KR101156491B1 - Junction box and solar battery module having the same - Google Patents

Abstract

PURPOSE: A junction box and a photovoltaic module including the same are provided to efficiently execute an assembling process of the junction box by effectively guiding and laminating the junction box. CONSTITUTION: A pair of terminals is formed on both sides of a main body member. The pair of terminals is welded to a ribbon prepared in a module main body. A shield is combined to the main body member and supports the pair of terminals. A stacking guide(121) successively laminates the main body member in a loading space. A guide bar(123) guides the main body member on a loading table(124). The guide bar is installed in the inner side of the stacking guide. A guide hole(122) passes through the main body member. A protective jacket is connected to a cable connector(180a).

Description

Junction box and solar module having same {Junction box and solar battery module having the same}

The present invention relates to a junction box and a photovoltaic module having the same, and more particularly, to a junction box which can be managed while stacking the junction boxes effectively, and a junction box capable of more efficiently performing the assembly process of the junction box and the same. It relates to a solar module provided.

Due to the depletion of chemical energy such as coal and petroleum and environmental pollution due to the use of chemical energy, efforts are being made to develop alternative energy. One of them is photovoltaic power generation using solar energy. Photovoltaic power generation is a series of technologies that convert solar energy (solar heat or sunlight) into electrical energy.

Briefly, the basic principle is that when solar light is irradiated to a solar cell composed of a pn junction semiconductor, electron and hole pairs are generated by light energy, and electrons and holes move across the n and p layers. The electromotive force is generated by the photovoltaic effect through which the current flows, and the result of the current flowing to the externally connected load is used.

As described above, in order to convert the solar energy in the indefinite and pollution-free into electric energy, the development of a technology for a solar battery module for condensing sunlight is required.

Briefly, the production process of the solar module. First, when a plurality of cells (approximately square or rectangular) are supplied, a plurality of cells are arranged in a row. Next, a plurality of cells arranged in a row are connected with a plurality of cell connector ribbons adjacent to each other while considering the positive (+) and the negative (-) to form a string of one unit of bundle, and the strings are directed in the plane direction. After arranging several wires together, the string connector ribbons exposed to one side of the strings are connected by a plurality of string connector ribbons so that all the cells are energized to manufacture one string assembly.

Then, the first EVA sheet (E.V.A sheet), the string assembly, the second EVA sheet, and the back sheet for the waterproof film is disposed on the upper surface of the glass substrate and laminated to form a solar panel. Subsequently, one solar module is completed by assembling a frame on the outside of the solar panel to make a module body, and assembling a junction box on the module body.

Although briefly described, a single solar module needs to go through a number of processes, that is, a plurality of devices or systems for performing the process.

It is difficult to easily access or invest in the PV industry as it is regarded as important as the next generation industry because PV modules can be produced only with such diverse and complex devices or systems and the facilities encompassing them.

Therefore, to date, research activities on various devices or systems for producing solar modules are continued, and there are not many known technologies for various devices or systems of solar module production facilities.

On the other hand, as described above, there is a step of assembling the junction box in the production process of the solar module.

Given that one junction box should be used for each solar module, and that the junction box assembly process must be carried out continuously, the junction box must be managed while being guided and stacked with certain rules in a certain loading space. It can be uniform and error-free to transfer the loaded junction box to the solar module.

However, the junction boxes known to date do not have a structure for stacking junction boxes, and thus, an improved structure for the junction boxes is required.

SUMMARY OF THE INVENTION An object of the present invention is to provide a junction box and a solar module including the junction box, which can be managed while stacking the junction boxes effectively so as to more efficiently perform the assembly process of the junction box.

According to the present invention, the main body portion is provided with a terminal (terminal) is welded with a ribbon (ribbon) provided in the module body of the solar module; And a stacking guide provided on one side of the main body to guide stacking of the main body along the height direction.

Here, the stacking guide may be formed to protrude along the direction in which the main body is stacked in the corner region of the main body, and a guide hole through which the guide bar for guiding the main body may be formed in the stacking guide. .

The stacking guide may have a truncated cone shape, the diameter of which is narrowed upward.

It may further include a shield coupled to the main body to support the terminal, protruding in a direction crossing the plate surface of the main body, wherein the stacking guide is symmetrically paired on both sides of the shield based on the shield. Can be prepared.

It may further include at least one handling gripping portion provided on the main body to form a place to be gripped by the robot handling the main body.

The handling gripping portion may include a handling gripping body connected to the main body portion; And a handling gripping flange that is bent and extended with respect to the handling gripping body at an upper end of the handling gripping body.

The terminal may be a flat terminal disposed parallel to the plate surface of the module body, and the flat terminal and the ribbon may be welded to each other by an indirect welding method. An embossing protrusion protruding from the plate surface may be further formed on one side to increase the bondability when bonded to the ribbon.

On the other hand, the object is, according to the present invention, a module body having a ribbon (ribbon); And a junction box having a main body provided with a terminal welded to the ribbon, and a stacking guide provided at one side of the main body to guide the main body stacked along a height direction. It is also achieved by a solar module.

Here, the stacking guide may be formed to protrude along the direction in which the main body is stacked in the corner region of the main body of the junction box, and a guide hole through which a guide bar for guiding the main body passes through the stacking guide. Can be.

The stacking guide may have a truncated cone shape, the diameter of which is narrowed upward.

The junction box may further include a shield coupled to the main body to support the terminal and protruding in a direction intersecting the plate surface of the main body, wherein the stacking guide is provided at both sides of the shield based on the shield. It may be provided symmetrically in a pair.

The junction box may further include at least one handling gripping part provided on the main body and forming a place where the robot handling the main body grips.

The handling gripping portion may include a handling gripping body connected to the main body portion; And a handling gripping flange that is bent and extended with respect to the handling gripping body at an upper end of the handling gripping body.

The terminal may be a flat terminal disposed parallel to the plate surface of the module body, and the flat terminal and the ribbon may be welded to each other by an indirect welding method. An embossing protrusion protruding from the plate surface may be further formed on one side to increase the bondability when bonded to the ribbon.

According to the present invention, the junction boxes can be effectively managed while stacking guides, and thus the assembly process of the junction boxes can be performed more efficiently.

1 is a perspective view showing step by step the process of producing a solar module according to an embodiment of the present invention.
2 (a) and 2 (b) are cross-sectional structural diagrams of a solar panel before and after a laminating process, respectively.
3 is a front view of the module body of the solar module.
4 is a perspective view of the junction box.
5 is a partially exploded perspective view of FIG. 4.
6 is a perspective view of a cathode and an anode protective jacket of a junction box.
7 and 8 are views illustrating a process of welding the flat terminal of the junction box, respectively.
9 is a view schematically showing a state in which the junction box is loaded on the loading table of the loading space.
10 is a view schematically showing a process of measuring the output of the solar module.
11 is a perspective view of a state in which a plurality of solar modules assembled with a junction box are connected.
12 is a diagram illustrating a state in which a junction box is loaded according to another embodiment of the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a perspective view showing a step by step process of producing a solar module according to an embodiment of the present invention, Figure 2 (a) and (b) is a cross-sectional structure diagram of the solar panel before and after each laminating process, 3 is a front view of the module body of the solar module.

1 to 3, the production process of the solar module 1 (see FIG. 11) will be briefly described. For reference, the solar module 1 (see FIG. 11) includes a junction box 100 (see FIG. 11) assembled to the module body 20 and the module body 20 of FIGS. 1 to 3.

First, the module main body 20 will be described first. As shown in (a) of FIG. 1, cells (2, cells) of approximately square or rectangular shape are arranged in a row of 10 as shown in (b) of FIG. 1, and the cells (2) arranged in a row are positive (+) and negative electrodes. Considering (-), the adjacent ones are connected by a plurality of cell connector ribbons 3 to form a string 4 of one unit of bundle.

Then, after arranging six strings 4 in the plate direction as shown in FIG. 1C, the cell connector ribbons 3 exposed to one side of the strings 4 are transferred to the plurality of string connector ribbons 5. The string assembly 6 is connected so that 60 cells 2 are energized with each other.

Next, as shown in (a) of FIG. 2, a first EVA sheet 11, an EVA sheet, a string assembly 6, a second EVA sheet 12, and a back sheet 13 are formed on the upper surface of the glass substrate 10. , back sheets) are placed in this order and laminated to fabricate a solar panel 8 as shown in FIG.

Then, as shown in (b) of FIG. 2, trimming of the EVA sheet dummy 8a (a EVA sheet dummy) in which a part of the first and second eva sheet 11, 12 flows down to the side of the solar panel 8 is performed. Finally, the module body 20 is completed by assembling the frame 7 outside the solar panel 8 as shown in FIGS. 1 and 3.

After the module main body 20 is completed, one solar module 1 (see FIG. 11) is completed by assembling the junction box 100 to the module main body 20.

In the present embodiment, a total of 60 cells 2 are used in one module main body 20, and three rows of cell connector ribbons 3 are used in manufacturing the string 4 as shown in FIG. In the manufacturing of the string assembly 6, as shown in FIG. 1C, a total of seven string connector ribbons 5 are used as different lengths.

Of course, this is only manufactured in one embodiment and the scope of the present invention need not be limited to the shape of the module main body 20 shown. That is, the number and size of the cells 2 and the number and size of the center and string connector ribbons 3 and 5 may be changed depending on the situation.

Meanwhile, as shown in FIG. 2, some of the string connector ribbons 5 of the string assembly 6 (in this embodiment, four) are exposed in the process of manufacturing the solar panel 8. The ribbons 9 exposed to the outside are electrically connected to the flat terminals 130 (see FIG. 4) and the corresponding ones of the junction box 100 during the assembly process of the junction box 100 (junction box, see FIG. 11). Welding).

Here, the ribbon 9 exposed to the outside is not manufactured separately but is a part of the string connector ribbon 5. However, since the ribbon 9 exposed to the outside is electrically connected by welding with the flat terminal 130, reference numerals are given differently. As will be described later in detail, the ribbon 9 and the flat terminal 130 are joined to each other by an indirect welding method and electrically connected to each other, unlike the related art.

The flashing process of measuring the output of the solar module assembled to the junction box 100 while electrically connecting the ribbons 9 of the module body 20 and the flat terminals 130 of the junction box 100 as described above. If it proceeds smoothly until the production of the solar module (1) is completed.

Hereinafter, the structure of the junction box 100 electrically connected to the module body 20 for manufacturing the solar module 1 will be described in detail with reference to FIGS. 4 to 9.

Figure 4 is a perspective view of the junction box, Figure 5 is a partially exploded perspective view of Figure 4, Figure 6 is a perspective view of the negative and positive protective jacket of the junction box, Figures 7 and 8 are respectively welded flat terminal of the junction box FIG. 9 is a view schematically illustrating a process in which a junction box is loaded on a loading table in a loading space.

As shown in these drawings, the junction box 100 of the present embodiment includes a main body provided with a terminal 130 welded to a ribbon 9 provided on the module main body 20 of the solar module 1. The unit 110 and a stacking guide 121 provided at one side of the main body 110 to guide stacking of the main body 110 along the height direction.

The main body 110 is provided in the form of a plate of a plate-shaped body having a constant thickness, and a through portion 110a is formed in the central region. A plurality of flat terminals 130 are disposed in a horizontal state in the through portion 110a.

The shield 111 having a wall shape surrounding the plurality of flat terminals 130 is provided in the through part 110a. After the flashing process is completed, the inside of the shield 111 may be filled with a sealing material. In this case, the through part 110a may be completely sealed to the outside.

