CN204012849U - A kind of portable charger that can automatic decision electric power polarity - Google Patents
A kind of portable charger that can automatic decision electric power polarity Download PDFInfo
- Publication number
- CN204012849U CN204012849U CN201420438839.9U CN201420438839U CN204012849U CN 204012849 U CN204012849 U CN 204012849U CN 201420438839 U CN201420438839 U CN 201420438839U CN 204012849 U CN204012849 U CN 204012849U
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- polarity
- portable charger
- protection relay
- module
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- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of portable charger that can automatic decision electric power polarity, it comprises portable charger (1), portable charger output switch (2), protection relay action connection point (3), it is characterized in that protection relay action connection point (3) connects polarity detection and sentences device (4), polarity detects sentences the startup module (4-1) that device (4) comprises protection relay, polarity detects judge module (4-2), light, aural warning module (4-3), the startup module (4-1) of protection relay, polarity detects judge module (4-2), light, aural warning module (4-3) respectively with transformer station direct current system power source bus (5), protection relay action connection point (3) is connected, the utility model and alarm, guarantee the person and device security, wiring is simple, workload is little, safe and reliable.
Description
Technical field:
The utility model relates to a kind of portable charger that can automatic decision electric power polarity, belongs to electric power system substation equipment maintenance and repair technical field.
Background technology:
Portable charger is one of transformer station direct current system maintenance common equipment, when transformer station direct current system charging device is changed or broken down, need to use portable charger to substitute the charging device of direct current system.But because transformer station direct current system long operational time and environment differ, some signs of direct current system are smudgy, may there is the situation of reverse polarity connection while being connected with transformer station direct current system power source bus in portable charger, will cause direct-current short circuit, causes serious accident.And the portable charger using at present does not all possess the function of carrying out polarity judgement with transformer station direct current system power source bus, the safe operation of staff's person and electrical network is formed to great threat.
Utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and a kind of and alarm is provided, and guarantees the person and device security, and wiring is simple, and workload is little, safe and reliable portable charger that can automatic decision electric power polarity.
Order of the present utility model can reach by following measure: a kind of portable charger that can automatic decision electric power polarity, it comprises portable charger, portable charger connects portable charger output switch, portable charger output switch connects protection relay action connection point, it is characterized in that protection relay action connection point connects polarity detection and sentences device, polarity detects sentences the startup module that device comprises protection relay, the startup module of protection relay connects polarity and detects judge module, polarity detects judge module and connects light, aural warning module, the startup module of protection relay, polarity detects judge module, light, aural warning module respectively with transformer station direct current system power source bus, protection relay action connection point is connected.
The utility model can produce following good effect compared with the prior art: the utility model installs polarity detection judgment means additional at the outlet side of portable charger, and the output line of portable charger is connected with transformer station direct current system power source bus.When portable charger is contrary with transformer station direct current system power source bus polarity, polarity detection is sentenced device and is automatically detected, and startup light, aural warning are informed staff, reminds staff to correct; Cut off the output loop of portable charger simultaneously, guarantee not occur the situation with transformer station direct current system power source bus reverse polarity connection, thereby guarantee the person and device security.And this device wiring is simple, and workload is little, safe and reliable.
Accompanying drawing explanation:
Fig. 1 is structured flowchart of the present utility model.
Embodiment: preferred forms of the present utility model is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of portable charger (referring to Fig. 1) that can automatic decision electric power polarity, it comprises portable charger 1, portable charger 1 connects portable charger output switch 2, portable charger output switch 2 connects protection relay action connection point 3, the polarity that connects protection relay action connection point 3 detects sentences device 4, polarity detects sentences the startup module 4-1 that device 4 comprises protection relay, the startup module 4-1 of protection relay connects polarity and detects judge module 4-2, polarity detects judge module 4-2 and connects light, aural warning module 4-3, the startup module 4-1 of protection relay, polarity detects judge module 4-2, light, aural warning module 4-3 respectively with transformer station direct current system power source bus 5, protection relay action connection point 3 is connected.
Behind position at the output switch 2 of confirming portable charger in disconnecting, portable charger 1 detects judgment means 4 access transformer station direct current system power source buss 5 through output switch 2, protection relay action connection point 3, the polarity of portable charger.It is charged that polarity detects judgment means 4, polarity wherein detects judge module 4-2 and starts to carry out polarity judgement, if polarity is contrary, polarity detects judge module 4-2 and starts light, aural warning module 4-3, send light, audible warning, notify staff to note, the startup module 4-1 of while starting protection relay, startup module 4-1 starting protection actuating of relay contact 3 by protection relay, cut off the output loop of portable charger, guarantee light, while there is misoperation and close the output switch 2 of portable charger in aural warning module 4-3 fault or staff, still portable charger 1 out-put supply can not be connected with transformer station direct current system power source bus 5, thereby having guaranteed that portable charger and transformer station direct current system power source bus are connected to whenever all can there is not electric power polarity and connect anti-situation.
Claims (1)
- One kind can automatic decision electric power polarity portable charger, it comprises portable charger (1), portable charger (1) connects portable charger output switch (2), portable charger output switch (2) connects protection relay action connection point (3), it is characterized in that protection relay action connection point (3) connects polarity detection and sentences device (4), polarity detects sentences the startup module (4-1) that device (4) comprises protection relay, the startup module (4-1) of protection relay connects polarity and detects judge module (4-2), polarity detects judge module (4-2) and connects light, aural warning module (4-3), the startup module (4-1) of protection relay, polarity detects judge module (4-2), light, aural warning module (4-3) respectively with transformer station direct current system power source bus (5), protection relay action connection point (3) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438839.9U CN204012849U (en) | 2014-08-06 | 2014-08-06 | A kind of portable charger that can automatic decision electric power polarity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438839.9U CN204012849U (en) | 2014-08-06 | 2014-08-06 | A kind of portable charger that can automatic decision electric power polarity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012849U true CN204012849U (en) | 2014-12-10 |
Family
ID=52052791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420438839.9U Expired - Fee Related CN204012849U (en) | 2014-08-06 | 2014-08-06 | A kind of portable charger that can automatic decision electric power polarity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201728A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Portable charger capable of automatically judging polarity of power supply |
| TWI641194B (en) * | 2017-10-11 | 2018-11-11 | 致茂電子股份有限公司 | Power device with wiring safety function |
-
2014
- 2014-08-06 CN CN201420438839.9U patent/CN204012849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201728A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Portable charger capable of automatically judging polarity of power supply |
| TWI641194B (en) * | 2017-10-11 | 2018-11-11 | 致茂電子股份有限公司 | Power device with wiring safety function |
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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 |
Granted publication date: 20141210 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |