KR102190047B1 - Busbar for connector band of photovoltaic power system - Google Patents

Abstract

The present invention relates to a bus conductor for a connection board of a solar power generation system. According to the present invention, the bus conductor for a connection board of a solar power generation system comprises: a bar-shaped base plate (410) for electrically connecting a plurality of fuse connectors (300) with a circuit breaker (200); a terminal pin (440); and a connection pin (500). According to the present invention, current transfer efficiency can be improved.

Description

Bus conductor for connection panel of solar power generation system {BUSBAR FOR CONNECTOR BAND OF PHOTOVOLTAIC POWER SYSTEM}

The present invention relates to a bus conductor for a connection panel of a photovoltaic power generation system, and more particularly, it is formed integrally so that a circuit breaker and a plurality of fuses can be electrically connected to each other at a time in the connection panel of a photovoltaic power generation system, and connected to each fuse The present invention relates to a bus conductor for a connection panel of a photovoltaic power generation system, which can improve the safety of a photovoltaic power generation system by shortening the process of doing so, preventing a worker's mistake and easily installing it.

Solar power generation is a power generation method that directly converts solar debt into electrical energy using solar cells without the help of a generator, that is, it is a power generation method that converts light from the sun into electrical energy using the photovoltaic effect. .

The advantage of such solar power generation is that there is no pollution, and since it is easy to maintain and repair because it is possible to generate power as much as necessary in a necessary place, there is a trend of increasing households installing solar power generation systems in Korea.

The photovoltaic power generation system includes a solar cell that converts light energy into electric energy using the photovoltaic effect, a connection panel that is connected to the solar cell to collect electricity, and an inverter that converts DC power produced from the solar cell into AC power. It can be configured to include.

The connection panel is configured to receive DC power through a plurality of input channels each connected to the solar cell, integrate it into one, and output the power, then transmit the power to an inverter, change it to a commercial power, and provide it as a load. That is, the connection panel is provided with several input terminals connected in series for each module of a solar cell, as described in Registration Patent No. 10-1326253 (registration date: October 31, 2013), and is provided at each input terminal. An individual power detection sensor that senses the voltage and current values of the power input from the power supply, an individual power breaker consisting of a relay that is provided at each input terminal to individually cut off the power input from the solar cell, and the input through each input terminal. A total power circuit breaker equipped with a total power detection sensor that senses the voltage and current values of the total power when individual power is collected and supplied to the converter, and a relay that automatically cuts off power when overvoltage and overcurrent are detected by the total power detection sensor. Wow, a fuse connected in parallel with the relay of the total power breaker, and the relay and fuse of the total power breaker connected in parallel so that the total power collected from a plurality of input terminals is smoothly supplied to the converter, each circuit can be selectively switched. A connected switching switch and a control unit configured to convert the data to monitor the voltage and current values detected by the individual power detection sensors and the total power detection sensors, or to operate the individual power breakers and the total power breakers according to the detected voltage and current values. It is possible to use a connection board for a photovoltaic generator including.

In addition, a bus bar for electrically connecting the fuse and the breaker is formed in the connection panel.

Conventional bus bars include a main bus conductor formed in the shape of a long plate connected to a circuit breaker, and a plurality of pins formed in the shape of a pin that is fastened to the main bus conductor as a fastening means and inserted into each fuse connector with a built-in fuse. It can be composed of auxiliary bus conductors.

However, in the conventional bus bar, a plurality of fuse connectors are spaced apart from each other by a certain distance along the length direction of the main bus conductor, and one side of each auxiliary bus conductor is seated on the gathered bus conductor through a fastening means. It is connected, and the other side of each auxiliary bus conductor is inserted into each fuse connector and connected.

That is, in the related art, since a plurality of auxiliary bus conductors are fastened to the main bus conductor to electrically connect the breaker and a plurality of fuses, the process becomes complicated and thus installation becomes difficult.

In addition, since a large number of fastening means are used in the process of connecting the plurality of auxiliary bus conductors to the main bus conductor, the manufacturing cost is increased, and the worker directly fastens each fastening means when fastening each fastening means. If it occurs, there is a problem that the safety may be significantly reduced.

Accordingly, there is a demand for a method for preventing a mistake by an operator while shortening the process process by electrically connecting a breaker and a plurality of fuses to each other in the connection panel of the solar power generation system.

The present invention has been proposed to solve the above-described problem, and an object of the present invention is to provide a bus conductor for a connection panel of a solar power generation system that is integrally formed so that a breaker and a fuse can be electrically connected to each other at a time in the solar connection panel. have.

In addition, an object of the present invention is to provide a bus conductor for a connection panel of a photovoltaic power generation system that can shorten the process of connecting each fuse connector.

In addition, another object of the present invention is to provide a bus conductor for a connection panel of a solar power generation system that can improve the transfer efficiency of transferring current from a fuse to a breaker.

In addition, there is an object of providing a bus conductor for a connection panel of a solar power generation system that can detect a temperature and prevent a fire.

In addition, it is an object to provide a bus conductor for a connection panel of a solar power generation system capable of detecting vibrations in a solar connection panel.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The bus conductor for the connection panel of the solar power generation system according to the present invention for achieving the above object is a schedule for electrically connecting a plurality of fuse connectors 300 with built-in fuses and a breaker 200 for controlling power. A bar-shaped base plate 410 having a length, a terminal pin 440 integrally extending from the base plate 410 to the plurality of fuse connectors 300, respectively, and the base plate 410 In the bus conductor for a connection panel of a solar power generation system including a connection pin 500 for being inserted into the breaker 200 while being connected to one side in the length direction adjacent to the breaker 200, the base plate 410, The terminal pin 440 is formed to protrude to correspond to the center of the other side of the fuse connector 300 facing one side in the width direction of the base plate 410 in order to limit the flow of the fuse connector 300, and the On one side in the length direction of the base plate 410, an extension plate 430 for connecting the connection pin 500 is formed, and the extension plate 430 has a receiving groove 431 formed along the width direction. , The receiving groove 431 includes a temperature sensor 600 for measuring the temperature of the base plate 410 to the terminal pin 440 in contact with the extension plate 430.
In addition, at both ends of the base plate 410 in the longitudinal direction, a pair of fasteners 411 are formed in order to fix the base plate 410 with a fixing means 420 inside the connection board 100, and the fixing In the means 420, a vibration sensor 700 for sensing vibration of the base plate 410 to the terminal pin 440 is mounted.

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As described above, according to the present invention, the circuit breaker and the fuse can be electrically connected to each other at one time in the connection panel of the solar power generation system. Since it can be connected to each fuse, there is an effect of improving the safety of the solar power generation system as it can prevent a worker's process mistakes.

In addition, since a fastening means for fastening is not used for each fuse connector, not only the manufacturing cost can be reduced, but the process process can be shortened, thereby reducing the working time.

In addition, it is possible to improve the transfer efficiency of transferring current from the fuse to the breaker, thereby improving the quality of the product.

In addition, there is an effect of preventing safety accidents such as fires that may occur in the connection panel of the solar power generation system by controlling the circuit breaker after detecting the temperature and making a comparison with a preset abnormal temperature.

In addition, it is possible to detect the vibration in the solar panel, there is an effect of preventing safety accidents due to earthquakes.

1 and 2 are bus conductors for a connection panel of a solar power generation system according to an embodiment of the present invention,
3 is a temperature sensor configured on a bus conductor for a connection panel of a solar power generation system according to another embodiment of the present invention,
Figure 4 is a vibration sensor configured in the bus conductor for the connection panel of the solar power generation system according to another embodiment of the present invention,
5 is a view showing a method of using a bus conductor for a connection panel of a solar power generation system according to an embodiment of the present invention;
6 is a use state diagram of a bus conductor for a connection panel of a solar power generation system according to an embodiment of the present invention,
7 is a bus conductor for a connection panel of a conventional solar power generation system.

Hereinafter, a bus conductor for a connection panel of a solar power generation system according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a bus conductor for a connection panel of a solar power generation system according to an embodiment of the present invention, and FIG. 3 is a temperature sensor configured on a bus conductor for a connection panel of a solar power generation system according to another embodiment of the present invention. 4 is a vibration sensor configured on a bus conductor for a connection panel of a solar power generation system according to another embodiment of the present invention.

In addition, Figure 5 is a view showing a method of using the bus conductor for the connection panel of the solar power generation system according to an embodiment of the present invention, Figure 6 is a bus conductor for the connection panel of the solar power generation system according to an embodiment of the present invention This is the state of use of

In addition, Figure 7 is a bus conductor for a connection panel of a conventional solar power generation system.

In adding reference numerals to the components of the drawings, the same components are to have the same reference numerals as possible even if they are displayed on different drawings, and a known function that is judged to unnecessarily obscure the subject matter of the present invention. And detailed description of the configuration will be omitted. Further, directional terms such as'top','bottom','front','back','front end','front','rear end' are used in connection with the orientation of the disclosed drawing(s). Since components of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes, but is not limited thereto.

The bus conductor 400 for a connection panel of a solar power generation system according to a preferred embodiment of the present invention, as shown in FIGS. 1 to 2, is a fuse connected to a power line for receiving a current generated and output from a solar cell. In the connection panel of a photovoltaic power generation system including a plurality of fuse connectors 300 and a breaker 200 for controlling power, the fuse connector 300 and the breaker 200 are electrically connected Thus, in order to induce a current from the fuse to the breaker 200, a bar-shaped base plate 410 having a predetermined length to be positioned between the fuse connector 300 and the breaker 200, and the base plate ( At 410, the plurality of fuse connectors 300 are extended to correspond to each other, are spaced apart from each other, are formed integrally, and are inserted into the plurality of fuse connectors 300 to receive current from the fuse ( 440, and connected to one side of the base plate 410 in the longitudinal direction adjacent to the breaker 200 and inserted into the breaker 200 to provide a connection pin 500 for supplying the current of the fuse. I can.

The solar cells form a group in order to convert solar energy into electrical energy and output it. The solar cells formed as one group are connected to the input terminal of the connection panel 100.

The solar cell may be composed of a set of unit cells generating power of a voltage of 0.5V to 0.6V, that is, about 3W to 4W.

The fuse connector 300 is connected to a power line for receiving a current generated and output from the solar cell, and a fuse for receiving current through the power line must be built-in.

It is preferable that the power line is connected to one side of the fuse connector 300.

The fuse connector 300 may be formed in a rectangular cylindrical shape whose upper portion is opened and closed so that the fuse may be embedded.

The fuse connector 300 may be mounted in a line through a connector holder (not shown) in the connection panel 100. That is, the fuse connector 300 is fastened to the connector holder (not shown) at a predetermined distance from each other to be mounted inside the connection board 100.

In the related art, as shown in FIG. 7, an insertion pin 820 consisting of a base plate 810 and a piece in order to electrically connect each fuse of the fuse connector 300 mounted in a row and the breaker 200 Although the conventional bus conductor 800 was used, after fixing the base plate 810 inside the connection board 100, inserting one side of each insertion pin 820 into each fuse connector 300 Since the other side of the insertion pin 820 must be fastened to the base plate 810 using the fastening means 830, respectively, as the work process increases, the operator's mistake such as not being completely fastened the fastening means 830 As it occurs frequently, there is a problem that the quality of the product is deteriorated and safety is lowered.

In order to solve such a problem, in the present invention, a fuse connector 300 mounted at a predetermined distance from each other and a bus conductor 400 for electrically connecting the breaker are integrally formed.

That is, the bus conductor 400 includes a bar-shaped base plate 410 having a predetermined length to be positioned between the fuse connector 300 and the breaker 200, and the fuse connector in the base plate 410 A plurality of terminal pins 440 extending in the (300) direction are integrally formed.

The base plate 410 is formed in a bar shape of a predetermined length, and is preferably formed of a copper plate or an aluminum plate to pass current.

In addition, the length of the base plate 410 is preferably formed to be at least the same as the length of the plurality of fuse connectors 300 mounted in a row. This is because the terminal pins 440 protruding toward the fuse connector 300 are formed on the base plate 410 later.

The base plate 410 formed as described above is positioned between the fuse connector 300 and the breaker 200 so that the fuse connector 300 and the breaker 200 can be electrically connected. In other words, one side in the width direction of the base plate 410 is positioned to correspond to the other side of the fuse connector 300 mounted in a row, and one side in the length direction of the base plate 410 is adjacent to the breaker 200 Should be located.

In addition, at both ends of the base plate 410 in the longitudinal direction, a pair of fasteners 411 are formed in order to fix the base plate 410 to the inside of the connection board 100 with a fixing means 420.

The fixing means 420 may use a bolt or the like for fixing the base plate 410 and the connection board 100.

Here, various fixing means such as a one-touch type or an adhesive type may be formed at both ends of the base plate 410 in the longitudinal direction so that the base plate 410 may be fixed inside the connection board 100.

Terminal pins 440 are formed on the base plate 410 to receive current from the fuse by being inserted into the fuse connector 300.

The terminal pins 440 are formed to protrude from one side of the base plate 410 in the width direction toward the fuse connector 300 and are formed to correspond to the plurality of fuse connectors 300, respectively.

Accordingly, the terminal pin 440 may be formed in a rod shape having a predetermined length to be inserted into the fuse connector 300, and the end is formed to be rounded so that it can be easily inserted into the fuse connector 300. It is desirable to be.

Since the end of the terminal pin 440 is formed by being rounded, it is possible to prevent damage to the body when the operator uses it, and it can be easily inserted without damaging the fuse connector 300.

It is preferable that the base plate 410 is formed to be spaced apart from each other so as to correspond to the centers of the other sides of the plurality of fuse connectors 300.

For example, the spaced apart distance between the adjacent terminal pins 440 is between the center of the other side of the first fuse connector 300 and the center of the other side of the first fuse connector 300 and the adjacent second fuse connector 300. It is preferable to be formed equal to the spacing.

By forming the terminal pins 440 spaced apart as described above, the flow of the fuse connector 300 can be limited, as well as the terminal pin 440 inserted into the fuse connector 300 without a separate fastening means. It can be prevented from being separated, and the position of the base plate 410 can be fixed.

In addition, as the terminal pin 440 is formed to be spaced apart from the base plate 410, when the terminal pin 440 is inserted into the fuse connector 300, it is caught by the base plate 410 and the It is possible to prevent excessive insertion of the terminal pin 440 into the fuse connector 300.

The terminal pins 440 must be formed according to the number of fuse connectors 300 so that they can be respectively inserted into the fuse connectors 300 mounted in a row.

Current is supplied from the fuse of the fuse connector 300 through the terminal pin 440, and the current supplied from the fuse is transmitted to the base plate 410 integrally formed with the terminal pin 440.

At this time, since the base plate 410 and the terminal pin 440 are integrally formed, it is possible to improve the current transfer efficiency and help to lower heat generation.

The connection pin 500 is for connecting one side in the length direction of the base plate 410 and the circuit breaker 200, and may be formed in a rod shape of a certain length, as well as a U shape as needed. It can be formed in various shapes such as.

Further, the connection pin 500 may be used by connecting a plurality of connection pins 500 according to a distance between the base plate 410 and the circuit breaker 200.

One side of the connection pin 500 may be connected to the extension plate 430 of the base plate 410 using a connection means 550, and the other side may be inserted into the circuit breaker 200.

It is preferable to use bolts, nuts, etc. as the connection means 550 so that the connection pin 500 and the extension plate 430 of the base plate 410 are connected.

By connecting the connection pin 500 to the base plate 410, the current supplied from the terminal pin 440 is transferred to the base plate 410, and then the circuit breaker 200 through the connection pin 500. ).

Here, an extension plate 430 may be further formed on one side in the length direction of the base plate 410 for connecting the connection pins 500. That is, an extension plate 430 having a predetermined area to which the connection pin 500 can be connected so that the base plate 410 and the circuit breaker 200 can be connected to one side in the length direction of the base plate 410 It must be formed further.

The mall extension plate 430 is formed to have the same width as the width of the base plate 410, and a connector 412 for inserting the connecting means 550 should be formed.

Since the extension plate 430 is formed, the connection pin 500 can be easily connected, and the connection means 550 connecting the connection pin 500 is one side in the length direction of the base plate 410 It is positioned adjacent to the fixture 411 formed in the or positioned adjacent to the fuse connector 300 to prevent the occurrence of difficulty in installation, thereby helping to reduce product defects.

Meanwhile, the base plate 410 to the terminal pin 440 may have a thickness of 2 mm to 4 mm.

That is, when the base plate 410, the extension plate 430, and the terminal pin 440 are formed to have a thickness of less than 2 mm, there is a problem in that the current transfer efficiency is lowered and can be easily bent. When the thickness is exceeded, there is a problem in that the efficiency of transmitting current is insignificant and the manufacturing cost is increased.

The optimal thickness of the base plate 410 to the terminal pin 440 is 3 mm, and it is possible to not only improve the efficiency of transferring current, but also minimize damage such as being easily bent.

At this time, the connection pin 500 is also formed to have the same thickness as the thickness of the base plate 410 to the terminal pin 440 so as to be the same as the current transfer efficiency of the base plate 410 to the terminal pin 440 It is desirable.

Meanwhile, as shown in FIG. 3, a temperature sensor 600 is further configured on the extension plate 430 to measure the temperature of the base plate 410 to the terminal pin 440.

The temperature sensor 600 is in contact with the extension plate 430 to sense the heat of the base plate 410 to the terminal pin 440 to measure the temperature.

Here, a receiving groove 413 having a predetermined length may be formed in the extension plate 430 in a width direction, and the temperature sensor 600 may be seated in the receiving groove 413.

By forming the receiving groove 413 in the extension plate 430, it is possible to limit the movement of the temperature sensor 600, and the temperature sensor 600 is connected to the base plate 410 to the terminal pin 440 ) Heat can be easily detected.

The temperature value measured by the temperature sensor 600 is transmitted to an MCU (not shown).

The MCU (not shown) receives the temperature value measured by the temperature sensor 600 and compares it with a preset abnormal temperature value to determine whether the temperature value measured by the temperature sensor 600 exceeds the abnormal temperature value. After that, the operation of the breaker 200 can be controlled.

The MCU (not shown) cuts off power supply to the circuit breaker 200 when the temperature value measured by the temperature sensor 600 exceeds the abnormal temperature value.

By configuring the temperature sensor 600, it is possible to detect an increase in the temperature of the base plate 410 to the terminal pin 440, thereby helping to prevent a fire or the like from occurring in the connection panel of the solar power generation system. Can give.

On the other hand, as shown in FIG. 4, it may further include a vibration sensor 700 for detecting a vibration generated due to an earthquake or the like.

The vibration sensor 700 is for detecting vibration, and is capable of detecting vibration of the base plate 410 to the terminal pin 440. In addition, the vibration sensor 700 may be formed in a hollow cylindrical shape, and may be mounted on a fixing means 420 fitted to a fastener 411 of the base plate 410.

At this time, when the vibration of the base plate 410 to the terminal pin 440 is sensed through the vibration sensor 700, a vibration detection signal is generated and transmitted to the MCU (not shown).

The MCU (not shown) receives a vibration detection signal from the vibration sensor 700 and controls the operation of the circuit breaker 200.

The vibration sensor 700 is mounted on the fixing means 420 to detect vibrations of the base plate 410 to the terminal pin 440 so that the fixing means 420 is separated from the base plate 410. While being able to grasp that, by controlling the operation of the circuit breaker 200 when vibration is sensed, it is possible to prevent a failure or the like in advance.

The method of installing the bus conductor 400 for the connection panel of the solar power generation system formed as described above, as shown in FIGS. 5 to 6, the connector holder (not shown) in the connection panel 100 According to a plurality of fuse connectors 300 mounted in a row, the base plate 410 is positioned in parallel so that the terminal pins 440 face the fuse connector 300 and then each of the fuse connectors 300 Insert the terminal pin 440.

At this time, one side in the length direction of the base plate 410 should be located in a direction adjacent to the circuit breaker 200.

The fixing means 420 is inserted into a pair of fasteners 411 formed at both ends of the base plate 410 in the longitudinal direction so that the base plate 410 can be fixed inside the connection board 100.

Thereafter, one side of the connection pin 500 is connected to the extension plate 430 of the base plate 410 with the connection means 550, and the other side of the connection pin 500 is inserted into the circuit breaker 200. do.

The bus conductor 400 for the connection panel of the installed photovoltaic power generation system receives the current output from the fuse of the fuse connector 300 through the terminal pin 440 and then the supplied current is applied to the base plate 410 Is transmitted to the base plate 410 and the connection pin 500 through the circuit breaker 200.

As described above, by installing the bus conductor 400 for the connection panel of the solar power generation system, the circuit breaker 200 and the fuse are electrically connected to each other in the connection panel 100 of the solar power generation system at one time. As well as being able to be easily installed, it can be connected to each fuse without the use of a separate fastening means, thereby preventing a mistake in the process of an operator, thereby improving the safety of the solar power generation system.

In addition, each fuse connector 300 does not use a separate fastening means to fasten a conventional single-type terminal, so as to not only reduce the manufacturing cost, but also shorten the process process, it is possible to shorten the working time. .

In addition, since it is possible to improve the transfer efficiency of transferring current from the fuse to the breaker 200, there is an effect of improving the quality of the product.

Embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, if these improvements and changes are apparent to those of ordinary skill in the art, they will fall within the scope of the present invention.

100: connection panel 200: circuit breaker
300: fuse connector 400: bus conductor
410: base plate 411: fixture
412: connector 420: fixing means
430: extension plate 431: receiving groove
440: terminal pin 500: connection pin
550: connection means 600: temperature sensor
700: vibration sensor 800: conventional bus conductor
810: base plate 820: insertion pin
830: fastening means

Claims (3)

A bar-shaped base plate 410 having a predetermined length for electrically connecting a plurality of fuse connectors 300 with built-in fuses and a breaker 200 for controlling power, and the plurality of fuse connectors 300 in the base plate 410 A terminal pin 440 integrally extended so as to be inserted into each of the four fuse connectors 300 and connected to one side of the base plate 410 in the longitudinal direction adjacent to the breaker 200 to be inserted into the breaker 200 In the bus conductor for a connection panel of a solar power generation system comprising a connection pin 500,
In the base plate 410, the terminal pin 440 is connected to the center of the other side of the fuse connector 300 facing one side in the width direction of the base plate 410 to limit the flow of the fuse connector 300. It is formed to protrude to correspond,
An extension plate 430 for connecting the connection pin 500 is formed on one side of the base plate 410 in the longitudinal direction,
The extension plate 430 has a receiving groove 431 formed along the width direction,
The receiving groove 431 is in contact with the extension plate 430 to connect a solar power generation system including a temperature sensor 600 for measuring the temperature of the base plate 410 to the terminal pin 440 Half bus conductor.
The method according to claim 1,
At both ends of the base plate 410 in the longitudinal direction, a pair of fasteners 411 are formed in order to fix the base plate 410 with a fixing means 420 inside the connection board 100,
A bus conductor for a connection panel of a solar power generation system in which a vibration sensor 700 for detecting vibration of the base plate 410 to the terminal pin 440 is mounted on the fixing means 420.


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