CN203788241U - Photovoltaic testing device - Google Patents
Photovoltaic testing device Download PDFInfo
- Publication number
- CN203788241U CN203788241U CN201420087197.2U CN201420087197U CN203788241U CN 203788241 U CN203788241 U CN 203788241U CN 201420087197 U CN201420087197 U CN 201420087197U CN 203788241 U CN203788241 U CN 203788241U
- Authority
- CN
- China
- Prior art keywords
- testing apparatus
- soldering
- tin layer
- photovoltaic
- photovoltaic testing
- 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
Links
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a photovoltaic testing device. The photovoltaic testing device comprises an IV tester and an assembly junction box, the IV tester is connected with the assembly junction box via an adapter, crossed wire connectors respectively connected with the IV tester and the assembly junction box are arranged in the adapter, the outside of the wire connectors is wrapped by a tin-soldering layer, and the outside of the tin-soldering layer is wrapped by an insulation tape layer. According to the photovoltaic testing device, resistance fluctuation brought by cable pulling can be effectively eliminated, and resistance change is prevented.
Description
Technical field
The utility model belongs to photovoltaic module test industry, is specifically related to power test end, i.e. a kind of photovoltaic testing apparatus in photovoltaic module production.
Background technology
In photovoltaic module power test, the lead-out wire of IV tester, need to connect an adapter again and be connected with the terminal box coupling of assembly, can carry out power test, and as terminal box adopts MC4 joint, IV tester lead-out wire also needs to connect MC4 joint.For the connected mode of IV tester connecting line and MC4 connecting line, in industry, adopt at present physics hinge joint always and operate at anchor point insulating tape canoe, connecting line adopts physics hinge joint each other, when the each test suite plug of operator joint, can draw the tie point of disturbance to this hinge joint, have influence on the porousness of this hinge joint effect, cause this anchor point resistance to have fluctuation, thereby make this power loss variations, directly affect the Output rusults of component power, even same assembly, the operator plug of same position connects twice, respectively component power is tested, still can find that power deviation is larger, because component power test is a setting that required precision is higher, larger power fluctuation is definitely unallowed.As current 156mm*156mm battery component operating current, in 8A left and right, affect anchor point resistance △ R=0.01 Ω if pull action in plug assembly, power test fluctuating range is △ Pmax=I2 △ R=8*8*0.01=0.64W.Visible size to power influences and the amplitude relation in direct ratio of anchor point resistance fluctuation, 0.01 Ω of fluctuation is a very little amount for example here, fluctuates larger, power influences amplitude is larger, linear.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of photovoltaic testing apparatus, can effectively stop the resistance fluctuation that pulling cables is brought, and can not cause resistance variations.
The problem existing for solving above-mentioned prior art, the technical scheme that the utility model is taked is: a kind of photovoltaic testing apparatus, comprise IV tester and assembly junction box, between described IV tester and assembly junction box, connect by adapter, the power lug that connects respectively IV tester and assembly junction box for intersecting in described adapter, power lug outer wrapping soldering-tin layer, described soldering-tin layer outer wrapping insulating cement belt.
Further, described soldering-tin layer surface-brightening rounding, exposes without wire.
Further, described soldering-tin layer longitudinal length is consistent with power lug, and two ends and power lug justify align.
Further, described soldering-tin layer is 0.18-0.32cm.
Further, described insulating cement belt longitudinal length is longer than soldering-tin layer longitudinal length, and longitudinal center is consistent with the longitudinal center of soldering-tin layer.
Further, described insulating cement belt longitudinal length is than the long 0.6-2cm of soldering-tin layer longitudinal length.
Further, the layer 2-4 insulating tape that described insulating cement belt is attached most importance to folded.
Further, described adapter is provided with protection box outward.
Further, described protection box comprises upper cover and the lower cover of mutual fastening, and the relative both sides of described upper cover and lower cover intersection are respectively provided with semicircle wire casing, and described semicircle wire casing forms circle in the time fastening, and power lug can be snapped in to wire casing, further fixes.
Further, described semicircle wire casing is provided with rubber blanket, for cushioning the physical abrasion of the process of involving to power lug.
Photovoltaic testing apparatus described in the utility model uses scolding tin welding, makes this tie point density degree of tightness consistent, even if pull the cable on pad both sides, the resistance of this position can not change, the fluctuation that also just can not bring power.The method is improved, and can effectively stop the resistance fluctuation of the etween the lines tie point that pulling cables brings, and adopts welding manner simultaneously, makes the contact resistance of two cables less, reduces the impact of the extra string resistance increasing in module testing.
Brief description of the drawings
Fig. 1 is structural representation described in the utility model;
Fig. 2 is the structural representation of protection box described in the utility model;
Wherein: the 1st, IV tester, 2 assembly junction boxes, 3 power lugs, 4 soldering-tin layers, 5 insulating cement belts, 6 upper covers, 7 lower covers, 8 wire casings, 9 rubber blankets, 10 protection boxes.
Embodiment
Below in conjunction with embodiment, the utility model is elaborated.
Embodiment 1
A kind of photovoltaic testing apparatus as shown in Figure 1, comprise IV tester 1 and assembly junction box 2, between described IV tester 1 and assembly junction box 2, connect by adapter, the power lug that connects respectively IV tester and assembly junction box 3 for intersecting in described adapter, the soldering-tin layer 4 of power lug 3 outer wrapping 0.18 cm, described soldering-tin layer 4 outer wrapping insulating cement belts 5, described insulating cement belt 5 longitudinal lengths are than long 0.6 cm of soldering-tin layer 4 longitudinal lengths.Described insulating cement belt 5 is 2 layers of overlapping insulating tape.Described soldering-tin layer 4 surface-brightening roundings, expose without wire.Described soldering-tin layer 4 longitudinal lengths are consistent with power lug 3, and two ends and power lug 3 justify aligns.Described insulating cement belt 5 longitudinal lengths are longer than soldering-tin layer 4 longitudinal lengths, and longitudinal center is consistent with the longitudinal center of soldering-tin layer 4.
Embodiment 2
A kind of photovoltaic testing apparatus as depicted in figs. 1 and 2, comprise IV tester 1 and assembly junction box 2, between described IV tester 1 and assembly junction box 2, connect by adapter, the power lug that connects respectively IV tester and assembly junction box 3 for intersecting in described adapter, the soldering-tin layer 4 of power lug 3 outer wrapping 0.32 cm, described soldering-tin layer 4 outer wrapping insulating cement belts 5, described insulating cement belt 5 longitudinal lengths are than long 2 cm of soldering-tin layer 4 longitudinal lengths.Described insulating cement belt 5 is 4 layers of overlapping insulating tape.Described soldering-tin layer 4 surface-brightening roundings, expose without wire.Described soldering-tin layer 4 longitudinal lengths are consistent with power lug 3, and two ends and power lug 3 justify aligns.Described insulating cement belt 5 longitudinal lengths are longer than soldering-tin layer 4 longitudinal lengths, and longitudinal center is consistent with the longitudinal center of soldering-tin layer 4.Described adapter is provided with protection box 10 outward.Described protection box 10 comprises upper cover 6 and the lower cover 7 of mutual fastening, and described upper cover 6 is respectively provided with semicircle wire casing 8 with the relative both sides of lower cover 7 intersections, and described semicircle wire casing 8 forms circle in the time fastening, and power lug can be snapped in to wire casing 8, further fixes.Described semicircle wire casing 8 is provided with rubber blanket 9, for cushioning the physical abrasion of the process of involving to power lug.
The following is than the data analysis of testing apparatus on string resistance impact described in conventional physical hinge joint testing apparatus and embodiment 1:
1) first verify the overall stabilized intensity performance of IV tester self, operating type is the same chip module of follow-on test 20 times, assembly, wire and tester is not done to any touching and change during this time, and result is as shown in table 1:
Table 1 tester light stability is verified
Both follow-on test string resistance entirety 0.0056 Ω that floats, the power 0.544W that floats.
2) detect the impact of conventional physical hinge joint testing apparatus on module testing power and string resistance, connected mode is the hinge joint of connecting line physics, after adapter is connected with assembly, connector does not separate, follow-on test 20 times, this adapter tie point of disturbance during this period, result is as shown in table 2.
Table 2 connecting line hinge joint+disturbance adapter testing result
Can find out string resistance 0.021 Ω that floats, the power 1.112W that floats from numerical value.
3) impact of the testing apparatus described in detection embodiment 1 on module testing, after adapter is connected with assembly, adapter does not separate, follow-on test 20 times, this adapter of disturbance during this period, result is as shown in table 3.
Table 3 connecting line welding+disturbance adapter testing result
This connected mode string resistance deviation 0.012 Ω, the power 0.580W that floats.
Arrangement can obtain following information, as shown in table 4:
Table 4 organize your messages
Above data are visible, workshop normally produces, in assembly follow-on test process, in the inevitable situation of joint disturbance, testing apparatus described in embodiment 1 can improve its stability greatly, both the resistance of having gone here and there is floated less, and then power deviation is also relatively little, has embodied since then testing apparatus described in embodiment 1 good result with respect to conventional physical hinge joint testing apparatus.
Claims (10)
1. a photovoltaic testing apparatus, it is characterized in that, comprise IV tester and assembly junction box, between described IV tester and assembly junction box, connect by adapter, the power lug that connects respectively IV tester and assembly junction box for intersecting in described adapter, power lug outer wrapping soldering-tin layer, described soldering-tin layer outer wrapping insulating cement belt.
2. a kind of photovoltaic testing apparatus according to claim 1, is characterized in that, described soldering-tin layer surface-brightening rounding.
3. a kind of photovoltaic testing apparatus according to claim 2, is characterized in that, described soldering-tin layer longitudinal length is consistent with power lug, and two ends and power lug justify align.
4. a kind of photovoltaic testing apparatus according to claim 3, is characterized in that, described soldering-tin layer is 0.18-0.32cm.
5. a kind of photovoltaic testing apparatus according to claim 3, is characterized in that, described insulating cement belt longitudinal length is longer than soldering-tin layer longitudinal length, and longitudinal center is consistent with the longitudinal center of soldering-tin layer.
6. a kind of photovoltaic testing apparatus according to claim 5, is characterized in that, described insulating cement belt longitudinal length is than the long 0.6-2cm of soldering-tin layer longitudinal length.
7. a kind of photovoltaic testing apparatus according to claim 6, is characterized in that, the layer 2-4 insulating tape that described insulating cement belt is attached most importance to folded.
8. according to a kind of photovoltaic testing apparatus described in claim 1-7 any one, it is characterized in that, described adapter is provided with protection box outward.
9. a kind of photovoltaic testing apparatus according to claim 8; it is characterized in that; described protection box comprises upper cover and the lower cover of mutual fastening; the relative both sides of described upper cover and lower cover intersection are respectively provided with semicircle wire casing; described semicircle wire casing forms circle in the time fastening; power lug can be snapped in to wire casing, further fix.
10. a kind of photovoltaic testing apparatus according to claim 9, is characterized in that, described semicircle wire casing is provided with rubber blanket, for cushioning the physical abrasion of the process of involving to power lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087197.2U CN203788241U (en) | 2014-02-28 | 2014-02-28 | Photovoltaic testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087197.2U CN203788241U (en) | 2014-02-28 | 2014-02-28 | Photovoltaic testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203788241U true CN203788241U (en) | 2014-08-20 |
Family
ID=51324392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420087197.2U Expired - Fee Related CN203788241U (en) | 2014-02-28 | 2014-02-28 | Photovoltaic testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203788241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812443A (en) * | 2014-02-28 | 2014-05-21 | 张家港市互惠光电有限公司 | Photovoltaic testing device |
-
2014
- 2014-02-28 CN CN201420087197.2U patent/CN203788241U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812443A (en) * | 2014-02-28 | 2014-05-21 | 张家港市互惠光电有限公司 | Photovoltaic testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103884966A (en) | Power distribution network low-current single-phase earth fault positioning method based on neural network | |
| CN103163561A (en) | Cable path electriferous probing method and device | |
| CN103901318A (en) | Methods for locating ground faults and insulation degradation condition in energy conversion systems | |
| CN203788241U (en) | Photovoltaic testing device | |
| CN104111402B (en) | The Wiring detection method of the cross interconnected system of a kind of power cable and device | |
| CN103812443A (en) | Photovoltaic testing device | |
| CN202916307U (en) | Signal switching device for debugging and detection of electrical equipment | |
| CN204359820U (en) | A kind of cable auxiliary test unit | |
| CN210037946U (en) | Current measuring device based on TMR tunnel magnetic resistance | |
| CN203350393U (en) | Communication cable testing device | |
| CN104090169B (en) | A kind of measure the method for ground network ground resistance in domatic stratified soil structure | |
| CN103901327A (en) | Detection method used for partial discharge of 10KV distribution network XLPE cable | |
| CN102385024A (en) | Equipment and method for detecting ground point of machine winding | |
| CN202486270U (en) | Field partial discharge test circuit and system for high-voltage side lead-in cable of transformer | |
| CN204925247U (en) | Portable high tension cable cross -bonding system nuclear phase meter | |
| CN203673009U (en) | Detector for wheel-hub connector wire harness of wind generating set | |
| CN203283965U (en) | Instrument monitoring control box with cable reeling and unreeling function | |
| CN206773121U (en) | A kind of detection cable buzzer | |
| CN105259474A (en) | Online fault range finding method of T-connection cable | |
| CN206833970U (en) | A kind of lv power cable with protection copper strips | |
| CN203705579U (en) | Machine for detecting flexible printed circuit | |
| CN105021309A (en) | Spliced heatable high-precision distributed optical fiber temperature sensor | |
| CN109521328A (en) | A kind of matching net wire loss exception positions portable device | |
| CN204013396U (en) | A kind of photo-voltaic power supply header box device for detecting performance | |
| CN205484635U (en) | Automatic conduction testing of multichannel cable and test result transmission system with to mobile terminal function of charging |
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: 20140820 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |