Battery cell polarity recognition device and apparatus
By configuring unidirectional light-emitting components and alarm components connected in reverse parallel, and using both light color and sound alarm signals for dual verification, the problem of reversed cell placement during battery assembly is solved, improving identification accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-16
Smart Images
Figure CN224366160U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to a cell polarity identification device and apparatus. Background Technology
[0002] With the development of new energy technologies, secondary batteries, represented by lithium batteries, have been widely used in energy storage systems, electric vehicles, and aerospace, bringing great convenience to people's daily production and life. Battery assembly requires identifying the positive and negative terminals of the cells to assemble components such as the cells, battery management system, and thermal management system according to the production process, ultimately forming the battery product.
[0003] During the assembly process, for battery cells without clear positive and negative markings, workers often need to use a multimeter to check the positive and negative terminals. This can easily lead to the battery cells being reversed due to fatigue. Utility Model Content
[0004] Therefore, it is necessary to propose a cell polarity identification device and equipment to alleviate the phenomenon of reverse cell discharge during battery assembly, thereby reducing the occurrence of large-area short circuits, overheating, fires, and explosions caused by reverse cell discharge.
[0005] This application provides a battery cell polarity identification device, including a first unidirectional light-emitting component, a first alarm component, and a second unidirectional light-emitting component. A first end of the first unidirectional light-emitting component is connected to a first electrode of the battery cell under test, and a second end of the first unidirectional light-emitting component is connected to a second electrode of the battery cell under test. The first unidirectional light-emitting component emits light in a first color when the first electrode is positive. The second unidirectional light-emitting component and the first alarm component are connected in series to form a unidirectional structure. A first end of the unidirectional structure is connected to the second electrode, and a second end of the unidirectional structure is connected to the first electrode. The unidirectional structure emits light in a second color and outputs a first audible alarm signal when the second electrode is positive.
[0006] The aforementioned battery cell polarity identification device is configured with a first unidirectional light-emitting component and a second unidirectional light-emitting component connected in reverse parallel, and a first alarm component is connected in series in the branch where the second unidirectional light-emitting component is located, forming a unidirectional structure. In a practical scenario, the first end of the first unidirectional light-emitting component and the second end of the unidirectional structure are connected together to the first pole of the battery cell under test, and the second end of the first unidirectional light-emitting component and the first end of the unidirectional structure are connected together to the second pole of the battery cell under test. If the first pole is positive (and the second pole is negative), then the first unidirectional light-emitting component is turned on, the unidirectional structure is turned off, and the first unidirectional light-emitting component emits light in the first color. If the second pole is positive (and the first pole is negative), then the unidirectional structure is turned on, the first unidirectional light-emitting component is turned off, and the second unidirectional light-emitting component emits light in the second color, and the first alarm component outputs a first audible alarm signal. This solution allows for dual verification to identify the positive and negative terminals of the battery cell under test, based on different light colors and the presence of audible alarm signals. Compared to measuring voltage values with a multimeter, it can identify the cells through sound and light, effectively mitigating the phenomenon of reversed cell discharge during battery assembly and thus reducing the occurrence of large-area short circuits, overheating, fires, and explosions caused by reversed cell discharge.
[0007] In some embodiments, the first unidirectional light-emitting component includes a first light-emitting unit, the input terminal of the first light-emitting unit being connected to the first electrode, and the output terminal of the first light-emitting unit being connected to the second electrode.
[0008] The above scheme uses light-emitting units to form the first unidirectional light-emitting component. By utilizing the unidirectional conduction characteristics of the light-emitting units, it can achieve the function of emitting light in the first color when the first electrode is positive. It has the advantages of simple structure and saving the cost and volume of light-emitting components.
[0009] In some embodiments, the first unidirectional light-emitting component further includes a first current-limiting device; the input terminal of the first light-emitting unit is connected to the first electrode through the first current-limiting device, and / or the output terminal of the first light-emitting unit is connected to the second electrode through the first current-limiting device.
[0010] The above scheme can also connect a first current limiting device in series at the input or output end of the first light-emitting unit to limit the current flowing through the first light-emitting unit, thereby significantly reducing the power consumption of the battery cell under test during polarity identification.
[0011] In some embodiments, the second unidirectional light-emitting component includes a second light-emitting unit; the input terminal of the second light-emitting unit is connected to the second pole through the first alarm component, and the output terminal of the second light-emitting unit is used to connect to the first pole; or, the output terminal of the second light-emitting unit is connected to the first pole through the first alarm component, and the input terminal of the second light-emitting unit is used to connect to the second pole.
[0012] The above scheme sets the structure of the second unidirectional light-emitting component the same as that of the first unidirectional light-emitting component. Both are formed by building light-emitting units. By utilizing the unidirectional conduction characteristics of the light-emitting units, the second electrode emits light in the second color when it is the positive electrode. It has the advantages of simple structure and saving the cost and volume of light-emitting components.
[0013] In some embodiments, the second unidirectional light-emitting component further includes a second current-limiting device, and the first alarm component, the second current-limiting device, and the second light-emitting unit are connected in series.
[0014] In the above scheme, a second current limiting device is further connected in series in the series branch of the first alarm component and the second light-emitting unit to limit the current flowing through the second light-emitting unit, thereby further reducing the power consumption of the battery cell under test while ensuring the operation of the first alarm component and the second light-emitting unit.
[0015] In some embodiments, the cell polarity identification device further includes a second alarm component, which is connected in series with the first unidirectional light-emitting component, and the first end formed by the series connection is used to connect to the first pole, and the second end formed by the series connection is used to connect to the second pole; the second alarm component is used to output a second audible alarm signal when the first pole is positive.
[0016] The above scheme can also connect a second alarm component in series with the first unidirectional light-emitting component. In this way, when the first electrode is positive, it can not only emit light in the first color, but also output a second sound alarm signal to remind the user, further reducing the occurrence of reverse discharge of the battery cells during battery assembly and improving assembly safety.
[0017] In some embodiments, the first alarm component includes a buzzer.
[0018] The above solution uses a buzzer as the first alarm component, which has the advantages of high sound recognition, low cost, and easy installation and maintenance.
[0019] In some embodiments, the first alarm component includes a connected processor and a buzzer; the first end of the second unidirectional light-emitting component is used to connect to the second pole, and the second end of the second unidirectional light-emitting component is connected to the first pole through the processor; or, the second end of the second unidirectional light-emitting component is used to connect to the first pole, and the first end of the second unidirectional light-emitting component is connected to the second pole through the processor.
[0020] The above solution uses a processor and a buzzer to form the first alarm component. In this way, the drive signal output by the processor can be adjusted according to the needs, thereby changing the alarm mode of the first alarm component and effectively improving the adaptability and applicability of the first alarm component.
[0021] This application also provides a cell polarity identification device, including a lifting mechanism and a carrying mechanism arranged opposite to each other, and a plurality of cell polarity identification devices as described above. The cell polarity identification devices are disposed on the lifting mechanism, the carrying mechanism is used to place the cell to be tested, and the lifting mechanism is used to drive the cell polarity identification devices to dock with the cell to be tested, so as to realize the polarity identification of multiple cells to be tested.
[0022] The above solution can be equipped with multiple cell polarity identification devices in the lifting mechanism. In this way, the polarity identification of multiple cells to be tested can be realized at one time under the drive of the lifting mechanism, which can effectively improve the polarity identification efficiency.
[0023] In some embodiments, the cell polarity identification device further includes a spring probe disposed on the side of the lifting mechanism near the supporting mechanism. In the same cell polarity identification device, the first end of the first unidirectional light-emitting component and the second end of the unidirectional structure are jointly connected to the first spring probe, and the second end of the first unidirectional light-emitting component and the first end of the unidirectional structure are jointly connected to the second spring probe. The first spring probe is used to connect to the first pole of the cell under test, and the second spring probe is used to connect to the second pole of the same cell under test.
[0024] The above solution uses a spring probe to connect with the battery cell under test, which can effectively reduce the possibility of damaging the battery cell under test during the descent of the lifting mechanism and improve test safety. Attached Figure Description
[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0026] Figure 1 This is a schematic diagram of the battery cell polarity identification device structure in some embodiments of this application;
[0027] Figure 2 This is a schematic diagram of the battery cell polarity identification device in some other embodiments of this application;
[0028] Figure 3 This is a schematic diagram of the battery cell polarity identification device in some embodiments of this application;
[0029] Figure 4 This is a schematic diagram of the battery cell polarity identification device in some embodiments of this application;
[0030] Figure 5 This is a schematic diagram of the battery cell polarity identification device in some other embodiments of this application;
[0031] Figure 6 This is a schematic diagram of the battery cell polarity identification device in some embodiments of this application;
[0032] Figure 7 This is a schematic diagram of the battery cell polarity identification device structure in some embodiments of this application;
[0033] Figure 8 This is a schematic diagram of the battery cell polarity identification device in some other embodiments of this application.
[0034] Explanation of reference numerals in the attached figures:
[0035] 100-First unidirectional light-emitting component, 200-Second unidirectional light-emitting component, 300-First alarm component, 400-Second alarm component, D1-First light-emitting unit, D2-Second light-emitting unit, R1-First current-limiting device, R2-Second current-limiting device, 701-Lifting mechanism, 702-Bearing mechanism, 703-Spring probe. Detailed Implementation
[0036] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0038] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0040] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0041] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0042] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0043] Currently, judging from market trends, battery applications are becoming increasingly widespread. They are not only used in energy storage systems for hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. As the application areas of batteries continue to expand, the market demand is also constantly increasing.
[0044] In battery production, components such as battery cells, battery management systems, and thermal management systems are often assembled according to a production process to form a complete battery product. While most battery cells can be visually distinguished by their positive and negative terminals—for example, the positive terminal is usually located at one end of the cell and has a raised portion, typically marked with a "+" symbol; the negative terminal is located at the other end of the cell, also a raised portion, typically marked with a "-" symbol—in practical applications, some battery cells lack clear positive and negative markings, making it easy to confuse the positive and negative terminals.
[0045] In related technologies, for battery cells without obvious positive and negative markings, a multimeter is usually used for measurement. Specifically, the multimeter is set to the DC voltage range, the red probe is connected to one terminal of the battery cell, and the black probe is connected to the other terminal. If the reading is positive, it means that the red probe is connected to the positive terminal; if the reading is negative, it means that the red probe is connected to the negative terminal.
[0046] However, this method can only identify the positive and negative terminals of the battery cell by using the voltage value of a multimeter. It relies on human visual confirmation. Testers are prone to misreading the voltage value displayed on the multimeter due to visual fatigue (such as ignoring the negative sign "-"). This can lead to the battery cell being placed in the wrong position during assembly. At best, this can cause a short circuit between the positive and negative terminals. At worst, it can cause a large-area short circuit, overheating, and eventually runaway explosion, smoke, and fire.
[0047] To alleviate the above-mentioned problems, in-depth research has revealed that audible and visual alarms have a higher recognition rate compared to visual recognition alone. Therefore, it is possible to replace the traditional method of identifying positive and negative terminals by voltage values with audible and visual alarm prompts to distinguish the positive and negative terminals of the battery cell. This would reduce the possibility of errors due to visual fatigue and thus improve the accuracy of identification.
[0048] Based on the above considerations, this application proposes a battery cell polarity identification device, which configures a first unidirectional light-emitting component and a second unidirectional light-emitting component connected in reverse parallel, and connects a first alarm component in series in the branch where the second unidirectional light-emitting component is located, forming a unidirectional structure. In a practical scenario, the first end of the first unidirectional light-emitting component and the second end of the unidirectional structure are connected together to the first pole of the battery cell under test, and the second end of the first unidirectional light-emitting component and the first end of the unidirectional structure are connected together to the second pole of the battery cell under test. If the first pole is positive (and the second pole is negative), then the first unidirectional light-emitting component is turned on, the unidirectional structure is turned off, and the first unidirectional light-emitting component emits light in a first color. If the second pole is positive (and the first pole is negative), then the unidirectional structure is turned on, the first unidirectional light-emitting component is turned off, and the second unidirectional light-emitting component emits light in a second color, and the first alarm component outputs a first audible alarm signal.
[0049] The above scheme can identify the positive and negative terminals of the battery cell under test by dual verification based on different light colors and whether there is an audible alarm signal output. Compared with the method of measuring voltage with a multimeter, it can be identified by sound and light, which can effectively alleviate the phenomenon of reverse discharge of battery cells during battery assembly, thereby reducing the occurrence of large-area short circuits, overheating, fires and explosions caused by reverse discharge of battery cells.
[0050] The cell polarity identification device provided in this application embodiment is used for identifying the positive and negative terminals of a cell. The cell referred to here can be a single cell or a structure formed by multiple cells connected in series and / or in parallel (including a total positive terminal and a total negative terminal), and there is no specific limitation.
[0051] It is understood that cell polarity identification is not limited to battery assembly processes. Other processes requiring cell polarity identification can also utilize the cell polarity identification device provided in this application embodiment, without any specific limitations. Furthermore, the cell polarity identification device can be used for various types of cells, such as prismatic cells, pouch cells, and cylindrical cells, without any specific limitations.
[0052] Please see Figure 1 This application provides a battery cell polarity identification device, including a first unidirectional light-emitting component 100, a first alarm component 300, and a second unidirectional light-emitting component 200. The first end of the first unidirectional light-emitting component 100 is used to connect to the first pole of the battery cell under test (not shown), and the second end of the first unidirectional light-emitting component 100 is used to connect to the second pole of the battery cell under test. The first unidirectional light-emitting component 100 emits light in a first color when the first pole is positive. The second unidirectional light-emitting component 200 and the first alarm component 300 are connected in series to form a unidirectional structure. The first end of the unidirectional structure is used to connect to the second pole, and the second end of the unidirectional structure is used to connect to the first pole. The unidirectional structure emits light in a second color and outputs a first audible alarm signal when the second pole is positive.
[0053] Specifically, a unidirectional light-emitting component is a device that has unidirectional conduction capability, emitting light when unidirectionally connected and not emitting light when reversely cut off. The first alarm component 300 is an alarm device that outputs an audible alarm signal when current flows through it, and does not output an audible alarm signal when no current flows through it. When the first unidirectional light-emitting component 100 is unidirectionally connected, its current flows from the first terminal to the second terminal. Therefore, when the first terminal is positive, the first unidirectional light-emitting component 100 is unidirectionally connected, thus emitting light in the first color. When the second unidirectional light-emitting component 200 is unidirectionally connected, its current flows from the first terminal to the second terminal. Therefore, when the second terminal is positive, the second unidirectional light-emitting component 200 is unidirectionally connected, thus emitting light in the second color.
[0054] It should be noted that the types of the first color and the second color are not unique; they can be the same or different, as long as they are easy to distinguish. In one embodiment, if the first color and the second color are the same, then to facilitate differentiation, their light emission modes can be set to be the same. For example, when the first electrode is positive, the first unidirectional light-emitting component 100 is constantly lit in green, while when the second electrode is positive, the second unidirectional light-emitting component 200 flashes in green.
[0055] In another embodiment, to facilitate differentiation by color, the first color and the second color can be set differently. For example, the first color can be set to green and the second color can be set to red.
[0056] The aforementioned cell polarity identification device is configured with a first unidirectional light-emitting component 100 and a second unidirectional light-emitting component 200 connected in reverse parallel, and a first alarm component 300 is connected in series in the branch where the second unidirectional light-emitting component 200 is located, forming a unidirectional structure. In a practical scenario, the first end of the first unidirectional light-emitting component 100 and the second end of the unidirectional structure are connected together to the first pole of the cell under test, and the second end of the first unidirectional light-emitting component 100 and the first end of the unidirectional structure are connected together to the second pole of the cell under test. If the first pole is positive (and the second pole is negative), then the first unidirectional light-emitting component 100 is turned on, the unidirectional structure is turned off, and the first unidirectional light-emitting component 200 emits light in the first color. If the second pole is positive (and the first pole is negative), then the unidirectional structure is turned on, the first unidirectional light-emitting component 100 is turned off, and the second unidirectional light-emitting component 200 emits light in the second color, and the first alarm component 300 outputs a first audible alarm signal. This solution allows for dual verification to identify the positive and negative terminals of the battery cell under test, based on different light colors and the presence of audible alarm signals. Compared to measuring voltage values with a multimeter, it can identify the cells through sound and light, effectively mitigating the phenomenon of reversed cell discharge during battery assembly and thus reducing the occurrence of large-area short circuits, overheating, fires, and explosions caused by reversed cell discharge.
[0057] Please see Figure 2 In some embodiments, the first unidirectional light-emitting component 100 includes a first light-emitting unit D1, the input terminal of the first light-emitting unit D1 is used to connect to a first electrode, and the output terminal of the first light-emitting unit D1 is used to connect to a second electrode.
[0058] Specifically, a light-emitting unit is a device, apparatus, or circuit that emits light when current flows in from the input terminal and out from the output terminal to form a closed loop. Correspondingly, the first light-emitting unit D1 is a device, apparatus, or circuit that emits light in a first color when current flows in from the input terminal and out from the output terminal to form a closed loop.
[0059] It should be noted that the structure and type of the light-emitting unit are not unique. In one embodiment, a single device can be used as the light-emitting unit to achieve unidirectional light emission, such as a light-emitting diode, a laser diode, or an organic light-emitting diode, etc., without specific limitations. In another embodiment, a bidirectional light-emitting device and a unidirectional switch can be used to construct the light-emitting unit. For example, a light bulb equipped with a filter (which can display a color matching the filter) serves as a bidirectional light-emitting device, and a diode serves as a unidirectional switch. The anode of the diode is used as the input terminal of the first light-emitting unit D1, the cathode of the diode is connected to one end of the bulb, and the other end of the bulb serves as the output terminal of the first light-emitting unit D1.
[0060] For ease of understanding of the technical solution of this application, the light-emitting unit can be understood as a light-emitting diode (LED) in the following text. Accordingly, the input terminal of the light-emitting unit is the anode of the LED, and the output terminal of the light-emitting unit is the cathode of the LED.
[0061] It should be noted that the color of the first light-emitting unit D1 is not unique and can be selected according to actual needs. For example, the first light-emitting unit D1 can be a light-emitting unit that emits green light.
[0062] The above scheme uses light-emitting units to build a first unidirectional light-emitting component 100. By utilizing the unidirectional conduction characteristics of the light-emitting units, it can achieve the function of emitting light in the first color when the first electrode is positive. It has the advantages of simple structure and saving the cost and volume of light-emitting components.
[0063] Please refer to the following: Figure 3 In some embodiments, the first unidirectional light-emitting component 100 further includes a first current-limiting device R1; the input terminal of the first light-emitting unit D1 is connected to the first electrode through the first current-limiting device R1, and / or the output terminal of the first light-emitting unit D1 is connected to the second electrode through the first current-limiting device R1.
[0064] Specifically, a current-limiting device is a device that can limit the magnitude of the current flowing through it. In this embodiment, a first current-limiting device R1 can be set at the output and / or input terminals of the first light-emitting unit D1, thereby limiting the magnitude of the current flowing through the first unidirectional light-emitting component 100 and reducing the power consumption of the battery cell under test.
[0065] It should be noted that the type of the first current-limiting device R1 is not unique; it can be a resistor, an adjustable resistor, an inductor, etc., and there is no specific limitation. For example, in one embodiment, the first current-limiting device R1 is selected as a resistor, which can be a single resistor or a resistor assembly formed by multiple resistors connected in series and / or in parallel, and there is no specific limitation. It can be understood that the resistance value is not unique; it can be selected based on the cell voltage. For example, a 10 kΩ resistor can be selected.
[0066] The above scheme can also connect a first current limiting device R1 in series at the output or input terminal of the first light-emitting unit D1 to limit the current flowing through the first light-emitting unit D1, thereby significantly reducing the power consumption of the battery cell under test during polarity identification.
[0067] Please see Figure 4 In some embodiments, the second unidirectional light-emitting component 200 includes a second light-emitting unit D2; the input terminal of the second light-emitting unit D2 is connected to the second pole through the first alarm component 300, and the output terminal of the second light-emitting unit D2 is used to connect to the first pole; or, the output terminal of the second light-emitting unit D2 is connected to the first pole through the first alarm component 300, and the input terminal of the second light-emitting unit D2 is used to connect to the second pole.
[0068] Specifically, the second unidirectional light-emitting component 200 includes a second light-emitting unit D2, and correspondingly, the first alarm component 300 can be set at the output or input terminal of the second light-emitting unit D2. Thus, when the second light-emitting unit D2 is turned on and illuminates, the first alarm component 300 can output a first audible alarm signal, and when the second light-emitting unit D2 is turned off in reverse, the first alarm component 300 will not issue an audible alarm.
[0069] It should be noted that the structure of the second light-emitting unit D2 is similar to that of the first light-emitting unit D1. Its light-emitting unit can be a single device, such as a light-emitting diode, a laser diode, or an organic light-emitting diode, or it can be a combination circuit of a bidirectional light-emitting device and a unidirectional switching device, which will not be elaborated here.
[0070] It is understood that the emission color of the second light-emitting unit D2 is not unique; it can be selected based on actual needs. In one embodiment, it can be different from the emission color of the first light-emitting unit D1. For example, the second light-emitting unit D2 can be a red light-emitting unit.
[0071] The above scheme sets the structure of the second unidirectional light-emitting component 200 the same as that of the first unidirectional light-emitting component 100. Both are formed by building light-emitting units. By utilizing the unidirectional conduction characteristics of the light-emitting units, the function of emitting light in the second color when the second electrode is the positive electrode can be realized. It has the advantages of simple structure and saving the cost and volume of light-emitting components.
[0072] Please refer to the following: Figure 5 In some embodiments, the second unidirectional light-emitting component 200 further includes a second current-limiting device R2, and the first alarm component 300, the second current-limiting device R2 and the second light-emitting unit D2 are connected in series.
[0073] Specifically, similar to the first unidirectional light-emitting component 100 described above, the second unidirectional light-emitting component 200 may further include a second current-limiting device R2 connected in series with the second light-emitting unit D2 and the first alarm component 300. By setting the second current-limiting device R2, if the second electrode of the battery cell under test is positive, the current flowing through it can be limited when the second unidirectional light-emitting component 200 is turned on, thereby reducing the energy consumption of the battery cell under test.
[0074] In the above scheme, a second current limiting device R2 is further connected in series in the series branch of the first alarm component 300 and the second light-emitting unit D2 to limit the current flowing through the light-emitting unit, thereby further reducing the power consumption of the battery cell under test while ensuring the operation of the first alarm component 300 and the second light-emitting unit D2.
[0075] Please see Figure 6In some embodiments, the cell polarity identification device further includes a second alarm component 400, which is connected in series with the first unidirectional light-emitting component 100, and the first end formed by the series connection is used to connect to the first pole, and the second end formed by the series connection is used to connect to the second pole; the second alarm component 400 is used to output a second audible alarm signal when the first pole is positive.
[0076] Specifically, the second audible alarm signal differs from the first audible alarm signal. This difference can be due to different output sound attributes (pitch, timbre, or loudness) or different output sound methods (such as the duration of the alarm). No specific limitation is imposed. By connecting the second alarm component 400 in series with the first unidirectional light-emitting component 100, when the first electrode is positive, identification can be achieved through both the first color of light emission and the second audible alarm signal, reducing the occurrence of false identification or incorrect identification.
[0077] The above scheme can also connect a second alarm component 400 in series with the first unidirectional light-emitting component 100. In this way, when the first electrode is positive, it can not only emit light in the first color, but also output a second sound alarm signal to remind, further reducing the occurrence of reverse discharge of cells during battery assembly and improving assembly safety.
[0078] It should be noted that the type of alarm component is not unique. Any device that can output an audible alarm signal when powered on and not output an audible alarm signal when powered off is acceptable. In some embodiments, the first alarm component 300 includes a buzzer.
[0079] Specifically, a buzzer is an integrated electronic sounder powered by DC voltage. It includes piezoelectric buzzers and electromagnetic buzzers, and the appropriate type can be selected based on actual needs.
[0080] The above solution uses a buzzer as the first alarm component 300, which has the advantages of high sound recognition, low cost, and easy installation and maintenance.
[0081] It should be noted that the type of alarm component is not unique and is not limited to the buzzer in the above embodiments. It can also be a voice alarm, an electric bell alarm, etc. There is no specific limitation. It can be understood that the type of the second alarm component 400 is also not unique. It can be the same as or different from the first alarm component 300. There is no specific limitation.
[0082] In some embodiments, the first alarm component 300 includes a connected processor and a buzzer; the first end of the second unidirectional light-emitting component 200 is used to connect to the second pole, and the second end of the second unidirectional light-emitting component 200 is connected to the first pole through the processor; or, the second end of the second unidirectional light-emitting component 200 is used to connect to the first pole, and the first end of the second unidirectional light-emitting component 200 is connected to the second pole through the processor.
[0083] Specifically, a processor is a device that can adjust parameters such as the frequency of the electrical signal output to the buzzer according to actual needs, thereby changing the buzzer's sound generation method or the sound attributes it emits. In this embodiment, the processor is connected in series with the second unidirectional light-emitting component 200. When the second unidirectional light-emitting component 200 is conducting in one direction, that is, when the second electrode is positive, the processor converts the input electrical energy into electrical energy of a suitable frequency or magnitude according to design requirements, thereby driving the buzzer.
[0084] The above solution uses a processor and a buzzer to form the first alarm component 300. In this way, the drive signal output by the processor can be adjusted according to the needs, thereby changing the alarm mode of the first alarm component 300 and effectively improving the adaptability and applicability of the first alarm component 300.
[0085] It should be noted that, in another embodiment, the second alarm component 400 may be configured to include a processor and a buzzer. In this way, when the cell polarity identification device passes by, including the first alarm component 300 and the second alarm component 400, the processor can change the sound signal output mode of the two to distinguish them.
[0086] To facilitate understanding of the technical solution of this application, the following detailed embodiments will be used to explain and illustrate this application.
[0087] The battery cell polarity identification device includes a first unidirectional light-emitting component 100, a first alarm component 300, and a second unidirectional light-emitting component 200. The first unidirectional light-emitting component 100 includes a first light-emitting unit D1 connected in series with a first current-limiting resistor. The first light-emitting unit D1 is a light-emitting diode emitting a first color. The second unidirectional light-emitting component 200 includes a second light-emitting unit D2 connected in series with a second current-limiting resistor. The first alarm component 300 includes a buzzer connected in series between the second light-emitting unit D2 and the second current-limiting resistor. The second light-emitting unit D2 is a light-emitting diode emitting a second color. The input terminal of the first light-emitting unit D1 is connected to the first pole of the battery cell under test through the first current-limiting resistor. The output terminal of the second light-emitting unit D2 is connected to the first pole of the same battery cell under test. The output terminal of the first light-emitting unit D1 is connected to the second pole of the same battery cell under test. The input terminal of the second light-emitting unit D2 is connected to the second pole of the same battery cell under test after being connected in series with the buzzer and the second current-limiting resistor.
[0088] If the first electrode is positive (and the second electrode is negative), then the first light-emitting unit D1 is forward-biased and emits green light, while the second light-emitting unit D2 and the buzzer remain inactive. If the second electrode is positive (and the first electrode is positive), then the second light-emitting unit D2 is forward-biased and emits red light, and the buzzer sounds an alarm, while the first light-emitting unit D1 remains inactive. Thus, the positive and negative electrodes of the battery cell under test can be identified by the different colors of the emitted light or the presence or absence of an audible alarm.
[0089] Please see Figure 7 This application also provides a cell polarity identification device, including a lifting mechanism 701 and a carrying mechanism 702 arranged opposite to each other, and a plurality of cell polarity identification devices as described above. The cell polarity identification devices are disposed on the lifting mechanism 701, the carrying mechanism 702 is used to place the cell to be tested, and the lifting mechanism 701 is used to drive the cell polarity identification device to dock with the cell to be tested, so as to realize the polarity identification of multiple cells to be tested.
[0090] Specifically, the structure and implementation of the cell polarity identification device are as shown in the above embodiments and accompanying drawings, and will not be repeated here. The lifting mechanism 701 is a device capable of lifting and lowering according to testing requirements, thereby enabling the cell polarity identification device to connect with the cell under test. The supporting mechanism 702 is a device used to place the cell under test. In this embodiment, considering that the polarity identification of each cell under test is independent, multiple cell polarity identification devices can be placed in the lifting mechanism 701, and the number of cells under test placed in the supporting mechanism 702 can be less than or equal to the number of cell polarity identification devices. Thus, the polarity identification of multiple cells under test can be achieved through a single lifting and lowering operation.
[0091] The above solution can be implemented by setting multiple cell polarity identification devices in the lifting mechanism 701. In this way, under the drive of the lifting mechanism 701, the polarity identification of multiple cells to be tested can be realized at one time, effectively improving the polarity identification efficiency.
[0092] It is understood that in other embodiments, the cell polarity identification device may also include a bracket, with the lifting mechanism 701 and the bearing mechanism 702 respectively disposed on the bracket, which is not limited here.
[0093] Please refer to the following: Figure 8 In some embodiments, the cell polarity identification device further includes a spring probe 703, which is disposed on the side of the lifting mechanism 701 near the bearing mechanism 702. In the same cell polarity identification device, the first end of the first unidirectional light-emitting component 100 and the second end of the unidirectional structure are connected to the first spring probe, and the second end of the first unidirectional light-emitting component 100 and the first end of the unidirectional structure are connected to the second spring probe. The first spring probe is used to connect to the first pole of the cell under test, and the second spring probe is used to connect to the second pole of the same cell under test.
[0094] Specifically, the spring probe 703, also known as a pogo pin or spring-loaded pin, is an electronic connection device with a spring-loaded mechanism. It typically consists of a needle tip, a spring, and a tube. The tube encloses the spring and needle tip, providing protection and guidance. When the spring probe 703 contacts the battery cell under test, the spring is compressed, generating a contact force. This force ensures good contact between the needle tip and the first and second poles of the battery cell, achieving a stable electrical connection and improving the stability of polarity testing. When the external force is removed, the spring returns to its original shape, returning the probe to its initial position.
[0095] The above solution uses a spring probe 703 to connect with the battery cell under test, which can effectively reduce the possibility of damaging the battery cell under test during the descent of the lifting mechanism 701, and improve the stability and safety of polarity testing.
[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A battery cell polarity identification device, characterized in that, include: A first unidirectional light-emitting component, wherein a first end of the first unidirectional light-emitting component is used to connect to the first electrode of the battery cell under test, and a second end of the first unidirectional light-emitting component is used to connect to the second electrode of the battery cell under test; the first unidirectional light-emitting component is used to emit light in a first color when the first electrode is positive. First alarm component; The second unidirectional light-emitting component is connected in series with the first alarm component to form a unidirectional structure. The first end of the unidirectional structure is used to connect to the second electrode, and the second end of the unidirectional structure is used to connect to the first electrode. The unidirectional structure is used to emit light in a second color and output a first sound alarm signal when the second electrode is positive.
2. The cell polarity identification device according to claim 1, characterized in that, The first unidirectional light-emitting component includes a first light-emitting unit, the input terminal of which is used to connect to the first electrode, and the output terminal of which is used to connect to the second electrode.
3. The cell polarity identification device according to claim 2, characterized in that, The first unidirectional light-emitting component further includes a first current-limiting device; The input terminal of the first light-emitting unit is connected to the first electrode through the first current-limiting device, and / or the output terminal of the first light-emitting unit is connected to the second electrode through the first current-limiting device.
4. The cell polarity identification device according to claim 1, characterized in that, The second unidirectional light-emitting component includes a second light-emitting unit; The input terminal of the second light-emitting unit is connected to the second pole through the first alarm component, and the output terminal of the second light-emitting unit is used to connect to the first pole; or, the output terminal of the second light-emitting unit is connected to the first pole through the first alarm component, and the input terminal of the second light-emitting unit is used to connect to the second pole.
5. The cell polarity identification device according to claim 4, characterized in that, The second unidirectional light-emitting component also includes a second current-limiting device, and the first alarm component, the second current-limiting device and the second light-emitting unit are connected in series.
6. The cell polarity identification device according to any one of claims 1-5, characterized in that, The cell polarity identification device further includes a second alarm component, which is connected in series with the first unidirectional light-emitting component. The first end of the series connection is used to connect to the first pole, and the second end of the series connection is used to connect to the second pole. The second alarm component is used to output a second audible alarm signal when the first pole is positive.
7. The cell polarity identification device according to any one of claims 1-5, characterized in that, The first alarm component includes a buzzer.
8. The cell polarity identification device according to any one of claims 1-5, characterized in that, The first alarm component includes a connected processor and a buzzer; The first end of the second unidirectional light-emitting component is used to connect to the second electrode, and the second end of the second unidirectional light-emitting component is connected to the first electrode through the processor; or, The second end of the second unidirectional light-emitting component is used to connect to the first electrode, and the first end of the second unidirectional light-emitting component is connected to the second electrode through the processor.
9. A battery cell polarity identification device, characterized in that, The device includes a lifting mechanism and a carrying mechanism arranged opposite to each other, and a plurality of cell polarity identification devices as described in any one of claims 1-8. The cell polarity identification device is disposed on the lifting mechanism, the carrying mechanism is used to place the cell to be tested, and the lifting mechanism is used to drive the cell polarity identification device to dock with the cell to be tested, so as to realize the polarity identification of a plurality of cells to be tested.
10. The cell polarity identification device according to claim 9, characterized in that, The cell polarity identification device further includes a spring probe, which is disposed on the side of the lifting mechanism near the bearing mechanism. In the same cell polarity identification device, the first end of the first unidirectional light-emitting component and the second end of the unidirectional structure are connected to the first spring probe, and the second end of the first unidirectional light-emitting component and the first end of the unidirectional structure are connected to the second spring probe. The first spring probe is used to connect to the first pole of the cell under test, and the second spring probe is used to connect to the second pole of the same cell under test.