Qualitative and quantitative calibration device and method for smoke and gas of battery composite detector

Abstract

The invention discloses a qualitative and quantitative calibration device and method for smoke and gas of a battery composite detector. The qualitative and quantitative calibration device comprises a cabinet for accommodating a gas generating device and an upper computer, the sealing test box is used for forming a sealing test environment for gas or smoke generated by the gas generation device, and the test drawer is used for feeding a placed test product into the sealing test environment and carrying out qualitative or quantitative calibration test on the test product; wherein a test system is configured in the upper computer, data interaction and analysis in the test process are completed by upper computer software, test data are stored on the upper computer, and a test result is displayed on a display screen of the upper computer in real time. According to the device, qualitative detection of smoke and gas can be achieved, meanwhile, quantitative calibration can be conducted on smoke and carbon monoxide characteristic quantity in composite detection, one-time screening and removing of composite sensor functions are achieved, the detection time is greatly shortened, and the detection efficiency of batch production of batch composite detectors is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of qualitative and quantitative calibration of battery composite detectors, and in particular to a device and method for qualitative and quantitative calibration of smoke and gas of a battery composite detector. Background Art

[0002] The current field of battery safety monitoring technology is focused on the calibration and testing of composite detectors (integrated smoke and gas sensors) in power batteries and energy storage battery systems. With the widespread application of lithium-ion batteries in new energy vehicles, energy storage power stations, and other fields, safety incidents caused by thermal runaway are becoming more frequent (e.g., nearly 10,000 incidents worldwide between 2010 and 2024), creating an urgent need for highly reliable safety monitoring devices.

[0003] Existing technologies and their drawbacks: 1) Existing technologies mostly use discrete detection tooling, meaning smoke and gas (such as CO, H2) sensors need to be calibrated separately, resulting in long detection cycles and low efficiency. 2) Due to the single function, it cannot support the simultaneous calibration of multiple parameters of composite detectors, affecting production consistency. 3) Insufficient calibration accuracy and uneven gas distribution (such as smoke precipitation and gas drift) lead to concentration calibration deviations. 4) Harmful gases (such as CO) may leak during the calibration process, threatening the safety of operators and posing a safety risk.

[0004] For example, the invention application with application publication number CN115728288A discloses a detection system for a composite detector, wherein the composite detector is capable of measuring detection data. By comparing and analyzing the detection data of a laser Raman spectrometer with the detection data of the composite detector, the composite detector is calibrated and qualitative and quantitative test results are obtained. However, this solution also has the following problems: it is not suitable for the PCB board of a battery composite detector, the operation is complicated, and a professional is required to operate the laser Raman spectrometer, which increases labor costs. In addition, when calibrating the composite detector, this solution is difficult to achieve multi-parameter simultaneous calibration due to the separation of the smoke and gas calibration steps, which affects the calibration efficiency and accuracy.

[0005] Therefore, there is an urgent need for a technical solution that can overcome the above-mentioned defects and achieve efficient, accurate and safe calibration of composite detectors. Summary of the Invention

[0006] In view of the above-mentioned problems, the purpose of the present invention is to provide a device and method for qualitative and quantitative calibration of smoke and gas in a battery composite detector, so as to realize a technical solution for efficient, accurate and safe calibration of the composite detector.

[0007] The purpose of the present invention can be achieved by the following technical solution: A device for qualitative and quantitative calibration of smoke and gas of a battery composite detector, comprising:

[0008] Cabinet, used to accommodate the gas generating device and the host computer;

[0009] Sealed test box, which forms a sealed test environment for the gas or smoke generated by the gas generating device;

[0010] A test drawer is used to send the placed test products into a sealed test environment and perform qualitative or quantitative calibration tests on the test products;

[0011] Among them, the host computer is equipped with a test system. The data interaction and analysis during the test are completed by the host computer software. The test data is saved on the host computer, and the test results are displayed in real time on the host computer display.

[0012] Optionally, it also includes:

[0013] The photo recognition device is used to scan the QR code of the test product placed in the test drawer to identify the product identity.

