JPH0519967Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Technical field to which the idea belongs]

This invention has a built-in solar battery element group in which multiple solar battery elements are connected in series and parallel, and by connecting multiple solar battery elements in series or in parallel, the desired voltage and current can be extracted from the output terminal. Regarding the structure of a solar cell module.

[Prior art and its problems]

When generating electricity using solar cells, there is a theoretical limit to the output of a single solar cell element, so in order to obtain high output, multiple solar cell elements are connected in series and parallel to form a solar cell module. do. The solar cell modules thus formed are further arranged in parallel or in series on a plane and wired to each other to form a high output solar cell panel. When assembling modules to form a panel, it is necessary to attach the modules to the panel support and to electrically connect the modules using connection cables. Both the installation work and the connection work are time-consuming and cause malfunctions, and the required members increase the weight. In addition, when changing the wiring once installed and connected,
This requires more labor and more parts, which worsens workability and increases manufacturing costs.

[Purpose of the invention] In view of the above-mentioned circumstances, this invention was developed to create a solar cell module that can simultaneously perform the work of mechanically connecting modules and the work of electrically connecting them with simple operations, is easy to manufacture, and has low manufacturing costs. The purpose is to provide

[Key points of the idea]

According to the present invention, in order to achieve the above object, in a solar cell module housing a group of solar cell elements in which a plurality of solar cell elements are connected in series and parallel inside a box, one side of the box a push-type changeover switch having a push-button that is provided on the body and can move forward and backward between a first position and a second position, and a contact that moves as the push-button advances and retreats, and corresponds to the push-button on the other side of the box a movable piece that closes or opens the opening; a first convex terminal and a second convex terminal provided on the other side of the box; a first concave terminal and a second concave terminal provided on the one side surface of the box at positions corresponding to the first convex terminal and the second convex terminal, respectively; a second convex terminal and the second concave terminal are connected, and when the push button is located in the first position, the first convex terminal and the second concave terminal a terminal is connected to the solar cell element group through the contact, and the first convex terminal and the first concave terminal are connected through the contact, and the push button is connected to the first convex terminal through the contact. When located at the second position, the first convex terminal and the first concave terminal are connected via the solar cell element group and the contact point.

[Example of idea]

Figures 1 to 3 show examples of this invention; Figure 1 is a wiring diagram of the solar cell module;
The figure is an external perspective view of the solar cell module seen from one side, and FIG. 3 is an external perspective view of the same as seen from the other side. A circuit containing a solar cell element group 2 in which a plurality of solar cell terminals are connected in series and parallel and a push-type changeover switch 3 is formed inside the box 1, and one terminal of this circuit is connected to one side of the box 1. The other terminal is connected to two convex terminals 6, 7 arranged on the other side of the box 1. This concave terminal 4,
5 and the convex terminals 6 and 7 are provided at corresponding positions, so when the adjacent modules are mated on both sides, the convex terminals fit into the concave terminals, and both modules are mechanically connected. and electrically connected. To switch between series and parallel electrical connections, there is a push button 8 of the push switch 3 on one side of the box 1.
protrudes, an opening 9 is provided on the other side, and a movable piece 10 for closing or opening the opening 9 is provided. As shown in FIG. 3, the movable piece 10 may have a structure in which a flat plate is screwed, a hinge attached to one side of the flat plate, or a structure in which the flat plate is slid in the longitudinal direction. The role of this movable piece 10 is to connect the modules on both sides, and when the opening 9 is closed with the movable piece 10, the push button 8
If the contact of the pushbutton changeover switch 3 is changed by pushing in, and if the movable piece 10 is removed and the opening 9 is opened, the tip of the pushbutton 8 will be inserted into the opening 9.
The contacts of the push-type changeover switch 3 cannot be changed due to the contact of the push-type changeover switch 3. Now, to explain the configuration of FIG. 1, in this case, the push button 8 is located in the "first position" when the movable piece of the adjacent module is open, and the convex terminal 6 and the concave terminal Terminal 5 is connected to solar cell element group 2 via contact 80 . Further, the convex terminal 6 and the concave terminal 4 are connected via a contact 80. When the movable piece of the adjacent module is closed, the push button 8 is pushed to the left in the figure and is located in the "second position". At that time, the convex terminal 6 and the concave terminal 4 are connected to the solar cell element group 2 via the contact 80. In both of the above two cases, the convex terminal 7 and the concave terminal 5 are connected. When such modules are connected in parallel, they are connected as shown in FIG. Figure 4 shows a connection of three modules with the same structure, and each component is numbered according to the number shown in Figure 1.
11 is a socket. In this case, the openings 9a, 9b, 9c of each module are respectively movable pieces 10.
It is blocked by a, 10b, and 10c. Therefore, the push buttons 8a, 8b are pushed in to switch the contacts of the push switch, and the solar cell element groups 2a, 2b, 2c are connected in series as shown in FIG. Next, when connecting modules in parallel, connect them as shown in FIG. FIG. 6 shows a combination of three modules having the same structure, and the reference numerals of each component are the same as in FIG. 4. In this case, the movable pieces 10a, 10b, 10c blocking the openings 9a, 9b, 9c of each module are removed to open them. Therefore, the tips of the push buttons 8a, 8b enter the openings 9b, 9c, and the contacts of the push type changeover switch cannot be switched, so the solar cell element groups 2a, 2b, 2c are connected in parallel as shown in FIG. Next, a plurality of connected modules having the configuration shown in FIGS. 4 and 6 are connected as one unit (hereinafter referred to as a basic panel), and
The case of configuring a larger solar cell panel will be described. When using such large solar panels, it depends on the purpose of use (for example, for the roof of a solar house), the specifications of the inverter that converts the output power of the solar cells into AC, and the installation space for the solar panels. , the current and voltage specifications of the system change. In such a case, it is desirable that the solar cell modules can be arranged in series and parallel in a matrix. In the case of the device shown in FIG. 4, two basic panels having the same configuration as shown are arranged, and the positive convex terminals 6a and the negative convex terminals 7a are connected using, for example, flexible connectors. By connecting them together, a solar cell panel can be constructed as a 3-series x 2-para matrix module. Also, in the case of the device shown in Fig. 6, two basic panels having the same configuration as shown are arranged side by side, and one positive convex terminal 6a and the other negative convex terminal 7a are connected using a flexible connector. By connecting them together, a solar cell panel can be constructed as a 3-parameter x 2-series matrix-like module.

[Effect of the idea]

According to the present invention, as a result of adopting the above configuration,
It has the following effects. Individual solar cell modules can be connected with a single touch. By adopting a movable piece, switching between series and parallel can be easily performed. If all solar cell modules are of the same structure, the cost required for manufacturing the modules can be reduced. When manufacturing a matrix solar cell panel by connecting multiple basic panels, the structure of the solar cell module is simple, so assembly is easy.
The dimensional accuracy during assembly can be improved, and the reliability of the concave terminal and convex terminal can be maintained at a high level.

[Brief explanation of the drawing]

Fig. 1 is a wiring diagram of a solar cell module that is an embodiment of this invention, Fig. 2 is an external perspective view of the same solar cell module as seen from one side, and Fig. 3 is an external perspective view of the same solar cell module as seen from the other side. Fig. 4 is a wiring diagram when three solar cell modules are connected in series, Fig. 5 is an equivalent circuit diagram of Fig. 4, and Fig. 6 is a wiring diagram when three solar cell modules are connected in parallel. 7 is an equivalent circuit diagram of FIG. 6. 1, 1a, 1b, 1c...Box, 2, 2a, 2
b, 2c...Solar cell element group, 3...Push type changeover switch, 4, 4a, 4B, 4c, 5, 5
a, 5b, 5c...concave terminal, 6, 6a,
6b, 6c, 7, 7a, 7b, 7c... Convex terminal, 8, 8a, 8b, 8c... Push button, 9, 9a, 9b, 9c... Opening, 10, 1
0a, 10b, 10c...movable piece, 80... contact.

Claims (1)

[Scope of utility model registration request] In a solar cell module that houses a group of solar cell elements in which a plurality of solar cell elements are connected in series and parallel inside a box body, the solar cell module is provided on one side of the box body and moves back and forth between a first position and a second position. a push-type changeover switch having a push button that can be pushed and a contact that moves as the push button advances and retreats; an opening provided on the other side of the box body at a position corresponding to the push button; and a switch that closes the opening. or a movable piece that opens, a first convex terminal and a second convex terminal provided on the other side of the box, and a first convex terminal provided on the one side of the box, respectively. a first concave terminal and a second concave terminal provided at positions corresponding to the terminal and the second convex terminal, wherein the second convex terminal and the second concave terminal and when the push button is located in the first position, the first convex terminal and the second concave terminal are connected to each other through the solar cell element group and the contact point. and the first convex terminal and the first concave terminal are connected through the contact point, and when the push button is located in the second position, the first convex terminal A solar cell module characterized in that the shaped terminal and the first concave terminal are connected via the solar cell element group and the contact point.