Short circuit test module and control method, system, device, medium and product thereof

Abstract

Embodiments of the present application provide a short circuit test module and a control method, system, device, medium and product thereof. The short circuit test module comprises a resistance measurement unit and a plurality of switch units. The first input end of the resistance measurement unit is electrically connected to the protection ground end of the tray. The tray comprises a plurality of heating pieces. The first end of each switch unit is connected to the corresponding heating piece, and the second end of each switch unit is connected to the second input end of the resistance measurement unit. After the switch unit is controlled to be in the conduction state, the short circuit characteristic between the corresponding heating piece and the tray can be determined based on the measurement result of the resistance measurement unit. The method can realize batch detection of the short circuit state of the tray and the heating piece through the cooperative design of hardware and software, significantly shorten the test time, and adapt to the automatic production process.

Description

Technical Field

[0001] This application relates to the field of battery baking technology, and in particular to a short-circuit test module and its control method, system, equipment, medium and product. Background Technology

[0002] In the field of new energy vehicle battery manufacturing, battery baking is one of the key processes. Its purpose is to remove moisture from the battery electrode materials through high temperatures, ensuring battery performance and safety. The baking process typically involves placing the battery in a specially designed metal tray, inside which are laid heating elements powered by 380V, which uniformly heat the battery.

[0003] Because there are potential risks such as cable damage and copper leakage in the heating element during the installation of the tray and heating element, if short circuit problems are not detected, direct power-on heating may cause the tray to leak electricity, damage the equipment, or even safety accidents.

[0004] The current short-circuit testing of baking trays and heating elements mainly adopts manual testing methods, which requires manual handling of trays, wiring, reading and recording. This is labor-intensive and inefficient. Test data must be recorded manually, which is prone to errors and cannot achieve batch analysis. Summary of the Invention

[0005] This application provides a short-circuit test module and its control method, system, equipment, medium and product to achieve fully automatic detection of short-circuit conditions of battery baking tray and heating element.

[0006] In a first aspect, embodiments of this application provide a short-circuit test module, including:

[0007] The resistance measurement unit 10 has a first input terminal 101 and a second input terminal 102. The first input terminal 101 is used to electrically connect to the protective ground terminal of the tray 20. The tray 20 includes a plurality of heating elements 30.

[0008] Multiple switching units 40, each switching unit 40 having a first end connected to a corresponding heating element 30 and a second end connected to the second input terminal 102;

[0009] When the switching unit 40 is in the ON state, the resistance measuring unit 10 forms a series measurement circuit with the corresponding heating element 30 and the tray 20. The measurement result of the resistance measuring unit 10 is used to determine the short-circuit characteristics between the corresponding heating element 30 and the tray 20.

[0010] In one possible implementation, it also includes:

[0011] A protective grounding terminal 50, one end of which is electrically connected to the terminal block of the tray 20, and the other end of which is electrically connected to the resistance measuring unit 10;

[0012] And / or,

[0013] Test terminal 60, one end of which is connected to each of the switch units 40, and the other end is electrically connected to the resistance measuring unit 10;

[0014] And / or, the resistance measurement unit 10 includes a resistance transmitter.

[0015] Secondly, embodiments of this application provide a control method for a short-circuit test module, including:

[0016] The switching state of the switching unit is controlled so that the resistance measuring unit forms a series measuring circuit with the corresponding heating element and the tray;

[0017] Based on the measurement results of the resistance measurement unit, the short-circuit characteristics between the corresponding heating element and the tray are determined.

[0018] In one possible implementation, determining the short-circuit characteristics between the heating element and the tray based on the measurement results of the resistance measuring unit includes:

[0019] When the measurement result is within the first resistance range, it is determined that the tray and the heating element are in a short circuit state;

[0020] When the measurement result is within the second resistance range, it is determined that the tray and the heating element are in normal condition, and the minimum value of the second resistance range is greater than the maximum value of the first resistance range.

[0021] In one possible implementation, the method further includes:

[0022] If the heating element corresponding to the short-circuit characteristic indication is in a short-circuit state, the heating element under test that is in a short-circuit state is marked.

