CN207070009U - Header box with arcing early warning and defencive function - Google Patents
Header box with arcing early warning and defencive function Download PDFInfo
- Publication number
- CN207070009U CN207070009U CN201720948940.2U CN201720948940U CN207070009U CN 207070009 U CN207070009 U CN 207070009U CN 201720948940 U CN201720948940 U CN 201720948940U CN 207070009 U CN207070009 U CN 207070009U
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- Prior art keywords
- module
- header box
- arcing
- monitoring module
- box body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a kind of header box with arcing early warning and defencive function, it includes header box body, the input of the header box body is connected to the output end of fuse, the output end of the header box body is connected to inverter, the temperature monitoring module for being used for monitoring bus temperature is provided with the header box body, and monitoring module, wire-outgoing breaker and power module, the signal output part of the temperature monitoring module is connected to the signal input part of monitoring module, the signal output part of the monitoring module is connected to the signal input part of wire-outgoing breaker, the input of the wire-outgoing breaker is connected to the input of header box body, the output end of the wire-outgoing breaker is connected to the output end of header box body, the monitoring module and wire-outgoing breaker are by power module centrally connected power supply.The utility model can prejudge arcing in time and handle, automatically shut down breaker, avoid the harm of arcing from expanding early stage arcing occurs.
Description
Technical field
It the utility model is related to photovoltaic combiner box, and in particular to a kind of header box with arcing early warning and defencive function.
Background technology
At present, energy problem's getting worse.Main energy sources of the solar energy as future, solar power generation has begun to should
With various large-sized photovoltaic power stations are arisen at the historic moment.In solar photovoltaic generation system, in order to reduce solar-energy photo-voltaic cell array
Line between inverter, certain amount, the series connection of specification identical photovoltaic cell can be got up, form photovoltaic string one by one
Row, the parallel connection of several photovoltaic tandems is then accessed into photovoltaic combiner box again, after confluxing with photovoltaic combiner box, with photovoltaic DC-to-AC converter
Support the use so as to form complete photovoltaic generating system, realize grid-connected with civil power.
In recent years, following characteristics are presented in domestic and international photovoltaic combiner box field：
1st, enormous amount, the domestic photovoltaic nearly 30GW of installed capacity newly-increased every year, the demand about 400,000 of photovoltaic combiner box
It is individual；
2. voltage increase, 1000V direct current conflux cases are generally used on the market at present, in order to lift the effect of photovoltaic system
Rate, operating voltage step up, and photovoltaic electric positive pressure enters the 1500V stages from 1000V at present, high with the lifting of operating voltage
The arcing harm of voltage also can be bigger；
3rd, professional lacks, and due to the fast development of photovoltaic industry, corresponding professional's demand accordingly increases
Add, in face of substantial amounts of demand, there is personnel's wretched insufficiency of industry experience, cause each power station to recruit the personnel to lack experience to do simply
Training is just on duty, and certain hidden danger is brought to the person in maintenance and property safety.
The starting point of the header box detection of main flow is still around the parameter for avoiding generated energy loss correlation, such as electricity at present
Pressure, electric current, circuit-breaker status, lightning protection device state etc., the generation of look-ahead header box safety problem is gone without corresponding parameter.
Such as：
(1) detection of breaker is all just to send alarm when failure has produced and influences generated energy, can not be pre- in advance
Report.
(2) equipment lacks the protection to personnel, and attendant has found casing failure from backstage, and enabling is checked, it is possible to case
It is positive in vivo that the dangerous higher failure such as arcing occurs, if the electric current of arcing can not be disconnected in time by now unpacking, in casing again
Arcing can increase the harm of arcing plus the addition of fresh air.
The content of the invention
The utility model provides a kind of header box with arcing early warning and defencive function, the morning that can occur in arcing
Phase, arcing is prejudged in time and is handled, breaker is automatically shut down, avoids the harm of arcing from expanding.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：One kind has arcing early warning and protection work(
The header box of energy, it includes header box body, and the input of the header box body is connected to the output end of fuse, the remittance
The output end of stream case body is connected to inverter,
The temperature monitoring module for being used for monitoring bus temperature, and monitoring module, outlet are provided with the header box body
Breaker and power module, the signal output part of the temperature monitoring module is connected to the signal input part of monitoring module, described
The signal output part of monitoring module is connected to the signal input part of wire-outgoing breaker, and the input of the wire-outgoing breaker is connected to
The input of header box body, the output end of the wire-outgoing breaker are connected to the output end of header box body, the monitoring mould
Block and wire-outgoing breaker are by power module centrally connected power supply.
Above, the external photovoltaic group string of the input of the fuse, photovoltaic group string are specially：A plurality of specification identicals
Photovoltaic cell series connection, which is got up, forms a photovoltaic tandem, and the series connection of several photovoltaics composes in parallel photovoltaic group string.
Preferably, the temperature monitoring module includes temperature switch and/or thermistor.
Further, in addition to an alarm module, the signal input part of the alarm module are connected to the letter of monitoring module
Number output end, the power input of the alarm module are connected to power module.
Further, in addition to a lightning-protection module, the signal input part of the lightning-protection module are connected to the letter of monitoring module
Number output end, the power input of the lightning-protection module are connected respectively to the output end of power module and fuse.
Further, the lightning-protection module includes the first Surge Protector, the second Surge Protector and the 3rd surge protection
Connected again with the 3rd Surge Protector after device, first Surge Protector and the second Surge Protector parallel connection.
Operation principle of the present utility model is：Monitor the temperature of bus in real time by temperature monitoring module, work as bus temperature
When reaching setting value, the possibility that prediction arcing occurs is higher, now, automatically shuts down breaker, so as to cut off the electricity supply, is drawing
The early stage that arc occurs just can in time be handled and send alarm, avoid operation maintenance personnel when opening the door by the flame caused by arcing
Burn.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1. the utility model by setting temperature monitoring module in header box, monitors the temperature of bus, Neng Gou in real time
The early stage that arcing occurs just is handled, and is turned off breaker, is cut off the electricity supply, and sends alarm, so as to effectively prevent arcing
Harm expands, and protects the personal safety of operation maintenance personnel；
2. the utility model is simple in construction, easily manufactured, suitable for popularization and application.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Shown in figure：1st, fuse；2nd, temperature monitoring module；3rd, monitoring module；4th, wire-outgoing breaker；5th, power module；
6th, temperature switch；7th, thermistor；8th, lightning-protection module.
Embodiment
In order to make it easy to understand, illustrated with reference to embodiment.It should be understood that these embodiments are merely to illustrate the utility model
Rather than limitation the scope of the utility model.
Shown in Figure 1, the utility model discloses a kind of header box with arcing early warning and defencive function, it includes
Header box body, the input of the header box body are connected to the output end of fuse 1, the output end of the header box body
It is connected to inverter,
It is provided with the temperature monitoring module 2 for being used for monitoring bus temperature in the header box body, and monitoring module 3, goes out
Line breaker 4 and power module 5, the signal output part of the temperature monitoring module are connected to the signal input part of monitoring module,
The signal output part of the monitoring module is connected to the signal input part of wire-outgoing breaker, and the input of the wire-outgoing breaker connects
The input of header box body is connected to, the output end of the wire-outgoing breaker is connected to the output end of header box body, the prison
Module and wire-outgoing breaker are controlled by power module centrally connected power supply.
Above, the external photovoltaic group string of the input of the fuse, photovoltaic group string are specially：A plurality of specification identicals
Photovoltaic cell series connection, which is got up, forms a photovoltaic tandem, and the series connection of several photovoltaics composes in parallel photovoltaic group string.
In the present embodiment, the temperature monitoring module includes temperature switch and/or thermistor, can specifically use temperature
Switch 6 and thermistor 7 monitor simultaneously.
Also including an alarm module, the signal input part of the alarm module is connected to the signal output part of monitoring module,
The power input of the alarm module is connected to power module.
Also including a lightning-protection module 8, the signal input part of the lightning-protection module is connected to the signal output part of monitoring module,
The power input of the lightning-protection module is connected respectively to the output end of power module and fuse.
The lightning-protection module includes the first Surge Protector, the second Surge Protector and the 3rd Surge Protector, and described
Connected again with the 3rd Surge Protector after one Surge Protector and the second Surge Protector parallel connection.
The utility model when in use, the temperature of bus is monitored by temperature monitoring module in real time, when bus temperature reaches
During setting value, the possibility that prediction arcing occurs is higher, now, automatically shuts down breaker, so as to cut off the electricity supply, is sent out in arcing
Raw early stage just can in time be handled and send alarm, avoid operation maintenance personnel from being burnt when opening the door by the flame caused by arcing
Wound.
It is pointed out that automatically cutting off the condition of breaker can be set in monitoring module.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to above-described embodiment will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to above-described embodiment shown in this article, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
- A kind of 1. header box with arcing early warning and defencive function, it is characterised in that：It includes header box body, described to conflux The input of case body is connected to the output end of fuse, and the output end of the header box body is connected to inverter,The temperature monitoring module for being used for monitoring bus temperature, and monitoring module, outlet open circuit are provided with the header box body Device and power module, the signal output part of the temperature monitoring module are connected to the signal input part of monitoring module, the monitoring The signal output part of module is connected to the signal input part of wire-outgoing breaker, and the input of the wire-outgoing breaker, which is connected to, to conflux The input of case body, the output end of the wire-outgoing breaker are connected to the output end of header box body, the monitoring module and Wire-outgoing breaker is by power module centrally connected power supply.
- 2. the header box according to claim 1 with arcing early warning and defencive function, it is characterised in that：The temperature prison Surveying module includes temperature switch and/or thermistor.
- 3. the header box according to claim 1 with arcing early warning and defencive function, it is characterised in that：Also include a report Alert module, the signal input part of the alarm module are connected to the signal output part of monitoring module, the power supply of the alarm module Input is connected to power module.
- 4. the header box according to claim 1 with arcing early warning and defencive function, it is characterised in that：It is anti-also to include one Thunder module, the signal input part of the lightning-protection module are connected to the signal output part of monitoring module, the power supply of the lightning-protection module Input is connected respectively to the output end of power module and fuse.
- 5. the header box according to claim 4 with arcing early warning and defencive function, it is characterised in that：The lightning protection mould Block includes the first Surge Protector, the second Surge Protector and the 3rd Surge Protector, first Surge Protector and second Connected again with the 3rd Surge Protector after Surge Protector parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948940.2U CN207070009U (en) | 2017-07-31 | 2017-07-31 | Header box with arcing early warning and defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720948940.2U CN207070009U (en) | 2017-07-31 | 2017-07-31 | Header box with arcing early warning and defencive function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207070009U true CN207070009U (en) | 2018-03-02 |
Family
ID=61518238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720948940.2U Expired - Fee Related CN207070009U (en) | 2017-07-31 | 2017-07-31 | Header box with arcing early warning and defencive function |
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|---|---|
| CN (1) | CN207070009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034725A (en) * | 2019-05-24 | 2019-07-19 | 宁波恒升电气有限公司 | A kind of digital photovoltaic exchange header box |
-
2017
- 2017-07-31 CN CN201720948940.2U patent/CN207070009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034725A (en) * | 2019-05-24 | 2019-07-19 | 宁波恒升电气有限公司 | A kind of digital photovoltaic exchange header box |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180302 Termination date: 20180731 |