A quality inspection device for mobile phone lithium battery production

Abstract

The present invention relates to a quality inspection device for production of mobile phone lithium batteries applied in the field of lithium battery inspection. The inspection device can effectively realize state judgment of lithium batteries in a process of capacity inspection through the cooperation of a detection warning system, a contact pressure sensor, a capacity inspection cabin, a protective cone and a preventive protection structure. When an abnormality occurs in the inspection, not only can the abnormal data be quantified to facilitate subsequent technical personnel to perform data analysis, increase technical data of lithium battery production, and promote the technical development of lithium battery production, but also the state of the lithium battery capacitance inspection process can be quantified and displayed, effectively playing the role of fault warning and fault monitoring, and can effectively improve the safety in the process of capacitance inspection, prevent the occurrence of fault damage accidents, and reduce the economic loss in the process of lithium battery production inspection.

Description

Technical Field

[0001] The present application relates to the field of lithium battery testing, and in particular to a quality testing device for mobile phone lithium battery production. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the highly active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries.

[0003] The production process of lithium batteries includes mixing, gluing, drying, seaming, stamping, winding and laminating, shelling, top cover welding, electrolyte injection, injection port sealing nail welding, stacking process, aging and modularization. In this process, the production quality of each step needs to be tested to ensure the performance and quality of subsequent lithium batteries. Due to process reasons, the actual capacity of lithium batteries will be different, so they need to be tested for different capacities.

[0004] During the production process, battery capacity classification cabinets are generally used to conduct batch testing and capacity classification of lithium batteries. However, when conducting batch capacity classification testing on lithium batteries, since individual lithium batteries may have faults such as low voltage, low current, overvoltage and overcurrent, it is necessary to cut off the detection channel and provide safety protection in time. However, most of the protection measures in the existing technology can only cut off the power and cool down after the fault occurs, and cannot effectively provide fault warning, which not only increases the fault damage in the detection process, but also easily causes greater detection accidents, reduces the safety of lithium battery production testing, and increases economic losses. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of early warning of detection failure when lithium battery is tested for capacitance. Compared with the prior art, a quality detection device for mobile phone lithium battery production is provided, which includes a capacity dividing cabinet body, a plurality of capacity dividing plates are installed at both the front and rear ends of the capacity dividing cabinet body, a plurality of capacity dividing detection cabins are fixedly installed at the upper end of the capacity dividing plate, and an induction protection bag is fixedly installed on the inner wall of the capacity dividing detection cabin;

[0006] A detection and early warning system is arranged in the capacity division cabinet body, and the detection and early warning system includes a detection data processing unit, an input end of the detection data processing unit is connected to a capacity division parameter unit, a state sensing unit, an early warning position acquisition unit and a state self-test unit, and an output end of the detection data processing unit is connected to an early warning quantification unit and an early warning output unit;

[0007] A contact pressure sensor is fixedly connected to the upper end of the inductive protection bag, a flexible positioning baffle is fixedly connected inside the inductive protection bag, a plurality of protective cone thorns are fixedly connected to the lower inner wall of the inductive protection bag, a plurality of marking points are coated on the outer ends of the protective cone thorns, a plurality of inductive holes matching with the protective cone thorns are opened on the flexible positioning baffle, and a plurality of preventive protection structures are arranged between the lower inner wall of the inductive protection bag and the flexible positioning baffle;

[0008] The input end of the capacity division parameter unit is connected to the controller signal arranged on the capacity division cabinet body through a wire, the input end of the state sensing unit is connected to the contact pressure sensor signal, the input end of the early warning position acquisition unit is connected to the induction probe signal arranged in the sensing hole through a wire, and the input end of the state self-test unit is connected to the capacity division detection cabin signal through a wire;

[0009] The output end of the early warning quantification unit is connected to the preventive protection structure signal through a wire, and the output end of the early warning output unit is connected to the controller and alarm signal arranged on the capacity division cabinet body through a wire. Through the cooperation of the detection early warning system, the contact pressure sensor, the capacity division detection cabin, the protective cone and the preventive protection structure, the state judgment of the lithium battery in the capacity division detection process can be effectively realized. When the detection abnormality occurs, not only can the abnormal data be quantified, which is convenient for subsequent technical personnel to perform data analysis, increase the technical data of lithium battery production, and promote the technological development of lithium battery production, but also the state of the lithium battery capacitance detection process can be quantified and displayed, which effectively plays the role of fault early warning and fault monitoring, can effectively improve the safety of the capacitance detection process, prevent the occurrence of fault damage accidents, and reduce the economic losses in the lithium battery production detection process.

[0010] As a further supplement to the present invention, a spring clamping block is fixedly installed on the inner wall of the capacity detection cabin on one side close to the capacity detection cabinet body, and an electric contact detection head electrically connected to the capacity detection cabinet body is fixedly connected to the inner wall of the capacity detection cabin on the side away from the capacity detection cabinet body. The electric contact detection head and the extension line of the central axis of the spring clamping block in the horizontal direction are in the same straight line, and the electric contact detection head and the spring clamping block are directly above the induction protection bag. The electric contact detection head can perform capacity detection on the lithium battery according to the capacity detection program originally set in the capacity detection cabinet body, and the lithium battery is fixed by cooperating with the spring clamping block, which effectively ensures the early warning monitoring and protection effect of the induction protection bag on the lithium battery detection process.

[0011] As a further supplement to the present invention, the contact pressure sensor is electrically connected to the electric contact detection head through a wire, and the electric contact detection head is the power supply end, the contact pressure sensor is the sensing switch end, the input end of the status self-test unit is connected to the electric contact detection head signal, and the electrical coordination between the contact pressure sensor and the electric contact detection head can effectively realize the detection and early warning system to monitor the working status of the capacity division cabinet body and the installation position of the lithium battery in real time, and can timely and effectively start the relevant units to warn and protect the capacity division detection process, which fully improves the applicability of the detection and early warning system. While ensuring its detection accuracy, it reduces the energy loss caused by its continuous startup and increases its environmental protection.

[0012] As a further supplement to the present invention, the preventive protection structure includes an electromagnetic control sheet and a reset spring. The lower end of the flexible positioning partition and the upper inner wall of the induction protection bag are fixedly connected with a plurality of corresponding electromagnetic control sheets. A reset spring is fixedly connected between the upper and lower corresponding electromagnetic control sheets. The output end of the early warning quantization unit is connected to the electromagnetic control sheet signal through a wire.

[0013] As a further supplement to the present invention, the input end of the early warning quantification unit is also connected to the state self-test unit. During the detection of the lithium battery flashlight, it can generate quantitative data output according to the data transmitted by the state self-test unit. The electromagnetic control piece is energized to generate magnetism, which can produce an adsorption effect. Therefore, during the lithium battery capacity division detection process, the lithium battery detection process can be early warned and quantified according to the detection data of the state self-test unit. When the lithium battery has low voltage, low current, overvoltage and overcurrent faults, it can generate quantitative reactions in a timely and effective manner, thereby playing the role of early warning and data monitoring, effectively reducing the fault damage caused by continuous detection, improving the safety of capacity division detection, reducing the damage rate of the capacity division cabinet body, ensuring its continuous detection accuracy and extending its service life.

[0014] As another improvement of the present invention, the output end of the detection data processing unit is also connected to a forced disengagement unit, and the output end of the forced disengagement unit is connected to the electromagnetic control plate signal through a wire. The setting of the forced disengagement unit can, when the fault is urgent, promptly drive the lithium battery to produce displacement, and physically and electrically disengage it, thereby preventing it from continuing to perform capacity division detection, avoiding damage to the detection circuit, reducing the hazard of detection accidents, and fully ensuring the safety of the capacity division detection process.

[0015] As another improvement supplement to the present invention, the instruction priority of the forced separation unit is higher than the instruction priority of the early warning quantification unit. When the forced separation unit starts to work, the early warning quantification unit stops working. The output end of the forced separation unit is also connected to the electric contact detection head signal through a wire. When the forced separation unit forces the lithium battery to physically and electrically separate, the electric contact detection head is also disconnected simultaneously to block the current of the electric contact detection head, thereby avoiding circuit failure or electrical damage, further ensuring the safety of the lithium battery detection process, and reducing the economic losses after a failure accident occurs.

