JP2007165031A - Terminal connection board and terminal connection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal connection board and a terminal connection method which facilitate checking of wiring between devices. <P>SOLUTION: The terminal connection board 1 has a plurality of terminal blocks 11 and the terminal block 11 is provided with an insulating body 11A, a plurality of terminals 11D-11F which are installed at the body 11A and are connected mutually electrically, and connecting parts 11B, 11C which are respectively installed at the opposite face of the body 11A and are connected detachably to another body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a terminal connection base and a terminal connection method for connecting various devices.

  In order to connect, for example, a measuring instrument or a test apparatus as an apparatus and, for example, an apparatus under test as another apparatus, a lead wire is usually used. For example, as shown in FIG. 11, when the device under test is a ground fault direction relay 101, the test device is a voltage / current generator 111, and the measuring devices are a phase meter 121, a voltmeter 122, an ammeter 123, and the like. The tester connects the terminals of the ground fault direction relay 101, the voltage / current generator 111, the phase meter 121, the voltmeter 122, and the ammeter 123.

  The I1 terminal and I2 terminal of the voltage / current generator 111 are terminals that output current, and the V1 terminal and V2 terminal are terminals that output voltage. The ± terminal and the A terminal of the phase meter 121 are terminals for inputting and outputting current, and the ± terminal and the V terminal are terminals for inputting a voltage. The phase meter 121 detects the phase between the current input to the ± terminal and the voltage input to the ± terminal and the V terminal. The ground fault direction relay 101 includes a C1 terminal and a C2 terminal to which current is input, and a P1 terminal and a P2 terminal to which voltage is input, and operates using the current, voltage, and phase thereof as elements. The tester 131 checks the operation of the relay contact 101A of the ground fault direction relay 101.

  The tester performs the following connection work on these test devices and the device under test. The tester connects the I1 terminal of the voltage / current generator 111 and the C1 terminal of the ground fault direction relay 101 by the lead wire 201, and the I2 terminal of the voltage / current generator 111 and the ± terminal of the phase meter 121 by the lead wire 202. Connect. A series circuit of an ammeter 123 and a resistor 124 is connected between the A terminal of the phase meter 121 and the C2 terminal of the ground fault direction relay 101 by the lead wires 203 to 205. Thereby, the connection on the current side is terminated.

  The tester also makes the voltage side connection. The tester connects the V1 terminal and the V2 terminal of the voltage / current generator 111 to the ± terminal and the V terminal of the phase meter 121 through the lead wire 206 and the lead wire 207, respectively. Lead wire 208 and lead wire 209 connect ± terminal and V terminal of phase meter 121 to P1 terminal and P2 terminal of ground fault direction relay 101, respectively. Further, the tester connects the voltmeter 122 to the V1 terminal and the V2 terminal of the voltage / current generator 111 in parallel by the lead wire 210 and the lead wire 211, and the grounding fault by the lead wire 212 and the lead wire 213. The relay contact 101A of the direction relay 101 is connected to the tester 131.

However, in the connection work, the phase meter 121 and the voltmeter 122 are connected to the V1 terminal and the V2 terminal of the voltage / current generator 111, and the voltage / current generator 111 and the ground are connected to the ± terminal and the V terminal of the phase meter 121. The tangential relay 101 is connected. For example, when the lead wire 206 and the lead wire 210 are connected to the V1 terminal of the voltage / current generator 111, the lead wire 206 and the crimp terminal attached to the tip of the lead wire 210 are connected to the V1 terminal of the voltage / current generator 111. Secure with screws. That is, the workability is poor because it is necessary to screw the two crimp terminals to the V1 terminal at the same time. In order to improve this point, for example, there is a terminal block in which terminals are formed in three places (see, for example, Patent Document 1). By incorporating such a terminal block into the voltage / current generator 111 or the phase meter 121, it becomes easy to connect two lead wires simultaneously.
Japanese Utility Model Publication No. 5-15338

  However, for example, when testing the ground fault direction relay 101 in FIG. 11, when checking whether there is an incorrect wiring in each connection after the connection work is completed, the lead wires 201 to 213 are used for the wiring. It is not easy to check the wiring by following each lead wire visually.

  For example, on the voltage side, a voltmeter 122 is connected in parallel to the V1 terminal and V2 terminal of the voltage / current generator 111, and similarly, the V1 terminal and V2 of the voltage / current generator 111 are connected to the ± terminal and V terminal of the phase meter 121, respectively. The terminal and the P1 terminal and the P2 terminal of the ground fault direction relay 101 are connected in parallel. For this reason, for example, when the wiring check is performed from the lead wire 210 of the voltmeter 122, it is confirmed that the lead wire 210 is connected to the V1 terminal of the voltage / current generator 111, and V1 of the voltage / current generator 111 is confirmed. It is confirmed that the lead wire 206 from the terminal is connected to the ± terminal of the phase meter 121, and further, the lead wire 209 from the ± terminal of the phase meter 121 is connected to the P1 terminal of the ground fault direction relay 101. Make sure. That is, the tester performs an operation of confirming in order that the lead wires 210, 206, and 209 are correctly connected by visual inspection. In this case, for example, if the lead wires cross each other and the lead wire is lost in the middle of confirmation, it is necessary to perform confirmation work from the beginning, and it is not easy to check the wiring. In particular, when the device under test is for three-phase alternating current, the wiring of the lead wire becomes more complicated and the wiring check becomes more difficult. When checking the wiring on the current side as well as on the voltage side, it is not easy to check the wiring because the work of checking each lead wire in order is made in order.

  An object of the present invention is to provide a terminal connection base and a terminal connection method that solve the above-described problems and facilitate the check of wiring between devices.

  In order to solve the above-mentioned problems, the invention of claim 1 is a terminal connection base comprising a plurality of terminal blocks, wherein the terminal blocks are provided on the insulating main body and the main body, and are electrically connected to each other. A terminal connection base comprising: a plurality of connected terminals; and a connection part that is provided on a facing surface of the main body and is detachably connected to another main body.

  In the invention of claim 1, the terminal connection base is formed of a plurality of terminal blocks. Each terminal block includes a plurality of terminals electrically connected to each other and a connection portion for detachably connecting another terminal block.

  According to a second aspect of the present invention, in the terminal connection base according to the first aspect, the terminal can be attached to and detached from the terminal, and at least one or more for connection expansion, for connecting terminals of other shapes, and for short-circuiting between terminals of each body. The adapter is provided.

  According to a third aspect of the present invention, in the terminal connection base according to the first or second aspect, the main body is formed in a T shape, and the terminal is provided on each end face side of the three projecting portions. Features.

  The invention of claim 4 is a connection method using the terminal connection base according to any one of claims 1 to 3, wherein each terminal of the device is connected to each terminal of another device. The terminal connection method is characterized in that the terminals are connected through the terminal connection block, and the terminal block is added by the connection portion when the terminals of the terminal connection block are insufficient at the time of connection. .

  According to the invention of claim 1 and claim 4, when each terminal block has a plurality of terminals, particularly three or more terminals, when connecting each terminal of each device with a lead wire, At the same time, it can be connected to the terminal block so that the terminal connection base is interposed between the devices. As a result, when checking whether each lead wire is connected correctly, it is only necessary to visually check whether the lead wire between the terminal of the device and the terminal connection base is normally connected. This eliminates the need for visual confirmation of the lead wires in order and facilitates the wiring check. In addition, since the terminal block body is equipped with a connection section, as the number of devices and the number of terminals increase, the terminal block is added to the terminal connection base to form the terminal connection base according to the connection work. can do.

  According to the invention of claim 2, since various adapters can be prepared, it is possible to make a wide range of connections according to work that requires additional terminals, connection of terminals of other shapes, and short-circuit connection between terminals.

  According to the invention of claim 3, since the main body is T-shaped and the terminal is provided on the projecting portion of the main body, the stability when the terminal connection base is placed can be improved.

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a terminal connection base 1 according to this embodiment. The terminal connection base 1 includes a plurality of terminal blocks 11. As shown in FIGS. 2A and 2B, the terminal block 11 includes a main body 11A having a T-shaped side surface 11A ₁ and a side surface 11A ₂ , and the main body 11A is made of an insulator. FIG. 2B is a perspective view of the terminal block 11 when FIG. 2A is viewed from the direction of arrow A, that is, from the right side. Since the main body 11A has a T-shape, the terminal connection base 1 can be stably installed by setting the long side portion of the T-shape to the installation side. The side surface 11A ₁ is provided with a cubic protrusion 11B, and the side surface 11A ₂ is provided with a groove 11C that fits the protrusion 11B. The terminal connection base 1 is formed by connecting a plurality of terminal blocks 11 by fitting the protrusions 11B and the grooves 11C.

As shown in FIG. 3, end surfaces 11 </ b> A _{3 to} 11 </ b> A _{5 of three} projecting portions are formed on the T-shaped main body 11 </ b> A of the terminal block 11. The main body 11A is provided with jack portions 11D to 11F as terminals. The jack portions 11D to 11F are to be electrically connected to the banana plug 222 connected to the tip of the lead wire 221, and have a cylindrical shape made of metal. For example, when the banana plug 222 is attached to the tip of the lead wire 221, the openings 11D _{1 to} 11F ₁ of the jack portions 11D to 11F into which the banana plug 222 is inserted are opened in the end surfaces 11A _{3 to} 11A ₅ of the main body 11A. Yes. The openings 11D _{1 to} 11F ₁ are terminal insertion holes for inserting the banana plug 222. The bottom portions 11D _{2 to} 11F ₂ of the jack portions 11D to 11F facing the openings 11D _{1 to} 11F ₁ are connected by a metal T-shaped connector 11G. Thereby, jack part 11D-11F is electrically connected.

When a plurality of terminal blocks 11 are connected, the thickness of the terminal block 11 is set in advance so that the distance L (FIG. 1) between the openings 11D _{1 to} 11F ₁ of each terminal block 11 is constant.

In this embodiment, various adapters are attached to the terminal connection base 1. For example, there is a short-circuit adapter 21 shown in FIG. The short-circuit adapter 21 is provided with three banana plugs 21B on a rectangular parallelepiped main body 21A made of an insulating material. The interval between adjacent banana plugs 21 </ b> B is the same as the interval L between the openings 11 </ b> D _{1 to} 11 </ b> F ₁ of the terminal block 11. Each banana plug 21B is connected inside the main body 21A by a metal connector 21C. When the short-circuit adapter 21 is inserted into the terminal block 11 of the terminal connection base 1, the terminal block 11 is short-circuited. Further, in the short-circuit adapter 21 of FIG. 4, three banana plugs 21B are provided, but the number of banana plugs 21B may be two or more.

  As the adapter, there is another shape terminal connecting adapter 22 shown in FIG. The other-shaped terminal connection adapter 22 is provided with a banana plug 22B on a rectangular parallelepiped main body 22A made of an insulating material, and with a terminal 22C facing the banana plug 22B. The terminal 22C is electrically connected to the banana plug 22B inside the main body 22A. The terminal 22C connects and fixes the terminal by screwing, and corresponds to the Y lug terminals 301 and 302 having various shapes.

  As the adapter, there is a connection point expansion adapter 23 shown in FIG. The connection point expansion adapter 23 is provided with a banana plug 23B on a rectangular parallelepiped main body 23A made of an insulating material, and a U-shaped jack portion 23C so as to face the banana plug 23B. The jack portion 23C is electrically connected to the banana plug 23B inside the main body 23A. The jack portion 23C is a metal tube, and two openings of the jack portion 23C are opened on the surface of the main body 23A. A banana plug 311 can be inserted into each opening of the jack portion 23C, and the connection point increasing adapter 23 enables connection of two banana plugs 311 to one banana plug 23B.

  In this embodiment, the short-circuit adapter 21, the other shape terminal connection adapter 22, and the connection point expansion adapter 23 are attached. Therefore, for example, the connection point is expanded by using the short-circuit adapter 21 or the connection point expansion adapter 23. It is possible to short-circuit the current circuit using the short-circuit adapter 21 and to connect terminals of different shapes using the other-shaped terminal connection adapter 22. The terminal connection base 1 can be formed.

  The terminal connection base 1 according to this embodiment has the above structure. This terminal connection base 1 is used as follows. For example, as in FIG. 11, when the device under test is the ground fault relay 101, the test device is the voltage / current generator 111, and the measuring device is the phase meter 121, the voltmeter 122, the ammeter 123, etc. The connections between the terminals of the ground fault direction relay 101, the voltage / current generator 111, the phase meter 121, the voltmeter 122, and the ammeter 123 are as follows. As shown in FIG. 7, the current side connection using the lead wires 201 to 205 is the same as that of FIG. 11 described above. Note that components that are the same as or the same as those in FIG. 11 are given the same reference numerals, and descriptions thereof are omitted.

