CN205489595U - Switching circuit - Google Patents
Switching circuit Download PDFInfo
- Publication number
- CN205489595U CN205489595U CN201620021239.1U CN201620021239U CN205489595U CN 205489595 U CN205489595 U CN 205489595U CN 201620021239 U CN201620021239 U CN 201620021239U CN 205489595 U CN205489595 U CN 205489595U
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- Prior art keywords
- resistance
- circuit
- switch
- type triode
- lithium battery
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Abstract
The utility model provides a switching circuit, sets up between the lithium cell and solar cell panel of the integrative lamp of solar energy LED for in the integrative lamp of disconnection solar energy LED the lithium cell charging loops or give lithium batteries, including open circuit and charging circuit, wherein, open circuit is used for connecting between solar cell panel and lithium cell to at solar cell panel voltage low, the controller control disconnection solar cell panel that the lithium cell was crossed when putting by the integrative lamp of solar energy LED is connected with the electricity between the lithium cell, charging circuit is used for connecting between solar cell panel and lithium cell to get into the degree of depth at the lithium cell and cross when putting, charge to the lithium cell. Above -mentioned switching circuit got into at the lithium cell and broke off charging of lithium cell when putting, crossed in the lithium cell entering degree of depth to charge normal to the lithium cell when putting to controlled the needs that charge of lithium cell effectively, furtherly has protected the lithium cell.
Description
Technical field
This utility model relates to the lithium cell charging field of solar LED integrated lamp, particularly relates to one and opens
Close circuit.
Background technology
Along with increasing to energy demand of people, people will have energy-saving and environmental protection, the advantage such as efficiently
LED and aboundresources, solar energy without transport and environmentally safe combine makes solar energy
LED integrated lamp, and solar LED integrated lamp used the most widely.
The most conventional solar LED integrated lamp is generally built-in with lithium battery, and is given by solar panel
Lithium cell charging.When solar LED integrated lamp is in transport and storage process, in order to avoid lithium battery is lost,
Typically require and disconnect current supply circuit with external switch.And the built-in lithium battery of solar LED integrated lamp is just needing
When often charging, generally control current supply circuit by built-in controller and connect or connect power supply by external switch
Loop, charges normal built-in lithium battery.
This is owing to solar LED integrated lamp is under the low light level that the most overcast and rainy or various environmental factorss cause,
Built-in lithium battery can enter the degree of depth and cross and put.Cross when the built-in lithium battery entrance degree of depth of solar LED integrated lamp and put
Time, built-in controller cannot normally work because of brownout, connects so generally also needing to arrange external switch
Logical current supply circuit.
At present, there is waterproof bad problem in conventional common external switch, and special water proof switch becomes
This is too high.
Utility model content
Based on this, it is necessary to need to control current supply circuit by external switch for current LED integrated lamp and break
Open the problem recovered with current supply circuit, it is provided that a kind of on-off circuit.
A kind of on-off circuit, is arranged between lithium battery and the solar panel of solar LED integrated lamp,
For disconnecting the charge circuit of lithium battery in solar LED integrated lamp or to lithium cell charging, it is characterised in that
Including disconnecting circuit and charging circuit；Wherein, described disconnecting circuit is used for being connected to described solar panel
And between described lithium battery, and described solar cell panel voltages too low cause described lithium battery cross put time by
The controller of described solar LED integrated lamp controls to disconnect between described solar panel and described lithium battery
Electrical connection；
Described charging circuit is used for being connected between described solar panel and described lithium battery, and described
The lithium battery entrance degree of depth is crossed when putting, and is charged described lithium battery.
Wherein in an embodiment, described disconnecting circuit includes the first switch element and the first on-off control list
Unit；Wherein, the control end of described first switch element electrically connects with described first switch control unit, described
The outfan of the first switch element is connected with the positive pole of described lithium battery；The input of described first switch element
Electrically connect with described controller, and the positive electrical of described first switch control unit and described solar panel
Connect.
Wherein in an embodiment, described first switch element includes the first metal-oxide-semiconductor.
Wherein in an embodiment, described first switch control unit includes the first flow-restriction, the second limit
Stream unit and the first driver element；Described first flow-restriction be connected to the positive pole of described solar panel with
Between the control end of described first driver element, described second flow-restriction is connected to described first driver element
Input and the control end of described first switch element between, the output head grounding of described first driver element.
Wherein in an embodiment, described first driver element includes audion Q1；Described first current limliting list
Unit includes resistance R1 and resistance R2；Described second flow-restriction includes resistance R3, resistance R4 and resistance R5；
The base stage of described audion Q1 is connected with described second flow-restriction, the colelctor electrode of described audion Q1
It is connected with described first flow-restriction, the grounded emitter of described audion Q1；Described resistance R1 and described
Resistance R2 is connected between control end and the outfan of described first switch element；One end of described resistance R3
Electrically connect with described controller, the other end of described resistance R3 respectively with described resistance R4 and described resistance R5
One end and described audion Q1 base stage connect；The other end of described resistance R4 and described solaode
The positive pole of plate connects；The other end ground connection of described resistance R5.
Wherein in an embodiment, described disconnecting circuit also includes the first voltage regulation unit, described first voltage stabilizing
Unit is connected with the input of described first switch element and the power input port of described controller.
Wherein in an embodiment, it is single that described charging circuit includes that second switch unit and second switch control
Unit；Described second switch control unit is respectively at the control end of described second switch unit, described solar-electricity
The positive pole of pond plate and the positive electrical of described lithium battery connect.
Wherein in an embodiment, described second switch control unit includes: PNP type triode Q2, NPN
Type audion Q3, NPN type triode Q4, PNP type triode Q5, resistance R6, resistance R7, resistance
R8, resistance R9, resistance R10 and resistance R11；One end of described resistance R6 and the positive pole of described lithium battery
Connect；The other end of described resistance R6 is connected with the base stage of described PNP type triode Q2, described PNP
The emitter stage of type audion Q2 is connected with one end of described resistance R7, the collection of described PNP type triode Q2
Electrode is connected with the base stage of described NPN type triode Q3；The other end of described resistance R7 and described resistance
One end of R8 and the outfan of described second switch unit connect；The other end of described resistance R8 and described NPN
The base stage of type audion Q4 and the colelctor electrode of described NPN type triode Q3 connect；Described NPN type three pole
The grounded emitter of pipe Q3, the base stage of described NPN type triode Q3 and described resistance R9 and described resistance
One end of R10 connects, and the other end of described resistance R9 electrically connects with described controller, described resistance R10's
Other end ground connection；The colelctor electrode of described NPN type triode Q4 connects with the outfan of described second switch unit
Connecing, the emitter stage of described NPN type triode Q4 connects with one end of described resistance R11 and described resistance R12
Connect；The other end of described resistance R11 is connected with the control end of described second switch unit, described resistance R12
The other end be connected with the emitter stage of described PNP type triode Q5；The collection of described PNP type triode Q5
Electrode ground connection, the base stage of described PNP type triode Q5 is connected with the base stage of described NPN type triode Q4；
The input of described second switch unit is connected with the positive pole of described solar panel.
Wherein in an embodiment, described second switch unit includes the second metal-oxide-semiconductor.
Wherein in an embodiment, described charging circuit also includes the second voltage regulation unit；Described second voltage stabilizing
Unit includes the 3rd switch element and the 3rd switch control unit；Described 3rd switch element includes the 3rd MOS
Pipe；Described 3rd switch control unit is used for driving described 3rd metal-oxide-semiconductor.
Said switching circuit, by setting between the lithium battery of solar LED integrated lamp and solar panel
Put disconnecting circuit and charging circuit, and disconnecting circuit be used for being connected between solar panel and lithium battery,
And control to disconnect solaode by the controller of solar LED integrated lamp when needing to prevent lithium battery to be lost
Electrical connection between plate and lithium battery；Charging circuit is used for being connected between solar panel and lithium battery,
And when the lithium battery entrance degree of depth is crossed and put, lithium battery is charged.Namely said switching circuit is at lithium battery
Entering and controlled to disconnect lithium cell charging by the controller of solar LED integrated lamp when putting, protection lithium battery is subject to
Damaging, when the lithium battery entrance degree of depth is crossed and put, charging circuit charges normal to lithium battery, thus effectively
Control the charging needs of lithium battery, protect lithium battery further.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic block diagram of solar LED integrated lamp in an embodiment；
Fig. 2 is the disconnecting circuit circuit theory diagrams in an embodiment；
Fig. 3 is the charging circuit schematic diagram in an embodiment.
Detailed description of the invention
Solar LED integrated lamp generally uses built-in lithium battery to power to LED, and generally at solar energy
It is provided with external switch in LED to control the charge circuit of lithium battery according to specific needs and break on or off
Disconnected.The most conventional common external switch water resistance is bad, and special water proof switch high cost, for
This, this utility model provides a kind of solar LED integrated lamp with on-off circuit.Specifically, such as figure
Shown in 1, it it is the internal structure schematic block diagram of solar LED integrated lamp in an embodiment.
As shown in Figure 1, solar LED integrated lamp of the present utility model be built-in with lithium battery 11, controller 13,
Solar panel 14 and on-off circuit 15.Wherein, on-off circuit 15 is arranged at lithium battery 11 and solar energy
Between cell panel 14, for disconnecting the charge circuit of lithium battery 11 in solar LED integrated lamp or to lithium electricity
Charge in pond 11.
Specifically, in the present embodiment, on-off circuit 15 includes disconnecting circuit 150 and charging circuit 151.
Disconnecting circuit 150 is used for being connected between solar panel 14 and lithium battery 11, and at solar energy
The running voltage of cell panel 14 is too low causes lithium battery 11 to be crossed when putting by the controller of solar LED integrated lamp
13 control to disconnect the electrical connection between solar panel 14 and lithium battery 11.
Charging circuit 151 is used for being connected between solar panel 14 and lithium battery 11, and at lithium battery
The 11 entrance degree of depth are crossed when putting, and are charged lithium battery 11.
Further, as in figure 2 it is shown, be the disconnecting circuit circuit theory diagrams in an embodiment.Can by Fig. 2
Knowing, disconnecting circuit 150 includes the first switch element 151 and the first switch control unit 152.Wherein, first
Control end and first switch control unit 152 of switch element 151 electrically connect, the first switch element 151
Outfan is connected with the positive pole of lithium battery 11；The input of the first switch element 151 is electrically connected with controller 13
Connect, and the first switch control unit 152 is connected with the positive electrical of solar panel 14.
Further, in the preferred version of the present embodiment, the first switch element 151 includes the first metal-oxide-semiconductor.
First switch control unit 152 includes that first flow-restriction the 153, second flow-restriction 154 and first drives list
Unit 155；First flow-restriction 153 is connected to positive pole and first driver element 155 of solar panel 14
Control end between, the second flow-restriction 154 is connected to the input and first of the first driver element 155 and opens
Close between the control end of unit 151, the output head grounding of the first driver element 155.
Further, the first driver element 155 includes audion Q1；First flow-restriction 153 includes resistance
R1 and resistance R2；Second flow-restriction 154 includes resistance R3, resistance R4 and resistance R5.And audion
The base stage of Q1 is connected with the second flow-restriction 154, the colelctor electrode of audion Q1 and the first flow-restriction 153
Connect, the grounded emitter of audion Q1.Resistance R1 and resistance R2 is connected on the first switch element 151
Control end and outfan between, one end of resistance R3 electrically connects with controller 13, the other end of resistance R3
Base stage with resistance R4 and one end of resistance R5 and audion Q1 is connected respectively.The other end of resistance R4 with
The positive pole of solar panel 14 connects, the other end ground connection of resistance R5.
In the preferred scheme of the present embodiment, disconnecting circuit 150 also includes the first voltage regulation unit 155, and first
Voltage regulation unit 155 is connected with the input of the first switch element 151 and the power input port of controller 13.
Specifically, as shown in Figure 2, the first voltage regulation unit 155 includes: electric capacity C1, Zener diode D1,
Electric capacity C2 and voltage stabilizing chip U1.
Wherein, the positive pole of electric capacity C1 and the input of the first switch element 151 and Zener diode D1 are just
Pole connect, the negative pole of electric capacity C1 is connected with the negative pole of Zener diode D1, and Zener diode D1 bear
Pole ground connection, the positive pole of Zener diode D1 is connected with the input of voltage stabilizing chip U1, voltage stabilizing chip U1's
Outfan is connected with the power input port of controller 13, and the positive pole of electric capacity C2 is defeated with the power supply of controller 13
Inbound port connects, the minus earth of electric capacity C2.
From the above-mentioned physical circuit schematic diagram of disconnecting circuit 150, at controller 13 output low level signal
And the voltage of solar panel 14 is when becoming low level, the base stage of audion Q1 is low level, so three
Pole pipe Q1 ends, and audion Q1 cut-off then causes the first switch element 151 (the first metal-oxide-semiconductor) to disconnect,
Now no signal current flows into the positive pole of lithium battery 11, namely this disconnecting circuit 150 exports at controller 13
When the running voltage of low level signal and solar panel 14 is low level, no current flows into lithium battery 11, also
I.e. disconnecting the charging of lithium battery 11, protection lithium battery 11 is damaged.
Further, as it is shown on figure 3, be the charging circuit of an embodiment.From the figure 3, it may be seen that the present embodiment
In, charging circuit 151 includes: second switch unit 156 and second switch control unit 157.
Wherein, second switch control unit 157 respectively with control end, the solar energy of second switch unit 156
The positive pole of cell panel 14 and the positive electrical of lithium battery 11 connect.
Specifically, second switch control unit 157 includes: PNP type triode Q2, NPN type triode
Q3, NPN type triode Q4, PNP type triode Q5, resistance R6, resistance R7, resistance R8, resistance
R9, resistance R10 and resistance R11.One end of resistance R6 is connected with the positive pole of lithium battery 11, resistance R6
The other end be connected with the base stage of PNP type triode Q2, the emitter stage of PNP type triode Q2 and resistance
One end of R7 connects, and the colelctor electrode of PNP type triode Q2 is connected with the base stage of NPN type triode Q3.
The other end of resistance R7 is connected with one end of resistance R8 and the outfan of second switch unit 156, resistance R8
The other end be connected with the colelctor electrode of NPN type triode Q4 base stage and NPN type triode Q3, NPN type
The grounded emitter of audion Q3, the base stage of NPN type triode Q3 and resistance R9 and the one of resistance R10
End connects, and the other end of resistance R9 electrically connects with controller 13, the other end ground connection of resistance R10.NPN
The colelctor electrode of type audion Q4 is connected with the outfan of second switch unit 156, NPN type triode Q4
Emitter stage is connected with one end of resistance R11 and resistance R12.The other end of resistance R11 and second switch unit
The control end of 156 connects, and the other end of resistance R12 is connected with the emitter stage of PNP type triode Q5, PNP
The grounded collector of type audion Q5, the base stage of PNP type triode Q5 and the base of NPN type triode Q4
Pole connects.The input of second switch unit 156 is connected with the positive pole of solar panel.
Further, from the figure 3, it may be seen that second switch unit 156 includes the second metal-oxide-semiconductor.And charging circuit
151 also include the second voltage regulation unit, and wherein, the second voltage regulation unit includes that the 3rd switch element 159 and the 3rd is opened
Close control unit 160.
Specifically, the 3rd switch element 159 is the 3rd metal-oxide-semiconductor in the present embodiment, the 3rd on-off control list
Unit 160 includes driving chip U2A, resistance R13 and resistance R14, one end of driving chip U2A and resistance
One end and the controller 13 of R13 electrically connect, and the other end of resistance R13 is connected with the positive pole of lithium battery 11,
The other end of driving chip U2A is connected with one end of resistance R14, the other end of resistance R14 and the 3rd switch
The control end of unit 159 connects, and the input of the 3rd switch element 159 is defeated with second switch unit 157
Enter end to connect.
From the physical circuit schematic diagram of above-mentioned charging circuit 151, in the present embodiment, solaode
The running voltage of plate 14 turns on higher than the voltage certain value of lithium battery 11, PNP type triode Q2 so that
NPN type triode Q3, NPN type triode Q4 and PNP type triode Q5 are both turned on, thus drive
Two switch elements 157 (the second metal-oxide-semiconductor) turn on, namely electric current is opened by second from solar panel 14
After closing unit 157, enter inflow lithium battery 11 through PNP type triode Q2, lithium battery 11 is entered
Row charging.And when lithium battery 11 enter the degree of depth cross put time or lithium battery 11 internal protection circuitry lost efficacy time,
The running voltage of solar panel 14 can be higher than the voltage certain value of lithium battery 11, and controller 13 is because of electricity
Press through low cannot be properly functioning, namely charging circuit 151 solves lithium battery 11 and enters the degree of depth and cross when putting or lithium
When the internal protection circuitry of battery 11 lost efficacy, controller 13 cannot be properly functioning and cause nothing because of brownout
The problem that method output control signal is charged to lithium battery 11.
By above example, on-off circuit of the present utility model, too low in solar cell panel voltages
And during controller output low level signal, disconnecting circuit disconnects the current supply circuit of lithium battery, it is to avoid solar LED
Integrated lamp, during lengthy warehousing, damages lithium battery.Voltage at solar panel is higher than lithium battery
During pressure certain value, charging circuit turns on, is charged to lithium battery.Namely avoid the lithium battery entrance degree of depth
Crossing when putting, the controller within solar LED integrated lamp cannot be properly functioning and cause cannot because of brownout
To lithium cell charging, make the problem that solar LED integrated lamp thoroughly lost efficacy.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that,
For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to
Making some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model
The protection domain of patent should be as the criterion with claims.
Claims (10)
1. an on-off circuit, is arranged between lithium battery and the solar panel of solar LED integrated lamp,
For disconnecting the charge circuit of lithium battery in solar LED integrated lamp or to lithium cell charging, it is characterised in that
Including disconnecting circuit and charging circuit；Wherein,
Described disconnecting circuit is used for being connected between described solar panel and described lithium battery, and described
Solar cell panel voltages is too low causes described lithium battery to cross when putting, by the control of described solar LED integrated lamp
Device processed controls to disconnect the electrical connection between described solar panel and described lithium battery；
Described charging circuit is used for being connected between described solar panel and described lithium battery, and described
The lithium battery entrance degree of depth is crossed when putting, and is charged described lithium battery.
On-off circuit the most according to claim 1, it is characterised in that described disconnecting circuit includes first
Switch element and the first switch control unit；Wherein, the control end of described first switch element and described first
Switch control unit electrically connects, and the outfan of described first switch element is connected with the positive pole of described lithium battery；
The input of described first switch element electrically connects with described controller, and described first switch control unit with
The positive electrical of described solar panel connects.
On-off circuit the most according to claim 2, it is characterised in that described first switch element includes
First metal-oxide-semiconductor.
On-off circuit the most according to claim 2, it is characterised in that described first switch control unit
Including the first flow-restriction, the second flow-restriction and the first driver element；Described first flow-restriction is connected to
Between positive pole and the control end of described first driver element of described solar panel, described second current limliting list
Unit is connected between the input of described first driver element and the control end of described first switch element, described
The output head grounding of the first driver element.
On-off circuit the most according to claim 4, it is characterised in that described first driver element includes
Audion Q1；Described first flow-restriction includes resistance R1 and resistance R2；Described second flow-restriction includes
Resistance R3, resistance R4 and resistance R5；
The base stage of described audion Q1 is connected with described second flow-restriction, the colelctor electrode of described audion Q1
It is connected with described first flow-restriction, the grounded emitter of described audion Q1；Described resistance R1 and described
Resistance R2 is connected between control end and the outfan of described first switch element；One end of described resistance R3
Electrically connect with described controller, the other end of described resistance R3 respectively with described resistance R4 and described resistance R5
One end and described audion Q1 base stage connect；The other end of described resistance R4 and described solaode
The positive pole of plate connects；The other end ground connection of described resistance R5.
On-off circuit the most according to claim 2, it is characterised in that described disconnecting circuit also includes
One voltage regulation unit, the input of described first voltage regulation unit and described first switch element and described controller
Power input port connects.
On-off circuit the most according to claim 1, it is characterised in that described charging circuit includes second
Switch element and second switch control unit；Described second switch control unit is respectively at described second switch list
The positive electrical controlling end, the positive pole of described solar panel and described lithium battery of unit connects.
On-off circuit the most according to claim 7, it is characterised in that described second switch control unit
Including: PNP type triode Q2, NPN type triode Q3, NPN type triode Q4, positive-negative-positive three pole
Pipe Q5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10 and resistance R11；Described electricity
One end of resistance R6 is connected with the positive pole of described lithium battery；The other end of described resistance R6 and described positive-negative-positive three
The base stage of pole pipe Q2 connects, and the emitter stage of described PNP type triode Q2 connects with one end of described resistance R7
Connecing, the colelctor electrode of described PNP type triode Q2 is connected with the base stage of described NPN type triode Q3；Institute
The outfan of the other end and one end of described resistance R8 and described second switch unit of stating resistance R7 is connected；
The other end of described resistance R8 and the base stage of described NPN type triode Q4 and described NPN type triode Q3
Colelctor electrode connect；The grounded emitter of described NPN type triode Q3, described NPN type triode Q3
Base stage be connected with one end of described resistance R9 and described resistance R10, the other end of described resistance R9 and institute
State controller electrical connection, the other end ground connection of described resistance R10；The current collection of described NPN type triode Q4
Pole is connected with the outfan of described second switch unit, and the emitter stage of described NPN type triode Q4 is with described
One end of resistance R11 and described resistance R12 connects；The other end of described resistance R11 and described second switch
The control end of unit connects, the other end of described resistance R12 and the emitter stage of described PNP type triode Q5
Connect；The grounded collector of described PNP type triode Q5, the base stage of described PNP type triode Q5 with
The base stage of described NPN type triode Q4 connects；The input of described second switch unit and described solar energy
The positive pole of cell panel connects.
On-off circuit the most according to claim 8, it is characterised in that described second switch unit includes
Second metal-oxide-semiconductor.
On-off circuit the most according to claim 8, it is characterised in that described charging circuit also includes
Second voltage regulation unit；Described second voltage regulation unit includes the 3rd switch element and the 3rd switch control unit；Institute
State the 3rd switch element and include the 3rd metal-oxide-semiconductor；Described 3rd switch control unit is used for driving the described 3rd
Metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021239.1U CN205489595U (en) | 2016-01-11 | 2016-01-11 | Switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021239.1U CN205489595U (en) | 2016-01-11 | 2016-01-11 | Switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489595U true CN205489595U (en) | 2016-08-17 |
Family
ID=56666556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021239.1U Expired - Fee Related CN205489595U (en) | 2016-01-11 | 2016-01-11 | Switching circuit |
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| Country | Link |
|---|---|
| CN (1) | CN205489595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301917A (en) * | 2018-10-21 | 2019-02-01 | 沈禹荣 | It is a kind of remote districts use explosion-proof type solar energy photovoltaic panel |
-
2016
- 2016-01-11 CN CN201620021239.1U patent/CN205489595U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301917A (en) * | 2018-10-21 | 2019-02-01 | 沈禹荣 | It is a kind of remote districts use explosion-proof type solar energy photovoltaic panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170111 |