CN102780255A - Charger with polarity conversion function - Google Patents
Charger with polarity conversion function Download PDFInfo
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- CN102780255A CN102780255A CN2012101858557A CN201210185855A CN102780255A CN 102780255 A CN102780255 A CN 102780255A CN 2012101858557 A CN2012101858557 A CN 2012101858557A CN 201210185855 A CN201210185855 A CN 201210185855A CN 102780255 A CN102780255 A CN 102780255A
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- polarity
- output port
- conversion circuit
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Abstract
The invention discloses a charger with polarity conversion function, comprising an alternating-current input end, a power conversion circuit, a detection control unit, a polarity conversion circuit, a charge device and output ports, wherein a mains supply is connected with the power conversion circuit; the power conversion circuit is connected with the polarity conversion circuit; the polarity conversion circuit is connected with the output ports; the output ports are connected with the charge device; the detection control unit is connected with the output ports and the polarity conversion circuit simultaneously; the port II of the power conversion circuit is in two-phase connection with an NC terminal II and an NO terminal II; the port I of the power conversion circuit is in single phase connection with an NO terminal I and an NC terminal I; the COM terminal I of a relay is connected with the output port I; the COM terminal II of the relay is connected with the output port II; and the output ports are connected with the charge device. The polarity conversion circuit is a double-pole double-throw relay. No matter what the polarity of the charge device is, the charger disclosed by the invention can be used for automatically detecting the polarity of the charge device, adjusting the polarities of the output ports to be as same as the polarity of the charge device and normally charging the charge device simultaneously.
Description
Technical field
The present invention relates to a kind of charger, relate in particular to a kind of polar switching charger.
Background technology
Current charging device port polarity is ununified, and the polarity that the charging device that each manufacturer produces by the mode of oneself has polarity identical, that have is opposite.And the charger output port polarity on the market is fixed, and when charger output port polarity is identical with charging device, can charge normal, and when charger output port polarity is opposite with charging device, can not charge normal, even charger and charging device are damaged.
Summary of the invention
No matter how the purpose of this invention is to provide a kind of charging device polarity, charger can detect charging device polarity automatically, and it is identical with charging device to adjust output port polarity simultaneously, the polar switching charger of bio-occlusion charging device charging.
For realizing above-mentioned purpose, the technical scheme that the present invention adopted is:
A kind of polar switching charger; Comprising: ac input end, power-switching circuit, detection control unit, polarity switching, charging device, output port, its characteristics are: civil power is connected to power-switching circuit through ac input end, and power-switching circuit is connecting polarity switching; Polarity switching connects output port; Output port connects charging device, detects control unit and connects output port and polarity switching simultaneously, and power-switching circuit port two is connected with NC end two, NO end two; Power-switching circuit port one is connected with NO end one, NC end one; Relay COM end one is connected with output port one, and relay COM holds two to be connected with output port two, and output port is connected with charging device.
According to described polar switching charger, its characteristics are: said polarity switching is a DPDT relay.
Advantage of the present invention is: no matter the present invention's charging device polarity how, charger can detect charging device polarity automatically, and it is identical with charging device to adjust output port polarity simultaneously, the charging of bio-occlusion charging device.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a partial circuit sketch map of the present invention.
In the accompanying drawing
1, power-switching circuit; 2, ac input end; 3, detect control unit; 4, polarity switching; 5, charging device; 6, output port; 7, the power-switching circuit port one; 8, the power-switching circuit port two; 9, the NO end one; 10, the NC end one; 11, the NO end two; 12, the NC end two; 13, coil-end one; 14, relay; 15, coil-end two; 16, the COM end one; 17, the COM end two; 18, output port one; 19, output port two.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:
A kind of polar switching charger, like Fig. 1, shown in Figure 2, comprising: ac input end 2, power-switching circuit 1, detection control unit 3, polarity switching 4, charging device 5, output port 6; Civil power is connected to power-switching circuit 1 through ac input end 2; Power-switching circuit 1 is connecting polarity switching 4, and polarity switching 4 connects output port 6, and output port 6 connects charging device 5; Detect control unit 3 and connect output port 6 and polarity switching 4 simultaneously; Power-switching circuit port 28 and NC hold 2 12, NO holds 2 11 to be connected, and power-switching circuit port 1 and NO hold 1, NC holds one 10 to be connected, and relay COM holds one 16 to be connected with output port 1; Relay COM holds 2 17 to be connected with output port 2 19, and output port 6 is connected with charging device 5.
Said in the present embodiment polarity switching 4 is a DPDT relay.
Operation principle of the present invention is:
Power-switching circuit port 28 and NC hold 2 12, NO holds 2 11 to be connected; Power-switching circuit port 1 and NO hold 1, NC holds one 10 to be connected, and relay COM holds one 16 to be connected with output port 1, and relay COM holds 2 17 to be connected with output port 2 19; Output port 6 is connected with charging device 5; Power-switching circuit port 28 output polarities are being for just, and power-switching circuit port one 7 output polarities are for negative, when detect output port 1 for just, output port 2 19 is when bearing; Detect control unit 3 and give low level between coil-end 1, the coil-end 2 15; Relay 14 is in release condition, and then relay COM holds one 16 to be connected with power-switching circuit port 28, and relay COM holds one 16 polarity for just; Relay COM holds 2 17 to be connected with power-switching circuit port 1, and relay COM holds 2 17 polarity for negative.Be correct time when detecting output port 1 for negative, output port 2 19; Detect control unit 3 and give high level between coil-end 1, the coil-end 2 15; Relay 14 is in attracting state, and then relay COM holds one 16 to be connected with power-switching circuit port 1, and relay COM holds one 16 polarity for negative; Relay COM holds 2 17 to be connected with power-switching circuit port 28, relay COM hold 2 17 polarity for negative just.So just realized the function that the charger output polarity is consistent with charging device polarity.
Beneficial effect of the present invention: no matter the present invention's charging device polarity how, charger can detect charging device polarity automatically, and it is identical with charging device to adjust output port polarity simultaneously, the charging of bio-occlusion charging device.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and protection range are limited; Under the prerequisite that does not break away from design concept of the present invention; Common engineers and technicians make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention.
Claims (2)
1. polar switching charger; Comprising: ac input end (2), power-switching circuit (1), detection control unit (3), polarity switching (4), charging device (5), output port (6); It is characterized in that: civil power is connected to power-switching circuit (1) through ac input end (2); Power-switching circuit (1) is connecting polarity switching (4), and polarity switching (4) connects output port (6), and output port (6) connects charging device (5); Detect control unit (3) and connect output port (6) and polarity switching (4) simultaneously; Power-switching circuit port two (8) and NC end two (12), NO end two (11) are connected, and power-switching circuit port one (7) is connected with NO end one (9), NC end one (10), and relay COM holds one (16) to be connected with output port one (18); Relay COM end two (17) is connected with output port two (19), and output port (6) is connected with charging device (5).
2. polar switching charger according to claim 1 is characterized in that: said polarity switching (4) is a DPDT relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101858557A CN102780255A (en) | 2012-05-29 | 2012-05-29 | Charger with polarity conversion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101858557A CN102780255A (en) | 2012-05-29 | 2012-05-29 | Charger with polarity conversion function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102780255A true CN102780255A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101858557A Pending CN102780255A (en) | 2012-05-29 | 2012-05-29 | Charger with polarity conversion function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102780255A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852492Y (en) * | 2005-11-22 | 2006-12-27 | 刘志斌 | Automatic butt joint device for charger polarity |
| US20090121686A1 (en) * | 2007-11-12 | 2009-05-14 | Rober Lo | Power saving charger |
| CN201966651U (en) * | 2011-02-23 | 2011-09-07 | 深圳市博驰信电子有限责任公司 | Battery charger control device with automatic recognition function |
| CN202663169U (en) * | 2012-05-29 | 2013-01-09 | 山东润峰电子科技有限公司 | Polarity-conversion charger |
-
2012
- 2012-05-29 CN CN2012101858557A patent/CN102780255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852492Y (en) * | 2005-11-22 | 2006-12-27 | 刘志斌 | Automatic butt joint device for charger polarity |
| US20090121686A1 (en) * | 2007-11-12 | 2009-05-14 | Rober Lo | Power saving charger |
| CN201966651U (en) * | 2011-02-23 | 2011-09-07 | 深圳市博驰信电子有限责任公司 | Battery charger control device with automatic recognition function |
| CN202663169U (en) * | 2012-05-29 | 2013-01-09 | 山东润峰电子科技有限公司 | Polarity-conversion charger |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121114 |
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| RJ01 | Rejection of invention patent application after publication |