CN202797033U - Photovoltaic counter current protector - Google Patents
Photovoltaic counter current protector Download PDFInfo
- Publication number
- CN202797033U CN202797033U CN201220413313.6U CN201220413313U CN202797033U CN 202797033 U CN202797033 U CN 202797033U CN 201220413313 U CN201220413313 U CN 201220413313U CN 202797033 U CN202797033 U CN 202797033U
- Authority
- CN
- China
- Prior art keywords
- base
- heat
- photovoltaic
- ceramic seat
- upper cover
- Prior art date
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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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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- Photovoltaic Devices (AREA)
Abstract
本实用新型公开了一种光伏逆流保护器，包括铝制的底座、上盖，在上盖盖在底座上后形成的腔体内，设有两个分别与电缆连接器的正极和负极相连的接线端子，两个接线端子通过阻流二极管电性连接，底座内表面卡设有陶瓷座，两个接线端子固定在陶瓷座上，陶瓷座上位于两个接线端子之间具有内凹弧面，阻流二极管的管体外圆面与所述内凹弧面相贴合，上盖内表面位于阻流二极管正上方设有隔热板，底座底面贴附有导热硅胶垫。本实用新型可使阻流二极管工作时产生的热量通过接线端子、陶瓷座、底座及导热硅胶垫，最终通过光伏组件的铝合金框快速散发出去，从而极大地提高了逆流保护器的散热性能，有利于延长光伏逆流保护器的使用寿命。
The utility model discloses a photovoltaic reverse current protector, which comprises an aluminum base and an upper cover. In the cavity formed after the upper cover is covered on the base, two wirings respectively connected with the positive pole and the negative pole of the cable connector are arranged. The two terminals are electrically connected by a blocking diode. The inner surface of the base is clamped with a ceramic seat. The two terminals are fixed on the ceramic seat. The ceramic seat is located between the two terminals and has a concave arc surface. The outer circular surface of the tube of the current-blocking diode fits with the concave arc surface, the inner surface of the upper cover is located directly above the current-blocking diode and is provided with a heat shield, and the bottom surface of the base is attached with a heat-conducting silica gel pad. The utility model can make the heat generated by the current blocking diode pass through the terminal, the ceramic seat, the base and the heat-conducting silica gel pad, and finally dissipate quickly through the aluminum alloy frame of the photovoltaic module, thereby greatly improving the heat dissipation performance of the reverse flow protector. It is beneficial to prolong the service life of the photovoltaic reverse current protector.
Description
Technical field
The utility model relates to the solar module technical field, especially a kind of photovoltaic reverse current protection device.
Background technology
In photovoltaic system, each branch road output voltage of series connection always has the poor of height, produces fault, shade such as a certain branch road and covers etc., and the output voltage of this branch road is reduced, and the electric current of high voltage branch road will flow to the low-voltage branch road.When square formation was not generated electricity, the electric current of storage battery flowed to assembly or square formation conversely for off-grid system, therefore avoided problems, and all series connection has access to the reverse current protection device in each branch road.At present; the case material of the used reverse current protection device of solar power system generally uses engineering plastics to make on the market; the reverse current protection device of this structure; the following defective of ubiquity: at first; the reverse current protection device is under the long-term work state; the diode of enclosure interior can produce a large amount of heat energy; heat is passed to housing by air transmitted in the housing and convection current; housing is again by conducting thermal release; but because the heat conductivility of air and plastics is poor; heat in the housing can not in time discharge; caused the temperature in the housing constantly to raise; so that at high temperature work and reduced useful life in the long-term place of choked flow diode, too high temperature has also been accelerated the distortion of housing and has been worn out simultaneously, has shortened the useful life of product.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, the photovoltaic reverse current protection device of a kind of perfect heat-dissipating, reliable and stable work is provided, prolong the useful life of photovoltaic reverse current protection device.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of photovoltaic reverse current protection device; the base that comprises aluminum; loam cake; in the cavity that after loam cake covers on base, forms; be provided with two binding posts that link to each other with the negative pole connector with anodal connector respectively; be electrically connected by choked flow diode between two binding posts; described base inner surface is arranged with ceramics seat; two binding posts are fixed on the ceramics seat; between two binding posts, has inner concave arc surface on the ceramics seat; body periphery and the described inner concave arc surface of choked flow diode fit; upper interior surface is provided with thermal insulation board directly over being positioned at choked flow diode, and base end face is pasted with the thermal conductive silicon rubber cushion.
Further, around ceramics seat, have eight feets of pushing down the ceramics seat edge in the described loam cake.
Be convenient perfusion photovoltaic sealing silica gel, described base back surface offers can inject the steam vent that is used for getting rid of inner air when sealing silica gel seals, strengthens the glue filling opening of heat-conducting effect and encapsulating to described cavity.
The beneficial effects of the utility model are: the utility model is bonded to each other with the inner concave arc surface of the body periphery of choked flow diode and ceramics seat; so that choked flow diode when work the heat maximum area that produces pass to ceramics seat and distribute by base; the thermal insulation board of upper interior surface setting can separate heat and loam cake; be unlikely to cause loam cake overheated and damage; the thermal conductive silicon rubber cushion that base end face attaches fits tightly with the aluminum alloy frame of photovoltaic module when mounted; so that the heat that choked flow diode when work produces is finally gone out by the aluminum alloy frame Quick diffusing; thereby greatly improved the heat dispersion of reverse current protection device, be conducive to prolong the useful life of photovoltaic reverse current protection device.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of looking up of Fig. 1.
Fig. 3 is the sectional structure schematic diagram of A-A among Fig. 1.
1. bases, 2. loam cakes, 3. anodal connector 4. negative pole connectors 5. binding posts 6. choked flow diodes 7. ceramics seats 71. inner concave arc surfaces 8. thermal insulation boards 9. thermal conductive silicon rubber cushions 10. feets 11. glue filling openings 12. air-vents 13. cables among the figure
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of photovoltaic reverse current protection device as shown in Figure 1 and Figure 2 comprises that the base 1, the fastening that adopt aluminium alloy to make are placed on the loam cake 2 on the base 1, and loam cake 2 is realized being connected and fixed by four countersunk head self-tapping screws that are positioned at four corners with base 1.
After loam cake 2 covers on base 1 in the formed cavity, base 1 inner surface is provided with a ceramics seat 7, there are two circular ports at ceramics seat 7 back sides, by the location and installation that realizes between ceramics seat 7 and the base 1 that cooperates between two cylinder salient points on two circular ports and the base 1, simultaneously, around ceramics seat 7, have eight feets 10 of pushing down ceramics seat 7 edges in the loam cake 2, to realize fitting tightly of ceramics seat 7 and base 1.Be fixed with two 5, two binding posts 5 of binding post that arrange with respect to base 1 Central Symmetry by cheese head screw on ceramics seat 7, one of them is connected with anodal connector 3 by cable 13, and another is connected with negative pole connector 4 by cable 13.Be provided with choked flow diode 6 between two binding posts 5, two pins of choked flow diode 6 and the bending leg on the binding post 5 are realized being electrically connected in the mode of scolding tin.Between two binding posts 5, has inner concave arc surface 71 on the ceramics seat 7, body periphery and the described inner concave arc surface 71 of choked flow diode 6 fit, when choked flow diode 6 work, the heat overwhelming majority that produces can be passed to by the body of choked flow diode 6 ceramics seat 7, the part heat is delivered to binding post 5 by choked flow diode 6 pins again in addition simultaneously, and then is delivered on the ceramics seat 7 by binding post 5.
A glue filling opening 11 and two steam vents 12 are arranged at base 1 back side, and when filling with photovoltaic sealing silica gel, glue is entered by glue filling opening 11, and inner air is discharged by two steam vents 12, realizes the sealed insulation of photovoltaic reverse current protection device inside cavity by encapsulating.
During installation; photovoltaic reverse current protection device is installed on the solar components aluminum alloy frame by the through hole that four M4 screws pass 1 four edges of base; thermal conductive silicon rubber cushion 9 with high-termal conductivity has guaranteed fitting tightly of base 1 and solar components aluminum alloy frame; when choked flow diode 6 work; the most of heat that produces can pass through binding post 5; ceramics seat 7; base 1; layer by layer transmission between the thermal conductive silicon rubber cushion 9; finally the aluminum alloy frame by solar components distributes; thereby greatly improved the heat dispersion of photovoltaic reverse current protection device; guarantee the normal operation of photovoltaic reverse current protection device, reached the prolongation photovoltaic reverse current protection device purpose in useful life.
Above-mentioned execution mode only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection range of the present utility model.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413313.6U CN202797033U (en) | 2012-08-21 | 2012-08-21 | Photovoltaic counter current protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413313.6U CN202797033U (en) | 2012-08-21 | 2012-08-21 | Photovoltaic counter current protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797033U true CN202797033U (en) | 2013-03-13 |
Family
ID=47824234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413313.6U Expired - Fee Related CN202797033U (en) | 2012-08-21 | 2012-08-21 | Photovoltaic counter current protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11689153B2 (en) | 2014-09-09 | 2023-06-27 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| US12519421B2 (en) | 2025-03-13 | 2026-01-06 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
-
2012
- 2012-08-21 CN CN201220413313.6U patent/CN202797033U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11689153B2 (en) | 2014-09-09 | 2023-06-27 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| US12015376B2 (en) | 2014-09-09 | 2024-06-18 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| US12015375B2 (en) | 2014-09-09 | 2024-06-18 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| US12407295B2 (en) | 2014-09-09 | 2025-09-02 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| US12519421B2 (en) | 2025-03-13 | 2026-01-06 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20200821 |