CN218647061U - Device for measuring resistance distribution of sheet stacking material - Google Patents

Device for measuring resistance distribution of sheet stacking material Download PDF

Info

Publication number
CN218647061U
CN218647061U CN202221991958.8U CN202221991958U CN218647061U CN 218647061 U CN218647061 U CN 218647061U CN 202221991958 U CN202221991958 U CN 202221991958U CN 218647061 U CN218647061 U CN 218647061U
Authority
CN
China
Prior art keywords
shaped frame
sliding
block
ball screw
supporting block
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
Application number
CN202221991958.8U
Other languages
Chinese (zh)
Inventor
杨恒
曹加鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Center Power Tech Co Ltd
Shenzhen Hydrogen Fuel Cell Technology Co Ltd
Original Assignee
Shenzhen Center Power Tech Co Ltd
Shenzhen Hydrogen Fuel Cell Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Center Power Tech Co Ltd, Shenzhen Hydrogen Fuel Cell Technology Co Ltd filed Critical Shenzhen Center Power Tech Co Ltd
Priority to CN202221991958.8U priority Critical patent/CN218647061U/en
Application granted granted Critical
Publication of CN218647061U publication Critical patent/CN218647061U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

The application discloses a device for measuring resistance distribution of sheet stacking materials, which comprises a bottom plate, a supporting block, a U-shaped sliding block assembly, a micro probe and a ball screw assembly, wherein the U-shaped sliding block assembly is arranged on the bottom plate; the supporting blocks comprise a first supporting block and a second supporting block which are arranged on the bottom plate in parallel; one end of the U-shaped sliding block component is connected with the first supporting block in a sliding mode, and the other end of the U-shaped sliding block component is connected with the second supporting block in a sliding mode; the ball screw assembly is arranged on the bottom plate, is arranged between the first supporting block and the second supporting block and is abutted against the U-shaped sliding block assembly; the micro probe comprises a first micro probe and a second micro probe, the first micro probe is arranged at the top of the U-shaped sliding block assembly, and the second micro probe is arranged at the bottom of the U-shaped sliding block assembly. The method can measure the resistance distribution of each part of the galvanic pile when the galvanic pile reacts, and provides data support for the research of the galvanic pile.

