The electricity output of box base

Power output junction box

The invention relates to a box base, in particular to a box for connecting a power output module of a solar photovoltaic device and a power output junction box of a power supply system.

The power output junction box is a power connection item that is applied to a solar photovoltaic device and can transmit power generated by the power generation module to a power supply system. The power output junction box usually includes a box base, and one is mounted on the box base. An internal conductive unit, which is electrically connected to the power supply system by a conductive wire. The cartridge is usually formed of a plastic material and has a chamber for the conductive unit to be mounted.

Moreover, the power generation module of the solar photovoltaic device generally comprises: a substrate made of a transparent material such as plastic or glass, a plurality of solar cells sandwiched in the substrate, and a frame surrounding the outer periphery of the substrate. The solar cell is further electrically connected to the conductive unit of the power output junction box by a conductive wire, and the power output junction box is generally adhered to the substrate and adjacent to the edge of the substrate for the purpose of facilitating the solar energy. The battery is electrically connected.

It is known that the power output junction box can transmit the electric energy generated by the solar photovoltaic device to the power supply system, but when assembled, the conductive wires electrically connected to the solar cells generally protrude from the edge of the substrate, and the power output wiring The cartridge is typically mounted at a location near the edge of the substrate for electrical connection to the solar panels and is flush with the edge of the substrate. This kind of combination relationship caused by the structural limitation will cause the frame to be retracted outward. Therefore, the power generation module is bulky after assembly. In order to improve the above defect, although a notch for the conductive wire to protrude may be formed on the substrate while the power output junction box is moved to the inner side of the substrate, a notch adjacent to the edge is formed on the substrate. The structural strength of the substrate is lowered, especially when an external pressing force is applied adjacent to the recess, the substrate is damaged. The present invention is mainly directed to the improvement of the box of the power output junction box, so as to withstand the external pressing force together with the substrate having the notch.

SUMMARY OF THE INVENTION The object of the present invention is to provide a housing for a power output junction box that is suitable for mounting on a substrate having a recessed power module and that can withstand external pressing forces with the substrate.

The cartridge of the novel power output junction box is mounted on a substrate of a power generation module, the substrate has a mounting surface, and a recess adjacent to the edge, and the housing includes a mounting surface mounted on the substrate a box body on the upper side, and a protruding plate protruding from the box body and corresponding to the recess of the substrate, the box body having at least one frame facing the mounting surface of the substrate, and the protruding plate comprises A plate base facing the recess, the height difference between the base surface of the plate and the seating surface of the casing body being equal to the thickness of the substrate.

The utility model has the beneficial effects that the design of the protruding plate of the above-mentioned box seat can fill the gap of the notch of the substrate and bear the external pressing force together with the substrate, so the box of the power output junction box of the novel type For a substrate having a notch, it does have a better protective effect.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIGS. 1 to 4, a preferred embodiment of the cartridge 1 of the present invention is suitable for mounting on a power module 2 of a solar photovoltaic device. The power module 2 generally includes a transparent substrate 21 a plurality of solar cells 22 sandwiched inside the substrate 21, and a frame 23 surrounding the outer periphery of the substrate 21, the substrate 21 having a mounting surface 211, a plate side 212 perpendicular to the mounting surface, and A concave surface 214 is recessed inwardly from the side surface 212 of the plate and defines a recess 213. The concave surface 214 is arcuately concave.

The power output junction box of this embodiment can be electrically connected to the solar battery 22 of the power generation module 2 to transmit the power generated by the solar battery 22. Since the improvement of the embodiment is independent of the power transmission, it will not be described in detail. The cartridge holder 1 of the present embodiment comprises: a cartridge body 11 assembled on the mounting surface 211 of the substrate 21, and a tab plate 12 integrally protruding from the cartridge body 11 and corresponding to the recess 213 of the substrate 21.

The box body 11 includes a rectangular surrounding wall 111, a side wall 112 between the surrounding wall 111 and facing the mounting surface 211 of the substrate 21, and a plurality of side walls 112 projecting toward the mounting surface 211 and spaced apart The ledge strip 113. The surrounding wall 111 has a protruding ring frame 114 that surrounds the side wall 112 and protrudes, and the protruding strips 113 respectively have a seating surface 115 protruding from the protruding ring frame 114.

The protruding plate 12 of the present embodiment is integrally protruded from the box body 11 and is formed and sized to cooperate with the notch 213 of the substrate 21. The protruding plate 12 includes an arc facing the concave surface 214 of the substrate 21. The protrusion surface 121, a flat surface 122 adjacent to the arcuate surface 121 and adjacent to the outer side, and a plate surface 123 and a plate base surface 124 connected between the arcuate surface 121 and the flat surface 122. A height difference 10 is formed between the base surface 124 of the plate and the seating surface 115 of the ledge strips 113. The height difference 10 is equal to the thickness 20 of the substrate 21, and the plate clamping surface 123 is spaced apart from the plate base surface 124. And protruding from the surrounding wall 111 of the box body 11 for the frame 23 to be clamped.

When the power output terminal box of the embodiment is mounted on the power generation module 2, the protruding plate 12 of the box base 1 is first corresponding to the notch 213 of the substrate 21 of the power generation module 2, and then the adhesive or other manner is adopted. The housing 1 is fixed to the mounting surface 211 of the substrate 21 of the power module 2, and after installation, the flat surface 122 of the protruding plate 12 of the housing 1 is flush with the side surface 212 of the substrate 21, that is, the box The box body 11 of the base 1 is retracted inwardly with respect to the side surface 212 of the base plate 21, and the frame 23 of the power generating module 2 is wrapped around the periphery of the base plate 21 while being clamped against the board of the cassette base 1. Above the grip surface 123, thereby the cassette holder 1 is firmly joined.

After assembly, since the seating surface 115 of the ledge strip 113 of the box body 11 abuts against the mounting surface 211 of the substrate 21, the board base surface 124 of the protruding board 12 and the protruding frame 113 The height difference 10 between the facing faces 115 is equal to the thickness 20 of the substrate 21, and therefore, the design of the protruding plate 12 can fill the notch 213 of the substrate 21. When the power output junction box is mounted on the substrate 21 having the recess 213, and the substrate 21 is subjected to the pressing force, the box 1 of the power output junction box has the protruding plate 12, and the protrusion The plate 12 just fills the notch 213 of the substrate 21. Therefore, the design of the protruding plate 12 can share the pressing force of the substrate 21 to prevent the substrate 21 from being damaged when pressed, so the power output junction box of the present invention The cassette holder 1 is not only structurally innovative, but also can distribute the force of the substrate 21 having the recess 213 to provide a better protection effect of the substrate 21.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

<p>1. . . Box seat</p><p>10. . . Height difference</p><p>11. . . Box body</p><p>111. . . Around the wall</p><p>112. . . Side wall</p><p>113. . . Spike strip</p><p>114. . . Ring frame</p><p>115. . . Rack</p><p>12. . . Burst plate</p><p>121. . . Arc face</p><p>122. . . Straight face</p><p>123. . . Plate face</p><p>124. . . Plate base</p><p>2. . . Power generation module</p><p>20. . . thickness</p><p>twenty one. . . Substrate</p><p>211. . . Mounting surface</p><p>212. . . Side of the board</p><p>213. . . Notch</p><p>214. . . Concave surface</p><p>twenty two. . . Solar battery</p><p>twenty three. . . frame</p>

1 is a perspective view of a preferred embodiment of a cartridge of the present power output junction box;

2 is a rear view of the preferred embodiment, illustrating the correspondence between the box base and a power generating module;

3 is a side elevational view of the preferred embodiment, illustrating the correspondence between the housing and a substrate of the power generation module;

4 is a partial perspective view of the preferred embodiment, and is also used to illustrate the relative relationship between the housing and the substrate.