[0016] As another improvement of the present invention, a plurality of protection holes are opened at the upper end of the induction protection bag, and the plurality of protection holes correspond to the plurality of protection cone thorn positions one by one.

[0017] As another improved supplement of the present invention, an isolation membrane that cooperates with the protective cone is fixedly connected to the upper end of the protective hole, and the induction protection bag is filled with safety gas. The release of the safety gas can effectively avoid the occurrence of electric sparks or ignition, and can suppress the fire in time. While playing the role of early warning quantification and early warning, it further ensures the safety of the lithium battery detection process.

[0018] As another improvement supplement to the present invention, the inner diameters of the sensing hole and the protective hole are both 1.5-3 times the diameter of the protective cone, which fully ensures the leakage of the safety gas and can promote the leakage pressure of the safety gas through the action of pressure and small gaps, thereby increasing its spark suppression effect.

[0019] Compared with the prior art, the advantages of this application are:

[0020] (1) Through the coordination of the detection and early warning system, contact pressure sensor, capacity detection cabin, protective cone and preventive protection structure, the status of lithium batteries in the capacity detection process can be effectively judged. When an abnormality occurs in the detection, not only can the abnormal data be quantified, which is convenient for subsequent technical personnel to conduct data analysis, increase the technical data of lithium battery production, and promote the technological development of lithium battery production, but also the status of lithium battery capacitance detection process can be quantified and displayed, which effectively plays the role of fault early warning and fault monitoring, can effectively improve the safety of the capacitance detection process, prevent the occurrence of fault damage accidents, and reduce the economic losses in the lithium battery production and detection process.

[0021] (2) The electrical coordination between the contact pressure sensor and the electric contact detection head can effectively realize the detection and early warning system to monitor the working status of the capacity distribution cabinet body and the installation position of the lithium battery in real time, and can timely and effectively start the relevant units to warn and protect the capacity distribution detection process, which fully improves the applicability of the detection and early warning system. While ensuring its detection accuracy, it reduces the energy loss caused by its continuous startup and increases its environmental protection.

[0022] (3) When the electromagnetic control plate is energized, it generates magnetism and can produce an adsorption effect. Therefore, during the lithium battery capacity detection process, it can provide early warning and quantification of the lithium battery detection process based on the detection data of the status self-test unit. When the lithium battery has low voltage, low current, overvoltage and overcurrent faults, it can produce quantitative reactions in a timely and effective manner, thereby playing the role of early warning and data monitoring, effectively reducing the damage caused by continuous detection, improving the safety of capacity detection, reducing the damage rate of the capacity detection cabinet itself, ensuring its continuous detection accuracy and extending its service life.

[0023] (4) The setting of the forced disengagement unit can physically and electrically disengage the lithium battery in time by causing it to move when the fault is urgent, thereby preventing it from continuing to perform capacity division detection, avoiding damage to the detection circuit, reducing the severity of detection accidents, and fully ensuring the safety of the capacity division detection process.

[0024] (5) When the forced separation unit physically and electrically separates the lithium battery, it also disconnects the electric contact detection head simultaneously, blocking the current action of the electric contact detection head to avoid circuit failure or electrical damage, further ensuring the safety of the lithium battery detection process and reducing the economic losses after a failure accident occurs.

[0025] (6) The release of safety gas can effectively avoid the occurrence of electric sparks or ignition, and can suppress the fire in time. While playing the role of early warning and early warning, it further ensures the safety of the lithium battery testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the axonometric view of the sub-capacity cabinet body of this application;

[0027] Figure 2 This is the control logic diagram of the detection and early warning system of this application;

[0028] Figure 3 Axonometric diagram of the detection and early warning system and the sub-capacity plate of this application;

[0029] Figure 4 This is an exploded view of the sub-capacity inspection cabin of this application;

[0030] Figure 5This is a main cross-sectional view of the volume-divided detection cabin and the induction protection bag of the present application when not being detected;

[0031] Figure 6 This is the main cross-sectional view of the sub-capacity detection cabin and the induction protection bag of this application during normal detection;

[0032] Figure 7 This is the main cross-sectional view of the capacity-divided detection cabin and the induction protection package during fault warning protection of the present application;

[0033] Figure 8 This is a main cross-sectional view of the capacity-divided detection cabin and the induction protection package of the present application when the fault is electrically disconnected;

[0034] Fig. 9 This is a diagram of the coordination of the capacity detection cabin and the induction protection bag when installing the lithium battery in this application.

[0035] Description of the numbers in the figure:

[0036] 1 capacity distribution cabinet body, 2 capacity distribution board, 3 capacity distribution detection cabin, 31 electric contact detection head, 32 spring clamping block, 4 induction protection bag, 401 protection hole, 5 protection cone thorn, 6 isolation membrane, 7 flexible positioning partition, 8 preventive protection structure, 801 electromagnetic control sheet, 802 reset spring. DETAILED DESCRIPTION

[0037] The following is a detailed description of three implementation methods of the present application in conjunction with the accompanying drawings.

[0038] The first implementation method:

[0039] This application discloses a quality inspection device for mobile phone lithium battery production. Figure 1-6 and Fig. 9 , including a capacity dividing cabinet body 1, a plurality of capacity dividing plates 2 are installed at both the front and rear ends of the capacity dividing cabinet body 1, a plurality of capacity dividing detection cabins 3 are fixedly installed on the upper end of the capacity dividing plate 2, and an induction protection bag 4 is fixedly installed on the inner wall of the capacity dividing detection cabin 3;

[0040] A detection and early warning system coordinated with the capacity division detection system is arranged in the capacity division cabinet body 1, and the detection and early warning system includes a detection data processing unit, the input end of the detection data processing unit is connected with the capacity division parameter unit, the state sensing unit, the early warning position acquisition unit and the state self-test unit, and the output end of the detection data processing unit is connected with the early warning quantification unit and the early warning output unit;

[0041] The capacity division detection system is the original detection system in the capacity division cabinet body 1. It controls the charge and discharge of lithium batteries and analyzes the capacitance through the electric contact detection head 31, and can drive the capacity division plate 2 to flip. When the capacity division cabinet body 1 is working, the flip capacity division plate 2 is opened to facilitate the placement of lithium batteries and the observation of the monitoring status of lithium batteries.

[0042] A contact pressure sensor is fixedly connected to the upper end of the inductive protection bag 4, a flexible positioning partition 7 is fixedly connected inside the inductive protection bag 4, a plurality of protective cone spikes 5 are fixedly connected to the lower inner wall of the inductive protection bag 4, a plurality of marking points are coated on the outer ends of the protective cone spikes 5, and a plurality of inductive holes matching the protective cone spikes 5 are opened on the flexible positioning partition 7, and a plurality of preventive protective structures 8 are arranged between the lower inner wall of the inductive protection bag 4 and the flexible positioning partition 7;

[0043] The input end of the capacity division parameter unit is connected to the controller signal disposed on the capacity division cabinet body 1 through a wire, the input end of the state sensing unit is connected to the contact pressure sensor signal, the input end of the early warning position acquisition unit is connected to the induction probe signal disposed in the sensing hole through a wire, and the input end of the state self-test unit is connected to the capacity division detection cabin 3 through a wire;

[0044] The output end of the early warning quantification unit is connected to the preventive protection structure 8 signal through a wire, and the output end of the early warning output unit is connected to the controller and alarm signal arranged on the capacity division cabinet body 1 through a wire. Through the cooperation of the detection early warning system, the contact pressure sensor, the capacity division detection cabin 3, the protective cone thorn 5 and the preventive protection structure 8, the state judgment of the lithium battery in the capacity division detection process can be effectively realized. When the detection abnormality occurs, not only can the abnormal data be quantified, which is convenient for subsequent technical personnel to perform data analysis, increase the technical data of lithium battery production, and promote the technological development of lithium battery production, but also the state of the lithium battery capacitance detection process can be quantified and displayed, which effectively plays the role of fault early warning and fault monitoring, can effectively improve the safety of the capacitance detection process, prevent the occurrence of fault damage accidents, and reduce the economic losses in the lithium battery production detection process.

[0045] See also Figure 1-6 and Fig. 9 A spring clamping block 32 is fixedly installed on the inner wall of the capacity detection cabin 3 on the side close to the capacity detection cabinet body 1, and an electric contact detection head 31 electrically connected to the capacity detection cabinet body 1 is fixedly connected to the inner wall of the capacity detection cabin 3 on the side away from the capacity detection cabinet body 1. The extension lines of the central axes of the electric contact detection head 31 and the spring clamping block 32 in the horizontal direction are on the same straight line, and the electric contact detection head 31 and the spring clamping block 32 are directly above the induction protection bag 4. The electric contact detection head 31 can perform capacity detection on the lithium battery according to the capacity detection program originally set in the capacity detection cabinet body 1, and the lithium battery is fixed by cooperating with the spring clamping block 32, which effectively ensures the early warning monitoring and protection effect of the induction protection bag 4 on the lithium battery detection process.

[0046] See also Figure 1-6 and Fig. 9The contact pressure sensor is electrically connected to the electric contact detection head 31 through a wire, and the electric contact detection head 31 is the power supply end, the contact pressure sensor is the sensing switch end, and the input end of the state self-test unit is connected to the electric contact detection head 31 signal. The electrical coordination between the contact pressure sensor and the electric contact detection head 31 can effectively realize the detection and early warning system to monitor the working state of the capacity division cabinet body 1 and the installation position of the lithium battery in real time, and can timely and effectively start the relevant units to warn and protect the capacity division detection process, which fully improves the applicability of the detection and early warning system. While ensuring its detection accuracy, it reduces the energy loss caused by its continuous startup and increases its environmental protection.

[0047] See also Figure 1-6 and Fig. 9 The preventive protection structure 8 includes an electromagnetic control sheet 801 and a reset spring 802. The lower end of the flexible positioning partition 7 and the upper inner wall of the inductive protection bag 4 are fixedly connected with a plurality of corresponding electromagnetic control sheets 801. A reset spring 802 is fixedly connected between the upper and lower corresponding electromagnetic control sheets 801. The output end of the early warning quantization unit is connected to the electromagnetic control sheet 801 signal through a wire.

[0048] See also Figure 1-6 and Fig. 9 The input end of the early warning quantification unit is also connected to the state self-test unit. During the detection of the lithium battery flashlight, it can generate quantitative data output according to the data transmitted by the state self-test unit. The electromagnetic control piece 801 generates magnetism when it is energized, which can produce an adsorption effect. Therefore, during the lithium battery capacity division detection process, the lithium battery detection process can be early-warned and quantified according to the detection data of the state self-test unit. When the lithium battery has low voltage, low current, overvoltage and overcurrent faults, it can generate quantitative reactions in a timely and effective manner, which plays the role of early warning and data monitoring, effectively reduces the fault damage caused by continuous detection, improves the safety of capacity division detection, reduces the damage rate of the capacity division cabinet body 1, ensures its continuous detection accuracy and extends its service life.

[0049] See also Figure 1-6 and Fig. 9, the technician inputs the capacitance detection parameters of lithium batteries of different specifications into the capacitance parameter unit through the controller, and the capacitance parameter unit converts the data and transmits it to the detection data processing unit, which processes and stores the parameters to rationalize the quantitative range of the marking points on the protective cone thorn 5; then install the lithium battery into the capacitance detection cabin 3, so that the lithium battery is stuck between the electric contact detection head 31, the induction protection bag 4 and the spring clamping block 32, so that the electric contact detection head 31 and the spring clamping block 32 are clamped at both ends of the lithium battery, and the electric contact detection head 31 is electrically connected to the lithium battery, and the lithium battery performs a preliminary downward pressure on the induction protection bag 4, so that the contact pressure sensor at its upper end contacts the pressure, and when the capacitance cabinet body 1 is working, the capacitance detection system controls the electric contact detection head 31 to generate an electrical effect, at this time, because the contact pressure sensor generates a connected state after receiving the contact pressure, after the electric contact detection head 31 is connected, the state sensing unit receives the detection signal, and the state sensing unit transmits the signal to the detection data processing unit, and after the detection data processing unit identifies the data, it starts other detection units;