The terminal connection base 1 is used for the voltage side connection. In FIG. 7, four terminal blocks 11 in FIG. 1 are used as terminal blocks 11 _{1 to} 11 ₄ . In the measurement, the terminal blocks 11 ₁ and 11 ₂ and the terminal blocks 11 ₃ and 11 ₄ of the terminal connection base 1 are short-circuited by a short-circuit adapter 21 using two banana plugs 21B of FIG. Thereafter, one end of the lead wire 231 and the lead wire 232 is connected to the V1 terminal and the V2 terminal of the voltage / current generator 111, respectively, and the other end of the lead wires 231 and 232 to which the banana plugs are connected is connected to the terminal block 11 ₃ , Plug them into 11 ₂ respectively. Similarly, one end of each of the lead wires 233 and 234 is connected to the ± terminal and the V terminal of the phase meter 121, and the other ends of the lead wires 233 and 234 are inserted into the terminal blocks 11 ₄ and 11 ₁ , respectively. One end of the lead wire 235 and the lead wire 236 is connected to the P1 terminal and the P2 terminal of the ground fault direction relay 101, respectively, and the other end of the lead wires 235 and 236 is inserted into the terminal blocks 11 ₄ and 11 ₁ , respectively. One end of each of the lead wires 237 and 238 is connected to the voltmeter 122, and the other end of each of the lead wires 237 and 238 is inserted into each of the terminal blocks 11 ₂ and 11 ₃ . That is, in this embodiment, the terminal connection base 1 is interposed for all voltage side connections.

Thus, the voltage side connection is made. Thereafter, when checking the wiring, the lead wire 231 from the V1 terminal of the voltage / current generator 111, the lead wire 233 from the ± terminal of the phase meter 121, the lead wire 235 from the P1 terminal of the ground fault direction relay 101, And whether the lead wire 238 from the voltmeter 122 is connected to one of the terminal blocks 11 ₃ and 11 ₄ that are short-circuited to each other. This check is different from the work of sequentially checking the lead wires by visual inspection. For example, it is visually checked whether the lead wire 231 is connected between the V1 terminal of the voltage / current generator 111 and the terminal block 11 _3. The confirmation work is easy because it is only necessary. That is, since the terminal connection base 1 is interposed in the connection by the lead wires 231 to 238, the ground fault direction relay 101, the voltage / current generator 111, the phase meter 121, and the voltmeter 122 between the terminal connection base 1 and It is only necessary to confirm the connection, and the work of confirming the lead wires in order is unnecessary, and the visual confirmation work is facilitated. Further, for example, even if the lead wire 231 is lost, it is only necessary to confirm the connection of the lead wire 231 again, so that it is not necessary to check the wiring from the beginning, and the visual confirmation work is further facilitated. Yes. Further, when the number of measuring instruments to be used is increased or when three-phase alternating current measurement is performed, the terminal block 11 can be easily increased with respect to the terminal connection base 1, so that the terminal connection base 1 according to the connection work. Can be used. Further, it is possible to divide the terminal connection base 1 as necessary. For example, in the case of FIG. 7, by separating the terminal block 11 ₂ and the terminal block 11 _3, it is separated into a circuit connected to the V1 terminal of the voltage / current generator 111 and a circuit connected to the V2 terminal. Therefore, it is possible to easily check the wiring visually. In addition, the terminal connection base 1 can be divided and integrated according to wiring and checking.

By the way, the case where the circuit containing the ammeter 123 of FIG. As shown in FIG. 8, the terminal connection base 1 is also used for connection on the current side. In FIG. 8, for convenience of explanation, three terminal blocks 11 among the six terminal blocks 11 in FIG. 1 are used, and these are designated as terminal blocks 11 _{11 to} 11 ₁₃ . Similar to FIG. 7, to connect one end of the lead 241 to the A terminal of the phase meter 121, insert the other end to the terminal block 11 _11. The ammeter 123 is connected to the terminal blocks 11 ₁₁ and 11 ₁₂ by the lead wires 242 and 243, and the resistor 124 is connected to the terminal blocks 11 ₁₂ and 11 ₁₃ by the lead wires 245 and 246. The lead wire 247 connects the C2 terminals of the ground fault directional relay 101 to the terminal block 11 _13. That is, like the voltage side connection, the terminal connection base 1 is interposed in all connections on the current side.

In this way, connection on the current side is performed. Thereafter, if the checking of the wiring, to see if lead 242 from lead 241 and the ammeter 123 from the A terminal of the phase meter 121 is connected to the terminal block 11 ₁₁ visually. Similarly, whether the leads 245 from the lead 243 and resistor 124 from the ammeter 123 is connected to the terminal block 11 _12, also whether the leads 246 from the resistor 124 is connected to the terminal block 11 ₁₃ Check if. In this case, since the ammeter 123 and the resistor 124 are connected to the terminal connection base 1, the series circuit of the ammeter 123 and the resistor 124 is connected via the terminal blocks 11 _{1 to} 11 _13. It is only necessary to confirm the connection of 242-246 individually, and it can be easily confirmed by visual observation. In such confirmation, since the connection including the ammeter 123 is concentrated on the terminal connection base 1, it is not necessary to confirm the lead wires in order as in the case of the voltage side wiring check, and the visual confirmation work is easy. To do. For example, to confirm the connection by the lead wire 241, since it is only necessary to check whether the lead wire 241 is connected between the A terminal and the terminal block 11 ₁₁ the phase meter 121, confirmation work visually easy is there. Even if the lead wire 241 is lost, it is only necessary to confirm the connection of the lead wire 241 again, so that it is not necessary to check the wiring from the beginning, and the confirmation work is further facilitated. The same is true for other lead wire checking operations.

The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, although the terminal connection base 1 is connected by a banana plug, a structure in which a Y lug terminal is attached to the tip of each lead wire and the terminal is screwed may be used. Various other connection methods can be applied to the terminal connection base 1. Moreover, you may use the terminal block 11 of the terminal connection stand 1 by color-coding according to the phase of 3-phase alternating current, for example. In this case, visual wiring check is further facilitated. Furthermore, although the terminal block 11 is provided with three jack portions 11D to 11F, the number of jack portions is not limited to this. For example, as shown in FIG. 9, two jack portions 11F in FIG. 3 may be provided side by side. In this case, the connecting tool 11G electrically connects the two jack portions 11F and the remaining jack portions 11D and 11E. By doing so, the number of connection points can be increased. By using the terminal block shown in FIG. 9, for example, the voltage side connection shown in FIG. 7 is simplified as shown in FIG. 10 by reducing the number of terminal blocks by increasing the number of connection points and omitting the short-circuit adapter 21. To facilitate wiring check. In FIG. 10, the terminal blocks in FIG. 9 are terminal blocks 11 ₂₁ and 11 ₂₂ .

It is a perspective view which shows the terminal connection stand by embodiment of this invention. It is the perspective view which shows the terminal block, (a) is the perspective view which looked at the terminal block from the left side, (b) is the perspective view which looked at the terminal block from the right side. It is sectional drawing which shows the II cross section of Fig.2 (a). It is a perspective view which shows the adapter for short circuit. It is a perspective view which shows the adapter for other shape terminal connection. It is a perspective view which shows the adapter for connection point expansion. It is explanatory drawing explaining the connection by the side of a voltage using a terminal connection stand. It is explanatory drawing explaining the connection by the side of the electric current using a terminal connection stand. It is sectional drawing which shows the modification of a terminal block. It is explanatory drawing explaining the connection by the side of the electric current using the terminal connection stand by the terminal block of FIG. It is explanatory drawing explaining conventional connection, such as a test apparatus with respect to a to-be-tested apparatus.

Explanation of symbols

1 terminal connection block 11 terminal block 11 _{1 to} 11 ₆ terminal block 11A main body 11B protrusion (connection portion)
11C Groove (connection)
11D to 11F Jack portion 11G Connector 21 Short-circuit adapter 22 Other shape terminal connection adapter 23 Connection point extension adapter 101 Ground fault direction relay 111 Voltage / current generator 121 Phase meter 122 Voltmeter 123 Ammeter 124 Resistance 131 Tester

Claims (4)

A terminal connection base comprising a plurality of terminal blocks,
The terminal block is
An insulating body,
A plurality of terminals provided on the main body and electrically connected to each other;
Each provided on the opposing surface of the main body, a connection part for detachably connecting another main body,
A terminal connection base comprising:   2. The terminal connection base according to claim 1, wherein the terminal connection base is detachable from the terminals, and includes at least one adapter for connection expansion, for connecting terminals of other shapes, and for short-circuiting between terminals of each main body. .   3. The terminal connection base according to claim 1, wherein the main body is formed in a T shape, and the terminal is provided on each end face side of three projecting portions. 4. A connection method using any one of the terminal connection bases according to claim 1,
When connecting between each terminal of the device and each terminal of another device, connecting between each terminal via the terminal connection base,
When the terminal of the terminal connection base is insufficient at the time of connection, the terminal block is added by the connection part,
The terminal connection method characterized by the above-mentioned.

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