CN207588553U - A kind of vanadium cell supply unit - Google Patents
A kind of vanadium cell supply unit Download PDFInfo
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- CN207588553U CN207588553U CN201721617617.3U CN201721617617U CN207588553U CN 207588553 U CN207588553 U CN 207588553U CN 201721617617 U CN201721617617 U CN 201721617617U CN 207588553 U CN207588553 U CN 207588553U
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Abstract
The utility model discloses a kind of vanadium cell supply units, including power selection circuit, auxiliary power circuit and multiple power supplies input circuit, the output terminal of multiple power supplies input circuit and the input terminal of power selection circuit and auxiliary power circuit are respectively connected with, and power selection circuit is used to be selected from multiple power supplies input circuit according to preset rules to power for vanadium cell control module as power supply output all the way；Power selection circuit is connected with auxiliary power circuit.It is high all the way that vanadium cell supply unit can automatically select stable and priority in multiple power supplies input circuit according to input；Meanwhile interruption will not be generated during power switching, so as to maintain the normal work of vanadium cell control module, it is ensured that vanadium cell energy storage for power supply system stable operation.The vanadium cell supply unit of the utility model can be automatically switched according to the power supply quality of power supply input circuit, power supply range of choice is big, power supply reliability is high.
Description
Technical field
The utility model is related to vanadium cell power supply engineering device technique fields, particularly, are related to a kind of vanadium cell supply unit.
Background technology
One of one preferred technique as current energy storage, vanadium energy storage system is safe, when running at normal temperatures and pressures,
The heat that battery system generates can effectively be discharged, then drained into except system by heat exchange by electrolyte solution；And electricity
Electrolyte solution is does not burn, inexplosive aqueous solution, and system operation is safe.Vanadium cell technology future has in energy storage industry
Beyond measure development potentiality, it could even be possible to by following energy pattern is changed.It is run in the electronic device works of vanadium cell
In, generally require the multiple power inputs of electron device configuration, in the hope of when losing a certain power supply equipment be not stopped, so as to
Prevent accident from occurring or omitting significant data.However in traditional isolation handoff technique, the often meeting in power supply switching
Switching gap is generated, causes of short duration power supply unstable, so as to which equipment weight is impacted or even generated sometimes to the service life of equipment
Open phenomenon.Existing seamless switching technique, it tends to be difficult to accomplish isolated from power and preferential selection or switching gap it is excessive or
Artificial selection is needed to switch, maloperation is easily caused in this way and damages circuit, and then power supply is set with other being added on power supply
It is standby to damage.
Utility model content
The purpose of this utility model is to provide a kind of vanadium cell supply units, are asked with solve to propose in background technology
Topic.
To achieve the above object, the utility model provides a kind of vanadium cell supply unit, including power selection circuit,
Auxiliary power circuit and multiple power supplies input circuit, the output terminal of power supply input circuit described in multichannel and the power selection circuit
It is respectively connected with the input terminal of the auxiliary power circuit, the power selection circuit is used for according to preset rules from multichannel
It selects to power for vanadium cell control module as power supply output all the way in power supply input circuit；The power selection circuit with it is described
Auxiliary power circuit is connected.
Preferably, the power selection circuit includes field-effect tube turning circuit, control chip and bleeder circuit, the field
Output terminal of the input terminal of effect pipe turning circuit respectively with power supply input circuit described in multichannel is connected, the field-effect tube conducting
The output terminal of circuit is connected with the auxiliary power circuit；Power supply input circuit described in the first end and multichannel of the bleeder circuit
Output terminal connect respectively, the second end of bleeder circuit ground connection, first point of the control chip and the bleeder circuit
Pressure output terminal and the second partial pressure output terminal are respectively connected with, and the control chip is also connected with the MOS field effect transistor turning circuit.
Preferably, the field-effect tube turning circuit includes the field-effect tube identical with the quantity of the power supply input circuit
Conducting branches, the field-effect tube conducting branches include the first field-effect tube and the second field-effect tube, first field-effect tube
Source electrode and the second field-effect tube source electrode simultaneously with it is described control chip a port be connected, first field-effect tube
Another port of grid and the grid of the second field-effect tube simultaneously with the control chip is connected, first field-effect tube
Drain electrode with wherein the output terminal of the power supply input circuit is connected all the way, the drain electrode of second field-effect tube and the auxiliary are electric
Source circuit is connected.
Preferably, the bleeder circuit includes the first divider resistance, the second divider resistance and the third partial pressure being arranged in series
Resistance, the first partial pressure output terminal are connected between first divider resistance and second divider resistance, and described second
Partial pressure output terminal is connected between second divider resistance and the third divider resistance.
Preferably, the auxiliary power circuit includes relay, diode D1 and DC/DC module, and the relay has
First contact A 1 and the second contact A 2, first contact A 1 are normally-closed contact, and second contact A 2 is normally opened contact, described
Output terminal of the one end of first contact A 1 respectively with power supply input circuit described in multichannel is connected, the other end of first contact A 1
It is connected simultaneously with the input terminal of the DC/DC modules and the cathode of the diode D1, the output terminal of the DC/DC modules and institute
Power selection circuit is stated to be connected；One end of second contact A 2 is connected with the power selection circuit, second contact A 2
The other end be connected with the anode of the diode D1.
Preferably, the vanadium cell is further included to carry out table to the power selection circuit is signals selected with supply unit
The signal indicating circuit reached, the signal indicating circuit are connected with the control chip.
Preferably, the signal indicating circuit includes input indicating circuit and output indicating circuit, the input instruction electricity
Road includes 1 piece of three input nor gate chip and 3 LED lights；The output indicating circuit includes 2 piece of three input nor gate core
Piece and 3 LED light；Every piece of three input nor gates chip is connected with the control chip.
Preferably, the vanadium cell includes three-way power input circuit, respectively mains-supplied circuit, vanadium with supply unit
Battery feed circuit and reserve battery power supply circuit.
Preferably, the control chip is LTC4417 controllers；The control chip is used for from power input described in three tunnels
Selected in circuit highest priority all the way as output.
Compared with the prior art, the utility model has the advantages that：
A kind of vanadium cell supply unit of the utility model, including power selection circuit, auxiliary power circuit and multichannel
Power supply input circuit, output terminal and the input terminal of power selection circuit and auxiliary power circuit of multiple power supplies input circuit are distinguished
It is connected, power selection circuit is used to be selected from multiple power supplies input circuit according to preset rules to be all the way vanadium as power supply output
Battery control module is powered；Power selection circuit is connected with auxiliary power circuit.Vanadium cell supply unit can be according to input certainly
Stablize in dynamic selection multiple power supplies input circuit and priority is high all the way；Meanwhile in will not being generated during power switching
It is disconnected, so as to maintain the normal work of vanadium cell control module, it is ensured that vanadium cell energy storage for power supply system stable operation.The utility model
Vanadium cell supply unit, can be automatically switched according to the power supply quality of power supply input circuit, power supply range of choice is big,
Power supply reliability is high.
Other than objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Description of the drawings
The attached drawing for forming the part of the application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description do not form the improper restriction to the utility model for explaining the utility model.In attached drawing
In：
Fig. 1 is a kind of structure diagram of vanadium cell supply unit of the utility model；
Fig. 2 is the circuit diagram of the power selection circuit of the utility model；
Fig. 3 is the circuit diagram of the auxiliary power circuit of the utility model；
Wherein, 1, power selection circuit, 1.1, field-effect tube turning circuit, 1.2, control chip, 1.3, bleeder circuit, 2,
Auxiliary power circuit, 3, power supply input circuit, 3.1, mains-supplied circuit, 3.2, vanadium cell power supply circuit, 3.3, reserve battery
Power supply circuit, 4, signal indicating circuit, 5, vanadium cell control module.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with attached drawing, but the utility model can be according to power
Profit requirement limits and the multitude of different ways of covering is implemented.
Referring to Fig. 1 to Fig. 3, a kind of vanadium cell supply unit of the utility model, including power selection circuit 1, auxiliary
Power circuit 2 and multiple power supplies input circuit 3, output terminal and the power selection circuit 1 and auxiliary electricity of multiple power supplies input circuit 3
The input terminal of source circuit 2 is respectively connected with, and power selection circuit 1 is used to be selected from multiple power supplies input circuit 3 according to preset rules
It selects and powers all the way as power supply output for vanadium cell control module 5；Power selection circuit 1 is connected with auxiliary power circuit 2.
Power selection circuit 1 includes field-effect tube turning circuit 1.1, control chip 1.2 and bleeder circuit 1.3, field-effect
Output terminal of the input terminal of pipe turning circuit 1.1 respectively with multiple power supplies input circuit is connected, field-effect tube turning circuit 1.1
Output terminal is connected with auxiliary power circuit 2；The first end of bleeder circuit 1.3 and the output terminal of multiple power supplies input circuit connect respectively
It connects, the second end ground connection of bleeder circuit 1.3, the first partial pressure output terminal and the second partial pressure of control chip 1.2 and bleeder circuit 1.3
Output terminal is respectively connected with, and control chip 1.2 is also connected with MOS field effect transistor turning circuit 1.1.
Field-effect tube turning circuit 1.1 includes three field-effect tube conducting branches, and each field-effect tube conducting branches wrap
Included the first field-effect tube and the second field-effect tube, the source electrode of the source electrode of the first field-effect tube and the second field-effect tube simultaneously with control
The a port of coremaking piece is connected, and the grid of the grid of the first field-effect tube and the second field-effect tube is another with control chip simultaneously
A port is connected, the first field-effect tube drain electrode with wherein the output terminal of power supply input circuit 3 is connected all the way, the second field-effect
The drain electrode of pipe is connected with auxiliary power circuit 2.Bleeder circuit 1.3 includes the first divider resistance being arranged in series, the second partial pressure electricity
Resistance and third divider resistance, the first partial pressure output terminal are connected between the first divider resistance and the second divider resistance, the second partial pressure
Output terminal is connected between the second divider resistance and third divider resistance.
In the present embodiment, a stabilized power source model is determined to input power in the periphery setting bleeder circuit of control chip
It encloses, priority orders is established by the inner control logic chip for controlling chip, and pass through and control field-effect tube selection switching defeated
Go out power supply.Power selection circuit can determine which power supply can export according to whether the stabilization of multiple power supplies voltage, then
According to circuit priority, power supply input circuit is automatically switched by controlling chip, passes through field-effect tube channel circuit
It makes up the gap generated in power supply input circuit handoff procedure, the power supply of energy supply control module is made to supply in handoff procedure not
Interruption can be generated, maintains the normal work of vanadium cell control module.
In the present embodiment, auxiliary power circuit 2 includes relay, diode D1 and DC/DC module, and relay has the
One contact A 1 and the second contact A 2, the first contact A 1 be normally-closed contact, the second contact A 2 be normally opened contact, the one of the first contact A 1
Output terminal respectively with multiple power supplies input circuit is held to be connected, the other end of the first contact A 1 respectively and meanwhile with DC/DC modules
Input terminal is connected with the cathode of diode D1, and the output terminal of DC/DC modules is connected with the control chip 1.2 of power selection circuit；
One end of second contact A 2 is connected with the field-effect tube turning circuit 1.1 of power selection circuit, the other end of the second contact A 2 with
The anode of diode D1 is connected.In the structure, 24 volts of voltages that auxiliary power circuit inputs selection circuit are defeated by relay
Enter to DC/DC modules and be converted into 5 volts, be some electronics inside power selection circuit；In selection circuit inner core
Before piece starts, auxiliary power circuit supplies electric energy, output 5V voltage starting control chips by power supply input circuit；Control chip opens
After dynamic, the contact A 2 of auxiliary power circuit repeat circuit is closed, and auxiliary power circuit is powered by the output terminal of power selection circuit.
