Battery pack aging equalization equipment

Abstract

The utility model discloses a battery pack aging equalization device, which is used for supplementing the capacity of single cells connected in series so as to enable the capacity of the single cells to be consistent, and comprises a charging port, a discharging port, an equalization module, a voltage acquisition module, a gating module and an MCU (Microprogrammed Control Unit) chip, one end of the charging port and one end of the discharging port are respectively connected with the MCU chip, the positive electrode of the charging port is used for being connected with the negative electrode of the first single cell, and the negative electrode of the discharging port is used for being connected with the positive electrode of the last single cell; one end of the equalization module is connected with the cathode of the first single cell, the other end of the equalization module is connected with the anode of the last single cell, one end of the gating module is connected with the equalization module, and the other end of the gating module is respectively connected with the anodes of the plurality of single cells. The device has the advantages that the single cells are charged and discharged, meanwhile, the real capacity of the single cells can be detected, the capacity of each single cell in the whole group of cells is kept consistent, the service life of the battery is prolonged, and the safety risk is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of battery module aging equipment, and in particular to a battery pack aging equalization device. Background Technology

[0002] During use, battery packs may experience cell capacity decay and inconsistent voltage differences between individual cells, leading to abnormal overall battery capacity.

[0003] Existing battery module aging equipment only charges and discharges the total capacity of the battery pack, and cannot balance the capacity of individual cells within the module. When the entire battery pack is charged and discharged, a certain cell may malfunction, leading to a severe decrease in the overall battery capacity, and in severe cases, even a fire. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a battery pack aging equalization device to address the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] A battery pack aging equalization device is disclosed for supplementing the capacity of series-connected individual battery cells to ensure uniform capacity. The device includes a charging port, a discharging port, an equalization module, a voltage acquisition module, a gating module, and an MCU chip. One end of the charging port and the discharging port are respectively connected to the MCU chip. The positive terminal of the charging port is connected to the negative terminal of the first individual battery cell, and the negative terminal of the discharging port is connected to the positive terminal of the last individual battery cell. One end of the equalization module is connected to the negative terminal of the first individual battery cell, and the other end is connected to the positive terminal of the last individual battery cell. One end of the gating module is connected to the equalization module, and the other end is used to connect to the positive terminals of several individual battery cells. One end of the voltage acquisition module is connected to the gating module, and the other end is connected to the MCU chip.

[0007] A preferred embodiment is that the battery pack aging equalization device also includes a temperature acquisition module, which is connected to the MCU chip, and the other end is used to contact the individual battery cells.

[0008] A preferred embodiment is that the battery pack aging equalization device also includes a display control module, which is communicatively connected to the MCU chip.

[0009] A preferred embodiment is that the battery pack aging equalization device also includes a buzzer module, which is connected to the MCU chip.

[0010] The battery pack aging equalization device provided in this embodiment of the invention has at least the following beneficial effects: high-capacity individual cells can accurately replenish low-capacity individual cells, ensuring that each individual cell is fully charged, maintaining the capacity difference between individual cells within the pack at a consistent level, thereby eliminating the bottleneck effect of individual cells and restoring the capacity of the cell pack to near factory level. This invention can simultaneously charge and discharge individual cells and perform actual capacity testing on them, ensuring consistent capacity of each individual cell in the entire pack, increasing battery life, and reducing safety risks.

[0011] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the present invention. Figure 2 . Detailed Implementation

[0014] To illustrate the ideas and objectives of this application, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0015] 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 belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," "left," "right," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] 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.

[0017] like Figure 1 and Figure 2 As shown, a battery pack aging equalization device is used to supplement the capacity of individual battery cells 8 connected in series, so that the capacity of the individual battery cells 8 is consistent. It includes a charging port 1, a discharging port 2, an equalization module 3, a voltage acquisition module 5, a gating module 6, and an MCU chip 7. One end of the charging port 1 and the discharging port 2 are respectively connected to the MCU chip 7. The positive terminal of the charging port 1 is used to connect to the negative terminal of the first individual battery cell 8, and the negative terminal of the discharging port 2 is used to connect to the positive terminal of the last individual battery cell 8. One end of the equalization module 3 is used to connect to the negative terminal of the first individual battery cell 8, and the other end is used to connect to the positive terminal of the last individual battery cell 8. One end of the gating module 6 is connected to the equalization module 3, and the other end is used to connect to the positive terminals of several individual battery cells 8. One end of the voltage acquisition module 5 is connected to the gating module 6, and the other end is connected to the MCU chip 7.

[0018] like Figure 1 and Figure 2 As shown, the voltage acquisition module 5 can acquire the capacity of a certain single cell 8. When the capacity of the single cell 8 is lower than that of other single cells 8, the MCU chip 7 transmits the voltage of the single cell 8 with the higher capacity to the single cell 8 with the lower capacity through the charging port 1.

[0019] like Figure 1 and Figure 2 As shown, the high-capacity individual cell 8 can precisely replenish the low-capacity individual cell 8, ensuring that each individual cell 8 is fully charged. This maintains a consistent level of charge variation among the individual cells 8 within the group, eliminating the bottleneck effect of individual cells 8 and restoring the group's capacity to near factory specifications. This invention not only charges and discharges the individual cells 8 but also performs actual capacity testing on them, ensuring consistent capacity across the entire group, increasing battery life, and reducing safety risks.

[0020] like Figure 1 and Figure 2 As shown, the battery pack aging equalization device also includes a temperature acquisition module 11, which is connected to the MCU chip 7, and the other end is used to contact the individual battery cell 8.

[0021] like Figure 1 and Figure 2 As shown, the temperature acquisition module 11 can acquire the AC impedance temperature of a single cell 8.

[0022] like Figure 1 and Figure 2 As shown, the battery pack aging equalization device also includes a display control module 9, which is connected to the MCU chip 7.

[0023] like Figure 1 and Figure 2As shown, the battery pack aging equalization device also includes a buzzer module 10, which is connected to the MCU chip 7.

[0024] The above are specific embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A battery pack aging equalization device for supplementing the capacity of series-connected individual cells to ensure consistent capacity among the individual cells, characterized in that, It includes charging port, discharging port, equalization module, voltage acquisition module, gating module and MCU chip; one end of the charging port and discharging port is connected with the MCU chip respectively, the positive pole of the charging port is used for connecting with the negative pole of the first single battery cell, the negative pole of the discharging port is used for connecting with the positive pole of the last single battery cell; one end of the equalization module is used for connecting with the negative pole of the first single battery cell, the other end is used for connecting with the positive pole of the last single battery cell, one end of the gating module is connected with the equalization module, the other end is used for connecting with the positive pole of the single battery cell respectively, one end of the voltage acquisition module is connected with the gating module, the other end is connected with the MCU chip.

2. The battery pack equalization device according to claim 1, wherein The battery pack aging equalization device further comprises a temperature acquisition module, which is connected with the MCU chip and used for contacting the single battery cell.

3. The battery pack equalization device according to claim 1 or 2, characterized by, The battery pack aging equalization device further comprises a display control module, which is in communication connection with the MCU chip.

4. The battery pack equalization device according to claim 1, wherein The battery pack aging equalization device further comprises a buzzer module, which is connected with the MCU chip. The battery pack aging equalization device further comprises a display control module, which is in communication connection with the MCU chip.

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