New energy battery management system with top-up equalization and electronic identity card

Abstract

The utility model discloses a new energy battery management system with high-level balance and an electronic identity card. A first control circuit, a second control circuit, a charging and discharging circuit, a display circuit and a plurality of battery packs are arranged in an energy storage battery, the second control circuit is respectively connected with the first control circuit and the charging and discharging circuit, and the battery packs are respectively connected with the first control circuit and the second control circuit; the first control circuit collects SOC, SOE and SOH data of the battery pack and sends the SOC, SOE and SOH data to the second control circuit; the second control circuit sets an address code for identity recognition for each battery pack, and binds SOC, SOE and SOH data of the battery packs with the address codes of the battery packs; all the battery packs are charged to the consistent maximum voltage through the high-tracking operation and maintenance circuit, and all the battery packs are discharged in a balanced manner at the same time during discharging, so that the service life of the battery packs is prolonged, and the high-tracking operation and maintenance circuit has the characteristics of being ingenious in design, convenient and practical.

Description

Technical Field

[0001] This utility model relates to an energy storage device, and more particularly to a new energy battery management system with height balancing and electronic ID. Background Technology

[0002] Lithium battery energy storage devices are generally composed of several lithium batteries. Due to internal differences or different external usage conditions, the capacity of lithium batteries varies. During use, differences in electrolyte density, temperature, self-discharge level, etc. among the individual batteries in the battery pack will also cause inconsistencies. As time accumulates, the inconsistency of batteries becomes greater and greater. Inconsistency will reduce the overall capacity, shorten the battery life, limit the overall charging and discharging power, and may even affect the battery safety performance. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a new energy battery management system with high-level equalization and electronic ID card. It can effectively solve the problem of inconsistency between lithium batteries. When high-level equalization is required, the high-level equalization function can be selected by a knob switch. The high-level equalization operation and maintenance circuit charges all battery packs to the same maximum voltage. When discharging, all battery packs also discharge in an equal manner at the same time, thereby improving the service life of the battery pack. It has the characteristics of ingenious design and convenient practicality.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a new energy battery management system with height balancing and electronic ID card, including an energy storage battery, characterized in that: the energy storage battery is provided with a first control circuit, a second control circuit, a charging and discharging circuit, a display circuit and several battery packs, the second control circuit is connected to the first control circuit and the charging and discharging circuit respectively, and the battery packs are connected to the first control circuit and the second control circuit respectively.

[0005] The first control circuit is an analog front-end circuit with an AFE chip, and the second control circuit is a control circuit with an MCU chip. The first control circuit collects the SOC, SOE, and SOH data of the battery pack and sends them to the second control circuit. The second control circuit sets an address code for each battery pack for identification and binds the SOC, SOE, and SOH data of the battery pack to its address code.

[0006] Several first relays controlled by the second control circuit are provided between the second control circuit and the battery pack.

[0007] Furthermore, the second control circuit is connected to the display circuit, and the second control circuit displays the SOC, SOE, and SOH data of the battery pack on the display circuit.

[0008] Furthermore, the charging and discharging circuit is equipped with several second relays, which are controlled by a second control circuit.

[0009] This utility model adopts the above-mentioned technical solution, overcomes the shortcomings of the background technology, and provides a new energy battery management system with high-level equalization and electronic ID card. It can effectively solve the problem of inconsistency between lithium batteries. When high-level equalization is required, the high-level equalization function can be selected by the knob switch. The high-level equalization operation and maintenance circuit charges all battery packs to the same maximum voltage. When discharging, all battery packs also discharge evenly at the same time, thereby improving the service life of the battery pack. It has the characteristics of ingenious design and convenient practicality. Attached Figure Description

[0010] Figure 1 This is a circuit diagram of one embodiment of the present invention;

[0011] Figure 2 This is a structural frame diagram of an embodiment of the present utility model.

[0012] In the diagram: Energy storage battery 1, first control circuit 101, second control circuit 102, charging and discharging circuit 103, display circuit 104, battery pack 105, first relay 106, second relay 107. Detailed Implementation

[0013] The following descriptions of the embodiments are made with reference to the accompanying drawings, illustrating specific embodiments in which the present invention can be implemented. The directional terms used in this invention, such as up, down, front, back, left, right, inside, outside, side, etc., are merely for the purpose of referring to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding the present invention, and not for limiting the present invention. In the drawings, structurally similar units are indicated by the same reference numerals.

[0014] The following description, in conjunction with the accompanying drawings, further clarifies the specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit.

[0015] See appendix Figures 1 to 2 The present invention includes an energy storage battery 1, characterized in that: the energy storage battery 1 is provided with a first control circuit 101, a second control circuit 102, a charging and discharging circuit 103, a display circuit 104 and a plurality of battery packs 105, the second control circuit 102 is connected to the first control circuit 101 and the charging and discharging circuit 103 respectively, and the battery packs 105 are connected to the first control circuit 101 and the second control circuit 102 respectively;

[0016] The first control circuit 101 is an analog front-end circuit with an AFE chip, and the second control circuit 102 is a control circuit with an MCU chip. The first control circuit 101 collects the SOC, SOE, and SOH data of the battery pack 105 and sends them to the second control circuit 102. The second control circuit 102 sets an address code for each battery pack 105 for identification and binds the SOC, SOE, and SOH data of the battery pack 105 to its address code.

[0017] A plurality of first relays 106 controlled by the second control circuit 102 are provided between the second control circuit 102 and the battery pack 105.

[0018] Furthermore, the second control circuit 102 is connected to the display circuit 104, and the second control circuit 102 displays the SOC, SOE, and SOH data of the battery pack 105 on the display circuit 104.

[0019] Furthermore, the charging and discharging circuit 103 is provided with a plurality of second relays 107, which are controlled by the second control circuit 102.

[0020] If the voltages of the battery packs 105 are inconsistent, during charging, the battery pack 105 with the higher voltage will be fully charged first. If charging is then disconnected, the battery pack 105 with the lower voltage will not be fully charged. If it is forcibly charged, the higher voltage battery pack 105 will be overcharged, causing it to overheat, which is very dangerous. During discharging, the lower voltage battery pack 105 will be fully discharged first, and the discharge circuit will shut off, but the higher voltage battery pack 105 will still have some energy remaining. This continuous charging and discharging will increase the inconsistency between the battery packs 105, thus affecting the lifespan of the battery packs 105.

[0021] When a high voltage balance is required, the second control circuit 102 closes the first relay 106. The first control circuit 101 detects the voltage of all battery packs 105 and compares the voltage of all battery packs 105 with a set of independent 5V voltages. It selects the highest voltage value as the maximum voltage reference value and then closes the corresponding first relay 106 according to the address code of the battery pack 105 to charge the battery pack 105 with a voltage lower than the maximum voltage value individually. When the battery pack 105 reaches the maximum voltage value, the charging is stopped by closing the corresponding first relay 106 until the voltage values ​​of all battery packs 105 reach the same maximum voltage value. This allows all battery packs 105 to achieve consistent charging or discharging, thus returning all battery packs 105 to their optimal state and improving the service life of the battery packs 15.

[0022] Because the second control circuit 102 assigns an address code for identification to each battery pack 105 and binds the SOC, SOE, and SOH data of each battery pack 105 to its address code, it can be used to view the SOC, SOE, and SOH data of a specific battery pack 105 by directly selecting its address code through a wired or wirelessly connected controller, portable device, or remote control network backend. This facilitates remote monitoring and maintenance. If a battery pack 105 malfunctions, its address code can be used to quickly locate it for repair or replacement.

[0023] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A new energy battery management system with a high pursuit balance and an electronic identity card, comprising an energy storage battery, characterized in that: The energy storage battery is internally provided with a first control circuit, a second control circuit, a charge-discharge circuit, a display circuit and a plurality of battery groups, the second control circuit is connected with the first control circuit and the charge-discharge circuit respectively, and the battery groups are connected with the first control circuit and the second control circuit respectively; The first control circuit is an analog front-end circuit with an AFE chip, the second control circuit is a control circuit with an MCU chip, the first control circuit collects SOC, SOE and SOH data of the battery groups and sends the data to the second control circuit; the second control circuit sets an address code for identity recognition for each battery group, and binds the SOC, SOE and SOH data of the battery group with the address code thereof; A plurality of first relays controlled by the second control circuit are arranged between the second control circuit and the battery groups.

2. The new energy battery management system with high pursuit equalization and electronic identity card according to claim 1, characterized in that: The second control circuit is connected with the display circuit, and the second control circuit displays the SOC, SOE and SOH data of the battery groups on the display circuit.

3. The new energy battery management system with high pursuit equalization and electronic identity card according to claim 1, characterized in that: A plurality of second relays are arranged on the charge-discharge circuit, and the second relays are controlled by the second control circuit.

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