In the present embodiment, vanadium cell includes three-way power input circuit 3, respectively mains-supplied circuit with supply unit
3.1st, vanadium cell power supply circuit 3.2 and reserve battery power supply circuit 3.3.In the structure, mains-supplied is big from stabilization
Power grid belongs to the first preferential level power supply, under normal circumstances substantially by commercial power supply, i.e., without have a power failure and voltage stabilization in the case of
All it is commercial power supply；AC/DC modules in alternating current circuit powered by main are converted to 24 volts of voltages, flow into power supply selection electricity
Road.Vanadium cell power supply belongs to the second preferential level power supply, vanadium cell power supply passes through vanadium electricity from the electric energy of vanadium cell storage inside
DC/DC modules in the circuit of pond are converted to 24 volts of voltages, flow into power selection circuit.Reserve battery power supply is from standby energy storage
Power supply belongs to third priority power supply, when alternating current and vanadium cell have a power failure or spread of voltage in the case of just by reserve battery
Power supply.
In the present embodiment, control chip 1.2 is LTC4417 controllers；Chip 1.2 is controlled to be used to input from multiple power supplies
Selected in circuit highest priority all the way as output.
In the present embodiment, vanadium cell is further included with supply unit for whether the whether effective, output to the input of three tunnels to have
Effect gives the signal indicating circuit 4 of instruction, and indicating circuit 4 is connected with control chip 1.2.Specifically, signal indicating circuit 4 includes
Indicating circuit and output indicating circuit are inputted, whether input indicating circuit is effective for determining multiple power supplies input, including 1 piece
74HC27 tri- inputs nor gate chip and 3 LED lights；Output indicating circuit is used to determine power output end by multiple power supplies
Which power supply in input circuit, nor gate chip and 3 LED light are inputted including 2 pieces of 74H,C27 tri-；Every piece three input or
NOT gate chip is connected with control chip 1.2.Specifically, when three road input powers are effective, 3 in corresponding input indicating circuit
A LED light is all lighted；When power selection circuit selectes city's electricity output, output indicating circuit inputs corresponding with alternating current
LED light is lighted.
In the present embodiment, when vanadium cell electric power system starts, electric current is exported from three-way power input circuit to auxiliary electricity
Source circuit, auxiliary power circuit are inputted.Electric current by the contact A 1 of relay inputs DC/DC modules, and (voltage is converted by 24V
Into 5V) it is output to power selection circuit again, to the chip power supplies at different levels in power selection circuit.As shown in figure 3, power supply selection electricity
After LTC4417 controller electrifying startups in road, voltage that comparator inside controller inputs the three-way power of input terminal
Judged, the voltage in prescribed limit could be exported by power selection circuit.After having judged power input voltage quality,
According to the priority that LTC4417 controllers are set, the high power supply of stable priority is exported at this time --- alternating current inputs, with alternating current
The corresponding field-effect tube turning circuit conducting of power supply circuit, city's electricity output.After power selection circuit selectes out-put supply, auxiliary electricity
The relay power input terminal on road obtains electric current and passes through, the A2 contact closures of relay.At this point, the power supply of auxiliary power circuit comes
Stablize output for selection circuit in source.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of vanadium cell supply unit, which is characterized in that including power selection circuit (1), auxiliary power circuit (2) and more
Road power supply input circuit (3), the output terminal of power supply input circuit (3) described in multichannel and the power selection circuit (1) and described
The input terminal of auxiliary power circuit (2) is respectively connected with, and the power selection circuit (1) is for according to preset rules from multichannel
It selects to power for vanadium cell control module (5) as power supply output all the way in power supply input circuit (3)；The power selection circuit
(1) it is connected with the auxiliary power circuit (2).
2. vanadium cell supply unit according to claim 1, which is characterized in that the power selection circuit (1) includes
Field-effect tube turning circuit (1.1), control chip (1.2) and bleeder circuit (1.3), the field-effect tube turning circuit (1.1)
Output terminal of the input terminal respectively with power supply input circuit described in multichannel (3) be connected, the field-effect tube turning circuit (1.1)
Output terminal is connected with the auxiliary power circuit (2)；Power input electricity described in the first end and multichannel of the bleeder circuit (1.3)
The output terminal on road (3) connects respectively, the second end ground connection of the bleeder circuit (1.3), described to control chip (1.2) and described point
Volt circuit (1.3) first partial pressure output terminal and second partial pressure output terminal be respectively connected with, it is described control chip (1.2) also with it is described
Field-effect tube turning circuit (1.1) is connected.
3. vanadium cell supply unit according to claim 2, which is characterized in that the field-effect tube turning circuit
(1.1) including the field-effect tube conducting branches identical with the quantity of the power supply input circuit (3), the field-effect tube conducting branch
Road includes the first field-effect tube and the second field-effect tube, and the source electrode of first field-effect tube and the source electrode of the second field-effect tube are same
When with it is described control chip a port be connected, the grid of first field-effect tube and the grid of the second field-effect tube are simultaneously
It is connected with another port of the control chip, the drain electrode of first field-effect tube and wherein power input electricity all the way
The output terminal on road (3) is connected, and the drain electrode of second field-effect tube is connected with the auxiliary power circuit (2).
4. vanadium cell supply unit according to claim 2, which is characterized in that the bleeder circuit (1.3) includes string
Join the first divider resistance, the second divider resistance and the third divider resistance of setting, the first partial pressure output terminal is connected to described
Between first divider resistance and second divider resistance, it is described second partial pressure output terminal be connected to second divider resistance and
Between the third divider resistance.
5. vanadium cell supply unit according to claim 2, which is characterized in that the auxiliary power circuit (2) includes
Relay, diode D1 and DC/DC module, the relay have the first contact A 1 and the second contact A 2, first contact
A1 is normally-closed contact, and second contact A 2 is normally opened contact, one end of first contact A 1 respectively with power supply described in multichannel
The output terminal of input circuit is connected, the other end of first contact A 1 simultaneously with the input terminal of the DC/DC modules and described
The cathode of diode D1 is connected, and the output terminal of the DC/DC modules is connected with the power selection circuit (1)；Described second touches
One end of point A2 is connected with the power selection circuit (1), and the other end of second contact A 2 and the diode D1 are just
Extremely it is connected.
6. vanadium cell supply unit according to claim 2, which is characterized in that the vanadium cell is also wrapped with supply unit
It includes for the signal indicating circuit (4) expressed signals selected to the power selection circuit (1), the signal indicating circuit
(4) it is connected with the control chip (1.2).
7. vanadium cell supply unit according to claim 6, which is characterized in that the signal indicating circuit (4) includes
Indicating circuit and output indicating circuit are inputted, the input indicating circuit includes 1 piece of three input nor gate chip and 3 LED refer to
Show lamp；The output indicating circuit includes 2 piece of three input nor gate chip and 3 LED light；Every piece of three inputs nor gate core
Piece is connected with the control chip (1.2).
8. according to claim 2-7 any one of them vanadium cell supply units, which is characterized in that the vanadium cell power supply
Device includes three-way power input circuit (3), respectively mains-supplied circuit (3.1), vanadium cell power supply circuit (3.2) and standby
With battery feed circuit (3.3).
9. vanadium cell supply unit according to claim 8, which is characterized in that it is described control chip (1.2) be
LTC4417 controllers；The control chip (1.2) is for one of the selection highest priority from power supply input circuit described in three tunnels
Road is as output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617617.3U CN207588553U (en) | 2017-11-28 | 2017-11-28 | A kind of vanadium cell supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617617.3U CN207588553U (en) | 2017-11-28 | 2017-11-28 | A kind of vanadium cell supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588553U true CN207588553U (en) | 2018-07-06 |
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ID=62734140
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617617.3U Active CN207588553U (en) | 2017-11-28 | 2017-11-28 | A kind of vanadium cell supply unit |
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| Country | Link |
|---|---|
| CN (1) | CN207588553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069591A (en) * | 2021-10-11 | 2022-02-18 | 许继电源有限公司 | Multi-port input auxiliary power supply device, system and control method thereof |
-
2017
- 2017-11-28 CN CN201721617617.3U patent/CN207588553U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069591A (en) * | 2021-10-11 | 2022-02-18 | 许继电源有限公司 | Multi-port input auxiliary power supply device, system and control method thereof |
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