WO2015051579A1 - 安全型直流汇流箱 - Google Patents

安全型直流汇流箱 Download PDF

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Publication number
WO2015051579A1
WO2015051579A1 PCT/CN2013/090213 CN2013090213W WO2015051579A1 WO 2015051579 A1 WO2015051579 A1 WO 2015051579A1 CN 2013090213 W CN2013090213 W CN 2013090213W WO 2015051579 A1 WO2015051579 A1 WO 2015051579A1
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Prior art keywords
input device
color
combiner box
electrical conductor
positive input
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PCT/CN2013/090213
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English (en)
French (fr)
Inventor
何广飞
何成祥
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何广飞
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Publication of WO2015051579A1 publication Critical patent/WO2015051579A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/108—Parallel operation of dc sources using diodes blocking reverse current flow
    • 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 utility model belongs to the technical field of electrical equipment, in particular to a DC combiner box. Background technique
  • the most basic electrical unit in a solar power system is the combiner box except for the photovoltaic module (solar battery board). It is a way of passing the direct current generated by the photovoltaic modules in series and parallel, and the trickle stream is collected in the combiner box, and then the book is sent out by the combiner box.
  • the combiner box has achieved the role of connecting the upper and lower, and is also one of the indispensable electrical units in the solar power generation system.
  • the confluence box needs to be connected between the numerous electrical components in the combiner box, and the current combiner box connection
  • the cables are disorderly, and the comb-shaped copper bars, the contact copper bars and copper cables, and the cable joints are all exposed, which brings great hidden danger to personal safety.
  • the combiner box is a DC electrical system.
  • the DC current generated by the PV module is imported by dozens of cables, and is often installed outdoors. This requires a large number of waterproof connectors for cable introduction, but the current waterproof connector is basically They are all in the same color, and it is difficult to distinguish or identify the positive and negative polarity of the incoming cable. Therefore, the installation personnel often make mistakes in the field wiring, causing serious electrical short-circuit accidents, and even burning the PV modules, which also brings great equipment safety. Hidden dangers. Utility model content
  • the technical problem to be solved by the utility model is to provide a safety type DC combiner box.
  • a safety type DC combiner box includes a casing, a positive input device, a negative input device, an output device and a surge protector disposed in the casing, wherein the positive input device and the negative input device are connected to the output through an electrical conductor a device, the surge protector having one end connected to the positive input device and The electrical conductor between the output device and the other end are connected to the electrical conductor between the negative input device and the output device, wherein the housing is provided with a wire slot embedded in the conductor along the path of each electrical conductor.
  • the wire trough also has a cover plate covering the electrical conductor.
  • the housing is provided with a first color waterproof joint and a second color waterproof joint different in color from the first color waterproof joint; the positive input device There is a first color patch on the same as the first color waterproof connector, and the negative input device has the same second color code as the second color waterproof connector.
  • the housing is provided with a third color waterproof joint which is different in color from the first color waterproof joint and the second color waterproof joint.
  • the positive input device and the negative input device are both fuses or knife switches; the output device is a DC circuit breaker, and the electrical conductor is a copper bus or a copper cable.
  • the first color is red and the second color is blue.
  • an anti-reverse diode is disposed in the housing, and the anti-reverse diode is connected to an output end of the positive input device and connected to the output device via the electrical conductor.
  • a self-powered DC monitor is disposed in the housing, and the self-powered DC monitor is connected to an output end of the positive input device and connected to the output device via the electrical conductor.
  • an anti-reverse diode and a self-powered DC monitor are disposed in the housing, and the self-powered DC monitor is connected to an output end of the positive input device and connected to the anti-reverse diode.
  • the anti-reverse diode is then connected to the output device via the electrical conductor.
  • FIG. 1 is a schematic structural diagram of embodiment 1;
  • Figure 2 is a schematic view showing the electrical connection of Embodiment 1;
  • Embodiment 2 is a schematic structural view of Embodiment 2;
  • Figure 4 is a schematic view showing the electrical connection of Embodiment 2;
  • Figure 5 is a schematic structural view of the bottom side panel of the casing of Embodiment 1 and Embodiment 2;
  • Embodiment 6 is a schematic structural view of Embodiment 3.
  • Figure 7 is a schematic view showing the electrical connection of Embodiment 3.
  • Figure 8 is a schematic view showing the structure of the embodiment 4.
  • Figure 9 is a schematic view showing the electrical connection of Embodiment 4.
  • Figure 10 is a schematic view showing the structure of the bottom side panel of the casing of Embodiment 3 and Embodiment 4. detailed description
  • the DC combiner box of this embodiment includes a housing 100 , and a positive input device 200 , a negative input device 300 , an output device 400 , a surge protector 500 , and a line are disposed on a bottom plate in the housing 100 .
  • the positive input device 200 and the negative input device 300 are both fuses, and the output device 400 is a DC circuit breaker.
  • the positive input device 200 and the negative input device 300 are both connected to the output device 400 through a conductor disposed in the wire slot 600, and the surge protector 500 is connected between the positive input device 200 and the output device 400. The other end is connected to the electrical conductor between the negative input device 300 and the output device 400.
  • the bottom plate 600 is disposed along the path of each electric conductor in the bottom plate of the casing 100, and each electric conductor is embedded in the wire groove 600, and the wire groove 600 has a cover plate covering the electric conductor to ensure the cover. The conductor is not exposed.
  • a row of red first color waterproof joints 701 and a row of blue second color waterproof joints 702 are further disposed on the bottom side panel of the casing 100.
  • the member 200 is provided with a first color code 201 of the same color as the first color waterproof connector, and the negative input device 300 is provided with a second color code 301 of the same color as the second color waterproof connector 702.
  • the difference between this embodiment and the first embodiment is that the bottom plate of the housing 100 is further provided with an anti-reverse diode 801.
  • the anti-reverse diode 801 is connected to the output terminal of the positive input device 200 and is connected to the output device 400 via an electrical conductor.
  • the other structure is the same as that of Embodiment 1, and will not be described again.
  • the difference between this embodiment and the embodiment 1 is that the positive input device 200 and the negative input device 300 of the embodiment 1 are arranged up and down, so the red-blue waterproof joint is also arranged up and down. Corresponding to it, easy to connect and identify.
  • the positive input device 200 and the negative input device 300 of the present embodiment are arranged side by side, so the red-blue waterproof joint is also arranged to correspond to the left and right for easy connection and identification.
  • a self-powered DC monitor 802 is provided on the bottom plate of the housing 100.
  • a self-powered DC monitor 802 is coupled to the output of positive input device 200 and is coupled to output device 400 via a conductor.
  • the other structure is the same as that of Embodiment 1, and will not be described again.
  • the difference between this embodiment and the third embodiment is that the bottom plate of the housing 100 is further provided with an anti-reverse diode 801 and a self-powered DC monitor 802.
  • the self-powered DC monitor 802 is connected to the output terminal of the positive input device 200 and is connected to the anti-reverse diode 801, and the anti-reverse diode 801 is connected to the output device 400 via the conductive body.
  • the other structure is the same as that of Embodiment 3 and will not be described again.
  • the utility model adopts the above technical scheme, and a red waterproof joint is respectively arranged at the entrance and exit line of the combiner box cable, indicating that the positive polarity cable is introduced, the blue waterproof joint means a negative polarity cable, and the waterproof joint is independent of the positive and negative polarity cables.
  • There are other color waterproof connectors. Cables with positive and negative polarity are introduced and then connected to the positive and negative input fuses (or knife switches) with the red-blue mark to ensure safe identification.
  • the connection between the fuse (or knife switch) and other electrical components is arranged by the wire trough and the cover plate to ensure that there is no exposed metal parts, to prevent personal safety hazards and to strengthen safety protection.
  • the DC combiner box of the present invention has the functions of safety identification and safety protection, and eliminates the safety hazard of equipment use and maintenance.
  • the positive input device 200 and the negative input device 300 may be fuses or knife switches according to functional requirements.

Abstract

一种安全型直流汇流箱，包括壳体（100），设于壳体内的正极输入器件（200）、负极输入器件（300）、输出器件（400）以及浪涌保护器（500），正极输入器件、负极输入器件均通过导电体连接到输出器件，浪涌保护器一端连接到正极输入器件和输出器件之间的导电体上，另一端连接到负极输入器件和输出器件之间的导电体上，壳体内沿各导电体的路径设置有容导电体嵌入的线槽（600），线槽上还具有覆盖导电体的盖板。这种直流汇流箱具有安全识别、安全防护的功能，消除了设备使用和维护的安全隐患。

Description

安全型直流汇流箱 技术领域
本实用新型属于电气设备技术领域， 尤其涉及一种直流汇流箱。 背景技术
近年来太阳能发电突飞猛进说， 全世界有识之士都在为太阳能发电造福人 类大展才华。 在太阳能发电系统最基本的电气单元除了光伏组件 （太阳能电 池板）外就是汇流箱了。 它是将光伏组件所产生的直流电通过串并联的方式， 涓涓细流汇总于汇流箱内， 再由汇流箱送出书。 汇流箱做到了承上启下的作用， 也是太阳能发电系统里必不可少的电气单元之一， 汇流箱由于汇入回路众多， 在汇流箱内众多的电气零部件之间需要联接， 而目前的汇流箱联接线缆杂乱 无章， 梳状铜排、 联络铜排和铜线缆、 电缆接头等带电金属部件均棵露， 给 人身安全带来极大隐患。
另外， 汇流箱属于直流电气系统， 通常由数十根电缆将光伏组件所产生 的直流电流汇入， 且往往安装于户外， 这就需要大量的防水接头供线缆引入， 但目前的防水接头基本都是同一颜色，很难区分或识别引入电缆的正负极性， 故造成安装人员现场接线常常发生错误， 引发严重的电气短路事故， 甚至烧 坏光伏组件， 给设备安全同样带来极大的隐患。 实用新型内容
本实用新型所要解决的技术问题是提供一种安全型直流汇流箱。
为了解决上述技术问题， 本实用新型采用如下的技术方案：
一种安全型直流汇流箱， 包括壳体， 设于壳体内正极输入器件、 负极输 入器件、 输出器件以及浪涌保护器， 所述正极输入器件、 负极输入器件均通 过导电体连接到所述输出器件， 所述浪涌保护器一端连接到正极输入器件和 输出器件之间的导电体上， 另一端连接到负极输入器件和输出器件之间的导 电体上， 其特征在于； 所述壳体内沿各导电体的路径设置有容导电体嵌入的 线槽， 所述线槽上还具有覆盖所述导电体的盖板。
通过在壳体内沿各导电体的路径设置有容导电体嵌入的线槽并且在线槽 上设置覆盖住导电体的盖板， 这样电气零部件之间的导电体就不会棵露在外， 杜绝人身安全隐患， 确保了安全防护。
为了避免安装人员现场接线错误， 在本实用新型的进一步改进中， 所述 壳体上设有第一色防水接头和颜色不同于第一色防水接头的第二色防水接 头； 所述正极输入器件上具有与第一色防水接头相同的第一色标， 所述负极 输入器件上具有与第二色防水接头相同的第二色标。
另外， 壳体上还设有颜色既不同于第一色防水接头也不同于第二色防水 接头的第三色防水接头。
所述正极输入器件、 负极输入器件均为熔断器或刀开关； 所述输出器件 为直流断路器， 所述导电体为铜排或铜线缆。
所述第一色为红色， 所述第二色为兰色。
在本实用新型的一实施例中， 所述壳体内设有防反二极管， 所述防反二 极管连接在正极输入器件的输出端并经所述导电体连接所述输出器件。
在本实用新型的一实施例中， 所述壳体内设有自供电直流监控器， 所述 自供电直流监控器连接在正极输入器件的输出端并经所述导电体连接所述输 出器件。
在本实用新型的一实施例中， 所述壳体内设有防反二极管和自供电直流 监控器， 所述自供电直流监控器连接在正极输入器件的输出端并连接所述防 反二极管， 所述防反二极管再经所述导电体连接所述输出器件。
采用上述技术方案， 本实用新型的直流汇流箱具有安全识别、 安全防护 的功能， 消除了设备使用和维护的安全隐患。 附图说明 下面结合附图和具体实施方式对本实用新型进行详细说明： 图 1为实施例 1的结构布置示意图；
图 2为实施例 1的电气连接示意图；
图 3为实施例 2的结构布置示意图；
图 4为实施例 2的电气连接示意图；
图 5为实施例 1和实施例 2的壳体底侧面板的结构示意图；
图 6为实施例 3的结构布置示意图；
图 7为实施例 3的电气连接示意图；
图 8为实施例 4的结构布置示意图；
图 9为实施例 4的电气连接示意图；
图 10为实施例 3和实施例 4的壳体底侧面板的结构示意图。 具体实施方式
实施例 1
如图 1所示， 本实施例的直流汇流箱，包括壳体 100 , 在壳体 100内的底 板上设置有正极输入器件 200、 负极输入器件 300、 输出器件 400、 浪涌保护 器 500以及线槽 600。 正极输入器件 200、 负极输入器件 300均为熔断器， 输 出器件 400为直流断路器。
结合图 2所示，正极输入器件 200、 负极输入器件 300均通过设置在线槽 600内的导电体连接到输出器件 400 , 浪涌保护器 500—端连接到正极输入器 件 200和输出器件 400之间的导电体上， 另一端连接到负极输入器件 300和 输出器件 400之间的导电体上。
再如图 1所示， 线槽 600在壳体 100内的底板沿各导电体的路径进行布 置， 各个导电体嵌在线槽 600内， 并且线槽 600上具有覆盖住导电体的盖板， 确保导电体不外露。
如图 5所示， 在壳体 100的底侧面板上还设置有一排红色的第一色防水 接头 701和一排兰色的第二色防水接头 702。并且如图 1所示，在正极输入器 件 200上设有与第一色防水接头颜色相同的第一色标 201 , 负极输入器件上 300设有与第二色防水接头 702颜色相同的第二色标 301。
实施例 2
如图 3、 图 4所示， 本实施例与实施例 1的不同之处为： 壳体 100的底板 上还设有防反二极管 801。该防反二极管 801连接在正极输入器件 200的输出 端并经导电体连接到输出器件 400。 其它结构与实施例 1相同， 不再累述。
实施例 3
如图 6、 图 7和图 10所述， 本实施例与实施例 1的不同之处为： 实施例 1的正极输入器件 200和负极输入器件 300是上下排列，所以红兰防水接头也 是上下排列与之对应， 便于连接和识别。 本实施例的正极输入器件 200和负 极输入器 300是左右排列， 所以红兰防水接头也是左右排列与之对应， 便于 连接和识别。还有壳体 100的底板上设有自供电直流监控器 802。 自供电直流 监控器 802 连接在正极输入器件 200 的输出端并经导电体连接到输出器件 400。 其它结构与实施例 1相同， 不再累述。
实施例 4
如图 8、 图 9所述， 本实施例与实施例 3的不同之处为： 壳体 100的底板 还设有防反二极管 801和自供电直流监控器 802。自供电直流监控器 802连接 在正极输入器件 200的输出端并连接防反二极管 801 ,防反二极管 801再经导 电体连接输出器件 400。 其它结构与实施例 3相同， 不再累述。
本实用新型采用上述的技术方案， 在汇流箱电缆的进出线处分别设有红 色防水接头， 表示正极性电缆引入， 兰色防水接头表示负极性电缆， 与正负 极性电缆无关的防水接头设有其他色防水接头。 具有正、 负极性的电缆引入 后分别再联接到具有红兰标识的正、 负极输入熔断器（或刀开关）确保安全 识别。 在熔断器（或刀开关）与其他电气零部件之间的联络均采用线槽及盖板 布置方式， 确保无棵露带电金属部分， 杜绝人身安全隐患， 加强安全防护。
因此， 通过上述详细描述可以看出， 本实用新型的直流汇流箱具有安全 识别、 安全防护的功能， 消除了设备使用和维护的安全隐患。 上述实施例中， 正极输入器件 200、 负极输入器件 300根据功能需要， 可 以是熔断器也可以是刀开关。
但是， 本领域技术人员应该认识到， 上述的具体实施方式只是示例性的， 是为了更好的使本领域技术人员能够理解本专利， 不能理解为是对本专利保 护范围的限制， 只要是根据本专利所揭示精神的所作的任何等同变更或修饰， 均落入本专利保护的范围。

Claims

1. 一种安全型直流汇流箱， 包括壳体， 设于壳体内正极输入器件、 负极 输入器件、 输出器件以及浪涌保护器， 所述正极输入器件、 负极输入器件均 通过导电体连接到所述输出器件， 所述浪涌保护器一端连接到正极输入器件 和输出器件之间的导电体上， 另一端连接到负极输入器件和输出器件之间的 导电体上， 其特征在于； 所述壳体内沿各导电体的路径设置有容导电体嵌入 的线槽， 所述线槽上还具有覆盖所述导电体的盖板。
2.根据权利要求 1 所述的安全型直流汇流箱， 其特征在于： 所述壳体上 设有第一色防水接头和颜色不同于第一色防水接头的第二色防水接头； 所述 正极输入器件上具有与第一色防水接头颜色相同的第一色标， 所述负极输入 器件上具有与第二色防水接头颜色相同的第二色标。
3. 根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述正极输 入器件、 负极输入器件均为熔断器或刀开关； 所述导电体为铜排或铜线缆。
4. 根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述第一色 为红色， 所述第二色为兰色。
5. 根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述壳体内 设有防反二极管， 所述防反二极管连接在正极输入器件的输出端并经所述导 电体连接所述输出器件。
6. 根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述壳体内 设有自供电直流监控器， 所述自供电直流监控器连接在正极输入器件的输出 端并经所述导电体连接所述输出器件。
7. 根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述壳体内 设有防反二极管和自供电直流监控器， 所述自供电直流监控器连接在正极输 入器件的输出端并连接所述防反二极管， 所述防反二极管再经所述导电体连 接所述输出器件。
8.根据权利要求 2所述的安全型直流汇流箱， 其特征在于： 所述壳体上 还设有颜色既不同于第一色防水接头也不同于第二色防水接头的第三色防水 接头。
PCT/CN2013/090213 2013-10-12 2013-12-23 安全型直流汇流箱 WO2015051579A1 (zh)

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