Title:
EXPLOSION-PROOF CIRCUIT, CHARGING CIRCUIT AND CHARGING/DISCHARGING PROTECTION CIRCUIT OF BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/172710
Kind Code:
A1
Abstract:
An explosion-proof circuit, charging circuit and charging/discharging protection circuit of a battery. In the explosion-proof circuit and charging circuit of the battery, when a load is short-circuited, the voltage at the output end of a power electronic switch (Q1) is close to the voltage of the negative electrode of the battery, the voltage is divided by a control resistor (R9) and a feedback resistor (R15), so that a feedback control switch (Q3) is switched on, thus enabling the power electronic switch (Q1) to be in a cut-off state, and the load current is cut off to protect the power electronic switch (Q1) from damage; and meanwhile, the electric quantity of the battery is released in a relatively small safe current by a current limiting resistor (R7), the control resistor (R9) and the feedback resistor (R15), thereby avoiding the problem that the battery generates secondary hazards due to the fact that the electric quantity of the battery is stored in the battery and cannot be released. Since it is not necessary to give an accurate reference voltage, it is guaranteed that the circuit can reliably limit the load current, and it will not cause all the power consumption to be loaded on the electronic switch, which would result in overheating and damaging of the electronic switch.
More Like This:
| JPH04317514 | SURGE CURRENT PREVENTING CIRCUIT |
| JP2000100603 | MANUFACTURE OF PTC RESISTOR BODY AND SWITCH INCLUDING THE SAME |
| WO/2006/006769 | ELECTRONIC APPARATUS |
Inventors:
SONG XIAOPING (CN)
MA AANG (CN)
LI FENGSHI (CN)
MA AANG (CN)
LI FENGSHI (CN)
Application Number:
PCT/CN2015/078782
Publication Date:
November 19, 2015
Filing Date:
May 12, 2015
Export Citation:
Assignee:
BEIJING TOCEL ELECTRONICS CO LTD (CN)
International Classes:
H02H9/02; H02H7/18; H02J7/00
Foreign References:
| CN103618014A | 2014-03-05 | |||
| CN101916887A | 2010-12-15 | |||
| CN203104067U | 2013-07-31 | |||
| CN203826946U | 2014-09-10 | |||
| CN103956721A | 2014-07-30 | |||
| CN204216632U | 2015-03-18 | |||
| CN204205573U | 2015-03-11 | |||
| CN203063859U | 2013-07-17 | |||
| CN102025177A | 2011-04-20 | |||
| CN200973022Y | 2007-11-07 | |||
| CN102111007A | 2011-06-29 | |||
| CN101908755A | 2010-12-08 | |||
| US20130148246A1 | 2013-06-13 | |||
| US5343137A | 1994-08-30 |
Other References:
See also references of EP 3145043A4
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD (CN)
北京三聚阳光知识产权代理有限公司 (CN)
北京三聚阳光知识产权代理有限公司 (CN)
Download PDF: