CN205489606U - Spare circuit of battery and direct current system - Google Patents
Spare circuit of battery and direct current system Download PDFInfo
- Publication number
- CN205489606U CN205489606U CN201620036313.7U CN201620036313U CN205489606U CN 205489606 U CN205489606 U CN 205489606U CN 201620036313 U CN201620036313 U CN 201620036313U CN 205489606 U CN205489606 U CN 205489606U
- Authority
- CN
- China
- Prior art keywords
- accumulator
- secondary battery
- battery unit
- little secondary
- electrical load
- 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.)
- Active
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is suitable for a dc supply technical field especially relates to a spare circuit of battery and direct current system. The utility model discloses an in the embodiment, the spare circuit of battery includes storage battery, storage battery holds A series of cells by the multisection and forms, storage battery is as the stand -by power supply of electrical load. The utility model discloses an in the embodiment, through inciting somebody to action storage battery divide into a plurality of cell that hold for a short time to to for parallelly connected one between every positive negative pole that holds cell for a short time for a short time, the voltage that holds the cell both ends rises to the boost module of the required voltage of electrical load, when some battery in some holds cell for a short time broke down like this, other hold cell for a short time may not be influenced, continues to do the electrical load provides its required voltage, has improved direct current system's stability.
Description
Technical field
This utility model belongs to direct current supply field, particularly relates to a kind of accumulator fallback circuit and direct current supply
System.
Background technology
In power engineering, the effect of DC power-supply system is that the alternating current that alternating current power supply inputs is converted to electricity
Unidirectional current needed for power load, general DC power-supply system includes accumulator battery and multiple charging module, such as figure
Shown in 1, the plurality of charging module is connected to the outfan of described alternating current power supply by electric lines of force, by described
It is that described electrical load supplies that the 380V alternating current of alternating current power supply output is converted to cross feeder switch after unidirectional current leads to
Electricity, is described battery charging simultaneously also by and off switch, makes described accumulator battery be in saturation.
Described accumulator battery in the case of alternating current power supply dead electricity, can as the guarantee of finally powering of DC power-supply system,
The unidirectional current needed for its work is provided for described electrical load.
Generally, the accumulator battery in DC power-supply system is to be in series by multiple accumulator, is handing over
In the case of stream power loss, if some accumulator in accumulator battery breaks down, as certain accumulator is opened
Road, may result in whole accumulator battery and is in malfunction, it is impossible to provide it required for described electrical load
Unidirectional current, causes described electrical load cisco unity malfunction.
Utility model content
The purpose of this utility model embodiment is to provide a kind of accumulator fallback circuit, it is intended to solve by multiple
Some accumulator in the accumulator battery that accumulator is in series breaks down and causes the whole accumulator battery can not
The problem of normal work.
This utility model embodiment is achieved in that a kind of accumulator fallback circuit, including dc bus and
Accumulator battery, described accumulator battery is in series by more piece accumulator, the positive pole of described accumulator battery and negative pole
It is connected with main track and the negative wire of described dc bus respectively, described dc bus is further connected with electrical load, institute
Stating the stand-by power supply that accumulator battery is described electrical load, described accumulator battery is divided into multiple little secondary battery unit,
Between the both positive and negative polarity of each little secondary battery unit, parallel connection one can be by the voltage liter at described little secondary battery unit two ends
To the boost module of described electrical load required voltage, the outfan of all boost modules is all female with described direct current
Line connects.
Further, described accumulator fallback circuit also includes multiple input being serially connected with described boost module,
The conducting controlling described boost module and the control switch disconnected.
Further, described accumulator battery includes 18 joint accumulator.
Further, described accumulator battery be divided into the first little secondary battery unit, the second little secondary battery unit,
Three little secondary battery units and the 4th little secondary battery unit, described first little secondary battery unit, the second little accumulator
Unit, the 3rd little secondary battery unit and the 4th little secondary battery unit all comprise 4 joint accumulator.
