Check patentability & draft patents in minutes with Patsnap Eureka AI!

Battery equalization circuit of induction transformer

A technology of battery equalization and transformers, which is applied in charge equalization circuits, battery circuit devices, current collectors, etc. It can solve problems such as difficulty in ensuring the consistency of each winding on the primary side, difficulty in expansion, and difficulty in designing multi-winding transformers, so as to overcome the balance efficiency The effect of reducing and balancing the effect is ideal, improving efficiency and energy utilization

Pending Publication Date: 2021-11-09
SHANGHAI YUYUAN POWER TECH CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This topology has the advantages of simple operation and easy control, but when the number of battery cells is large, it is difficult to design a multi-winding transformer, it is difficult to ensure the consistency of each winding on the primary side, and there is a disadvantage that it is not easy to expand

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery equalization circuit of induction transformer
  • Battery equalization circuit of induction transformer
  • Battery equalization circuit of induction transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] see figure 1 , an inductive transformer battery balancing circuit comprising

[0036] The battery module is composed of a plurality of battery cells B connected in series;

[0037] The battery unit is composed of four connected battery cells B in the battery module;

[0038] A balanced inductance, which is composed of an energy storage inductance L, and the balanced inductance is connected in parallel with two adjacent battery cells;

[0039] A balanced transformer, which is composed of a transformer balanced primary winding N1, a transformer balanced secondary winding N2, and a transformer balanced magnetic core T, and the transformer balanced magnetic core T is arranged on the transformer balanced primary winding N1 and the transformer balanced secondary winding N2 In between, the balanced primary winding N1 of the transformer is respectively connected to the circuit of each battery cell B, and the secondary winding N2 of the balanced transformer is connected to the...

Embodiment 2

[0049] see Figure 2-6 , an inductance transformer battery equalization circuit, taking two unit segments composed of eight battery cells in series, the nth unit and the n+1th unit, as an example to describe the specific equalization process of the present invention in detail. Assuming that the voltage of a battery cell is relatively high as an exception to illustrate the specific implementation steps of equalization.

[0050] Assuming that the voltage of the nth battery cell is higher than the voltage of the n+1th battery cell, the equalization steps are as follows:

[0051] In the first step, the power switch tube S n-6 conduction, S (n+1)-6 Turn off, turn on the nth battery cell and inductor L n , part of the electricity of the nth battery cell is stored in the inductor L n in, formed as figure 2 The direction of current flow shown;

[0052] In the second step, the power switch tube S (n+1)-6 conduction, S n-6 Turn off, turn on the n+1th battery cell and inductor L...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a battery equalization circuit of an induction transformer. The circuit comprises a battery module, a battery unit, an equalization inductor and an equalization transformer; the beneficial effects of the invention are that the voltage difference between the single batteries is amplified by four times, so the voltage difference is increased, the defect that the equalization efficiency is reduced when the voltage difference between the single batteries is small in inductance equalization is overcome, and the equalization efficiency is greatly improved; a demagnetizing resistor is connected in parallel in the inductance equalization circuit, so that the equalization efficiency is prevented from being reduced due to inductance magnetization; a high-frequency filter capacitor is connected in parallel with each single battery and is used for filtering clutters in an energy transmission process; the series single batteries are equalized by a grouped transformer method, the overall circuit design is simple, the implementation is easy, and the equalization effect is ideal; and a grouping equalization circuit structure is adopted, so that the battery equalization efficiency and the energy utilization rate are greatly improved.

Description

technical field [0001] The invention relates to an equalizing circuit, in particular to an inductance transformer battery equalizing circuit, which belongs to the technical field of battery management. Background technique [0002] There must be inconsistencies in the voltage, capacity, internal resistance, etc. of the single cells in the battery pack during the manufacturing and use process, and it is a process of continuous accumulation. The longer the time, the greater the difference between the single cells; and the lithium-ion battery pack It will also be affected by the use environment, and the inconsistency of the single battery will be gradually amplified during use, resulting in accelerated degradation of the performance of some single batteries. [0003] For a series of problems caused by battery inconsistency, the use of balance management can effectively improve these problems. Balanced management refers to the direct consumption of bypass resistors to generate ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J1/02
CPCH02J7/0014H02J7/0016H02J1/02
Inventor 尚德华张伟
Owner SHANGHAI YUYUAN POWER TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com