CN201766190U - Circuit capable of preventing direct current from arc discharge - Google Patents
Circuit capable of preventing direct current from arc discharge Download PDFInfo
- Publication number
- CN201766190U CN201766190U CN2010202122602U CN201020212260U CN201766190U CN 201766190 U CN201766190 U CN 201766190U CN 2010202122602 U CN2010202122602 U CN 2010202122602U CN 201020212260 U CN201020212260 U CN 201020212260U CN 201766190 U CN201766190 U CN 201766190U
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- Prior art keywords
- contact
- connector
- direct current
- circuit
- arc discharge
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- Expired - Lifetime
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- 238000010891 electric arc Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a circuit capable of preventing direct current from arc discharge, which comprises a connector contactor (1), a main contact (2) and an auxiliary contact (3). An electronic switch (5) is arranged on the connecting circuit between the main contact (2) and the auxiliary contact (3) for controlling the on/off of the connecting circuit. The auxiliary contact (3) is arranged in the position with which the connector contactor (1) will certainly contact before the connector contactor (1) contacts with the main contact (2). The circuit provided by the utility model is convenient for use, and has simple structure, less circuit links and low cost.
Description
Technical field
The utility model relates to a kind of direct current arc discharge circuit that prevents.
Background technology
When two contact charged separation of connector, as long as voltage is greater than 10～20V in the circuit.Electric current is greater than 80～100mA.Between dynamic and static contact just electric arc may appear.Though this moment, contact separated, but electric current continues circulation by the electric arc between contact.
The generating period variation in time of the current instantaneous value of alternating current, therefore at the zero crossing of electric current, electric current becomes 0, and electric arc can disappear automatically.But therefore direct current, after electric arc produces, is difficult to extinguishing arc because there is not current zero-crossing point; Until two contacts of connector are separated into enough distances, electric arc could disappear automatically.
Electric arc is the free gas of high temperature high conductivity, and it not only has very big destruction to contact, may the person or the equipment of its periphery be caused serious injury simultaneously, even causes serious disaster such as fire.
Most solar grid-connected inverter in actual applications, general DC input voitage is all greatly between 100～1000V, electric current, voltage are all much larger than the generation condition of electric arc.During the installation of combining inverter, operation, maintenance, may need band to carry and cut off a direct current, therefore, must increase a dc switch at the direct current input side of combining inverter with band year switching capability.
Because the particularity of direct current arc extinguishing, the switch of direct current is very expensive in the market, and the dc switch of a 20A/1000VDC is greatly about about 1000 yuans.
The utility model content
The purpose of this utility model is: a kind of direct current arc discharge circuit that prevents is provided, and it is simple in structure, and is easy to use, and the circuit link is few, and cost is low.
The technical solution of the utility model is: a kind of direct current arc discharge circuit that prevents, it comprises connector contact, main contacts, auxiliary contact, and the connecting circuit between described main contacts and the auxiliary contact is provided with this connecting circuit of may command and disconnects or closed electronic switch.
Described auxiliary contact are arranged at connector contact and contact with main contacts on the position that must touch before.
Traditional connector is the form of two contacts, and the technical program is by auxiliary contact of increase, and an electronic switch realizes eliminating electric arc.Its key is: in the process of inserting contact, when the contact of connector was connected with auxiliary contact, the current direction of connector forwarded the auxiliary current path of electronic switch to, and circuit is realized extinguishing arc by this loop; In pulling out the process of contact, when the contact of connector separated with main contacts, the current direction of connector forwarded the auxiliary current path of electronic switch to, and circuit is also realized extinguishing arc by this loop; When the contact of connector separated with auxiliary contact, electronic switch disconnected, and did not also have electric current to exist, and therefore, also can not produce electric arc.
The utility model has the advantages that: the utility model is simple in structure, and is easy to use, and the circuit link is few, and cost is low.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1 is application schematic diagram of the present utility model (having represented structure of the present utility model in the empty frame);
Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 are the utility model each step schematic diagram in use.
Wherein: 1 contact; 2 main contactss; 3 auxiliary contact; 5 electronic switches; 6 loads.
Embodiment
Embodiment: as shown in Figure 1, a kind of direct current arc discharge circuit that prevents, it comprises connector contact 1, main contacts 2, auxiliary contact 3, and the connecting circuit between described main contacts 2 and the auxiliary contact 3 is provided with this connecting circuit of may command and disconnects or closed electronic switch 5.
Described auxiliary contact 3 are arranged at connector contact 1 and contact with main contacts 2 on the position that must touch before.
The utility model each step such as Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7 in use, dotted arrow is represented current direction in the diagram, solid arrow is the contact moving direction.
In the process of socket, connector, may further comprise the steps:
A. as shown in Figure 2, when the process of socket, connector began, electronic switch 5 kept disconnecting.
B. as shown in Figure 3, after the head end of connector contact 1 and connector auxiliary contact 3 are connected, electronic switch 5 closures, connecting circuit and then realization the arcing problem when preventing from insert of the electric current that flows through connector by electronic switch 5 places.
C. as shown in Figure 4, when the head end of connector contact 1 and connector main contacts 2 were connected, electronic switch 5 remained closed or disconnected and all can this moment.
In unpluging the process of connector, may further comprise the steps:
D. as shown in Figure 5, the head end of connector contact 1 separates with connector main contacts 2, and electronic switch 5 remains closed in this process, the connecting circuit and then the arcing problem of realization when preventing to turn-off of the electric current that flows through connector by electronic switch 5 places.
E. as shown in Figure 6, when the head end of connector contact 1 was about to separate with connector auxiliary contact 3, electronic switch 5 disconnected, and the electric current that flows through connector also disconnects synchronously, the head end of connector contact 1 and connector auxiliary contact 3 disconnect again, and then the arcing problem when realizing preventing to turn-off.
F. as shown in Figure 7, the head end of connector contact 1 separates fully with connector auxiliary contact 3, arrives initial bit, forms certain physical with connector auxiliary contact 3 and isolates, and electronic switch 5 remained closed or disconnected and all can this moment.
Should be pointed out that for the utility model also to have the embodiment of multiple conversion and remodeling, be not limited to the specific embodiment of above-mentioned execution mode through proving absolutely.The foregoing description is as just explanation of the present utility model, rather than restriction.In a word, protection range of the present utility model should comprise those conspicuous to those skilled in the art conversion or substitute and remodeling.
Claims (2)
1. one kind prevents direct current arc discharge circuit, it is characterized in that: it comprises connector contact (1), main contacts (2), auxiliary contact (3), and the connecting circuit between described main contacts (2) and the auxiliary contact (3) is provided with this connecting circuit of may command and disconnects or closed electronic switch (5).
2. the direct current arc discharge circuit that prevents according to claim 1 is characterized in that: described auxiliary contact (3) are arranged at connector contact (1) and contact with main contacts (2) on the position that must touch before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202122602U CN201766190U (en) | 2010-06-02 | 2010-06-02 | Circuit capable of preventing direct current from arc discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202122602U CN201766190U (en) | 2010-06-02 | 2010-06-02 | Circuit capable of preventing direct current from arc discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766190U true CN201766190U (en) | 2011-03-16 |
Family
ID=43718797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202122602U Expired - Lifetime CN201766190U (en) | 2010-06-02 | 2010-06-02 | Circuit capable of preventing direct current from arc discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766190U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888045A (en) * | 2010-06-02 | 2010-11-17 | 江苏艾索新能源股份有限公司 | Circuit and method for preventing direct current arc discharge |
| US9666977B2 (en) | 2015-07-29 | 2017-05-30 | Abb Schweiz Ag | Direct current socket with direct current arc protection |
| US10483693B2 (en) | 2015-09-24 | 2019-11-19 | Abb Schweiz Ag | Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts |
-
2010
- 2010-06-02 CN CN2010202122602U patent/CN201766190U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888045A (en) * | 2010-06-02 | 2010-11-17 | 江苏艾索新能源股份有限公司 | Circuit and method for preventing direct current arc discharge |
| WO2011150684A1 (en) * | 2010-06-02 | 2011-12-08 | 江苏艾索新能源股份有限公司 | Direct current arc proof circuit and method thereof |
| US9666977B2 (en) | 2015-07-29 | 2017-05-30 | Abb Schweiz Ag | Direct current socket with direct current arc protection |
| US10483693B2 (en) | 2015-09-24 | 2019-11-19 | Abb Schweiz Ag | Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee after: Jiangsu Zeversolar New Energy Co.,Ltd. Address before: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee before: JIANGSU EVER-SOLAR NEW ENERGY Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ZOF NEW ENERGY CO., LTD. Effective date: 20140320 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee after: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. Address before: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee before: Jiangsu Zeversolar New Energy Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140320 Address after: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee after: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. Patentee after: JIANGSU ZOF NEW ENERGY Co.,Ltd. Address before: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Patentee before: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Kolding road high tech Zone of Suzhou City, Jiangsu Province, No. 78 215011 Co-patentee after: Esma new energy technology (Yangzhong) Co.,Ltd. Patentee after: Esma new energy technology (Jiangsu) Co.,Ltd. Address before: 215011 Suzhou province high tech Zone Xiangyang Road, No. 9, building 198, Jiangsu Co-patentee before: JIANGSU ZOF NEW ENERGY Co.,Ltd. Patentee before: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000 Factory Building No. 1989 Xiangyang Road, Suzhou High-tech Zone, Jiangsu Province Co-patentee after: Aishiwei New Energy Technology (Yangzhong) Co.,Ltd. Patentee after: Esway new energy technology (Jiangsu) Co.,Ltd. Address before: 215011 No. 78 Keling Road, Suzhou High-tech Zone, Jiangsu Province Co-patentee before: Esma new energy technology (Yangzhong) Co.,Ltd. Patentee before: Esma new energy technology (Jiangsu) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |