CN207124607U - A kind of photovoltaic conflux box - Google Patents
A kind of photovoltaic conflux box Download PDFInfo
- Publication number
- CN207124607U CN207124607U CN201721013576.7U CN201721013576U CN207124607U CN 207124607 U CN207124607 U CN 207124607U CN 201721013576 U CN201721013576 U CN 201721013576U CN 207124607 U CN207124607 U CN 207124607U
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- Prior art keywords
- busbar
- confluxes
- temperature
- module
- conflux
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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
It the utility model is related to a kind of photovoltaic conflux box, including box body, the busbar that confluxes, temperature detecting module, control module and radiating module are provided with box body, is provided with temperature detecting module and the one-to-one temperature sensor of the busbar that confluxes, each temperature sensor is arranged in corresponding conflux on busbar.Because temperature sensor with the busbar that confluxes contacts installation, therefore, each temperature sensor can accurately detect the temperature for the busbar that confluxes, because the temperature for the busbar that confluxes can reflect at switch interface the running status for the header boxs such as loosen, whether electrical cnnector aging causes resistance increase heating to increase whether occur, therefore, temperature by detecting the busbar that respectively confluxes can accurately obtain the running status of bus cases, and bus cases are monitored in real time.The photovoltaic conflux box can find failure in time, and the design of temperature controlling function can effectively avoid internal component from the failure for being difficult to repair such as deforming, burn out caused by temperature is too high, possess higher reliability.
Description
Technical field
It the utility model is related to a kind of photovoltaic conflux box.
Background technology
Photovoltaic aid-the-poor project is just carried out in high gear in various regions, and building at village level photovoltaic plant in poor village has just like turned into
The main flow of current new energy construction.The roof that address is resident family is mainly built at village level power station, and area is small, and installed capacity is limited, tool
There is the features such as scattered installation, single grid entry point capacity is small, grid-connected voltage grade is low.At present, collector-shoe gear on the market is 5~16
The alternating current-direct current header box of road inlet wire, suitable for the photovoltaic system installed concentratedly or single grid entry point is of certain scale, do not apply to
Construction at village level power station.
Application publication number is to disclose a kind of photovoltaic combiner box in CN106357215A Chinese patent application file, including
Casing, temperature-detecting device, heat abstractor and control device are provided with casing, when the case body temperature detected is higher than default
During scope, control heat abstractor is radiated, and component is operated in confidence band in guard box body, is increased the service life.Temperature
The temperature signal of degree detection means detection is the ambient temperature information in casing, is not specific region or specific component
Temperature.But according to put into operation at present photovoltaic plant fault data statistics from the point of view of, most header box failure be all by
In particular device temperature is too high, it is exceeded to occur the temperature difference caused by loosening at switch interface, or electrical cnnector aging institute
Cause resistance increase heating increase etc. caused by reason.Header box burnout phenomenon happens occasionally, so as to the fire of initiation, power failure thing
Therefore threaten power grid security even personal safety.
It is well known that the rise of metal material temperature can cause the increase of its resistance, resistance becomes big can cause heating to increase again, follow
Ring is reciprocal, must finally cause metal material surface because prolonged temperature is too high and aoxidize；And with metal surface temperature
Degree rise, material can soften, and be just deformed after cooling.Metal material in casing is mainly the busbar that confluxes, therefore,
Conflux busbar temperature can reflect at switch interface whether occur loosen, electrical cnnector aging whether cause resistance increase hair
Phenomena such as heat increase etc., i.e. the temperature for the busbar that confluxes can embody the running status of header box.When temperature is too high, it should drop in time
Temperature, the further expansion of failure is avoided, prevent header box from producing deformation even component damage because temperature is too high.It is but above-mentioned
Temperature-detecting device in photovoltaic combiner box is used for the temperature of detection case vivo environment, the influence factor of the temperature of case vivo environment
Not only there are the outer weather temperature of part all in casing, also external factor, such as casing, therefore, case vivo environment
Temperature can not represent the temperature on busbar surface of confluxing, i.e., can not represent the temperature of metal material in casing, pass through above-mentioned photovoltaic
Temperature-detecting device in header box can not accurately reflect the temperature on busbar surface of confluxing, therefore, according to case vivo environment temperature
The running status of header box can not accurately be embodied.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic conflux box, can not be accurate to solve traditional photovoltaic combiner box
The problem of embodying the running status of header box.
To achieve the above object, scheme of the present utility model includes a kind of photovoltaic conflux box, including box body, is set in box body
There are the busbar that confluxes, temperature detecting module, control module and radiating module, control module sampling connects the temperature detecting module,
Control connects the radiating module, the temperature detecting module include it is identical with the number for the busbar that confluxes and with the busbar one that confluxes
Temperature sensor corresponding to one, each temperature sensor are arranged in corresponding conflux on busbar.
In photovoltaic conflux box, temperature sensor is provided with the busbar that each confluxes, each temperature sensor can be examined accurately
The temperature for the busbar that confluxes is measured, whether occurs loosening because the temperature for the busbar that confluxes can reflect at switch interface, be electrically connected
Whether device aging causes the running status of the header boxs such as resistance increase heating increase, therefore, the temperature for the busbar that respectively confluxes by detection
Degree can accurately obtain the running status of bus cases, and bus cases are monitored in real time.Moreover, the temperature for the busbar that ought respectively conflux is high
When given threshold, radiating module can be controlled to radiate the busbar that respectively confluxes, avoid temperature is too high from causing internal unit to damage
It is bad.Therefore, the photovoltaic conflux box can find failure in time, and the design of temperature controlling function can effectively avoid internal component because of temperature mistake
The failure for being difficult to repair such as deform, burn out caused by height, possessing higher reliability.
The bus cases are exchange bus cases, and the busbar that confluxes in box body confluxes busbar, C phases for conflux busbar, B phases of A phases
Conflux busbar and PE phases of busbar, the N phases of confluxing is confluxed busbar, and the temperature detecting module includes five temperature sensors, right respectively
It should be arranged in and respectively conflux on busbar.
Arrester is additionally provided with the box body, the busbar that confluxes connects the arrester by fuse.Arrester front end
Fuse protection measure is provided with, can effectively prevent overvoltage from damaging equipment.
The feeder ear connection power module of the control module, the voltage input end of the power module connect mother of confluxing
Row, power taking are opened in the busbar that confluxes, the voltage input end of the power module with string on the power taking circuit for the busbar that confluxes provided with air
Close, for realizing safe power supply.
The control module is connected with communication module, for temperature signal to be transferred into background monitoring system, realizes with after
The real-time Communication for Power of platform photovoltaic monitoring system.
The radiating module is radiator fan, and the busbar that respectively confluxes is arranged around the radiator fan, can be to mother of respectively confluxing
Discharge into row effectively radiating.
Input cable water joint, output cable water joint and earth cable is provided with the downside of the box body to prevent
Water swivel, for connecting corresponding equipment.
Box body is not less than 2mm hot-dip galvanizing sheet steel using thickness, and box body door-hinge is stainless steel door-hinge, has protection against the tide, anti-purple
It is outside line, anti-aging, the features such as being easy to radiating.
Brief description of the drawings
Fig. 1 is distributed photovoltaic power generation system architecture sketch；
Fig. 2 is the layout drawing of part in photovoltaic conflux box；
Fig. 3 is the electronic schematic diagram of photovoltaic conflux box；
Fig. 4 is photovoltaic conflux box outside drawing；
Fig. 5 is each joint arrangement figure of photovoltaic conflux box downside.
Embodiment
Photovoltaic conflux box provided by the utility model can be exchange bus cases, and what is confluxed on the busbar that confluxes is alternating current；
Can also be direct current bus cases, then, what is confluxed on the busbar that confluxes is direct current.The present embodiment is exemplified by exchanging bus cases.
As shown in figure 1, distributed photovoltaic power generation system includes several photovoltaic group strings 21, through the inversion of group string inverter 22
Into AC380V alternating current, in order that bus cases are applied to, area is small, the construction of the limited at village level roof photovoltaic power station of installed capacity,
In the present embodiment, two-way alternating current is confluxed in bus cases 23, then accesses power network.Therefore, the bus cases have scattered
Installation, the features such as single grid entry point capacity is small, and grid-connected voltage grade is low.
Be provided with the box body of bus cases the busbar that confluxes (also referred to as confluence copper bar), temperature-detecting device, control device and
Heat abstractor.Because bus cases are exchange bus cases, then, as shown in Fig. 2 the busbar that confluxes in bus cases just has A phases to conflux
Busbar 12-1, B phase busbar 12-2, C phase conflux busbar 12-4 and PE phases of busbar 12-3, N phase of confluxing of confluxing is confluxed busbar 12-5.By
The temperature sensor (also referred to as temperature transducer) included in temperature-detecting device is identical with the number for the busbar that confluxes, and one
One correspondence, then, the number of temperature sensor is just 5.As shown in Fig. 2 temperature biography is installed with the busbar that respectively confluxes
Sensor 14, such as by way of stickup.
Arrester 13 is additionally provided with box body, the busbar that confluxes connects arrester 13 by fuse 11, i.e., respectively conflux busbar
It is connected with fuse 11, is then grounded through arrester 13, the front end of arrester 13 is provided with fuse protection measure, and fuse 11
Rated current is 100A, can effectively prevent overvoltage from damaging equipment.In addition, exchange header box with what more centralized power station used
Compare, the bus cases that the present embodiment provides eliminate the configuration of breaker, and simple in construction, small volume is easily installed, and fault rate is low.
The implementation of heat abstractor 17 has many kinds, such as：Radiator fan, water cooling equipment etc., the present embodiment is to radiate
Exemplified by fan, as shown in Fig. 2 A phases are confluxed, busbar 12-1, B phase busbar 12-2, C phase busbar 12-3, N phase of confluxing of confluxing is confluxed mother
Row's 12-4 with PE phases conflux busbar 12-5 around radiator fan arrangement, can realize that the busbar that confluxes to this five is carried out while dissipated
Heat.
In the present embodiment, each output of temperature sensor 14 connection temperature measuring equipment 15, the temperature measuring equipment is equivalent to TEMP
The management equipment of device, for managing each temperature sensor.In the present embodiment, control device is data intelligence processing device 16, is surveyed
The warm output of device 15 connection data intelligence processing device 16, the control connection heat abstractor 17 of data intelligence processing device 16, such as Fig. 3
It is shown.
Data intelligence processing device 16 includes processor, power module, communication module, clock module and temperature control module.Its
In, processor is control core, and temperature control strategy is carried in the processor；Power module power supply connection processor, also,
The voltage input end of the power module connects the busbar that confluxes, defeated in the voltage of the power module for the power taking from the busbar that confluxes
Enter string on the power taking circuit between end and the busbar that confluxes and be provided with air switch 18, for realizing safe power supply；Communication module is used for
Temperature signal is transferred to background monitoring system, realizes the real-time Communication for Power of processor and backstage photovoltaic monitoring system；Intelligent data
Processing unit 16 controls connection heat abstractor 17, driving equipment of the temperature control module equivalent to heat abstractor by temperature control module；When
Clock module is an important step in data intelligence processing device 16, and the record of fault alarm event needs having time, clock
Module is communicated by a simple serial ports with processor, provide in real time the second, point, when, day, week, the information such as Month And Year.
Temperature measuring equipment 15 launches electromagnetism wave train to each temperature sensor 14, and each temperature sensor 14 receives electromagnetic wave and will
Surface acoustic wave with temperature information is converted into electromagnetic radiation to temperature measuring equipment 15, temperature measuring equipment 15 and is translated into electric signal
Sent afterwards by communication interface to the processor in data intelligence processing device 16, temperature value that processor contrast collects and pre-
The threshold value first set, if exceeding threshold value, alarm is sent to monitoring backstage by communication module, and issue instructions to temperature control mould
Block, temperature control module control start heat abstractor 17, and avoiding confluxing, busbar temperature is too high to cause device damage.
As shown in figure 4, box body is not less than 2mm galvanizing high-quality steel plate using effective thickness, box body door-hinge is not using
Become rusty steel door spindle, and box body structure has protection against the tide, uvioresistant, anti-aging, the features such as being easy to radiating, and complete machine degree of protection is not less than
IP65。
As shown in figure 5, setting mechanical input output interface and ground interface on the downside of box body, mechanical input output connects
Mouth includes input cable water joint 42 and output cable water joint 43, and ground interface is earth cable water joint 41, is connect
What ground interface connected is the ground connection busbar in bus cases.
Therefore, the photovoltaic conflux box has intelligent temperature measurement, temperature control and the function of fault warning, can find failure in time, control
The design of temperature function can effectively avoid internal component from the failure for being difficult to repair, the tool such as deforming, burn out caused by temperature is too high
Standby higher reliability.
Specific embodiment is presented above, but the utility model is not limited to described embodiment.This practicality
New basic ideas are above-mentioned basic scheme, for those of ordinary skill in the art, according to teaching of the present utility model,
Design the models of various modifications, formula, parameter and creative work need not be spent.Principle of the present utility model is not being departed from
The scope of protection of the utility model is still fallen within the change, modification, replacement and modification carried out in the case of spirit to embodiment
It is interior.
Claims (8)
1. a kind of photovoltaic conflux box, including box body, the busbar that confluxes, temperature detecting module, control module are provided with box body and is dissipated
Thermal modules, control module sampling connect the temperature detecting module, and control connects the radiating module, it is characterised in that described
Temperature detecting module include with the number for the busbar that confluxes it is identical and with the one-to-one temperature sensor of the busbar that confluxes, each temperature
Sensor arrangement is confluxed on busbar corresponding.
2. photovoltaic conflux box according to claim 1, it is characterised in that the bus cases are to exchange bus cases, in box body
The busbar that confluxes conflux busbar for A phases busbar, B phases busbar, C phases conflux busbar and PE phases of busbar, N phases of confluxing of confluxing of confluxing, institute
Stating temperature detecting module includes five temperature sensors, corresponds to be arranged in respectively and respectively confluxes on busbar.
3. photovoltaic conflux box according to claim 1, it is characterised in that be additionally provided with arrester in the box body, conflux
Busbar connects the arrester by fuse.
4. photovoltaic conflux box according to claim 1, it is characterised in that the feeder ear connection power supply mould of the control module
Block, the voltage input end of the power module connect the busbar that confluxes, and power taking is in the busbar that confluxes, the control source of the power module
Hold and the power taking circuit for the busbar that confluxes on string be provided with air switch.
5. photovoltaic conflux box according to claim 1, it is characterised in that the control module is connected with communication module.
6. photovoltaic conflux box according to claim 2, it is characterised in that the radiating module is radiator fan, is respectively confluxed
Busbar is arranged around the radiator fan.
7. photovoltaic conflux box according to claim 1, it is characterised in that input electricity is provided with the downside of the box body
Cable water joint, output cable water joint and earth cable water joint.
8. photovoltaic conflux box according to claim 1, it is characterised in that box body is not less than 2mm galvanizing using thickness
Steel plate, box body door-hinge are stainless steel door-hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013576.7U CN207124607U (en) | 2017-08-14 | 2017-08-14 | A kind of photovoltaic conflux box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013576.7U CN207124607U (en) | 2017-08-14 | 2017-08-14 | A kind of photovoltaic conflux box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124607U true CN207124607U (en) | 2018-03-20 |
Family
ID=61602863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013576.7U Expired - Fee Related CN207124607U (en) | 2017-08-14 | 2017-08-14 | A kind of photovoltaic conflux box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879400A (en) * | 2018-07-26 | 2018-11-23 | 许继集团有限公司 | A kind of exchange header box |
| CN108988780A (en) * | 2018-08-28 | 2018-12-11 | 湖州景盛新能源有限公司 | A kind of photovoltaic junction box improving radiating efficiency |
-
2017
- 2017-08-14 CN CN201721013576.7U patent/CN207124607U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879400A (en) * | 2018-07-26 | 2018-11-23 | 许继集团有限公司 | A kind of exchange header box |
| CN108988780A (en) * | 2018-08-28 | 2018-12-11 | 湖州景盛新能源有限公司 | A kind of photovoltaic junction box improving radiating efficiency |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 |
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| CF01 | Termination of patent right due to non-payment of annual fee |