[0014] Optionally, the sealed test box adopts a fully sealed design, with sealing strips installed at the air inlets and outlets, and smoke sensors and carbon monoxide sensors installed at leak-prone points and key locations of the sealed test box.

[0015] Optionally, an air circulation duct is used in the sealed test box to disperse and fully stir the test gas or smoke.

[0016] Optionally, the gas generating device includes: an wormwood smoke generating box, an aerosol generator and a carbon monoxide gas cylinder module.

[0017] Optionally, the sealed test box is equipped with a transmission type smoke concentration detector.

[0018] Optionally, the air outlet of the sealed test box is connected to an exhaust pipe, and a one-way air valve is provided on the exhaust; the mugwort smoke generating box is connected to the exhaust pipe through a connecting pipe, and a one-way air valve is provided on the connecting pipe.

[0019] A method for qualitative and quantitative calibration of smoke and gas in a battery composite detector, comprising the following steps:

[0020] S1. Select the detection mode in the test system;

[0021] S2. Identify the product identity and place the test product into the sealed test box and power it on.

[0022] S3, detect the working current, automatically start the encoding function, and read the product software version number;

[0023] S4. Relying on the gas or smoke generated by the gas generating device, the gas or smoke is dispersed and fully stirred;

[0024] S5. Perform qualitative testing or quantitative calibration on the product composite detector according to the detection mode, and store and display it on the host computer;

[0025] S6. After the sealed test box is exhausted and the internal gas reaches the safety standard, unlock the test box;

[0026] S7. Take out the tested products and put them into the OK or NG product bin according to the corresponding status prompted by the system.

[0027] Optionally, perform qualitative testing on the product's composite detector, including: testing the product's sleep and wake-up functions, testing the product's fire extinguishing connection and feedback and trigger functions, testing the product's smoke, VOC, temperature or CO sensor sensitivity, and completing the overall qualitative testing.

[0028] Optionally, the product composite detector is quantitatively calibrated, including smoke calibration and CO calibration, including: opening the gas intake, turning on the circulation fan, and starting the calibration sensor to detect. After the calibration sensor reaches a predetermined value, the intake valve is closed, and the circulation fan rotates slowly and evenly to allow the smoke in the box to circulate fully. When the calibration sensor detection value reaches a relatively stable state, the detection value of each product is compared with the calibration sensor detection value, and the difference is saved in the detection record. The detection system distinguishes the accuracy level of each product according to the preset threshold and completes the calibration.

[0029] Beneficial effects of the present invention:

[0030] 1. The device of the present invention can realize the overall qualitative detection of characteristic quantities such as carbon monoxide, smoke, temperature, and VOC. At the same time, by integrating multiple types of standard gas sources such as aerosol and carbon monoxide and smoke sources, it can quantitatively calibrate the characteristic quantities of smoke and carbon monoxide in composite detection, realizing the one-time screening and elimination of composite sensor functions, greatly shortening the detection time and improving the detection efficiency of batch production of composite detectors.

[0031] 2. The device of this invention not only performs qualitative and quantitative calibration of smoke and gas, but also covers other common functional tests of composite detectors, such as power-on current, automatic encoding, sleep and wake-up, fire extinguishing output, and feedback function testing. This multifunctional integrated design avoids the functional limitations of traditional discrete testing, making testing more comprehensive and accurate, greatly improving the functional testing level of composite detectors during production, and realizing multifunctional integrated testing.

[0032] 3. The sealed test box of the present invention adopts a fully sealed design. Sealing strips are installed on all air inlets and outlets. Smoke sensors and carbon monoxide sensors are installed inside the equipment, at leak-prone points and key locations. After the test is completed, the door can only be opened after confirming that there is no harmful gas in the box. This effectively prevents harmful gases from harming operators and ensures the safety of the testing process.

[0033] 4. The air circulation duct is used between the sealed boxes of the present invention to disperse and fully stir the test medium gas or smoke, which can effectively prevent the calibration concentration from deviating from the preset value due to smoke precipitation and gas drifting, making the smoke and gas concentration in the box more uniform and stable, thereby improving the calibration accuracy.

[0034] 5. The data interaction and analysis in the test process of the present invention are completed by dedicated host computer software. All test data are saved on the computer, and the test results are displayed on the display in real time. They can also be uploaded to MES as needed, which facilitates the management and traceability of test data and improves the efficiency and accuracy of production management. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the appearance structure of the qualitative and quantitative calibration device of the present invention;

[0036] Figure 2 Schematic diagram of the internal perspective structure of the qualitative and quantitative calibration device of the present invention;

[0037] Figure 3 This is a schematic diagram of the internal perspective structure of the sealed test box of the present invention;

[0038] Figure 4 This is a schematic diagram of the internal perspective structure of the back of the qualitative and quantitative calibration device of the present invention;

[0039] Figure 5 Schematic diagram of the simulation of gas stirring inside the qualitative and quantitative calibration device of the present invention.

[0040] 100, cabinet; 110, wormwood smoke generating box; 120, aerosol generator; 130, carbon monoxide gas cylinder module; 140, side door;

[0041] 200, sealed test chamber; 210, transmission type smoke concentration detector; 220, exhaust pipe; 230, connecting pipe; 240, air circulation duct; 250, circulation fan;

[0042] 300, test drawer; 310, product fixture;

[0043] 400, photo recognition device; 410, product camera; 420, fill light; 430, safety light barrier;

[0044] 500, host computer; 510, display screen. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] Example 1:

[0047] like Figure 1 As shown, the present invention discloses a qualitative and quantitative calibration device for smoke and gas of a battery composite detector, which includes components such as a cabinet 100, a sealed test box 200, and a test drawer 300.

[0048] The cabinet 100 is used to accommodate the gas generating device and the host computer; Figure 2 As shown, the cabinet 100 is rectangular and serves as the base of the sealed test box 200. The cabinet 100 is provided with a side door 140. The space inside the cabinet 100 is used to set up components such as the mugwort smoke generating box 110, the aerosol generator 120, the carbon monoxide gas cylinder module 130 and the host computer 500.

[0049] The sealed test box 200 is arranged above the cabinet 100, with the cabinet 100 as a base. The sealed test box 200 is provided with components such as a calibration sensor module and air inlet and outlet sealing modules.

[0050] like Figure 3 As shown, the sealed test box 200 uses an air circulation duct 240, and a circulation fan 250 is provided on the air circulation duct 240. The circulation fan 250 can drive the gas or smoke in the air circulation duct 240 to circulate, thereby breaking up the test gas or smoke and fully stirring it. Figure 5 As shown in the simulation diagram, it can effectively prevent the calibrated concentration from deviating from the preset value due to smoke precipitation and gas drifting.

[0051] The sealed test box 200 forms a sealed test environment for the gas or smoke generated by the gas generating device; the sealed test box 200 adopts a fully sealed design, and all air inlets and outlets are installed with sealing strips, which can be opened when needed and closed when not needed. Smoke sensors and carbon monoxide sensors are installed inside the sealed test box 200 and at leak-prone points and key locations. After the test is completed, it is necessary to confirm that there is no harmful gas in the box before the hatch can be opened for entry and exit operations to prevent endangering the personal safety of operators.

[0052] like Figure 4As shown, the air outlet of sealed test chamber 200 is connected to an exhaust pipe 220 equipped with a one-way valve and an exhaust fan. After the test is completed, the exhaust passage of exhaust pipe 220 is opened to begin exhausting until the internal sensor detects values ​​that meet safety standards, at which point the exhaust is closed. The air inlet of sealed test chamber 200 is also equipped with a one-way air inlet valve. This valve is opened simultaneously with exhaust to quickly reduce and neutralize the internal gas, accelerating the exhaust process.

[0053] The wormwood smoke generating box 110 is connected to the exhaust pipe 220 through a connecting pipe 230, and a one-way air valve is provided on the connecting pipe 230. The excess smoke generated by the wormwood smoke generating box 110 can be removed through the connecting pipe 230.

[0054] The test drawer 300 is located on the side of the sealed test box 200, above the cabinet 100. When closed, the test drawer 300 forms a single unit with the sealed test box 200, allowing the test product to be placed within the test environment of the sealed test box 200. When opened, the test drawer 300 separates from the sealed test box 200, making it easier to remove the test product.

[0055] Furthermore, a product fixture 310 is provided in the test drawer 300. The product fixture 310 can standardize the placement position and placement quantity of the test product. Through the interface of the fixture, the test product's own software system can be connected to the host computer test system, making it convenient for the host computer to collect test data of the test product.

[0056] To facilitate identification of the test product, a photo identification device 400 is provided above the test drawer 300 . The photo identification device 400 can be used to scan the QR code of the test product placed on the product fixture 310 to identify the product identity.

[0057] The photo recognition device 400 includes a product camera 410 and a fill light 420. When in use, the fill light 420 is turned on, and the product camera 410 is located above the product fixture 310. The QR code of the test product is collected by taking a photo, and the identity of the product is determined by software recognition.

[0058] Furthermore, a safety light curtain 430 is provided in the area surrounding the photo identification device 400. This light curtain is used to protect operators from being injured by components of the moving mechanism (e.g., the test drawer 300). The safety light curtain 430 includes a light emitter and a light receiver. Light emitted by the light emitter is directed onto the light receiver, forming a protective light curtain. When the light curtain is blocked, the light receiver generates a light blocking signal, which is transmitted via a signal cable to the controller. The controller processes this signal and generates a control output signal, which performs braking control (for the test drawer 300) or an alarm device, causing the device to stop operating or sound a safety alarm.

[0059] The host computer is equipped with a test system. Data interaction and analysis during the test are completed by the host computer software. The test data is saved on the host computer, and the test results are displayed in real time on the host computer display screen 510.

[0060] Furthermore, the sealed test box 200 is installed with a transmission type smoke concentration detector 210. The transmission type smoke concentration detector 210 can be realized by an optical densitometer. The optical densitometer is configured inside the sealed box and on the outer frame of the equipment to detect the smoke concentration inside the sealed box.

[0061] Furthermore, the host computer adopts an industrial computer, which serves as the data processing center and communication center of the test equipment, connects the test product with various test instruments and equipment to communicate and save test data, and displays it through the industrial computer display screen 510.

[0062] Based on the above-mentioned qualitative and quantitative calibration device, the present invention can realize the rapid, accurate and safe calibration of smoke and gas in composite detectors for power and energy storage batteries. The gas or smoke required for the test is generated by the gas generating device in the cabinet 100, and a sealed test environment is formed by using the sealed test box 200 to ensure the stability and reliability of the calibration process. At the same time, the gas or smoke is qualitatively and quantitatively detected by the calibration sensor module to achieve accurate calibration. In addition, the present invention also improves the identity recognition accuracy of the test product and the safety of the operator through designs such as the photo recognition device 400 and the safety grating 430. The entire calibration device has a compact structure and is easy to operate, and is suitable for the calibration needs of composite detectors for various power and energy storage batteries.

[0063] Example 2:

[0064] Based on the device of embodiment 1, the present invention further discloses a method for qualitative and quantitative calibration of smoke and gas of a battery composite detector, comprising the following steps:

[0065] S1. Select the detection mode in the test system;

[0066] S2. Identify the product identity and place the test product into the sealed test box 200 and power it on.

[0067] S3, detect the working current, automatically start the encoding function, and read the product software version number;

[0068] S4. Relying on the gas or smoke generated by the gas generating device, the gas or smoke is dispersed and fully stirred;

[0069] S5. Perform qualitative testing or quantitative calibration on the product composite detector according to the detection mode, and store and display it on the host computer;

[0070] S6. After the sealed test box 200 is exhausted and the internal gas reaches a safety standard, the test box is unlocked;

[0071] S7. Take out the tested products and put them into the OK or NG product bin according to the corresponding status prompted by the system.

[0072] Taking qualitative testing as an example, the testing process includes:

[0073] Press the system start button to run the test system. The system self-checks to check whether the hardware connections (such as the camera, sealed test box 200, sensors, etc.) are normal and whether the software program is loaded completely. After the self-check is completed, the system enters the standby state and waits for the test mode selection.

[0074] In the operation menu of the system interface, select the test mode as the qualitative detection option. The system prompts you to confirm entering the test mode. After clicking confirm, you will enter the test mode interface.

[0075] Open the test drawer 300 and manually place the product jig 310 into the designated position in the test drawer 300, ensuring that the jig is placed stably and the test product is positioned correctly. After the jig is placed, the system detects that the jig has been placed through a sensor.

[0076] The test can be started manually or automatically. Once the test begins, the system controls the camera to take a picture of the product. The camera captures the QR code on the product surface, and the system recognizes the code and obtains basic product information (such as model and batch). After successful recognition, the system interface displays the product information.

[0077] After identifying the QR code, the system controls the product fixture 310's mobile device, placing it into the sealed test chamber 200. The system then powers on the product under test. After powering on the sealed test chamber 200, the system uses a current sensor to measure the product's operating current and compares the measured current value with a preset normal range.

[0078] After the current detection is normal, the system automatically starts the encoding function of the product, sends a command through the communication interface of the product, activates the encoding module of the product, and completes the encoding operation. After the encoding is completed, the system sends a command to read the software version number to the product, and the product returns the software version information.

[0079] The system controls the product to enter sleep mode and uses sensors to monitor parameters such as power consumption to determine whether the sleep mode is normal. It then sends a wake-up command to observe whether the product can respond quickly and resume normal operation, and records the test results.

[0080] The system simulates a fire extinguishing scenario to test whether the product's fire extinguishing connection, feedback, and triggering functions are normal. It checks whether the product can correctly feedback the fire extinguishing status after receiving the fire extinguishing trigger signal, perform related actions, and record the test results.

[0081] After completing the above functional tests, the system automatically opens the selected air inlet channel (such as the mugwort smoke generating box), and smoke, VOC, CO and other gases enter the test box. The system controls the sensor to perform sensitivity detection on these parameters.

[0082] Each sensor transmits the detected value to the system in real time. The system determines whether the sensor is working properly based on the preset sensitivity standard and records the detection results.

[0083] If the product needs to be coded and set during the test process, the system will automatically execute this function after the sensor sensitivity test is completed, send a coding and set instruction to the product, and confirm the coding status of the product again after the operation is completed.

[0084] After the test is complete, the system interface displays the product test results, marked as OK (qualified) or NG (failed). It also displays relevant parameters recorded during the test, such as operating current, software version number, and sensor detection values, allowing users to easily view detailed information. If the test results need to be uploaded to an MES (Manufacturing Execution System), the system automatically packages the test data and sends it to the MES server via a network interface.

[0085] After the test, the system automatically opens the exhaust valve of the exhaust gas channel and begins to discharge the exhaust gas in the test box. At the same time, it opens the air intake valve to introduce fresh air to quickly reduce and neutralize the concentration of harmful gases inside.

[0086] The system monitors gas concentrations in real time using internal sensors. When the measured value reaches a preset safety level, the exhaust duct and intake valve are closed. Once the internal gas reaches a safety level, the system automatically unlocks the test chamber, allowing the drawer to be opened. Products are removed based on the system's status (OK or NG). Qualified products are placed in the OK bin, while unqualified products are placed in the NG bin, completing the entire testing process.

[0087] Taking quantitative calibration as an example, the testing process includes:

[0088] The operator presses the system start button, and the system begins a self-test to check whether the hardware connections (such as the camera, sensor, and sealed test chamber 200) are functioning properly. In the system interface's operation menu, select the Test Mode option. The system prompts you to confirm entering quantitative calibration mode. Clicking OK will enter the calibration mode interface.

[0089] Press a button to open the test drawer 300, manually insert the product fixture 310, and start the test manually or automatically. The operator presses the drawer open button, and the test drawer 300 automatically opens and inserts the product fixture 310. The operator places the product fixture 310 in the designated position in the test drawer 300, ensuring that the fixture is placed stably and the product is positioned correctly.

[0090] The system detects through sensors that the fixture has been placed, takes a photo of the product and identifies the QR code. The system controls the camera to take a photo of the product. The camera captures the QR code on the surface of the product. The system identifies the QR code and obtains basic information about the product (such as model, batch, etc.).