[0023] Thirdly, embodiments of this application provide a control system, including: a memory and a processor;

[0024] The memory stores computer-executed instructions;

[0025] The processor executes computer execution instructions stored in the memory, causing the processor to perform any of the possible implementations of the second aspect above.

[0026] Fourthly, embodiments of this application provide an electronic device including the short-circuit test module described in any one of the first aspects, and / or the control system described in the third aspect.

[0027] In one possible implementation, the electronic device further includes at least one tray, the tray comprising a plurality of heating elements.

[0028] Fifthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement any possible implementation of the second aspect above.

[0029] Sixthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements any of the possible implementations of the second aspect above.

[0030] The short-circuit test module and its control method, system, device, medium, and product provided in this application include a resistance measurement unit and multiple switching units. The first input terminal of the resistance measurement unit is electrically connected to the protective ground terminal of the tray. The tray includes multiple heating elements. The first terminal of each switching unit is connected to the corresponding heating element, and the second terminal of each switching unit is connected to the second input terminal of the resistance measurement unit. After the control system controls the switching unit to be in the conducting state, it can determine the short-circuit characteristics between the corresponding heating element and the tray based on the measurement results of the resistance measurement unit. This method solves the technical problems of low efficiency, poor safety, and untraceable data in manual testing through the collaborative design of hardware and software. At the same time, it can be adapted to the automated process of short-circuit detection of the tray and heating elements, improving the detection efficiency. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0032] Figure 1 A schematic diagram of a short-circuit test scenario for existing trays and heating elements;

[0033] Figure 2 Schematic diagram of the short-circuit detection module provided in this application Figure 1 ;

[0034] Figure 3 Flowchart of the control method for the short-circuit test module provided in this application Figure 1 ;

[0035] Figure 4 Flowchart of the control method for the short-circuit test module provided in this application Figure 2 ;

[0036] Figure 5 A schematic diagram of the control system of the short-circuit test module provided in this application;

[0037] Figure 6 A schematic diagram of the control system provided in this application.

[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] In the field of new energy vehicle battery manufacturing, battery baking is a crucial process to ensure battery performance and safety. Battery baking is usually completed using automated baking equipment. Its core process includes: sending a metal tray containing the battery into a high-temperature oven, where heating elements arranged inside the tray evenly heat the battery to remove moisture and impurities from inside the battery.

[0041] In actual production, the installation of trays and heating elements requires a high degree of standardization. However, if the cables or the heating element itself are damaged, resulting in exposed copper wires, a short circuit may occur with the metal tray, potentially leading to electrical leakage, equipment damage, or even safety accidents. Therefore, short-circuit testing must be performed after the trays and heating elements are installed to ensure their electrical safety.

[0042] Figure 1 A schematic diagram of a short-circuit test scenario for existing trays and heating elements, such as... Figure 1 As shown. In existing technology, the main method for short-circuit testing of baking trays and heating elements is to manually measure the resistance between each terminal of the heating element and the protective earth (PE) of the tray after the tray and heating element are installed, and then determine whether there is a short circuit based on the resistance value. The test results need to be manually recorded, and qualified and abnormal trays are distinguished by markings. The problematic parts are then handled by maintenance personnel.

[0043] However, this process has significant problems: the trays are heavy, making them difficult to handle during batch testing of the baking equipment's trays and heating elements; manual measurement is prone to false positives or false negatives due to fatigue or negligence; and the testing is only performed once before the trays are placed into the baking equipment, which cannot cover the risk of secondary short circuits that may occur during handling or subsequent use. In addition, the oven has a large number of heating elements, and manual testing is time-consuming and inefficient, seriously affecting production rhythm and equipment safety.

[0044] To address the aforementioned issues, this application provides a short-circuit testing module and method. The short-circuit testing module includes a resistance measurement unit and a switching unit. The method controls the switching unit to connect the test circuit between the heating element under test and the tray protective grounding one by one. The resistance measurement unit collects the resistance value in the test circuit in real time and identifies the short-circuit state based on logical judgment. This solution overcomes the limitations of manual testing in the prior art and realizes the automation of the testing process and the real-time detection of anomalies.