[0050] At this time, the state self-test unit monitors the electrical signal data between the electric contact detection head 31 and the lithium battery, and transmits the signal data to the detection data processing unit and the early warning quantification unit at the same time. When the detection data processing unit and the early warning quantification unit determine that the data monitored by the state self-test unit is normal, no action is taken. When it is determined that the data monitored by the state self-test unit has an abnormal trend, the detection data processing unit controls the data, and the early warning quantification unit starts to take action, transmitting currents in different directions to the upper and lower corresponding electromagnetic control sheets 801, so that they generate different magnetic poles and attract each other, thereby driving the flexible positioning partition 7 close to the lower inner portion of the induction protection package 4. The wall causes the induction protection bag 4 to shrink. At this time, the upper end of the induction protection bag 4 is away from the lithium battery, so that the contact pressure sensor no longer receives the contact pressure. At this time, the detection data processing unit receives the no-contact signal and controls the early warning quantification unit to start. As the induction protection bag 4 continues to shrink, the sensing hole on the flexible positioning partition 7 will be sleeved on the outside of the protection cone thorn 5, and the induction probe in the sensing hole identifies the marking point on the protection cone thorn 5, and transmits the identification data to the early warning position acquisition unit. The early warning position acquisition unit processes the data and transmits it to the detection data processing unit. The detection data processing unit judges and analyzes the early warning data and abnormal monitoring data.

[0051] When it is determined that the result does not require early warning protection, the early warning position acquisition unit and the state self-test unit are controlled to continuously monitor the lithium battery detection data, and the early warning output unit is controlled to output early warning quantitative data to the controller in real time; when it is determined that the result requires early warning protection, the early warning output unit is controlled to start, and early warning data is sent to the controller, and the alarm is controlled to start, and an early warning signal is sent to the technical personnel, reminding the technical personnel to observe the lithium battery at this time, and manually adjust the detection process, while reducing the failure rate, ensuring the effectiveness and safety of the detection process; through the cooperation of the detection early warning system, the contact pressure sensor, the capacity detection cabin 3, the protective cone thorn 5 and the preventive protection structure 8, the state judgment of the lithium battery in the capacity detection process can be effectively realized. When it produces a detection abnormality, not only can its abnormal data be quantified, which is convenient for subsequent technical personnel to perform data analysis, increase the technical data of lithium battery production, and promote the technical development of lithium battery production, but also the state of the lithium battery capacitance detection process can be quantified and displayed, which effectively plays the role of fault early warning and fault monitoring, can effectively improve the safety of the capacitance detection process, prevent the occurrence of fault damage accidents, and reduce the economic losses in the lithium battery production and detection process.

[0052] Second implementation method:

[0053] This application discloses a quality inspection device for mobile phone lithium battery production. Figure 1-6 , Figure 8 and Fig. 9 , wherein the components identical or corresponding to those in Implementation 1 are marked with the corresponding reference numerals in Implementation 1. For the sake of simplicity, only the differences from Implementation 1 are described below. Implementation 2 is different from Implementation 1 in that: the output end of the detection data processing unit is also connected to a forced separation unit, and the output end of the forced separation unit is connected to the electromagnetic control sheet 801 signal through a wire. The setting of the forced separation unit can, when the fault is urgent, timely drive the lithium battery to generate displacement, physically and electrically separate it, prevent it from continuing to perform capacity division detection, avoid damage to the detection circuit, reduce the hazard of detection accidents, and fully ensure the safety of the capacity division detection process.

[0054] See also Figure 1-6 , Figure 8 and Fig. 9The command priority of the forced separation unit is higher than the command priority of the early warning quantification unit. When the forced separation unit starts, the early warning quantification unit stops. The output end of the forced separation unit is also connected to the signal of the electric contact detection head 31 through a wire. When the forced separation unit forcibly physically and electrically separates the lithium battery, the electric contact detection head 31 is also disconnected simultaneously to block the current of the electric contact detection head 31, thereby avoiding circuit failure or electrical damage, further ensuring the safety of the lithium battery detection process, and reducing the economic losses after a failure accident.

[0055] See also Figure 1-6 , Figure 8 and Fig. 9 When the detection data processing unit determines that the result requires early warning protection, or when the monitoring data transmitted by the status self-test unit is judged to be an emergency fault, the detection data processing unit controls the forced separation unit to start, and at the same time the early warning quantization unit is closed and no longer functions, so that the forced separation unit transmits current in the same direction to the upper and lower corresponding electromagnetic control sheets 801, so that they produce the same magnetic poles. Under the repulsive effect, the induction protection package 4 produces a repulsive tension deformation, so that the lithium battery is lifted up and separated from the clamping of the electric contact detection head 31 and the spring clamping block 32, and is separated from them, and the electric contact detection head 31 and the lithium battery are physically electrically separated. At the same time, the forced separation unit shuts down the electrical signal transmitted by the electric contact detection head 31, and completely cuts off the power transmission between the electric contact detection head 31 and the lithium battery, further ensuring the effect of safety protection.

[0056] The third implementation method:

[0057] This application discloses a quality inspection device for mobile phone lithium battery production. Figure 1-7 and Fig. 9 , wherein the components identical or corresponding to those in Embodiment 1 are marked with the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 3 and Embodiment 1 is that: a plurality of protective holes 401 are provided at the upper end of the induction protection package 4, and the plurality of protective holes 401 correspond to the positions of the plurality of protective cone spikes 5 one by one. An isolation membrane 6 matching the protective cone spikes 5 is fixedly connected to the upper end of the protective holes 401. The induction protection package 4 is filled with a safety gas, which may be carbon dioxide gas, having a flame retardant effect. The release of the safety gas can effectively avoid the occurrence of electric sparks or ignition, and can suppress the fire in time. While playing the role of early warning quantification and early warning, it further ensures the safety of the lithium battery detection process. The inner diameters of the induction holes and the protective holes 401 are both 1.5-3 times the diameter of the protective cone spikes 5, which fully ensures the leakage of the safety gas, and can promote the leakage pressure of the safety gas through the action of pressure and small gaps, thereby increasing its spark suppression effect.

[0058] See also Figure 1-6 , Figure 8 and Fig. 9 While the early warning quantification unit is continuously working, the technician checks and manually adjusts the detection status of the lithium battery. At this time, due to the adsorption and contraction of the induction protection package 4, the flexible positioning partition 7 continues to move downward, and the protection cone thorn 5 pierces the isolation membrane 6 through the protection hole 401, and releases the safety gas in the induction protection package 4 through the gap. The safety gas performs a gas barrier around the lithium battery to avoid other detection faults caused by the appearance of electric sparks during the technician's inspection and adjustment process. It not only protects the technician's adjustment process and realizes the controllability of the detection process, but also can buy effective time for fault damage, further ensuring the safety of the capacity division detection process.

