An electrochemical test fixture for easy observation

Abstract

The utility model discloses an electrochemical test fixture that is easy to observe. The electrochemical test fixture that is easy to observe is designed with an observation port on the front side of a nut shell and a transparent glass tube, so that the reaction state of an internal electrode can be directly observed, thereby improving the intuitiveness and convenience of the test. The electrochemical test fixture that is easy to observe has a simple structure and is easy to assemble and disassemble quickly, and is particularly suitable for a test environment that requires frequent replacement or cleaning of electrodes. The electrochemical test fixture that is easy to observe has the ability to directly observe the reaction state of the electrode, reducing the reliance on indirect electrochemical signals, thereby speeding up data analysis and understanding of the electrochemical reaction mechanism. The precise size adaptation of each component of the electrochemical test fixture that is easy to observe and the application of sealing rings ensure the stability and reliability during the test and improve the accuracy of the test results.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemistry, in particular to an electrochemical test fixture which is convenient for observation. Background Art

[0002] Electrochemical test fixtures are devices used to conduct electrochemical experiments. They are usually used to support electrode materials, connect electrodes, and provide a stable test environment. They are also used to test the electrochemical properties of electrode materials prepared in the laboratory. These fixtures play a key role in electrochemical research because they directly affect the accuracy and reliability of test results.

[0003] In existing electrochemical testing technologies, the test fixture is usually closed, which makes it very difficult to observe the reaction state of the internal electrode. Since the reaction process of the electrode cannot be directly observed, researchers can only rely on indirect electrochemical signals to infer the reaction state, which limits the possibility of in-depth understanding of the electrochemical reaction mechanism. In addition, the existing electrochemical test fixtures are often complex in structure, which not only makes the assembly and disassembly process cumbersome, but also is not convenient enough when the electrode needs to be replaced or cleaned.

[0004] In view of this, an electrochemical test fixture that is easy to observe is designed. Utility Model Content

[0005] The purpose of the utility model is to provide an electrochemical test fixture that is easy to observe, so as to solve the problems existing in the existing electrochemical test fixtures mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrochemical test fixture for easy observation, comprising a nut housing, an upper conductive column, a glass tube, a spring, a metal gasket and a base conductive column;

[0007] An observation port is provided through the front side of the nut housing;

[0008] The upper conductive column is connected to the inner side of the nut shell, and the upper end of the upper conductive column is embedded in the top opening of the nut shell, and the top of the upper conductive column is connected to an upper hexagonal copper column through a threaded structure;

[0009] The glass tube is connected to the outer side of the nut shell, and the upper end of the glass tube is connected to the outer side of the bottom of the upper conductive column;

[0010] The spring is connected between the bottom of the upper conductive column and the top of the metal gasket, and the spring is arranged inside the glass tube;

[0011] The metal gasket is arranged inside the glass tube;

[0012] The upper end of the base conductive column is connected to the inner side of the lower end of the glass tube, the middle part of the base conductive column is connected to the inner side of the lower end of the nut shell, and the side of the base conductive column is connected with a lower hexagonal copper column through a threaded structure.

[0013] Preferably, the upper end diameter length of the upper conductive column is adapted to the inner diameter length of the top opening of the nut shell, the middle diameter length of the upper conductive column is adapted to the inner diameter length of the middle of the nut shell, and the lower end diameter length of the upper conductive column is adapted to the inner diameter length of the glass tube.

[0014] Preferably, the lower end of the upper conductive column is sleeved with a first sealing ring, which is connected between the bottom of the middle part of the upper conductive column, the top of the glass tube, the inner wall of the nut shell, and the outer side of the lower end of the upper conductive column.

[0015] Preferably, the diameter length of the upper end of the conductive column of the base is matched with the inner diameter length of the glass tube, and the middle surface of the conductive column of the base is connected to the inner wall surface of the lower end of the nut shell through a threaded structure.

[0016] Preferably, a second sealing ring is sleeved on the upper end of the conductive column of the base, and the second sealing ring is connected between the outer side of the upper end of the conductive column of the base, the inner wall of the nut shell, the bottom of the glass tube, and the top of the middle part of the conductive column of the base.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The electrochemical test fixture is easy to observe, through the observation port on the front side of the nut shell and the transparent glass tube design, so that the reaction state of the internal electrode can be directly observed, which improves the intuitiveness and convenience of the test;

[0019] 2. The electrochemical test fixture that is easy to observe has a simple structure and is easy to assemble and disassemble quickly. It is particularly suitable for test environments that require frequent replacement or cleaning of electrodes;

[0020] 3. The easy-to-observe electrochemical test fixture can directly observe the electrode reaction state, reducing the reliance on indirect electrochemical signals, thereby speeding up data analysis and understanding of electrochemical reaction mechanisms;

[0021] 4. The precise size matching of each component of the electrochemical test fixture and the application of sealing rings ensure the stability and reliability during the test and improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an assembly diagram of Embodiment 1 of an electrochemical test fixture that is convenient for observation according to the utility model;

[0023] Figure 2This is a schematic diagram of the structure of a first embodiment of an electrochemical test fixture for easy observation according to the utility model after the nut housing is removed;

[0024] Figure 3 This is an exploded view of Embodiment 1 of an electrochemical test fixture that is easy to observe according to the utility model;

[0025] Figure 4 This is a front structural cross-sectional view of a first embodiment of an electrochemical test fixture that is easy to observe according to the utility model;

[0026] Figure 5 This is an exploded view of a second embodiment of an electrochemical test fixture that is easy to observe according to the utility model;

[0027] Figure 6 This is a front structural cross-sectional view of a second embodiment of an electrochemical test fixture that is easy to observe according to the utility model;

[0028] Figure 7 This is an assembly diagram of Embodiment 3 of an electrochemical test fixture that is convenient for observation according to the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the utility model of an electrochemical test fixture for easy observation after the nut shell is removed.

[0030] Fig. 9 This is an exploded view of Embodiment 3 of the utility model, an electrochemical test fixture that is easy to observe.

[0031] In the figure:

[0032] 1. Nut shell; 2. Upper conductive column; 3. Glass tube; 4. Spring;

[0033] 5. Metal gasket; 6. Base conductive column; 7. Observation port; 8. Upper hexagonal copper column;

[0034] 9. Lower hexagonal copper column; 10. First sealing ring; 11. Second sealing ring; 12. Sealing bolt;

[0035] 13. Trachea. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0039] See also Figure 1-9 The utility model provides a technical solution: an electrochemical test fixture that is easy to observe, including a nut shell 1, an upper conductive column 2, a glass tube 3, a spring 4, a metal gasket 5 and a base conductive column 6.

[0040] An observation port 7 is formed through the front side of the nut housing 1 .

[0041] The upper conductive column 2 is connected to the inner side of the nut shell 1 , and the upper end of the upper conductive column 2 is embedded in the top opening of the nut shell 1 . The top of the upper conductive column 2 is connected to an upper hexagonal copper column 8 via a threaded structure.

[0042] The upper end diameter length of the upper conductive column 2 is matched with the inner diameter length of the top opening of the nut housing 1, the middle diameter length of the upper conductive column 2 is matched with the inner diameter length of the middle part of the nut housing 1, and the lower end diameter length of the upper conductive column 2 is matched with the inner diameter length of the glass tube 3. Specifically, the precise matching of the upper conductive column 2 with the nut housing 1 and the glass tube 3 ensures the overall stability of the fixture and avoids leakage or loosening during the test.

[0043] The lower end of the upper conductive column 2 is sleeved with a first sealing ring 10, which is connected between the bottom of the middle part of the upper conductive column 2, the top of the glass tube 3, the inner wall of the nut housing 1, and the outer side of the lower end of the upper conductive column 2. Specifically, by setting the first sealing ring 10, the sealing performance of the clamp is further enhanced, the stability of the test environment is ensured, and the leakage of the test liquid is prevented.

[0044] The glass tube 3 is connected to the outer side of the nut housing 1 , and the upper end of the glass tube 3 is connected to the outer side of the bottom of the upper conductive column 2 .

[0045] Specifically, after the assembly is completed, the reaction state of the electrode inside the glass tube 3 can be directly observed through the observation port 7 on the front side of the nut shell 1 and the transparent glass tube 3 design, which improves the intuitiveness and convenience of the test, and the ability to directly observe the electrode reaction state reduces the dependence on indirect electrochemical signals, thereby speeding up data analysis and understanding of the electrochemical reaction mechanism.

[0046] The spring 4 is connected between the bottom of the upper conductive column 2 and the top of the metal gasket 5 , and the spring 4 is disposed inside the glass tube 3 .

[0047] The metal gasket 5 is arranged inside the glass tube 3 .

[0048] The upper end of the base conductive column 6 is connected to the inner side of the lower end of the glass tube 3, the middle part of the base conductive column 6 is connected to the inner side of the lower end of the nut housing 1, and the side of the base conductive column 6 is connected to the lower hexagonal copper column 9 through a threaded structure. Specifically, the base conductive column 6 is a three-stage design, and the diameter and length of the base conductive column 6 increase from top to bottom, so that the center of gravity of the base conductive column 6 is lower. After assembly, the base conductive column 6 allows the entire fixture to stand on the desktop for easy observation.

[0049] The diameter length of the upper end of the base conductive column 6 is adapted to the inner diameter length of the glass tube 3, and the middle surface of the base conductive column 6 is connected to the inner wall surface of the lower end of the nut shell 1 through a threaded structure. Specifically, the design of the base conductive column 6 is adapted to the glass tube 3 and the nut shell 1, thereby improving the structural stability and reliability of the clamp.

[0050] The upper end of the base conductive column 6 is sleeved with a second sealing ring 11, which is connected between the outer side of the upper end of the base conductive column 6, the inner wall of the nut housing 1, the bottom of the glass tube 3, and the top of the middle part of the base conductive column 6. Specifically, through the application of the second sealing ring 11, the sealing performance of the clamp is also enhanced, ensuring the accuracy and reliability of the electrochemical test.

[0051] Specifically, the first sealing ring 10 and the second sealing ring 11 are both made of fluororubber, which has excellent elasticity, high temperature resistance, stability and mechanical properties.

[0052] Specifically, the electrochemical test fixture that is easy to observe has a simple structure, is easy to assemble and disassemble quickly, and is particularly suitable for a test environment that requires frequent replacement or cleaning of electrodes. Example 1

[0053] The same parts as those described in the previous part of the specification will not be repeated here.

[0054] For details, please refer to the attached manual. Figure 1-4 During assembly, the upper conductive column 2 can be installed from the bottom of the nut shell 1 first, so that the upper end of the upper conductive column 2 is connected to the top of the nut shell 1, and then the first sealing ring 10 is connected to the outer side of the lower end of the upper conductive column 2, and then the glass tube 3, the spring 4, and the metal gasket 5 are installed on the inner side of the nut shell 1, and then the second sealing ring 11 is sleeved on the outer side of the upper end of the base conductive column 6, and the electrochemical test material is placed on the top of the base conductive column 6, and then the base conductive column 6 is installed in the bottom of the nut shell 1. As the base conductive column 6 is screwed into the inner side of the nut shell 1, the first sealing ring 10 and the second sealing ring 11 are squeezed and deformed, thereby effectively sealing the connection between the upper conductive column 2, the glass tube 3, the base conductive column 6, and the nut shell 1.

[0055] Specifically, the upper hexagonal copper column 8 matches the shape of the lower hexagonal copper column 9. One end of the upper hexagonal copper column 8 is a threaded column structure, and the other end of the upper hexagonal copper column 8 is a hollow outer hexagonal column structure. Figure 1 After the upper hexagonal copper column 8 and the lower hexagonal copper column 9 are installed, the upper hexagonal copper column 8 and the lower hexagonal copper column 9 act as two power connection posts, one connected to the positive pole of the power supply, and the other connected to the negative pole of the power supply. If the upper hexagonal copper column 8 is connected to the positive pole of the power supply, the upper hexagonal copper column 8 will be positively charged. Because the spring 4 is made of metal conductive material, the spring 4 and the metal gasket 5 in contact with the lower side will also be positively charged, and then the electrode test material placed under the metal gasket 5 will be positively charged. The lower hexagonal copper column 9 is connected to the negative pole of the power supply, so the lower hexagonal copper column 9 and the base conductive column 6 will be negatively charged, and the electrode test material above the base conductive column 6 in contact with it will be negatively charged. The positive electrode material and the negative electrode material can be separated by an exchange membrane. In this way, the entire device constitutes a closed loop, and the electrode material achieves the test effect.

[0056] Specifically, after the electrochemical test fixture is assembled, the electrochemical test material therein can be completely presented in the observation port 7 of the nut shell 1. When the electrode material is thicker, the spring 4 is squeezed to a greater extent, but the position of the base conductive column 6 remains unchanged, and the electrochemical material is still within the light window. When the electrode material is thinner, the spring is squeezed to a lesser extent and does not affect the position of the electrode material in the light window. Example 2

[0057] The same parts as those described in the previous part of the specification will not be repeated here.

[0058] This embodiment is applied to reduce cost requirements.

[0059] For details, please refer to the attached manual. Figure 5-6On the basis of the first embodiment, the upper conductive column 2 is symmetrically split into two identical parts for easy processing, and the base conductive column 6 is split into two parts for easy replacement of different materials, thereby achieving lower costs.

[0060] Specifically, due to the needs of customers and the market, usually, the base conductive column 6 and the upper conductive column 2 need to be replaced with various materials such as titanium, stainless steel, nickel, etc., and the parts with higher processing costs are split into lower-cost parts. When changing the material, only one of the low-cost parts in contact with the electrode needs to be replaced to meet the needs of customers and the market. Example 3

[0061] The same parts as those described in the previous part of the specification will not be repeated here.

[0062] This embodiment is applied to the field of zinc-air fuel cells.

[0063] For details, please refer to the attached manual. Figure 7-9 On the basis of the first embodiment, two groups of sealing bolts 12 are installed through the upper conductive column 2. The sealing bolts 12 are connected to the inner side of the upper conductive column 2 through a threaded structure, and the sealing bolts 12 are hollow structures. An air pipe 13 is connected to the inner side of the sealing bolts 12, and a plurality of through holes are opened through the inner side of the metal gasket 5.

[0064] For details, please refer to the attached manual. Figure 7-9 The test fixture used in the field of zinc-air fuel cells only changes the structure of the upper conductive column 2 and the metal gasket 5, and adds two sealing bolts 12 and two groups of air pipes 13, that is, a pair of gas inlet and outlet loops are added to provide a gas circulation function for the test addition. The gas can be input into the reaction chamber inside the glass tube 3 through one group of air pipes 13, and the gas can be discharged through the other group of air pipes 13, and the porous structure of the metal gasket 5 facilitates the smooth flow of gas.

[0065] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrochemical test fixture for easy observation, characterized in that: It comprises a nut housing (1), an upper conductive column (2), a glass tube (3), a spring (4), a metal gasket (5) and a base conductive column (6); An observation port (7) is formed through the front side of the nut housing (1); The upper conductive column (2) is connected to the inner side of the nut shell (1), and the upper end of the upper conductive column (2) is embedded in the top opening of the nut shell (1), and the top of the upper conductive column (2) is connected to an upper hexagonal copper column (8) via a threaded structure; The glass tube (3) is connected to the outside of the nut housing (1), and the upper end of the glass tube (3) is connected to the outside of the bottom of the upper conductive column (2); The spring (4) is connected between the bottom of the upper conductive column (2) and the top of the metal gasket (5), and the spring (4) is arranged inside the glass tube (3); The metal gasket (5) is arranged on the inner side of the glass tube (3); The upper end of the base conductive column (6) is connected to the inner side of the lower end of the glass tube (3), the middle part of the base conductive column (6) is connected to the inner side of the lower end of the nut housing (1), and the side surface of the base conductive column (6) is connected to a lower hexagonal copper column (9) via a threaded structure.

2. The electrochemical test fixture for easy observation according to claim 1, characterized in that: The diameter length of the upper end of the upper conductive column (2) is matched to the inner diameter length of the top opening of the nut shell (1), the diameter length of the middle part of the upper conductive column (2) is matched to the inner diameter length of the middle part of the nut shell (1), and the diameter length of the lower end of the upper conductive column (2) is matched to the inner diameter length of the glass tube (3).

3. The electrochemical test fixture for easy observation according to claim 1, characterized in that: The lower end of the upper conductive column (2) is sleeved with a first sealing ring (10), and the first sealing ring (10) is connected between the bottom of the middle part of the upper conductive column (2), the top of the glass tube (3), the inner wall of the nut shell (1), and the outer side of the lower end of the upper conductive column (2).

4. The electrochemical test fixture for easy observation according to claim 1, characterized in that: The diameter length of the upper end of the base conductive column (6) is matched to the inner diameter length of the glass tube (3), and the middle surface of the base conductive column (6) is connected to the inner wall surface of the lower end of the nut housing (1) through a threaded structure.

5. The electrochemical test fixture for easy observation according to claim 1, characterized in that: The upper end of the base conductive column (6) is sleeved with a second sealing ring (11), and the second sealing ring (11) is connected between the outer side of the upper end of the base conductive column (6), the inner wall of the nut shell (1), the bottom of the glass tube (3), and the top of the middle part of the base conductive column (6).

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