CN208094277U - A kind of standby usage battery powered automatic switchover output circuit - Google Patents
A kind of standby usage battery powered automatic switchover output circuit Download PDFInfo
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- CN208094277U CN208094277U CN201820689798.9U CN201820689798U CN208094277U CN 208094277 U CN208094277 U CN 208094277U CN 201820689798 U CN201820689798 U CN 201820689798U CN 208094277 U CN208094277 U CN 208094277U
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Abstract
The utility model discloses a kind of standby usage battery powereds to automatically switch output circuit, including：Battery input module, handover module and output end, battery input module are connect through handover module with output end；Wherein, battery input module includes main battery and reserve battery, and handover module includes electric controller and unidirectional controllable devices；The anode of main battery is connect with the first control terminal of the normally open end of electric controller and electric controller respectively；Second control terminal of electric controller is connect with the anode of unidirectional controllable devices；The normal-closed end of electric controller and the anode of reserve battery connect；The common end of electric controller is connect with output end；The control pole of unidirectional controllable devices and the anode of main battery connect；The minus earth of unidirectional controllable devices.Standby usage battery powered provided by the utility model automatically switches output circuit, it is suitable for requiring bigger equipment to control output current, can effectively realize main battery and reserve battery switching power supply.
Description
Technical field
The utility model is related to a kind of standby usage battery powereds to automatically switch output circuit.
Background technology
In the electronic equipments such as some current electric tools or the portable electronic instrument for requiring long-term non-stop run by original
When next wired power supply develops into present lithium battery power supply, configuration main battery and reserve battery dual power supply device are often required that.When
When main battery equipment electricity is used up or broken down, at this time requires to automatically switch to reserve battery power supply immediately, vacate simultaneously
Time replaces main battery in time, ensures that electronic equipment being capable of long-term non-stop run.
Existing current standby usage battery output switching majority is microcontroller and metal-oxide-semiconductor control, there is design complexity, output electricity
It is limited etc. unfavorable to flow.
Therefore, how to design a kind of battery switching circuit that bigger equipment is required control output current, it appears
It is particularly important.
Invention content
In view of the shortcomings of the prior art, it is defeated to be to provide a kind of standby usage battery powered automatic switchover for the purpose of this utility model
Go out circuit, it is suitable for requiring bigger equipment, such as electric tool to control output current.
To achieve the above object, the utility model provides a kind of standby usage battery powered automatic switchover output circuit, packet
It includes：
Battery input module, handover module and output end, the battery input module through the handover module with it is described defeated
Outlet connects；Wherein, the battery input module includes main battery and reserve battery, the handover module include electric controller and
Unidirectional controllable devices；
Positive the first control terminal with the normally open end of the electric controller and the electric controller respectively of the main battery
Connection；Second control terminal of the electric controller is connect with the anode of the unidirectional controllable devices；The electric controller it is normally closed
It holds and is connect with the anode of the reserve battery；The common end of the electric controller is connect with the output end；
The control pole of the unidirectional controllable devices is connect with the anode of the main battery；The cathode of the unidirectional controllable devices
Ground connection.
Compared with prior art, standby usage battery powered disclosed by the utility model automatically switches output circuit, by setting
Handover module is set, in main battery not enough power supply, switches to reserve battery power supply, main battery and reserve battery are separately connected automatically controlled
The normally open end of device processed and normal-closed end control conducting and the closure of electric controller by the conducting of unidirectional controllable devices with shutdown, from
And effectively realize the switching power supply of main battery and reserve battery.
According to another specific implementation mode of the utility model, the electric controller is relay, the relay it is normally opened
It holds and is connect with the anode of the main battery, the normal-closed end of the relay is connect with the anode of the reserve battery, the relay
The common end of device is connect with the output end, and the first control terminal of the relay is connect with the anode of the main battery；It is described
Second control terminal of relay is connect with the anode of the unidirectional controllable devices.
According to another specific implementation mode of the utility model, the unidirectional controllable devices are one-way SCR, described unidirectional
Silicon-controlled control pole is connect with the anode of the main battery, and the anode of the one-way SCR is controlled with the electric controller second
End connection processed, the minus earth of the one-way SCR.
According to another specific implementation mode of the utility model, the standby usage battery powered automatically switches output circuit and also wraps
Include conducting voltage setup module；The conducting voltage setup module includes first resistor and adjustable voltage unit；First electricity
One end of resistance is connect with the anode of the main battery, other end one side and the unidirectional controllable devices of the first resistor
Control pole connects, on the other hand the other end of the first resistor is connect with the adjustable voltage unit；The adjustable voltage list
On the one hand one end of member connect with the first resistor, one end of the adjustable voltage unit on the other hand with it is described it is unidirectional controllably
The control pole of device connects, the other end ground connection of the adjustable voltage unit.
In the present embodiment, by the way that conducting voltage setup module is arranged, the conducting voltage of unidirectional controllable devices can be set, controlled
The turn-on and turn-off of unidirectional controllable devices prevent from being powered down source boost in voltage and main battery and reserve battery are caused frequently to cut back and forth
It changes.
According to another specific implementation mode of the utility model, the standby usage battery powered automatically switches output circuit and also wraps
Include circuit protection unit；The circuit protection unit includes second resistance；One end of the second resistance and the main battery
Anode connection；The other end of the second resistance is connect with the first control terminal of the electric controller.
According to another specific implementation mode of the utility model, the standby usage battery powered automatically switches output circuit and also wraps
Include switch；One end of the switch is connect with the anode of the main battery；The other end of the switch and the electric controller
Normally open end connects.
According to another specific implementation mode of the utility model, the adjustable voltage unit includes potentiometer；The potentiometer
One end on the one hand connect with the first resistor；The control of one end another aspect and the unidirectional controllable devices of the potentiometer
Pole connection processed；The other end of the potentiometer is grounded.
Active and standby battery powered provided by the utility model automatically switches output circuit, the case where load is DC equipment
When, when main battery and reserve battery supplying power for outside, after main battery voltage is too low or output protection, circuit automatically switches to spare
Battery exports load supplying.The utility model powers on initial default main battery and is in power supply output state, is switched to standby electricity
Chi Hou, if main battery voltage is more than circuit configuration voltage, circuit switches back into main battery for electricity output again.The utility model provides
Active and standby battery powered automatically switch output circuit, by be arranged conducting voltage setup module first resistor and potentiometer, by
It is adjustable in potentiometer, the conducting voltage of one-way SCR can be set, the turn-on and turn-off of one-way SCR are controlled, prevent from being powered down
Source boost in voltage causes main battery and reserve battery frequent switching back and forth；By the conducting of one-way SCR and shutdown come control after
The conducting of electric appliance and closure, to realize the automatic switchover of main battery and reserve battery.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Description of the drawings
Fig. 1 is the circuit diagram that the standby usage battery powered that embodiment 1 provides automatically switches output circuit.
Specific implementation mode
Embodiment 1
It is the circuit diagram that standby usage battery powered provided in this embodiment automatically switches output circuit referring to Fig. 1.This is active and standby
Automatically switching output circuit with battery powered includes：Battery input module, switch S1, handover module, conducting voltage setup module,
Circuit protection unit and output end, battery input module are connect through handover module with output end,
Wherein, the battery input module includes main battery V1 and reserve battery V2, and the handover module includes electric control
Device and unidirectional controllable devices.The conducting voltage setup module includes first resistor R1 and adjustable voltage unit；Adjustable voltage list
Member includes potentiometer R2, and circuit protection unit includes second resistance R3.
In the present embodiment, electric controller is relay KZ1, and unidirectional controllable devices are one-way SCR Q2.
On the one hand the anode of the main battery V1 is connect through the switch S1 with the normally open end K of the relay KZ1, described
First control terminal 2 of the anode of main battery V1 through the switch S1 on the other hand through the second resistance R2 and relay KZ1 connects
It connects；The second control terminal 1 of the relay KZ1 is connect with the anode of the one-way SCR Q2；The relay KZ1's is normally closed
End B is connect with the anode of the reserve battery V2；The common end 3 of the electric controller KZ1 is connect with the output end vo ut1.