[0045] This application can be applied to the battery baking process in battery manufacturing. In this scenario, the baking equipment needs to send a metal tray containing batteries into a high-temperature oven, where heating elements arranged inside the tray uniformly heat the batteries. In existing technologies, the baking process is highly automated, but short-circuit testing still relies on manual operation. This application can automate short-circuit testing by integrating a relay matrix, a resistance measurement module, and a logic judgment module into the baking equipment. This application is suitable for batch testing requirements with multiple trays and multiple heating elements, and requires no manual intervention in the testing process.

[0046] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0047] Figure 2 Schematic diagram of the short-circuit detection module provided in this application Figure 1 ,like Figure 2 As shown, the short-circuit detection module includes:

[0048] The resistance measurement unit 10 has a first input terminal 101 and a second input terminal 102. The first input terminal is used to be electrically connected to the protective ground terminal of the tray. The tray 20 includes a plurality of heating elements 30.

[0049] Understandably, the protective grounding terminal, also known as the PE terminal, is the safe connection point established between the tray 20 and the earth. Connecting the first input terminal 101 of the resistance measuring unit 10 to the protective grounding terminal can create a stable and reliable reference for the measurement process. In the measurement circuit, based on the protective grounding terminal, any abnormal resistance that may exist between the tray 20 and the heating element 30 or within the heating element 30 itself can be accurately measured.

[0050] Meanwhile, during the measurement process, electromagnetic interference and other disturbances may occur, which can affect the resistance measurement results, leading to inaccurate data and making it impossible to accurately determine whether a short circuit exists. The protective grounding terminal has excellent shielding and anti-interference capabilities. Connecting the first input terminal 101 to it introduces a stable, anti-interference reference potential to the resistance measurement unit 10. The resistance measurement unit 10 performs resistance measurements based on this reference potential, effectively eliminating the influence of external interference and making the measurement results more realistic and accurate.

[0051] The resistance measurement unit 10 can be a dedicated measurement circuit module built based on the bridge principle. It accurately measures the resistance value by constructing a balanced bridge and utilizing the relationship between the resistances of each bridge arm when the bridge is balanced.

[0052] One possible implementation is that the resistance measurement unit 10 includes a resistance transmitter.

[0053] Understandably, a resistance transmitter can convert the acquired resistance signal into a standard electrical signal output that is linearly related to the resistance value through isolation, amplification, and linearization processes. Standard electrical signals are less susceptible to interference during transmission. Converting the resistance value into a resistance signal ensures signal stability and accuracy, while also facilitating the integration, storage, and display of subsequent control systems, thereby improving the system's integration and flexibility.

[0054] In actual measurements, the resistance measurement range of the resistance transmitter can be determined based on the actual resistance of the heating element 30. This application does not limit its resistance measurement range.

[0055] Multiple switching units 40, each with its first end connected to a corresponding heating element 30 and its second end connected to a second input terminal 102.

[0056] Understandably, the switching unit 40 can be a relay, analog switch, etc. A relay is an electrical control device, commonly used in automatic control circuits. By controlling its switching, the circuit can be connected or disconnected. An analog switch is a three-terminal switching device that can realize the on / off transmission of analog signals under the control of digital signals, and has advantages such as fast switching speed and low loss.

[0057] like Figure 2 As shown, when performing a short-circuit test on the tray 20 and the heating element 30, multiple heating elements 30 in multiple trays 20 can be tested in batches. Figure 2 Only two trays 20 are shown in the schematic diagram, each tray 20 including three heating elements 30. In actual testing, the number of trays and heating elements will be determined according to the actual situation, and this application does not limit this. Furthermore, Figure 2 Only the series measurement circuits for heating elements labeled A and D are shown; the measurement circuits for the remaining heating elements 30 are not shown. Figure 2 As shown.

[0058] There are multiple heating elements 30 in a tray 20. By connecting the switching unit 40 to the heating elements 30 and the resistance measuring unit 10 respectively, it is easier to select the heating element 30 to be tested, and realize the short circuit detection of each heating element 30 one by one, avoiding simultaneous testing, which makes it impossible to accurately determine which heating element 30 has a short circuit problem.

[0059] When controlling the switching units to close and conduct sequentially, the control sequence can be a manually set test sequence, or it can be based on the arrangement of the tray and heating elements, or it can be a random selection of heating elements for testing. It is important to note that random testing should avoid missing heating elements and avoiding repeated testing of heating elements. This can be achieved by labeling and recording the heating elements for random testing. This application does not limit the test sequence for the heating elements.

[0060] When the switching unit 40 is in the conducting state, the resistance measuring unit 10 forms a series measurement circuit with the corresponding heating element 30 and tray 20. The measurement result of the resistance measuring unit 10 is used to determine the short-circuit characteristics between the corresponding heating element 30 and tray 20.

[0061] Understandably, during actual testing, the control system can close the switch unit 40 corresponding to the heating element 30 under test, putting it in a conductive state, while keeping other switch units 40 open. At this time, the resistance measuring unit 10, the heating element 30, and the tray 20 can form a series circuit, in which the resistance is equal to the sum of the resistances of each component. Current can flow sequentially through the resistance measuring unit 10, the heating element 30, and the tray 20.

[0062] The resistance measuring unit 10 can accurately obtain the total resistance value of the entire series circuit using its own measurement capabilities. When a short circuit occurs between the heating element 30 and the tray 20, the short circuit point is equivalent to forming a channel with extremely low resistance. This can change the resistance distribution of the entire series circuit, thus causing a significant change in the total resistance value. The total resistance value measured by the resistance measuring unit 10 is the main basis for judging the short circuit characteristics between the heating element 30 and the tray 20.

[0063] By comparing the measured resistance value with the resistance value under normal conditions, the control system can determine whether a short circuit exists. If the measured resistance value is much lower than the normal range, it may mean that a short circuit has occurred between the heating element 30 and the tray 20.

[0064] In one possible implementation, the aforementioned short-circuit detection module further includes a protective grounding terminal 50 and a test terminal 60. The series measurement circuit is composed of the protective grounding terminal 50, the test terminal 60, the tray 20, the heating element 30, and the switching unit 40 connected in series. Specifically:

[0065] One end of the protective grounding terminal 50 is electrically connected to the terminal block of the tray 20, and the other end is electrically connected to the resistance measuring unit 10. One end of the test terminal 60 is connected to each switch unit 40, and the other end is electrically connected to the resistance measuring unit 10.

[0066] Understandably, a terminal is an accessory used to achieve electrical connections, serving functions such as securing wires, facilitating insertion and removal, and ensuring good electrical contact. It can be a single metal piece or a component integrated into devices such as terminal blocks or terminal blocks, using screws, springs, or other methods to securely connect wires, thereby enabling stable and reliable transmission of current and signals between different circuits or electrical components.

[0067] In the short-circuit test of tray 20 and heating element 30, multiple trays 20 and multiple heating elements 30 can be tested at the same time. Through the protective grounding terminal 50, the terminals of each tray 20 can be connected together. At the same time, through the test terminal 60, the test lines of the heating element 30 can be connected together. This can build a standardized, orderly and safe measurement circuit, clarify the direction of wiring, and avoid interference between different circuits.

[0068] The protective grounding terminal 50 also serves a safety protection function. During testing, the tray 20 may become energized for various reasons (such as insulation damage, equipment failure, etc.). Connecting the terminals of the tray 20 to the protective grounding terminal 50 ensures that if the tray 20 leaks current, the current can be conducted to the ground through the protective grounding terminal 50, preventing electric shock accidents and protecting the lives of operators. Furthermore, this standardized connection method also helps prevent electrical fires and other safety accidents caused by short circuits and other faults.

[0069] The centralized connection method makes the structure of the entire measurement circuit clear and understandable. During subsequent equipment maintenance, repair, or troubleshooting, maintenance personnel can quickly identify the connection relationships between different components and accurately locate the problem. For example, if abnormal measurement results occur, maintenance personnel can determine whether the problem lies with tray 20, heating element 30, or the resistance measurement unit 10 itself based on the terminal connections, thus improving maintenance efficiency, reducing equipment downtime, and lowering maintenance costs.

[0070] The centralized connection method also allows for system expansion and upgrades. When the number of trays 20 or heating elements 30 needs to be changed, the new components can simply be connected to the corresponding terminals using the same connection method, without requiring large-scale rewiring and modification of the entire measurement circuit. This not only saves time and costs but also reduces the risk of introducing new problems due to wiring changes.

[0071] The short-circuit detection module provided in this application includes a resistance measurement unit and multiple switching units. The resistance measurement unit has a first input terminal and a second input terminal. The first input terminal is electrically connected to the protective grounding terminal of the tray. The tray includes multiple heating elements. The first terminal of each switching unit is connected to the corresponding heating element, and the second terminal of each switching unit is connected to the second input terminal. When the switching unit is in the ON state, the resistance measurement unit, the corresponding heating element, and the tray form a series measurement circuit. The measurement result of the resistance measurement unit is used to determine the short-circuit characteristics between the corresponding heating element and the tray. This module can achieve batch detection and classification management of the short-circuit state of the tray and heating elements, significantly shortening the testing time and adapting to automated production processes.

[0072] In some embodiments, to achieve automated detection by the short-circuit detection module, the short-circuit detection module can be connected to a control system. Specifically, for example... Figure 2 As shown, the control system can be connected to the resistance measurement unit in the short-circuit detection module.

[0073] Understandably, to automate short-circuit detection, improve efficiency and accuracy, and reduce errors caused by manual intervention, the short-circuit detection module can be connected to the control system. Internally, the resistance measurement unit within the short-circuit detection module acquires resistance data from the measurement circuit, which is crucial for determining the presence of a short circuit. Therefore, connecting to the resistance measurement unit within the short-circuit detection module allows the control system to automatically and in real-time acquire the resistance data and analyze it using pre-defined algorithms and logic.

[0074] Specifically, the control system can consist of a Programmable Logic Controller (PLC), a touchscreen user interface, and related electrical circuits and actuators. The control system's communication interface port can connect to the communication interface of a resistance measurement unit, such as a resistance transmitter, to acquire the data collected by the resistance transmitter. For communication, RS485 communication can be used, for example. RS485 is a widely used serial communication interface standard in industrial fields. It defines the electrical characteristics of data transmission between devices via differential signals, supporting long-distance, multi-device, and interference-resistant data communication.

[0075] After the resistance transmitter is connected to the measurement loop, the acquired resistance value data can be stored in a register, and then transmitted to the communication module of the control system through the communication interface. The control system, through control logic, requests to read the communication data frame based on the node address of the resistance transmitter and the resistance value register address, and then determines whether the resistance value is normal based on logic.

[0076] Figure 3 Flowchart of the control method for the short-circuit test module provided in this application Figure 1 ,like Figure 3 As shown, specifically, the control steps of the control system include:

[0077] S301: Controls the switching state of the control switch unit so that the resistance measuring unit forms a series measurement circuit with the corresponding heating element and tray.

[0078] Understandably, each heating element has its corresponding switching unit. During a short-circuit test of the heating element, the control system can close the corresponding switching unit, thus connecting the heating element and the resistance measuring unit. Simultaneously, since the tray's terminals are connected to the grounding terminal, which in turn is connected to the resistance measuring unit, and the other end of the resistance measuring unit is connected to the test terminal, which is then connected to the heating element via the switching unit, and the heating plate is placed in the tray, a complete series measurement circuit can be obtained when the switching unit closes and the circuit is open. In this measurement circuit, current can flow along a specific path. After the measurement circuit is open, the resistance measuring unit in the circuit can accurately measure the resistance value of the circuit.

[0079] S302: Based on the measurement results of the resistance measurement unit, determine the short-circuit characteristics between the corresponding heating element and the tray.

[0080] Understandably, after the resistance measurement unit measures the resistance value, different resistance values ​​correspond to different short-circuit conditions. For example, if the measured resistance value is extremely small, almost approaching zero, it indicates that there may be a direct short circuit between the heating element and the tray, indicating an abnormal conductive path between them. This situation requires immediate investigation and repair. If the measured resistance value is within the normal range, it indicates that the insulation performance between the heating element and the tray is good, there is no risk of short circuit, and subsequent battery baking operations can be safely carried out.

[0081] One possible implementation is to determine that the tray and the heating element are in a short-circuit state when the measurement result is within the first resistance range.

[0082] Understandably, when a circuit is short-circuited, the current bypasses the load and flows directly through the wire or short-circuit point to form a loop. At this time, the resistance of the short-circuited portion approaches zero, resulting in a significant reduction in the total resistance of the entire circuit. Therefore, the first resistance range is a relatively low resistance range.

[0083] For example, suppose the actual resistance of a heating element is 29Ω, and the resistance transmitter is selected with a measurement range of 0-2000Ω. When the measured resistance exceeds the range, the output data can be set to the maximum value of 65535Ω in the unsigned integer (UINT) type.

[0084] When the measurement result is 0Ω, it indicates a short circuit between the grounding terminal of the tray and the lead wire of the heating element. This means there is almost no resistance in the measurement circuit; the current does not follow the normal path through the heating element but instead forms a path with extremely low resistance in the loop on the right side of the heating element, bypassing the resistance of the heating element itself. This could be due to insulation damage or other issues with the heating element, causing it to be directly connected to the grounding part or other conductive parts. The resistance of the entire measurement circuit approaches zero. This situation indicates an abnormality in the heating element, and the specific location and cause of the short circuit need to be investigated.

[0085] Short circuits may be caused by, for example, damage to the insulation layer of the heating element, causing the metal part to come into contact with the tray, or damage to the cable, or the presence of conductive foreign objects (such as metal shavings or solder dross) on the surface of the tray.

[0086] When the resistance value is 29Ω, it indicates a short circuit between the grounding terminal of the tray and another lead of the heating element. This indicates an abnormality in the tray and the heating element, and the specific location and cause of the short circuit need to be investigated.

[0087] In this embodiment, when the heating element corresponding to the short-circuit characteristic indicator is in a short-circuit state, the heating element under test that is in a short-circuit state is marked.

[0088] Understandably, when a heating element under test is determined to be short-circuited, the control system can mark it, that is, attach a conspicuous warning label to the problematic heating element, allowing staff to identify the faulty component based on the equipment's display panel. In the battery baking production process, multiple stages and numerous personnel are involved. Marking short-circuited heating elements ensures that in subsequent operations, staff can immediately identify the short-circuit problem, preventing its use in normal production and effectively preventing safety accidents, thus ensuring the safety and stability of the entire production process.

[0089] When the measurement result is within the second resistance range, it is determined that the tray and heating element are in normal condition, and the minimum value of the second resistance range is greater than the maximum value of the first resistance range.

[0090] Under normal operating conditions, the resistance in the measurement circuit will be within the design range, with a relatively stable and high total resistance value. Therefore, the second resistance range is a relatively high resistance range. Within this range, the resistance is large enough that there are no abnormal conductive paths between the heating element and the tray, allowing current to flow through the heating element according to the expected path, thus achieving normal heating function. Simultaneously, the fact that the minimum value of the second resistance range is greater than the maximum value of the first resistance range ensures a clear distinction between the two ranges, avoiding misjudgments of short-circuit and normal states due to measurement errors or ambiguous boundary values.

[0091] Using the above data as an example, when the measured resistance value is 65535Ω, it means that the measured resistance exceeds the maximum range of 2000Ω that the resistance measuring unit can display. In other words, there is no abnormal conduction such as a short circuit in the measuring circuit where the heating element is located, and the current is difficult to pass through. The heating element and the measuring circuit have good insulation. The heating element itself does not have any faults that would cause the resistance to drop abnormally. Therefore, the heating element can be considered to be in normal condition.

[0092] In some embodiments, the short-circuit detection module described above can also be specifically integrated into an electronic device and connected to the control system of the electronic device to automate short-circuit detection. The electronic device is, for example, a baking device, which typically includes multiple trays, each of which may include multiple heating elements. Before baking a battery cell using the baking device, all heating elements in the baking device can be short-circuited to ensure the safe use of the baking device.

[0093] Figure 4 Flowchart of the control method for the short-circuit test module provided in this application Figure 2 ,like Figure 4 As shown below, taking the electronic device as the baking device and the control system of the baking device as the execution subject as an example, the specific implementation process of short circuit detection will be explained.

[0094] S401: Send multiple trays into the oven of the baking equipment, wherein each tray includes multiple heating elements to be tested;

[0095] S402: Controls the switch unit corresponding to the heating element under test to close, so that the heating element under test and the tray where the heating element is located are connected to the measurement circuit;

[0096] S403: Obtain the resistance value in the measurement circuit measured by the resistance measurement unit;

[0097] S404: Determine the short-circuit state of the heating element under test based on the resistance value;

[0098] S405: Controls the switching unit corresponding to the heating element under test to disconnect, thereby disconnecting the measurement circuit;

[0099] S406: Determine if there is an untested heating element to be tested. If yes, proceed to step S402; otherwise, proceed to step S407.

[0100] S407: Determine whether the short circuit status of all heating elements to be tested is normal. If yes, proceed to step S408; otherwise, proceed to step S409.

[0101] S408: Controls the baking equipment to power on and heat up, performing battery baking operations;

[0102] S409: Mark the heating element under test that is in an abnormal state and output the marking results.

[0103] The control method for the short-circuit test module provided in this embodiment is similar in implementation principle and technical effect to that of the aforementioned embodiments, and will not be described in detail here.

[0104] It is important to note that the baking equipment is used to dry and bake the batteries, and the insulation between the heating element and the tray determines the safety and stability of the baking equipment. In step S408, if any heating element experiences a short circuit or leakage with the tray, it means that the live part of that heating element has formed a conductive path with the grounded metal tray, which could lead to multiple safety and production risks.

[0105] On the one hand, leakage could electrify the casing of the baking equipment, posing a significant risk of electric shock to workers. On the other hand, short circuits or leakage could cause abnormal distribution of heating power, resulting in uncontrolled temperatures in some areas or insufficient heating in others, failing to ensure uniform baking of the batteries. This could also lead to thermal runaway of the batteries due to localized overheating, and even trigger a fire. Furthermore, malfunctioning heating elements will accelerate their own aging and damage, potentially expanding the scope of the fault and increasing maintenance costs and downtime.

[0106] Therefore, only by ensuring that each heating element is well insulated from the tray and in normal condition can electrical safety hazards be eliminated at the source and temperature uniformity during the baking process be guaranteed. Thus, the baking equipment must ensure that all heating elements are in normal working order before it can be started to bake the battery. If any heating element is detected to be abnormal, the control system can mark it and output the marking result to the personnel, prohibiting the baking equipment from starting and forcing repairs before it can be put back into use, thereby ensuring the safety of battery baking.

[0107] The marking results can be output in two ways: displaying them on the visual interface of the baking equipment, allowing operators to clearly see the heating elements and trays in abnormal states when controlling the equipment through the interface; or sending the marking results to the operators' mobile devices via email, SMS, or other means, ensuring that operators can promptly detect abnormalities in the heating elements and trays.

[0108] Figure 5 This is a schematic diagram of the control system of the short-circuit test module provided in this application, as shown below. Figure 5 As shown, the control system 50 of the short-circuit test module provided in this embodiment includes:

[0109] The processing module 501 is used to control the switching state of the switching unit so that the resistance measuring unit forms a series measuring circuit with the corresponding heating element and tray;

[0110] The determination module 502 is used to determine the short-circuit characteristics between the corresponding heating element and the tray based on the measurement results of the resistance measurement unit.

[0111] In one possible implementation, the determining module 502 is specifically used to determine that the tray and the heating element are in a short circuit state when the measurement result is within a first resistance range;

[0112] The determination module 502 is specifically used to determine that the tray and heating element are in normal condition when the measurement result is within the second resistance range, and the minimum value of the second resistance range is greater than the maximum value of the first resistance range.

[0113] In one possible implementation, the processing module 501 is further configured to mark the heating element under test that is in a short-circuit state when the heating element corresponding to the short-circuit characteristic indication is in a short-circuit state.

[0114] The control system of the short-circuit test module provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0115] Figure 6 A schematic diagram of the control system provided in this application. Figure 6 As shown, the control system 60 provided in this embodiment includes at least one processor 601 and a memory 602. Optionally, the control system 60 further includes a communication component 603. The processor 601, memory 602, and communication component 603 are connected via a bus 604.

[0116] In a specific implementation, at least one processor 601 executes computer execution instructions stored in memory 602, causing at least one processor 601 to perform the above-described method.

[0117] The specific implementation process of processor 601 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0118] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0119] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0120] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0121] This application also provides an electronic device, including the aforementioned short-circuit test module, and / or a control system. The electronic device may, for example, be a baking device.

[0122] In one possible implementation, the electronic device also includes at least one tray, which comprises multiple heating elements.

[0123] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0124] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0125] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0126] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0127] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0128] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0129] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0130] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0131] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0132] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A short-circuit test module, characterized in that, include: The resistance measurement unit (10) has a first input terminal (101) and a second input terminal (102). The first input terminal (101) is used to be electrically connected to the protective ground terminal of the tray (20). The tray (20) includes a plurality of heating elements (30). Multiple switching units (40), the first end of each switching unit (40) is connected to the corresponding heating element (30), and the second end of each switching unit (40) is connected to the second input terminal (102); When the switch unit (40) is in the on state, the resistance measuring unit (10) forms a series measurement circuit with the corresponding heating element (30) and the tray (20). The measurement result of the resistance measuring unit (10) is used to determine the short-circuit characteristics between the corresponding heating element (30) and the tray (20).

2. The short-circuit test module according to claim 1, characterized in that, Also includes: A protective grounding terminal (50) is provided, one end of which is electrically connected to the terminal block of the tray (20), and the other end is electrically connected to the resistance measuring unit (10). And / or, Test terminal (60), one end of which is connected to each of the switch units (40), and the other end is electrically connected to the resistance measuring unit (10); And / or, the resistance measurement unit (10) includes a resistance transmitter.

3. A control method for a short-circuit test module, characterized in that, The method for the short-circuit test module according to claim 1 or 2 includes: The switching state of the switching unit is controlled so that the resistance measuring unit forms a series measuring circuit with the corresponding heating element and the tray; Based on the measurement results of the resistance measurement unit, the short-circuit characteristics between the corresponding heating element and the tray are determined.

4. The method according to claim 3, characterized in that, The determination of the short-circuit characteristics between the heating element and the tray based on the measurement results of the resistance measurement unit includes: When the measurement result is within the first resistance range, it is determined that the tray and the heating element are in a short circuit state; When the measurement result is within the second resistance range, it is determined that the tray and the heating element are in normal condition, and the minimum value of the second resistance range is greater than the maximum value of the first resistance range.

5. The method according to claim 3, characterized in that, The method further includes: If the heating element corresponding to the short-circuit characteristic indication is in a short-circuit state, the heating element under test that is in a short-circuit state is marked.

6. A control system, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the control system to perform the method as described in any one of claims 3-5.

7. An electronic device, characterized in that, It includes the short-circuit test module according to any one of claims 1-2, and / or the control system according to claim 6.

8. The electronic device according to claim 7, characterized in that, The electronic device also includes at least one tray, which includes multiple heating elements.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the methods described in claims 3-5.

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method described in claims 3-5.

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