CN210803578U

CN210803578U - Device for measuring internal resistance and thickness of polar plate

Info

Publication number: CN210803578U
Application number: CN201920811244.6U
Authority: CN
Inventors: 洪欢昌; 张石山; 师东旭; 刘军; 王志军
Original assignee: Huizhou Lvbao Technology Co ltd
Current assignee: Huizhou Lvbao Technology Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-06-19
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a measure internal resistance and thickness's of polar plate device, including the board, set up the base on the board, a plurality of backup pads of vertical setting on the base, set up the fixed plate in the backup pad, set up the subassembly that pushes down on the fixed plate, the last measuring part that is used for testing the polar plate internal resistance that is connected with the subassembly that pushes down sets up the lower measuring part that corresponds with last measuring part that corresponds at base and last measuring part correspond position department, still is provided with the displacement sensor who is used for measuring the upper measurement position displacement distance in the bottom surface department of fixed plate. The utility model discloses set up last measuring part and lower measuring part, set up the pressure sensor who detects the pressure degree and detect the displacement sensor who pushes down the displacement simultaneously, go up measuring part can with lower measuring part cooperation extrusion polar plate under the drive of pushing down the subassembly to can measure the internal resistance change of polar plate under different thickness, different pressure, make the clear internal resistance variable property who knows the polar plate of staff, improved work efficiency, guaranteed measuring accuracy.

Description

Device for measuring internal resistance and thickness of polar plate

Technical Field

The utility model relates to a fuel cell production and processing technology field, concretely relates to measure internal resistance and thickness of polar plate's device.

Background

A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. The fuel cell is high in efficiency because the gibbs free energy in the chemical energy of the fuel is partially converted into electric energy through electrochemical reaction without being limited by the carnot cycle effect. Common fuel cells include hydrogen-oxygen fuel cells, solid oxide fuel cells, methanol fuel cells, and the like. In recent years, environmental protection energy such as hydrogen energy has attracted attention due to the fact that the traditional fossil fuel is less and less under the condition of large-scale development and utilization of human beings, and an important direction of the hydrogen-oxygen fuel cell, which is more than the environmental protection castle, in the fuel cell is more and more emphasized by people as the hydrogen energy. The hydrogen-oxygen fuel cell has a plurality of components, such as a plate, a housing, a proton exchange membrane, a catalyst layer, and the like. In the production and processing process of the polar plate, the internal resistance of the polar plate needs to be measured, and when the internal resistance of the polar plate is measured, the internal resistance of the polar plate under different thicknesses needs to be measured.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a measure internal resistance and thickness of polar plate device.

The utility model discloses a following scheme realizes:

a device for measuring the internal resistance and the thickness of a polar plate comprises a machine table, a base arranged on the machine table, a plurality of supporting plates vertically arranged on the base, a fixing plate arranged on the supporting plates, a pressing assembly arranged on the fixing plate, an upper measuring part connected with the pressing assembly and used for testing the internal resistance of the polar plate, a lower measuring part arranged at the position, corresponding to the upper measuring part, of the base, and a displacement sensor used for measuring the displacement distance of the upper measuring part is further arranged at the bottom surface of the fixing plate; the lower pressing assembly comprises a lower pressing plate arranged below the fixing plate and used for connecting the upper measuring part, and a lower pressing driving piece arranged on the fixing plate and used for driving the lower pressing plate to move along the vertical direction, wherein a pressure sensor used for detecting pressure is arranged on the lower pressing plate, and the lower pressing driving piece is connected with the pressure sensor through a floating joint.

Further, a polar plate placing platform for placing a polar plate is arranged on the machine table, and a through hole for exposing the lower measuring part is formed in the position, corresponding to the lower measuring part, of the polar plate placing platform.

Furthermore, a plurality of guide posts are arranged between the fixing plate and the base, and the lower pressing plate is movably connected with the guide posts.

Furthermore, the lower pressing plate is connected with the guide pillar through a bearing.

Furthermore, an insulating layer is sleeved on the periphery of the guide post.

Furthermore, the machine table is provided with an internal resistance measuring instrument, and the upper measuring part and the lower measuring part are electrically connected with the internal resistance measuring instrument; and the fixed plate is also provided with a display screen which is in signal connection with the internal resistance measuring instrument.

Furthermore, the upper measuring part and the lower pressing plate, and the lower measuring part and the base are fixedly connected through ceramic insulating blocks.

Furthermore, the displacement sensor is connected with the bottom surface of the fixing plate through a support, and an induction part matched with the displacement sensor is arranged on the upper measuring part.

Further, the upper measuring part and the lower measuring part are both copper cylinders.

Further, the pressing driving piece is an electric cylinder.

Contrast prior art, the utility model discloses following beneficial effect has:

the utility model discloses set up upper measuring portion and lower measuring portion, set up the pressure sensor who detects the pressure degree and detect the displacement sensor who pushes down the displacement simultaneously, upper measuring portion can with lower measuring portion cooperation extrusion polar plate under the drive of pushing down the subassembly, can change the thickness of polar plate when measuring the polar plate internal resistance to can measure the internal resistance change of polar plate under different thickness, different pressure, make the clear internal resistance variation characteristic who knows the polar plate of staff, improve work efficiency, guarantee measuring accuracy.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the device for measuring internal resistance and thickness of a polar plate provided by the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is another schematic view of the present embodiment, in which the structures of the machine, the internal resistance tester, and the like are hidden.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

Referring to fig. 1 to 3, the utility model provides a pair of measure internal resistance and thickness of polar plate device, including board 1, set up base 11 on the board, vertical a plurality of backup pads 12 of setting on the base, set up fixed plate 13 in the backup pad, set up the subassembly 2 that pushes down on the fixed plate, the last measuring part 3 that is used for testing the polar plate internal resistance that is connected with the subassembly that pushes down, the lower measuring part 4 that corresponds with last measuring part that sets up in base and last measuring part corresponding position department still is provided with the displacement sensor 14 that is used for measuring the upper measuring part displacement distance in the bottom surface department of fixed plate 13. In this embodiment, the number of the supporting plates is two, and the upper measuring portion 3 and the lower measuring portion 4 are both copper cylinders.

The pressing assembly 2 comprises a pressing plate 21 arranged below the fixing plate and used for connecting the upper measuring part, and a pressing driving piece 22 arranged on the fixing plate and used for driving the pressing plate to move along the vertical direction, wherein a pressure sensor 23 used for detecting pressure is arranged on the pressing plate, and the pressing driving piece is connected with the pressure sensor through a floating joint 24. In this embodiment, the push-down driving piece is an electric cylinder, the output end of the electric cylinder extends to the lower part of the fixed plate, and the floating joint is connected with the output end of the electric cylinder.

The machine table 1 is provided with a polar plate placing platform 5 for placing a polar plate, a through hole 51 for exposing the lower measuring part 4 is arranged at the position of the polar plate placing platform corresponding to the lower measuring part, and the upper end surface of the lower measuring part is slightly higher than the upper end surface of the polar plate placing platform. The polar plate placing platform is specifically connected with the machine table through the supporting column, and the whole polar plate placing table is located above the base.

A plurality of guide posts 15 are arranged between the fixed plate 13 and the base 11, and the lower pressing plate 21 is movably connected with the guide posts. The lower pressing plate 21 is connected with the guide post 15 through a bearing 25. The outer periphery of the guide post 15 is sleeved with an insulating layer 16 (the insulating layer is specifically wrapped on the lower half part of the guide post). The displacement sensor 14 is connected with the bottom surface of the fixing plate through a bracket 17, and a sensing piece 31 matched with the displacement sensor is arranged on the upper measuring part, is an L-shaped fixed piece and is fixed on the side wall of the upper measuring part through a screw. In this embodiment, 2 guide posts are provided, and 2 bearings are correspondingly provided.

The machine table 1 is provided with an internal resistance measuring instrument 6, and the upper measuring part 3 and the lower measuring part 4 are electrically connected with the internal resistance measuring instrument. A display screen 8 is also disposed on the fixed plate 13, and the display screen is in signal connection with the internal resistance measuring instrument, such as a video signal line (not shown).

The upper measuring part 3 and the lower pressure plate 21, and the lower measuring part 4 and the base 11 are fixedly connected through the ceramic insulating block 7.

The utility model discloses when concrete implementation, internal resistance tester, displacement sensor, pressure sensor and display all can be connected to on the computer. When the polar plate placing platform works, a worker puts the polar plate to be measured on the polar plate placing platform, and the polar plate is positioned between the upper measuring part and the lower measuring part (the polar plate is in contact with the lower measuring part at the moment). And then, the driving piece is pressed downwards to drive the lower pressing plate to move downwards until the upper measuring head contacts the polar plate, a loop is formed after the upper measuring part and the lower measuring part both contact the polar plate, the internal resistance tester starts to test and record the internal resistance of the polar plate, and the computer simultaneously records the data of the pressure sensor and the displacement sensor. Then the electric cylinder continues to drive the lower pressing plate to move downwards, the upper testing part extrudes the pole plate to change the pole plate occurrence (the thickness becomes thinner, the thickness of the pole plate at the moment can be calculated according to the displacement of the upper measuring head), the data of the pressure sensor, the displacement sensor and the internal resistance tester can be recorded at preset intervals for a certain time, such as 0.1s, 0.5s or 1s, and the computer summarizes the data to generate a chart, so that the internal resistance change of the pole plate under different pressures and different thicknesses can be clearly shown.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.

Claims

1. The device for measuring the internal resistance and the thickness of the polar plate is characterized by comprising a machine table (1), a base (11) arranged on the machine table, a plurality of supporting plates (12) vertically arranged on the base, a fixing plate (13) arranged on the supporting plates, a pressing component (2) arranged on the fixing plate, an upper measuring part (3) connected with the pressing component and used for testing the internal resistance of the polar plate, a lower measuring part (4) arranged at the position, corresponding to the upper measuring part, of the base, and a displacement sensor (14) used for measuring the displacement distance of the upper measuring part is further arranged at the bottom surface of the fixing plate (13); the lower pressing assembly (2) comprises a lower pressing plate (21) arranged below the fixing plate and used for connecting the upper measuring part, a lower pressing driving piece (22) arranged on the fixing plate and used for driving the lower pressing plate to move along the vertical direction, a pressure sensor (23) used for detecting pressure is arranged on the lower pressing plate, and the lower pressing driving piece is connected with the pressure sensor through a floating joint (24).

2. The device for measuring the internal resistance and the thickness of the polar plate according to claim 1, wherein a polar plate placing platform (5) for placing the polar plate is arranged on the machine table (1), and a through hole (51) for exposing the lower measuring part (4) is arranged at the position of the polar plate placing platform corresponding to the lower measuring part.

3. The apparatus for measuring the internal resistance and thickness of a plate according to claim 1, wherein a plurality of guide posts (15) are disposed between the fixed plate (13) and the base (11), and the lower pressing plate (21) is movably connected with the guide posts.

4. The apparatus for measuring the internal resistance and thickness of a plate according to claim 3, wherein the lower press plate (21) and the guide pillar (15) are connected by a bearing (25).

5. The device for measuring the internal resistance and the thickness of the polar plate according to claim 4, characterized in that the outer circumference of the guide pillar (15) is sleeved with an insulating layer (16).

6. The device for measuring the internal resistance and the thickness of the pole plate according to claim 1, wherein the machine table (1) is provided with an internal resistance measuring instrument (6), and the upper measuring part (3) and the lower measuring part (4) are electrically connected with the internal resistance measuring instrument; and the fixed plate (13) is also provided with a display screen (8), and the display screen is in signal connection with the internal resistance measuring instrument.

7. The device for measuring the internal resistance and the thickness of the pole plate according to claim 1, wherein the upper measuring part (3) and the lower pressing plate (21) and the lower measuring part (4) and the base (11) are fixedly connected through a ceramic insulating block (7).

8. The apparatus for measuring internal resistance and thickness of a plate according to claim 1, wherein the displacement sensor (14) is connected to the bottom surface of the fixed plate through a bracket (17), and a sensing member (31) matched with the displacement sensor is provided on the upper measuring portion.

9. The apparatus for measuring the internal resistance and thickness of a plate according to claim 1, wherein the upper measuring part (3) and the lower measuring part (4) are both copper cylinders.

10. The apparatus for measuring internal resistance and thickness of a plate according to claim 1, wherein the press-down driving member (22) is an electric cylinder.