- Authority
- CN
- China
- Prior art keywords
- plate
- clamping
- bipolar plate
- block
- motor
- 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.)
- Active
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 239000011248 coating agent Substances 0.000 title claims abstract description 26
- 238000000576 coating method Methods 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 title claims abstract description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000001257 hydrogen Substances 0.000 title claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 20
- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 230000009471 action Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 31
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a device and a method for detecting the corrosion resistance of a metal bipolar plate coating of a hydrogen fuel cell, and relates to the technical field of corrosion resistance detection. According to the invention, the connecting mechanism, the plate rotator and the buckling rotating piece are arranged, the telescopic cylinder is stretched through the controller after the bipolar plate is soaked for a period of time, the motor is electrified through the operation of the connecting mechanism in the process, and the corrosive liquid attached to the surface of the bipolar plate is separated under the action of centrifugal force through the cooperation of the plate rotator and the buckling rotating piece when the motor operates, so that a large amount of corrosive liquid attached to the surface of the bipolar plate can be prevented from influencing the detection of the subsequent bipolar plate, the bipolar plate does not need to be cleaned independently, a large amount of time is saved, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of corrosion resistance detection, in particular to a device and a method for detecting corrosion resistance of a metal bipolar plate coating of a hydrogen fuel cell.
Background
The hydrogen fuel cell is a power generation device for directly converting chemical energy of hydrogen and oxygen into electric energy, and the bipolar plate is one of important components in the hydrogen fuel cell, and has the function of providing a gas flow channel to prevent hydrogen and oxygen in a cell air chamber from being communicated, and the metal bipolar plate is easy to corrode under the severe conditions of strong acid, high humidity and high temperature, and dissolved metal ions can damage a membrane and a catalyst, so that the performance and the service life of the fuel cell are reduced, and an anti-corrosion coating is required to be smeared on the surface of the bipolar plate when the bipolar plate is put into use.
Generally, when the corrosion resistance of the bipolar plate coating is detected, the bipolar plate coating needs to be immersed in the modulated corrosion liquid, the corrosion resistance of the bipolar plate corrosion coating is estimated by observing the change of the surface of the bipolar plate, after the bipolar plate is immersed in the corrosion liquid, workers are required to take out the bipolar plate for watching after a period of interval, after the bipolar plate is taken out, in order to prevent the corrosion liquid attached to the surface of the bipolar plate from affecting the watching of the workers, the corrosion liquid attached to the surface of the bipolar plate is required to be cleaned, the operation is complex, and a large amount of time is wasted, so that the overall detection efficiency of equipment is affected.
Disclosure of Invention
The invention aims at: in order to solve the problem that the surface of the taken bipolar plate is inconvenient to clean, the device and the method for detecting the corrosion resistance of the metal bipolar plate coating of the hydrogen fuel cell are provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hydrogen fuel cell metal bipolar plate coating corrosion resistance detection device, includes the detection case, the internally mounted of detection case has cuts apart the deflector, the flowing back chamber that is located the deflector top is seted up to the inboard of detection case, the inboard of detection case is provided with the detection chamber that is located the deflector below of cutting apart, the controller is installed to the one end of detection case, the both sides of detection case are fixed with the layer board, flexible cylinder is installed at the top of layer board, flexible cylinder's output is connected with the link, and the one end of link extends to the inboard of flowing back chamber, the one end bottom of link is fixed with the fly leaf that is located the deflector top of cutting apart, one side of link is provided with the mount pad that is located the fly leaf top, the motor is installed at the top of mount pad, one side of layer board is provided with the link mechanism that links to each other with the motor, the inboard of fly leaf is provided with the board ware, the output of motor is provided with the knot that links to each other with the board ware.
As still further aspects of the invention: the connecting mechanism comprises a guide block fixed on one side of a supporting plate, the outer side of the guide block is slidably connected with a movable sliding block, the inner side of the guide block is provided with a reset spring connected with the top of the movable sliding block, one side of the guide block is provided with an L-shaped guide rail positioned on one side of a telescopic cylinder away from a detection box, one side of the movable sliding block is inserted with a transverse movable block penetrating through the other side of the movable sliding block, one side of the transverse movable block, which is close to the telescopic cylinder, is fixedly provided with a shifting pin, the shifting pin is slidably connected with the inner side of the L-shaped guide rail, one side of the transverse movable block away from the shifting pin is rotatably connected with a shifting plate through a rotating shaft, the bottom of the shifting plate is provided with a second contact plate, the outer side of the rotating shaft connected with the movable sliding block is connected with a torsion spring, one side of the transverse movable block away from the shifting pin is fixedly provided with a blocking rod positioned above the shifting plate, one side of the connecting frame is fixedly provided with a side connecting frame, the bottom of the side connecting frame is provided with a first contact plate, and the first contact plate is positioned below the shifting plate.
As still further aspects of the invention: the second contact piece is in telecommunication connection with the motor through a wire, and the first contact piece is in electric connection with an external power supply through a wire.
As still further aspects of the invention: the utility model provides a rotatory board ware, including seting up in the inboard setting groove of fly leaf, the setting groove runs through to the bottom of fly leaf from the top of fly leaf, the inboard of setting groove is connected with the pendulum position ring through the pivot rotation, the inboard of pendulum position ring is connected with the division dish through the bearing rotation, the division groove that runs through to pendulum position ring bottom is seted up at the top of dividing the dish, the top of pendulum position ring is fixed with the vaulting pole link plate that is located division groove one side, one side of vaulting pole link plate is provided with the two-way lead screw that runs through to the vaulting pole link plate opposite side, the spacing spout that is located two-way lead screw below has been seted up at the top of division dish, the inboard sliding connection of spacing spout has splint, and splint cup joint in the outside of two-way lead screw, the top of vaulting pole link plate is provided with because carries out spacing the unit that hinders soon to two-way lead screw.
As still further aspects of the invention: the number of the clamping plates is two, the two clamping plates are symmetrically arranged along the vertical central axis of the bidirectional screw rod, and one side of each clamping plate is provided with a threaded hole matched with the outer side of the bidirectional screw rod.
As still further aspects of the invention: the anti-rotation unit comprises a clamping connecting plate fixed at the top of the supporting rod connecting plate, a pull frame is slidably connected to the outer side of the clamping connecting plate, an anti-rotation spring connected with the top of the clamping connecting plate is arranged on the inner side of the pull frame, an arc-shaped antiskid plate is arranged at the bottom of the pull frame, and an antiskid turntable located below the arc-shaped antiskid plate is arranged on the outer side of the bidirectional screw rod.
As still further aspects of the invention: the buckling and rotating piece comprises a buckling and rotating block connected to the output end of the motor, a supporting and fixing rod penetrating through the other side of the buckling and rotating block is fixed to one side of the buckling and rotating block, fixing clamping columns are fixed to two ends of the supporting and fixing rod, clamping holes are formed in the outer sides of the fixing and fixing columns, side fixing plates are connected to the outer sides of the supporting and fixing rods through shaft rotation, the side fixing plates are located between the buckling and rotating block and the fixing and fixing columns, clamping blocks are sleeved on the outer sides of the side fixing plates, buckling springs connected with the inner sides of the clamping blocks are arranged at the bottoms of the side fixing plates, a shifting frame located on the outer sides of the side fixing plates is arranged at the top of the shifting frame, positioning clamping pins located above the fixing and fixing columns are inserted into the inner sides of the clamping holes, clamping grooves located on the two sides of the dividing plates are formed in the top of the dividing plate, and the bottoms of the clamping blocks are buckled on the inner sides of the clamping grooves.
As still further aspects of the invention: the number of the clamping holes is two, the two clamping holes are distributed at ninety degrees along the circle center of the fixed clamping column, and the diameters of the positioning clamping pins and the clamping holes are equal.
As still further aspects of the invention: the inside of screens piece is provided with the cavity that agrees with mutually with detaining the position spring, the top of screens piece is provided with the through-hole that agrees with mutually with the side fixed plate bottom.
The invention also discloses a method for detecting the corrosion resistance of the metal bipolar plate coating of the hydrogen fuel cell, which adopts the device for detecting the corrosion resistance of the metal bipolar plate coating of the hydrogen fuel cell and comprises the following steps:
s1: when the corrosion resistance of the surface coating of the metal bipolar plate is detected, firstly pouring the prepared corrosion liquid into a detection cavity;
s2: the bipolar plate is moved to the inner side of the dividing groove, then the bidirectional screw rod is rotated, and the clamping plate limited by the limiting chute moves towards the bipolar plate through the rotation of the bidirectional screw rod, so that the bipolar plate is clamped and fixed, and the bipolar plate is divided into two parts;
s3: the controller controls the shrinkage of the telescopic cylinder to enable the bipolar plate to be immersed in the corrosive liquid in the detection cavity, at the moment, the bipolar plate immersed in the corrosive liquid can be regarded as a detection part, and the bipolar plate part above the movable plate can be regarded as a comparison part;
s4: when the movable plate moves upwards under the action of the telescopic air cylinder, the first contact piece is contacted with the second contact piece under the drive of the side connecting frame, at the moment, the external power supply supplies power to the motor through the first contact piece and the second contact piece, the motor operates at the moment, and the motor rotates to drive the dividing disc to rotate through the buckling position rotating block, the supporting and positioning rod, the side positioning plate, the clamping position block and the clamping position groove, so that corrosive liquid attached to the outer side of the bipolar plate is separated under the action of centrifugal force, and the influence of a large amount of corrosive liquid on the viewing of the bipolar plate is prevented;
s5: when the telescopic cylinder is fully extended, the transverse movable block moves towards the detection box under the guide of the inclined part of the top of the L-shaped guide rail, so that the second contact piece and the first contact piece are dislocated, the positioning plate loses support at the moment, the movable slide block is restored under the action of the reset spring, the positioning plate is positioned below the first contact piece, and when the telescopic cylinder is contracted, the first contact piece presses the positioning plate, so that the positioning plate swings downwards relative to the transverse movable block, and the height of the first contact piece is lower than that of the movable slide block, so that the positioning plate is restored under the action of the torsion spring, and convenience is provided for subsequent use;
s6: pulling the shifting frame to make the opposite side fixing plate of the clamping block move upwards, at the moment, the positioning clamping pin is separated from the clamping hole, meanwhile, the clamping block is separated from the clamping groove, then the side fixing plate is rotated ninety degrees and the clamping block is loosened, so that the clamping block is restored under the action of the clamping spring, the positioning clamping pin can be buckled into the corresponding clamping hole, the motor is prevented from being connected with the split disc, the positioning ring can be rotated, the positioning ring can rotate relative to the movable plate, the bipolar plate is horizontally placed, the detection part and the comparison part of the bipolar plate can be compared and watched through manually rotating the split disc, the bipolar plate is not required to be taken down, watched and clamped and fixed in the process, the labor intensity of workers is relieved, and the detection efficiency is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up and connecting position mechanism, rotating the board, buckling and rotating the piece, make the flexible cylinder extend through the controller after soaking the bipolar plate for a period of time, so make the bipolar plate move out of the detection cavity, carry on the processing of circular telegram to the motor through the operation that connects position mechanism in this process, the motor operates at this moment, make the corrosive liquid that the surface of bipolar plate adheres to separate under the effect of centrifugal force through rotating the cooperation of board and buckling and rotating the piece while the motor operates, so can prevent that a large amount of corrosive liquids that the surface adheres to bipolar plate from influencing the detection of the subsequent bipolar plate, need not to clear up the bipolar plate alone, has saved a large amount of time, has raised the detection efficiency;
2. before a coating on the surface of the bipolar plate is detected, the bipolar plate is moved to the inner side of the dividing groove, then the clamping plate clamps and fixes the bipolar plate by rotating the bidirectional screw rod, so that the bipolar plate is divided into two parts, when the movable plate moves to the lowest part, the bipolar plate part below the movable plate can be immersed into corrosive liquid in a detection cavity, at the moment, the bipolar plate immersed into the corrosive liquid can be regarded as a detection part, the bipolar plate part above the movable plate can be regarded as a contrast part, when the movable plate moves upwards under the action of the telescopic cylinder, the dividing plate rotates relative to the positioning ring through the cooperation between the motor and the buckling rotating piece, and therefore, the surface corrosive liquid of the detection part in the bipolar plate can be separated from the bipolar plate, the corrosive liquid can be prevented from affecting the detection and the view of a worker, meanwhile, the change of the bipolar plate after the bipolar plate is immersed into the corrosive liquid can be clearly seen through the contrast between the contrast part and the detection part in the bipolar plate, and the accuracy of detection data can be improved;
3. through setting up and detaining the rotating member, when the motor rotates, accessible detains the position commentaries on classics piece, support the dead lever, the side fixed plate, the screens piece, the division dish rotates of screens drive, thereby make the corrosive liquid that the bipolar plate outside adheres to separate under the effect of centrifugal force, when the bipolar plate shifts out the flowing back chamber, can pull the shifting frame, make screens piece opposite side fixed plate move up, the screens bayonet lock separates with the card even hole this moment, the screens piece separates with the screens groove simultaneously, then rotate ninety degrees and loosen the screens piece, make the screens piece recover under the effect of detaining the position spring, so alright make the screens bayonet lock detain in corresponding card even hole, thereby make the motor lose the connection to the division dish, afterwards alright rotate the pendulum ring, make pendulum ring rotate relative to the movable plate, thereby make the bipolar plate put down horizontally, afterwards, accessible manual rotation division dish is to the bipolar plate's detection portion, contrast portion each position is watched, the bipolar plate need not be taken down in this process, watch, the centre gripping is fixed, the operation is simple, work intensity is also improved, the work intensity is improved simultaneously;
4. through setting up and hinder soon the unit, accomplish the preceding upward pulling with two-way lead screw rotation and draw the frame for arc antiskid ribbed tile and anti-skidding carousel separation, alright rotate two-way lead screw afterwards, can loosen and draw the frame after accomplishing two-way lead screw rotation, draw the frame and just can drive drawing the frame and recover under the elastic restoring force effect that hinders the spiral spring this moment, make the arc antiskid ribbed tile detain in anti-skidding carousel's outside, thereby increase the resistance that needs overcome when two-way lead screw rotates, thereby improved the stability of two-way lead screw, thereby improve the stability that splint to bipolar plate clamp.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the detection box according to the present invention;
FIG. 3 is a schematic view of a connecting mechanism according to the present invention;
FIG. 4 is a schematic diagram of the connection of the guide block and the movable slider of the present invention;
FIG. 5 is a schematic diagram of the connection of the motor and the movable plate according to the present invention;
FIG. 6 is a schematic view of the structure of the plate rotator of the present invention;
FIG. 7 is a schematic view of the structure of the split disc of the present invention;
FIG. 8 is a schematic view of a fastening rotor according to the present invention;
fig. 9 is a schematic connection diagram of the side fixing plate and the clamping block according to the present invention.
In the figure: 1. a detection box; 2. a controller; 3. a liquid discharge cavity; 4. a detection chamber; 5. dividing the annular plate; 601. a supporting plate; 602. a telescopic cylinder; 603. a guide block; 604. a connecting frame; 605. a motor; 606. moving the slide block; 607. a side connecting frame; 608. a positioning plate; 609. a first contact; 610. an L-shaped guide rail; 611. a transverse movable block; 612. a return spring; 613. a mounting base; 614. a shift pin; 615. a second contact; 616. a torsion spring; 617. a displacement preventing rod; 618. a buckling position rotating block; 619. a side fixing plate; 620. a shift rack; 621. a positioning ring; 622. a dividing plate; 623. a clamping groove; 624. a clamping block; 625. fixing the clamping column; 626. a support fixed rod; 627. a two-way screw rod; 628. a pulling frame; 629. limiting sliding grooves; 630. a clamping plate; 631. a dividing groove; 632. a clamping connecting plate; 633. a rotation-resisting spring; 634. a buckling spring; 635. arc antiskid plates; 636. a stay bar connecting plate; 637. an anti-slip turntable; 638. a positioning bayonet lock; 639. a clamping connecting hole; 640. a setting groove; 641. a movable plate.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Referring to fig. 1 to 9, in an embodiment of the present invention, a device for detecting corrosion resistance of a metal bipolar plate coating of a hydrogen fuel cell includes a detection box 1, a split ring plate 5 is installed inside the detection box 1, a liquid draining cavity 3 located above the split ring plate 5 is provided on the inner side of the detection box 1, a detection cavity 4 located below the split ring plate 5 is provided on the inner side of the detection box 1, a controller 2 is installed at one end of the detection box 1, a supporting plate 601 is fixed on two sides of the detection box 1, a telescopic cylinder 602 is installed at the top of the supporting plate 601, a connecting frame 604 is connected to an output end of the telescopic cylinder 602, one end of the connecting frame 604 extends to the inner side of the liquid draining cavity 3, a movable plate 641 located above the split ring plate 5 is fixed at one end bottom of the connecting frame 604, a mounting seat 613 located above the movable plate 641 is provided on one side of the connecting frame 604, a motor 605 is installed on the top of the mounting seat 613, a connecting mechanism connected to the motor 605 is provided on one side of the movable plate 601, a plate 641 is provided on the inner side, and an output end of the motor 605 is provided with a rotary plate connecting piece connected to the rotary plate 641.
In this embodiment: when the corrosion resistance of the surface coating of the metal bipolar plate is detected, the prepared corrosion liquid is poured into the detection cavity 4, the bipolar plate to be detected is arranged on the inner side of the movable plate 641 through the plate rotator, connection between the motor 605 and the plate rotator is realized through operation of the buckling rotator, the bipolar plate is immersed into the corrosion liquid in the detection cavity 4 through control of the controller 2 to shrink the telescopic cylinder 602, the telescopic cylinder 602 stretches after the bipolar plate is immersed for a period of time through the controller 2, so that the bipolar plate moves out of the detection cavity 4, the motor 605 is electrified through operation of the connecting mechanism in the process, at the moment, the motor 605 operates, the corrosion liquid attached to the surface of the bipolar plate is separated under the action of centrifugal force through cooperation of the plate rotator and the buckling rotator when the motor 605 operates, the connecting mechanism recovers when the telescopic cylinder 602 is fully stretched, at the moment, the motor 605 stops operating, and then the bipolar plate is detected and watched.
Referring to fig. 1 to 4, the connecting mechanism includes a guide block 603 fixed on one side of the supporting plate 601, a moving slide block 606 slidably connected to the outer side of the guide block 603, a return spring 612 connected to the top of the moving slide block 606 is disposed on the inner side of the guide block 603, an L-shaped guide rail 610 located on one side of the telescopic cylinder 602 far away from the detection box 1 is disposed on one side of the guide block 603, a lateral movable block 611 penetrating to the other side of the moving slide block 606 is inserted on one side of the moving slide block 606, a shifting pin 614 is fixed on one side of the lateral movable block 611 near the telescopic cylinder 602, the shifting pin 614 is slidably connected to the inner side of the L-shaped guide rail 610, a second contact piece 615 is mounted on the bottom of the swinging plate 608, a blocking rod 617 is fixed on one side of the lateral movable block 611 far away from the shifting pin 614, the blocking rod 617 is located above the swinging plate 608, a side of the connecting frame 607 is fixed on one side of the connecting frame 607, a first contact piece 609 is mounted on the bottom of the side frame 607, and a first contact piece 609 is mounted on the bottom of the swinging plate 609.
In this embodiment: when the connecting frame 604 moves up slowly relative to the detection box 1 under the action of the telescopic cylinder 602, the first contact piece 609 is driven by the side connecting frame 607 to contact with the second contact piece 615, at this time, the external power supply supplies power to the motor 605 through the first contact piece 609 and the second contact piece 615, at this time, the motor 605 operates, the bipolar plate is driven to rotate by the cooperation of the buckling rotating piece and the rotating plate device during the operation of the motor 605, so that the corrosive liquid attached to the surface of the bipolar plate is separated from the bipolar plate under the action of centrifugal force, the corrosive liquid is prevented from affecting the detection and viewing of the subsequent bipolar plate, when the telescopic cylinder 602 is fully extended, the transverse movable block 611 moves towards the detection box 1 under the guide of the inclined position at the top of the L-shaped guide rail 610, so that the second contact piece 615 and the first contact piece 609 are dislocated, at this time, the swing plate 608 loses support, and therefore, the movable slide block 606 is positioned below the first contact piece 609 under the action of the reset spring 612, the first contact piece 608 is contracted, and the movable block 608 is conveniently pressed down, so that the swing plate 608 is conveniently moved downwards under the action of the first swing plate 608, and the swing plate 608 is enabled to be convenient.
Referring to fig. 3 and 4, the second contact 615 is electrically connected to the motor 605 via a wire, and the first contact 609 is electrically connected to an external power source via a wire.
In this embodiment: by providing this structure, the motor 605 is operated when the first contact 609 is in contact with the second contact 615, so that the timing of the operation of the motor 605 is controlled, and no separate operation of the motor 605 by a worker is required.
Referring to fig. 2, 5, 6 and 7, the plate rotator includes a setting groove 640 formed on the inner side of a movable plate 641, the setting groove 640 penetrates from the top of the movable plate 641 to the bottom of the movable plate 641, the inner side of the setting groove 640 is rotatably connected with a positioning ring 621 through a rotating shaft, the inner side of the positioning ring 621 is rotatably connected with a dividing plate 622 through a bearing, the top of the dividing plate 622 is provided with a dividing groove 631 penetrating to the bottom of the positioning ring 621, the top of the positioning ring 621 is fixed with a supporting rod connecting plate 636 located on one side of the dividing groove 631, one side of the supporting rod connecting plate 636 is provided with a bidirectional screw rod 627 penetrating to the other side of the supporting rod connecting plate 636, the top of the dividing plate 622 is provided with a limiting chute 629 located below the bidirectional screw rod 627, the inner side of the limiting chute 629 is slidably connected with a clamping plate 630, the clamping plate 630 is sleeved on the outer side of the bidirectional screw rod 627, and the top of the supporting rod connecting plate 636 is provided with a rotation blocking unit for limiting the bidirectional screw rod 627.
In this embodiment: before the coating on the surface of the bipolar plate is detected, the bipolar plate is moved to the inner side of the dividing groove 631, then the bidirectional screw rod 627 is rotated, the clamping plate 630 limited by the limiting sliding groove 629 moves towards the bipolar plate through the rotation of the bidirectional screw rod 627, so that the bipolar plate is clamped and fixed, the bipolar plate is divided into two parts, when the movable plate 641 moves to the lowest position, the bipolar plate part positioned below the movable plate 641 is immersed into the corrosive liquid in the detection cavity 4, at the moment, the bipolar plate immersed into the corrosive liquid is regarded as a detection part, the bipolar plate part positioned above the movable plate 641 can be regarded as a comparison part, when the movable plate 641 moves upwards under the action of the telescopic cylinder 602, the dividing plate 622 is rotated relative to the positioning ring 621 through the cooperation between the motor 605 and the buckling rotating piece, so that the surface corrosive liquid of the detection part in the bipolar plate is separated from the bipolar plate, and the corrosive liquid can be prevented from affecting the detection and viewing of the bipolar plate by workers, and meanwhile, the change after the bipolar plate immersed into the corrosive liquid can be clearly seen through the comparison between the comparison part and the detection part in the bipolar plate.
Referring to fig. 7, two clamping plates 630 are provided, and the two clamping plates 630 are symmetrically arranged along the vertical central axis of the bidirectional screw rod 627, and a threaded hole matched with the outer side of the bidirectional screw rod 627 is formed in one side of the clamping plate 630.
In this embodiment: by arranging the structure, when the bidirectional screw rod 627 rotates relative to the dividing plate 622, the two clamping plates 630 move relatively along the bidirectional screw rod 627, so that the stability of clamping the bipolar plate by the clamping plates 630 is improved.
Referring to fig. 7, the rotation blocking unit includes a clamping connecting plate 632 fixed on the top of a supporting rod connecting plate 636, a pull frame 628 slidably connected to the outer side of the clamping connecting plate 632, a rotation blocking spring 633 connected to the top of the clamping connecting plate 632 and disposed on the inner side of the pull frame 628, an arc-shaped anti-slip plate 635 disposed on the bottom of the pull frame 628, and an anti-slip turntable 637 disposed below the arc-shaped anti-slip plate 635 and disposed on the outer side of the bidirectional screw rod 627.
In this embodiment: the pull frame 628 is pulled upwards before the rotation of the bidirectional screw rod 627 is completed, so that the arc-shaped anti-skid plate 635 is separated from the anti-skid rotary disc 637, the bidirectional screw rod 627 can be rotated, the pull frame 628 can be loosened after the rotation of the bidirectional screw rod 627 is completed, at the moment, the pull frame 628 can drive the pull frame 628 to recover under the action of the elastic restoring force of the rotation-resistant spring 633, the arc-shaped anti-skid plate 635 is buckled on the outer side of the anti-skid rotary disc 637, the resistance required to be overcome when the bidirectional screw rod 627 rotates is increased, and the stability of the bidirectional screw rod 627 is improved, so that the stability of clamping plates 630 for clamping bipolar plates is improved.
Referring to fig. 2, 5, 8 and 9, the fastening rotating member includes a fastening rotating block 618 connected to an output end of the motor 605, a supporting and fixing rod 626 penetrating through the fastening rotating block 618 to the other side of the fastening rotating block 618 is fixed to one side of the fastening rotating block 618, fixing posts 625 are fixed to two ends of the supporting and fixing rod 626, a fastening hole 639 is formed in an outer side of the fixing posts 625, a side fixing plate 619 is connected to an outer side of the supporting and fixing rod 626 through shaft rotation, the side fixing plate 619 is located between the fastening rotating block 618 and the fixing posts 625, a fastening block 624 is sleeved on an outer side of the side fixing plate 619, a fastening spring 634 connected to an inner side of the fastening block 624 is arranged at a bottom of the side fixing plate 619, a shifting frame 620 located at an outer side of the side fixing plate 619 is arranged at a top of the shifting frame 620, a positioning clamping pin 638 located above the fixing posts 625 is fixed to one side of the shifting frame 620, the top of the dividing plate 622 is connected to an inner side of the clamping hole 639 in a plugging mode, a clamping groove 623 located at two sides of the dividing plate 622 is formed in a top of the dividing plate 622, and a bottom of the fastening block 624 is located at an inner side of the clamping groove 623.
In this embodiment: when the motor 605 rotates, the dividing plate 622 is driven to rotate by the buckling rotating block 618, the supporting fixing rod 626, the side fixing plate 619, the clamping block 624 and the clamping groove 623, so that corrosive liquid attached to the outer side of the bipolar plate is separated under the action of centrifugal force, when the bipolar plate moves out of the liquid discharging cavity 3, the shifting frame 620 can be pulled to enable the clamping block 624 to move upwards relative to the side fixing plate 619, at the moment, the positioning clamping pin 638 is separated from the clamping hole 639, meanwhile, the clamping block 624 is separated from the clamping groove 623, then the side fixing plate 619 is rotated for ninety degrees and the clamping block 624 is loosened, so that the clamping block 624 is restored under the action of the buckling spring 634, the positioning clamping pin 638 can be buckled into the corresponding clamping hole 639, the motor 605 can be disconnected with the dividing plate 622, then the positioning ring 621 can be rotated, the positioning ring 621 can rotate relative to the movable plate 641, the bipolar plate can be horizontally placed, and then the detecting part and the comparison part of the bipolar plate can be manually rotated, the comparison part of the bipolar plate can be compared, the viewing efficiency is improved, and the viewing efficiency is also improved, and the viewing efficiency is simple, and the viewing efficiency is improved, and the viewing efficiency is also is improved.
Referring to fig. 8, two clamping holes 639 are provided, and the two clamping holes 639 are distributed at ninety degrees along the center of the fixing clamping column 625, and the diameters of the positioning clamping pins 638 and the clamping holes 639 are equal.
In this embodiment: by providing this structure, the side fixing plate 619 can be fastened into the other fastening hole 639 to fix the side fixing plate 619 after the side fixing plate 619 rotates ninety degrees relative to the support fixing rod 626, thereby facilitating the rotation of the dividing plate 622 and the positioning ring 621.
Referring to fig. 9, a cavity matching with the buckling spring 634 is provided on the inner side of the buckling block 624, and a through hole matching with the bottom of the side fixing plate 619 is provided on the top of the buckling block 624.
In this embodiment: this configuration provides a certain amount of play for the detent block 624.
The following provides a method for detecting the corrosion resistance of a metal bipolar plate coating of a hydrogen fuel cell by combining the device for detecting the corrosion resistance of the metal bipolar plate coating of the hydrogen fuel cell, which specifically comprises the following steps:
s1: when the corrosion resistance of the surface coating of the metal bipolar plate is detected, firstly pouring the prepared corrosion liquid into the detection cavity 4;
s2: the bipolar plate is moved to the inner side of the dividing groove 631, then the bidirectional screw rod 627 is rotated, and the clamping plate 630 limited by the limiting chute 629 moves towards the bipolar plate through the rotation of the bidirectional screw rod 627, so that the bipolar plate is clamped and fixed, and the bipolar plate is divided into two parts;
s3: the controller 2 controls the contraction of the telescopic cylinder 602 to immerse the bipolar plate in the corrosive liquid in the detection cavity 4, at this time, the bipolar plate immersed in the corrosive liquid can be regarded as a detection part, and the bipolar plate part above the movable plate 641 can be regarded as a comparison part;
s4: when the movable plate 641 moves upwards under the action of the telescopic cylinder 602, the first contact piece 609 is contacted with the second contact piece 615 under the drive of the side connecting frame 607, at this time, the external power supply supplies power to the motor 605 through the first contact piece 609 and the second contact piece 615, at this time, the motor 605 operates, and when the motor 605 rotates, the buckling rotary block 618, the supporting fixed rod 626, the side fixed plate 619, the clamping block 624 and the clamping groove 623 can drive the dividing plate 622 to rotate, so that corrosive liquid attached to the outer side of the bipolar plate is separated under the action of centrifugal force, and a large amount of corrosive liquid is prevented from affecting the viewing of the bipolar plate;
s5: when the telescopic cylinder 602 is fully extended, the transverse movable block 611 moves towards the detection box 1 under the guide of the inclined position at the top of the L-shaped guide rail 610, so that the second contact 615 and the first contact 609 are dislocated, at the moment, the positioning plate 608 loses support, the movable slide block 606 is restored under the action of the return spring 612, at the moment, the positioning plate 608 is positioned under the first contact 609, and when the telescopic cylinder 602 is contracted, the first contact 609 presses the positioning plate 608, so that the positioning plate 608 swings downwards relative to the transverse movable block 611, and the height of the first contact 609 is lower than that of the movable slide block 606, the positioning plate 608 is restored under the action of the torsion spring 616, so that convenience is provided for subsequent use;
s6: pulling the shift frame 620 to make the opposite side fixing plate 619 of the block 624 move upwards, at this time, the position-adjusting bayonet 638 is separated from the bayonet hole 639, at the same time, the block 624 is separated from the bayonet slot 623, then the side fixing plate 619 is rotated ninety degrees and the block 624 is released, so that the block 624 is restored under the action of the buckling spring 634, the position-adjusting bayonet 638 is buckled into the corresponding bayonet hole 639, so that the motor 605 loses the connection with the split disc 622, then the positioning ring 621 is rotated to make the positioning ring 621 rotate relative to the movable plate 641, so that the bipolar plate is horizontally placed, then the split disc 622 can be manually rotated to control and view the positions of the detection part and the comparison part of the bipolar plate, the bipolar plate is not required to be taken down, watched and clamped and fixed in the process, the operation is simple, the labor intensity of workers is reduced, and the detection efficiency is improved.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a hydrogen fuel cell metal bipolar plate coating corrosion resistance detection device, includes detection case (1), its characterized in that, internally mounted of detection case (1) has cut apart ring plate (5), the inboard of detection case (1) has been seted up and has been located the flowing back chamber (3) of cutting apart ring plate (5) top, the inboard of detection case (1) is provided with and is located the detection chamber (4) of cutting apart ring plate (5) below, controller (2) are installed to the one end of detection case (1), both sides of detection case (1) are fixed with layer board (601), flexible cylinder (602) are installed at the top of layer board (601), the output of flexible cylinder (602) is connected with link (604), and the one end of link (604) extends to the inboard of flowing back chamber (3), one end bottom of link (604) is fixed with and is located the movable plate (641) of cutting apart ring plate (5) top, one side of link (604) is provided with mount pad (613) of being located movable plate (641) top, mount pad (605) is installed on the top of motor (605) and is provided with the layer board (641) that links to each other, the output end of the motor (605) is provided with a buckling rotating piece connected with the plate rotator;
the connecting mechanism comprises a guide block (603) fixed on one side of a supporting plate (601), a shifting pin (614) is slidably connected to the outer side of the guide block (603), a reset spring (612) connected with the top of the shifting pin (606) is arranged on the inner side of the guide block (603), an L-shaped guide rail (610) positioned on one side of a telescopic cylinder (602) far away from a detection box (1) is arranged on one side of the guide block (603), a transverse movable block (611) penetrating to the other side of the movable block (606) is inserted on one side of the movable block (606), a shifting pin (614) is fixedly connected to the inner side of the L-shaped guide rail (610) in a sliding manner, one side of the transverse movable block (611) far away from the shifting pin (614) is rotatably connected with a shifting plate (608) through a rotating shaft, a second contact piece (615) is arranged at the bottom of the shifting plate (608), a torsion clamp (604) connected with the movable block (608) on one side of the movable block (606), a torsion clamp (616) is connected with the outer side of the movable block (608) far away from the rotating shaft (616) on one side of the fixed block (617), the bottom of the side connecting frame (607) is provided with a first contact piece (609), and the first contact piece (609) is positioned below the positioning plate (608);
the second contact (615) is in telecommunication connection with the motor (605) through a wire, and the first contact (609) is in electric connection with an external power supply through a wire;
the plate rotator comprises a setting groove (640) formed in the inner side of a movable plate (641), the setting groove (640) penetrates through the top of the movable plate (641) to the bottom of the movable plate (641), the inner side of the setting groove (640) is rotationally connected with a positioning ring (621) through a rotating shaft, the inner side of the positioning ring (621) is rotationally connected with a dividing plate (622) through a bearing, the top of the dividing plate (622) is provided with a dividing groove (631) penetrating through to the bottom of the positioning ring (621), the top of the positioning ring (621) is fixedly provided with a support rod connecting plate (636) positioned on one side of the dividing groove (631), one side of the support rod connecting plate (636) is provided with a bidirectional screw rod (627) penetrating through the other side of the support rod connecting plate (636), the top of the dividing plate (622) is provided with a limiting chute (629) positioned below the bidirectional screw rod (627), the inner side of the limiting chute (629) is slidingly connected with a clamping plate (630), the clamping plate (630) is sleeved on the outer side of the bidirectional screw rod (627), and the support rod connecting plate (636) is provided with a limiting unit for limiting the bidirectional screw rod (627);
two clamping plates (630) are arranged in number, the two clamping plates (630) are symmetrically arranged along the vertical central axis of the bidirectional screw rod (627), and threaded holes matched with the outer side of the bidirectional screw rod (627) are formed in one side of each clamping plate (630);
the rotation-resisting unit comprises a clamping connecting plate (632) fixed at the top of a supporting rod connecting plate (636), a pull-guiding frame (628) is connected to the outer side of the clamping connecting plate (632) in a sliding mode, a rotation-resisting spring (633) connected with the top of the clamping connecting plate (632) is arranged on the inner side of the pull-guiding frame (628), an arc-shaped anti-skid plate (635) is arranged at the bottom of the pull-guiding frame (628), and an anti-skid rotary disc (637) located below the arc-shaped anti-skid plate (635) is arranged on the outer side of the bidirectional screw rod (627);
the utility model provides a buckle is changeed piece including detaining position commentaries on classics piece (618) of being connected in motor (605) output, one side of detaining position commentaries on classics piece (618) is fixed with and runs through to support locating lever (626) of detaining position commentaries on classics piece (618) opposite side, the both ends of supporting locating lever (626) are fixed with location clamping column (625), clamping hole (639) have been seted up in the outside of locating clamping column (625), the outside of supporting locating lever (626) is connected with side locating plate (619) through the axle rotation, and side locating plate (619) are located between detaining position commentaries on classics piece (618) and location clamping column (625), clamping block (624) have been cup jointed in the outside of side locating plate (619), the bottom of side locating plate (619) is provided with buckling position spring (634) that link with clamping block (624) inboard, the top of clamping block (624) is provided with shifting frame (620) in the outside, and one side of shifting frame (620) is fixed with location clamping column (625) clamping plate (638) top's location clamping plate (638), and clamping groove (623) are located inside clamping groove (623) is located inside (623) and is located the inside clamping groove (623) of cutting apart (623).
2. The hydrogen fuel cell metal bipolar plate coating corrosion resistance detection device according to claim 1, wherein two clamping holes (639) are provided, the two clamping holes (639) are distributed in ninety degrees along the center of a fixed clamping column (625), and the diameters of the positioning clamping pins (638) and the clamping holes (639) are equal.
3. The hydrogen fuel cell metal bipolar plate coating corrosion resistance detection device according to claim 1, wherein a cavity which is matched with a buckling spring (634) is arranged on the inner side of the clamping block (624), and a through hole which is matched with the bottom of the side fixing plate (619) is arranged on the top of the clamping block (624).
