CN204559141U - Charge power supply of battery system - Google Patents
Charge power supply of battery system Download PDFInfo
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- CN204559141U CN204559141U CN201420844053.7U CN201420844053U CN204559141U CN 204559141 U CN204559141 U CN 204559141U CN 201420844053 U CN201420844053 U CN 201420844053U CN 204559141 U CN204559141 U CN 204559141U
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Abstract
The utility model discloses a kind of charge power supply of battery system, comprise DC power supply, battery module and charge management module, charge management module comprises input protection unit, delay startup switch element, DC/DC converter unit and battery detecting unit in place, input protection unit is connected between DC power supply and delay startup switch element, first control end of battery detecting unit in place and battery module and delay startup switch element is connected to send first and controls signal to delay startup switch element, delay startup switch element starts according to the first control signal or turns off DC/DC converter unit.Compared with prior art, because charge management module comprises input protection unit and battery detecting unit in place, input protection unit can be protected DC power supply, improves the safety and reliability of charging process; Battery detecting unit in place can detect the state in place of battery module and turn off DC/DC converter unit when battery module is not in place, effectively avoids energy dissipation.
Description
Technical field
The utility model relates to technical field of battery management, relates to a kind of charge power supply of battery system more specifically.
Background technology
No matter be at present digital control or analogue enlargement to the charging of battery, it is all made up of independently two parts: one is DC power supply, charges the battery and provides DC energy source (battery charging can only use DC energy source); Another management that to be DC power supply charge to battery and protection part.The generation of DC power supply generally has AC/DC high frequency switch power, linear power supply, solar energy and other DC power supply etc., and wherein high frequency switch power charges the battery to provide the main method of DC power supply.
China Patent No. is 200720076436.4, denomination of invention is disclose a kind of Charge Management control circuit for battery charger in the patent application of " the Charge Management control circuit for battery charger ", it comprises a primary circuit, and has the secondary circuit of battery charging management function, an isolated transmission module and rechargeable battery, wherein, rechargeable battery is connected with the output of DC output circuit of the secondary circuit with battery charging management function; The secondary circuit with battery charging management function also comprises the switch power supply secondary feedback circuit merging battery charging management function, and the input of this switch power supply secondary feedback circuit connects another output of rechargeable battery and DC output circuit respectively; Input and the output of described isolated transmission module are connected the output of switch power supply secondary feedback circuit and the input of primary control module that merge battery charging management function respectively.
Technique scheme can realize alternating current and be transformed to direct current directly charging the battery, but due to major loop without switching device to cut off charge circuit and without any current limliting or output short circuit protective device, therefore system shortage fail safe; In addition, such scheme charging control process is complicated and can not judge that whether rechargeable battery in place, therefore exist rechargeable battery not in place time energy dissipation problem.
Utility model content
The purpose of this utility model is to provide a kind of charge power supply of battery system, to improve reliability and the fail safe of charging process, and can automatically identify battery module whether in place to avoid battery module not in place time carry out charging and cause energy dissipation.
For achieving the above object, the utility model provides a kind of charge power supply of battery system, comprise DC power supply, battery module and charge management module, it is characterized in that, described charge management module comprises input protection unit, delay startup switch element, DC/DC converter unit and battery detecting unit in place, the input of described input protection unit is connected with the output of described DC power supply, the output of described input protection unit is connected with the input of described delay startup switch element, described battery detecting unit in place is connected to export low and high level to described delay startup switch element with the first control end of described battery module and described delay startup switch element, the output of described delay startup switch element is connected with the input of described DC/DC converter unit and starts with the low and high level exported according to described battery detecting unit in place or to turn off described DC/DC converter unit.
Compared with prior art, charge management module in the utility model charge power supply of battery system comprises input protection unit and battery detecting unit in place, input protection unit can carry out conservation treatment to the DC power supply of input, thus significantly improves the safety and reliability of charging process; Simultaneously, battery detecting unit in place can detect in real time to the state in place of battery module, and the unlatching of control DC/DC converter unit or shutoff according to testing result output low and high level in place, achieve and turn off DC/DC converter unit when battery module is not in place and stop the charging to battery module, effectively avoid energy dissipation.
Preferably, described charge management module also comprises embedded processing unit, described embedded processing unit is connected with the second control end of described battery module and described delay startup switch element, and described embedded processing unit gathers the performance parameter of described battery module and exports low and high level to described delay startup switch element.
Preferably, described charge management module also comprises output protection unit, and the input of described output protection unit is connected with the output of described DC/DC converter unit, and the output of described output protection unit is connected with described battery module.
Preferably, described battery detecting unit in place comprises photoelectrical coupler U1 and resistance R5, the pin 1 of described photoelectrical coupler U1 is connected with the anode of described battery module, the pin 2 of described photoelectrical coupler U1 is connected with described delay startup switch element, pin 3 ground connection of described photoelectrical coupler U1, the pin 4 of described photoelectrical coupler U1 is connected to export low and high level to described delay startup switch element with the first control end of described delay startup switch element.
Preferably, described delay startup switch element comprises field effect transistor Q1 and photoelectrical coupler U2, the source electrode of described field effect transistor Q1 is connected with the output of described input protection unit, the grid of described field effect transistor Q1 is connected with the pin 4 of described photoelectrical coupler U1, the drain electrode of described field effect transistor Q1 is connected with described DC/DC converter unit, the pin 1 of described photoelectrical coupler U2 is connected to receive the low and high level that described embedded processing unit exports with the output of described embedded processing unit, the pin 2 of described photoelectrical coupler U2 and pin 3 ground connection, the pin 4 of described photoelectrical coupler U2 is connected with the pin 2 of described photoelectrical coupler U1.
Preferably, described delay startup switch element also comprises resistance R1, R2, R3, R4 and electric capacity C1, one end of described resistance R1 is connected with the output of described input protection unit, the other end of described resistance R1 is connected with one end of described resistance R2 and the grid of described field effect transistor Q1, the other end of described resistance R2 is connected with the pin 4 of described photoelectrical coupler U1, between the pin 2 that described resistance R4 is connected to described photoelectrical coupler U2 and described embedded processing unit, one end of described electric capacity C1 is connected with the drain electrode of described field effect transistor Q1, the other end of described electric capacity C1 is connected with one end of described resistance R3, the other end of described resistance R3 is connected with the grid of described field effect transistor Q1.
Preferably, described DC/DC converter unit is constant current constant voltage DC/DC converter unit.
Preferably, described input protection unit comprises the first fuse and the first anti-reverse unit, and described first fuse and described first anti-reverse unit are connected with described DC power supply and described delay startup switch element respectively.
Preferably, described output protection unit comprises the second fuse, the second anti-reverse unit and reverse-filling unit, and described second fuse, the second anti-reverse unit are connected with described DC power supply and described delay startup switch element respectively with reverse-filling unit.
By following description also by reference to the accompanying drawings, the utility model will become more clear, and these accompanying drawings are for explaining embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model charge power supply of battery system one embodiment.
Fig. 2 is the structured flowchart of another embodiment of the utility model charge power supply of battery system.
Fig. 3 is that in Fig. 2, battery detecting unit in place eases up the circuit diagram of starting switch unit.
Fig. 4 is the circuit diagram of DC/DC converter unit in Fig. 2.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, element numbers similar in accompanying drawing represents similar element.
Please refer to Fig. 1; the utility model charge power supply of battery system 100 comprises DC power supply 11, battery module 12 and charge management module 13; charge management module 13 is connected between DC power supply 11 and battery module 12, and wherein charge management module 13 comprises input protection unit 131, delay startup switch element 132, DC/DC converter unit 133 and battery detecting unit 134 in place.Concrete, the input of input protection unit 131 is connected with the output of DC power supply 11, the output of input protection unit 131 is connected with the input of delay startup switch element 132, battery detecting unit 134 in place is connected with the first control end of battery module 12 and delay startup switch element 132, whether battery detecting unit in place 134 detects battery module 12 in place, and export low and high level (i.e. the first control signal) to delay startup switch element 132 according to testing result in place, the output of delay startup switch element 132 is connected with the input of DC/DC converter unit 133 and starts with the low and high level exported according to battery detecting unit 134 in place or turn off DC/DC converter unit 133.
Compared with prior art, charge management module 13 in the utility model charge power supply of battery system 100 comprises input protection unit 131 and battery detecting unit 134 in place, input protection unit 131 can when charging circuit generation overcurrent or short circuit etc. be abnormal, safety disconnects charging circuit thus protects direct power supply 11, thus significantly improves the safety and reliability of charging process; Simultaneously, battery detecting unit in place 134 can detect in real time to the state in place of battery module 12, and the unlatching of control DC/DC converter unit 133 or shutoff according to testing result output low and high level in place, achieve and turn off DC/DC converter unit 133 when battery module 12 is not in place and stop the charging to battery module 12, effectively can avoid energy dissipation.
Preferably, as shown in Figure 2, charge management module 13 also comprises output protection unit 135 and embedded processing unit 136, and wherein the input of output protection unit 135 is connected with the output of DC/DC converter unit 133, and the output of output protection unit 135 is connected with battery module 12, embedded processing unit 136 is connected with the second control end of battery module 12 and delay startup switch element 132, embedded processing unit 136 gathers the performance parameter of battery module 12 and exports low and high level (i.e. the second control signal CTRL) to delay startup switch element 132 and then manage charging process and control according to performance parameter, wherein the performance parameter of battery module 12 comprises the voltage of battery module 12, the information such as temperature, and the second control signal CTRL is specially height, low level, as the overtension or too low of battery module 12 detected when embedded processing unit 136, or time too high or too low for temperature, embedded processing unit 136 output low level is to delay startup switch element 132, turn off photoelectrical coupler U2 thus turn off field effect transistor Q1, cut off the input voltage of DC/DC converter unit 133, stop charging to battery module 12.
Concrete, input protection unit 131 comprises fuse (the first fuse), first fuse is connected with DC power supply 11 and delay startup switch element 131, for disconnecting charging circuit safely when charging circuit generation overcurrent or short circuit are abnormal, thus protection DC power supply 11; Preferably; input protection unit 131 also comprises anti-reverse unit (the first anti-reverse unit); first anti-reverse unit is connected with DC power supply 11 and delay startup switch element 131; circuit components is damaged during DC power supply 11 reverse polarity connection for avoiding; anti-reverse unit is circuit structure conventional in prior art, is not described in detail herein.Output protection unit 135 comprises fuse (the second fuse), second fuse is connected with battery module 12 and DC/DC converter unit 133, for disconnecting charging circuit safely when charging circuit generation overcurrent or short circuit are abnormal, thus protection battery module 12; Preferably; output protection unit 135 also comprises anti-reverse unit (the second anti-reverse unit) and reverse-filling unit; anti-reverse unit is connected with battery module 12 and DC/DC converter unit 133; circuit components is damaged during battery module 12 reverse polarity connection for avoiding; reverse-filling unit is connected with battery module 12 and DC/DC converter unit 133, accesses produce larger surge current instantaneously for avoiding battery module 12.
As shown in Figure 3, delay startup switch element 132 comprises field effect transistor Q1 and photoelectrical coupler U2, the source electrode of field effect transistor Q1 is connected with the output of input protection unit 131, the grid of field effect transistor Q1 is the first control end of delay startup switch element 132, this first control end is connected the low and high level (the first control signal) sent to receive battery detecting unit 134 in place with the output of battery detecting unit in place 134, the drain electrode of field effect transistor Q1 is connected with DC/DC converter unit 133, the pin 1 of photoelectrical coupler U2 is the second control end of delay startup switch element 132, this second control end is connected the low and high level (the second control signal CTRL) sent to receive embedded processing unit 136 with the output of embedded processing unit 136, the pin 2 of photoelectrical coupler U2 and pin 3 ground connection, the pin 4 of photoelectrical coupler U2 is connected with the pin 2 of photoelectrical coupler U1.Preferably, delay startup switch element 132 also comprises resistance R1, R2, R3, R4 and electric capacity C1, wherein one end of resistance R1 is connected with the output of input protection unit 131, the other end of resistance R1 is connected with one end of resistance R2 and the grid of field effect transistor Q1, the other end of resistance R2 is connected with the pin 4 of photoelectrical coupler U1, between the pin 2 that resistance R4 is connected to photoelectrical coupler U2 and embedded processing unit 136, one end of electric capacity C1 is connected with the drain electrode of field effect transistor Q1, the other end of electric capacity C1 is connected with one end of resistance R3, the other end of resistance R3 is connected with the grid of field effect transistor Q1, above-mentioned resistance R1 and resistance R2 forms bleeder circuit, damage for preventing the grid-source voltage of field effect transistor Q1 from exceeding its withstand voltage, preferably, a voltage stabilizing didoe can also be set between the gate-to-source of scene effect pipe Q1 or Transient Suppression Diode (TVS) protects, and resistance R4 is current-limiting resistance, damage photoelectrical coupler U2 for preventing the drive current of photoelectrical coupler U2 excessive, electric capacity C1 and resistance R3 connects and forms delay startup feedback circuit, for the time regulating field effect transistor Q1 to be operated in linear zone, thus the situation avoided the quick saturation conduction of field effect transistor Q1 and cause impulse current excessive.
Please refer to Fig. 3 again, battery detecting unit 134 in place comprises photoelectrical coupler U1 and resistance R5, the pin 1 of photoelectrical coupler U1 is connected with the anode of battery module 12, the pin 2 of photoelectrical coupler U1 is connected with delay startup switch element 132, pin 3 ground connection of photoelectrical coupler U1, the pin 4 of photoelectrical coupler U1 is connected with the first control end of delay startup switch element 132, and the output level of the pin 4 of photoelectrical coupler U1 is the first control signal.Wherein resistance R5 plays metering function, damages photoelectrical coupler U1 for preventing the drive circuit of photoelectrical coupler U1 excessive.
In Fig. 3, BAT+ and GND is respectively anode and the negative terminal of battery module 12, when battery module 12 is not in place, BAT+ is low-voltage, then photoelectrical coupler U1 turns off, the pin 4 of photoelectrical coupler U1 exports the first control signal (namely the height of pin 4 place level represents the first control signal) and field effect transistor Q1 is ended, and then the input of DC/DC converter unit 133 is low-voltage, DC/DC converter unit 133 turns off, avoid battery module 12 not in place time energy loss, otherwise, when battery module 12 is in place, BAT+ is high voltage, if the second control signal CTRL that now embedded processing module 136 exports is high voltage, then photoelectrical coupler U2 conducting, thus photoelectrical coupler U1 conducting, the pin 4 of photoelectrical coupler U1 exports the first control signal (namely the height of pin 4 place level represents the first control signal) and makes field effect transistor Q1 conducting, and then the input of DC/DC converter unit 133 is high voltage, DC/DC converter unit 133 starts, and when the second control signal CTRL of embedded processing unit 136 output is low-voltage, then photoelectrical coupler U2 turns off, thus photoelectrical coupler also U1 shutoff, field effect transistor Q1 is ended, and then the input of DC/DC converter unit 133 is low-voltage, DC/DC converter unit 133 turns off.Namely when battery module 12 is not in place or when the second control signal CTRL of exporting of the in place but embedded processing unit 136 of battery module 12 is low level, battery detecting unit 134 in place controls the field effect transistor Q1 cut-off in delay startup switch element 132, thus the input of DC/DC converter unit 133 is low-voltage, DC/DC converter unit 133 turns off, avoid battery module 12 not in place time energy dissipation or battery be not suitable under charge condition energy dissipation.
As shown in Figure 4, DC/DC converter unit 133 comprises the first filter cell, current acquisition resistance RS1, main switch Q2, transformer T1, rectifier diode D1, the second filter cell, current acquisition resistance RS2, constant current constant voltage control unit, photoelectrical coupler U3 and PWM control unit, and wherein the annexation of each several part as shown in Figure 4.Concrete, the first filter cell is the combination of capacitive filter, LC filter or π filter and RCD absorbing circuit; Second filter cell is capacitive filter, LC filter or π filter; Constant current constant voltage control unit take constant-current constant-voltage controller as the control circuit of core, and conventional constant-current constant-voltage controller comprises AP4313, SFL100, TSM103 etc.; PWM control unit is current type PWM control unit, current type PWM control unit take loop Current-type PWM Controller as the control circuit of core, conventional loop Current-type PWM Controller comprises UCx843, UCCx800, UCCx803, UCCx805 etc., preferably, current type PWM control unit also comprises timer circuit, can programme and arrange the charging interval, then controls loop Current-type PWM Controller stopping PWM output when arriving the charging interval arranged, thus turn off DC/DC converter unit 133, stop charging.
Composition graphs 2 to Fig. 4 is known, and charge management module 13 can be carried out management to the charging process of battery module 12 and be controlled, as controlled to stop the charging to battery module 12 in a case where:
A, when DC power supply 11 exports reversal connection or battery module 12 input reverse-connection, automatically stop charging to battery module 12;
B, when battery module 12 (access) not in place, photoelectrical coupler U1 in battery detecting unit 134 in place turns off thus sends the first control signal and controls field effect transistor Q1 shutoff, cut off the input voltage of DC/DC converter unit 133, stop charging to battery module 12;
C, when embedded processing unit 136 detect battery module 12 overtension or too low or too high or too low for temperature time, embedded processing unit 136 sends the second control signal CTRL (being now low level) to delay startup switch element 132, turn off photoelectrical coupler U2 thus turn off field effect transistor Q1, cut off the input voltage of DC/DC converter unit 133, stop charging to battery module 12;
D, when reach programming arrange the maximum charge time, embedded processing unit 136 sends the second control signal CTRL (being now low level) to delay startup switch element 132, turn off photoelectrical coupler U2 thus turn off field effect transistor Q1, cut off the input voltage of DC/DC converter unit 133, stop charging to battery module 12.Certainly, also PWM can be stopped to export by loop Current-type PWM Controller, and then turn off DC/DC converter unit 133 thus stop charging to battery module 12.
In addition, battery management module 13 can also to the charging process of battery carry out other control, as be less than when the voltage of battery module 12 DC/DC converter unit 133 arrange output voltage time, enter constant current mode charge (CC pattern); And when the voltage of battery module 12 equals the output voltage of DC/DC converter unit 133 setting, then enter constant voltage mode charging (CV pattern).
More than in conjunction with most preferred embodiment, the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contain various carry out according to essence of the present utility model amendment, equivalent combinations.
Claims (9)
1. a charge power supply of battery system, comprise DC power supply, battery module and charge management module, it is characterized in that, described charge management module comprises input protection unit, delay startup switch element, DC/DC converter unit and battery detecting unit in place, the input of described input protection unit is connected with the output of described DC power supply, the output of described input protection unit is connected with the input of described delay startup switch element, described battery detecting unit in place is connected to export low and high level to described delay startup switch element with the first control end of described battery module and described delay startup switch element, the output of described delay startup switch element is connected with the input of described DC/DC converter unit and starts with the low and high level exported according to described battery detecting unit in place or to turn off described DC/DC converter unit.
2. charge power supply of battery system as claimed in claim 1, it is characterized in that, described charge management module also comprises embedded processing unit, described embedded processing unit is connected with the second control end of described battery module and described delay startup switch element, and described embedded processing unit gathers the performance parameter of described battery module and exports low and high level to described delay startup switch element.
3. charge power supply of battery system as claimed in claim 1; it is characterized in that; described charge management module also comprises output protection unit; the input of described output protection unit is connected with the output of described DC/DC converter unit, and the output of described output protection unit is connected with described battery module.
4. charge power supply of battery system as claimed in claim 2, it is characterized in that, described battery detecting unit in place comprises photoelectrical coupler U1 and resistance R5, the pin 1 of described photoelectrical coupler U1 is connected with the anode of described battery module, the pin 2 of described photoelectrical coupler U1 is connected with described delay startup switch element, pin 3 ground connection of described photoelectrical coupler U1, the pin 4 of described photoelectrical coupler U1 is connected to export low and high level to described delay startup switch element with the first control end of described delay startup switch element.
5. charge power supply of battery system as claimed in claim 4, it is characterized in that, described delay startup switch element comprises field effect transistor Q1 and photoelectrical coupler U2, the source electrode of described field effect transistor Q1 is connected with the output of described input protection unit, the grid of described field effect transistor Q1 is connected with the pin 4 of described photoelectrical coupler U1, the drain electrode of described field effect transistor Q1 is connected with described DC/DC converter unit, the pin 1 of described photoelectrical coupler U2 is connected to receive the low and high level that described embedded processing unit exports with the output of described embedded processing unit, the pin 2 of described photoelectrical coupler U2 and pin 3 ground connection, the pin 4 of described photoelectrical coupler U2 is connected with the pin 2 of described photoelectrical coupler U1.
6. charge power supply of battery system as claimed in claim 5, it is characterized in that, described delay startup switch element also comprises resistance R1, R2, R3, R4 and electric capacity C1, one end of described resistance R1 is connected with the output of described input protection unit, the other end of described resistance R1 is connected with one end of described resistance R2 and the grid of described field effect transistor Q1, the other end of described resistance R2 is connected with the pin 4 of described photoelectrical coupler U1, between the pin 2 that described resistance R4 is connected to described photoelectrical coupler U2 and described embedded processing unit, one end of described electric capacity C1 is connected with the drain electrode of described field effect transistor Q1, the other end of described electric capacity C1 is connected with one end of described resistance R3, the other end of described resistance R3 is connected with the grid of described field effect transistor Q1.
7. charge power supply of battery system as claimed in claim 1, it is characterized in that, described DC/DC converter unit is constant current constant voltage DC/DC converter unit.
8. charge power supply of battery system as claimed in claim 1; it is characterized in that; described input protection unit comprises the first fuse and the first anti-reverse unit, and described first fuse and described first anti-reverse unit are connected with described DC power supply and described delay startup switch element respectively.
9. charge power supply of battery system as claimed in claim 3; it is characterized in that; described output protection unit comprises the second fuse, the second anti-reverse unit and reverse-filling unit, and described second fuse, the second anti-reverse unit are connected with described DC power supply and described delay startup switch element respectively with reverse-filling unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420844053.7U CN204559141U (en) | 2014-12-26 | 2014-12-26 | Charge power supply of battery system |
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| CN201420844053.7U CN204559141U (en) | 2014-12-26 | 2014-12-26 | Charge power supply of battery system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
| CN110768236A (en) * | 2019-11-12 | 2020-02-07 | 腾讯科技（深圳）有限公司 | Double-power supply management device |
| CN114280437A (en) * | 2021-12-27 | 2022-04-05 | 阳光电源股份有限公司 | Generator insulation detection device and method and wind power generation system |
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2014
- 2014-12-26 CN CN201420844053.7U patent/CN204559141U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340719A (en) * | 2017-08-25 | 2017-11-10 | 南昌欧菲光科技有限公司 | Start self-locking device and intelligent home control system |
| CN107340719B (en) * | 2017-08-25 | 2024-02-06 | 深圳市艾特智能科技有限公司 | Starting self-locking device and intelligent home control system |
| CN110768236A (en) * | 2019-11-12 | 2020-02-07 | 腾讯科技（深圳）有限公司 | Double-power supply management device |
| CN110768236B (en) * | 2019-11-12 | 2023-09-05 | 腾讯科技（深圳）有限公司 | Dual power management device |
| CN114280437A (en) * | 2021-12-27 | 2022-04-05 | 阳光电源股份有限公司 | Generator insulation detection device and method and wind power generation system |
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Effective date of registration: 20160214 Address after: 523808, Guangdong District, Songshan hi tech Industrial Development Zone, Dongguan, seven industrial North Road, 1 force science and technology center, 3 floor, B District Patentee after: Dongguan Powerwise Technology Co., Ltd. Address before: 523808, 101, 102, 108, 107, 408 and 3, 6 Industrial South Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Patentee before: Dongguan PowerWise New Energy Co., Ltd. |
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