Further, described accumulator fallback circuit includes 4 boost modules, described accumulator fallback circuit
Including 4 boost modules, described 4 boost modules are just being parallel to described first little secondary battery unit respectively
Between negative pole, between the both positive and negative polarity of described second little secondary battery unit, described 3rd little secondary battery unit just
Between negative pole and between the both positive and negative polarity of described 4th little secondary battery unit.
Another object of the present utility model also resides in a kind of DC power-supply system of offer, and described electric power system includes
Accumulator fallback circuit as described above.
Further, described DC power-supply system also includes:
Alternating current power supply and multiple the alternating current that described alternating current power supply provides is converted to described electrical load needed for
Galvanic charging module；
The input of the plurality of charging module is connected to the outfan of described alternating current power supply by electric lines of force；Institute
The outfan stating multiple charging module is connected to described dc bus altogether.
In embodiment of the present utility model, described accumulator fallback circuit includes accumulator battery, described electric power storage
Pond group is in series by more piece accumulator, and described accumulator battery is as the stand-by power supply of electrical load.In this reality
With in novel embodiment, by described accumulator battery being divided into multiple little secondary battery unit, and each little
Between the both positive and negative polarity of secondary battery unit, the voltage at described little secondary battery unit two ends is risen to described electricity by one in parallel
, so there is event when some accumulator in some little secondary battery unit in the boost module of power load required voltage
During barrier, other little secondary battery units can be unaffected, continues as described electrical load and provides its required electricity
Pressure, improves the stability of DC power-supply system.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of DC power-supply system in prior art；
Fig. 2 is the circuit structure diagram of the accumulator fallback circuit that this utility model first embodiment provides；
Fig. 3 is the circuit structure diagram of the DC power-supply system that this utility model the second embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
First embodiment
Fig. 2 shows the circuit structure of the accumulator fallback circuit that this utility model first embodiment provides, for
It is easy to explanation, illustrate only the part relevant to this utility model embodiment.
A kind of accumulator fallback circuit, including dc bus (main track+KM, negative wire-KM) and accumulator battery
1, accumulator battery 1 is in series by more piece accumulator, the positive pole of accumulator battery 1 and negative pole respectively with described directly
Main track+the KM and negative wire-KM of stream bus connect, and described dc bus is further connected with electrical load 3, electric power storage
Pond group 1 is the stand-by power supply of electrical load 3, and accumulator battery 1 is divided into multiple little secondary battery unit, Mei Ge little
Between the both positive and negative polarity of secondary battery unit, the voltage at described little secondary battery unit two ends can be risen to described by one in parallel
The boost module 5 of electrical load required voltage, the outfan of all boost modules 5 all with described dc bus
Connect.
As an embodiment of the present utility model, described accumulator fallback circuit also includes multiple being serially connected with boosting
The input of module 5, the conducting controlling boost module 5 and the control switch 6 disconnected.In the present embodiment,
Boost module 5 connects the input that end is boost module 5, each boost module 5 with little secondary battery unit
Two inputs be serially connected with a control switch 6 respectively, when two of the input of a boost module 5
When control switch 6 all closes, this boost module 5 is started working.
As an embodiment of the present utility model, described accumulator fallback circuit also includes feeder switch 4, feedback
Wiretap 4 is serially connected with between electrical load 3 and described dc bus.
As an embodiment of the present utility model, described accumulator fallback circuit also includes controlling accumulator battery 1
Conducting and the on and off switch 2 disconnected, on and off switch 2 be connected to accumulator battery 1 and described dc bus it
Between.
As an embodiment of the present utility model, accumulator battery includes 18 joint accumulator.Concrete, often save storage
The voltage of battery is about 12V, and the power supply at whole accumulator battery 18 two ends is about 220V.
As an embodiment of the present utility model, accumulator battery 1 is divided into the first little secondary battery unit, second little
Secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit, described first little secondary battery unit,
Second little secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit all comprise 4 joint accumulator,
Additionally residue 2 joint accumulator.
As an embodiment of the present utility model, described accumulator fallback circuit includes 4 boost modules, institute
State accumulator fallback circuit and include that 4 boost modules, described 4 boost modules are parallel to described first respectively
Between the both positive and negative polarity of little secondary battery unit, between the both positive and negative polarity of described second little secondary battery unit, the described 3rd
Between the both positive and negative polarity of little secondary battery unit and between the both positive and negative polarity of described 4th little secondary battery unit.
