A battery testing device for energy storage

Abstract

This utility model discloses a battery testing device, including a housing and, from top to bottom, a carrying platform, an aperture adjustment assembly, a spotlight assembly, and a light source switch arranged inside. The light source switch controls the on / off state of the spotlight assembly. The housing is connected to an observation cover via a light-shielding assembly. Several supports are evenly distributed around the circumference of the observation cover, supporting the light-shielding cover of the light-shielding assembly. The light-shielding cover blocks stray light from the external environment from entering the observation area. The battery testing device of this utility model has a simple structure and is easy to operate. Under the illumination of the spotlight assembly, it can quickly identify defects in ceramic sheets and remove them from the production process, preventing them from entering subsequent testing processes such as ionic conductivity. Simultaneously, it can indirectly reflect the stability and reliability of the production line.

Description

Technical Field

[0001] This utility model relates to the field of solid electrolyte production and testing technology, specifically to a battery testing device that can test battery-related materials or devices, preferably oxide solid electrolyte ceramic sheets. Background Technology

[0002] Oxide solid-state electrolytes (OSEs) play a crucial role in advanced energy storage and conversion technologies such as solid-state batteries. Cold pressing followed by high-temperature calcination is a critical step in their preparation process. However, a serious problem often arises in practice: while the surface of the OSE ceramic sheets after high-temperature calcination may appear normal, internal defects such as cracks may be hidden. When these internally flawed ceramic sheets are mistakenly sent to subsequent critical testing processes such as ionic conductivity, the resulting test results will deviate significantly from the true performance data due to the incompleteness of their internal structure. This fails to provide a reliable basis for product development and quality assessment, leading to a significant waste of testing resources, including manpower, materials, and valuable time. Furthermore, such misjudgments can mask potential process anomalies or equipment malfunctions in the production line, delaying the discovery and resolution of problems and negatively impacting the efficiency of the entire production process and the stability of product quality. Therefore, there is an urgent need for an efficient, accurate, and convenient testing device that can quickly and effectively identify products with internal defects before ceramic sheets enter subsequent testing processes, ensuring that only qualified oxide solid electrolyte ceramic sheets enter the subsequent testing and application stages. Utility Model Content

[0003] This invention aims to solve at least one of the above-mentioned problems and discloses a battery testing device. Under the protection of the observation cover and the light shield, this invention can avoid interference from external light. Through the cooperation of the aperture adjustment component and the spotlight assembly, it can quickly identify the defects of the ceramic sheet and remove it from the production process, preventing it from entering subsequent testing processes such as ionic conductivity. At the same time, it can indirectly reflect the stability and reliability of the production line.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model first provides a battery testing device, including a housing and a loading platform, an aperture adjustment component, a spotlight assembly, and a light source switch arranged sequentially from top to bottom inside the housing. The light source switch is used to control the on and off of the spotlight assembly. The housing is connected to the observation cover through a light-shielding component. Several supports are evenly distributed around the circumference of the observation cover. The supports are used to support the light-shielding cover of the light-shielding component. The light-shielding cover is used to block stray light from the external environment from entering the observation area.

[0006] As a further improvement, the observation cover adopts an arc-shaped structure made of transparent optical material.

[0007] As a further step, the observation hood is hemispherical or semi-cylindrical.

[0008] As a further step, the number of support brackets should be at least four.

[0009] As a further improvement, the center of the loading platform is provided with a limiting groove for supporting the object to be tested. The limiting groove is circular and its depth is less than the thickness of the object to be tested. Several lugs for connecting the cover support are evenly distributed around the circumference of the loading platform. The cover support passes through the lugs and is fixedly connected to the shell.

[0010] As a further improvement, the limiting groove is a recess and its size matches the size of the object to be measured.

[0011] As a further improvement, the aperture adjustment assembly includes an adjustment gear and several light-shielding blades that mesh circumferentially inside it. The adjustment gear is embedded inside the housing, and the outer ring of the adjustment gear is located outside the housing. Each light-shielding blade has an arc-shaped groove and a connecting part. The connecting part is used to rotatably connect with the inside of the housing. Each arc-shaped groove also has a fixed post inside it. The fixed post is fixedly connected to the inside of the housing, so that the arc-shaped groove can move along the fixed post under the drive of external force. The arc of the light-shielding blade on the side near the adjustment gear is ≈360° / number of light-shielding blades ±5°.

[0012] As a further step, the number of teeth on the internal gear is adjusted to be 20-60, the number of shading blades is adjusted to be 5-10, and the number of teeth on the external shading blades is adjusted to be 5-15.

[0013] As a further improvement, when the aperture adjustment assembly forms an aperture with outer diameters of 0mm, 10-14mm, 14-20mm, and 40mm, the counterclockwise rotation angles of the adjustment gear are 0°, 120°, 240°, and 360°, respectively.

[0014] As a further improvement, the spotlight assembly includes a spotlight platform and LED lights mounted on top of it. The spotlight platform is circular in shape and is formed by circumferentially splicing multiple aggregation platforms. The edge of each aggregation platform is fitted into the shell. An LED light is installed at the center of each aggregation platform, and the vertical distance from the center of the LED light source to the aperture plane is no more than 12cm. The centripetal convergence angle of the spotlight platform is α, where α = arctan(aperture radius / 10).

[0015] The features and beneficial effects of this utility model are as follows:

[0016] (1) The detection device described in this utility model has a simple structure and is easy to operate. Under the illumination of the spotlight group, it can quickly identify the defects of the ceramic sheet and remove it from the production process to avoid it from entering the subsequent ionic conductivity and other testing processes. At the same time, it can indirectly reflect the stability and reliability of the production line.

[0017] (2) The observation cover of this utility model is designed to provide the inspector with a clear and undisturbed field of view, so that he can easily observe the internal condition of the ceramic piece under the light of the ceramic inspection table. It is friendly to staff who wear glasses. Even staff who do not wear glasses do not need to press their eyes against the eyepiece like traditional eyepieces, which can easily lead to visual fatigue after long-term observation.

[0018] (3) The light shield of this utility model is arranged around the observation cover. Its main function is to effectively block stray light from the external environment from entering the observation area. The presence of stray light may reduce the contrast between the internal defects of the ceramic piece and the background, affecting the accuracy and reliability of the inspection. The light shield can be a light-shielding curtain. By flexibly adjusting the light-shielding range and angle, it can adapt to different inspection environments and lighting conditions, ensuring that during the inspection process, only the light source of the ceramic inspection table shines on the ceramic piece and is observed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the battery detection device described in an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the battery detection device described in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the aperture adjustment component described in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the aperture adjustment process in the aperture adjustment assembly described in this embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram showing the usage state of the battery testing device described in this embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Observation hood; 200-Light-shielding assembly; 210-Light-shielding cover; 220-Cover support; 300-Platform; 400-Aperture adjustment assembly; 410-Adjustment gear; 420-Light-shielding blade; 421-Arc groove; 422-Connecting part; 430-Fixing column; 500-Spotlight assembly; 600-Housing; 700-Light source switch. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below, along with embodiments of this utility model, but this does not limit the scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] A battery testing device is provided to test battery-related materials or devices, preferably oxide solid electrolyte ceramic sheets, such as... Figures 1 to 5As shown, the device includes a housing 600 and, from top to bottom, a carrying platform 300, an aperture adjustment assembly 400, a spotlight assembly 500, and a light source switch 700 arranged inside it. The housing 600 is also connected to the observation hood 100 via a cover support 220 of a light-shielding assembly 200. Several cover supports 220 are evenly distributed around the circumference of the observation hood 100. The several cover supports 220 are used to support the light-shielding cover 210 of the light-shielding assembly 200. The light-shielding cover 210 is used to block stray light from the external environment from entering the observation area.

[0031] To facilitate observation of the internal condition of the ceramic sample under illumination and to protect it, the observation cover 100 employs a curved structure made of transparent optical material. Unlike traditional cylindrical eyepieces, the curved structure of the observation cover 100 eliminates the need for operators to bring their eyes close to the observation component when observing the sample. This avoids eye strain caused by prolonged close-up observation for operators who do not wear glasses. Furthermore, its structural design solves the problem of traditional cylindrical eyepieces being inconvenient for operators who wear glasses.

[0032] In some embodiments, the observation hood 100 is hemispherical or semi-cylindrical.

[0033] Preferably, the transparent optical material has the characteristics of high transparency and low refractive index variation. In some embodiments, the observation cover 100 is made of acrylic sheet or glass.

[0034] The light-shielding assembly 200 includes a light-shielding cover 210 and several cover supports 220. Several cover supports 220 are evenly distributed around the observation cover 100. The several cover supports 220 are used to support the light-shielding cover 210. The light-shielding cover 210 is used to block stray light from the external environment from entering the observation area.

[0035] In some embodiments, the observation cover 100 is provided with a plurality of insertion holes for inserting the cover support 220 below, and the cover support 220 is also inserted into the loading platform 3 below.

[0036] In other embodiments, the observation cover 100 is welded to the cover support 220 or is an integral structure thereunder.

[0037] Preferably, the number of cover supports 220 is at least 4, one reason being that they can form a stable assembly structure, and another reason being that they can match the circumferential shape of the observation cover 210 to avoid light leakage.

[0038] The presence of stray light from the outside may reduce the contrast between internal defects of the ceramic sheet and the background, affecting the accuracy and reliability of the detection. The support provided by the shield allows the light shield to remain open and effectively prevents it from obstructing the view of the sample. The light shield can be a light-blocking curtain, made of black fabric with good light absorption properties. By flexibly adjusting the shading range and angle, it can adapt to different detection environments and lighting conditions, ensuring that during the detection process, only the light from the light source shining on the platform 3 illuminates the ceramic sheet and is observed.

[0039] The loading platform 300 has a limiting groove at its center for supporting the object to be measured. The limiting groove is circular and its depth is less than the thickness of the object to be measured. The loading platform 300 has several lugs evenly distributed around its circumference for connecting the cover support 220.

[0040] In some embodiments, the platform is made of thin, high-transmittance, high-quality quartz glass. It not only meets optical performance requirements but also possesses good high-temperature resistance and chemical stability to adapt to the testing environment of oxide solid electrolyte ceramic sheets.

[0041] The limiting groove is a sunken type, with a depth less than the thickness of the object under test, and its external dimensions match the dimensions of the object. This design serves two purposes: firstly, it limits the object placed within the circular area, ensuring it does not shift during observation; secondly, because the sunken depth is less than the thickness of the object, some structures of the object protrude from the surface of the platform, facilitating the removal and placement of the object after observation.

[0042] In some embodiments, the platform 300 has four hollow, rounded-corner lugs evenly distributed around its circumference. The cover support 220 of the light shield passes through each of these lugs, and after passing through them, the cover support 220 is fixedly connected to the housing 600. Preferably, the cover support 220 is welded to the housing 600 or fixedly connected by screws, thereby achieving the assembly and fixation of the platform 300 and the housing 600. The platform 300 is positioned above the aperture adjustment assembly 400, and its surface is treated to have high flatness and extremely low reflectivity. This characteristic ensures that light can propagate evenly and stably when passing through the ceramic sheet, avoiding interference with the observation and judgment of internal defects of the ceramic sheet due to unevenness or reflection on the surface of the platform 300.

[0043] The aperture adjustment assembly 400 includes an adjustment gear 410 and several light-shielding blades 420 that mesh circumferentially inside it. The adjustment gear 410 is embedded inside the housing 600, and the outer ring of the adjustment gear 410 is located outside the housing 600, which facilitates the operator to adjust the aperture size. The adjustment gear 410 has several internal teeth evenly distributed. Each light-shielding blade 420 is provided with an arc-shaped groove 421 and a connecting part 422. The connecting part 422 is used to rotatably connect with the inside of the housing 600. Each arc-shaped groove 421 is also provided with a fixing post 430. The fixing post 430 is fixedly connected to the inside of the housing 600, so that the arc-shaped groove 421 can move along the fixing post 430 under the drive of external force. The aperture adjustment component 400 can control the opening and closing degree of the light-shielding blades 420 by adjusting the adjustment gear 410 outside the housing 600 clockwise or counterclockwise. In use, the size of the aperture can be flexibly adjusted according to the diameter of the sample to be tested, that is, the radius of the light source is controlled, preventing the strong light of the spotlight assembly 500 from shining directly into the eyes through the sample, protecting eyesight and helping to better observe the sample.

[0044] In some embodiments, the connecting part 422 includes a through hole and a pin sleeved inside it, and the pin is fixedly connected to the inside of the housing 600 after being movably sleeved with the through hole.

[0045] In some embodiments, the number of teeth on the internal gear of the adjusting gear 410 ranges from 20 to 60, the number of light-shielding blades 420 ranges from 5 to 10, and the number of teeth on the external gears of each light-shielding blade 420 ranges from 5 to 15.

[0046] In some embodiments, the shape of the shading blade 420 can be fan-shaped, irregularly shaped arc, trapezoidal, or triangular. Regardless of the shape, the working edge consistency and movement without interference must be ensured.

[0047] When adjusting the aperture of the aperture adjustment assembly 400, the light-shielding blade 420 is always engaged with the internal teeth of the adjusting gear 410. The arc of the side of the light-shielding blade 420 closest to the adjusting gear 410 is approximately 360° / number of blades ± 5°. When the outer diameter of the aperture is 0mm, 10-14mm, 14-20mm, and 40mm, the counterclockwise rotation angle of the adjusting gear 410 is 0°, 120°, 240°, and 360°, respectively.

[0048] The spotlight assembly 500 includes a spotlight platform 520 and an LED light 510 mounted on top of it. The spotlight platform 520 is circular in shape and is formed by circumferentially splicing multiple aggregation platforms. The edge of each aggregation platform is fitted into the housing 600. An LED light 510 is installed at the center of each aggregation platform. The vertical distance from the center of the light source to the aperture plane is no more than 12cm, preferably 10cm. The centripetal convergence angle of the spotlight platform 520 is α. From the formula tanα = aperture radius / 10, we get α = arctan(aperture radius / 10).

[0049] In some embodiments, the top view of the focusing platform 520 is a regular polygon or a circle.

[0050] In some embodiments, the focusing platform 520 is a regular octagon, i.e., it is composed of eight triangular aggregation platforms, and each LED light source in the LED light source array is located at the geometric center of its corresponding triangular aggregation platform. The vertical distance from the center of the LED light source on the focusing platform to the aperture plane is 10cm. When the aperture is fully open, the diameter is 4cm. The centripetal convergence angle α of the focusing platform is ≤11.31°, so that the light can pass through the center of the aperture and onto the test object uniformly and focusedly, without light loss due to obstruction by the edge of the aperture. The wavelength of the LED light source is determined by the test object, and a light source suitable for the test object can be replaced in advance. With the aperture adjustment component, the aperture diameter can be flexibly adjusted while making the defects of the ceramic sheet clearly visible, thereby limiting the beam diameter and preventing strong light from shining directly into the eyes through the sample, thus avoiding eye fatigue.

[0051] In some embodiments, the edge of the focusing platform is provided with a groove for engaging with the housing 600.

[0052] The housing 600 is made of aluminum alloy, featuring a lightweight design that offers advantages such as light weight, sturdiness, and good heat dissipation. The power switch 700 is installed inside the housing 600.

[0053] The power switch 700 is the main switch for the LED light 510, used to control the power supply to the entire device, making it convenient for operators to turn the device on and off.

[0054] The power switch 700 is made of plastic or metal, preferably engineering plastic or stainless steel.

[0055] The working principle of a battery testing device is as follows:

[0056] Based on the testing requirements and actual site conditions, install and debug each component of the testing device appropriately. Place the testing device on a stable experimental platform, connect the power supply, and turn on the power switch 700 to ensure that the light evenly covers the entire platform 300. Before placing the ceramic disc, use a cleaning tool to clean the surface of the platform 300 to remove dust or impurities that may affect light transmission.

[0057] The observation hood 100 is tightly fitted above the platform 300. Its installation position and angle should ensure that the inspector can clearly observe the interior of the ceramic sheet from all directions. When installing the observation hood, care must be taken to ensure a tight seal to prevent external light from entering through gaps. The observation hood 100 is equipped with a light shield 210. Depending on the ambient lighting conditions, the light shield can be lowered to ensure the light in the observation area is as pure as possible, originating solely from the spotlight assembly 500. During actual testing, the operator gently places the solid electrolyte ceramic sheet to be observed on the platform 300, ensuring the sheet is stable. Then, the spotlight assembly 500 is turned on via the light source switch 700, allowing the light to penetrate vertically upwards through the ceramic sheet. The inspector carefully observes the optical phenomena inside the ceramic sheet through the observation hood 100. If defects such as cracks exist inside the ceramic sheet, under specific lighting conditions, these defects will exhibit optical characteristics distinctly different from the surrounding normal ceramic material, such as color changes, differences in brightness, or specific texture patterns, allowing for quick and accurate identification. Once a defective ceramic sheet is detected, it can be removed from the production process to prevent it from entering subsequent testing steps such as ionic conductivity. If the ceramic sheet exhibits uniform optical properties under light, it indicates that the internal quality of the ceramic sheet is good and it can proceed to subsequent testing steps such as ionic conductivity. In this way, not only can the waste of testing resources caused by testing defective ceramic sheets be avoided, but also the stability and reliability of the production line can be indirectly reflected by the timely detection and removal of unqualified products. If internal defects frequently occur in a batch of ceramic sheets, it may indicate problems with the cold pressing process parameters, high-temperature firing conditions, or raw material quality in the production line, thus prompting production personnel to check and adjust the production line in a timely manner to ensure the efficient and stable operation of the entire production process. Through repeated testing practices and statistical analysis of the test results of different batches of ceramic sheets, the parameter settings of the light source component, the surface treatment process of the carrier platform, and the design details of the observation cover and power supply (light intensity adjustment) switch can be further optimized to continuously improve the detection accuracy and reliability of the device of this invention, making it better serve the production quality control process of oxide solid electrolyte ceramic sheets.

[0058] It should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery testing device, characterized in that: The device includes a housing and, from top to bottom, a carrying platform, an aperture adjustment assembly, a spotlight assembly, and a light source switch. The light source switch controls the on / off state of the spotlight assembly. The housing is connected to the observation hood via a light-shielding assembly. The observation hood is circumferentially supported by light-shielding supports, which support the light-shielding hood of the light-shielding assembly. The light-shielding hood is used to block stray light from the external environment from entering the observation area.

2. The battery testing device according to claim 1, characterized in that: The observation cover is made of a curved structure using transparent optical material.

3. The battery testing device according to claim 2, characterized in that: The observation cover is hemispherical or semi-cylindrical.

4. The battery testing device according to claim 1, characterized in that: The number of support brackets must be at least 4.

5. The battery testing device according to claim 1, characterized in that: The center of the loading platform is provided with a limiting groove for supporting the object to be tested. The limiting groove is circular and its depth is less than the thickness of the object to be tested. Lugs for connecting the cover support are evenly distributed around the circumference of the loading platform. The cover support passes through the lugs and is fixedly connected to the shell.

6. The battery testing device according to claim 5, characterized in that: The limiting groove is a recess and its size matches the size of the object to be measured.

7. The battery testing device according to claim 1, characterized in that: The aperture adjustment assembly includes an adjustment gear and its internally circumferentially meshing light-shielding blades. The adjustment gear is embedded inside the housing, and the outer ring of the adjustment gear is located outside the housing. Each light-shielding blade has an arc-shaped groove and a connecting part. The connecting part is used to rotatably connect with the inside of the housing. Each arc-shaped groove also has a fixed post inside, which is fixedly connected to the inside of the housing, so that the arc-shaped groove can move along the fixed post under the drive of external force. The arc of the light-shielding blade on the side near the adjustment gear is ≈360° / number of light-shielding blades ±5°.

8. A battery testing device according to claim 7, characterized in that: The number of teeth on the internal gear can be adjusted to 20-60, the number of shading blades to 5-10, and the number of teeth on the external shading blades to 5-15.

9. A battery testing device according to claim 7, characterized in that: When the outer diameter of the aperture formed by the aperture adjustment assembly is 0mm, 10-14mm, 14-20mm, and 40mm, the counterclockwise rotation angle of the adjustment gear is 0°, 120°, 240°, and 360°, respectively.

10. A battery testing device according to claim 9, characterized in that: The spotlight assembly includes a spotlight platform and LED lights mounted on top of it. The spotlight platform is circular in shape and is formed by splicing multiple converging platforms around its circumference. The edge of each converging platform is fitted into the shell. An LED light is installed at the center of each converging platform, and the vertical distance from the center of the LED light source to the aperture plane is no more than 12cm. The centripetal convergence angle of the spotlight platform is α, where α = arctan(aperture radius / 10).

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