Circuit board type photovoltaic junction box
A junction box and circuit board technology, applied in the direction of photovoltaic power generation, photovoltaic modules, electrical components, etc., can solve the problems of high manufacturing cost and material cost, increase the overall size of the junction box, reduce operational reliability, etc., and achieve low cost and internal Compact structure and improved operational reliability
Inactive Publication Date: 2014-03-26
江苏柏森电气有限公司(港商独资)
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Problems solved by technology
The photovoltaic junction box of the existing structure has the following problems: 1. The conductors of each phase are usually molded metal parts, which not only have high manufacturing costs and material costs, but also occupy a large space, increasing the overall size of the junction box; 2. Wiring During the working process of the box, the bypass diode is the main heating element. The usual heat dissipation structure is mainly to conduct heat conduction and heat dissipation to the metal pin part of the bypass diode, and the body part of the bypass diode is usually only naturally dissipated through the air. The heat dissipation effect Poor, which makes the temperature rise in the junction box higher during work, reducing the reliability of operation
Method used
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[0011] As shown in the figure, the circuit board type photovoltaic junction box includes a box body 1, which is provided with multi-phase conductors, connecting terminals 2 connected to each phase conductor, and bypass diodes connected between each phase conductor 3; the conductor is a conductive layer printed on a printed circuit board 4, and the printed circuit board 4 is arranged at the bottom of the box body 1; the pins of the bypass diode 3 are connected to the conductive layer as the conductor Layer solder connection. The box body 1 is also provided with an aluminum radiator 5 placed horizontally on the main body. The lower section of the pins of the bypass diode 3 is perpendicular to the printed circuit board 4 and is welded to the conductive layer. The upper section of the pins of the bypass diode 3 and the tube body 31 Bend to a horizontal state, make the outer surface of the tube lean against the upper surface of the aluminum radiator 5, and press and fix the tube bo...
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The invention relates to a photovoltaic junction box structure used in a photovoltaic solar power generation system, and in particular relates to a circuit board type photovoltaic junction box which comprises a box body, a junction terminal connected with conductors of different phases, and bypass diodes connected between the conductors of different phases, the conductors are formed into a conductive layer printed on a printed circuit board; the printed circuit board is arranged at the bottom of the box body; pins of the bypass diode are connected with the conductive layer of the conductors in a welding manner. The photovoltaic junction box structure has the advantages that firstly, a printed circuit board structure which is convenient to manufacture, small in material consumption and low in cost is adopted, and meanwhile the overall size of the junction box can be reduced; secondly, due to adoption of the bypass diode with bent tube pins, the overall size is further reduced, and meanwhile the heat radiation of the bypass diode is enhanced.
Description
technical field [0001] The invention relates to a photovoltaic junction box structure used in a photovoltaic solar power generation system, in particular to a circuit board type photovoltaic junction box. Background technique [0002] Photovoltaic junction box is a component used for line tapping in photovoltaic solar energy system. A common photovoltaic junction box includes a box body and multi-phase conductors installed in the box body. Bypass diodes are connected between the phase conductors. The photovoltaic junction box of the existing structure has the following problems: 1. The conductors of each phase are usually molded metal parts, which not only have high manufacturing costs and material costs, but also occupy a large space, increasing the overall size of the junction box; 2. Wiring During the working process of the box, the bypass diode is the main heating element. The usual heat dissipation structure is mainly to conduct heat conduction and heat dissipation to t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02S40/34
CPCY02E10/50
Inventor 陆浩
Owner 江苏柏森电气有限公司(港商独资)