The control pole of the one-way SCR Q2 anode through first resistor R1 and switch S1 Yu the main battery V1 successively
Connection；The minus earth of the one-way SCR Q2.
On the one hand one end of the potentiometer R2 is connect with the first resistor R1, one end of the potentiometer R2 also with institute
State the control pole connection of one-way SCR Q2, the other end ground connection of the potentiometer R2.
Standby usage battery powered provided in this embodiment automatically switches output circuit, by setting relay KZ1 and unidirectionally
Silicon-controlled Q2 realizes the switching of standby usage battery powered；The operation principle of one-way SCR Q2 is as follows：Meet following two simultaneously
When part, 1. one-way SCR Q2 conductings add forward voltage between the anode and the cathode, 2. add positive triggering electricity in control pole simultaneously
Pressure.Two above condition must be provided simultaneously with, and one-way SCR just can be in the conduction state.In addition, one-way SCR is once led
After logical, even if reducing control pole tension or removing control pole tension, one-way SCR is still connected.Make the one-way SCR of conducting
The condition of shutdown is as follows：1. reducing anode current to certain value, anode supply is 2. cut off.
In this implementation, makes full use of one-way SCR Q2 gate trigger voltages and maintain electric current.When main battery V1 voltages are higher than
Voltage is set, one-way SCR Q2 is connected, after conducting only when main battery V1 voltages are as low as certain value or output protection, unidirectionally
Silicon-controlled Q2 is just disconnected, and once disconnected, only main battery voltage is higher than conducting voltage just now, silicon-controlled to be connected again, conducting
Voltage is arranged by first resistor R1 with potentiometer R2, and usually battery recovery is for a long time or after recharging at this time.Thus may be used
Prevent main battery relay caused by voltage fluctuation from toggling power supply.
The operation principle that standby usage battery powered provided in this embodiment automatically switches output circuit is as follows：When electric equipment not
In use, switch S1, which is disconnected, saves battery loss；When electric equipment needs work, closure switch S1, main battery anode open up pass,
Second resistance R3 powers to relay KZ1；One-way SCR Q2 is supplied to by first resistor R1 and potentiometer R2 after the power is turned on
The voltage of pole one, when voltage is more than one-way SCR Q2 gate pole conducting voltages, one-way SCR Q2 is connected, and relay KZ1 is normal
Disconnection, normally opened closure are closed, main battery V1 anodes are powered to output end vo ut11 anodes.With the output of main battery, main battery electricity
When pressure drop is low or output protection, when one-way SCR Q2 is less than controlled silicon conducting by electric current and maintains electric current, one-way SCR Q2
It disconnects, the normally opened disconnections of relay KZ1, normally closed closure, is at this moment switched to reserve battery V2 and powers to output end vo ut11.
After main battery restores enough voltage, restores voltage and setting is adjusted by first resistor R1 and potentiometer R2, unidirectionally may be used
Silicon Q2 conductings are controlled, main battery power supply is switched back into.
After electric equipment use, switch S1 is disconnected.
Active and standby battery powered provided in this embodiment automatically switches output circuit, by the way that conducting voltage setup module is arranged
The conducting voltage of one-way SCR can be arranged since potentiometer is adjustable in first resistor and potentiometer, control leading for one-way SCR
Logical and shutdown prevents from being powered down source boost in voltage and causes main battery and reserve battery frequent switching back and forth；Pass through one-way SCR
Conducting and shutdown control conducting and the closure of relay, to realize the automatic switchover of main battery and reserve battery.
Although the utility model is disclosed above with preferred embodiment, it is not limited to the model of the utility model implementation
It encloses.Any those skilled in the art improve in the invention scope for not departing from the utility model when can make a little,
I.e. every same improvement done according to the utility model, should be the scope of the utility model and is covered.
Claims (7)
1. a kind of standby usage battery powered automatically switches output circuit, which is characterized in that including：Battery input module, switching mould
Block and output end, the battery input module are connect through the handover module with the output end；Wherein, the battery inputs mould
Block includes main battery and reserve battery, and the handover module includes electric controller and unidirectional controllable devices；
The anode of the main battery is connect with the first control terminal of the normally open end of the electric controller and the electric controller respectively；
Second control terminal of the electric controller is connect with the anode of the unidirectional controllable devices；The normal-closed end of the electric controller and institute
State the anode connection of reserve battery；The common end of the electric controller is connect with the output end；
The control pole of the unidirectional controllable devices is connect with the anode of the main battery；The cathode of the unidirectional controllable devices connects
Ground.
2. standby usage battery powered as described in claim 1 automatically switches output circuit, which is characterized in that the electric controller
For relay, the normally open end of the relay is connect with the anode of the main battery, the normal-closed end of the relay with it is described standby
With the anode connection of battery, the common end of the relay connect with the output end, the first control terminal of the relay and
The anode connection of the main battery；Second control terminal of the relay is connect with the anode of the unidirectional controllable devices.
3. standby usage battery powered as described in claim 1 automatically switches output circuit, which is characterized in that described unidirectional controllable
Device is one-way SCR, and the control pole of the one-way SCR is connect with the anode of the main battery, the one-way SCR
Anode connect with the second control terminal of the electric controller, the minus earth of the one-way SCR.
4. standby usage battery powered as described in claim 1 automatically switches output circuit, which is characterized in that the active and standby electricity consumption
It further includes conducting voltage setup module that output circuit is automatically switched in pond power supply；
The conducting voltage setup module includes first resistor and adjustable voltage unit；
The anode of one end of the first resistor and the main battery connect, the other end one side of the first resistor with it is described
On the other hand the control pole connection of unidirectional controllable devices, the other end of the first resistor are connect with the adjustable voltage unit；
On the one hand one end of the adjustable voltage unit is connect with the first resistor, one end of the adjustable voltage unit is another
Aspect is connect with the control pole of the unidirectional controllable devices, the other end ground connection of the adjustable voltage unit.
5. standby usage battery powered as described in claim 1 automatically switches output circuit, which is characterized in that the active and standby electricity consumption
It further includes circuit protection unit that output circuit is automatically switched in pond power supply；The circuit protection unit includes second resistance；Described
One end of two resistance is connect with the anode of the main battery；First control of the other end of the second resistance and the electric controller
End connection processed.
6. standby usage battery powered as described in claim 1 automatically switches output circuit, which is characterized in that the active and standby electricity consumption
It further includes switch that output circuit is automatically switched in pond power supply；One end of the switch is connect with the anode of the main battery；It is described to open
The other end of pass is connect with the normally open end of the electric controller.
7. standby usage battery powered as claimed in claim 4 automatically switches output circuit, which is characterized in that the adjustable voltage
Unit includes potentiometer；On the one hand one end of the potentiometer is connect with the first resistor；One end of the potentiometer is another
Aspect is connect with the control pole of the unidirectional controllable devices；The other end of the potentiometer is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820689798.9U CN208094277U (en) | 2018-05-09 | 2018-05-09 | A kind of standby usage battery powered automatic switchover output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820689798.9U CN208094277U (en) | 2018-05-09 | 2018-05-09 | A kind of standby usage battery powered automatic switchover output circuit |
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| Publication Number | Publication Date |
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| CN208094277U true CN208094277U (en) | 2018-11-13 |
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| CN201820689798.9U Active CN208094277U (en) | 2018-05-09 | 2018-05-09 | A kind of standby usage battery powered automatic switchover output circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418300A (en) * | 2018-05-09 | 2018-08-17 | 广州大学 | A kind of standby usage battery powered automatic switchover output circuit |
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2018
- 2018-05-09 CN CN201820689798.9U patent/CN208094277U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418300A (en) * | 2018-05-09 | 2018-08-17 | 广州大学 | A kind of standby usage battery powered automatic switchover output circuit |
| CN108418300B (en) * | 2018-05-09 | 2023-08-08 | 广州大学 | Main and standby battery power supply automatic switching output circuit |
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