CN108631724A - A kind of photovoltaic module - Google Patents
A kind of photovoltaic module Download PDFInfo
- Publication number
- CN108631724A CN108631724A CN201810669203.8A CN201810669203A CN108631724A CN 108631724 A CN108631724 A CN 108631724A CN 201810669203 A CN201810669203 A CN 201810669203A CN 108631724 A CN108631724 A CN 108631724A
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- wire connecting
- photovoltaic module
- connection jaws
- wire
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000004021 metal welding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- 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 invention discloses a kind of photovoltaic modulies, it include the tablet to photovoltaic generation, the back side of tablet is equipped with the first wire connecting portion and the second wire connecting portion, and the shell of the first wire connecting portion is equipped with the first connection jaws, and the second wire connecting portion is connected with the second connection jaws that can coordinate with the first connection jaws by conducting wire.A conducting wire is provided only in photovoltaic module, contact point in photovoltaic module can be reduced by reducing the quantity of conducting wire, and then reduce the contact resistance of photovoltaic module.Photovoltaic module internal resistance higher caused consumption generated output and heating problem are avoided, the performance of photovoltaic module is improved.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, more particularly to a kind of photovoltaic module.
Background technology
With being gradually increased for environmental requirement, photovoltaic generation has many advantages, such as pollution-free, sustainable, at low cost obtain because of it
Extensive use, the basic unit of photovoltaic generation are photovoltaic module, and photovoltaic module includes plate solar and photovoltaic junction box, too
For absorbing solar energy and being translated into electric energy, photovoltaic junction box is used for plate solar and other sun positive energy tablet
Tablet connection in series-parallel or itself and load can be connected.
The internal resistance of photovoltaic module is to restrict one of the element that photovoltaic module power is promoted, and the resistance of photovoltaic junction box is light
Lie prostrate the chief component of component internal resistance.Its temperature is up to 70 DEG C when photovoltaic module generates electricity, and the electric current in photovoltaic junction box is up to
9A, high resistance can cause photovoltaic junction box to generate heat, and generated output, especially photovoltaic junction box under high temperature environment is lost in photovoltaic module
Internal resistance further increase, cause calorific value excessive, in turn result in photovoltaic junction box connection metal oxidation, influence photovoltaic group
The service life of part.
Therefore, how to reduce the internal resistance of photovoltaic module is those skilled in the art's technical issues that need to address.
Invention content
The object of the present invention is to provide a kind of photovoltaic modulies, and resistance is smaller, and generated output is higher, and service life is longer.
To achieve the above object, the present invention provides a kind of photovoltaic module, includes the tablet to photovoltaic generation, the tablet
The back side be equipped with the first wire connecting portion and the second wire connecting portion, the shell of first wire connecting portion is equipped with the first connection jaws, described second
Wire connecting portion is connected with the second connection jaws that can coordinate with first connection jaws by conducting wire.
Preferably, it is equipped with the first diode in first wire connecting portion, the first connection gold is equipped in first connection jaws
Belong to, a pin of first diode connect metal welding with described first or is integrally formed；
The second diode, a pin of second diode and the one of the conducting wire are equipped in second wire connecting portion
End is connected, and the second connection metal is equipped in second connection jaws, and the other end of the conducting wire connect metal phase with described second
Even.
Preferably, the tablet include face glass, back glass and be located at the face glass and the back side glass
Cell piece between glass, to photovoltaic generation, first wire connecting portion are respectively positioned on the back glass with second wire connecting portion
Outside.
Preferably, there is pre-determined distance between first wire connecting portion and second wire connecting portion.
Preferably, there are two the perforative through-holes of through-thickness, the position of two through-holes to distinguish for the back glass tool
Corresponding with first wire connecting portion and second wire connecting portion, the pin of first diode and second diode is equal
It is connected with the cell piece by conductor wire.
Preferably, first connection jaws are mutually arranged backwards with second connection jaws.
Preferably, first wire connecting portion passes through sealant pouring and sealing with second wire connecting portion.
Preferably, first connection jaws are all made of MC4 connector standards with second connection jaws.
Photovoltaic module provided by the present invention includes tablet, the first wire connecting portion and the second wire connecting portion, the first wire connecting portion it is outer
Shell is equipped with the first connection jaws, and the second wire connecting portion is connected by conducting wire with the second connection jaws.A conducting wire is provided only in photovoltaic module,
The contact point in photovoltaic module can be reduced by reducing the quantity of conducting wire, and then reduce the contact resistance of photovoltaic module.Avoid light
Component internal resistance higher caused consumption generated output and heating problem are lied prostrate, the performance of photovoltaic module is improved.
In addition, having pre-determined distance between the first wire connecting portion and the second wire connecting portion, the length of conducting wire, one side energy can be shortened
Enough reduce conductor resistance, on the other hand photovoltaic module can be avoided to be wound because conducting wire is longer, and then avoids conducting wire outside
Power pull during caused by wire sheath rupture the problem of, improve the service life of conducting wire, improve the peace of photovoltaic module
Quan Xing.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of photovoltaic module provided by the present invention；
Fig. 2 is the structural schematic diagram of the first wire connecting portion；
Fig. 3 is the structural schematic diagram of the second wire connecting portion；
Fig. 4 is the schematic diagram that the first wire connecting portion is connect with the second wire connecting portion；
Fig. 5 is the schematic diagram of two photovoltaic modulies connection.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
It is the structural schematic diagram of photovoltaic module provided by the present invention to please refer to Fig.1 to Fig. 5, Fig. 1；Fig. 2 is the first wiring
The structural schematic diagram in portion；Fig. 3 is the structural schematic diagram of the second wire connecting portion；Fig. 4 is what the first wire connecting portion was connect with the second wire connecting portion
Schematic diagram；Fig. 5 is the schematic diagram of two photovoltaic modulies connection.
Photovoltaic module provided by the present invention, includes the tablet 1 to photovoltaic generation, and the back side of tablet 1 connects equipped with first
The shell 21 of line portion 2 and the second wire connecting portion 3, the first wire connecting portion 2 is equipped with the first connection jaws 22, and the second wire connecting portion 3 passes through conducting wire 32
It is connected with the second connection jaws 31 that can coordinate with the first connection jaws 22.
The function and circuit structure of first wire connecting portion 2 and the second wire connecting portion 3 can refer to split type photovoltaic in the prior art
Terminal box, core of the invention are that the first wire connecting portion 2 is directly connected with the first connection jaws 22, reduce conducting wire in photovoltaic module
Quantity, while reducing the quantity of circuit connection point, achieved the purpose that reduce photovoltaic module internal resistance.
First wire connecting portion 2 and second wire connecting portion 3, the first wire connecting portion 2 and second are typically provided on one flat plate 1
Wire connecting portion 3 can be connected by the modes such as being bonded or being bolted with tablet 1, the shell of the first connection jaws 22 and the first wire connecting portion 2
21 are fixedly connected, and the both ends of conducting wire 32 are connected with the second wire connecting portion 3 and the second connection jaws 31 respectively.
Optionally, existing photovoltaic electric wire connecting junction uses MC4 connectors, the first connection jaws 22 to be adopted with the second connection jaws 31 mostly
With MC4 connector standards, it can ensure that photovoltaic module provided by the present invention has higher versatility.
Specifically, the structure of the first wire connecting portion 2 and the second wire connecting portion 3 can refer to Fig. 2 and Fig. 3, it is equipped in the first wire connecting portion 2
First diode 23 is equipped with the first connection metal 24, a pin of the first diode 23 and the first company in first connection jaws 22
It connects the welding of metal 24 or is integrally formed；The second diode 33 is equipped in second wire connecting portion 3, being equipped with second in the second connection jaws 31 connects
Metal is connect, the first connection metal 24 and second connects metal and is also all made of MC4 connector standards, and concrete structure can refer to the prior art
In photovoltaic electric wire connecting junction, the both ends of conducting wire 32 connect metal with a pin of the second diode 33 and second and are connected respectively.When
Right user can also select the connector of other models as needed, not limit herein.
Multiple photovoltaic modulies are usually set in a row, to make full use of solar energy, photovoltaic module to be sequentially connected, form mutually string
The photovoltaic generation unit of connection, the connection type of photovoltaic module is as shown in Figure 4 and Figure 5, the first connection jaws 22 of a photovoltaic module
It is connected with the second connection jaws 31 of the photovoltaic module close to its first connection jaws 22, multiple photovoltaic modulies connect successively in this way
It connects.
It should be noted that the polarity for the pin that the first connection metal 24 is connected with conducting wire 32 is different, if first connects
It connects metal 24 with the positive pin of the first diode 23 to be connected, then it is that the cathode of the second diode 33 draws that conducting wire 32, which is connected,
Foot, the first connector is the anode of photovoltaic module at this time, and the second connector is the cathode of photovoltaic module；If opposite first connection
Metal 24 is connected with the negative pin of the first diode 23, conducting wire 32 connected be the second diode 33 positive pin, then
First connector is the cathode of photovoltaic module, and the second connector is the anode of photovoltaic module.
The effect of diode is to prevent reverse direction current flow in first wire connecting portion 2 and the second wire connecting portion 3.In addition, due to light
Volt component is generally disposed at outdoor, and the surface of tablet 1 may be covered by shade and generate hot plate effect, lead to flat-plate heating even
Damage, tablet 1 needs and diodes in parallel, avoids hot spot effect.Therefore the back side of tablet 1 is additionally provided with third diode, third
Diode is set in box body 4.
In the present embodiment, first connecting portion is directly connected with the first connector, and second connecting portion passes through with the second connector
Conducting wire 32 is connected, therefore a conducting wire is provided only in photovoltaic module, and single conductor photovoltaic module has many advantages, 32 both ends of conducting wire
It is connected with other elements, tie point has larger contact resistance, and conducting wire is less in photovoltaic module, can reduce photovoltaic module
Internal resistance；In addition, the positive and negative anodes of photovoltaic module are equipped with conducting wire in the prior art, two conducting wire Long Term Contacts, in the case of a high temperature
It can cause wire sheath aging, so that insulation sheath is had and puncture risk, photovoltaic module is provided only with a conducting wire in the present embodiment, can
The problems caused by being wound to avoid all conducting wires；And single conductor structure can reduce conducting wire and cut and encapsulate generated damage
Consumption.
Specifically, tablet 1 include face glass 11, back glass 12 and positioned at face glass 11 and back glass 12 it
Between cell piece 13, as shown in Figure 1, cell piece 13 is respectively positioned on the back of the body to photovoltaic generation, the first wire connecting portion 2 and the second wire connecting portion 3
The outside of surface glass 12.Certainly can be respectively equipped between cell piece 13 and face glass 11 and back glass 12 front-sheet encapsulant layer 14 and
Back-sheet encapsulant layer 15.
The needs of tablet 1 are connected with the diode in the first wire connecting portion 2 and the second wire connecting portion 3, can will be produced by tablet 1
Electric current export, the tool of back glass 12 there are two the perforative through-hole of through-thickness, the position of two through hole respectively with the first wiring
Portion 2 and the second wire connecting portion 3 are corresponding, and the pin of the first diode 23 and the second diode 33 passes through conductor wire and cell piece 13
It is connected.
It should be noted that cell piece 13 be connected to do not connect with first metal 24 or second connect metal be connected draw
Foot.
The total length of conducting wire is longer in single photovoltaic module, and the resistance of all conducting be can not ignore, to shorten all conducting
Total length, there is pre-determined distance, 2 He of the first wire connecting portion on same photovoltaic module between the first wire connecting portion 2 and the second wire connecting portion 3
It is connected without going through conducting wire between second wire connecting portion 3, the first wire connecting portion 2 and the second wire connecting portion 3 only need to be with adjacent photovoltaic modulies
Connection, closer to the edge of 1 both sides of tablet, the photovoltaic module required conducting wire that is connected is got over for the first wire connecting portion 2 and the second wire connecting portion 3
Short, 2 and second wire connecting portion 3 of usual first wire connecting portion is located at 1/3 and 2/3 width of tablet 1, and certain user also can basis
It needs the first wire connecting portion 2 and the second wire connecting portion 3 being set to other positions, not limit herein.
Wires cross can cause mutual inductance, cause conductor overheating, to avoid wires cross in photovoltaic module, the first connection jaws 22
With the second connection jaws 31 mutually backwards to setting.
Since photovoltaic module is generally disposed at outdoor, cause photovoltaic module short-circuit to avoid it from penetrating into rainwater, the first wiring
Portion 2 and the second wire connecting portion 3 wrap up the circuit elements in the first wire connecting portion 2 and the second wire connecting portion 3 by sealant pouring and sealing by insulating cement
Part makes it completely cut off with external environment, avoids circuit element from being contacted with water, improve the safety of photovoltaic junction box.
In the present embodiment, the first wire connecting portion 2 and the second wire connecting portion 3 are located at the both sides of tablet 1, and have between the two pre-
If distance, the total length of conducting wire in single photovoltaic module can be shortened, and then reduce the resistance of single photovoltaic module, improve power generation
Efficiency.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Photovoltaic module provided by the present invention is described in detail above.Specific case used herein is to this hair
Bright principle and embodiment is expounded, the explanation of above example is only intended to help understand the present invention method and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
Claims (8)
1. a kind of photovoltaic module, which is characterized in that include the tablet (1) to photovoltaic generation, the back side of the tablet (1) is equipped with
The shell (21) of first wire connecting portion (2) and the second wire connecting portion (3), first wire connecting portion (2) is equipped with the first connection jaws (22), institute
It states the second wire connecting portion (3) and the second connection jaws (31) that can coordinate with first connection jaws (22) is connected with by conducting wire (32).
2. photovoltaic module according to claim 1, which is characterized in that be equipped with the one or two pole in first wire connecting portion (2)
It manages (23), the first connection metal (24), a pin of first diode (23) is equipped in first connection jaws (22)
It connect metal (24) welding with described first or is integrally formed；
In second wire connecting portion (3) be equipped with the second diode (33), a pin of second diode (33) with it is described
One end of conducting wire (32) is connected, and the second connection metal, the other end of the conducting wire (32) are equipped in second connection jaws (31)
Metal is connect with described second to be connected.
3. photovoltaic module according to claim 2, which is characterized in that the tablet tablet (1) include face glass (11),
Back glass (12) and between the face glass (11) and the back glass (12), to the battery of photovoltaic generation
Piece (13), first wire connecting portion (2) are respectively positioned on the outside of the back glass (12) with second wire connecting portion (3).
4. photovoltaic module according to claim 3, which is characterized in that first wire connecting portion (2) and second wiring
There is pre-determined distance between portion (3).
5. photovoltaic module according to claim 4, which is characterized in that there are two along thickness side for back glass (12) tool
To perforative through-hole, the position of two through-holes is opposite with first wire connecting portion (2) and second wire connecting portion (3) respectively
It answers, the pin of first diode (23) and second diode (33) passes through conductor wire and the cell piece (13) phase
Even.
6. according to the photovoltaic module described in claim 1 to 5 any one, which is characterized in that first connection jaws (22) with
Second connection jaws (31) are mutually backwards to setting.
7. photovoltaic module according to claim 6, which is characterized in that first wire connecting portion (2) and second wiring
Portion (3) passes through sealant pouring and sealing.
8. photovoltaic module according to claim 7, which is characterized in that first connection jaws (22) and second wiring
Mouth (31) is all made of MC4 connector standards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669203.8A CN108631724A (en) | 2018-06-26 | 2018-06-26 | A kind of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669203.8A CN108631724A (en) | 2018-06-26 | 2018-06-26 | A kind of photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108631724A true CN108631724A (en) | 2018-10-09 |
Family
ID=63688307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810669203.8A Pending CN108631724A (en) | 2018-06-26 | 2018-06-26 | A kind of photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108631724A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061694A (en) * | 2019-05-06 | 2019-07-26 | 晶科能源有限公司 | A kind of photovoltaic wire box and a kind of photovoltaic module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208545A (en) * | 2012-01-13 | 2013-07-17 | 比亚迪股份有限公司 | Solar cell module |
| CN203608153U (en) * | 2013-12-19 | 2014-05-21 | 新奥光伏能源有限公司 | Junction box of photovoltaic assembly, photovoltaic assembly and photovoltaic system |
| CN204156801U (en) * | 2014-09-10 | 2015-02-11 | 长江勘测规划设计研究有限责任公司 | The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected |
| CN205081754U (en) * | 2015-11-09 | 2016-03-09 | 张家港其辰光伏科技有限公司 | Solar module and solar electric system |
| CN208353289U (en) * | 2018-06-26 | 2019-01-08 | 浙江晶科能源有限公司 | A kind of photovoltaic module |
-
2018
- 2018-06-26 CN CN201810669203.8A patent/CN108631724A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208545A (en) * | 2012-01-13 | 2013-07-17 | 比亚迪股份有限公司 | Solar cell module |
| CN203608153U (en) * | 2013-12-19 | 2014-05-21 | 新奥光伏能源有限公司 | Junction box of photovoltaic assembly, photovoltaic assembly and photovoltaic system |
| CN204156801U (en) * | 2014-09-10 | 2015-02-11 | 长江勘测规划设计研究有限责任公司 | The photovoltaic module string autogamy cable connection structure that both positive and negative polarity same side output terminal is direct-connected |
| CN205081754U (en) * | 2015-11-09 | 2016-03-09 | 张家港其辰光伏科技有限公司 | Solar module and solar electric system |
| CN208353289U (en) * | 2018-06-26 | 2019-01-08 | 浙江晶科能源有限公司 | A kind of photovoltaic module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061694A (en) * | 2019-05-06 | 2019-07-26 | 晶科能源有限公司 | A kind of photovoltaic wire box and a kind of photovoltaic module |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |
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| RJ01 | Rejection of invention patent application after publication |