A test bench for battery testing

Abstract

The utility model discloses a test bench for battery test, include: test bench, set up on the base of experiment table, fixed bolster. The side of base away from test bench forms and places plane and is suitable for placing clamp, and the base structure has first groove body, one end of fixed bolster constructs and connects the protruding, and the joint protruding is suitable for with first groove body cooperation. Therefore, the fixed bolster is set to with the base detachable in the application embodiment, when needing to switch for crocodile clip test mode, only the experimental battery that two end clamping has crocodile clip is placed on the fixed bolster, avoids crocodile and test bench contact simultaneously, does not need to place multiple crocodile clips on the experiment table and leads to line confusion, and can shift one fixed bolster to the different base on the test table.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a test bench for battery testing. Background Technology

[0002] The experimental battery is mainly used for battery material research and electrochemical performance testing.

[0003] Generally, when testing battery charge and discharge, the equipment uses button cell battery clamps. To ensure the stability of the button cell batteries during testing and to prevent contact between the batteries and other objects, especially conductors, the clamps are fixed to the test tray, thus ensuring the stability of the testing process. However, in actual testing, the button cell battery clamps need to be replaced with alligator clips.

[0004] On the one hand, the button battery clamps are already fixed on the test tray, taking up a lot of space; on the other hand, the test end of the alligator clip is a free end, and there is no dedicated place for test batteries in each channel. The connecting wires between different channels are easy to get tangled, and the test batteries are easy to come into contact with other clamps or conductors when placed directly on the tray, which leads to deviations in the test results.

[0005] For example, Swagelok batteries are widely used in research fields such as lithium-ion batteries, sodium-ion batteries, and potassium-ion batteries. Due to their ease of assembly and disassembly, and the fact that disassembly does not easily damage the electrode plates and other components, Swagelok batteries are particularly favored by laboratory researchers as a key battery type for studying battery components such as electrode materials and electrolytes.

[0006] Swagelok batteries belong to a three-electrode system and have several advantages over traditional three-electrode systems, such as (1) smaller polarization, more stable testing, and extremely short electrode spacing (<0.1 mm), which significantly reduces concentration polarization, making the electrochemical curve smoother and more continuous, and more realistically reflecting the electrochemical performance of the material. In Swagelok batteries, the electrode plates are completely immersed in the electrolyte, avoiding the instability of the three-phase interface (solid-liquid-gas) and reducing test interference. (2) better sealing and simple operation. It can be completely sealed and is suitable for organic electrolyte systems, such as lithium-ion, sodium-ion, potassium-ion batteries, and even lithium-air batteries. Compared with traditional three-electrode systems, it has better airtightness, reduces side reactions, and improves test accuracy. (3) wide range of applicable environments. It can be used in strong acid, strong alkali, medium-high temperature or low temperature environments (maximum tolerance temperature is below 320°C). It is small in size and consumes less electrolyte, requiring only a few drops to complete the test. (4) optimized structure and easy operation, such as Figure 1As shown, Swagelok batteries employ a screw-on connection method, making assembly 2-3 times faster than traditional three-electrode batteries. Some new Swagelok batteries utilize a spring structure to prevent excessive compression from damaging the battery sample. Therefore, Swagelok batteries are frequently used in laboratories to study the changes in electrode materials, electrolyte materials, separators, and current collectors during electrochemical cycling, significantly reducing damage to electrodes and their components during battery disassembly.

[0007] In actual testing, Swagelok batteries are tested under the same conditions as ordinary button batteries. Charge-discharge cycle testing requires battery charging and discharging equipment, with the instruments stacked on top of each other. Each instrument has a fixed number of test channels, and different test fixtures are required depending on the type of battery being tested. For commonly used button batteries, plate-type fixtures, button fixtures, and polymer fixtures can be used, while for Swagelok batteries, alligator clips are required. Due to the cylindrical structure of Swagelok batteries and the limited space on the test tray, Swagelok batteries often roll and slip off the tray. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a test bench for battery testing.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] A test bench for battery testing includes: a test bench, a base mounted on the test bench, and a fixing bracket.

[0011] The base has a placement plane on the side away from the test bench, which is suitable for placing the fixture, and the base is constructed with a first groove; one end of the fixed bracket is constructed with a snap-fit ​​protrusion, which is adapted to cooperate with the first groove.

[0012] The beneficial effects of this utility model are: in the embodiments of this application, the fixed bracket is set to be detachable from the base. When it is necessary to switch to the alligator clip test mode, only the experimental battery with alligator clips at both ends is placed on the fixed bracket. This avoids contact between the alligator and the test bench, and eliminates the need to place multiple alligator clips on the test bench, which would cause the circuit to become messy. Furthermore, a fixed bracket can be transferred to different bases on the test bench.

[0013] Furthermore, the base includes: a strip plate and a first side plate and a second side plate extending from both sides of the strip plate in the width direction, one side of the strip plate in the thickness direction is fixed to the experimental table, and the strip plate, the first side plate and the second side plate define the first groove.

[0014] Furthermore, the first side plate extends a first extension segment from the end away from the strip plate, and the second side plate extends a second extension segment from the end away from the strip plate. The extension directions of the first extension segment and the second extension segment are relatively close to each other, and the first extension segment and the second extension segment define a space between the strip plate and the strip plate in the thickness direction of the strip plate.

[0015] Furthermore, at one end of the strip-shaped plate along its length, the first groove has an opening, and the snap-fit ​​protrusion is adapted to snap into the opening.

[0016] Furthermore, a second groove is provided at the end of the fixed bracket away from the snap-fit ​​protrusion, the opening side of the second groove is located at the end of the fixed bracket, and the opening direction is perpendicular to the base.

[0017] Furthermore, the fixing bracket is constructed as a hollow column, and the second groove is an open space formed by the hollow part of the fixing bracket at the end away from the snap-fit ​​protrusion.

[0018] Furthermore, the fixing bracket is constructed as a column, and the snap-fit ​​protrusion is a flange extending from one end of the column.

[0019] Furthermore, the fixed bracket is constructed in a U-shape, with the snap-fit ​​protrusions at the ends of the two open sections of the U-shape, and the closed section connecting the two open sections is constructed with the second groove.

[0020] Furthermore, the opening of the second groove is arc-shaped. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the base and fixing bracket structure with a test battery placed according to some embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the base structure according to some embodiments of this application;

[0023] Figure 3 This is a schematic diagram of a fixed bracket structure according to some embodiments of this application;

[0024] Figure 4 This is a schematic diagram of a fixed support structure according to some other embodiments of this application.

[0025] In the picture:

[0026] 100 - Base;

[0027] 110 - Strip plate, 120 - First side plate, 121 - First extension section, 130 - Second side plate, 131 - Second extension section, 140 - First groove;

[0028] 200-Fixed bracket;

[0029] 210-Snap-fit ​​protrusion, 220-Second groove, 221-Groove opening, 230-Open section, 240-Closed section;

[0030] 300-Swagelok battery, 310-middle shell. Detailed Implementation

[0031] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] See Figures 1-3 This utility model provides a technical solution:

[0033] A test bench for battery testing includes: a test bench (not shown), a base 100 disposed on the test bench, and a fixing bracket 200.

[0034] The experimental platform described in this embodiment is used for battery testing. During the test, the button battery needs to be clamped in a special fixture. These fixtures need to be placed on a stable plane and have a certain distance between them and the surface of the experimental platform to ensure that the test is not affected by other factors.

[0035] Therefore, in this embodiment, a base 100 is provided on the experimental platform, and a placement plane is formed on the side away from the experimental platform to accommodate the fixture. The base 100 also has a first groove 140. (See reference) Figure 1 Understanding the corresponding exemplary structure, the first groove 140 is formed on the base 100 and can be engaged with the fixed bracket 200. In detail, one end of the fixed bracket 200 is constructed with a engaging protrusion 210. The outer peripheral structure of the engaging protrusion 210 is basically the same as or slightly smaller than the inner peripheral structure of the first groove 140, so it is suitable for cooperating with the first groove 140.

[0036] Of course, the first groove 140 can be constructed into various types of grooves, and its opening direction can be different; similarly, the snap-fit ​​protrusion 210 of the fixed bracket 200 can also be adapted to different groove structures. Furthermore, if those skilled in the art, after understanding the technical solution of this application, set the first groove 140 on the fixed bracket 200 and set the snap-fit ​​protrusion 210 on the base 100, this is also a simple substitution based on the technical solution of this application and should fall within the protection scope of this application.

[0037] Therefore, in this embodiment of the application, the fixed bracket 200 is set to be detachable from the base 100. When it is necessary to switch to the alligator clip test mode, only the experimental battery with alligator clips at both ends is placed on the fixed bracket 200. This avoids contact between the alligator and the test bench, and eliminates the need to place multiple alligator clips on the test bench, which would cause the circuit to become messy. Furthermore, a fixed bracket 200 can be transferred to different bases 100 on the test bench.

[0038] Specifically, such as Figure 2 As shown, in some embodiments, the base 100 includes: a strip-shaped plate 110 and a first side plate 120 and a second side plate 130 extending from both sides of the strip-shaped plate 110 in the width direction. One side of the strip-shaped plate 110 in the thickness direction is fixed to the experimental table. The strip-shaped plate 110, the first side plate 120, and the second side plate 130 define the first groove 140. In this way, when the experimenter places the fixing bracket 200 on the base 100, it can be directly inserted through the open side of the first groove 140, which is more convenient and quick.

[0039] Furthermore, the first side plate 120 extends a first extension segment 121 from the end away from the strip plate 110, and the second side plate 130 extends a second extension segment 131 from the end away from the strip plate 110. The extension directions of the first extension segment 121 and the second extension segment 131 are relatively close to each other, and the first extension segment 121 and the second extension segment 131 define a space between the strip plate 110 and the strip plate 110 in the thickness direction of the strip plate 110.

[0040] Thus, the first extension segment 121 and the second extension segment 131 push against the snap-fit ​​protrusion 210 in the height direction, thereby making it stably set in the interval space, which helps to improve the stability of the fixed bracket 200 after snap-fit.

[0041] Furthermore, at one end of the strip plate 110 along its length, the first groove 140 has an opening, and the snap-fit ​​protrusion 210 is adapted to snap into the opening.

[0042] In use, the snap-fit ​​protrusion 210 at the lower end of the fixing bracket 200 can slide and embed into the fixed base 100 along the edge of the base 100. In this way, when multiple clamps are placed on the base 100, it is not necessary to extend the length of the base 100 to accommodate the fixing bracket 200 in the length direction while placing multiple clamps. Instead, the fixing bracket 200 can be slid relative to the base 100, and the sliding position of the fixing bracket 200 can be selected according to the number of clamps placed, so that the fixing bracket 200 can be placed next to the button battery clamp.

[0043] For example Figure 2 As shown, the fixed bracket 200 is constructed as a square column, and the snap-fit ​​protrusion 210 is a flange extending from one end of the column. The flange is constructed as a square structure, and the thickness of the flange matches the spacing space, so as to be suitable for snapping into the base 100.

[0044] refer to Figure 1 and combined Figure 3 In some embodiments, the fixing bracket 200 has a second groove 220 at the end away from the snap-fit ​​protrusion 210. The opening of the second groove 220 is located at the end of the fixing bracket 200, and the opening direction is perpendicular to the base 100. This creates a recessed space at the end of the fixing bracket 200, allowing experimental batteries with a non-planar shape to place their protruding parts into this recessed space, thus ensuring stable placement of the experimental battery on the fixing bracket 200. It is understood that, compared to other complex structures, providing a second groove on the fixing bracket 200 is a very low-cost method.

[0045] Of course, the second tank 220 can be constructed in different ways, such as having an arc-shaped groove or other shapes on its open side to match the shape of different experimental batteries.

[0046] Next, taking the Swagelok 300 battery as an example, combined with... Figure 1 and Figure 3 To understand.

[0047] For example, the fixing bracket 200 is constructed as a hollow cylinder, and the second groove 220 is an open space formed in the hollow portion of the fixing bracket 200 at the end away from the snap-fit ​​protrusion 210. Compared to a structure with a separate groove, directly constructing a hollow cylinder only requires one injection molding, resulting in lower costs; furthermore, the second groove 220 formed based on the through-hole is suitable for different experimental batteries, such as... Figure 1 In this case, the curved section of the Swagelok battery 300 can be inserted into it, so that the upper end of the fixing bracket 200 supports the middle shell 310 of the Swagelok battery 300, and the lower end is fixed to the base 100.

[0048] In this way, on the one hand, the fixing bracket 200 places the Swagelok battery 300 above the button battery clamp without occupying a large amount of limited tray space; on the other hand, it prioritizes avoiding possible electrical contact of the Swagelok battery 300, ensuring the validity of the test results, while also preventing the Swagelok battery 300 from rolling off. In addition, the fixing bracket 200 clearly defines the placement position of the test battery in each test channel, simplifying the actual testing process and effectively avoiding the problem of alligator clip test leads getting tangled.

[0049] In other embodiments, reference is made to Figure 4 As shown, the fixed bracket is constructed in a U-shape. The ends of the two open sections 230 in the U-shape are provided with snap-fit ​​protrusions 210. Specifically, the two snap-fit ​​protrusions 210 are protrusions formed by the open sections 230 facing outward to be suitable for engaging with the base. The closed section 240 connecting the two open sections 230 is constructed with the second groove 220 to be suitable for placing the experimental battery.

[0050] Continuing with the example of placing the Swagelok battery 300, since the middle shell 310 of the Swagelok battery 300 is arc-shaped, the bottom wall of the second groove 220 is also constructed to be arc-shaped to fit with the middle shell 310, and the width matches the width of the middle shell.

[0051] More specifically, the slot 221 of the second groove 220 is arc-shaped, so the slots 221 on both sides can support other areas on both sides of the middle shell 310 of the Swagelok battery 300, thus also supporting the entire battery.

[0052] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A test bench for battery testing, characterized in that, include: Test bench; A base is set on the experimental table, and a placement plane is formed on the side of the base away from the experimental table to accommodate a fixture, and the base is constructed with a first groove. A fixed bracket, one end of which is provided with a snap-fit ​​protrusion adapted to engage with the first groove.

2. The test bench for battery testing according to claim 1, characterized in that, The base includes: The strip plate and the first side plate and the second side plate extending from both sides in the width direction of the strip plate, one side of the strip plate in the thickness direction is fixed to the experimental table, and the strip plate, the first side plate and the second side plate define the first groove.

3. The test bench for battery testing according to claim 2, characterized in that, The first side plate extends from the end away from the strip plate body with a first extension section, and the second side plate extends from the end away from the strip plate body with a second extension section. The extension directions of the first extension section and the second extension section are relatively close to each other, and the first extension section and the second extension section define a space between the strip plate body and the strip plate body in the thickness direction of the strip plate body.

4. The test bench for battery testing according to claim 2, characterized in that, At one end of the strip-shaped plate along its length, the first groove has an opening, and the snap-fit ​​protrusion is adapted to snap into the opening.

5. The test bench for battery testing according to any one of claims 1-4, characterized in that, The fixed bracket has a second groove at the end away from the snap-fit ​​protrusion. The opening side of the second groove is located at the end of the fixed bracket, and the opening direction is perpendicular to the base.

6. The test bench for battery testing according to claim 5, characterized in that, The fixed bracket is constructed as a hollow column, and the second groove is an open space formed by the hollow part of the fixed bracket at the end away from the snap-fit ​​protrusion.

7. The test bench for battery testing according to claim 5, characterized in that, The fixed bracket is constructed as a column, and the snap-fit ​​protrusion is a flange extending from one end of the column.

8. The test bench for battery testing according to claim 5, characterized in that, The fixed bracket is constructed in a U-shape, with the snap-fit ​​protrusions at the ends of the two open sections of the U-shape, and the closed section connecting the two open sections is constructed with the second groove.

9. The test bench for battery testing according to claim 8, characterized in that, The opening of the second groove is arc-shaped.

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