CN206865409U - A kind of photovoltaic special DC anti-reverse device - Google Patents
A kind of photovoltaic special DC anti-reverse device Download PDFInfo
- Publication number
- CN206865409U CN206865409U CN201720650867.0U CN201720650867U CN206865409U CN 206865409 U CN206865409 U CN 206865409U CN 201720650867 U CN201720650867 U CN 201720650867U CN 206865409 U CN206865409 U CN 206865409U
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- CN
- China
- Prior art keywords
- housing
- reverse device
- main body
- package main
- backlight unit
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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
Abstract
A kind of photovoltaic special DC anti-reverse device, it is characterized in that the anti-reverse device includes a package main body, the first housing and the second housing that the package main body is mainly welded by upper and lower spiral-lock form, encapsulation diode chip for backlight unit, the pin of diode chip for backlight unit are welded and fixed and draw outer lead in the package main body；The package main body is outer formed with radiating fin and fin；Metal bolts are equipped with the package main body.The photovoltaic special DC anti-reverse device uses simplest anti-circnit NOT, possess excellent heat dispersion performance and temperature characterisitic, it is low in energy consumption and there is excellent Power Cycle, its diode package structure realizes preferable natural cooling performance while can providing good electrical insulation, can be widely used in photovoltaic generating system.
Description
Technical field
The utility model belongs to direct current counnter attack circuit engineering, is specifically related to the photovoltaic special straight for photovoltaic generating system
Flow anti-reverse device
Background technology
Currently, as a large amount of construction of photo-voltaic power generation station are with putting into operation, people start increasingly to pay close attention to whole power station
Energy-saving benefit and its security.Thus, the generating in-fighting for how eliminating photovoltaic plant seems with improving power station safety in operation
It is particularly important with it is urgent.The generating in-fighting of photovoltaic module, the damage of reduction photovoltaic module, lifting photovoltaic module are reduced to greatest extent
The security of operation is to improve the necessary means of energy-saving benefit.In photovoltaic plant, in parallel group caused by a variety of causes
Voltage mismatch phenomenon is generally existing between part string.The presence of this mismatch so that circulation, component are produced between each component string
Run under prolonged circulation state, first, internal loss can be produced, reduce generated energy；Second, circulation can make photovoltaic module by
Damage, the influence to component generating capacity is irreversible.Therefore, the normal operation to safeguards system and personnel, the safety of equipment
And lifting generating efficiency is all significant.
At present, conventional photovoltaic DC-to-AC converter counnter attack device has a variety of, for example, single diode seal in formula, fuse+reversely
Parallel diode formula, the diode access type of bridge-type four, and anti-circnit NOT of N-channel enhancement mode FET etc..Single diode
Although sealing in formula in the presence of some shortcomings, such as because the PN junction of diode is in conducting, a pressure drop be present, this pressure drop is just led
This circuit is caused suitable for application in the larger circuit of electric current；The caloric value of such as diode is higher again, in compact-sized sky
Between it is bigger on being influenceed in the stability of product or the use feeling of people in limited product；It is crucial that power consumption is big,
Caloric value is high, and fire easily occurs.But the circuit of this kind of anti-reverse device is very simple, cost is low, for low current product also
It is to possess larger application space.
Utility model content
The utility model provides one kind and possesses excellent heat dispersion performance and temperature characterisitic, low in energy consumption and have excellent work(
The photovoltaic special DC anti-reverse device of rate circulation ability, its diode package structure can provide real while good electrical insulation
Now preferable natural cooling performance, can be widely used in photovoltaic generating system.
Technical scheme is as follows used by the utility model：
A kind of photovoltaic special DC anti-reverse device, it is characterised in that the anti-reverse device includes a package main body, the encapsulation
The first housing and the second housing that main body is mainly welded by upper and lower spiral-lock form, encapsulation diode chip for backlight unit in the package main body, and two
The pin of pole pipe chip is welded and fixed and draws outer lead；The package main body is outer formed with radiating fin and fin；It is described
Metal bolts are equipped with package main body.
Concretely, the first housing of the package main body has the recess of second housing of spiral-lock, the bottom of the recess
Face is embedded in diode chip for backlight unit, and insulating barrier is provided with below diode chip.
In one embodiment, second housing is embedded in be assembled into the first housing, first housing and the second housing
Annular setting-in is filled with insulated enclosure glue-line between side end face.
In one embodiment, the lower surface of the second housing is provided with an insulating barrier, the insulating barrier and the diode chip for backlight unit
It is correspondingly arranged.
In another embodiment, the recess bottom face of first housing has groove of the outer shroud around setting, corresponding
The spiral-lock end bottom of second housing is provided with the boss of annular, and the groove is with matching spiral-lock welded seal between boss.
The both side ends of first housing are provided with the radiating fin integrally extended；The outer face of second housing is set
It is equipped with the fin of arranged distribution.
In one embodiment, the side of the package main body is that two are relatively set between the first housing and the second housing
Wire fairlead, the outer lead for connecting two pins of diode chip for backlight unit respectively are drawn by the wire fairlead.
Set in addition, the metal bolts are worn between the first housing and the second housing, the metal bolts and the first housing
And second be filled with insulated enclosure glue-line between housing.
In a further embodiment, the through hole worn for metal bolts is correspondingly arranged on first housing and the second housing,
The through hole is set between being located at the two pins of diode chip for backlight unit.
In another embodiment, the other end connection of the outer lead sets MC4 joints.
The photovoltaic special DC anti-reverse device uses insulation-encapsulated structure, can ensure between diode chip for backlight unit and package main body
Bear 3600V alternating voltages.The package main body of the high polymer material of the welding of spiral-lock up and down of first housing and the second housing composition
Preferable heat conduction is played while chip connecting structure can be protected.Wear the metal of the first housing and the second housing
Bolt possesses good capacity of heat transmission, the rapid heat reduced in the middle part of package main body.The outer end of first housing and the second housing
Radiating fin and fin that face is set can effectively improve the outer face heat-sinking capability of package main body.Diode chip for backlight unit is led with encapsulation
Insulating barrier can be set between body, improve the insulating properties of the package main body of insulating polymeric material structure.
The beneficial effects of the utility model are that the photovoltaic special DC anti-reverse device uses simplest anti-circnit NOT, tool
Standby excellent heat dispersion performance and temperature characterisitic, low in energy consumption and with excellent Power Cycle, its diode package structure
Preferable natural cooling performance is realized while good electrical insulation can be provided, photovoltaic generating system can be widely used in.
The utility model is further elaborated with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the cross-section structure distribution map of the first housing and the second housing in the utility model embodiment.
Embodiment
As depicted in figs. 1 and 2, the photovoltaic special DC anti-reverse device mainly by package main body, diode chip for backlight unit 40 and with
Its outer lead connected composition, the other end of two outer leads 12,13, which can connect, sets MC4 joints, and MC4 joints are general
The male and female plug that uses of photovoltaic plant.The first housing 10 and the second housing 20 that package main body is mainly welded by upper and lower spiral-lock
Composition, the interior encapsulation diode chip for backlight unit 40 of package main body.First housing 10 of package main body has the recessed of second housing of spiral-lock 20
Portion 15, the bottom face of the recess are embedded in diode chip for backlight unit 40, insulating barrier 16 are provided with below diode chip for backlight unit.Second housing 20
It is embedded in and is assembled into the first housing 10, filled with exhausted between the annular setting-in side end face 26 of the housing 20 of the first housing 10 and second
Edge sealant layer.The recess bottom face of first housing 10 has an outer shroud around the groove 14 of setting, the button of corresponding second housing
Dress end bottom is provided with the boss 24 of annular, and the groove 14 between boss 24 with matching spiral-lock welded seal.Second housing
Lower surface is provided with an insulating barrier 23, and the insulating barrier 23 is correspondingly arranged with the diode chip for backlight unit 40.Insulating barrier 23 and insulating barrier
16 form stable proof and electric leakage-proof safety up and down in diode chip for backlight unit 40.
Package main body is outer formed with radiating fin and fin；Concretely, the both side ends of the first housing 10 are provided with one
The radiating fin 11 of body extension；The outer face of second housing 20 is provided with the fin 21 of arranged distribution.Diode chip for backlight unit 40
Pin 41 be welded and fixed and draw outer lead, the side of package main body is to be oppositely arranged between the first housing and the second housing
There are two wire fairleads 25, connect the outer lead 12,13 of two pins of diode chip for backlight unit respectively by the wire fairlead
Draw.
Metal bolts 30 are equipped with the package main body, are correspondingly arranged on the first housing and the second housing for metal bolts
The through hole 17 and 22 worn, the through hole are set between being located at the two pins of diode chip for backlight unit.Metal bolts 30 wear first shell
Set between body and the second housing, insulated enclosure glue-line is filled between the metal bolts and the first housing and the second housing.
Claims (10)
1. a kind of photovoltaic special DC anti-reverse device, it is characterised in that the anti-reverse device includes a package main body, encapsulation master
The first housing and the second housing that body is mainly welded by upper and lower spiral-lock form, encapsulation diode chip for backlight unit, two poles in the package main body
The pin of die is welded and fixed and draws outer lead；The package main body is outer formed with radiating fin and fin；The envelope
Metal bolts are equipped with dress main body.
2. photovoltaic special DC anti-reverse device according to claim 1, it is characterised in that the first shell of the package main body
Body has the recess of second housing of spiral-lock, and the bottom face of the recess is embedded in diode chip for backlight unit, set below diode chip for backlight unit
There is insulating barrier.
3. photovoltaic special DC anti-reverse device according to claim 2, it is characterised in that second housing is embedded in into
One housing is assembled, and insulated enclosure glue-line is filled between the annular setting-in side end face of first housing and the second housing.
4. photovoltaic special DC anti-reverse device according to claim 3, it is characterised in that the lower surface of the second housing is set
There is an insulating barrier, the insulating barrier is correspondingly arranged with the diode chip for backlight unit.
5. photovoltaic special DC anti-reverse device according to claim 2, it is characterised in that the recess bottom of first housing
End face has groove of the outer shroud around setting, and the spiral-lock end bottom of corresponding second housing is provided with the boss of annular, described
Spiral-lock welded seal is matched between groove and boss.
6. photovoltaic special DC anti-reverse device according to claim 2, it is characterised in that the two side ends of first housing
Portion is provided with the radiating fin integrally extended；The outer face of second housing is provided with the fin of arranged distribution.
7. photovoltaic special DC anti-reverse device according to claim 1, it is characterised in that the side of the package main body is
Two wire fairleads are relatively set between first housing and the second housing, connect the outer of two pins of diode chip for backlight unit respectively
Portion's wire is drawn by the wire fairlead.
8. photovoltaic special DC anti-reverse device according to claim 1, it is characterised in that the metal bolts wear first
Set between housing and the second housing, insulated enclosure glue-line is filled between the metal bolts and the first housing and the second housing.
9. photovoltaic special DC anti-reverse device according to claim 8, it is characterised in that first housing and second shell
The through hole worn for metal bolts is correspondingly arranged on body, the through hole is set between being located at the two pins of diode chip for backlight unit.
10. photovoltaic special DC anti-reverse device according to claim 1, it is characterised in that the other end of the outer lead
Connection sets MC4 joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650867.0U CN206865409U (en) | 2017-06-06 | 2017-06-06 | A kind of photovoltaic special DC anti-reverse device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650867.0U CN206865409U (en) | 2017-06-06 | 2017-06-06 | A kind of photovoltaic special DC anti-reverse device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865409U true CN206865409U (en) | 2018-01-09 |
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ID=60831192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720650867.0U Active CN206865409U (en) | 2017-06-06 | 2017-06-06 | A kind of photovoltaic special DC anti-reverse device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206865409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
-
2017
- 2017-06-06 CN CN201720650867.0U patent/CN206865409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040200A (en) * | 2017-06-06 | 2017-08-11 | 高晶石 | A kind of photovoltaic special DC anti-reverse device |
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