A pair of terminals 115 are provided at both sides of the main body 110 so as to be symmetrical with each other. One end of the cable 182 (see FIG. 10) is connected to each terminal 115, and the other end of the cable 182 is connected to the cable connectors 180a and 180b electrically connected to the protective jackets 160 and 170. Connected.

In the present embodiment, the terminal 130 provided in the main body 110 is applied as a flat terminal 130 disposed parallel to the plate surface of the module main body 20.

In other words, the flat terminal 130 is provided on the upper surface of the main body 110, but arranged in a side-by-side direction, that is, in a horizontal state on the plate surface of the main body 110. As described above, since four ribbons 9 on the side of the module main body 20 are provided, four flat terminals 130 are provided in the same manner as the ribbon 9. However, the scope of the present invention need not be limited thereto.

The flat terminal 130 is in contact with and supported on the upper surface of the body portion 110 in the through portion (110a) region. One end of the flat terminal 130 extends from the shield 111 and the other end is provided as a free end in the central region of the through part 110a. The flat terminal 130 is connected to the shield 111 and is disposed inside the shield 111 to be protected from the shield 111 at normal times.

An embossing protrusion 131 protruding upward is formed on one upper surface of the flat terminal 130. The embossing protrusion 131 serves to increase the bonding area when bonded to the ribbon 9 so that the bonding property is improved.

Of course, the embossing protrusion 131 is not necessarily formed, and if necessary, the embossing protrusion 131 may be excluded in configuration.

The flat terminal 130 is electrically connected to the pair of the location flashing terminals 150a and 150b. To this end, although not shown in the figure, a plurality of electrodes (not shown) and means disposed between the electrodes to induce a selective flow of current as a means for energizing them inside the main body portion 110 to allow current to flow. A circuit provided with a diode (not shown) is provided.

The flat terminal 130 may be welded to each other by the indirect welding method with the ribbon 9 as shown in FIGS. 7 and 8.

As in the present embodiment, since the indirect welding method, which is a downward welding method such as arrows A and B of FIG. 8, is applied, even if the position of the junction box 100 is slightly distorted, welding is possible. There is no need for precise control associated with the placement, and the welding time can be shortened because all flat terminals 130 can be welded at once. In addition, since it is not a tong-type welding method as in the related art, a phenomenon in which thermal deformation is caused in components on the module main body 20 side electrically connected to the ribbon 9 can be reduced.

The stacking guide 121 serves to guide the junction box 100 to be stacked along the height direction as shown in FIG. 9.

In other words, as shown in FIG. 9, the stacking guide 121 stacks the main body 110 in a loading space before installing the junction box 100 in the module main body 20. do.

In addition, it also serves to easily separate one junction box 100 from the plurality of junction boxes 100 stacked in the loading space to be supplied to the assembly process of the junction box 100.

The stacking guides 121 are provided in pair in a symmetrical manner in the corner region of the main body 110.

In addition, the stacking guide 121 has a truncated cone shape in which the diameter becomes narrower toward the top, and the guide bar 123 for guiding the main body 110 on the stacking table 124 passes through the stacking guide 121. Guide holes 122 (see FIG. 4) are formed.

The diameter of the guide hole 122 is at least larger than the diameter of the guide bar 123, and the guide hole 122 is formed to penetrate the body part 110.

By the stacking guide 121 as described above, a plurality of junction boxes 100 may be sequentially and uniformly stacked on the guide bar 123 on the stacking table 124 as shown in FIG. 9. By the robot can easily handle the junction box (100).

Around the stacking guide 121, a handling gripping portion 118 which is symmetrical with respect to the shield 111 and protrudes in the same direction as the shield 111 is provided as a pair.

As illustrated in FIGS. 4 and 5, the handling gripping portion 118 moves the separately manufactured junction box 100 onto the module main body 20 when assembling the junction box 100 to the module main body 20. The robot may be used as a part held by the robot.

Although the handling gripping portion 118 is manufactured in the shape of a Korean letter "a" in the figure, the scope of the present invention is not necessarily limited to the shape of the figure. This handling gripping portion 118 is disposed in an area adjacent to the protective jackets 160 and 170 on the body portion 110.

The handling gripping portion 118 extends from the handling gripping body 119 at the upper end of the handling gripping body 119 connected to the main body 110 and the handling gripping body 119 as shown in FIG. 4. Handling gripping flange 120 is included.

At this time, since the cross-sectional area of the handling gripping flange 120 is formed relatively larger than the handling gripping body 119, the robot (not shown) can be gripped relatively easily.

And the height of the top of the handling gripping portion 118 relative to the plate surface of the main body 110 may be formed relatively higher than other components of the main body 110, in this case, the main body 110 is vertical as shown in FIG. When stacked in order in the direction, it is possible to secure the separation distance from the other main body portion 110 to be stacked from above.

Through the handling gripping portion 118 having such a configuration, the junction box 100 can be easily transferred onto the module body 20 from the loading table 124 of the loading space in which the junction box 100 is loaded. There is this.

On the other hand, the junction box 100 of the present embodiment is provided in the main body 110, a pair of location flashing terminal (150a, 150b) to form an electrical measurement point for measuring the output of the solar module (1) , an additional flashing terminal, and a pair of cable connectors 180a and 180b electrically connected to each other by a pair of terminals 115 and a cable 182 (see FIG. 10) formed in the main body 110. ) And one pair of junction flashing terminals 150a and 150b and one pair of cable connectors 180a and 180b to protect the junction flashing terminals 150a and 150b and to protect the cable connectors 180a and 180b. It is connected to the) and includes a protective jacket (160, 170, protective jacket) is detachably assembled to the body portion (110).

As will be described later, the location flashing terminal (150a, 150b) is a measuring point provided in the junction box 100 in order to facilitate the flashing process when performing the flashing process is necessarily in the junction box 100 of the present embodiment It does not have to be formed.

In other words, if the location flashing terminals 150a and 150b are provided, the flashing process may be performed more smoothly. However, even if the junction box (not shown) is not equipped with the location flashing terminals 150a and 150b. It should be said that it belongs to the scope of the invention. In the following embodiment, the junction box 100 provided with the location flashing terminals 150a and 150b will be described as shown in the drawings.

The location flashing terminals 150a and 150b are electrically connected to the flat terminal 130 to form a terminal of an electrical measuring point for measuring the output of the solar module 1. The location flashing terminals 150a and 150b are disposed outside the shield 111 and exposed to the outside.

In this embodiment, the portion flashing terminal (150a, 150b) is formed of a material of the energizing material. Also, the location flashing terminals 150a and 150b are provided in pairs of two cathodes and one anode, and each of them is connected to an output measuring device (T, see FIG. 10) capable of measuring the output of the module main body 20. The flashing process can be performed.

In this embodiment, the junction flashing terminals 150a and 150b are connected to the protective jackets 160 and 170 to form a body with the protective jackets 160 and 170, but the junction flashing terminals 150a and 150b are formed. And protective jackets 160 and 170 may be individually manufactured as separate pieces and electrically connected to each other.

The pair of protective jackets 160 and 170 have one side electrically connected to the location flashing terminals 150a and 150b, and the other side is electrically connected to the cable connectors 180a and 180b. Accordingly, current supplied to the location flashing terminals 150a and 150b may flow through the cable 182 (see FIG. 10) connected to the cable connectors 180a and 180b.

Such protective jackets 160 and 170 are provided in pairs as with the flashing terminals 150a and 150b, as shown in detail in FIG.

That is, the protective jackets 160 and 170 may include a negative protective jacket that connects the negative electrode junction flashing terminal 150a and the negative cable connector 180a between the negative electrode junction flashing terminal 150a and the negative cable connector 180a. And a positive protective jacket 170 connecting the positive electrode location flashing terminal 150b and the positive cable connector 180b between the positive electrode junction flashing terminal 150b and the positive cable connector 180b. .

The negative protective jacket 160 and the positive protective jacket 170 have only the shapes different from each other for the connection between the negative cable connector 180a and the positive cable connector 180b, and their functions are the same.

The negative protective jacket 160 is connected to the negative electrode jacket flashing terminal 150a, the negative electrode jacket body 162, and the negative electrode jacket body 162 is connected to form a single body and the negative electrode jacket body 162, It includes a cathode jacket flange 165 to which the negative cable connector 180b is connected at one side.

The negative electrode jacket body 162 is formed with a negative electrode through hole 164 along the axis. Although not shown in the inside of the negative electrode jacket body 162 is provided with an electrical element that is electrically connected to the cable connectors (180a, 180b).

The outer surface of the negative electrode jacket body 162 is provided with a pair of negative electrode coupling hook 163 for coupling to the body portion 110. The negative electrode coupling hook 163 may be provided in a tong shape to easily fix the negative electrode protective jacket 160 to the main body 110 of the junction box 100. One end of the negative electrode jacket body 162 is connected to the negative electrode portion flashing terminal (150a).

The negative jacket flange 165 is formed extending from one side of the negative electrode jacket body 162. The negative electrode jacket body 162 and the negative electrode jacket flange 165 have a negative electrode through hole 164 formed along an axis of the negative electrode jacket body 162 and the negative electrode jacket flange 165.

The negative electrode jacket flange 165 is provided with a cable connection hook hole 166 for receiving the cable connection hook 183 of the negative electrode cable connector 180a. In this embodiment, two cable connection hooks 183 are provided at right and left sides, and correspondingly, two cable connection hook holes 166 are also provided. However, the scope of the present invention does not need to be limited thereto, and if the cable connector 180a and the protective jacket 160 are coupled to each other, the number or shape of the cable connection hook holes 166 may vary. There is no need to be limited.

Similar to the negative protective jacket 160, the positive protective jacket 170 has the same function of connecting to the cable connectors 180a and 180b, and only its shape is different. The positive protective jacket 170 includes a positive jacket body 172 and a positive jacket flange 175 extending from the positive jacket body 172 to which the positive cable connector 180b is connected.

Similar to the negative jacket body 172, the outer surface of the positive jacket body 172 is provided with a pair of positive coupling hooks 173 for coupling the positive protective jacket 170 to the main body 110. The anode protective jacket 170 may be easily coupled to the main body 110 through the anode coupling hook 173.

The anode jacket flange 175 has a substantially circular cross-sectional shape, the diameter of the cross section may be formed relatively smaller than the anode jacket body 172. The anode jacket body 172 and the anode jacket flange 175 are formed with an anode through hole 174 along the axis, and electrical elements provided therein are electrically coupled to each other.

The protective jackets 160 and 170 provided in this configuration are fixed to the junction flashing terminals 150a and 150b because the cable connectors 180a and 180b are accommodated and coupled to the cathode and anode through holes 164 and 174. In addition to partial protection, the cable connectors 180a and 180b may be easily coupled to the main body 110. Therefore, the protective jackets 160 and 170 may be kept in a separated state, or dust or foreign matter may enter the ends of the cable connectors 180a and 180b, including the portion flashing terminals 150a and 150b during transport or connection. You can prevent that.

As shown in FIG. 5, the cable connectors 180a and 180b have different shapes depending on the poles. Unlike the negative cable connector 180a, the positive cable connector 180b may further include a positive connector connector 181.

Hereinafter, a process of assembling the junction box 100 according to the present embodiment to the module main body 20 will be described.

First, the junction box 100 loaded on the stacking table 124 shown in FIG. 9 is transferred and disposed on a surface opposite to the surface on which the glass substrates 10 and 2 of the module main body 20 are provided.

When the junction box 100 manufactured separately from the module main body 20 is moved onto the module main body 20, the handle box 118 provided in the junction box 100 is transferred. Therefore, the operation of moving the junction box 100 is very convenient.

When the junction box 100 is moved, as shown in FIG. 7, the ribbon 9 is disposed adjacent to the flat terminal 130 of the junction box 100.

At this time, since the through part 110a of the junction box is configured to correspond to the interval at which the ribbon 9 is exposed, the flat terminal 130 is placed on the ribbon 9 only by arranging the junction box 100 in the correct position. Can be approached. In particular, there is no need for precise control in this arrangement as conventional.

When the ribbon 9 is disposed on the upper surface of the flat terminal 130, the ribbon 9 is partially bent as shown in FIG. 8, and then the pressure points A and B of FIG. By applying an indirect welding method according to the thermal pressure, the flat terminal 130 and the ribbon 9 can be welded to each other.

When the flat terminal 130 and the ribbon 9 are welded, when the junction box 100 is fixed to the module body 20, the process of assembling the junction box to the module body 20 is completed.

When the assembly of the junction box 100 is completed as described above, the flashing process is performed. The flashing process refers to a process of measuring, testing and classifying the output of the assembled solar module 1.

10 is a view schematically showing a process of measuring the output of the solar module.

Briefly describing the flashing process sequence, first, a separate output measuring device T is provided as shown in FIG. 10, and the output measuring device T is connected to the position flashing terminals 150a and 150b of the junction box 100. Two location flashing terminals 150a and 150b are provided, and the terminals of the output measuring device T may be connected to the cathode and the anode, respectively.

Next, the solar module 1 is flashed to illuminate artificial sunlight through a xenon lamp (not shown). Accordingly, current and voltage flow through the cathode and anode terminals of the location flashing terminals 150a and 150b. These outputs are measured to classify the solar modules 1 by grade.

As such, there is an advantage that the output amount can be easily measured through the junction flashing terminals 150a and 150b provided in the junction box 100.

The photovoltaic module 1 produced through such a configuration is installed in a place with a relatively large land area, at least tens to many hundreds. As such, when a plurality of solar modules 1 are installed, a plurality of solar modules 1 must be electrically connected to convert solar energy stored by each solar module 1 into electrical energy.

11 is a perspective view of a state in which a plurality of solar modules assembled with a junction box are connected.

First, referring to a configuration in which a plurality of solar modules 1 are connected in series, as shown in FIG. 11, the cable 182 connected to the negative terminal of one solar module 1 is directly adjacent to the solar module. A cable 182 connected to the positive terminal of (1) and connected to the positive terminal of one solar module 1 is connected to the negative terminal of the other solar module 1 next to it. In this manner, the neighboring photovoltaic modules 1 are sequentially connected and arranged in a row, and then the cable 182 connected to the negative terminal of the photovoltaic module 1 disposed at one end and the other photovoltaic module 1 By connecting the cable 182 of the positive terminal of the () to the electric generator (G) to produce a series configuration.

Of course, the cable 182 connected to the negative terminal of one solar module 1 is connected to the positive protective jacket 170 of another neighboring solar module (not shown), and one solar module ( In 1), the cable 182 connected to the positive terminal 115a may be configured in a manner of being coupled to the negative protective jacket 160 of another neighboring solar module (not shown).

Unlike this series configuration, a plurality of photovoltaic modules 1 may be configured in parallel, in which case the cable 182 connected to the negative terminal of one photovoltaic module 1 is disposed below in plan view. The cable 182 connected to the negative terminal of the optical module (not shown) and connected to the positive terminal of the one solar module 1 is connected to the positive terminal of the solar module (not shown) disposed below in plan view. You can also make a parallel configuration.

As such, according to the present exemplary embodiment, the junction boxes 100 may be managed while being stacked and guided effectively, thereby more efficiently performing the assembly process of the junction box 100.

12 is a diagram illustrating a state in which a junction box is loaded according to another embodiment of the present invention.

Referring to this drawing, the stacking guide 121a provided in the junction box 100a of the present embodiment may have a concave-convex block structure unlike the above-described embodiment, and may be loaded while being partially engaged with the concave-convex surface along the vertical direction. have.

That is, the protruding end 121b of the upper portion may be stacked in the form of being inserted into the bottom surface of the stacking guide 121a loaded on the upper portion. In this case, the lower end 121d of the stacking guide 121a is stacked on the upper portion thereof. It may be supported by the stepped portion 121c of the guide 121a. Of course, the stacking guide 121a may also penetrate inside.

Of course, the stacking guide 121a may have a variety of appearances such as a straight line shape and a tapered shape unlike in FIG. 12, and these matters should be included in the scope of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1: solar module 20: module body
100: junction box 110: main body
111: shield 118: handling grip
121: stacking guide 130: flat terminal
131: embossed projection 150a, 150b: location flashing terminal
160: cathode protective jacket 162: cathode jacket body
163: cathode coupling hook 165: cathode jacket flange
170: positive protective jacket 172: positive jacket body
175: anode jacket flange 180a, 180b: positive and negative cable connectors
181: positive connector connection 182: cable
183: cable hook

Claims (14)

A main body portion provided with a terminal welded to a ribbon provided in the module main body of the solar module; And
And a stacking guide provided at one side of the main body to guide stacking of the main body along the height direction. The method of claim 1,
The stacking guide is formed to protrude along a direction in which the main body is stacked in an edge region of the main body,
Junction box, characterized in that the guide hole through which the guide bar for guiding the main body portion is formed in the stacking guide. The method of claim 2,
The stacking guide is a junction box, characterized in that it has a truncated cone shape that narrows in diameter upwards. The method of claim 1,
A shield coupled to the main body to support the terminal and protruding in a direction crossing the plate surface of the main body;
The stacking guide is a junction box, characterized in that the pair is provided symmetrically on both sides of the shield on the basis of the shield. The method of claim 1,
The junction box provided on the main body unit, the junction box further comprises at least one handling gripping portion forming a place for the robot handling the main body (robot). The method of claim 5,
The handling gripping portion,
A handling gripping body connected to the main body; And
Junction box, characterized in that it comprises a handling gripping flange which is bent and extended with respect to the handling gripping body at the upper end of the handling gripping body. The method of claim 6,
The terminal is a flat terminal (parallel terminal) arranged parallel to the plate surface of the module body,
The flat terminal and the ribbon are welded to each other by an indirect welding method,
Junction box, characterized in that the one side of the flat terminal is further formed with embossing projections protruding from the plate surface to increase the bonding when bonded to the ribbon. A module body having a ribbon; And
And a junction box having a main body provided with a terminal welded to the ribbon, and a stacking guide provided at one side of the main body to guide the main body stacked along a height direction. Solar modules. The method of claim 8,
The stacking guide is formed to protrude along a direction in which the main body is stacked in the corner area of the main body of the junction box,
The stacking guide is a solar module, characterized in that a guide hole through which the guide bar for guiding the body portion is formed. 10. The method of claim 9,
The stacking guide is a photovoltaic module characterized in that it has a truncated cone shape that narrows toward the top. The method of claim 8,
The junction box further includes a shield coupled to the main body to support the terminal and protruding in a direction crossing the plate surface of the main body.
The stacking guide is a solar module, characterized in that provided in a pair symmetrical on both sides of the shield on the basis of the shield. The method of claim 8,
The junction box is provided on the main body portion, and further comprises at least one handling gripping portion that forms a place for the robot (robot) for handling the main body portion. The method of claim 12,
The handling gripping portion,
A handling gripping body connected to the main body; And
And a handling gripping flange which is bent and extended with respect to the handling gripping body at an upper end of the handling gripping body. The method of claim 13,
The terminal is a flat terminal (parallel terminal) arranged parallel to the plate surface of the module body,
The flat terminal and the ribbon are welded to each other by an indirect welding method,
On one side of the flat terminal is a solar module, characterized in that the embossing protrusions protruding from the plate surface is further formed so as to increase the bonding when bonded to the ribbon.

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