CN202103607U - Solar energy photovoltaic assembly conjunction box - Google Patents
Solar energy photovoltaic assembly conjunction box Download PDFInfo
- Publication number
- CN202103607U CN202103607U CN2011202148594U CN201120214859U CN202103607U CN 202103607 U CN202103607 U CN 202103607U CN 2011202148594 U CN2011202148594 U CN 2011202148594U CN 201120214859 U CN201120214859 U CN 201120214859U CN 202103607 U CN202103607 U CN 202103607U
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- CN
- China
- Prior art keywords
- photovoltaic assembly
- cavity
- wiring cavity
- terminal box
- solar photovoltaic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
-
- 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
The utility model relates to a solar energy photovoltaic assembly conjunction box and is characterized in that: the solar energy photovoltaic assembly conjunction box comprises an electric portion composed of a set of metal sheets and diodes connected between the metal sheets; a a cable conductor is connected with the electric portion, with the electric portion and the coupling end of the cable conductor being injection molded and packaged in a body; the front side of the body is provided with a wiring cavity which is provided with a sealing cover; a sealing ring is arranged between the sealing cover and the wiring cavity; the lower portion of the body is provided with a heat radiation cavity composed of installation edges and side edge strips, with the side edge strips being connected with the installation edges and the body; the front ends of the metal sheets extend out from the body to the interior of the wiring cavity to form lead wire terminals; and the installation edges extend to the lower portion of the wiring cavity. The solar energy photovoltaic assembly conjunction box is an integral body formed by the body, the electric portion, the wiring cavity, and the heat radiation cavity via integral injection molding, featuring simple technology, low manufacturing cost, small size, sound heat radiation property, high current bearing capability, great waterproof and dirt resistance performance, and long service lifetime.
Description
Technical field
The utility model relates to a kind of solar photovoltaic generation system parts, especially relates to a kind of solar photovoltaic assembly terminal box of integral molded plastic formula.
Background technology
The solar photovoltaic assembly terminal box is a vitals in the solar photovoltaic generation system, is between the solar cell array of solar module formation and the connector between the rechargeable solar battery control device.Existing solar photovoltaic assembly terminal box adopts the split-type structural up and down of box body, lid usually, and more components and parts are installed in terminal box, and mainly there is following point in it:
1, technology is loaded down with trivial details, and manufacturing cost is high.
Because parts are very many, need to accomplish a complete terminal box through follow-up assembling, parts are made the process and assemble trouble, and technology is quite loaded down with trivial details, is not easy to automated production, and manufacturing cost is high.
2, volume is big, and heat dispersion is poor.
Existing terminal box generally all is provided with metal terminal, and heat dispersion is poor, and there is cavity in inside, can only be through the cross-ventilation heat radiation, and radiating effect is not good, even inner the heat radiation through the casting glue mode can not be obtained more satisfactory effect; Simultaneously, consider reasons such as heat radiation, electric clearance, the volume ratio of terminal box is bigger, not only structurally more complicated, in use damage easily.In addition, because the terminal box heat radiation is bad, causes that the phenomenon that terminal box is burnt occurs repeatedly, even photovoltaic system is caused huge harm.
3, useful life is short.
After existing terminal box opens the lid; Inner components and parts are directly exposed in the air; The easy corrosion oxidation of metal section and part of components and parts such as electrical equipment terminal, diode, cable in use, the working of plastics easy ageing, thus shortened useful life of terminal box greatly.
4, current carrying capacity is poor.
Existing terminal box, the diode between the electrical equipment terminal is generally the tubulose diode, and pin is tiny, and current carrying capacity is poor.Busbar adopts clamped-in style to connect with each input of corresponding electrical equipment terminal mutually, though assembly manipulation is quick, owing to contact connection for line between the conductor; Conductive area is little, and contact resistance is big, and connects reliable inadequately; Come in contact easily bad, come off phenomenons such as paradoxical discharge.In use, because current carrying capacity is not strong, power consumption is big, and terminal box might be breakdown or be burnt under the circumstances of HTHP.
5, water proof and dust proof poor performance.
Because the environment for use requirement, the water proof and dust proof performance is the important indicator of terminal box performance.The variation of terminal box infiltration or electric clearance; Can cause terminal box adverse effects such as components and parts paradoxical discharge, insulation breakdown, short circuit in use to occur; Causing that terminal box is damaged burns, and more likely burns assembly and other components and parts of being connected with terminal box, causes serious economy loss.For the cable part, generally all be to seal with sealing nut, in long-term use, sealing nut selects improper owing to material or reasons such as materials are impure, internal stress release, external force collision can cause season cracking, the water proof and dust proof decreased performance; Secondly, for box portion, existing junction box structure be about split-type structural; Aperture area is bigger, and planform is complicated, this just contraction distortion easily in injection moulding process of lid and box body; And the large area to moldings residualinternal stress is also bigger, long-term use under hot and humid environment, and terminal box expanded by heating inequality can be more prone to distortion; Such as the lid warpage occurring, bulge, bare phenomenons such as mouth, and then influenced the water proof and dust proof performance.Aqueous vapor, fine impurity particle etc. will can directly contact with components and parts behind the entering box body than being easier to get into box body, cause serious security incident.
The utility model content
The applicant has carried out research and has improved to above-mentioned problem, and a kind of solar photovoltaic assembly terminal box is provided, and technology is simple, low cost of manufacture, and volume is little, perfect heat-dissipating, current carrying capacity is strong, and the water proof and dust proof performance is good, long service life.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of solar photovoltaic assembly terminal box comprises electrical part, and said electrical part comprises one group of sheet metal and be connected the diode between said sheet metal, and cable connects said electrical part, and the link injection moulding of said electrical part and cable is encapsulated in the body; Said body front side is provided with the wiring cavity, and said wiring cavity is provided with seal cover, is provided with sealing ring between seal cover and the wiring cavity; Said body below is provided with heat-dissipating cavity, and said heat-dissipating cavity constitutes by limit and side strip are installed, and said side strip connects said installation limit and said body; The front end of said sheet metal extends formation lead end in said body to the said wiring cavity, and said installation limit extends to said wiring cavity below.
Further:
Said body, electrical part, wiring cavity and heat-dissipating cavity injection moulding are as a whole.
The bottom surface on said installation limit is provided with groove.
Said sheet metal extends the radiating part of one.
Said sheet metal is a copper sheet.
Said diode is a chip diode.
Said diode is arranged on the inboard of said heat-dissipating cavity.
The link of said cable is covered with metal clip.
The technique effect of the utility model is:
1, technology is simple, low cost of manufacture.Entire product is hermetically sealed injection mo(u)lding, and parts are considerably less, makes easy to processly, and technological procedure is simple, shortens the production cycle greatly, and is convenient to automated production processing, does not need the lot of manpower and material resources input, saves production cost.
2, volume is little, perfect heat-dissipating.Entire product adopts hermetically sealed injection mo(u)lding, and inside does not have vacant cavity, and compact conformation is reasonable, and volume is little, and large-area sheet metal is provided with radiating part, helps conduction current and heat radiation, has selected chip diode simultaneously for use, has increased the reliability of heat radiation.Owing to be integrated through injection molding formula structure, inside does not have cavity to exist, and the heat that sheet metal, diode produce can in time be passed to surface and quick heat radiating through plastic material; Simultaneously; The heat-dissipating cavity structure helps more that circulation of air is smooth and easy, and upper and lower surfaces dispels the heat simultaneously, and heat radiation is in time convenient.
3, current carrying capacity is strong.The sheet metal material is a copper material, and the big impedance of copper sheet area is little, and conductance is good; Diode is SMD; Be connected for soldering between diode and the copper sheet; Contact area is big between diode pin and the copper sheet, and current carrying capacity is able to strengthen, and the power loss of terminal box self reduces; High pressure resistant and conductive capability is strengthened, and helps to improve the stability and the photoelectric conversion efficiency of whole photovoltaic system.
4, the water proof and dust proof performance is good, long service life.Sheet metal, diode, the injection moulding of cable link are packaged into as a whole; Make components and parts and air isolated; Components and parts are played a very good protection; Aqueous vapor dust is difficult to get into the body interior of terminal box, avoids occurring burning because of phenomenons such as components and parts paradoxical discharge, insulation breakdown, short circuit cause the terminal box damage, has prolonged the useful life of terminal box.
Description of drawings
Fig. 1 is the three-dimensional structure sketch map (seal cover open mode) of the utility model.
Fig. 2 is the three-dimensional structure sketch map (comprising cable) of electrical part.
Fig. 3 is the utility model three-dimensional, exploded view.
Fig. 4 is the three-dimensional structure sketch map (seal cover closure state) of the utility model.
Fig. 5 is the three-dimensional structure sketch map (seal cover closure state) at another visual angle of the utility model.
Embodiment
Do further detailed explanation in the face of the embodiment of the utility model down.
Shown in Fig. 1 ~ 5, the utility model comprises electrical part 2, and electrical part 2 comprises one group of sheet metal 201 and is connected the diode 202 between the sheet metal 201; Cable 3 connects two sheet metals 201 of electrical part 2 both sides, and connected mode packs tightly cable 3 after can being bended by sheet metal 201 tail ends 205 of electrical part 2 left and right sides, and the quantity of sheet metal 201 and diode 202 is confirmed according to different requirement; In the present embodiment, electrical part 2 comprises 4 sheet metals 201 and is connected on 3 diodes 201 between 4 sheet metals 201 that sheet metal 201 is a copper sheet; Diode 202 is a chip diode; And sheet metal 201 extends the radiating part 203 of one, makes sheet metal 201 both as conductive component, again as thermal component; Enlarge area of dissipation, promote radiating effect.Link 301 injection mouldings of electrical part 2 and cable 3 are encapsulated in the body 1; The link 301 of cable 3 is covered with metal clip 302; Cable is connected with body 1 more firmly and has better sealing property, metal clip 302 is processed by the 08F steel band, and the cable crust is held tightly with metal clip 302 clampings; Metal clip 302 is combined closely with plastics during injection moulding; Cable is drawn when turning round by external force in the use, can external force be passed on the body 1 through metal clip 302, avoids cable 3 stressed with the junction of sheet metal 201.Body 1 front side is provided with wiring cavity 4; Wiring cavity 4 is provided with seal cover 5; Be provided with sealing ring 6 between seal cover 5 and the wiring cavity 4, the both sides of seal cover 5 are provided with snap close 501, and the both sides of wiring cavity 4 are provided with latch hook 401; Seal cover 5 tightly on wiring cavity 4, and is guaranteed the sealing of wiring cavitys 4 through snap close 501 and latch hook 401 lids by sealing ring 6.The front end of sheet metal 201 extends formation lead end 204 in body 1 to the wiring cavity 4.Body 1 below is provided with heat-dissipating cavity 7, and heat-dissipating cavity 7 constitutes by limit 701 and side strip 702 are installed, and side strip 702 connection limits 701 and body 1 constitute heat-dissipating cavity 7 like this below body 1, constitute ventilation and heat passage 703 between the side strip 702.Limit 701 is installed extends to wiring cavity 4 belows, after installing, wiring cavity 4 becomes the separate space of a sealing; In the present embodiment, diode 202 is arranged on the inboard of heat-dissipating cavity 7, and is as shown in Figure 5; After the injection moulding encapsulation, the position of parcel diode demonstrates three standing shape bulges, and bulge side and end face dispel the heat simultaneously; Thereby increased area of dissipation, air is from the bottom free flow of the face of parcel diode, and radiating effect is good; The bottom surface that limit 701 is installed is provided with groove 704 (Fig. 5), and in the time of on bonding terminal box to the solar components backboard, silica gel oozes in the groove 704, improves adhesive property.
Before the injection mo(u)lding; At first adopt automation to be welded on the sheet metal 201 diode 202, with afterbody 205 places of cable 3 cigarettes sheet metal 201 in the left and right sides, integral molded plastic is shaped to an integral body that is made up of body 1, electrical part 2, wiring cavity 4 and heat-dissipating cavity 7 then; Add sealing ring 6 and cover seal cover 5 and be complete terminal box product; Do not need following process, technology is simple, and reduces manufacturing cost.
The installation connection box is to the solar components backboard the time; On the bottom surface that limit 701 is installed, coating silica gel can be bonded on the solar panel securely; And busbar on lead end 204 and the solar components backboard welded mutually; Add sealing ring 6 and cover the installation that seal cover 5 is promptly accomplished terminal box, efficient and convenient.
In the utility model, electric components injection moulding encapsulation, electric better with water resistance, product size is little, can reduce production costs.
Claims (8)
1. solar photovoltaic assembly terminal box; It is characterized in that: comprise electrical part; Said electrical part comprises one group of sheet metal and is connected the diode between the said sheet metal, and cable connects said electrical part, and the link injection moulding of said electrical part and cable is encapsulated in the body; Said body front side is provided with the wiring cavity, and said wiring cavity is provided with seal cover, is provided with sealing ring between seal cover and the wiring cavity; Said body below is provided with heat-dissipating cavity, and said heat-dissipating cavity constitutes by limit and side strip are installed, and said side strip connects said installation limit and said body; The front end of said sheet metal extends formation lead end in said body to the said wiring cavity, and said installation limit extends to said wiring cavity below.
2. according to the described solar photovoltaic assembly terminal box of claim 1, it is characterized in that: said body, electrical part, wiring cavity and heat-dissipating cavity injection moulding are as a whole.
3. according to the described solar photovoltaic assembly terminal box of claim 1, it is characterized in that: the bottom surface on said installation limit is provided with groove.
4. according to the described solar photovoltaic assembly terminal box of claim 1, it is characterized in that: said sheet metal extends the radiating part of one.
5. according to claim 1 or 4 described solar photovoltaic assembly terminal boxes, it is characterized in that: said sheet metal is a copper sheet.
6. according to the described solar photovoltaic assembly terminal box of claim 1, it is characterized in that: said diode is a chip diode.
7. according to claim 1 or 6 described solar photovoltaic assembly terminal boxes, it is characterized in that: said diode is arranged on the inboard of said heat-dissipating cavity.
8. according to the described solar photovoltaic assembly terminal box of claim 1, it is characterized in that: the link of said cable is covered with metal clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202148594U CN202103607U (en) | 2011-06-23 | 2011-06-23 | Solar energy photovoltaic assembly conjunction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202148594U CN202103607U (en) | 2011-06-23 | 2011-06-23 | Solar energy photovoltaic assembly conjunction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103607U true CN202103607U (en) | 2012-01-04 |
Family
ID=45389604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202148594U Expired - Fee Related CN202103607U (en) | 2011-06-23 | 2011-06-23 | Solar energy photovoltaic assembly conjunction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202103607U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263148A (en) * | 2011-06-23 | 2011-11-30 | 无锡国盛精密模具有限公司 | Junction box of solar photovoltaic module |
| CN102723391A (en) * | 2012-05-25 | 2012-10-10 | 高密星合电子有限公司 | Photovoltaic wiring device |
| CN104362132A (en) * | 2014-09-28 | 2015-02-18 | 四川广义微电子股份有限公司 | Chip package assembly |
-
2011
- 2011-06-23 CN CN2011202148594U patent/CN202103607U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102263148A (en) * | 2011-06-23 | 2011-11-30 | 无锡国盛精密模具有限公司 | Junction box of solar photovoltaic module |
| CN102723391A (en) * | 2012-05-25 | 2012-10-10 | 高密星合电子有限公司 | Photovoltaic wiring device |
| CN104362132A (en) * | 2014-09-28 | 2015-02-18 | 四川广义微电子股份有限公司 | Chip package assembly |
| CN104362132B (en) * | 2014-09-28 | 2015-10-28 | 四川广义微电子股份有限公司 | Chip package |
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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: 20120104 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |