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WO2016188080A1 - Boîtier de raccordement pour ensemble photovoltaïque solaire - Google Patents

Boîtier de raccordement pour ensemble photovoltaïque solaire Download PDF

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Publication number
WO2016188080A1
WO2016188080A1 PCT/CN2015/096370 CN2015096370W WO2016188080A1 WO 2016188080 A1 WO2016188080 A1 WO 2016188080A1 CN 2015096370 W CN2015096370 W CN 2015096370W WO 2016188080 A1 WO2016188080 A1 WO 2016188080A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical connection
cavity
casing
bus bar
electrically connected
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.)
Ceased
Application number
PCT/CN2015/096370
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English (en)
Chinese (zh)
Inventor
邵名巍
王骏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu Top Solar Material Co Ltd
Original Assignee
Changshu Top Solar Material Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changshu Top Solar Material Co Ltd filed Critical Changshu Top Solar Material Co Ltd
Publication of WO2016188080A1 publication Critical patent/WO2016188080A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • 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

Definitions

  • the invention belongs to the technical field of solar cell modules, and in particular relates to a junction box for a solar photovoltaic module.
  • the junction box of the solar photovoltaic module is an important component of the output solar power source, and is a transition device for connecting the solar battery lead wire with the external lead wire, usually by a cover, a box base (also called a box body), and a bypass disposed in the box seat. Diode, wire and cable and conductive connection mechanism.
  • the aforementioned bypass diode functions to avoid reverse charging and damage the solar photovoltaic cell and prevent the normal operation of the entire solar photovoltaic cell module due to a short circuit of a solar photovoltaic cell.
  • Typical examples are: CN201639227U (junction box housing for solar photovoltaic modules), CN101944546B (solar photovoltaic module junction box), CN101442280A (solar photovoltaic module junction box), CN2716748Y (modified structure of solar module junction box), CN101138098A (solar module Junction box of output line and installation method of the junction box), CN200941388Y (solar photovoltaic power generation component junction box), CN201075856Y (new solar photovoltaic metal junction box), CN101286626A (solar photovoltaic metal junction box) and CN101459392A (for solar photovoltaic cell system) Junction box), and so on.
  • junction box Although it is not limited to the junction box involved in the patent solution exemplified above, it has positive significance for improving the heat dissipation effect, but it is still insufficient to meet the heat dissipation requirement of the bypass diode under high power and high current working conditions, because people dock
  • the design idea of the wire box has never been free from the shackles of the traditional design concept.
  • the so-called traditional design concept mainly manifests in the following factors: one is to select the material for making the junction box; the other is to form a reasonable heat dissipation on the junction box as much as possible. Channel (including vents); third is to explore the way and location of the three bypass diodes in the junction box.
  • the object of the present invention is to provide a solar energy for solar energy that can significantly improve the heat dissipation effect on the bypass diode, thereby adapting the bypass diode to the high-power and high-current requirements of the solar cell and facilitating the simplification of the structure.
  • Junction box for photovoltaic modules is to provide a solar energy for solar energy that can significantly improve the heat dissipation effect on the bypass diode, thereby adapting the bypass diode to the high-power and high-current requirements of the solar cell and facilitating the simplification of the structure.
  • the object of the present invention is to provide a junction box for a solar photovoltaic module, comprising a casing, an electrical connection mechanism disposed in the casing cavity of the casing and located on the casing cavity of the casing cavity, and is also disposed in the same a bypass diode in the body cavity and electrically connected to the electrical connection mechanism above the electrical connection mechanism and a box for mating with the housing for the electrical connection mechanism and the bypass diode disposed in the housing cavity a cover, wherein: the number of the electrical connection mechanism and the bypass diode disposed in the casing cavity of the casing is one, and the electrical connection in the casing cavity of two adjacent casings in use state The mechanism is electrically connected to each other by a pair of bus bars that are introduced into the cavity of the casing.
  • a bus bar introduction cavity for communicating the cavity of the casing with the outside is opened on the front side of the bottom plate of the casing corresponding to the casing cavity, and the bus bar is introduced into the cavity.
  • the casing cavity bottom plate forms a half-cut box cavity bottom plate, and the pair of bus bars are electrically connected to the electrical connection mechanism from the bus bar introduction cavity into the casing cavity, and the bypass diode has a pin and an electrical connection.
  • the foot, the pin and the electrical connection leg are electrically connected to the electrical connection mechanism.
  • a first electrical connection plate positioning post and a second electrical connection plate positioning post protruding from an upper surface of the bottom surface of the casing cavity are formed on the bottom plate of the casing cavity; Electrical connection mechanism a first electrical connection board and a second electrical connection board, and a first electrical connection board positioning hole is formed on the first electrical connection board and at a position corresponding to the first electrical connection board positioning post, on the second electrical connection board And a second electrical connection board positioning hole is defined at a position corresponding to the second electrical connection board positioning post, the first electrical connection board positioning hole is matched with the first electrical connection board positioning column, and the second electrical connection board positioning hole and the first The second connecting plate is matched with the positioning post; the pin of the bypass diode is electrically connected to the first electrical connecting plate, and the electrical connecting leg of the bypass diode is electrically connected to the second electrical connecting plate; One of the pair of bus bars is electrically connected to the first electrical connection board, and the other of the pair of bus bars is electrically connected to the second electrical connection
  • a first bus bar electrical connection leg is formed at an end of the first electrical connection plate toward the bus bar introduction cavity, and the first bus bar electrical connection leg faces the confluence
  • the strip is introduced into the cavity, and one of the pair of bus bars is electrically connected to the first bus bar electrical connection leg; at the end of the second electrical connection plate that is introduced into the cavity toward the bus bar Forming a second bus bar electrical connection leg, the second bus bar electrical connection leg extending toward the bus bar introduction cavity and corresponding to the first bus bar electrical connection leg, the other of the pair of bus bars
  • the bus bar is electrically connected to the second bus bar electrical connection leg.
  • a first bus bar electrical connection hole is defined in the first bus bar electrical connection leg, and a first one is formed on the second bus bar electrical connection leg.
  • a two-bar electrical connection hole wherein one of the pair of bus bars is electrically connected to the first bus bar electrical connection leg at a position corresponding to the first bus bar electrical connection hole, and the pair of bus bars are The other bus bar is electrically connected to the second bus bar electrical connection leg at a position corresponding to the second bus bar electrical connection hole.
  • an electrically isolated flange is formed at a centered position of the side of the casing cavity toward the busbar introduction cavity, and the busbar introduction cavity faces the bottom of the casing cavity.
  • An electrical spacer is formed on one side and at a position corresponding to the electrical isolation flange, and the electrical isolation flange and the electrical spacer form a T-shaped position relationship with each other.
  • a casing buckle is formed on the outer walls of the left and right sides of the casing and at positions corresponding to each other, and on the inner walls of the left and right sides of the casing. And each of the positions corresponding to the buckle of the box body is configured with a cover card foot that cooperates with the buckle of the box body, and a through box is extended at the bottom of the box body and around the periphery of the box body. At the side of the drain stack, a gap is maintained between the bottom surface of the lid of the lid and the edge of the drain drain of the box.
  • a cable introduction positioning seat extends at a position of a lower left corner of the casing, and a cable introduction positioning cavity of the cable introduction positioning seat communicates with the casing cavity, and The current a cable clamp is disposed in the positioning cavity; a positioning cover is extended at a lower left corner of the cover and at a position corresponding to the cable introduction positioning seat, and the positioning cover and the cable are introduced into the positioning seat by the positioning cover The cable is introduced into the positioning cavity for the cooperation.
  • each of the left and right chamber walls of the casing cavity and the position corresponding to the bus bar introduction cavity are respectively formed with a glue-filling reference protruding from the surface of the cavity wall.
  • logo flange In still another specific embodiment of the present invention, each of the left and right chamber walls of the casing cavity and the position corresponding to the bus bar introduction cavity are respectively formed with a glue-filling reference protruding from the surface of the cavity wall.
  • a cable defining flange is formed on a bottom wall of the cavity into which the cable is introduced into the positioning cavity, and the cable clamp has a cable.
  • the pressure block cavity is formed with a cable limiting flange protruding from the surface of the top wall of the cavity on the top wall of the cavity of the cable block cavity.
  • the technical solution provided by the invention provides an electric connection mechanism and a bypass diode in a box body of a casing, so that the number of the casings seems to be increased, but the heat dissipation effect of the bypass diode can satisfy the solar photovoltaic cell direction.
  • the requirement of high power and large current direction development solves the contradiction between the heat dissipation of the box body and the bypass diode with high power and large current. Because the overall structure is concise, it can be easily manufactured and assembled quickly.
  • Figure 1 is a block diagram of an embodiment of the present invention.
  • FIG. 2 is a schematic view showing a pair of bus bars electrically connecting electrical connection mechanisms located in the casing cavities of two adjacent casings.
  • Figure 3 is a structural view of the casing between the two casings shown in Figure 2;
  • Figure 4 is a schematic view of the cable clamp of Figure 1 after being turned 180°.
  • the casing 1 is provided, and the electrical connection mechanism 2 disposed in the casing cavity 11 of the casing 1 and located on the casing cavity 111 of the casing cavity 11 is also disposed in the casing cavity 11. And a bypass diode 3 electrically connected to the electrical connection mechanism 2 above the electrical connection mechanism 2 and a matching with the casing 1 for shielding the electrical connection mechanism 2 and the bypass diode 3 provided in the casing chamber 11. Cover 4 for protection.
  • bypass diode 3 As shown in FIG. 1 and FIG. 2, the aforementioned bypass diode 3 is soldered and fixed to the electrical connection mechanism 2. Since the functions of the bypass diode 3 and the electrical connection mechanism 2 and the respective working principles are well known in the art, for example, reference can be made to the applicant. The patent documents mentioned in the above background art column are therefore not described again.
  • the technical point of the technical solution provided by the present invention is that the number of the electrical connection mechanism 2 and the bypass diode 3 disposed in the casing cavity 11 of the foregoing casing 1 is one, and in the state of use, the two adjacent casings 1 are The electrical connection mechanism 2 in the casing chamber 11 is electrically connected to each other by a pair of bus bars 5 (shown schematically in Fig. 2) introduced into the casing chamber 11. It can be seen that the number of the casings 1 in the actual use state of the present invention is three, and it seems that the junction box of the prior art is reduced to zero in order to increase the number of the casings 1 and possibly increase the manufacturing.
  • the increase in the number of the casings 1 is caused by the fact that the three bypass diodes 3 are disposed in one casing 1 in comparison with the prior art.
  • the present invention has the advantage that the prior art cannot be compared in terms of the cost of frequently replacing the entire casing 1 and, to a certain extent, the present invention overcomes the design bias of the prior art because The technical effects it produces are unpredictable in the prior art.
  • a bus bar introduction cavity 112 for communicating the casing cavity 11 with the outside is formed at a position corresponding to the front side of the casing cavity bottom plate 111 of the casing chamber 11, and the bus bar is introduced into the cavity 112.
  • the casing cavity bottom plate 111 is formed into a half-cut box cavity bottom plate (ie, a half-width bottom plate), and the pair of bus bars 5 are introduced into the casing cavity 11 from the bus bar introduction cavity 112 to be electrically connected to the electrical connection mechanism 2, and the bypass diode 3 is There are a pin 31 and an electrical connecting leg 32, both of which are electrically connected to the electrical connection mechanism 2.
  • a first electrical connection plate positioning post 1111 and a second electrical connection plate positioning post 1112 protruding from the upper surface of the casing cavity bottom plate 111 are formed on the foregoing casing cavity bottom plate 111;
  • the aforementioned electrical connection mechanism 2 includes The first electrical connection board 21 (also referred to as a metal conductive sheet, the same applies hereinafter) and a second electrical connection board 22 (also referred to as a metal conductive sheet, the same applies hereinafter) on the first electrical connection board 21 and corresponding to the first
  • a first electrical connection board positioning hole 211 is defined at a position of the electrical connection board positioning post 1111, and a second electrical connection board is disposed on the second electrical connection board 22 and at a position corresponding to the second electrical connection board positioning post 1112.
  • the hole 221, the first electrical connection plate positioning hole 211 is matched with the first electrical connection plate positioning post 1111 and is positioned on the first electrical connection plate positioning post 1111 by thermal fusion welding, and the second electrical connection plate positioning hole 221 and the second
  • the two electrical connection plate positioning posts 1112 are matched and positioned on the second electrical connection plate positioning post 1112 by heat fusion welding; one of the pair of bus bars 5 is electrically connected to the first electrical connection plate 21 Connection, and a pair of bus bars 5 Another bus bars electrically connected to the second link plate 22 electrically.
  • the aforementioned pin 31 of the bypass diode 3 is electrically connected to the first electrical connection plate 31 by soldering, and the aforementioned electrical connection leg 32 is also electrically connected to the second electrical connection plate 22 by soldering.
  • a first bus bar electrical connection leg 212 is formed, and the first bus bar electrical connection leg 212 is directed toward the bus bar into the cavity 112.
  • one of the pair of bus bars 5 is electrically connected to the first bus bar electrical connection leg 212; at the end of the second electrical connection plate 22 facing the bus bar introduction cavity 112, a second confluence is formed.
  • An electrical connection leg 222 extending in a direction toward the bus bar introduction cavity 112 and corresponding to the first bus bar electrical connection leg 212, the other of the aforementioned pair of bus bars 5 confluent The strip is electrically connected to the second bus bar electrical connection leg 222.
  • a first bus bar electrical connection hole 2121 is defined in the first bus bar electrical connecting leg 212, and a second bar electrical connection hole 2221 is defined in the second bus bar electrical connecting leg 222.
  • the foregoing one One of the bus bars 5 is electrically connected to the first bus bar electrical connection leg 212 at a position corresponding to the first bus bar electrical connection hole 21121, and the other of the pair of bus bars 5 is at The position corresponding to the second bus bar electrical connection hole 2221 is electrically connected to the second bus bar electrical connection leg 222.
  • an electrically isolated flange 113 is formed at a centered position of the side of the casing cavity bottom plate 111 facing the bus bar introduction cavity 112, and at the side of the bus bar introduction cavity 112 facing the casing cavity bottom plate 111 and at Corresponding to the position of the electrical isolation flange 113, an electrical isolation strip 1121 is formed.
  • the electrical isolation flange 113 and the electrical isolation strip 1121 form a T-shaped relationship with each other, that is, the electrical isolation strip 1121 is perpendicular to the electrical isolation flange 113, but both not in contact.
  • the electrically isolating flange 113 and the electrical insulation strip 1121 can prevent a pair of bus bars 5 from being able to cause abnormal electrical contact to cause a short circuit.
  • a casing buckle 12 is formed, and on the inner wall on the left and right sides of the casing 4 and in correspondence with the casing card
  • the positions of the buckles 12 each constitute a cover foot 41 which cooperates with the case buckle 12.
  • the box drain side 13 can also be referred to as a box drain skirt, which both contributes to ventilation and facilitates the aforementioned entry between the bottom surface 42 of the lid and the drain side 13 of the box.
  • the water in the gap mainly rainwater generated by precipitation weather
  • a tool such as a screwdriver is used to open the lid 4 at a position corresponding to the gap.
  • a cable introduction positioning seat 14 is extended at a position in the lower left corner of the casing 1.
  • the cable introduction positioning cavity 141 of the cable introduction positioning seat 14 communicates with the aforementioned casing cavity 11 and is disposed in the cable introduction positioning cavity 141.
  • the seat cover 43 shields the cable introduction positioning cavity 141 by the cooperation of the positioning seat cover 43 and the cable introduction positioning seat 14. In the state of use, the cable clamp 142 is fixed by ultrasonic welding to the cable introduction positioning cavity 141.
  • a glue-filling reference mark flange 114 protruding from the surface of the cavity wall is formed, the glue-filling reference mark
  • the upper surface of the flange 114 is slightly lower than the upper plane of the cavity of the casing chamber 11, preferably less than 0.3-0.8 mm, preferably 0.4-0.6 mm, more preferably 0.5 mm.
  • the upper surface of the glue-filling reference mark flange 114 is lower than the cavity of the casing cavity 11 by 0.5 mm, thereby avoiding the blindness when pouring the sealant into the casing cavity 11, because excessive over-filling
  • the glue causes unnecessary waste, which in turn affects the protection effect of the aforementioned bypass diode 3 provided in the casing body 11.
  • a cable defining flange 1411 is formed on the bottom wall of the cable introduction positioning cavity 141 to protrude from the surface of the cavity bottom wall.
  • the cable clamp 142 has a cable.
  • the block cavity 1421 and the wall of the cavity of the cable block cavity 1421 are formed with a cable limiting flange 14211 (shown in detail in FIG. 4) protruding from the surface of the cavity top wall.
  • the function of the aforementioned cable defining flange 1411 and the cable limiting flange 14211 is to increase the pulling force on the cable 6 shown in FIG. 2, preventing the cable 6 from easily breaking free from the casing 1.
  • the left, the middle, and the right are arranged (may also be upper, middle, and lower). Arrangement), the structure of each of the left and right boxes is the same, only the position of the cable introduction positioning seat 14 is different, so that the cable introduction positioning seat 14 of each of the left and right boxes 1 is respectively provided with an electrical connection.
  • the mechanism 2 is electrically connected to the cable 6, and the cable 6 is defined by the aforementioned cable clamp 142 and soldered to the first electrical connection plate 21.
  • the power supply mark 431 indicating the positive and negative power supply, and the two cover 4 on the left and right sides are respectively designed on the surfaces of the positioning cover 43 of the cover 4 of the left and right sides.
  • the power supply mark 431 on the locator cover 43 is different. When one is the power supply negative mark (-), the other is the power positive mark (+), and vice versa.
  • bypass diode 3 When assembling, the bypass diode 3 is first electrically connected to the electrical connection mechanism 2, and then the cable 6 and the pair of bus bars 5 are electrically connected to the electrical connection mechanism 2, and then the sealing body is potted to the casing cavity 11 after the filling is completed. Then, the cover 4 is placed on the cover 1 .

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Photovoltaic Devices (AREA)

Abstract

La présente invention concerne un boîtier de raccordement pour un ensemble photovoltaïque solaire, qui entre dans le domaine technique des ensembles de batterie solaire. Le boîtier de raccordement comprend un corps de boîtier (1), un mécanisme de connexion électrique (2) prévu dans une cavité (11) de corps de boîtier et sur une plaque de fond (111) de la cavité de corps de boîtier, une diode de dérivation (3) prévue dans la cavité (11) de corps de boîtier, correspondant à un côté supérieur du mécanisme de connexion électrique (2) et connectée électriquement au mécanisme de connexion électrique (2), et un couvercle (4) de boîtier qui s'adapte sur le corps (1) de boîtier et est utilisé pour protéger le mécanisme de connexion électrique (2) et la diode de dérivation (3) qui sont prévus dans la cavité (11) de corps de boîtier, caractérisé en ce que : le nombre des mécanismes de connexion électrique (2) et de diodes de dérivation (3) prévus dans la cavité (11) de corps de boîte cavité est un respectivement, et dans un état utilisé, les mécanismes de connexion électrique (2) dans les cavités (11) de corps de boîtier de deux corps de boîtier (1) sont connectés électriquement l'un à l'autre par l'intermédiaire d'une paire de barres omnibus (5) introduites dans les cavités (11) de corps de boîtier. Un effet de dissipation de chaleur de la diode de dérivation (3) est activé pour satisfaire les exigences de l'élaboration d'une batterie photovoltaïque solaire d'une plus grande puissance et d'un courant plus élevé, et il est possible de résoudre un conflit entre la dissipation de chaleur du corps de boîtier (1) et la diode de dérivation (3) à l'aide d'une grande puissance et d'un courant élevé. La structure globale est simple, et peut donc être fabriquée commodément et assemblée rapidement.
PCT/CN2015/096370 2015-05-28 2015-12-04 Boîtier de raccordement pour ensemble photovoltaïque solaire Ceased WO2016188080A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510282032.XA CN104901622A (zh) 2015-05-28 2015-05-28 用于太阳能光伏组件的接线盒
CN201510282032.X 2015-05-28

Publications (1)

Publication Number Publication Date
WO2016188080A1 true WO2016188080A1 (fr) 2016-12-01

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PCT/CN2015/096370 Ceased WO2016188080A1 (fr) 2015-05-28 2015-12-04 Boîtier de raccordement pour ensemble photovoltaïque solaire

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CN (1) CN104901622A (fr)
WO (1) WO2016188080A1 (fr)

Cited By (2)

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CN108988779A (zh) * 2018-06-14 2018-12-11 合肥流明新能源科技有限公司 一种液冷光伏电池接线盒及其工作方法
CN109768767A (zh) * 2018-12-05 2019-05-17 苏州快可光伏电子股份有限公司 一种太阳能双玻组件用的分体式接线盒

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CN104901622A (zh) * 2015-05-28 2015-09-09 常熟市冠日新材料有限公司 用于太阳能光伏组件的接线盒
CN105790704A (zh) * 2016-06-03 2016-07-20 浙江人和光伏科技有限公司 太阳能电池用接线盒
CN105932958A (zh) * 2016-06-25 2016-09-07 苏州同泰新能源科技有限公司 分体式旁路模块光伏接线盒
CN106160654B (zh) * 2016-08-26 2018-08-31 苏州快可光伏电子股份有限公司 接线基座及应用其的光伏组件接线盒
CN107800379A (zh) * 2017-11-24 2018-03-13 浙江人和光伏科技有限公司 一种光伏接线单元
CN108134574A (zh) * 2017-12-14 2018-06-08 常州星海电子股份有限公司 太阳能接线盒三分体光伏模块
CN110138334A (zh) * 2019-06-14 2019-08-16 江苏最上电气有限公司 一种用于光伏接线盒的防水结构
CN111245361A (zh) * 2020-04-01 2020-06-05 江苏快可新能源科技有限公司 一种具有改进电缆固定装置的光伏接线盒
CN111628719A (zh) * 2020-04-17 2020-09-04 泰州隆基乐叶光伏科技有限公司 一种接线盒、光伏组件及接线方法

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