CN205336221U - Terminal box and photovoltaic module - Google Patents
Terminal box and photovoltaic module Download PDFInfo
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- CN205336221U CN205336221U CN201620031099.6U CN201620031099U CN205336221U CN 205336221 U CN205336221 U CN 205336221U CN 201620031099 U CN201620031099 U CN 201620031099U CN 205336221 U CN205336221 U CN 205336221U
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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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Abstract
The utility model relates to a terminal box, include: the casing, connecting terminal, extraction electrode, and the electricity connect in just be located between connecting terminal and the extraction electrode circuit main part unit in the casing, connecting terminal include the outer section of company be connected with photovoltaic layer casting die electricity and with the interconnection section of circuit main part unit connection, the bottom surface is equipped with the messenger the section of company is in outward bottom surface department and photovoltaic layer casting die be electric be connected dodge the hole. Above -mentioned terminal box adopts unique design, and when the electricity was connected, the gravity of dependence terminal box self firmly supported the pressure together with connecting terminal's the outer section of company and the electrode portion of photovoltaic layer casting die to form good contact surface, thereby improve the quality that the electricity is connected, and then improve photovoltaic module's the electric steadiness of connecting. The utility model also provides a photovoltaic module.
Description
Technical field
This utility model relates to photovoltaic cell technical field, particularly relates to a kind of rosette and photovoltaic module。
Background technology
At present, in photovoltaic module, rosette is generally with the connected mode of photovoltaic laminate, being coated with photovoltaic laminate stannum copper strips bending and piercing into rosette from the side of rosette, then rosette is bonded on the backboard of photovoltaic laminate, again successively with electric cautery, it is welded in being coated with stannum copper strips on the solder joint in rosette。
But above-mentioned connected mode, during due to welding, the painting stannum copper strips of bending has elastic force, it is easy to causing rosin joint, welding quality risk is at a relatively high。Rosin joint has become one of photovoltaic module main flow fault now。Therefore need rosette in solution photovoltaic module badly and electrically connect unsteady problem with photovoltaic laminate。
Utility model content
Based on this, it is necessary to electrically connect unsteady problem with photovoltaic laminate for rosette in existing photovoltaic module, it is provided that a kind of easily consolidate the rosette electrically connected with photovoltaic laminate。
A kind of rosette, including:
Housing, including the upper capping being oppositely arranged and bottom surface；
Connect terminal, be used for electrically connecting photovoltaic laminate；
Extraction electrode, for extending electric current outside described housing；
And main circuit body unit, it is electrically connected between described connection terminal and extraction electrode and is positioned at described housing；
Described link attached bag is drawn together and the outer section of company of photovoltaic laminate electrical connection and the section of company in being connected with described main circuit body unit；
Described bottom surface is provided with and makes described outer even section dodge hole what described bottom surface place electrically connected with photovoltaic laminate。
Above-mentioned rosette, adopt unique design, the outer section of company making connection terminal is positioned near bottom surface, and make outer even section electrically connect with photovoltaic laminate at bottom surface place, so when electrical connection, rely on the gravity of rosette self, together with firmly outer the and section of connection terminal being pressed on the electrode portion of photovoltaic laminate, thus forming good contact surface, thus improving the quality of electrical connection, and then improve the electrical connection steadiness of photovoltaic module。
Wherein in an embodiment, described connection terminal extends housing from bottom surface, and makes described outer even section be positioned at outside described housing。
Wherein in an embodiment, described outer even section is with described interior even section is parallel, and described connection terminal also includes at described outer even section and described interior even bending section between section。
Wherein in an embodiment, described outer even section is not overlapping with described interior company section in the orthographic projection of described interior even section。
Wherein in an embodiment, described outer company section is least partially overlapped in orthographic projection and the described interior company section of described interior even section。
Wherein in an embodiment, described connection terminal is positioned at described housing, and described outer even section and described hole of dodging are correspondingly arranged。
This utility model additionally provides a kind of photovoltaic module。
A kind of photovoltaic module, including photovoltaic laminate and the rosette that electrically connects with described photovoltaic laminate；Wherein, described photovoltaic laminate is photovoltaic laminate provided by the utility model。
Above-mentioned photovoltaic module, owing to adopting photovoltaic laminate provided by the utility model, so when electrical connection, rely on the gravity of rosette self, together with firmly outer the and section of connection terminal being pressed on the electrode portion of photovoltaic laminate, thus forming good contact surface, thus improving the quality of electrical connection, and then improve the electrical connection steadiness of photovoltaic module。
Wherein in an embodiment, described photovoltaic laminate includes the transparent cover plate, the first sealant, battery lamella, the second sealant and the backboard that are sequentially laminated；Described battery lamella includes the cell piece of some connections and is connected electrically in the convergent belt on described cell piece；Offering electrode exposed hole on described backboard, described electrode exposed hole runs through described backboard and the second sealant and makes convergent belt spill。
Wherein in an embodiment, described rosette is electrically connected by laser weld with described photovoltaic laminate。
Wherein in an embodiment, described rosette is electrically connected by conducting resinl with described photovoltaic laminate。
Accompanying drawing explanation
Fig. 1 is the schematic rear view of the rosette of the photovoltaic module of this utility model one embodiment。
Fig. 2 is the schematic top plan view after removing upper cover of the rosette in Fig. 1。
Fig. 3 is the side view connecting terminal of the rosette in Fig. 1。
Fig. 4 is the side view connecting terminal of another embodiment of this utility model。
Fig. 5 is the schematic top plan view of the photovoltaic laminate of this utility model one embodiment。
Fig. 6 is the partial enlarged drawing at A place in Fig. 5。
Fig. 7 is the partial cutaway schematic at the electrode exposed hole place of the photovoltaic laminate in Fig. 5。
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model。
Referring to Fig. 1-2, the rosette 200 of this utility model one embodiment, comprising: housing 220, connect terminal 210, extraction electrode 240 and main circuit body unit 270。
Wherein, the Main Function of housing 220 is to house and support to connect terminal 210, extraction electrode 240 and main circuit body unit 270。Specifically, housing 220 includes the upper capping 221 and the bottom surface 222 that are oppositely arranged。More specifically, housing 220 is made up of the upper casing fastened up and down and lower casing, what be substantially is square。It is understood that housing 220 is not limited to above-mentioned form。
Wherein, the Main Function of extraction electrode 240 is, for being drawn outside housing 220 by electric current, so that rosette 200 is connected with the device outside photovoltaic module。Extraction electrode 240 concrete structure, it is possible to adopt various structure known in those skilled in the art, do not repeat them here！
Wherein, main circuit body unit 270 is the core component of rosette 200。Main circuit body unit 270 is in housing 220 and is electrically connected between connection terminal 210 and extraction electrode 240。Those skilled in the art according to the difference of practical situation, can design different main circuit body units 270。
Wherein, the Main Function connecting terminal 210 is to be used for electrically connecting photovoltaic laminate。The electric current drawn from photovoltaic laminate is connected terminal 210 and leads to the external world from extraction electrode 240 after main circuit body unit 270。In the present embodiment, the number connecting terminal 210 is identical with the number of the electrode exposed hole of photovoltaic laminate, is specially 4。
In conjunction with Fig. 2 referring to Fig. 3, connect the section of company 213 in terminal 210 includes the outer section of company 211 with photovoltaic laminate 100 electrical connection and is connected with main circuit body unit 270。Accordingly, offer in the bottom surface 222 of housing 220 and make what outer even section 211 electrically connected with photovoltaic laminate at bottom surface place to dodge hole (not shown)。
With continued reference to Fig. 1, in the present embodiment, connect terminal 210 and extend housing 220 from dodging hole, and the section of company 211 is positioned at outside housing 220 outward。As such, it is possible to outer even section 211 is connected with photovoltaic laminate。
Referring to Fig. 3, specifically, connecting terminal 210 lamellar in bending, outer even section 211, with interior even section 213 is parallel, connects terminal 210 and also includes at outer even section 211 and the interior bending section 212 connected between section 213。So, when rosette 200 is connected with photovoltaic laminate, under the effect of rosette 200 self gravitation, bending section 212 makes connection terminal 210 have certain pressure elastic force, and pressure elastic force can make outer even section 211 better electrically connect with photovoltaic laminate。
More specifically, the outer section of company 211 is not overlapping with interior company section 213 in the orthographic projection of interior even section 213。On the bearing of trend of interior even section 213, it is bent to form bending section 212 it is to say, connect terminal 210, then proceedes to extend to form outer even section 211 along the bearing of trend of interior even section 213。
Certainly, the concrete structure connecting terminal 210 is not limited to said structure, it is also possible to be other structure。Such as, the connection terminal 210 shown in Fig. 4, section of company 211 is least partially overlapped in orthographic projection and the interior company section 213 of interior even section 213 outward for it；It is to say, connect terminal 210 in N shape, connect terminal 210 inflection on the bearing of trend of interior even section 213 and form bending section 212, then proceed to extend to form outer even section 211 along the bearing of trend of interior even section 213。Again such as, bending section 212 is replaced by flat segments, say, that flat segments is both perpendicular to outer even section 211 and interior even section 213。Further for example, it is T-shaped to connect terminal, its top part sidewards is connected with main circuit body unit 270, and the lower end of its underpart vertical portion is extended from housing, is connected with the convergent belt of photovoltaic laminate。
Certainly, connect terminal 210 and be not limited to above-mentioned form, it is also possible to being positioned at housing 220, outer even section 221 is correspondingly arranged with dodging hole, and the outer section of company 221 of rosette is electrically connected with photovoltaic laminate by intermediate electrical connectors (such as conducting resinl)。
Above-mentioned rosette, adopt unique design, the outer section of company making connection terminal is positioned near bottom surface, and make outer even section electrically connect with photovoltaic laminate at bottom surface place, so when electrical connection, rely on the gravity of rosette self, together with firmly outer the and section of connection terminal being pressed on the electrode portion of photovoltaic laminate, thus forming good contact surface, thus improving the quality of electrical connection, and then improve the electrical connection steadiness of photovoltaic module。
This utility model additionally provides a kind of photovoltaic module。
A kind of photovoltaic module, including photovoltaic laminate and the rosette that electrically connects with photovoltaic laminate；Wherein, rosette is rosette provided by the utility model。
Referring to Fig. 5-6, the photovoltaic laminate 100 in the present embodiment, including transparent cover plate the 110, first sealant 120 being sequentially laminated, battery lamella the 130, second sealant 140 and backboard 150。
Wherein, battery lamella 130 includes some connections cell piece 133 and the convergent belt 131 being connected electrically on cell piece 133。The concrete structure of cell piece 133 can adopt various structure known in those skilled in the art, does not repeat them here！Convergent belt 131 is also not limited to the linear shown in figure, it is possible to be other point, line, surface, for instance as the circuit structure of pcb board。
Wherein, the Main Function of transparent cover plate 110 is to be encapsulated by cell piece 133, simultaneously works as the effect of printing opacity。Specifically, transparent cover plate 110 is preferably glass cover-plate, more preferably safety glass cover plate。
Wherein, the Main Function of the first sealant 120 and the second sealant 140 is, by cell piece 133 fixing seal between transparent cover plate 110 and backboard 150。In the present embodiment, the first sealant 120 and the second sealant 140 are ethylene-vinyl acetate copolymer layer (i.e. EVA layer)。Certainly, the first sealant 120 and the second sealant 140 are not limited to EVA layer, it is also possible to but other seals adhesive backers and makes。It is understood that the first sealant 120 and the second sealant 140 can adopt material of the same race, it is also possible to be unlike material。
Wherein, the Main Function of backboard 150 is that cell piece 133 plays protection and the effect supported。In the present embodiment, backboard 150 is polyvinyl fluoride backboard。It is understood that backboard 150 is not limited to polyvinyl fluoride backboard, it is also possible to be other backboard。Backboard 150 can be lamina, it is also possible to be composite layered plate。
In conjunction with Fig. 6 referring to Fig. 7, backboard 150 offering electrode exposed hole 101, electrode exposed hole 101 runs through backboard 150 and the second sealant 140, and spills convergent belt 101；It is to say, convergent belt 131 of the present utility model not extending out outside backboard 150, and it being under the second sealant 140, the part that convergent belt 131 is corresponding with electrode exposed hole 101 exposes the electrode forming photovoltaic laminate 100 from electrode exposed hole 101。In the present embodiment, the number of electrode exposed hole 101 is 4。
Specifically, electrode exposed hole 101 is formed by laser beam drilling。It is to say, after lamination, position suitable on backboard 150, utilize laser the second sealant 140 on convergent belt 131 and backboard 150 to be etched away, make convergent belt 131 expose。Laser beam drilling can ensure the cleaning of convergent belt 131 exposed portion, improves electrical connection quality。Formed it is understood that electrode exposed hole 101 is not limited to said method, it is also possible to be other method perforate。
In order to facilitate photovoltaic laminate 100 to electrically connect with rosette, the electrode exposed hole 101 in the present embodiment is square hole。It is understood that electrode exposed hole 101 is not limited to square hole, it is also possible to be the other shapes of hole such as circular hole, diamond hole。Preferably, the area of electrode exposed hole 101 is 56～64mm2。It should be understood that area herein refers to the electrode exposed hole 101 fretwork area on backboard 150 surface。Adopt the electrode exposed hole 101 of above-mentioned size, it is possible to be easy to the electrical connection of follow-up photovoltaic laminate 100 and rosette。
In order to reduce the perforate difficulty of electrode exposed hole 101 further, in the present embodiment, the width of convergent belt 131 is 5～7mm。Accordingly even when convergent belt 131 produces certain displacement when lamination, also ensure that convergent belt 131 is exposed by electrode exposed hole 101。
Referring to Fig. 1, Fig. 3 and Fig. 7, in photovoltaic module, the outer section of company 211 connecting terminal 210 is electrically connected by laser weld with convergent belt 131, that is, rosette 200 is electrically connected by laser weld with photovoltaic laminate 100。Those skilled in the art can according to the difference connecting terminal 210 and convergent belt 131 material, adjusting focal length and power, weld interval。Adopt laser weld, eliminate the solder (leaded argentiferous is containing scaling powder etc.) of common welding, not only reduce material variety, also protect environment, improve the competitiveness of product。
In photovoltaic module, it is not limited to said structure, it is also possible to be connect terminal to be electrically connected with photovoltaic laminate by conducting resinl。Specifically, solid-state conductive blob of viscose is placed in the electrode exposed hole of photovoltaic laminate 100 in 101, the height of conduction blob of viscose is more than the degree of depth of electrode exposed hole 101, then rosette 200 is placed on backboard 150, the outer section of company 211 making connection terminal 210 is pressed on the end face of conduction blob of viscose, then heating conduction blob of viscose, the convergent belt 131 making photovoltaic laminate 100 bonds with conducting resinl and electrically connects, the outer section of company 211 connecting terminal 210 of rosette 200 bonds with conducting resinl and electrically connects, thus the outer section of company 211 connecting terminal 210 of the convergent belt 131 and rosette 200 realizing photovoltaic laminate 100 electrically connects。Can also being connect terminal T-shaped, the lower end of its underpart vertical portion be extended from housing 220, stretches in electrode exposed hole 101, and electrically connects with the convergent belt 131 of photovoltaic laminate 100。
Above-mentioned photovoltaic laminate adopts special design, being exposed by convergent belt by electrode exposed hole, it is not necessary to extended outside backboard by convergent belt, connecting outlet action so eliminating, thus avoiding because connecting, outlet is improper causes the hidden problem split of cell piece。Also, it should be noted connect outlet action to cause that the human configuration of lamination procedure accounts for whole more than the 30% of the informant person that produces, after omission connects outlet action, such that it is able to greatly reduce labor workload。Additionally, above-mentioned design need not seal laminate upper shed at backboard and second before making lamination, so the second sealant is excessive when avoiding lamination, thus avoiding because of the excessive fouling problems causing convergent belt welding region of the second sealant, improve the electrical connection quality of follow-up photovoltaic laminate and rosette；Also avoid and cause backboard dirty because the second sealant is excessive, decrease the workload of follow-up cleaning station；Also avoid laminating machine dirty, decrease cleaning frequency and the workload of laminating machine。Further, above-mentioned photovoltaic laminate saves the part that convergent belt stretches out outside backboard, saves the consumption of convergent belt；Do not stretch out outside laminate because of convergent belt, in production process (particularly transhipment), occur that cell piece hidden splits, the quality risk that breaks will greatly reduce。
Hereinafter the preparation method of above-mentioned photovoltaic laminate is illustrated。
The preparation method of a kind of photovoltaic laminate, it comprises the steps:
S1, by transparent cover plate, the first sealant, battery lamella, the second sealant and backboard lamination；Wherein, being laminated to known in those skilled in the art, those skilled in the art can be different according to practical situation, select suitable laminating technology。
Electrode exposed hole offered by S2, backboard after laminating, and makes electrode exposed hole run through described backboard and the second sealant, and spill convergent belt。
Wherein, the method that electrode exposed hole adopts laser beam drilling is offered。Those skilled in the art can pass through adjust the power of laser generator and catch location, removes the covering (backboard and the second sealant) on convergent belt。It is, of course, also possible to adopt alternate manner to offer electrode exposed hole。
The preparation method of above-mentioned photovoltaic laminate, is exposed convergent belt by electrode exposed hole, it is not necessary to extended outside backboard by convergent belt, connects outlet action so eliminating, thus avoiding because connecting, outlet is improper causes the hidden problem split of cell piece。Also, it should be noted connect outlet action to cause that the human configuration of lamination procedure accounts for whole more than the 30% of the informant person that produces, after omission connects outlet action, such that it is able to greatly reduce labor workload。It addition, above-mentioned preparation method, it is only necessary to perforate is once, it is not necessary to seals each perforate on laminate at backboard and second and once, is omitted a perforate action, simplifies step。
Above-mentioned photovoltaic module, when rosette electrically connects with photovoltaic laminate, need not rely on manpower or frock and will connect together with terminal is pressed on the convergent belt of photovoltaic laminate, rely on the gravity of rosette self, together with firmly outer the and section of connection terminal being pressed on the electrode portion of photovoltaic laminate, thus forming good contact surface, thus improving the quality of electrical connection, and then improve the electrical connection steadiness of photovoltaic module。It addition, be omitted the step manually adjusting convergent belt through rosette, save manpower further。
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded。
Embodiment described above only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope。It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model。Therefore, the protection domain of this utility model patent should be as the criterion with claims。
Claims (10)
1. a rosette, it is characterised in that including:
Housing, including the upper capping being oppositely arranged and bottom surface；
Connect terminal, be used for electrically connecting photovoltaic laminate；
Extraction electrode, for drawing electric current outside described housing；
And main circuit body unit, in described housing and be electrically connected between described connection terminal and described extraction electrode；
Described link attached bag is drawn together and the outer section of company of photovoltaic laminate electrical connection and the section of company in being connected with described main circuit body unit；
Described bottom surface offers and makes described outer even section dodge hole what described bottom surface place electrically connected with photovoltaic laminate。
2. rosette according to claim 1, it is characterised in that described connection terminal extends described housing from dodging hole, and described outer even section is positioned at outside described housing。
3. rosette according to claim 2, it is characterised in that described connection terminal is in the lamellar of bending, and described outer even section is with described interior even section is parallel, and described connection terminal also includes at described outer even section and the described interior bending section connected between section。
4. rosette according to claim 3, it is characterised in that described outer even section is not overlapping with described interior company section in the orthographic projection of described interior even section。
5. rosette according to claim 3, it is characterised in that described outer company section is least partially overlapped in orthographic projection and the described interior company section of described interior even section。
6. rosette according to claim 1, it is characterised in that described connection terminal is positioned at described housing, and described outer even section and described hole of dodging are correspondingly arranged。
7. a photovoltaic module, including photovoltaic laminate and the rosette that electrically connects with described photovoltaic laminate；It is characterized in that, described rosette is the rosette described in any one of claim 1-6。
8. photovoltaic module according to claim 7, it is characterised in that described photovoltaic laminate includes the transparent cover plate, the first sealant, battery lamella, the second sealant and the backboard that are sequentially laminated；
Described battery lamella includes the cell piece of some connections and is connected electrically in the convergent belt on described cell piece；
Offering electrode exposed hole on described backboard, described electrode exposed hole runs through described backboard and the second sealant and makes described convergent belt spill。
9. the photovoltaic module according to claim 7 or 8, it is characterised in that described rosette is electrically connected by laser weld with described photovoltaic laminate。
10. the photovoltaic module according to claim 7 or 8, it is characterised in that described rosette is electrically connected by conducting resinl with described photovoltaic laminate。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031099.6U CN205336221U (en) | 2016-01-13 | 2016-01-13 | Terminal box and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031099.6U CN205336221U (en) | 2016-01-13 | 2016-01-13 | Terminal box and photovoltaic module |
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| Publication Number | Publication Date |
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| CN205336221U true CN205336221U (en) | 2016-06-22 |
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| CN201620031099.6U Active CN205336221U (en) | 2016-01-13 | 2016-01-13 | Terminal box and photovoltaic module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768289A (en) * | 2018-08-10 | 2018-11-06 | 米亚索乐装备集成（福建）有限公司 | Photovoltaic junction box, photovoltaic module and photovoltaic junction box installation method |
| CN110611237A (en) * | 2019-09-30 | 2019-12-24 | 英利能源（中国）有限公司 | Connecting method and connecting structure of junction box wiring terminal and bus bar |
| WO2020030119A1 (en) * | 2018-08-10 | 2020-02-13 | 领凡新能源科技(北京)有限公司 | Photovoltaic junction box, photovoltaic assembly, and photovoltaic junction box installation method |
-
2016
- 2016-01-13 CN CN201620031099.6U patent/CN205336221U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768289A (en) * | 2018-08-10 | 2018-11-06 | 米亚索乐装备集成（福建）有限公司 | Photovoltaic junction box, photovoltaic module and photovoltaic junction box installation method |
| WO2020030119A1 (en) * | 2018-08-10 | 2020-02-13 | 领凡新能源科技(北京)有限公司 | Photovoltaic junction box, photovoltaic assembly, and photovoltaic junction box installation method |
| CN110611237A (en) * | 2019-09-30 | 2019-12-24 | 英利能源（中国）有限公司 | Connecting method and connecting structure of junction box wiring terminal and bus bar |
| CN110611237B (en) * | 2019-09-30 | 2021-11-19 | 英利能源（中国）有限公司 | Connecting method and connecting structure of junction box wiring terminal and bus bar |
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