Portable battery detection device

Abstract

The utility model relates to the technical field of battery detection, in particular to a portable battery detection device. The device comprises a terminal processor, a shell, and a battery comprehensive tester, a thermal infrared imager, a high-resolution industrial camera, an ultrasonic assembly and a power supply device which are arranged in the shell, the positive electrode of the battery comprehensive tester is connected with the positive electrode of the waste battery placed in the shell, and the negative electrode of the battery comprehensive tester is connected with the negative electrode of the waste battery; the battery comprehensive tester is connected with the terminal processor through a first data transmission line; the thermal infrared imager is connected with the terminal processor through a second data transmission line; the high-resolution industrial camera is connected with the terminal processor through a third data transmission line; the ultrasonic assembly is connected with the terminal processor through a fourth data transmission line; the battery comprehensive tester, the thermal infrared imager, the high-resolution industrial camera, the ultrasonic assembly and the waste battery are all connected with the power supply device. According to the utility model, the waste batteries can be efficiently, comprehensively and accurately detected and sorted.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a portable battery testing device. Background Technology

[0002] With the continuous growth in sales of new energy vehicles, the demand for power batteries is also increasing, leading to a rapid increase in the amount of waste batteries. Therefore, the testing and sorting of waste batteries (such as waste lithium batteries) to classify and grade them is of significant economic importance for battery recycling companies to further recycle them.

[0003] However, existing technologies for detecting and sorting used batteries (such as used lithium batteries) mostly employ a complete charge-discharge cycle approach for capacitance level detection, which requires charging and discharging each battery for 7 to 8 hours. Therefore, this approach not only suffers from time and energy consumption issues but also high equipment costs. Furthermore, this approach only detects the capacitance level of a single used battery, resulting in a limited perspective and making it prone to detection errors.

[0004] In summary, there is a need to provide a portable battery testing device to solve the problems of time-consuming and energy-intensive processes, limited judgment angles, and high equipment costs associated with the existing complete charge-discharge cycle scheme. Utility Model Content

[0005] The purpose of this utility model is to provide a portable battery testing device, the specific technical solution of which is as follows:

[0006] A portable battery testing device includes a terminal processor, a housing, and a battery comprehensive tester, an infrared thermal imager, a high-resolution industrial camera, an ultrasonic component, and a power supply disposed within the housing.

[0007] The positive terminal of the battery comprehensive tester is connected to the positive terminal of the used battery placed inside the casing, and its negative terminal is connected to the negative terminal of the used battery; the battery comprehensive tester is connected to the terminal processor through a first data transmission line;

[0008] The infrared thermal imager is connected to the terminal processor via a second data transmission line;

[0009] The high-resolution industrial camera is connected to the terminal processor via a third data transmission line.

[0010] The ultrasound component is connected to the terminal processor via a fourth data transmission line;

[0011] The battery comprehensive tester, the infrared thermal imager, the high-resolution industrial camera, the ultrasonic component, and the waste battery are all connected to the power supply.

[0012] Optionally, the ultrasonic component includes an ultrasonic thickness gauge and an ultrasonic probe; the ultrasonic thickness gauge is disposed inside the housing and is connected to the ultrasonic probe, the power supply and the terminal processor respectively; a slide rail for moving the ultrasonic probe is provided on the side wall of the housing; the slide rail is correspondingly disposed to the waste battery.

[0013] Optionally, the slide rails are provided on one side wall and the corresponding two side walls of the housing.

[0014] Optionally, the ultrasound assembly further includes a drive unit for driving the ultrasound probe to move; the drive unit is disposed on the housing and its drive end is connected to the ultrasound probe; the drive unit is connected to the power supply.

[0015] Optionally, the portable battery testing device further includes a supplementary light, which is disposed inside the housing.

[0016] Optionally, the portable battery testing device further includes a side door located at one end of the housing; the side door is hinged to the housing.

[0017] Optionally, the portable battery testing device also includes a wire outlet hole provided on the housing.

[0018] Optionally, the thickness of the housing is 0.5 to 2.5 mm.

[0019] Optionally, the portable battery testing device also includes an insulating pad disposed within the housing and located on its bottom.

[0020] Optionally, the portable battery testing device further includes a first start / stop button, a second start / stop button, a third start / stop button, a fourth start / stop button, and a fifth start / stop button disposed on the outside of the housing; the first start / stop button is connected to the battery comprehensive tester; the second start / stop button is connected to the infrared thermal imager; the third start / stop button is connected to the high-resolution industrial camera; the fourth start / stop button is connected to the ultrasonic thickness gauge; and the fifth start / stop button is connected to the driving component.

[0021] The application of the technical solution of this utility model has at least the following beneficial effects:

[0022] This utility model provides a portable battery testing device capable of efficiently, comprehensively, and accurately testing and sorting used batteries within 10 minutes. It solves the problems of time-consuming and energy-intensive processes and errors caused by a single judgment angle in existing technologies using complete charge-discharge cycles. Specifically, it employs a battery comprehensive tester, an infrared thermal imager, a high-resolution industrial camera, and an ultrasonic component to simultaneously perform multi-faceted comprehensive testing of used batteries, ensuring efficient, comprehensive, and accurate testing and sorting. A power supply is used to power the battery comprehensive tester, infrared thermal imager, high-resolution industrial camera, and ultrasonic component, and also to charge and discharge the used batteries. The battery comprehensive tester measures the voltage, internal resistance, and capacitance of the used batteries and transmits the measured data to a terminal processor via a first data transmission line. After processing by the terminal processor, the remaining capacity, self-discharge characteristics, and aging degree of the used batteries are evaluated. The infrared thermal imager measures the temperature change data of the used batteries in real time during the charge-discharge process and records the temperature changes. Data is transmitted to the terminal processor via the second data transmission line. After processing by the terminal processor, the internal heat loss characteristics and thermal stability of the waste battery are quantified. A high-resolution industrial camera is used to capture images of the waste battery's appearance, which are then transmitted to the terminal processor via the third data transmission line. After processing by the terminal processor, abnormal information such as battery casing deformation, bulging, and leakage is identified. An ultrasonic component is used to obtain the internal structure of the waste battery through ultrasonic scanning, acquiring ultrasonic signals. These ultrasonic signals are transmitted to the terminal processor via the fourth data transmission line. After processing by the terminal processor, the degree of internal physical damage and aging of the waste battery is obtained. After the comprehensive testing is completed, the waste batteries are removed from their casings according to the sorting results and reused at the appropriate level. Furthermore, the portable battery testing device provided by this invention has the advantage of low cost, solving the problem of high equipment cost associated with existing technologies using complete charge-discharge cycle schemes.

[0023] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of a portable battery testing device in one embodiment;

[0026] Figure 2This is a three-dimensional structural schematic diagram of a portable battery detection device from another perspective in the embodiment;

[0027] Figure 3 yes Figure 1 Front view of the center-opening door when closed;

[0028] Figure 4 yes Figure 1 Left view of the center-opening door when closed;

[0029] Figure 5 yes Figure 1 Top view of the center-opening door when closed;

[0030] The components include: 1. Housing; 1.1. Slide rail; 1.2. Side door; 1.3. Cable outlet; 2. Battery comprehensive tester; 3. Infrared thermal imager; 4. High-resolution industrial camera; 5. Power supply; 6. Ultrasonic thickness gauge; 7. Fill light. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0032] Example:

[0033] See Figures 1-5 A portable battery testing device includes a terminal processor (not shown in the figure, the terminal processor is specifically a computer), a housing 1 and a battery comprehensive tester 2, an infrared thermal imager 3, a high-resolution industrial camera 4 (specifically a 4K high-resolution industrial camera), an ultrasonic component and a power supply 5 disposed in the housing 1.

[0034] The positive terminal of the battery comprehensive tester 2 is connected to the positive terminal of the waste battery placed inside the housing 1, and its negative terminal is connected to the negative terminal of the waste battery; the battery comprehensive tester 2 is connected to the terminal processor through a first data transmission line (not shown in the figure);

[0035] The infrared thermal imager 3 is connected to the terminal processor via a second data transmission line (not shown in the figure);

[0036] The high-resolution industrial camera 4 is magnetically mounted on the top of the housing 1 and connected to the terminal processor via a third data transmission line (not shown in the figure).

[0037] The ultrasound component is connected to the terminal processor via a fourth data transmission line (not shown in the figure);

[0038] The battery comprehensive tester 2, the infrared thermal imager 3, the high-resolution industrial camera 4, the ultrasonic component, and the waste battery are all connected to the power supply 5.

[0039] The ultrasonic component includes an ultrasonic thickness gauge 6 and an ultrasonic probe (not shown in the figure); the ultrasonic thickness gauge 6 is magnetically attached to the top of the housing 1 and is connected to the ultrasonic probe, the power supply 5 and the terminal processor respectively; a slide rail 1.1 for moving the ultrasonic probe is provided on the side wall of the housing 1; the slide rail 1.1 is correspondingly provided to the waste battery.

[0040] The slide rail 1.1 is provided on one side wall and on the corresponding two side walls of the housing 1.

[0041] The ultrasound assembly also includes a drive unit (not shown in the figure, the drive unit may be an electric push rod) for driving the ultrasound probe to move; the drive unit is disposed on the housing 1 and its drive end is connected to the ultrasound probe; the drive unit is connected to the power supply 5.

[0042] The portable battery testing device also includes a supplementary light 7, which is magnetically mounted on the top of the housing 1 to improve the accuracy of the high-resolution industrial camera 4 in capturing images of the appearance of used batteries.

[0043] The portable battery testing device also includes a side door 1.2 located at one end of the housing 1; the side door 1.2 is hinged to the housing 1 to facilitate the handling of used batteries.

[0044] The portable battery testing device also includes a wire outlet hole 1.3 provided on the housing 1, which facilitates the connection of the first data transmission line to the fourth data transmission line through the wire outlet hole 1.3 to the terminal processor.

[0045] The shell 1 is 1mm thick, making it lightweight and easy to carry.

[0046] The portable battery testing device also includes an insulating pad (specifically a rubber insulating pad with a thickness of 3mm; not shown in the figure) disposed inside the housing 1 and located at its bottom, to ensure the safety of the charging and discharging process of the used battery.

[0047] The portable battery testing device further includes a first start / stop button (not shown in the figure), a second start / stop button (not shown in the figure), a third start / stop button (not shown in the figure), a fourth start / stop button (not shown in the figure), and a fifth start / stop button (not shown in the figure) disposed on the outside of the housing 1; the first start / stop button is connected to the battery comprehensive tester 2; the second start / stop button is connected to the infrared thermal imager 3; the third start / stop button is connected to the high-resolution industrial camera 4; the fourth start / stop button is connected to the ultrasonic thickness gauge 6; and the fifth start / stop button is connected to the driving component.

[0048] The operation process of the portable battery testing device is as follows:

[0049] First, open the side door 1.2 and put the used battery into the housing 1; connect the positive terminal of the battery comprehensive tester 2 to the positive terminal of the used battery (such as a used lithium battery), and connect its negative terminal to the negative terminal of the used battery; close the side door 1.2.

[0050] Secondly, a comprehensive battery tester 2, an infrared thermal imager 3, a high-resolution industrial camera 4, and an ultrasonic component are used to simultaneously conduct multi-faceted comprehensive testing of waste batteries, ensuring efficient, comprehensive, and accurate testing and sorting of waste batteries within 10 minutes.

[0051] Specifically, power supply 5 is used to power battery comprehensive tester 2, infrared thermal imager 3, high-resolution industrial camera 4 and ultrasonic components, and power supply 5 is also used for charging and discharging waste batteries; battery comprehensive tester 2 is started by the first start / stop button to test the voltage, internal resistance and capacitance data of waste batteries, and the measured data is transmitted to the terminal processor via the first data transmission line; after processing by the terminal processor, the remaining capacity, self-discharge characteristics and aging degree of waste batteries are evaluated.

[0052] The infrared thermal imager 3 is activated by the second start / stop button to test the temperature change data of the waste battery in real time during the charging and discharging operation, and the temperature change data is transmitted to the terminal processor via the second data transmission line; after processing by the terminal processor, the internal heat loss characteristics and thermal stability of the waste battery are quantified.

[0053] The high-resolution industrial camera 4 is activated by the third start / stop button to take pictures and obtain images of the appearance of the waste battery. The images are then transmitted to the terminal processor via the third data transmission line. After processing by the terminal processor, abnormal information such as deformation, bulging, and leakage of the waste battery casing is identified and obtained.

[0054] The ultrasonic thickness gauge 6 is started by pressing the fourth start / stop button, and the ultrasonic probe is moved on the slide rail 1.1 by pressing the fifth start / stop button. The internal structure of the waste battery is obtained by ultrasonic scanning (specifically, 5 test points are selected for the waste battery along the length of the slide rail 1.1), and ultrasonic signals are acquired. The ultrasonic signals are transmitted to the terminal processor via the fourth data transmission line. After processing by the terminal processor, the degree of physical damage and aging of the waste battery is obtained.

[0055] Finally, after the comprehensive testing is completed, turn off the first to fifth start / stop buttons, shut off the power supply 5, and remove the waste batteries from the casing 1 according to the sorting results for recycling at the corresponding level.

[0056] It should be noted that the terminal processor in this embodiment, through the integration of multiple intelligent algorithms from existing technologies, coordinates with the battery comprehensive tester 2, infrared thermal imager 3, high-resolution industrial camera 4, and ultrasonic thickness gauge 6 to achieve precise sorting of waste batteries. Specifically:

[0057] For the battery comprehensive tester 2, the existing Kelvin four-wire method needs to be built into the terminal processor, and combined with the existing standard state of charge (SOC) voltage curve, the remaining capacity and self-discharge characteristics of the waste battery can be evaluated; by building the existing internal resistance change model into the terminal processor, the aging degree of the waste battery can be evaluated.

[0058] For the infrared thermal imager 3, a convolutional neural network (CNN) based on existing technology needs to be built into the terminal processor to analyze temperature change data and then quantify the internal resistance and heat loss characteristics and thermal stability of the waste battery.

[0059] For the high-resolution industrial camera 4, the improved YOLOv7 algorithm in the existing technology needs to be built into the terminal processor to obtain abnormal information such as deformation, bulging and leakage of waste battery shells by real-time recognition of the appearance image of waste batteries through the target detection and classification network.

[0060] For the ultrasonic thickness gauge 6, the existing support vector machine (SVM) and wavelet transform algorithm needs to be built into the terminal processor to extract features such as sound velocity and attenuation coefficient in the ultrasonic signal, and to invert the degree of internal physical damage and aging of the waste battery.

[0061] Specifically, the principal component analysis (PCA) method, a method already known in the technology, is used in the terminal processor to perform dimensionality reduction processing on the data features transmitted by the battery comprehensive tester 2, infrared thermal imager 3, high-resolution industrial camera 4, and ultrasonic thickness gauge 6. This involves dimensionality reduction of the four-dimensional features of electricity, heat, light, and sound. The feature-level fusion is then performed by combining the CNN-LSTM hybrid network, a method already known in the technology, which is built into the terminal processor. Through end-to-end training and optimization prediction, the sorting of waste batteries can be achieved in minutes.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable battery testing device, characterized in that, Includes a terminal processor, a housing (1), and a battery integrated tester (2), an infrared thermal imager (3), a high-resolution industrial camera (4), an ultrasonic component, and a power supply (5) disposed within the housing (1); The positive terminal of the battery comprehensive tester (2) is connected to the positive terminal of the waste battery placed in the housing (1), and its negative terminal is connected to the negative terminal of the waste battery; the battery comprehensive tester (2) is connected to the terminal processor through the first data transmission line; The infrared thermal imager (3) is connected to the terminal processor via a second data transmission line; The high-resolution industrial camera (4) is connected to the terminal processor via a third data transmission line; The ultrasound component is connected to the terminal processor via a fourth data transmission line; The battery integrated tester (2), the infrared thermal imager (3), the high-resolution industrial camera (4), the ultrasonic component, and the waste battery are all connected to the power supply (5).

2. The portable battery testing device according to claim 1, characterized in that, The ultrasonic component includes an ultrasonic thickness gauge (6) and an ultrasonic probe; the ultrasonic thickness gauge (6) is disposed inside the housing (1) and is connected to the ultrasonic probe, the power supply (5) and the terminal processor respectively; a slide rail (1.1) for moving the ultrasonic probe is provided on the side wall of the housing (1); the slide rail (1.1) is correspondingly provided with the waste battery.

3. The portable battery testing device according to claim 2, characterized in that, The slide rail (1.1) is provided on one side wall and on the corresponding two side walls of the housing (1).

4. The portable battery testing device according to claim 2, characterized in that, The ultrasound assembly also includes a drive unit for driving the ultrasound probe to move; the drive unit is disposed on the housing (1) and its drive end is connected to the ultrasound probe; the drive unit is connected to the power supply (5).

5. The portable battery testing device according to claim 4, characterized in that, It also includes a fill light (7), which is disposed inside the housing (1).

6. The portable battery testing device according to claim 4, characterized in that, It also includes a side door (1.2) disposed at one end of the housing (1); the side door (1.2) is hinged to the housing (1).

7. The portable battery testing device according to claim 4, characterized in that, It also includes a wire outlet hole (1.3) provided on the housing (1).

8. The portable battery testing device according to claim 4, characterized in that, The thickness of the shell (1) is 0.5 to 2.5 mm.

9. The portable battery testing device according to claim 8, characterized in that, It also includes an insulating pad disposed inside the housing (1) and located on its bottom.

10. The portable battery testing device according to any one of claims 4 to 9, characterized in that, It also includes a first start / stop button, a second start / stop button, a third start / stop button, a fourth start / stop button, and a fifth start / stop button disposed outside the housing (1); the first start / stop button is connected to the battery integrated tester (2); the second start / stop button is connected to the infrared thermal imager (3); the third start / stop button is connected to the high-resolution industrial camera (4); the fourth start / stop button is connected to the ultrasonic thickness gauge (6); and the fifth start / stop button is connected to the drive unit.

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