Safe equalization circuit
By designing an equalization circuit that converts electrical energy into light energy, using indicator LED1 and transistor QA1, the problems of low efficiency and high safety risks of balance circuits in the prior art are solved, and safer and more efficient equalization processing is achieved.
Patent Information
- Application Number
- CN202420383870.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-28
AI Technical Summary
In the prior art, the equalization circuit is converted into thermal energy through electrical energy, which has low efficiency and high safety risks, and the equalization current can only be very small and has very low efficiency, which affects the safety of the equalization circuit.
A safer equalization circuit is designed to convert electric energy into light energy by converting electric energy into light energy, and using indicator LED1 and transistor QA1 to convert electric energy into light energy and consume it, thereby achieving a safer equalization processing.
It realizes a balanced circuit with fast progress, high accuracy, low cost and safer, effectively solving the problem of large unsafe heating of the balanced circuit.
Smart Images
Figure CN222484328U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy, in particular to a safer balancing circuit. Background Art
[0002] During the manufacturing and production process of batteries, the consistency of each single cell in the battery cannot be guaranteed. During the daily use of the battery, due to the different heat dissipation of single cells at different positions in the battery, the difference between the single cells in the battery will become larger, and the voltage of each cell will also be different, so balancing is required.
[0003] At present, the general balancing technology converts electrical energy into heat energy, which is inefficient and has great safety risks. In addition, the balancing current can only be very small, and the efficiency is very low, which will affect the safety of the balancing circuit. Utility Model Content
[0004] The purpose of the utility model is to provide a safer equalization circuit to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A safer balancing circuit comprises a resistor R1, a resistor R2, a transistor QA1, a diode DB1, an indicator light LED1 and a capacitor C1, wherein one end of the resistor R1 is connected to an interface B1, the resistor R2 and the resistor R3, the other end of the resistor R1 is connected to the positive electrode of the indicator light LED1, the negative electrode of the indicator light LED1 is connected to the other end of the resistor R2 and the collector of the transistor QA1, the base of the transistor QA1 is connected to the resistor RC4 and the negative electrode of the diode DB1, the other end of the resistor R3 is connected to the capacitor C1 and the chip VC1, the other end of the resistor RC4 is connected to the resistor R4, the other end of the capacitor C1 and the chip VC0, and the emitter of the transistor QA1 is connected to the other end of the resistor R4, the positive electrode of the diode DB1 and the interface B0.
[0007] As a further technical solution of the utility model: the indicator light LED1 is a light emitting diode.
[0008] As a further technical solution of the utility model: the transistor QA1 is an NPN transistor.
[0009] As a further technical solution of the utility model: the capacitor C1 is a filter capacitor.
[0010] As a further technical solution of the utility model: the interface B1 and the interface B2 are respectively connected to two groups of lithium batteries.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model provides a safer balancing circuit, which effectively solves the problem of high heat generation and unsafety of the balancing circuit, converts electrical energy into light energy, and achieves the goals of fast progress, high precision, low cost and greater safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a circuit schematic diagram of the utility model. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0015] Reference Figure 1 A safer balancing circuit includes a resistor R1, a resistor R2, a transistor QA1, a diode DB1, an indicator light LED1 and a capacitor C1, one end of the resistor R1 is connected to an interface B1, a resistor R2 and a resistor R3, the other end of the resistor R1 is connected to the positive electrode of the indicator light LED1, the negative electrode of the indicator light LED1 is connected to the other end of the resistor R2 and the collector of the transistor QA1, the base of the transistor QA1 is connected to the resistor RC4 and the negative electrode of the diode DB1, the other end of the resistor R3 is connected to the capacitor C1 and the chip VC1, the other end of the resistor RC4 is connected to the resistor R4, the other end of the capacitor C1 and the chip VC0, and the emitter of the transistor QA1 is connected to the other end of the resistor R4, the positive electrode of the diode DB1 and the interface B0.
[0016] Among them, the indicator LED1 is a light emitting diode. The transistor QA1 is an NPN transistor. The capacitor C1 is a filter capacitor. The interface B1 and the interface B2 are respectively connected to two groups of lithium batteries.
[0017] Here’s how it works:
[0018] When the battery is balanced, the chip VC0 and chip VC1 are short-circuited internally, R3 and R4 divide the voltage, and the voltage drop across RC4 and R2 is large enough to turn on QA1. The current will pass through R1 and LED1, and the electrical energy will be converted into light energy and consumed. We can also judge the battery status through the battery light, and further improve the battery performance and extend the service life.
[0019] This circuit uses the AL IBG5 series battery protection chip to detect the voltage of each battery and determine whether battery balancing is needed. The chip will short-circuit the batteries that need to be balanced and balance the batteries through an external circuit. In this process, electrical energy is converted into light energy, making the entire circuit safer.
[0020] When there is an error in the chip pins, the battery will be balanced, so that the chip pins vc0 and vc1 will be short-circuited, and the current will flow through R1 and LED1, so that the voltage of the single battery will be reduced and the battery will be balanced.
[0021] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.
[0022] In addition, it should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment have also been appropriately combined to form other implementation modes that are easy for those skilled in the art to understand.
Claims
1. A safer balancing circuit, comprising a resistor R1, a resistor R2, a transistor QA1, a diode DB1, an indicator LED1 and a capacitor C1, characterized in that: One end of the resistor R1 is connected to the interface B1, the resistor R2 and the resistor R3, the other end of the resistor R1 is connected to the positive electrode of the indicator light LED1, the negative electrode of the indicator light LED1 is connected to the other end of the resistor R2 and the collector of the transistor QA1, the base of the transistor QA1 is connected to the resistor RC4 and the negative electrode of the diode DB1, the other end of the resistor R3 is connected to the capacitor C1 and the chip VC1, the other end of the resistor RC4 is connected to the resistor R4, the other end of the capacitor C1 and the chip VC0, and the emitter of the transistor QA1 is connected to the other end of the resistor R4, the positive electrode of the diode DB1 and the interface B0.
2. A safer equalization circuit according to claim 1, characterized in that: The indicator light LED1 is a light emitting diode.
3. A safer equalization circuit according to claim 2, characterized in that: The transistor QA1 is an NPN transistor.
4. A safer equalization circuit according to claim 1, characterized in that: The capacitor C1 is a filter capacitor.
5. A safer equalization circuit according to claim 1, characterized in that: The interface B1 and the interface B2 are connected to two groups of lithium batteries respectively.