[0059] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A quality inspection device for mobile phone lithium battery production, comprising a capacity distribution cabinet body (1), characterized in that: A plurality of capacity dividing plates (2) are installed at both the front and rear ends of the capacity dividing cabinet body (1); a plurality of capacity dividing detection chambers (3) are fixedly installed on the upper ends of the capacity dividing plates (2); and an induction protection bag (4) is fixedly installed on the upper inner wall of the capacity dividing detection chamber (3); The capacity dividing cabinet body (1) is provided with a detection and early warning system, the detection and early warning system comprising a detection data processing unit, the input end of the detection data processing unit is connected to a capacity dividing parameter unit, a state sensing unit, an early warning position acquisition unit and a state self-test unit, and the output end of the detection data processing unit is connected to an early warning quantification unit and an early warning output unit; The upper end of the inductive protection bag (4) is fixedly connected to a contact pressure sensor, the interior of the inductive protection bag (4) is fixedly connected to a flexible positioning baffle (7), the lower inner wall of the inductive protection bag (4) is fixedly connected to a plurality of protective cone spikes (5), the outer ends of the protective cone spikes (5) are coated with a plurality of marking points, and the flexible positioning baffle (7) is provided with a plurality of sensing holes that match the protective cone spikes (5), and a plurality of preventive protective structures (8) are provided between the lower inner wall of the inductive protection bag (4) and the flexible positioning baffle (7); The input end of the capacity division parameter unit is connected to the controller signal provided on the capacity division cabinet body (1) through a wire, the input end of the state sensing unit is connected to the contact pressure sensor signal, the input end of the early warning position acquisition unit is connected to the sensing probe signal provided in the sensing hole through a wire, and the input end of the state self-test unit is connected to the capacity division detection cabin (3) through a wire; The output end of the early warning quantification unit is connected to the preventive protection structure (8) through a wire, and the output end of the early warning output unit is connected to the controller and alarm signal arranged on the capacity distribution cabinet body (1) through a wire; The preventive protection structure (8) comprises an electromagnetic control sheet (801) and a return spring (802); the lower end of the flexible positioning baffle (7) and the upper inner wall of the inductive protection bag (4) are both fixedly connected with a plurality of correspondingly arranged electromagnetic control sheets (801); a return spring (802) is fixedly connected between two corresponding upper and lower electromagnetic control sheets (801); and the output end of the early warning quantification unit is signal-connected to the electromagnetic control sheet (801) via a wire; The electromagnetic control sheet (801) generates magnetism when energized, which can produce an adsorption effect, and can then provide a quantified early warning of the lithium battery detection process based on the detection data of the state self-test unit during the lithium battery capacity detection process. When the lithium battery has low voltage, low current, overvoltage, overcurrent and other faults, a quantitative response can be generated in a timely and effective manner, achieving the effect of early warning and data monitoring.

2. A quality inspection device for mobile phone lithium battery production according to claim 1, characterized in that: A spring clamping block (32) is fixedly mounted on the inner wall of the capacity detection chamber (3) on one side close to the capacity detection cabinet body (1), and an electric contact detection head (31) electrically connected to the capacity detection cabinet body (1) is fixedly connected to the inner wall of the capacity detection chamber (3) on the side away from the capacity detection cabinet body (1), wherein the extension lines of the central axes of the electric contact detection head (31) and the spring clamping block (32) in the horizontal direction are on the same straight line, and the electric contact detection head (31) and the spring clamping block (32) are directly above the induction protection bag (4).

3. A quality inspection device for mobile phone lithium battery production according to claim 2, characterized in that: The contact pressure sensor is electrically connected to the electric contact detection head (31) via a wire, the electric contact detection head (31) is a power supply end, the contact pressure sensor is a sensing switch end, and the input end of the state self-test unit is signal-connected to the electric contact detection head (31).

4. A quality inspection device for mobile phone lithium battery production according to claim 1, characterized in that: The input end of the early warning quantization unit is also connected to the state self-test unit. During the detection of the lithium battery flashlight, the quantized data output can be generated according to the data transmitted by the state self-test unit.

5. A quality inspection device for mobile phone lithium battery production according to claim 1, characterized in that: The output end of the detection data processing unit is also connected to a forced separation unit, and the output end of the forced separation unit is connected to the electromagnetic control sheet (801) through a wire.

6. A quality inspection device for mobile phone lithium battery production according to claim 5, characterized in that: The command priority of the forced separation unit is higher than the command priority of the early warning quantification unit, so when the forced separation unit starts to function, the early warning quantification unit stops functioning, and the output end of the forced separation unit is also connected to the electric contact detection head (31) through a wire for signal transmission.

7. A quality inspection device for mobile phone lithium battery production according to claim 1, characterized in that: The upper end of the induction protection bag (4) is provided with a plurality of protection holes (401), and the plurality of protection holes (401) correspond to the positions of the plurality of protection spikes (5) one by one.

8. A quality inspection device for mobile phone lithium battery production according to claim 7, characterized in that: An isolation membrane (6) that matches the protective cone (5) is fixedly connected to the upper end of the protective hole (401), and the induction protection bag (4) is filled with safety gas.

9. A quality inspection device for mobile phone lithium battery production according to claim 8, characterized in that: The inner diameters of the sensing hole and the protective hole (401) are both 1.5 to 3 times the diameter of the protective cone (5).

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