CN204858648U - Avoid portable power source of floating charge - Google Patents
Avoid portable power source of floating charge Download PDFInfo
- Publication number
- CN204858648U CN204858648U CN201520563901.1U CN201520563901U CN204858648U CN 204858648 U CN204858648 U CN 204858648U CN 201520563901 U CN201520563901 U CN 201520563901U CN 204858648 U CN204858648 U CN 204858648U
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- CN
- China
- Prior art keywords
- power source
- portable power
- transformer
- relay
- input
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- 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.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an avoid portable power source of floating charge, the portable power source surface is provided with quantity indicating lamp and button, still be provided with the power output interface in the portable power source, still include the transformer, transformer and portable power source pass through the articulate, the transformer is including the vary voltage circuit, the input and the connector assembly of vary voltage circuit, the plug sets up on the transformer, the positive output end of vary voltage circuit is connected with three way relay LS1's first common port and second common port, the cathode output of vary voltage circuit is connected with three way relay LS1's third common port and three way relay LS1's an input, three way relay LS1's another input and the first output negative pole of normally opening end and opto -coupler U1 are connected, the utility model discloses a portable power source is full of and can breaks off behind the electricity being connected of transformer and portable power source, has avoided portable power source's floating charge problem, increase of service life.
Description
Technical field
The utility model relates to field of power supplies, particularly relates to a kind of portable power source avoiding floating charge.
Background technology
Existing portable power source, when charging, needs a transformer by the voltage of voltage transition needed for portable power source, together with then being received with portable power source joint by transformer joint, namely can charge to portable power source.Existing have following problem: after portable power source is full of electricity, and transformer still keeps the connection with portable power source, can cause the problem of floating charge, and when meeting thunderbolt, just can by transformer damage portable power source.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of portable power source avoiding floating charge, solves existing portable power source transformer and portable power source after electricity is full of and also keeps being connected thus the problem of the floating charge produced.
The utility model is achieved in that a kind of portable power source avoiding floating charge, portable power source surface is provided with battery capacity indication lamp and button, also power output interface is provided with in portable power source, also comprise transformer, transformer is connected by joint with portable power source, transformer includes transforming circuit, the input of transforming circuit is connected with plug, plug is arranged on the transformer, the cathode output end of transforming circuit is connected with first common port of No. three relay LS1 and the second common port, the cathode output end of transforming circuit is connected with an input of the 3rd common port of No. three relay LS1 and No. three relay LS1, another input of No. three relay LS1 is connected with the output negative pole of the first Chang Kaiduan and optocoupler U1, the output cathode of optocoupler U1 is connected with first normal-closed end of No. three relay LS1, second normal-closed end of No. three relay LS1 is connected with the first end of transformer joint, 3rd normal-closed end of No. three relay LS1 is connected with the second end of transformer joint, 3rd end of transformer joint is connected with one end of resistance R1, the other end of resistance R1 is connected with the input positive pole of one end of resistance R2 and optocoupler U1, the input negative pole of optocoupler U1 is connected with the other end of resistance R2 and transformer joint second end, portable power source comprises charging circuit, the input of charging circuit and the first end of portable power source joint, second end connects, the output of charging circuit is connected with storage battery, the positive pole of storage battery and the three-terminal link of charging device joint.
The utility model tool has the following advantages: the connection that can disconnect transformer and portable power source after portable power source is full of electricity, avoids the floating charge problem of portable power source, increases the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit diagram of the present utility model.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of portable power source avoiding floating charge, portable power source surface is provided with battery capacity indication lamp 1 and button 2, also power output interface is provided with in portable power source, power output interface is used for out-put supply, battery capacity indication lamp is used to indicate power supply dump energy, and whether button exports for controlling power output interface.Also comprise transformer 3, transformer is connected by joint with portable power source, transformer includes transforming circuit, the input of transforming circuit is connected with plug 4, plug is arranged on the transformer, the cathode output end of transforming circuit is connected with first common port of No. three relay LS1 and the second common port, the cathode output end of transforming circuit is connected with an input of the 3rd common port of No. three relay LS1 and No. three relay LS1, another input of No. three relay LS1 is connected with the output negative pole of the first Chang Kaiduan and optocoupler U1, the output cathode of optocoupler U1 is connected with first normal-closed end of No. three relay LS1, second normal-closed end of No. three relay LS1 is connected with the first end of transformer joint, 3rd normal-closed end of No. three relay LS1 is connected with the second end of transformer joint, 3rd end of transformer joint is connected with one end of resistance R1, the other end of resistance R1 is connected with the input positive pole of one end of resistance R2 and optocoupler U1, the input negative pole of optocoupler U1 is connected with the other end of resistance R2 and transformer joint second end, portable power source comprises charging circuit, the input of charging circuit and the first end of portable power source joint, second end connects, the output of charging circuit is connected with storage battery, the positive pole of storage battery and the three-terminal link of charging device joint.Storage battery is used for powering to portable power source.
Wherein, transforming circuit is used for changing the alternating current of plug into direct current, as being transformed into the direct current of 5V.Charging circuit is for receiving the electricity of portable power source joint and accumulators BT1 charges, and charging circuit is generally size and the voltage of charging current for controlling storage battery.The normal-closed end of relay does not have to be connected (closing) during electricity at relay input with common port, and the Chang Kaiduan of relay and common port do not have to be disconnect (open circuit) during electricity at relay input.When relay input obtains electric, normal-closed end and common port disconnect, and Chang Kaiduan is connected with common port.
Below the course of work of the present utility model is described in detail: portable power source is full of electricity, then the voltage of storage battery raises, this voltage is after the 3rd end of joint, and this voltage is after resistance R1 and R2 dividing potential drop, and the voltage produced at optocoupler place is greater than optocoupler conducting voltage.Optocoupler is luminous, and the conducting of optocoupler output, then the voltage of the first normal-closed end arrives another input of No. three relays after optocoupler output, then No. three relays obtain electric.No. three relays obtain electric after, first Chang Kaiduan obtains voltage, this voltage is input to another input of No. three relays, what maintain No. three relays obtains electricity condition, under No. three relays obtain electricity condition, second normal-closed end and the 3rd normal-closed end, all disconnect with transforming circuit, make transformer joint without any voltage, simultaneously the buffer action of optocoupler make transformer joint completely and transforming circuit disconnect, as long as optocoupler is luminous, just equal portable power source and transformer disconnects completely, the situation of floating charge now can not be caused to occur, and owing to being disconnect completely, the situation of floating charge can not be caused, thus avoid floating charge.Even if transformer is struck by lightning suddenly simultaneously, current thunderbolt also can not have influence on portable power source, ensure that the safety of portable power source.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. avoid the portable power source of floating charge for one kind, it is characterized in that: portable power source surface is provided with battery capacity indication lamp and button, also power output interface is provided with in portable power source, also comprise transformer, transformer is connected by joint with portable power source, transformer includes transforming circuit, the input of transforming circuit is connected with plug, plug is arranged on the transformer, the cathode output end of transforming circuit is connected with first common port of No. three relay LS1 and the second common port, the cathode output end of transforming circuit is connected with an input of the 3rd common port of No. three relay LS1 and No. three relay LS1, another input of No. three relay LS1 is connected with the output negative pole of the first Chang Kaiduan and optocoupler U1, the output cathode of optocoupler U1 is connected with first normal-closed end of No. three relay LS1, second normal-closed end of No. three relay LS1 is connected with the first end of transformer joint, 3rd normal-closed end of No. three relay LS1 is connected with the second end of transformer joint, 3rd end of transformer joint is connected with one end of resistance R1, the other end of resistance R1 is connected with the input positive pole of one end of resistance R2 and optocoupler U1, the input negative pole of optocoupler U1 is connected with the other end of resistance R2 and transformer joint second end, portable power source comprises charging circuit, the input of charging circuit and the first end of portable power source joint, second end connects, the output of charging circuit is connected with storage battery, the positive pole of storage battery and the three-terminal link of charging device joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563901.1U CN204858648U (en) | 2015-07-31 | 2015-07-31 | Avoid portable power source of floating charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520563901.1U CN204858648U (en) | 2015-07-31 | 2015-07-31 | Avoid portable power source of floating charge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204858648U true CN204858648U (en) | 2015-12-09 |
Family
ID=54749162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520563901.1U Expired - Fee Related CN204858648U (en) | 2015-07-31 | 2015-07-31 | Avoid portable power source of floating charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204858648U (en) |
-
2015
- 2015-07-31 CN CN201520563901.1U patent/CN204858648U/en not_active Expired - Fee Related
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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: 20151209 Termination date: 20160731 |