Description

Device for measuring resistance distribution of sheet stacking material
Technical Field
The utility model relates to a measure technical field, especially relate to a measure device that slice piled up material resistance distribution.
Background
A fuel cell is generally formed by stacking several tens to several hundreds of bipolar plates and a membrane electrode assembly. A membrane electrode is clamped between two bipolar plates to form a single cell, dozens or even hundreds of single cells are connected in series to form a complete electric pile; the greater the number of stacked cells, the greater the output power of the stack. However, the fuel cell releases a large amount of heat during the reaction process, and the more the number of the electric pile is, the more the heat is generated during the operation, and further the heat is accumulated in the electric pile to increase the temperature of the electric pile; when the temperature of the electric pile is too high, the reaction rate of the electric pile is influenced, and the performance of the electric pile is influenced. The small-sized temperature sensor cannot be inserted into the pole plate to measure the temperature, and if the temperature sensor is inserted into the pole plate, the tightness of the electric pile can be affected, and the performance of the electric pile is further affected. Therefore, in the prior art, it is difficult to measure the temperature distribution of each part of the electric pile through the temperature sensor during the electric pile reaction.
SUMMERY OF THE UTILITY MODEL
Based on this, the embodiment of the utility model provides a measure device that material resistance distribution was piled up to slice aims at solving among the prior art and hardly carries out the measuring problem of each partial temperature distribution of galvanic pile through temperature sensor during galvanic pile reaction. The device can measure the resistance distribution of each part of the galvanic pile when the galvanic pile reacts, and the resistance distribution of each part of the galvanic pile measured by the device can be used for fitting and calculating the temperature distribution condition of each part of the galvanic pile.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a device for measuring the resistance distribution of a sheet stacking material is suitable for measuring the resistance of the sheet stacking material and comprises a bottom plate, a supporting block, a U-shaped sliding block component, a micro probe and a ball screw component;
the supporting blocks comprise a first supporting block and a second supporting block which are arranged on the bottom plate in parallel; one end of the U-shaped sliding block component is connected with the first supporting block in a sliding mode, and the other end of the U-shaped sliding block component is connected with the second supporting block in a sliding mode;
the ball screw assembly is arranged on the bottom plate, is arranged between the first supporting block and the second supporting block and is abutted against the U-shaped sliding block assembly;
the micro probe comprises a first micro probe and a second micro probe, the first micro probe is arranged at the top of the U-shaped sliding block assembly, and the second micro probe is arranged at the bottom of the U-shaped sliding block assembly.
As a preferred embodiment, the U-shaped sliding block assembly comprises a U-shaped frame, a first cross rod connected to the top end of the U-shaped frame in a sliding manner, and a lower sliding block arranged at the bottom of the U-shaped frame; the lower sliding block comprises a first lower sliding block and a second lower sliding block which are symmetrically arranged; one end of the bottom of the U-shaped frame is connected with the first supporting block in a sliding mode, the other end of the bottom of the U-shaped frame is connected with the second supporting block in a sliding mode, and the bottom of the U-shaped frame is fixedly connected with the ball screw assembly.
In a preferred embodiment, two ends of the U-shaped frame are symmetrically provided with first sliding grooves, and the first cross bar is slidably connected in the first sliding grooves.
In a preferred embodiment, a first connecting block is disposed on a side of the first cross bar close to the ball screw assembly, and the first micro probe is disposed on a side of the first connecting block close to the ball screw assembly.
As a preferred embodiment, the first lower sliding block and the second lower sliding block are symmetrically provided with second sliding grooves; the second micro probe is arranged on the side surface, close to the first connecting block, of the second connecting block; and two ends of the second connecting block are slidably connected in the second sliding groove.
In a preferred embodiment, the first and second microprobes are symmetrically disposed; the first and second microprobes each include a plurality of rows of microprobes arranged in parallel.
As a preferred embodiment, a first hollow is arranged on the first supporting block, and a first U-shaped frame sliding rail is arranged in the first hollow; a second hollow is arranged on the second supporting block, and a second U-shaped frame sliding rail is arranged in the second hollow; the first U-shaped frame slide rail and the second U-shaped frame slide rail are symmetrically arranged; one end of the bottom of the U-shaped frame is connected to the first U-shaped frame sliding rail in a sliding mode, and the other end of the bottom of the U-shaped frame is connected to the second U-shaped frame sliding rail in a sliding mode.
In a preferred embodiment, one end of the sheet stacking material is disposed at the top end of the first support block, and the other end is disposed at the top end of the second support block; and a gap matched with the sheet stacking material is arranged in the U-shaped frame.
As a preferred embodiment, the ball screw assembly comprises a base, a ball screw and a connecting plate, wherein the base is arranged on the bottom plate; the base is provided with a groove, and the ball screw is arranged in the groove; two sides of the base are provided with base sliding rails, and the connecting plate is connected to the base sliding rails in a sliding manner; the connecting plate is connected with the ball screw in a sliding manner; the side face, far away from the base, of the connecting plate is fixedly connected with the U-shaped frame.
In a preferred embodiment, the ball screw is a precision ball screw; the sheet stacking material is preferably a fuel cell stack.
The device can measure the resistance distribution of each part of the galvanic pile during the reaction of the galvanic pile, and the resistance distribution of each part of the galvanic pile measured by the device can be used for fitting and calculating the temperature distribution condition of each part of the galvanic pile, thereby providing data support and guidance for the design research of the galvanic pile.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus for measuring resistance distribution of a sheet stack material according to an embodiment of the present invention;
FIG. 2 is a schematic view of the apparatus for measuring the electrical resistance distribution of a sheet stack material of FIG. 1 with the sheet stack material removed;
fig. 3 is a schematic structural view of the ball screw assembly of fig. 1.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the prior art, a single pole plate of a galvanic pile is very thin and is mostly more than 1mm, and a small temperature sensor cannot be inserted into the pole plate to measure the temperature; and if a temperature sensor is inserted into the pole plate, the mechanical strength of the pole plate and the sealing performance of the electric pile can be influenced, and the performance of the electric pile is further influenced. Therefore, in the prior art, the temperature distribution of each part of the electric pile is difficult to measure by a traditional measuring method such as a temperature sensor during the electric pile reaction. In order to solve the technical problem, the utility model provides a measure device that slice piled up material resistance distribution.
As shown in fig. 1 to fig. 3, an apparatus for measuring the resistance distribution of a sheet stacking material according to an embodiment of the present invention is suitable for measuring the resistance of a sheet stacking material 100, and includes a bottom plate 10, a supporting block 20, a U-shaped slider assembly 30, a micro probe 40, and a ball screw assembly 50;
the supporting blocks 20 comprise a first supporting block 21 and a second supporting block 22 which are arranged on the bottom plate 10 in parallel; one end of the U-shaped slider assembly 30 is slidably connected to the first support block 21, and the other end is slidably connected to the second support block 22;
the ball screw assembly 50 is arranged on the bottom plate 10, the ball screw assembly 50 is arranged between the first supporting block 21 and the second supporting block 22, and the ball screw assembly 50 is abutted against the U-shaped slider assembly 30;
the micro-probe 40 includes a first micro-probe 41 and a second micro-probe 42, the first micro-probe 41 is disposed on the top of the U-shaped slider assembly 30, and the second micro-probe 42 is disposed on the bottom of the U-shaped slider assembly 30.
In a preferred embodiment, the U-shaped slider assembly 30 comprises a U-shaped frame 31, a first cross bar 32 slidably connected to the top end of the U-shaped frame 31, and a lower slider 33 disposed at the bottom of the U-shaped frame 31; the lower sliding block 33 comprises a first lower sliding block 331 and a second lower sliding block 332 which are symmetrically arranged; one end of the bottom of the U-shaped frame 31 is slidably connected to the first support block 21, the other end is slidably connected to the second support block 22, and the bottom of the U-shaped frame 31 is fixedly connected to the ball screw assembly 50.
By slidably connecting the U-shaped frame 31 with the supporting block 20, the supporting block 20 can be adjusted and arranged according to the length of the sheet stacking material 100 (such as a galvanic pile) to be suitable for the measurement of the sheet stacking materials 100 with different lengths. Meanwhile, the sheet stacking material 100 is supported by the support block 20 so that the measurement area of the sheet stacking material 100 is overhead, so as to meet the requirement that the first micro-probe 41 and the second micro-probe 42 can be vertically inserted into the sheet stacking material 100 from the top-bottom direction, respectively, to perform resistance measurement. The supporting block 20 can ensure that the device has higher freedom degree of placement, and is convenient to install in a limited space, especially on a test board with various line pipelines.
In a preferred embodiment, the U-shaped frame 31 has first sliding grooves 311 symmetrically formed at both ends thereof, and the first cross bar 32 is slidably connected to the first sliding grooves 311. The first microprobe 41 is allowed to vertically move and be fixed in the up-down direction of the sheet stacking material 100 by the first chute 311.
In a preferred embodiment, a first connecting block 34 is disposed on a side of the first cross bar 32 close to the ball screw assembly 50, and the first micro probe 41 is disposed on a side of the first connecting block 34 close to the ball screw assembly 50.
In a preferred embodiment, the first lower slider 331 and the second lower slider 332 are symmetrically provided with second sliding grooves 333; the second microprobe 42 is arranged on the side surface of the second connection block 35 close to the first connection block 34; both ends of the second connecting block 35 are slidably connected to the second sliding groove 333. The movement and fixation of the second microprobe 42 in the vertical direction can be achieved by the first and second lower sliders 331 and 332.
In a preferred embodiment, the first microprobe 41 and the second microprobe 42 are symmetrically arranged; the first microprobe 41 and the second microprobe 42 each comprise a plurality of rows of microprobes arranged in parallel. Through setting up the miniature probe of multirow, can once only measure the resistance distribution value of the polylith laminar material that the material 100 was piled up to the slice, effectively reduce measurement load, improve measurement of efficiency, labour saving and time saving. Specifically, in the embodiment of the present application, each of the first micro probe 41 and the second micro probe 42 includes three rows of micro probes arranged in parallel, so that the resistances of three plates can be measured simultaneously by three rows of the first micro probe 41 and three rows of the second micro probe 42 arranged in parallel. In other embodiments, four, five or even more rows of microprobes may be provided according to actual use requirements.
As a preferred embodiment, a first hollow 211 is disposed on the first supporting block 21, and a first U-shaped frame sliding rail 212 is disposed in the first hollow 211; a second hollow 221 is arranged on the second supporting block 22, and a second U-shaped frame sliding rail 222 is arranged in the second hollow 221; the first U-shaped frame slide rail 212 and the second U-shaped frame slide rail 222 are symmetrically arranged; one end of the bottom of the U-shaped frame 31 is slidably connected to the first U-shaped frame slide rail 212, and the other end is slidably connected to the second U-shaped frame slide rail 222.
As a preferred embodiment, one end of the sheet stacking material 100 is disposed at the top end of the first supporting block 21, and the other end is disposed at the top end of the second supporting block 22; the U-shaped frame 31 has a gap therein, which is adapted to the stacked sheet material 100.
In a preferred embodiment, the ball screw assembly 50 includes a base 51, a ball screw 52 and a connecting plate 53, wherein the base 51 is disposed on the base plate 10; a groove (not marked in the figure) is arranged on the base 51, and the ball screw 52 is arranged in the groove; two sides of the base 51 are provided with base sliding rails 511, and the connecting plate 53 is connected to the base sliding rails 511 in a sliding manner; the connecting plate 53 is slidably connected with the ball screw 52; the side surface of the connecting plate 53 far away from the base 51 is fixedly connected with the U-shaped frame 31.
The thickness of the cathode plate and the anode plate of the pile is thinner, and the requirement of probe moving fineness can be met when the resistance between different polar plates is measured through the ball screw assembly, so that the micro probe can be accurately aligned between the gaps of the two polar plates. The U-shaped frame is driven to horizontally move through the rotation of the ball screw, so that the micro probe can be accurately positioned at the position of the two side surfaces of each polar plate, and the micro probe can be used for measuring the resistance of each polar plate of the pile.
In a preferred embodiment, the ball screw 52 is a precision ball screw. The precision of the ball screw 52 is less than the thickness of each sheet of material (e.g., plate) of the sheet stack 100, which ensures that the microprobe moves precisely to the horizontal position of any sheet of material.
In the present embodiment, the sheet stacking material 100 is preferably a fuel cell stack. It will be appreciated that in other embodiments, the sheet stack material 100 may be other sheet stack materials.
When using this application device, need be connected this application device and singlechip earlier, this singlechip is connected with the computer, during the operation: firstly, moving the first cross bar 32 of the U-shaped slide block assembly 30 to the uppermost position of the first sliding slot 311 (so that enough space can be provided for placing the galvanic pile 100), then placing the galvanic pile 100 on the first supporting block 21 and the second supporting block 22, then moving the ball screw 52 in the horizontal direction and the first cross bar 32 and the second connecting block 35 in the vertical direction, so that three rows of probes on the first connecting block 34 are sequentially abutted with one side surface of a first polar plate, one side surface of a second polar plate and one side surface of a third polar plate of the galvanic pile, three rows of probes on the second connecting block 35 are sequentially abutted with the other side surface of the first polar plate, the other side surface of the second polar plate and the other side surface of the third polar plate of the galvanic pile, and then measuring the resistances of the first polar plate, the second polar plate and the third polar plate; the resistance of each plate of the pile is measured in turn according to the method. The measured resistance is transmitted to a computer through a single chip microcomputer, and data reading and processing are carried out through the computer.
The device can well control the movement of the micro probe through the ball screw assembly and the U-shaped sliding block assembly, can measure the resistance distribution of each part of the galvanic pile during the reaction of the galvanic pile, can be used for fitting and calculating the temperature distribution condition of each part of the galvanic pile according to the resistance distribution of each part of the galvanic pile measured by the device, and provides data support and guidance for the design and research of the galvanic pile.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A device for measuring the resistance distribution of a sheet stacking material is characterized by being suitable for measuring the resistance of the sheet stacking material and comprising a bottom plate, a supporting block, a U-shaped sliding block component, a micro probe and a ball screw component;
the supporting blocks comprise a first supporting block and a second supporting block which are arranged on the bottom plate in parallel; one end of the U-shaped sliding block component is connected with the first supporting block in a sliding mode, and the other end of the U-shaped sliding block component is connected with the second supporting block in a sliding mode;
the ball screw assembly is arranged on the bottom plate, is arranged between the first supporting block and the second supporting block and is abutted against the U-shaped sliding block assembly;
the micro probe comprises a first micro probe and a second micro probe, the first micro probe is arranged at the top of the U-shaped sliding block assembly, and the second micro probe is arranged at the bottom of the U-shaped sliding block assembly.
2. The apparatus of claim 1, wherein the U-shaped slider assembly includes a U-shaped frame, a first cross bar slidably coupled to a top end of the U-shaped frame, and a lower slider disposed at a bottom of the U-shaped frame; the lower sliding block comprises a first lower sliding block and a second lower sliding block which are symmetrically arranged; one end of the bottom of the U-shaped frame is connected with the first supporting block in a sliding mode, the other end of the bottom of the U-shaped frame is connected with the second supporting block in a sliding mode, and the bottom of the U-shaped frame is fixedly connected with the ball screw assembly.
3. The apparatus for measuring the electrical resistance distribution of a sheet stack according to claim 2, wherein the U-shaped frame has first sliding grooves symmetrically formed at both ends thereof, and the first cross bar is slidably coupled to the first sliding grooves.
4. The apparatus of claim 3, wherein a first connection block is disposed on a side of the first cross bar adjacent to the ball screw assembly, and the first micro-probe is disposed on a side of the first connection block adjacent to the ball screw assembly.
5. The apparatus for measuring the electrical resistance distribution of a sheet stack material according to claim 4, wherein the first lower slider and the second lower slider are symmetrically provided with second sliding grooves; the second micro probe is arranged on the side surface, close to the first connecting block, of the second connecting block; and two ends of the second connecting block are slidably connected in the second sliding groove.
6. The apparatus for measuring the electrical resistance distribution of a sheet stack material of claim 1, wherein the first and second microprobes are symmetrically disposed; the first and second microprobes each include a plurality of rows of microprobes arranged in parallel.
7. The device for measuring the resistance distribution of the sheet-like stacked material according to claim 2, wherein a first hollow is arranged on the first supporting block, and a first U-shaped frame slide rail is arranged in the first hollow; a second hollow is arranged on the second supporting block, and a second U-shaped frame sliding rail is arranged in the second hollow; the first U-shaped frame slide rail and the second U-shaped frame slide rail are symmetrically arranged; one end of the bottom of the U-shaped frame is connected to the first U-shaped frame sliding rail in a sliding mode, and the other end of the bottom of the U-shaped frame is connected to the second U-shaped frame sliding rail in a sliding mode.
8. The apparatus according to claim 2, wherein one end of the sheet stacking material is disposed at a top end of the first support block, and the other end is disposed at a top end of the second support block; and a gap matched with the sheet stacking material is arranged in the U-shaped frame.
9. The apparatus of claim 2, wherein the ball screw assembly includes a base, a ball screw, and a connecting plate, the base being disposed on the base plate; the base is provided with a groove, and the ball screw is arranged in the groove; two sides of the base are provided with base sliding rails, and the connecting plate is connected to the base sliding rails in a sliding manner; the connecting plate is connected with the ball screw in a sliding manner; the side face, far away from the base, of the connecting plate is fixedly connected with the U-shaped frame.
10. The apparatus for measuring the electrical resistance distribution of a sheet stack material of claim 9, wherein the ball screw is a precision ball screw; the sheet stacking material is a fuel cell stack.
CN202221991958.8U 2022-07-28 2022-07-28 Device for measuring resistance distribution of sheet stacking material Active CN218647061U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221991958.8U CN218647061U (en) 2022-07-28 2022-07-28 Device for measuring resistance distribution of sheet stacking material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221991958.8U CN218647061U (en) 2022-07-28 2022-07-28 Device for measuring resistance distribution of sheet stacking material

Publications (1)

Publication Number Publication Date
CN218647061U true CN218647061U (en) 2023-03-17

Family

ID=85488946

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221991958.8U Active CN218647061U (en) 2022-07-28 2022-07-28 Device for measuring resistance distribution of sheet stacking material

Country Status (1)

Country Link
CN (1) CN218647061U (en)

Similar Documents

Publication Publication Date Title
CN110061269B (en) Online measuring device for current density and gas pressure distribution in fuel cell stack
US8928328B2 (en) Testing device for solid oxide fuel cell
US8720252B2 (en) Quality control apparatus for gas diffusion layer for fuel cells
CN210347775U (en) Testing device for contact resistance of bipolar plate of fuel cell
JP4817962B2 (en) Fuel cell current distribution measuring device, stacked fuel cell current distribution measuring device, and fuel cell current distribution measuring method
CN218647061U (en) Device for measuring resistance distribution of sheet stacking material
CN216411517U (en) Self-fixing quick-assembly inspection device for metal bipolar plate fuel cell stack
CN115372703A (en) Device for measuring resistance distribution of sheet stacking material
CN211627683U (en) Automatic test system for contact resistance curve of bipolar plate of fuel cell
CN210639200U (en) Battery protection board detection device and detection system
CN114440754B (en) Device and method capable of testing expansion amounts of multiple batteries under different pressures
CN207516293U (en) A kind of concretion method measures the measuring device of molecule electric property
CN113075255B (en) Lithium battery diaphragm thermal shrinkage test method and test equipment
CN213749708U (en) Unconfined compression device for measuring resistivity of rock and soil mass
CN2733368Y (en) Precision measurement device for film resistor or chip resistor
CN207556518U (en) Plank roughness subsidiary platform
CN112858940A (en) Battery internal resistance testing positioning frame and battery internal resistance testing clamp
CN115236573B (en) Magnetic field sensor and device for testing two-dimensional piezoelectric vector magnetic characteristics
CN220326175U (en) Support device for piezoelectric film plane multipoint continuous thermal polarization instrument
CN114459403B (en) Rapid detection tool and detection method for fuel cell stack
CN219829799U (en) Metal bipolar plate flatness detection device
CN110608692A (en) Fuel cell polar plate thickness detection system
CN220063912U (en) Potential detection device of pole piece
CN218455669U (en) Resistance testing tool for planar material
CN218122193U (en) Electricity core detection mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant