WO2011047570A1 - 光伏组件用接线盒 - Google Patents
光伏组件用接线盒 Download PDFInfo
- Publication number
- WO2011047570A1 WO2011047570A1 PCT/CN2010/075570 CN2010075570W WO2011047570A1 WO 2011047570 A1 WO2011047570 A1 WO 2011047570A1 CN 2010075570 W CN2010075570 W CN 2010075570W WO 2011047570 A1 WO2011047570 A1 WO 2011047570A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diode
- upper cover
- junction box
- base
- photovoltaic module
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- 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
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- 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
- H02S40/345—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes with cooling means associated with the electrical connection means, e.g. cooling means associated with or applied to the junction box
-
- 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 present invention relates to the field of photovoltaic cell technology, and more particularly to a junction box for a photovoltaic module.
- a junction box for a photovoltaic module BACKGROUND OF THE INVENTION
- the materials of the upper cover and the base of the junction box used in the photovoltaic cell power generation system on the market generally use engineering plastics, and the connection between the conductors is mainly contact type fixing, and the junction box of the structure is in the work.
- the diode inside the casing In the state of the device, the diode inside the casing generates a large amount of heat energy, and the heat is transmitted to the casing through the air conduction and convection in the casing, and the casing releases the heat by conduction, but the heat conductivity of the air and the plastic is poor, and the casing is inside. The heat cannot be released in time, causing the temperature inside the casing to rise continuously.
- the high temperature working environment makes the diode's power supply capability drop drastically, which reduces the power generation efficiency of the photovoltaic module, shortens the working life of the diode, and increases the maintenance of the component. Frequency, too high temperature also accelerates the deformation and aging of the housing, shortening the service life of the product.
- the commonly used method is to fix the heat absorption effect on the inner surface of the upper cover of the junction box.
- the thermal conductive pad uses the thermal adhesive pad to contact the upper cover to transmit the heat absorbed by the thermal pad to the upper cover, but the conduction between the diode and the thermal pad is conducted through the air. , but the conduction speed is increased, and the heat dissipation effect is better than the original simple air conduction. It is still difficult to achieve rapid heat dissipation in the junction box, and it is impossible to truly control the internal temperature of the junction box within a reasonable range to ensure stable operation of the diode and prolong the service life of the diode. At the same time, the current junction box is between the conductor connections.
- the contact parts generally adopt the elastic piece and the bump contact.
- Such a structure makes the contact form between the conductors be point contact, the contact part area is too small, the resistance is increased, and the transmission efficiency of the product to the electric energy is reduced.
- the technical solution adopted by the present invention to solve the technical problem thereof comprises: a base and an upper cover fastened on the base, at least two wiring devices are arranged on the base, and two adjacent wiring devices are electrically connected by a diode, and the wiring is
- the device comprises a metal connector with a horizontal concave curved surface mounted on the base, one end of the metal connector is used for connecting the bus bar of the photovoltaic component, and the other end is connected to the terminal of the photovoltaic cable, and the pin of the diode has The vertical section and the horizontal section are formed by bending, and the vertical section is in contact with the metal connecting member cylinder, and the horizontal section is fitted in the concave arc surface.
- the diode is provided with a body heat dissipating device and a pin heat dissipating device, and the body dissipates heat.
- the device and the pin heat sink are respectively in contact with the inner surface of the upper cover to directly transfer the working heat of the diode to the upper cover.
- the body heat dissipating device comprises a thermal silica gel pad disposed on an inner surface of the upper cover, and the thermal silica gel pad has a semi-circular arc surface that matches an arc of an outer surface of the diode, and is thermally conductive after the upper cover is fastened to the base.
- the semi-circular arc surface of the silicone pad is in contact with the arc of the outer surface of the diode;
- the pin heat dissipating device comprises a coil spring disposed at a central position of the metal connecting member and pressed on a plane of the metal connecting member, and the bottom of the coil spring has a
- the concave semi-circular arc is pressed on the horizontal section of the diode, and the upper part of the coil spring is sleeved with a heat-conductive insulating sleeve, and the upper surface of the heat-conductive insulating sleeve is planarly fitted with the thermal conductive silicone pad.
- the inner surface of the upper cover is fixed with an upper cover inner liner, and the upper cover inner liner is pressed and adhered to the inner surface of the upper cover, the outer surface of the upper cover has a heat sink, and the upper cover and the heat sink are made of aluminum alloy.
- the integrated structure, the heat sink has a convex arc shape, and is spaced apart on the outer surface of the upper cover, and a portion with a large heat dissipation area is located above the diode.
- the wiring device further includes a folding spring, the metal connecting member has a vertical plane bent upward at the access end of the bus bar, the vertical plane end has a circular arc bending, and the middle portion has an inward bending section, the direction
- the inner bending section passes through the through hole in the middle of the folding spring to clamp the folding spring to the inner side surface of the vertical plane
- the top end portion of the folding spring has an arc-shaped bending section
- the curved bending section is located on the outer side surface of the vertical plane and Elastic compression at the end of the vertical plane
- the arc-shaped bend is used to clamp the bus bar of the photovoltaic module.
- the metal connector further has an upright support frame which is bent and formed to facilitate the disassembly of the spring.
- the inner surface of the base is provided with a strip-shaped insulating plate capable of withstanding high temperature at a position opposite to the diode, and the insulating plate has a strip for mounting the metal connector. Groove.
- the base is annularly provided with a sealing groove, and a sealing ring is placed in the sealing groove. After the upper cover is placed on the base, the sealing ring is pressed by the screw.
- the utility model has the beneficial effects that: the utility model can avoid the air conduction with low heat conduction effect by providing the body heat dissipating device and the pin heat dissipating device on the diode, so that the heat generated during the operation of the diode is directly transmitted to the upper surface through the thermal conductive silicone pad.
- the surface is covered and quickly dissipated, thereby greatly improving the heat dissipation performance of the junction box as a whole, so that the internal temperature of the junction box can be controlled within a reasonable range, ensuring the working stability and service life of the diode, and the connection between the conductors is flat.
- Figure 1 is a schematic view of the structure of the present invention.
- Figure 2 is a cross-sectional view taken along line AA of Figure 1.
- Figure 3 is a cross-sectional view taken along line BB of Figure 1.
- Figure 4 is a cross-sectional view taken along line CC of Figure 1.
- Figure 5 is a cross-sectional view taken along line DD of Figure 1, and
- Figure 6 is a partial enlarged view of E at Figure 5.
- the junction box for a photovoltaic module shown in FIG. 1 to FIG. 6 includes a base 1 and an upper cover 2 fastened to the base 1.
- the upper cover 2 is made of an aluminum alloy material with good heat dissipation effect, and the base 1 is provided with a circular plane on the upper surface.
- the sealing groove 1.1, the sealing groove 1 is placed inside the sealing ring 10. After the upper cover 2 is fixed on the base 1, the upper cover 2 is embedded in the sealing groove 1. 1 and then locked by the screw 13 Pressing the sealing ring 10 can better improve the sealing performance of the junction box.
- Four parallel arranged wiring devices 3 are arranged in the base 1, and two diodes 4 are electrically connected between two adjacent wiring devices 3.
- the connecting device 3 includes a metal connecting member 31 having a horizontal concave curved surface 311 and a metal connecting member 31.
- the metal connecting member 31 is connected to the bus bar of the photovoltaic module, and the other end is connected.
- the terminal 5 of the photovoltaic cable, the terminal 5 is fixed on the wiring plane of the extension surface of the metal connector 31 by a self-tapping screw, and the U-shaped opening is used at the other end for enclosing the connected photovoltaic cable.
- the lead of the diode 4 has a bent vertical section 41 and water
- the segment 42 is vertically inserted into the metal connecting member 31 and is in cylindrical contact with the metal connecting member 31.
- the horizontal portion 42 is fitted in the concave curved surface 311 of the metal connecting member 31, so as to generate heat when the diode 4 is operated as soon as possible. Pass out, make sure the internal temperature of the junction box is within a reasonable range, in the diode 4
- the diode 4 body heat dissipating device 6 and the pin heat dissipating device 7 are disposed on the body, and the main body heat dissipating device 6 includes a thermal conductive silicone pad 61.
- the thermal conductive silicone pad 61 is disposed on the inner surface of the upper cover 2 and the inner cover 9 is pressed tightly.
- the thermal conductive silicone pad 61 has a semi-circular surface 611 which coincides with the outer surface arc of the diode 4.
- the pin heat sink 7 comprises a metal connection.
- a coil spring 71 at a central position of the member 31 and pressed against the upper surface of the metal connecting member 31.
- the bottom of the coil spring 71 has a concave semicircular arc which can be press-fitted to the horizontal portion 42 of the diode 4, and the coil spring 71 is pressed against the metal joint.
- the concave semicircular arc of the coil spring 71 presses the horizontal section 42 of the diode 4 into the concave curved surface 311 of the metal connecting member 31, and the coil spring 71 is made of a material having a high thermal conductivity, and is directly bonded.
- the upper part of the coil spring 71 is covered with thermal insulation. 72, when the upper cover 2 is fastened to the base 1, the top surface of the thermal insulating sleeve 72 is just attached to the plane of the thermal conductive silicone pad 61.
- the thermal conductive silicone cover 61 is transferred to the thermal conductive silicone pad 61, and the thermal conductive silicone pad 61 is transferred to the upper cover 2 for rapid dissipation.
- the outer cover of the upper cover 2 has an upper cover.
- the heat sink 21 is a heat sink 21 of a unitary structure
- the heat sink 21 has a convex arc shape, and is spaced apart on the outer surface of the upper cover 2, and a portion with a large heat dissipation area of the heat sink 21 is located at a position where the heat is most concentrated above the diode 4, and
- the direction in which the fins 21 are disposed coincides with the direction in which the air convections, thereby achieving rapid heat dissipation.
- the wiring device 3 further includes a folding spring 32, and the metal connecting member 31 has an upwardly bent vertical plane 312 at the bus bar access end, the vertical plane 312 has a circular arc-shaped bend 313 at the end, and the middle portion has an inward direction
- the bending section 314, the inward bending section 314 passes through the through hole 321 in the middle of the folding spring 32 to clamp the folding spring 32 to the inner side surface of the vertical plane 312, and the top end portion of the folding spring 32 has an arc bending section 322.
- the arcuate bent section 322 is located on the outer side of the vertical plane 312 and is elastically pressed against the arcuate bend 313 at the end of the vertical plane 312.
- a bus bar for clamping the photovoltaic module is located on the outer side of the vertical plane 312 and is elastically pressed against the arcuate bend 313 at the end of the vertical plane 312.
- the metal connecting member 31 further has an upright support frame 315 which is bent and formed to facilitate the disassembly of the folding spring 32 at the near folding spring 32.
- the fulcrum of the turbulent power acts on the upright support frame 315.
- the inner surface of the base 1 is provided with a strip-shaped insulating plate 8 capable of withstanding high temperature at a position opposite to the diode 4.
- the insulating plate 8 has a strip shape for mounting the metal connecting member 31.
- the groove 81 when the temperature of the lead is high when the diode 4 is in operation, the temperature transmitted to the metal connecting member 31 is easily plasticized and deformed by the plastic part in contact with the pressed body, and therefore in the highest temperature region of the metal connecting member 31
- the bottom portion of the force receiving portion is provided with a high-temperature resistant insulating plate 7, which can be deformed without being deformed under the high temperature conditions of the metal connecting member 31, and the plastic member which is in contact with other low temperature regions of the metal connecting member 31 is not deformed.
- the outer surface of the upper cover liner 9 and the inner side of the upper cover 2 and the inner side of the upper cover 2 are integrally fixed after the junction box is completely assembled.
- the circulating passage 12 of the air flow when the current of the diode 4 is in the working state, a part of the generated heat is directly transmitted to the upper cover 2 through the thermal silica gel pad 61, and the other part of the heat causes an increase in temperature inside the base 1, the hot air After rising, it enters the circulation passage 12, and then the inner wall of the upper cover 2 that has encountered low temperature starts to cool, and the temperature decreases downward, and then continues to cool and then flows into the interior of the base 1, and the heat is continuously transmitted through such a cycle of repetition, thus ensuring
- the heat generated by the operation of the diode 4 can be quickly transmitted to the upper cover 2 through the thermal conductive silicone pad 61 and quickly dissipated by the upper cover 2 and the heat sink 21, and the internal temperature of the junction box can be reduced by circulating air to avoid completely relying on efficiency.
- the low heat transfer of the air makes the heat transfer in the base 1 more direct, which is beneficial to the heat. Quick release, improve the working condition of the diode 4, and also help to
- the invention adopts a plurality of heat dissipation structure forms, so that the heat generated by the diode 4 can be quickly dissipated, thereby improving the overall heat dissipation performance of the junction box, ensuring that the internal temperature of the junction box can be controlled within a reasonable range and the working stability of the diode 4 And the service life, at the same time, the connection between the conductors is connected by plane or cylindrical surface, which is beneficial to reduce the contact resistance, improve the contact area between the conductors, and improve the power transmission efficiency of the junction box as a whole, thereby solving the current photovoltaic
- the junction box used in the power generation system has the problems of poor overall heat dissipation, low conductivity between conductors, short diode working life, and low stability.
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- Architecture (AREA)
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- Structural Engineering (AREA)
- Photovoltaic Devices (AREA)
Description
光伏组件用接线盒 技术领域 本发明涉及光伏电池技术领域, 尤其是一种光伏组件用接线盒。 背景技术 目前, 市场上光伏电池发电系统所用的接线盒的上盖和底座的材料普遍使 用工程塑料, 导体之间的连接方式主要是触点式固定, 这种结构的接线盒在工 说
作状态下, 壳体内部的二极管会产生大量的热能, 热量通过壳体内空气传导和 对流传给壳体, 壳体再通过传导将热量释放书, 但由于空气和塑料的导热性能差, 壳体内的热量不能及时释放出来, 造成了壳体内的温度不断升高, 高温的工作 环境使得二极管的通电能力急剧下降, 降低了光伏组件的发电效率, 缩短了二 极管的工作寿命, 也增加了组件的维修频率, 同时过高的温度也加速了壳体的 变形和老化, 缩短了产品的使用寿命, 为此为解决二极管散热问题, 普遍采用 的方式是在接线盒的上盖内表面固定吸热效果强的导热胶垫, 利用导热胶垫与 上盖的贴合接触, 将导热胶垫吸收的热量传递给上盖而散发, 但这种传导方式 在二极管与导热胶垫之间热量还是通过空气传导的, 只不过传导速度有所加快, 散热效果比原来单纯的空气传导好些而已, 仍难以实现接线盒内热量的快速散 发, 无法真正达到将接线盒内部温度控制在合理范围内, 以确保二极管工作稳 定和延长二极管使用寿命的目的, 同时目前的接线盒在导体连接之间的接触部 位普遍采用弹片和突点接触, 这样的结构使得导体之间的接触形式为点接触, 接触部位面积太小, 增加了电阻, 降低了产品对电能的传输效率。 发明内容 本发明要解决的技术问题是: 克服现有技术中之不足, 提供一种散热性能
好、 导电率高、 工作可靠的光伏组件用接线盒。
本发明解决其技术问题所采用的技术方案是: 包括底座和扣合在底座上的 上盖, 底座上至少设有两个接线装置, 相邻两个接线装置之间通过二极管电性 连接, 接线装置包括具有水平状内凹弧面卡设在底座上的金属连接件, 金属连 接件一端用于连接光伏组件的汇流条, 另一端连接可接入光伏线缆的接线端子, 二极管的引脚具有弯折成形的垂直段和水平段, 垂直段与金属连接件圆柱接触 连接, 水平段贴合在所述的内凹弧说面内, 二极管上设置有本体散热装置和引脚 散热装置, 本体散热装置和引脚散热装置分别与上盖内表面相接触而将二极管 工作热量直接传递到上盖散发。
具体说, 所述的本体散热装置包括设置在上盖内表面的导热硅胶垫, 导热 硅胶垫具有与二极管外表面圆弧相吻合的半圆弧面, 在上盖扣合在底座上后, 导热硅胶垫的半圆弧面与二极管外表面圆弧贴合接触; 所述的引脚散热装置包 括设在金属连接件中部位置且压在金属连接件上平面上的卷簧, 卷簧底部具有 可压紧在二极管水平段上的内凹半圆弧, 卷簧的上部套有导热绝缘套, 导热绝 缘套上平面与导热硅胶垫平面贴合。
所述的上盖内表面固定有上盖内衬, 上盖内衬将导热硅胶垫压紧贴合在上 盖内表面, 上盖外表面具有散热片, 上盖和散热片为采用铝合金制作的一体结 构, 散热片呈外凸圆弧形状, 间隔分布在上盖的外表面上, 其散热面积大的部 分位于二极管上方。
所述的接线装置还包括折簧, 金属连接件位于汇流条接入端具有向上弯折 的竖直平面, 该竖直平面末端具有圆弧形弯折, 中部具有向内弯折段, 该向内 弯折段穿过折簧中部的通孔将折簧卡紧在竖直平面的内侧面, 折簧的顶端部具 有弧形弯折段, 弧形弯折段位于竖直平面的外侧面且弹性压紧在竖直平面末端
的圆弧形弯折上用于夹紧光伏组件的汇流条。 为便于折簧的拆卸, 所述的金属连接件在近折簧处还具有经弯折成型、 便 于拆卸折簧的直立支撑架。 为减少二极管工作时产生的热量对底座的影响, 所述的底座内表面与二极 管相对的位置处设有可耐高温的条状绝缘板, 绝缘板上具有供金属连接件安装 卡位的条形凹槽。 为保证接线盒整体密封性良好说, 所述的底座上平面环形设有密封凹槽, 密 封凹槽内放置有密封圈, 上盖盖于底座上后通过螺钉压紧密封圈。
书
本发明的有益效果是: 本实用新型通过在二极管上设置本体散热装置和引 脚散热装置的方式, 避免了导热效果低下的空气传导, 使二极管工作时产生的 热量经导热硅胶垫直接传递给上盖上表面而快速散发, 由此极大地提高了接线 盒整体的散热性能, 使得接线盒内部温度可控制在合理范围内, 确保二极管的 工作稳定性和使用寿命, 同时导体之间的连接采用平面或圆柱面接触连接, 有 利于降低接触电阻, 提高导体之间的接触面积, 从而整体提高了接线盒的电能 传输效率。 附图说明 下面结合附图和实施方式对本发明进一步说明。 图 1是本发明的结构示意图。 图 2是图 1中 A-A剖视图。 图 3是图 1中 B-B剖视图。 图 4是图 1 中 C-C剖视图。 图 5是图 1 中 D-D剖视图 图 6是图 5中 E处的局部放大图。
图中 1、 底座 1. 1、 密封凹槽 2、 上盖 21、 散热片 3、 接线装置 31、 金属连接件 311、 内凹弧面 312、 竖直平面 313、 圆弧形弯折 314、 向内弯折段 315、 直立支撑架 32、 折簧 321、 通孔 322、 弧形弯折 段 4、 二极管 41、 垂直段 42、 水平段 5、 接线端子 6、 本体散热装置 61、 导热硅胶垫 611、 半圆弧面 7、 引脚散热装置 71、 卷簧 72、 导热绝 缘套 8、 绝缘板 81、 条形凹槽 9、 上盖内衬 10、 密封圈 11、 螺钉 12、 循环通道
具体实施方式。
现在结合附图对本发明作进一步的说明。 这些附图均为简化的示意图, 仅 以示意方式说明本发明的基本结构, 因此其仅显示与本发明有关的构成。
如图 1〜图 6所示的光伏组件用接线盒,包括底座 1和扣合在底座 1上的上 盖 2, 上盖 2采用散热效果好的铝合金材料制作, 底座 1上平面环形设有密封凹 槽 1. 1, 密封凹槽 1. 1内放置有密封圈 10, 上盖 2盖于底座 1上固定后, 上盖 2 四周边嵌入密封凹槽 1. 1后通过螺钉 13锁紧后压紧密封圈 10,可较好地提高接 线盒使用时的密封性能, 在底座 1内设置有四个平行排列的接线装置 3, 相邻两 个接线装置 3之间通过两个二极管 4电性连接, 所述的接线装置 3包括具有水 平状内凹弧面 311卡设在底座 1上的金属连接件 31,金属连接件 31—端用于连 接光伏组件的汇流条, 另一端连接可接入光伏线缆的接线端子 5, 接线端子 5— 端通过自攻螺钉固定在金属连接件 31头部延伸面上的接线平面上, 另一端为 U 形张口, 用于包紧所连接的光伏线缆, 二极管 4 的引脚具有弯折成形的垂直段 41和水平段 42, 垂直段 41垂直插入金属连接件 31后与金属连接件 31圆柱接 触连接, 水平段 42贴合在金属连接件 31的内凹弧面 311内, 为尽快将二极管 4 工作时产生的热量传递出去, 确保接线盒内部温度在合理范围内, 在二极管 4
上设置有二极管 4本体散热装置 6和引脚散热装置 7,所述的本体散热装置 6包 括导热硅胶垫 61,导热硅胶垫 61被设置在上盖 2内表面的上盖内衬 9压紧贴合 在上盖 2内表面, 所述的导热硅胶垫 61具有与二极管 4外表面圆弧相吻合的半 圆弧面 611, 在上盖 2扣合在底座 1上后, 导热硅胶垫 61的半圆弧面 611与二 极管 4外表面圆弧贴合接触, 从而二极管 4本体的热量可直接传递给导热硅胶 垫 61后由上盖 2快速散发; 所述的引脚散热装置 7包括设在金属连接件 31中 部位置且压在金属连接件 31上平面上的卷簧 71, 卷簧 71底部具有可压紧贴合 在二极管 4水平段 42上的内凹半圆弧, 卷簧 71压在金属连接件 31上后, 卷簧 71的内凹半圆弧将二极管 4的水平段 42压在金属连接件 31的内凹弧面 311内, 卷簧 71由导热系数高的材料制成, 直接贴合在二极管 4温度最高的引脚, 在卷 簧 71的上部套有导热绝缘套 72, 当上盖 2扣合在底座 1时导热绝缘套 72的顶 面正好贴合在导热硅胶垫 61的平面上, 二极管 4工作时, 其引脚部分产生的热 量由卷簧 71直接吸收而经导热绝缘套 72传递给导热硅胶垫 61, 导热硅胶垫 61 再传递给上盖 2后快速散发, 为了使上盖 2吸收的热量能快速散发, 在上盖 2 的外表面上具有与上盖 2为一体结构的散热片 21, 散热片 21呈外凸圆弧形状, 且间隔分布在上盖 2的外表面上, 散热片 21散热面积大的部分位于二极管 4上 方热量最集中的位置, 同时散热片 21的设置方向与空气对流的方向一致, 从而 实现热量的快速散发。
所述的接线装置 3还包括折簧 32,金属连接件 31位于汇流条接入端具有向 上弯折的竖直平面 312, 该竖直平面 312末端具有圆弧形弯折 313, 中部具有向 内弯折段 314,该向内弯折段 314穿过折簧 32中部的通孔 321将折簧 32卡紧在 竖直平面 312的内侧面,折簧 32的顶端部具有弧形弯折段 322,弧形弯折段 322 位于竖直平面 312 的外侧面且弹性压紧在竖直平面 312末端的圆弧形弯折 313
上用于夹紧光伏组件的汇流条。 同时为便于折簧 32的拆卸, 所述的金属连接件 31在近折簧 32处还具有经弯折成型、 便于拆卸折簧 32的直立支撑架 315, 当 用工具撬动折簧 32的时候, 撬动力的支点作用在直立支撑架 315上, 此结构一 方面提供了稳固的支持点, 也简化了结构, 同时展开的面积也有利于热量的散 发。
为防止底座 1产生受热变形, 所述的底座 1 内表面与二极管 4相对的位置 处设有可耐高温的条状绝缘板 8, 绝缘板 8上具有供金属连接件 31安装卡位的 条形凹槽 81, 当二极管 4工作时引脚的温度很高, 传递到金属连接件 31上的温 度容易使与之接触受压的塑件塑化变形, 因此在金属连接件 31的温度最高区域 的底部受力部位垫上耐高温的绝缘板 7,一方面可以在高温条件下承受金属连接 件 31 的压力时不变形, 同时与金属连接件 31 的其他低温区域相接触的塑件也 不会变形。
同时为便于二极管 4产生的热量通过循环流动的方式由上盖 2散发, 在上 盖内衬 9的外侧面与底座 1和上盖 2的内侧面之间在接线盒整体固定安装完成 后形成一个空气流动的循环通道 12, 当二极管 4有电流通过处于工作状态时, 产生的一部分热量直接通过导热硅胶垫 61传递给上盖 2后释放, 另一部分热量 在底座 1内部造成温度升高, 热空气上升后进入循环通道 12流动, 然后遇到低 温的上盖 2 内壁开始冷却, 温度降低往下流动, 继续冷却后又流入底座 1 的内 部, 通过这样周而复始的循环将热量不断传递出去, 这样, 保证了二极管 4工 作时产生的热量既可通过导热硅胶垫 61传递给上盖 2而由上盖 2和散热片 21 快速散发, 也可经空气的循环流动降低接线盒的内部温度, 避免完全依赖效率 低下的空气热传导传递, 使底座 1 内热量的向外传递更加直接, 有利于热量的 快速释放, 改善二极管 4工作条件, 同时也有利于延缓接线盒所用塑料制品的
老化, 减少塑件的变形。
本发明采用了多种散热的结构形式, 使二极管 4工作时产生的热量得以迅 速散发, 提高了接线盒整体的散热性能, 确保接线盒内部温度可控制在合理范 围内和二极管 4 的工作稳定性和使用寿命, 同时导体之间的连接均采用平面或 圆柱面接触连接, 有利于降低接触电阻, 提高导体之间的接触面积, 从整体上 提高了接线盒的电能传输效率, 从而解决了目前光伏发电系统所用接线盒存在 的整体散热效果较差、 导体之间导电率不高、 二极管工作寿命短、 稳定性较低 的问题。
Claims
1.一种光伏组件用接线盒, 包括底座 (1) 和扣合在底座上的上盖 (2), 底 座 (1) 上至少设有两个接线装置 (3), 相邻两个接线装置 (3) 之间通过二极 管 (4) 电性连接, 其特征是: 接线装置 (3) 包括具有水平状内凹弧面 (311) 卡设在底座 (1) 上的金属连接件 (31), 金属连接件 (31) —端用于连接光伏 组件的汇流条, 另一端连接可接入光伏线缆的接线端子(5), 二极管(4) 的引 脚具有弯折成形的垂直段(41)和水平段(42),垂直段(41)与金属连接件(31) 圆柱接触连接, 水平段 (42) 贴合在所述的内凹弧面 (311) 内, 二极管 (4) 上设置有本体散热装置 (6) 和引脚散热装置 (7), 本体散热装置 (6) 和引脚 散热装置 (7)分别与上盖(2) 内表面相接触而将二极管(4)工作热量直接传 递到上盖 (2) 散发。
2.根据权利要求 1所述的光伏组件用接线盒, 其特征是: 所述的本体散热 装置 (6) 包括设置在上盖 (2) 内表面的导热硅胶垫 (61), 导热硅胶垫 (61) 具有与二极管 (4) 外表面圆弧相吻合的半圆弧面 (611), 在上盖 (2) 扣合在 底座 (1) 上后, 导热硅胶垫 (61) 的半圆弧面 (611) 与二极管 (4) 外表面圆 弧贴合接触。
3.根据权利要求 2所述的光伏组件用接线盒, 其特征是: 所述的引脚散热 装置(7)包括设在金属连接件(31) 中部位置且压在金属连接件(31)上平面 上的卷簧(71), 卷簧(71)底部具有可压紧在二极管水平段(42)上的内凹半 圆弧, 卷簧(71) 的上部套有导热绝缘套 (72), 导热绝缘套(72)上平面与导 热硅胶垫 (61) 平面贴合。
4.根据权利要求 2所述的光伏组件用接线盒, 其特征是: 所述的上盖 (2) 内表面固定有上盖内衬(9), 上盖内衬(9)将导热硅胶垫(61)压紧贴合在上 盖 (2) 内表面, 上盖 (2) 外表面具有散热片 (21), 上盖 (2) 和散热片 (21) 权 利 要 求 书
为采用铝合金制作的一体结构, 散热片 (21) 呈外凸圆弧形状, 间隔分布在上 盖 (2) 的外表面上, 其散热面积大的部分位于二极管 (4) 上方。
5.根据权利要求 1所述的光伏组件用接线盒, 其特征是: 所述的接线装置 (3) 还包括折簧 (32), 金属连接件 (31) 位于汇流条接入端具有向上弯折的 竖直平面 (312), 该竖直平面(312)末端具有圆弧形弯折(313), 中部具有向 内弯折段 (314), 该向内弯折段 (314) 穿过折簧 (32) 中部的通孔 (321) 将 折簧(32)卡紧在竖直平面 (312) 的内侧面, 折簧(32) 的顶端部具有弧形弯 折段 (322), 弧形弯折段 (322) 位于竖直平面 (312) 的外侧面且弹性压紧在 竖直平面 (312) 末端的圆弧形弯折 (313) 上用于夹紧光伏组件的汇流条。
6.根据权利要求 5所述的光伏组件用接线盒, 其特征是: 所述的金属连接 件 (31) 在近折簧 (32) 处还具有经弯折成型、 便于拆卸折簧 (32) 的直立支 撑架 (315)。
7.根据权利要求 1所述的光伏组件用接线盒, 其特征是: 所述的底座 (1) 内表面与二极管(4)相对的位置处设有可耐高温的条状绝缘板(8),绝缘板(8) 上具有供金属连接件 (31) 安装卡位的条形凹槽 (81)。
8.根据权利要求 1所述的光伏组件用接线盒, 其特征是: 所述的底座 (1) 上平面环形设有密封凹槽 (1.1), 密封凹槽 (1.1) 内放置有密封圈 (10), 上 盖 (2) 盖于底座 (1) 上后通过螺钉 (11) 压紧密封圈 (10)。
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| EP10824411.2A EP2492968A4 (en) | 2009-10-22 | 2010-07-30 | Connection box for a photovoltaic component |
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| CN200910234867.2 | 2009-10-22 | ||
| CN2009102348672A CN101877467B (zh) | 2009-10-22 | 2009-10-22 | 太阳能系统用接线盒 |
| CN201020209821.3 | 2010-05-28 | ||
| CN2010202098213U CN201689900U (zh) | 2010-05-28 | 2010-05-28 | 太阳能电池接线盒 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315300A (zh) * | 2011-09-02 | 2012-01-11 | 常熟泓淋连接技术有限公司 | 太阳能光伏发电组件接线盒的盒体结构 |
| CN109672126A (zh) * | 2018-12-19 | 2019-04-23 | 沈阳兴华航空电器有限责任公司 | 一种耐高温电缆结构 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1729348A2 (de) * | 2005-06-03 | 2006-12-06 | Günther Spelsberg GmbH & Co. KG | Elektrische Anschluss- und Verbindungsdose für ein Solarzellenmodul |
| CN200980053Y (zh) * | 2006-12-08 | 2007-11-21 | 孙月静 | 太阳能光伏发电组件接线盒 |
| CN201256268Y (zh) * | 2008-07-17 | 2009-06-10 | 江苏林洋电子有限公司 | 太阳能电池组件接线盒 |
| WO2009122456A1 (en) * | 2008-04-02 | 2009-10-08 | Compel Electronics S.P.A. | System to connect photovoltaic panels |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005022226B4 (de) * | 2005-05-10 | 2008-05-15 | RUNGE, André | Kühlanordnung für in einem Gehäuse angeordnete elektronische Bauelemente |
| DE102006027104B3 (de) * | 2006-06-09 | 2007-08-23 | Fpe Fischer Gmbh | Verbindungsbox und Verfahren zum Schutz und Überwachung von einzelnen Solar-Panels vor Überhitzung |
-
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- 2010-07-30 EP EP10824411.2A patent/EP2492968A4/en not_active Withdrawn
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1729348A2 (de) * | 2005-06-03 | 2006-12-06 | Günther Spelsberg GmbH & Co. KG | Elektrische Anschluss- und Verbindungsdose für ein Solarzellenmodul |
| CN200980053Y (zh) * | 2006-12-08 | 2007-11-21 | 孙月静 | 太阳能光伏发电组件接线盒 |
| WO2009122456A1 (en) * | 2008-04-02 | 2009-10-08 | Compel Electronics S.P.A. | System to connect photovoltaic panels |
| CN201256268Y (zh) * | 2008-07-17 | 2009-06-10 | 江苏林洋电子有限公司 | 太阳能电池组件接线盒 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315300A (zh) * | 2011-09-02 | 2012-01-11 | 常熟泓淋连接技术有限公司 | 太阳能光伏发电组件接线盒的盒体结构 |
| CN109672126A (zh) * | 2018-12-19 | 2019-04-23 | 沈阳兴华航空电器有限责任公司 | 一种耐高温电缆结构 |
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| EP2492968A4 (en) | 2014-07-02 |
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