[0091] After identifying the QR code, the system controls the mobile device of the product fixture 310 to send the test drawer 300 into the sealed test box 200. The system powers on the product in the sealed test box 200 to provide power support for subsequent tests.

[0092] After the sealed test box 200 is powered on, the system detects the working current of the product through the current sensor and compares the detected current value with the preset normal range. If it exceeds the range, the system records the abnormal information and suspends subsequent tests.

[0093] After the current test is normal, the system automatically activates the product's encoding function. The system sends a command through the product's communication interface, activating the product's encoding module and completing the encoding operation. After encoding is complete, the system sends a command to the product to read the software version number. The product returns the software version information, which the system records and displays in the product information area on the interface.

[0094] The system performs sleep and wakeup function tests. The system controls the product to enter sleep mode and uses sensors to monitor parameters such as power consumption to determine whether sleep is normal. It then sends a wakeup command to observe whether the product can respond quickly and resume normal operation, and records the test results.

[0095] Furthermore, the system tests the fire extinguishing connection, feedback, and triggering functions. The system simulates a fire extinguishing scenario to verify that the product's connection to the fire extinguishing equipment is secure and that communication is functioning properly. Upon receiving the fire extinguishing trigger signal, the system checks whether the product can correctly report the fire extinguishing status, execute relevant actions, and record the test results.

[0096] Furthermore, smoke calibration is carried out, the smoke intake system is turned on to automatically open the smoke intake valve, and the smoke generated by the mugwort smoke generating box 110 enters the sealed test box 200 through the pipe. The system starts the circulation fan 250 and automatically adjusts the fan speed according to the smoke concentration to ensure that the smoke is fully mixed. The calibration sensor (optical densitometer) in the sealed test box 200 begins to detect the smoke concentration. When the sensor detection value reaches the preset predetermined value, the system closes the air intake valve. The circulation fan 250 rotates slowly and evenly to fully circulate the smoke in the box. When the calibration sensor detection value reaches a relatively stable state, the system records the stable value. The system compares the detection value of each product with the detection value of the calibration sensor, calculates the difference and saves it in the detection record. The system distinguishes the accuracy gear of each product according to the preset threshold and records the results.

[0097] CO calibration is similar to smoke calibration, with the system switching the gas source to the CO tank module. Repeat the steps, including opening the air inlet valve, starting the circulating fan 250°, calibrating the sensor, closing the air inlet valve, circulating smoke, and comparing the measured values, to complete CO calibration.

[0098] After calibration is completed, the system automatically opens the exhaust channel and starts exhausting. During the exhaust process, the system monitors the internal sensor detection values ​​in real time until the exhaust is closed after reaching the safety standard.

[0099] Furthermore, during the gas or smoke calibration process, the background simultaneously performs VOC (whether the aerosol meets the VOC test requirements) and temperature sensitivity tests and records the test results.

[0100] After the test is complete, the system interface displays the product test results, marked as OK (qualified) or NG (failed). It also displays relevant parameters recorded during the test, such as operating current, software version number, and sensor detection values. If the test results need to be uploaded to an MES (Manufacturing Execution System), the system automatically packages the test data and sends it to the MES server via a network interface.

[0101] Once the internal gas reaches safety standards, the test chamber is unlocked. The system uses internal sensors to monitor gas concentrations in real time to ensure that the gas remains within safety standards. Once the measured value reaches safety standards, the system automatically unlocks the test chamber, allowing the drawer to be opened. Based on the product status (OK or NG) indicated by the system, the operator removes the product from the product fixture 310 within the test drawer 300. Qualified products are placed in the OK product bin, and unqualified products are placed in the NG product bin.

[0102] Clean the product fixture 310 in the test drawer 300 to ensure that the fixture is clean and free of residue, so as to prepare for the next test.

[0103] Through the method of the present invention, accurate calibration of smoke and gas in composite detectors for power and energy storage batteries can be achieved, effectively improving the reliability and safety of the product. This method is not only suitable for qualitative detection of smoke and gas, but also can perform quantitative calibration, meeting the testing needs in different scenarios. During the test process, the system can automatically complete a series of operations such as product identification, power-on, functional testing, sensitivity testing, and result recording, greatly improving the test efficiency. At the same time, by real-time monitoring of the gas concentration in the test box, it is ensured that the test is carried out in a safe environment, ensuring the safety of the operator. In addition, the method also has good scalability and flexibility, and can be customized and optimized according to actual needs, providing strong technical support for the research and development and production of composite detectors for power and energy storage batteries.

[0104] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

[0105] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, the terms "installed," "connected," "connected," "fixed," etc. may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication between the two; direct connections, or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0106] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being above, above, or above a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, or below a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A battery composite detector smoke and gas qualitative and quantitative calibration device, characterized in that: include: A cabinet (100) for accommodating a gas generating device and a host computer; A sealed test box (200) forms a sealed test environment for the gas or smoke generated by the gas generating device; A test drawer (300) is used to send the placed test products into a sealed test environment and perform qualitative or quantitative calibration tests on the test products; The host computer is equipped with a test system, and the data interaction and analysis during the test are completed by the host computer software. The test data is saved on the host computer, and the test results are displayed in real time on the host computer display screen (510).

2. The device according to claim 1, characterized in that Also includes: The photographing and identifying device (400) is used to scan and identify the QR code of the test product placed in the test drawer (300) to identify the product identity.

3. The device according to claim 1, characterized in that The sealing test box (200) adopts a fully sealed design, with sealing strips installed at the air inlet and outlet, and smoke sensors and carbon monoxide sensors installed at leak-prone points and key locations of the sealing test box (200).

4. The device according to claim 1, characterized in that An air circulation duct (240) is used in the sealed test box (200) to disperse and fully stir the test gas or smoke.

5. The device according to claim 1, characterized in that The gas generating device comprises: a mugwort smoke generating box (110), an aerosol generator (120) and a carbon monoxide gas cylinder module (130).

6. The device according to claim 1, characterized in that The sealed test box (200) is equipped with a transmission type smoke concentration detector (210).

7. The device according to claim 5, characterized in that The air outlet of the sealed test box (200) is connected to an exhaust pipe (220), and the exhaust pipe is provided with a one-way air valve; the wormwood smoke generating box (110) is connected to the exhaust pipe (220) through a connecting pipe (230), and the connecting pipe (230) is provided with a one-way air valve.

8. The device according to any one of claims 1 to 7, characterized in that A method for qualitative and quantitative calibration of smoke and gas of a battery composite detector used in the device, comprising the following steps: S1. Select the detection mode in the test system; S2, identifying the product identity, sending the test product into the sealed test box (200) in a sealed test environment and powering it on; S3, detect the working current, automatically start the encoding function, and read the product software version number; S4. Relying on the gas or smoke generated by the gas generating device, the gas or smoke is dispersed and fully stirred; S5. Perform qualitative testing or quantitative calibration on the product composite detector according to the detection mode, and store and display it on the host computer; S6, the sealed test box (200) is exhausted, and after the internal gas reaches the safety standard, the test box is unlocked; S7. Take out the tested products and put them into the OK or NG product bin according to the corresponding status prompted by the system.

9. The device according to claim 8, characterized in that Conduct qualitative testing on the product's composite detector, including: Test the product's sleep and wake-up functions; test the product's fire extinguishing connection, feedback, and trigger functions; test the product's smoke, VOC, temperature, or CO sensor sensitivity to complete overall qualitative testing.

10. The device according to claim 8, characterized in that Quantitative calibration of product composite detectors, including smoke calibration and CO calibration, including: The gas inlet is opened, the circulation fan (250) is turned on, and the calibration sensor begins to detect. After the calibration sensor reaches a predetermined value, the air inlet valve is closed, and the circulation fan (250) rotates slowly and evenly to fully circulate the smoke in the box. When the calibration sensor detection value reaches a relatively stable state, the detection value of each product is compared with the calibration sensor detection value, and the difference is saved in the detection record. The detection system distinguishes the accuracy level of each product according to the preset threshold value, and the calibration is completed.

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