4. A method for detecting corrosion resistance of a metal bipolar plate coating of a hydrogen fuel cell, which is characterized by adopting the device for detecting corrosion resistance of the metal bipolar plate coating of the hydrogen fuel cell according to any one of claims 1-3, and comprising the following steps:
s1: when the corrosion resistance of the surface coating of the metal bipolar plate is detected, firstly pouring the prepared corrosion liquid into a detection cavity (4);
s2: the bipolar plate to be tested is arranged on the inner side of the movable plate (641) through a plate rotator, then the connection between the motor (605) and the plate rotator is realized through the operation of a buckling rotating piece, and the contraction of the telescopic cylinder (602) is controlled through the controller (2) so as to enable the bipolar plate to be immersed into corrosive liquid in the detection cavity (4);
s3: after the bipolar plate is soaked for a period of time, the telescopic cylinder (602) is stretched by the controller (2) so as to enable the bipolar plate to move out of the detection cavity (4), in the process, the motor (605) is electrified by the operation of the connecting mechanism, and the motor (605) is operated at the moment;
s4: when the motor (605) operates, the corrosive liquid attached to the surface of the bipolar plate is separated under the action of centrifugal force through the cooperation of the plate rotator and the buckling rotating piece;
s5: when the telescopic cylinder (602) is fully extended, the connecting mechanism is restored, the motor (605) stops operating, and then the bipolar plate is detected and watched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310889842.6A CN116609256B (en) | 2023-07-20 | 2023-07-20 | Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310889842.6A CN116609256B (en) | 2023-07-20 | 2023-07-20 | Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116609256A CN116609256A (en) | 2023-08-18 |
| CN116609256B true CN116609256B (en) | 2023-09-19 |
Family
ID=87683967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310889842.6A Active CN116609256B (en) | 2023-07-20 | 2023-07-20 | Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116609256B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790215A (en) * | 2018-07-12 | 2018-11-13 | 王燕 | A kind of cutter knife laying machine for automatic fibers |
| CN112303939A (en) * | 2020-11-23 | 2021-02-02 | 叶温柔 | Automatic cleaning equipment for heat collecting pipe of solar water heater |
| CN213749540U (en) * | 2020-12-22 | 2021-07-20 | 保山中浩钢构有限公司 | Hydraulic metal structure corrosion resistance detection device |
| CN115670536A (en) * | 2023-01-03 | 2023-02-03 | 潍坊医学院附属医院 | Tumor detection sampling device and method |
| CN115773958A (en) * | 2023-02-03 | 2023-03-10 | 保定市恒信达电气有限公司 | Comprehensive cable detection device |
| CN115791836A (en) * | 2023-01-12 | 2023-03-14 | 广州讯中信息科技有限公司 | Display screen detection device and display screen detection method |
| CN115963475A (en) * | 2023-03-16 | 2023-04-14 | 山东穆柯传感器有限公司 | Laser radar device for workshop safety monitoring and working method |
| CN218965182U (en) * | 2022-11-23 | 2023-05-05 | 河北宏泰专用汽车有限公司 | Inner partition plate clamping mechanism |
| CN116076541A (en) * | 2023-03-27 | 2023-05-09 | 吴丽华 | Cake apparatus for producing for food processing |
| CN116242767A (en) * | 2023-02-10 | 2023-06-09 | 哈尔滨理工大学 | Corrosion resistance testing device for machine tool window |
-
2023
- 2023-07-20 CN CN202310889842.6A patent/CN116609256B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790215A (en) * | 2018-07-12 | 2018-11-13 | 王燕 | A kind of cutter knife laying machine for automatic fibers |
| CN112303939A (en) * | 2020-11-23 | 2021-02-02 | 叶温柔 | Automatic cleaning equipment for heat collecting pipe of solar water heater |
| CN213749540U (en) * | 2020-12-22 | 2021-07-20 | 保山中浩钢构有限公司 | Hydraulic metal structure corrosion resistance detection device |
| CN218965182U (en) * | 2022-11-23 | 2023-05-05 | 河北宏泰专用汽车有限公司 | Inner partition plate clamping mechanism |
| CN115670536A (en) * | 2023-01-03 | 2023-02-03 | 潍坊医学院附属医院 | Tumor detection sampling device and method |
| CN115791836A (en) * | 2023-01-12 | 2023-03-14 | 广州讯中信息科技有限公司 | Display screen detection device and display screen detection method |
| CN115773958A (en) * | 2023-02-03 | 2023-03-10 | 保定市恒信达电气有限公司 | Comprehensive cable detection device |
| CN116242767A (en) * | 2023-02-10 | 2023-06-09 | 哈尔滨理工大学 | Corrosion resistance testing device for machine tool window |
| CN115963475A (en) * | 2023-03-16 | 2023-04-14 | 山东穆柯传感器有限公司 | Laser radar device for workshop safety monitoring and working method |
| CN116076541A (en) * | 2023-03-27 | 2023-05-09 | 吴丽华 | Cake apparatus for producing for food processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116609256A (en) | 2023-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116609256B (en) | Device and method for detecting corrosion resistance of metal bipolar plate coating of hydrogen fuel cell | |
| CN219104398U (en) | Soil sampling device | |
| CN216085252U (en) | Semi-automatic battery liquid filling machine convenient to height adjustment | |
| CN210092215U (en) | Adjustable battery liquid injection clamp | |
| CN114487017A (en) | Detection device for detecting environmental water quality | |
| CN215179417U (en) | Diaphragm wettability testing device | |
| CN212989581U (en) | Positioning device of PCB testing machine without positioning holes | |
| CN215493986U (en) | Relay module testing tool | |
| CN113075094A (en) | Diaphragm wettability testing device and testing method thereof | |
| CN108120609A (en) | New energy automobile performance detection device | |
| CN221463525U (en) | Laser level meter fixing structure | |
| CN209810224U (en) | Novel iron stand platform based on chemistry experiments are used | |
| CN209860762U (en) | Winding device for motor maintenance | |
| CN218298465U (en) | New energy battery polarity detection device | |
| CN202119457U (en) | Suspended dripping device | |
| CN215340131U (en) | A on-spot observation frame for electric wire netting line loss | |
| CN212209211U (en) | A reel rack for building transformer production | |
| CN213780340U (en) | Wire rod conduction test fixture | |
| CN217776180U (en) | Micro-electromechanical attenuator assembling device | |
| CN218917686U (en) | Automatic water level rainfall monitoring station with auxiliary installation structure | |
| CN221883260U (en) | A support bracket for battery test | |
| CN215641069U (en) | Novel digital display oxygen index tester | |
| CN214310059U (en) | Aging detection table and test system | |
| CN212419957U (en) | Tapping device for nut processing | |
| CN216504865U (en) | Novel guide rail rocker arm automatic assembly machine for stainless steel nickel-plated wire drawing |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |