WO2019033629A1 - 充电控制电路、电池装置和电子烟 - Google Patents

充电控制电路、电池装置和电子烟 Download PDF

Info

Publication number
WO2019033629A1
WO2019033629A1 PCT/CN2017/115020 CN2017115020W WO2019033629A1 WO 2019033629 A1 WO2019033629 A1 WO 2019033629A1 CN 2017115020 W CN2017115020 W CN 2017115020W WO 2019033629 A1 WO2019033629 A1 WO 2019033629A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
ith
control unit
battery pack
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/115020
Other languages
English (en)
French (fr)
Inventor
邱伟华
刘光泽
刘建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Paiteng Electronic Technology Co Ltd
Original Assignee
Changzhou Paiteng Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Paiteng Electronic Technology Co Ltd filed Critical Changzhou Paiteng Electronic Technology Co Ltd
Publication of WO2019033629A1 publication Critical patent/WO2019033629A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Definitions

  • the utility model relates to the field of electronic technology, in particular to a charging control circuit, a battery device and an electronic cigarette.
  • a plurality of batteries are usually connected in series to obtain a battery pack, and the battery pack can provide a higher voltage for the electronic device.
  • the internal resistances of the plurality of batteries are often different, and therefore, during the charging process of the battery pack, the plurality of batteries
  • the voltage of the battery with higher internal resistance is higher, and the voltage of the battery with lower internal resistance is lower, which causes the battery with less internal resistance to be insufficiently charged.
  • the phenomenon that the battery is overcharged with a large resistance, long-term undercharge or overcharge will reduce the service life of the battery pack. Therefore, there is a need for a charge control circuit that can prevent the battery in the battery pack from being undercharged or overcharged.
  • the present invention provides a charging control circuit, a battery device, and an electronic cigarette.
  • the technical solution is as follows:
  • a charge control circuit comprising: a battery pack, a control unit, at least N resistors, and N switch units, the battery pack comprising N batteries in series, wherein the N is An integer greater than or equal to 2;
  • the i-th switch control end of the control unit is connected to the control end of the i-th switch unit of the N switch units, and the i-th voltage detection end of the control unit and the i-th of the N batteries
  • the anode of the battery is connected, the N+1th voltage detecting end of the control unit is connected to the negative pole of the battery pack, and the N+1th voltage detecting end of the control unit is grounded;
  • At least one resistor is connected in series between the first end of the ith switch unit and the anode of the ith battery, and the second end of the ith switch unit is connected to the cathode of the ith battery.
  • the i is large An integer equal to or equal to 1 and less than or equal to N;
  • the control unit is configured to detect voltages of the N batteries, and control turning on or off of at least one of the N switching units based on voltages of the N batteries.
  • each of the N switch units is a UMC3N chip.
  • the ith switch unit comprises at least one of a triode, a MOS (Metal-Oxide-Semiconductor) tube, and a relay.
  • a triode a triode
  • MOS Metal-Oxide-Semiconductor
  • the ith switch unit when the ith switch unit includes a triode, a base of the triode is connected to an ith switch control end of the control unit, and a first pole of the triode and the ith battery At least one resistor is connected in series between the positive poles, and the second pole of the triode is connected to the cathode of the ith battery.
  • the ith switch unit includes a MOS transistor
  • a gate of the MOS transistor is connected to an i-th switch control end of the control unit, and a first pole of the MOS transistor and the first At least one resistor is connected in series between the positive electrodes of the i batteries, and the second pole of the MOS transistor is connected to the negative electrode of the i-th battery.
  • the ith switch unit when the ith switch unit includes a relay, one end of the coil in the relay is connected to an ith switch control end of the control unit, and the other end of the coil in the relay is grounded, the relay At least one resistor is connected in series between the first contact and the anode of the ith battery, and the second contact of the relay is connected to the cathode of the ith battery.
  • the anode of the battery pack is connected to the anode of the external power source, and the cathode of the battery pack is connected to the cathode of the external power source;
  • control unit when the control unit detects that the voltage of the ith battery is greater than or equal to a preset voltage, controlling the ith switch unit to be turned on.
  • the anode of the battery pack is connected to the anode of the external power source, and the cathode of the battery pack is connected to the cathode of the external power source;
  • control unit controls the ith switch unit to be turned on, when the control unit detects that the voltage of the ith battery is less than a preset voltage, the ith switch unit is controlled to be turned off.
  • the anode of the battery pack is connected to the anode of the external power source, and the cathode of the battery pack is connected to the cathode of the external power source;
  • control unit when the control unit detects that a voltage difference between a voltage of the ith battery and a minimum voltage of voltages of the N batteries is greater than or equal to a preset voltage difference, controlling the ith switch The unit is turned on.
  • the anode of the battery pack is connected to the anode of the external power source, and the cathode of the battery pack is connected to the cathode of the external power source;
  • the control unit controls the ith switch unit to be turned on, when the control unit detects a voltage difference between a voltage of the ith battery and a minimum voltage of voltages of the N batteries When the preset voltage difference is smaller than the preset voltage difference, the ith switch unit is controlled to be turned off.
  • a battery device comprising the charge control circuit of the first aspect described above.
  • an electronic cigarette comprising an atomizer and the battery device provided by the second aspect above.
  • the charging control circuit comprises a battery pack, a control unit, at least N resistors and N switching units, and the battery pack comprises N batteries in series.
  • the control unit may detect the voltages of the N batteries, and control the turning on or off of at least one of the N switching units based on the voltages of the N batteries, thereby enabling at least N of the N batteries.
  • the charging current of one battery is controlled to realize the control of the voltage of the at least one battery to avoid overcharging of the at least one battery.
  • the charging control circuit can effectively achieve balanced charging of the battery pack through the control unit, the plurality of resistors, and the N switching units, thereby greatly extending the service life of the battery pack and shortening the charging time of the battery pack. Improve the efficiency of battery pack use.
  • FIG. 1 is a schematic structural diagram of a first charging control circuit according to an embodiment of the present invention.
  • FIG. 2A is a schematic structural diagram of a second charging control circuit according to an embodiment of the present invention.
  • FIG. 2B is a schematic structural diagram of a third charging control circuit according to an embodiment of the present invention.
  • FIG. 3A is a schematic structural diagram of a fourth charging control circuit according to an embodiment of the present invention.
  • 3B is a schematic structural diagram of a fifth charging control circuit according to an embodiment of the present invention.
  • FIG. 4A is a schematic structural diagram of a sixth charging control circuit according to an embodiment of the present invention.
  • 4B is a schematic structural diagram of a seventh charging control circuit according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a battery device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of an electronic cigarette according to an embodiment of the present invention.
  • 1 battery pack; 11: battery; 2: control unit; 2a: switch control terminal of control unit; 2b: voltage detection terminal of control unit; 3: resistance; 4: switch unit; 4a: control terminal of switch unit; : first end of the switching unit; 4c: second end of the switching unit; Q1: triode; b: base of the triode; e: emitter of the triode; c: collector of the triode; Q2: MOS tube; g: MOS The gate of the tube; s: the source of the MOS tube; d: the drain of the MOS tube; Q3: relay; t: one end of the coil in the relay; u: the other end of the coil in the relay; v: the normally open contact in the relay Point; w: normally closed contact in the relay.
  • FIG. 1 is a schematic structural diagram of a charging control circuit according to an embodiment of the present invention.
  • the charging control circuit includes: a battery pack 1, a control unit 2, at least N resistors 3, and N switching units 4.
  • the battery pack 1 includes N batteries 11 connected in series, and N is an integer greater than or equal to 2;
  • the i-th switch control terminal 2a i of the control unit 2 is connected to the control terminal 4a i of the i-th switch unit 4 i of the N switch units 4, and the ith voltage detecting terminal 2b i and the N batteries 11 of the control unit 2
  • the positive electrode of the i-th battery 11 i is connected, the N+1th voltage detecting terminal 2b N+1 of the control unit 2 is connected to the negative electrode of the battery pack 1, and the N+1th voltage detecting terminal 2b N of the control unit 2 +1 ground;
  • I-th switching element connected in series between the positive electrode 4B. 11 i i i-th cell and the first end. 4 i has at least one resistor, the switching units. 4 i i i and a second terminal of the i-4C battery. 11 i
  • the negative electrode is connected, and i is an integer greater than or equal to 1 and less than or equal to N.
  • the switch unit 4 has three ends, which are a control end, a first end and a second end, respectively.
  • the control unit 2 is configured to detect the voltages of the N batteries 11 and control the turning on or off of at least one of the N switching units 4 based on the voltages of the N batteries 11. Specifically, the control unit 2 may pass the The i voltage detecting terminal 2b i and the i+1th voltage detecting terminal 2b i+1 determine the voltage of the i th battery 11 i , and control the i th switch device 4 i through the i th switch control terminal 2 i i The conduction between one end 4b i and the second end 4c i is turned on or off.
  • control unit 2 may be an MCU (Microcontroller Unit), etc.
  • MCU Microcontroller Unit
  • Each of the N switch units 4 may be a UMC3N chip or the like, which is not limited by the embodiment of the present invention.
  • the control unit 2 can detect the voltages of the N batteries 11 in real time, and control the turning on or off of at least one of the N switching units 4 based on the voltages of the N batteries 11.
  • control unit 2 to control the on or off of at least one of the N switch units 4 based on the voltages of the N batteries 11 can be implemented in the following two manners.
  • the first mode when the control unit 2 detects that the voltage of the i-th battery 11 i is greater than or equal to the preset voltage, the i-th switching unit 4 i is controlled to be turned on.
  • the preset voltage may be set in advance, and the preset voltage may be the maximum charging voltage of the battery, which is not limited by the embodiment of the present invention.
  • the control unit 2 can control the i-th switching unit 4 i to be turned on. After the i-th switching unit 4 i is turned on, at least one resistor connected in series between the i-th battery 11 i and the i-th switching unit 4 i is connected in parallel with the i-th battery 11 i , and a part of the current of the external power source flows through i.
  • 11 i-th cell at least one other portion flowing through the resistor, thereby to reduce the i-th battery charging current i. 11, thereby reducing the voltage of the battery. 11 i a i.
  • the i-th battery 11 i is also discharged through the at least one resistor, thereby further reducing the voltage of the i-th battery 11 i .
  • the i-th battery discharge current. 11 i may be the i-th battery voltage. 11 i is divided by the total resistance of the at least one resistance value is obtained, the at least one resistor per resistor of The setting may be performed in advance, for example, the resistance of each of the at least one resistor may be 82 ohms or the like.
  • control unit 2 controls the i-th switching unit 4 i to be turned on
  • the control unit 2 detects that the voltage of the i-th battery 11 i is less than the preset voltage
  • the i-th switching unit 4 i is controlled to be turned off.
  • the control unit 2 can control the i-th switching unit 4 i to be turned off. I-th switching units i. 4 turns off, the charging current is the same as the i-th battery charging current i. 11 and other battery, and i i-th battery. 11 would no longer be discharged through the at least one resistor, that is, The i-th battery 11 i returns to the normal state of charge.
  • the second way the control unit 2 detects the minimum voltage among the voltages of the N batteries 11 in real time; when the control unit 2 detects the voltage difference between the voltage of the i-th battery 11 i and the minimum voltage of the voltages of the N batteries 11 When the preset voltage difference is greater than or equal to, the i-th switching unit 4 i is controlled to be turned on.
  • the preset voltage difference may be set in advance, for example, the preset voltage difference may be 0.5 volts, 0.6 volts, etc., which is not limited by the embodiment of the present invention.
  • the control unit 2 can control the i-th switching unit 4 i to be turned on.
  • the i-th switching unit 4 i After the i-th switching unit 4 i is turned on, at least one resistor connected in series between the i-th battery 11 i and the i-th switching unit 4 i is connected in parallel with the i-th battery 11 i , and a part of the current of the external power source flows through i. 11 i-th cell, at least one other portion flowing through the resistor, thereby to reduce the i-th battery charging current i. 11, thereby reducing the voltage of the battery. 11 i a i.
  • the i-th battery 11 i is also discharged through the at least one resistor, thereby further reducing the voltage of the i-th battery 11 i .
  • the control unit 2 controls the i-th switching unit 4 i to be turned on, when the control unit 2 detects that the voltage difference between the voltage of the i-th battery 11 i and the minimum voltage of the voltages of the N batteries 11 is less than the pre- When the voltage difference is set, the i-th switching unit 4 i is controlled to be turned off.
  • the control i if the voltage difference between the voltage of the i-th battery 11 i and the voltage of the N batteries 11 is less than the preset voltage difference, but the voltage of the i-th battery 11 i is equal to the preset voltage, the control i
  • the switch unit 4 i is turned on to prevent the i-th battery 11 i from being fully charged, but when the remaining voltage of the remaining battery is not full, the switch unit is also turned on to charge the i-th battery 11 i , causing damage.
  • the control unit 2 can control the i-th switching unit 4 i to be turned off. I-th switching units i. 4 turns off, the charging current is the same as the i-th battery charging current i. 11 and other battery, and i i-th battery. 11 would no longer be discharged through the at least one resistor, that is, The i-th battery 11 i returns to the normal state of charge.
  • the charging control circuit passes through the control unit 2, at least N resistors 3 and N
  • the switching unit 4 can effectively achieve balanced charging of the battery pack 1, thereby greatly extending the service life of the battery pack 1, and shortening the charging time of the battery pack 1 and improving the use efficiency of the battery pack 1.
  • the charging control circuit has a relatively simple structure, and the occupied circuit board control is small and the cost is low.
  • each of the N switch units 4 may be the same or different, and for each of the N switch units 4, the switch unit may include at least one of a triode, a MOS tube, and a relay. In practical applications, the switch unit may also include other devices, as long as the switch unit can be turned on or off under the control of the control unit 2, which is not limited by the embodiment of the present invention.
  • the i-th switching unit 4 i is taken as an example to describe several possible configurations of each of the N switching units 4.
  • the i-th switching unit 4 i includes the transistor Q1
  • the base b of the transistor Q1 is connected to the i-th switching control terminal 2a i of the control unit 2
  • the third transistor Q1 At least one resistor is connected in series between the one pole and the anode of the i-th battery 11 i
  • the second pole of the transistor Q1 is connected to the cathode of the i-th battery 11 i .
  • the transistor Q1 is a PNP type transistor
  • the control unit 2 applies a low voltage to the base b of the transistor Q1
  • the emitter e of the transistor Q1 and the collector c are turned on.
  • the second structure Referring to FIG. 3A or FIG. 3B, when the i-th switching unit 4 i includes the MOS transistor Q2, the gate g of the MOS transistor Q2 is connected to the i-th switching control terminal 2a i of the control unit 2, and the MOS transistor at least one resistor connected in series between the positive electrode and the first electrode of Q2. 11 i of the i-th cell, the second of the MOS transistor Q2 and the i-th cell is connected to the negative. 11 i.
  • the MOS transistor Q2 is a P-type MOS transistor
  • the control unit 2 applies a low voltage to the gate g of the MOS transistor Q2
  • the source s and the drain d of the MOS transistor Q2 are turned on.
  • the MOS transistor Q2 is an N-type MOS transistor
  • the control unit 2 applies a high voltage to the gate g of the MOS transistor Q2
  • the drain d and the source s of the MOS transistor Q2 are turned on.
  • the i-th switching unit 4 i includes the MOS transistor Q2 and the MOS transistor Q2 is a P-type MOS transistor
  • the i-th switching unit 4 i may be a UMC3N chip.
  • the ith The switch unit 4 i can also be other chips, which is not limited by the embodiment of the present invention.
  • the third structure Referring to FIG. 4A or FIG. 4B, when the i-th switching unit 4 i includes the relay Q3, one end t of the coil in the relay Q3 is connected with the i-th switching control end 2a i of the control unit 2, in the relay Q3 The other end u of the coil is grounded, at least one resistor is connected in series between the first contact in the relay Q3 and the anode of the i-th battery 11 i , and the second contact in the relay Q3 is connected to the negative pole of the i-th battery 11 i .
  • the first contact in the relay Q3 is the normally open contact v
  • the second contact in the relay Q3 is the normally closed contact w.
  • the control unit 2 inputs a current to the coil of the relay Q3, and the coil of the relay Q3 is charged, and the normally open contact v of the relay Q3 can be sucked, thereby realizing the normally open contact v and the normally closed contact in the relay Q3. Conduction between w.
  • the first contact in the relay Q3 is the normally closed contact w
  • the second contact in the relay Q3 is the normally open contact v.
  • the control unit 2 inputs a current to the coil of the relay Q3, and the coil of the relay Q3 is charged, and the normally open contact v of the relay Q3 can be sucked, thereby realizing the normally closed contact w and the normally open contact in the relay Q3.
  • the structure of the i-th switching unit 4 i is described by taking only the above three structures as an example. In practical applications, the above three structures may be combined in any form.
  • the i switch unit 4 i is not limited in this embodiment of the present invention.
  • the charge control circuit includes a battery pack, a control unit, at least N resistors, and N switch units, and the battery pack includes N batteries in series.
  • the control unit may detect the voltages of the N batteries, and control the turning on or off of at least one of the N switching units based on the voltages of the N batteries, thereby enabling at least N of the N batteries
  • the charging current of one battery is controlled to realize the control of the voltage of the at least one battery to avoid overcharging of the at least one battery.
  • the charging control circuit can effectively achieve balanced charging of the battery pack through the control unit, at least N resistors, and N switching units, thereby greatly extending the service life of the battery pack and shortening the charging time of the battery pack. Improve the efficiency of battery pack use.
  • FIG. 5 is a schematic structural view of a battery device according to an embodiment of the present invention.
  • the battery device includes the charge control circuit shown in any of the above Figures 1 - 4B.
  • the battery device may include not only the charging in the above embodiment.
  • the electrical control circuit may also include other devices and the like, which is not limited by the embodiment of the present invention.
  • the battery device includes a charging control circuit including a battery pack, a control unit, at least N resistors, and N switching units, and the battery pack includes N batteries in series.
  • the control unit may detect the voltages of the N batteries, and control the turning on or off of at least one of the N switching units based on the voltages of the N batteries, thereby enabling at least N of the N batteries
  • the charging current of one battery is controlled to realize the control of the voltage of the at least one battery to avoid overcharging of the at least one battery.
  • the charging control circuit can effectively achieve balanced charging of the battery pack through the control unit, the plurality of resistors, and the N switching units, thereby greatly extending the service life of the battery pack and shortening the charging time of the battery pack. Improve the efficiency of battery pack use.
  • FIG. 6 is a schematic structural view of an electronic cigarette according to an embodiment of the present invention.
  • the electronic cigarette includes an atomizer and the battery device shown in Fig. 5 described above.
  • the electronic cigarette may include not only the atomizer but also the battery device in the above embodiment, and may also include other devices, such as a display screen, a switch, etc., which are not limited by the embodiment of the present invention.
  • the electronic cigarette includes an atomizer and a battery device
  • the charging control circuit in the battery device includes a battery pack, a control unit, at least N resistors, and N switch units
  • the battery pack includes N in series Battery.
  • the control unit may detect the voltages of the N batteries, and control the turning on or off of at least one of the N switching units based on the voltages of the N batteries, thereby enabling at least N of the N batteries
  • the charging current of one battery is controlled to realize the control of the voltage of the at least one battery to avoid overcharging of the at least one battery.
  • the charging control circuit can effectively achieve balanced charging of the battery pack through the control unit, the plurality of resistors, and the N switching units, thereby greatly extending the service life of the battery pack and shortening the charging time of the battery pack. Improve the efficiency of battery pack use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

一种充电控制电路、电池装置和电子烟，属于电子技术领域。所述充电控制电路包括：电池组(1)、控制单元(2)、至少N个电阻(3)和N个开关单元(4)，电池组(1)包括串联的N个电池(11)；控制单元(2)的第i个开关控制端(2a i)与N个开关单元(4)中第i个开关单元(4i)的控制端(4ai)连接，控制单元(2)的第i个电压检测端(2b i)与N个电池(11)中第i个电池(11i)的正极连接，控制单元(2)的第N+1个电压检测端(2bN+1)与电池组(1)的负极连接，且控制单元(2)的第N+1个电压检测端(2bN+1)接地；第i个开关单元(4i)的第一端(4bi)与第i个电池(11i)的正极之间串联有至少一个电阻(3)，第i个开关单元(4 i)的第二端(4ci)与第i个电池(11i)的负极连接，i为大于或等于1且小于或等于N的整数。通过控制单元(2)、至少N个电阻(3)和N个开关单元(4)实现了对电池组(1)的均衡充电，从而延长了电池组(1)的使用寿命。

Description

充电控制电路、电池装置和电子烟 技术领域
本实用新型涉及电子技术领域，尤其涉及一种充电控制电路、电池装置和电子烟。
背景技术
随着电子技术的发展，为了满足电子设备的供电需求，通常会对多个电池进行串联来得到电池组，电池组能够为电子设备提供较高的电压。对电池组进行充电时，由于流经该电池组中串联的多个电池的电流相同，而该多个电池的内阻往往有所差异，因此，在该电池组的充电过程中，该多个电池中内阻较大的电池上分到的电压较高，内阻较小的电池上分到的电压较低，从而导致该电池组中极有可能出现内阻较小的电池充电不足而内阻较大的电池过度充电的现象，长期的充电不足或过度充电将会降低该电池组的使用寿命。因此，亟需一种可以防止电池组中的电池充电不足或过度充电的充电控制电路。
实用新型内容
为了防止电池组中的电池充电不足或过度充电，本实用新型提供了一种充电控制电路、电池装置和电子烟。所述技术方案如下：
第一方面，提供了一种充电控制电路，所述充电控制电路包括：电池组、控制单元、至少N个电阻和N个开关单元，所述电池组包括串联的N个电池，所述N为大于或等于2的整数；
所述控制单元的第i个开关控制端与所述N个开关单元中第i个开关单元的控制端连接，所述控制单元的第i个电压检测端与所述N个电池中第i个电池的正极连接，所述控制单元的第N+1个电压检测端与所述电池组的负极连接，且所述控制单元的第N+1个电压检测端接地；
所述第i个开关单元的第一端与所述第i个电池的正极之间串联有至少一个电阻，所述第i个开关单元的第二端与所述第i个电池的负极连接，所述i为大 于或等于1且小于或等于N的整数；
其中，所述控制单元用于检测所述N个电池的电压，并基于所述N个电池的电压控制所述N个开关单元中至少一个开关单元的导通或关断。
可选地，所述N个开关单元中的每个开关单元为UMC3N芯片。
可选地，所述第i个开关单元包括三极管、MOS(金属Metal-Oxide-Semiconductor，金属氧化物半导体)管和继电器中的至少一个。
可选地，当所述第i个开关单元包括三极管时，所述三极管的基极与所述控制单元的第i个开关控制端连接，所述三极管的第一极与所述第i个电池的正极之间串联有至少一个电阻，所述三极管的第二极与所述第i个电池的负极连接。
可选地，当所述第i个开关单元包括MOS管时，所述MOS管的栅极与所述控制单元的第i个开关控制端连接，所述MOS管的第一极与所述第i个电池的正极之间串联有至少一个电阻，所述MOS管的第二极与所述第i个电池的负极连接。
可选地，当所述第i个开关单元包括继电器时，所述继电器中线圈的一端与所述控制单元的第i个开关控制端连接，所述继电器中线圈的另一端接地，所述继电器中的第一触点与所述第i个电池的正极之间串联有至少一个电阻，所述继电器中的第二触点与所述第i个电池的负极连接。
可选地，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
其中，当所述控制单元检测到所述第i个电池的电压大于或等于预设电压时，控制所述第i个开关单元导通。
可选地，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
其中，所述控制单元控制所述第i个开关单元导通之后，当所述控制单元检测到所述第i个电池的电压小于预设电压时，控制所述第i个开关单元关断。
可选地，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
其中，当所述控制单元检测到所述第i个电池的电压与所述N个电池的电压中的最小电压之间的电压差大于或等于预设电压差时，控制所述第i个开关单元导通。
可选地，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
其中，所述控制单元控制所述第i个开关单元导通之后，当所述控制单元检测到所述第i个电池的电压与所述N个电池的电压中的最小电压之间的电压差小于所述预设电压差时，控制所述第i个开关单元关断。
第二方面，提供了一种电池装置，所述电池装置包括上述第一方面所述的充电控制电路。
第三方面，提供了一种电子烟，所述电子烟包括雾化器和上述第二方面提供的电池装置。
本实用新型提供的技术方案的有益效果是：充电控制电路包括电池组、控制单元、至少N个电阻和N个开关单元，电池组包括串联的N个电池。在电池组的充电过程中，控制单元可以检测N个电池的电压，并基于N个电池的电压控制N个开关单元中至少一个开关单元的导通或关断，从而得以对N个电池中至少一个电池的充电电流进行控制，进而实现对该至少一个电池的电压的控制，避免该至少一个电池出现过度充电现象。也即是，该充电控制电路通过控制单元、多个电阻和N个开关单元就可以有效实现对电池组的均衡充电，从而可以大大延长电池组的使用寿命，且可以缩短电池组的充电时间，提高电池组的使用效率。
附图说明
图1是本实用新型实施例提供的第一种充电控制电路的结构示意图；
图2A是本实用新型实施例提供的第二种充电控制电路的结构示意图；
图2B是本实用新型实施例提供的第三种充电控制电路的结构示意图；
图3A是本实用新型实施例提供的第四种充电控制电路的结构示意图；
图3B是本实用新型实施例提供的第五种充电控制电路的结构示意图；
图4A是本实用新型实施例提供的第六种充电控制电路的结构示意图；
图4B是本实用新型实施例提供的第七种充电控制电路的结构示意图；
图5是本实用新型实施例提供的一种电池装置的结构示意图；
图6是本实用新型实施例提供的一种电子烟的结构示意图。
附图标记：
1：电池组；11：电池；2：控制单元；2a：控制单元的开关控制端；2b：控制单元的电压检测端；3：电阻；4：开关单元；4a：开关单元的控制端；4b：开关单元的第一端；4c：开关单元的第二端；Q1：三极管；b：三极管的基极；e：三极管的发射极；c：三极管的集电极；Q2：MOS管；g：MOS管的栅极；s：MOS管的源极；d：MOS管的漏极；Q3：继电器；t：继电器中线圈的一端；u：继电器中线圈的另一端；v：继电器中的常开触点；w：继电器中的常闭触点。
具体实施方式
为使本实用新型的目的、技术方案和优点更加清楚，下面将结合附图对本实用新型实施方式作进一步地详细描述。
图1是本实用新型实施例提供的一种充电控制电路的结构示意图。参见图1，该充电控制电路包括：电池组1、控制单元2、至少N个电阻3和N个开关单元4，电池组1包括串联的N个电池11，N为大于或等于2的整数；
控制单元2的第i个开关控制端2ai与N个开关单元4中第i个开关单元4i的控制端4ai连接，控制单元2的第i个电压检测端2bi与N个电池11中第i个电池11i的正极连接，控制单元2的第N+1个电压检测端2bN+1与电池组1的负极连接，且控制单元2的第N+1个电压检测端2bN+1接地；
第i个开关单元4i的第一端4bi与第i个电池11i的正极之间串联有至少一个电阻，第i个开关单元4i的第二端4ci与第i个电池11i的负极连接，i为大于或等于1且小于或等于N的整数。在本实用新型中，开关单元4具有三端，分别为控制端、第一端和第二端。
其中，控制单元2用于检测N个电池11的电压，并基于N个电池11的电压控制N个开关单元4中至少一个开关单元的导通或关断，具体地，控制单元2可以通过第i个电压检测端2bi和第i+1个电压检测端2bi+1确定第i个电池11i的电压，并通过第i个开关控制端2ai控制第i个开关单元4i的第一端4bi与第二端4ci之间的导通或关断。
另外，控制单元2可以为MCU(Microcontroller Unit，微控制单元)等，本 实用新型实施例对此不作限定。N个开关单元4中的每个开关单元可以为UMC3N芯片等，本实用新型实施例对此不作限定。
其中，对电池组1进行充电时，电池组1的正极与外部电源的正极连接，电池组1的负极与外部电源的负极连接。在电池组1的充电过程中，控制单元2可以实时检测N个电池11的电压，并基于N个电池11的电压控制N个开关单元4中至少一个开关单元的导通或关断。
其中，控制单元2基于N个电池11的电压控制N个开关单元4中至少一个开关单元的导通或关断的操作可以通过如下两种方式实现。
第一种方式：当控制单元2检测到第i个电池11i的电压大于或等于预设电压时，控制第i个开关单元4i导通。
需要说明的是，预设电压可以预先进行设置，且预设电压可以为电池的最大充电电压，本实用新型实施例对此不作限定。
当第i个电池11i的电压大于或等于预设电压时，表明第i个电池11i已经充满电，则为了保证N个电池11的均衡充电，防止第i个电池11i出现过度充电的现象，控制单元2可以控制第i个开关单元4i导通。第i个开关单元4i导通后，第i个电池11i与第i个开关单元4i之间串联的至少一个电阻与第i个电池11i并联，此时外部电源的电流一部分流经第i个电池11i，另一部分流经该至少一个电阻，从而得以降低第i个电池11i的充电电流，进而降低第i个电池11i的电压。另外，在此情况下，第i个电池11i还会通过该至少一个电阻放电，从而进一步地降低第i个电池11i的电压。通过降低第i个电池11i的电压，将能有效防止第i个电池11i出现过度充电的现象。
需要说明的是，第i个电池11i的放电电流可以为第i个电池11i的电压除以该至少一个电阻的总阻值后得到的值，该至少一个电阻中每个电阻的阻值可以预先进行设置，如该至少一个电阻中每个电阻的阻值可以为82欧姆等。
进一步地，控制单元2控制第i个开关单元4i导通之后，当控制单元2检测到第i个电池11i的电压小于预设电压时，控制第i个开关单元4i关断。
当控制单元2检测到第i个电池11i的电压小于预设电压时，表明第i个电池11i尚未充满电，则为了防止第i个电池11i的电压继续降低至过小，控制单元2可以控制第i个开关单元4i关断。第i个开关单元4i关断后，第i个电池11i的充电电流与其它电池的充电电流相同，且第i个电池11i也不会再通过该至少 一个电阻放电，也即是，第i个电池11i恢复正常充电状态。
第二种方式：控制单元2实时检测N个电池11的电压中的最小电压；当控制单元2检测到第i个电池11i电压与N个电池11的电压中的最小电压之间的电压差大于或等于预设电压差时，控制第i个开关单元4i导通。
需要说明的是，预设电压差可以预先进行设置，如预设电压差可以为0.5伏、0.6伏等，本实用新型实施例对此不作限定。
当第i个电池11i的电压与N个电池11的电压中的最小电压之间的电压差大于或等于预设电压差时，表明第i个电池11i的电压与其它电池的电压相差较大，则为了保证N个电池11的均衡充电，防止第i个电池11i出现过度充电的现象，控制单元2可以控制第i个开关单元4i导通。第i个开关单元4i导通后，第i个电池11i与第i个开关单元4i之间串联的至少一个电阻与第i个电池11i并联，此时外部电源的电流一部分流经第i个电池11i，另一部分流经该至少一个电阻，从而得以降低第i个电池11i的充电电流，进而降低第i个电池11i的电压。另外，在此情况下，第i个电池11i还会通过该至少一个电阻放电，从而进一步地降低第i个电池11i的电压。通过降低第i个电池11i的电压，将能有效防止第i个电池11i出现过度充电的现象。
进一步地，控制单元2控制第i个开关单元4i导通之后，当控制单元2检测到第i个电池11i的电压与N个电池11的电压中的最小电压之间的电压差小于预设电压差时，控制第i个开关单元4i关断。需要说明的是，若第i个电池11i的电压与N个电池11的电压中的最小电压差小于预设电压差，但是第i个电池11i的电压等于预设电压时，控制第i个开关单元4i打开，防止第i个电池11i充满电，但剩余电池中电压最小的未充满时，同样打开开关单元对第i个电池11i充电，造成损坏。
当控制单元2检测到第i个电池11i的电压与N个电池11的电压中的最小电压之间的电压差小于预设电压差时，表明第i个电池11i的电压与其它电池的电压已经相差较小，则为了防止第i个电池11i的电压继续降低至过小，控制单元2可以控制第i个开关单元4i关断。第i个开关单元4i关断后，第i个电池11i的充电电流与其它电池的充电电流相同，且第i个电池11i也不会再通过该至少一个电阻放电，也即是，第i个电池11i恢复正常充电状态。
需要说明的是，该充电控制电路通过控制单元2、至少N个电阻3和N个 开关单元4即可有效实现对电池组1的均衡充电，从而可以大大延长电池组1的使用寿命，且可以缩短电池组1的充电时间，提高电池组1的使用效率。另外，该充电控制电路结构较为简单，占用的电路板控件较小，成本较低。
其中，N个开关单元4中的各个开关单元的结构可以相同也可以不同，且对于N个开关单元4中的各个开关单元，该开关单元可以包括三极管、MOS管和继电器中的至少一个，当然，实际应用中，该开关单元也可以包括其它器件，只要该开关单元能够在控制单元2的控制下进行导通或关断即可，本实用新型实施例对此不作限定。
下面以第i个开关单元4i为例，对N个开关单元4中各个开关单元的几种可能的结构进行说明。
第一种结构：参见图2A或图2B，当第i个开关单元4i包括三极管Q1时，三极管Q1的基极b与控制单元2的第i个开关控制端2ai连接，三极管Q1的第一极与第i个电池11i的正极之间串联有至少一个电阻，三极管Q1的第二极与第i个电池11i的负极连接。
其中，参见图2A，当三极管Q1为PNP型三极管时，三极管Q1的第一极为发射极e，三极管Q1的第二极为集电极c。此时，当控制单元2向三极管Q1的基极b施加一个低电压时，三极管Q1的发射极e与集电极c之间即会导通。
其中，参见图2B，当三极管Q1为NPN型三极管时，三极管Q1的第一极为集电极c，三极管Q1的第二极为发射极e。此时，当控制单元2向三极管Q1的基极b施加一个高电压时，三极管Q1的集电极c与发射极e之间即会导通。
第二种结构：参见图3A或图3B，当第i个开关单元4i包括MOS管Q2时，MOS管Q2的栅极g与控制单元2的第i个开关控制端2ai连接,MOS管Q2的第一极与第i个电池11i的正极之间串联有至少一个电阻，MOS管Q2的第二极与第i个电池11i的负极连接。
其中，参见图3A，当MOS管Q2为P型MOS管时，MOS管Q2的第一极为源极s，MOS管Q2的第二极为漏极d。此时，当控制单元2向MOS管Q2的栅极g施加一个低电压时，MOS管Q2的源极s与漏极d之间即会导通。
其中，参见图3B，当MOS管Q2为N型MOS管时，MOS管Q2的第一极为漏极d，MOS管Q2的第二极为源极s。此时，当控制单元2向MOS管Q2的栅极g施加一个高电压时，MOS管Q2的漏极d与源极s之间即会导通。
需要说明的是，当第i个开关单元4i包括MOS管Q2，且MOS管Q2为P型MOS管时，第i个开关单元4i可以为UMC3N芯片，当然，实际应用中，第i个开关单元4i也可以为其它芯片，本实用新型实施例对此不作限定。
第三种结构：参见图4A或图4B，当第i个开关单元4i包括继电器Q3时，继电器Q3中线圈的一端t与控制单元2的第i个开关控制端2ai连接，继电器Q3中线圈的另一端u接地，继电器Q3中的第一触点与第i个电池11i的正极之间串联有至少一个电阻，继电器Q3中的第二触点与第i个电池11i的负极连接。
其中，参见图4A，继电器Q3中的第一触点为常开触点v，继电器Q3中的第二触点为常闭触点w。此时，控制单元2向继电器Q3中线圈输入电流，继电器Q3中线圈带电，可以将继电器Q3中的常开触点v吸合，从而实现继电器Q3中的常开触点v与常闭触点w之间的导通。
其中，参见图4B，继电器Q3中的第一触点为常闭触点w，继电器Q3中的第二触点为常开触点v。此时，控制单元2向继电器Q3中线圈输入电流，继电器Q3中线圈带电，可以将继电器Q3中的常开触点v吸合，从而实现继电器Q3中的常闭触点w与常开触点v之间的导通。
需要说明的是，本实用新型实施例中仅以上述三种结构为例对第i个开关单元4i的结构进行说明，实际应用中，也可以将上述三种结构以任意形式进行结合得到第i个开关单元4i，本实用新型实施例对此不作限定。
在本实用新型实施例中，充电控制电路包括电池组、控制单元、至少N个电阻和N个开关单元，电池组包括串联的N个电池。在电池组的充电过程中，控制单元可以检测N个电池的电压，并基于N个电池的电压控制N个开关单元中至少一个开关单元的导通或关断，从而得以对N个电池中至少一个电池的充电电流进行控制，进而实现对该至少一个电池的电压的控制，避免该至少一个电池出现过度充电现象。也即是，该充电控制电路通过控制单元、至少N个电阻和N个开关单元就可以有效实现对电池组的均衡充电，从而可以大大延长电池组的使用寿命，且可以缩短电池组的充电时间，提高电池组的使用效率。
图5是本实用新型实施例提供的一种电池装置的结构示意图。参见图5，该电池装置包括上述图1-图4B任一所示的充电控制电路。
需要说明的是，实际应用中，该电池装置不仅可以包括上述实施例中的充 电控制电路，还可以包括其他器件等，本实用新型实施例对此不作限定。
在本实用新型实施例中，电池装置包括充电控制电路，充电控制电路包括电池组、控制单元、至少N个电阻和N个开关单元，电池组包括串联的N个电池。在电池组的充电过程中，控制单元可以检测N个电池的电压，并基于N个电池的电压控制N个开关单元中至少一个开关单元的导通或关断，从而得以对N个电池中至少一个电池的充电电流进行控制，进而实现对该至少一个电池的电压的控制，避免该至少一个电池出现过度充电现象。也即是，该充电控制电路通过控制单元、多个电阻和N个开关单元就可以有效实现对电池组的均衡充电，从而可以大大延长电池组的使用寿命，且可以缩短电池组的充电时间，提高电池组的使用效率。
图6是本实用新型实施例提供的一种电子烟的结构示意图。参见图6，该电子烟包括雾化器和上述图5所示的电池装置。
需要说明的是，实际应用中，该电子烟不仅可以包括雾化器和上述实施例中的电池装置，还可以包括其他器件，如显示屏、开关等，本实用新型实施例对此不作限定。
在本实用新型实施例中，电子烟中包括雾化器和电池装置，该电池装置中的充电控制电路包括电池组、控制单元、至少N个电阻和N个开关单元，电池组包括串联的N个电池。在电池组的充电过程中，控制单元可以检测N个电池的电压，并基于N个电池的电压控制N个开关单元中至少一个开关单元的导通或关断，从而得以对N个电池中至少一个电池的充电电流进行控制，进而实现对该至少一个电池的电压的控制，避免该至少一个电池出现过度充电现象。也即是，该充电控制电路通过控制单元、多个电阻和N个开关单元就可以有效实现对电池组的均衡充电，从而可以大大延长电池组的使用寿命，且可以缩短电池组的充电时间，提高电池组的使用效率。
以上所述仅为本实用新型的较佳实施例，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (12)

  1. 一种充电控制电路，其特征在于，所述充电控制电路包括：电池组、控制单元、至少N个电阻和N个开关单元，所述电池组包括串联的N个电池，所述N为大于或等于2的整数；
    所述控制单元的第i个开关控制端与所述N个开关单元中第i个开关单元的控制端连接，所述控制单元的第i个电压检测端与所述N个电池中第i个电池的正极连接，所述控制单元的第N+1个电压检测端与所述电池组的负极连接，且所述控制单元的第N+1个电压检测端接地；
    所述第i个开关单元的第一端与所述第i个电池的正极之间串联有至少一个电阻，所述第i个开关单元的第二端与所述第i个电池的负极连接，所述i为大于或等于1且小于或等于N的整数；
    其中，所述控制单元用于检测所述N个电池的电压，并基于所述N个电池的电压控制所述N个开关单元中至少一个开关单元的导通或关断。
  2. 如权利要求1所述的充电控制电路，其特征在于，所述N个开关单元中的每个开关单元为UMC3N芯片。
  3. 如权利要求1所述的充电控制电路，其特征在于，所述第i个开关单元包括三极管、金属氧化物半导体MOS管和继电器中的至少一个。
  4. 如权利要求3所述的充电控制电路，其特征在于，当所述第i个开关单元包括三极管时，所述三极管的基极与所述控制单元的第i个开关控制端连接，所述三极管的第一极与所述第i个电池的正极之间串联有至少一个电阻，所述三极管的第二极与所述第i个电池的负极连接。
  5. 如权利要求3所述的充电控制电路，其特征在于，当所述第i个开关单元包括MOS管时，所述MOS管的栅极与所述控制单元的第i个开关控制端连接，所述MOS管的第一极与所述第i个电池的正极之间串联有至少一个电阻，所述MOS管的第二极与所述第i个电池的负极连接。
  6. 如权利要求3所述的充电控制电路，其特征在于，当所述第i个开关单元包括继电器时，所述继电器中线圈的一端与所述控制单元的第i个开关控制端连接，所述继电器中线圈的另一端接地，所述继电器中的第一触点与所述第i个电池的正极之间串联有至少一个电阻，所述继电器中的第二触点与所述第i个电池的负极连接。
  7. 如权利要求1所述的充电控制电路，其特征在于，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
    其中，当所述控制单元检测到所述第i个电池的电压大于或等于预设电压时，控制所述第i个开关单元导通。
  8. 如权利要求1或7所述的充电控制电路，其特征在于，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
    其中，所述控制单元控制所述第i个开关单元导通之后，当所述控制单元检测到所述第i个电池的电压小于预设电压时，控制所述第i个开关单元关断。
  9. 如权利要求1所述的充电控制电路，其特征在于，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
    其中，当所述控制单元检测到所述第i个电池的电压与所述N个电池的电压中的最小电压之间的电压差大于或等于预设电压差时，控制所述第i个开关单元导通。
  10. 如权利要求1或9所述的充电控制电路，其特征在于，所述电池组的正极与外部电源的正极连接，所述电池组的负极与所述外部电源的负极连接；
    其中，所述控制单元控制所述第i个开关单元导通之后，当所述控制单元检测到所述第i个电池的电压与所述N个电池的电压中的最小电压之间的电压差小于所述预设电压差时，控制所述第i个开关单元关断。
  11. 一种电池装置，其特征在于，所述电池装置包括权利要求1-10任一所 述的充电控制电路。
  12. 一种电子烟，其特征在于，所述电子烟包括雾化器和权利要求11所述的电池装置。
PCT/CN2017/115020 2017-08-17 2017-12-07 充电控制电路、电池装置和电子烟 Ceased WO2019033629A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721033610.7U CN207251248U (zh) 2017-08-17 2017-08-17 充电控制电路、电池装置和电子烟
CN201721033610.7 2017-08-17

Publications (1)

Publication Number Publication Date
WO2019033629A1 true WO2019033629A1 (zh) 2019-02-21

Family

ID=61880648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/115020 Ceased WO2019033629A1 (zh) 2017-08-17 2017-12-07 充电控制电路、电池装置和电子烟

Country Status (2)

Country Link
CN (1) CN207251248U (zh)
WO (1) WO2019033629A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882801A (zh) * 2009-04-30 2010-11-10 维熹科技股份有限公司 串联电池组充电电路
CN102118039A (zh) * 2009-12-30 2011-07-06 易维特科技股份有限公司 电池组的平衡充电系统、充电模块、充电装置及充电方法
US20120249071A1 (en) * 2011-04-01 2012-10-04 Samya Technology Co., Ltd. Series battery charger with the function of separate detection
CN103730936A (zh) * 2014-01-03 2014-04-16 桂林电子科技大学 电动汽车动力电池均衡管理系统和均衡管理方法
CN104836261A (zh) * 2014-02-07 2015-08-12 鸿富锦精密工业（深圳）有限公司 电池组充电控制方法及装置
CN105978106A (zh) * 2016-07-08 2016-09-28 卓尔悦欧洲控股有限公司 串联电池的均衡充电电路及其装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101882801A (zh) * 2009-04-30 2010-11-10 维熹科技股份有限公司 串联电池组充电电路
CN102118039A (zh) * 2009-12-30 2011-07-06 易维特科技股份有限公司 电池组的平衡充电系统、充电模块、充电装置及充电方法
US20120249071A1 (en) * 2011-04-01 2012-10-04 Samya Technology Co., Ltd. Series battery charger with the function of separate detection
CN103730936A (zh) * 2014-01-03 2014-04-16 桂林电子科技大学 电动汽车动力电池均衡管理系统和均衡管理方法
CN104836261A (zh) * 2014-02-07 2015-08-12 鸿富锦精密工业（深圳）有限公司 电池组充电控制方法及装置
CN105978106A (zh) * 2016-07-08 2016-09-28 卓尔悦欧洲控股有限公司 串联电池的均衡充电电路及其装置

Also Published As

Publication number Publication date
CN207251248U (zh) 2018-04-17

Similar Documents

Publication Publication Date Title
CN212543359U (zh) 单晶圆电池保护电路、电池充放电电路及便携式电子设备
CN101552482B (zh) 充放电控制电路及电池装置
US7863863B2 (en) Multi-cell battery pack charge balance circuit
CN104617626B (zh) 用于电容降压的充电保护电路
US11889863B2 (en) Voltage output circuit and electronic cigarette
JP4965496B2 (ja) 充放電制御回路及びバッテリ装置
CN101123356B (zh) 充电和放电控制电路以及充电型电源装置
CN202663092U (zh) 一种电池过充电保护电路
CN103490389A (zh) 电池保护电路及系统
CN203205845U (zh) 具有放电过流保护后自恢复功能的电池保护电路
CN112311038A (zh) 一种充放电保护电路、终端设备及电池放电控制方法
CN205986243U (zh) 电池充电保护锁存电路及双重保护电路
CN103117536B (zh) 一种蓄电池保护电路
TWI530051B (zh) 過壓保護電路及可攜帶型電子裝置
CN101882801A (zh) 串联电池组充电电路
TW201015814A (en) Charging system for rechargeable lithium battery
CN111740388A (zh) 电源保护电路、电子烟、电源保护方法及装置
CN107887956B (zh) 一种避免电池过放的保护电路及电池供电设备
CN106208225A (zh) 充电电池的充电激活电路
CN208142879U (zh) 一种充电控制电路及充电装置
CN207719838U (zh) 电池充放电保护电路
CN207098704U (zh) 用于调节两节串联电池电压均衡的电路及电池组保护系统
WO2019033629A1 (zh) 充电控制电路、电池装置和电子烟
CN106385066A (zh) 电池的充放电电路及终端
CN205070581U (zh) 光伏充电电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17921542

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17921542

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 02/10/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17921542

Country of ref document: EP

Kind code of ref document: A1