In the present embodiment, the voltage at each little secondary battery unit two ends is 12 × 4=48V, when described first
When little secondary battery unit, described 3rd little secondary battery unit, described 4th little secondary battery unit all break down,
The control at described second little secondary battery unit two ends can be switched Guan Bi, now be parallel to described second little electric power storage
Boost module between pool unit both positive and negative polarity is started working, and this boost module is by described second little accumulator battery two
The 48V voltage of end rises to 220V and powers to be individually for described electrical load.
Second embodiment
Fig. 3 shows the circuit structure diagram of the DC power-supply system that this utility model the second embodiment provides, for
It is easy to explanation, illustrate only the part relevant to this utility model embodiment.
A kind of DC power-supply system, described electric power system includes accumulator fallback circuit, and described accumulator backs up
Circuit includes dc bus (main track+KM, negative wire-KM) and accumulator battery 1, and accumulator battery 1 is by more piece
Accumulator is in series, the positive pole of accumulator battery 1 and negative pole respectively with the main track+KM of described dc bus and
Negative wire-KM connects, and described dc bus is further connected with electrical load 3, and accumulator battery 1 is electrical load 3
Stand-by power supply, accumulator battery 1 is divided into multiple little secondary battery unit, the both positive and negative polarity of each little secondary battery unit
Between one in parallel the voltage at described little secondary battery unit two ends can be risen to described electrical load required voltage
Boost module 5, the outfan of all boost modules 5 is all connected with described dc bus.
As an embodiment of the present utility model, described accumulator fallback circuit also includes multiple being serially connected with boosting
The input of module 5, the conducting controlling boost module 5 and the control switch 6 disconnected.In the present embodiment,
Boost module 5 connects the input that end is boost module 5, each boost module 5 with little secondary battery unit
Two inputs be serially connected with a control switch 6 respectively, when two of the input of a boost module 5
When control switch 6 all closes, this boost module 5 is started working.
As an embodiment of the present utility model, described accumulator fallback circuit also includes feeder switch 4, feedback
Wiretap 4 is serially connected with between electrical load 3 and described dc bus.
As an embodiment of the present utility model, described accumulator fallback circuit also includes controlling accumulator battery 1
Conducting and the on and off switch 2 disconnected, on and off switch 2 be connected to accumulator battery 1 and described dc bus it
Between.
As an embodiment of the present utility model, accumulator battery includes 18 joint accumulator.Concrete, often save storage
The voltage of battery is about 12V, and the power supply at whole accumulator battery 18 two ends is about 220V.
As an embodiment of the present utility model, accumulator battery 1 is divided into the first little secondary battery unit, second little
Secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit, described first little secondary battery unit,
Second little secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit all comprise 4 joint accumulator,
Additionally residue 2 joint accumulator.
As an embodiment of the present utility model, described accumulator fallback circuit includes 4 boost modules, institute
State accumulator fallback circuit and include that 4 boost modules, described 4 boost modules are parallel to described first respectively
Between the both positive and negative polarity of little secondary battery unit, between the both positive and negative polarity of described second little secondary battery unit, the described 3rd
Between the both positive and negative polarity of little secondary battery unit and between the both positive and negative polarity of described 4th little secondary battery unit.
In the present embodiment, the voltage at each little secondary battery unit two ends is 12 × 4=48V, when described first
When little secondary battery unit, described 3rd little secondary battery unit, described 4th little secondary battery unit all break down,
The control at described second little secondary battery unit two ends can be switched Guan Bi, now be parallel to described second little electric power storage
Boost module between pool unit both positive and negative polarity is started working, and this boost module is by described second little accumulator battery two
The 48V voltage of end rises to 220V and powers to be individually for described electrical load.
As an embodiment of the present utility model, described DC power-supply system also includes:
Alternating current power supply 7 and multiple the alternating current that described alternating current power supply provides is converted to described electrical load needed for
Galvanic charging module 8；
The input of multiple charging modules 8 is connected to the outfan of alternating current power supply 7 by electric lines of force；Multiple fill
The outfan of electricity module 8 is connected to described dc bus altogether.
Below in conjunction with operation principle, embodiment of the present utility model is described further:
In figure 3, when alternating current power supply 7 inputs normal, the alternating current of 380V is changed by charging module 8
For the 220V unidirectional current needed for electrical load 3, and powered for electrical load 3 by feeder switch 4, together
Time charged for accumulator battery 1 by and off switch 2, make accumulator battery be in electricity saturation.
When alternating current power supply 7 inputs dead electricity, charging module 8 quits work, if now in accumulator battery 1
All accumulator are all without open circuit or other faults, then accumulator battery 1 normally works, and accumulator battery 1 is by feedback
Wiretap 4 is powered for electrical load 3, during accumulator battery 1 is powered for electrical load 3, and electric power storage
The voltage of pond group 1 is gradually lowered, and when the voltage of accumulator battery 1 is down to 220V, boost module 5 starts
Work, to ensure that the voltage that accumulator battery 1 provides for electrical load is not less than 220V.When accumulator battery 1
In all battery dischargings when completing, whole system just quits work.
When alternating current power supply 7 inputs dead electricity, charging module 8 quits work, if now in accumulator battery 1
There are open circuit or other faults in certain accumulator, then the little secondary battery unit at this accumulator place quits work,
And other little secondary battery units can pass through boost module, the voltage at described little secondary battery unit two ends is risen to
220V, continues as described electrical load and powers, improve the stability of DC power-supply system.
In embodiment of the present utility model, described accumulator fallback circuit includes accumulator battery, described electric power storage
Pond group is in series by more piece accumulator, and described accumulator battery is as the stand-by power supply of electrical load.In this reality
With in novel embodiment, by described accumulator battery being divided into multiple little secondary battery unit, and each little
Between the both positive and negative polarity of secondary battery unit, the voltage at described little secondary battery unit two ends is risen to described electricity by one in parallel
, so there is event when some accumulator in some little secondary battery unit in the boost module of power load required voltage
During barrier, other little secondary battery units can be unaffected, continues as described electrical load and provides its required electricity
Pressure, improves the stability of DC power-supply system.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (7)
1. an accumulator fallback circuit, including dc bus and accumulator battery, described accumulator battery is in series by more piece accumulator, the positive pole of described accumulator battery and negative pole are connected with main track and the negative wire of described dc bus respectively, it is further connected with electrical load on described dc bus, described accumulator battery is the stand-by power supply of described electrical load, it is characterized in that, described accumulator battery is divided into multiple little secondary battery unit, a boost module that the voltage at described little secondary battery unit two ends can be risen to described electrical load required voltage in parallel between the both positive and negative polarity of each little secondary battery unit, the outfan of all boost modules is all connected with described dc bus.
2. accumulator fallback circuit as claimed in claim 1, it is characterised in that described accumulator fallback circuit also includes multiple input being serially connected with described boost module, the conducting controlling described boost module and the control switch disconnected.
3. accumulator fallback circuit as claimed in claim 1, it is characterised in that described accumulator battery includes 18 joint accumulator.
4. accumulator fallback circuit as claimed in claim 3, it is characterized in that, described accumulator battery is divided into the first little secondary battery unit, the second little secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit, described first little secondary battery unit, the second little secondary battery unit, the 3rd little secondary battery unit and the 4th little secondary battery unit all to comprise 4 joint accumulator.
5. accumulator fallback circuit as claimed in claim 4, it is characterized in that, described accumulator fallback circuit includes that 4 boost modules, described 4 boost modules are parallel between the both positive and negative polarity of described first little secondary battery unit, between the both positive and negative polarity of described second little secondary battery unit, between the both positive and negative polarity of described 3rd little secondary battery unit and between the both positive and negative polarity of described 4th little secondary battery unit respectively.
6. a DC power-supply system, it is characterised in that described electric power system includes the accumulator fallback circuit as described in claim 1-5 any one.
7. DC power-supply system as claimed in claim 6, it is characterised in that described DC power-supply system also includes:
Alternating current power supply and the multiple galvanic charging module alternating current that described alternating current power supply provides is converted to needed for described electrical load；
The input of the plurality of charging module is connected to the outfan of described alternating current power supply by electric lines of force；The outfan of the plurality of charging module is connected to described dc bus altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036313.7U CN205489606U (en) | 2016-01-14 | 2016-01-14 | Spare circuit of battery and direct current system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620036313.7U CN205489606U (en) | 2016-01-14 | 2016-01-14 | Spare circuit of battery and direct current system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489606U true CN205489606U (en) | 2016-08-17 |
Family
ID=56669263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620036313.7U Active CN205489606U (en) | 2016-01-14 | 2016-01-14 | Spare circuit of battery and direct current system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205489606U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155707A (en) * | 2018-02-01 | 2018-06-12 | 深圳奥特迅电力设备股份有限公司 | A kind of DC bus powered system and its control method |
| CN110571909A (en) * | 2019-09-27 | 2019-12-13 | 国网重庆市电力公司璧山供电分公司 | open circuit protection mechanism for storage battery |
| CN110994754A (en) * | 2019-12-10 | 2020-04-10 | 国网山东省电力公司威海供电公司 | Portable direct current standby power supply |
| CN111361765A (en) * | 2020-03-19 | 2020-07-03 | 上海卫星工程研究所 | Spacecraft power supply double-bus system |
-
2016
- 2016-01-14 CN CN201620036313.7U patent/CN205489606U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155707A (en) * | 2018-02-01 | 2018-06-12 | 深圳奥特迅电力设备股份有限公司 | A kind of DC bus powered system and its control method |
| CN110571909A (en) * | 2019-09-27 | 2019-12-13 | 国网重庆市电力公司璧山供电分公司 | open circuit protection mechanism for storage battery |
| CN110994754A (en) * | 2019-12-10 | 2020-04-10 | 国网山东省电力公司威海供电公司 | Portable direct current standby power supply |
| CN111361765A (en) * | 2020-03-19 | 2020-07-03 | 上海卫星工程研究所 | Spacecraft power supply double-bus system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101447666B (en) | Power supply system and power overvoltage safety protection control method | |
| CN205489606U (en) | Spare circuit of battery and direct current system | |
| CN103354385B (en) | Mobile robot multi-battery seamless switching circuit | |
| CN208707382U (en) | A kind of online zero switching bidirectional energy-storage system | |
| CN101710728A (en) | Method and device for supplying power to chassis equipment of communication machine room | |
| CN205070433U (en) | Exchange direct current device | |
| CN107863818B (en) | Intelligent integrated uninterrupted multi-path direct current output switching power supply | |
| CN202276184U (en) | Large-scale charge and discharge combination chopper constant voltage ongoing direct-current power supply device | |
| CN209402227U (en) | A kind of lithium battery group energy-storage system comprising multiple uninterruptible power supplies | |
| CN104701936B (en) | UPS second circuit and second method | |
| CN208190343U (en) | One kind supplies power with double circuit system | |
| CN207977740U (en) | Miniature data center's power supply system | |
| CN207565864U (en) | It is tethered at ground handling station and is tethered at UAV system | |
| CN205864051U (en) | Many power supplys change controller switching equipment automatically | |
| CN212435364U (en) | System power supply device of photovoltaic inverter and photovoltaic inverter | |
| CN205753568U (en) | A kind of elevator five side's intercom system back-up source using ultracapacitor | |
| CN209642393U (en) | A kind of modularized dc ups power system | |
| CN211556951U (en) | Power supply circuit and auxiliary power supply circuit | |
| CN107826266A (en) | It is tethered at ground handling station and is tethered at UAS | |
| CN209282836U (en) | A kind of control cabinet power supply redundancy power supply unit | |
| CN202840585U (en) | Charger system and rail vehicle | |
| CN105680555A (en) | Wind power generation and supply system | |
| CN104485491B (en) | One activates DC power system online | |
| CN211405584U (en) | Uninterrupted power supply control circuit of energy storage control system | |
| CN221126941U (en) | Standby battery pack power supply circuit capable of automatically switching power supply modes and power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |