JP4739967B2 - Terminal block - Google Patents

Description

  The present invention relates to a terminal block mounted on a distribution board or the like.

  Generally, in each house, for example, a residential distribution board is installed for distributing the commercial power source to a main breaker for a general light / outlet circuit, a breaker for an electric water heater, or the like. The residential distribution board is equipped with a terminal block for connecting each breaker to a commercial power source.

  Here, as a breaker to be connected to the terminal block, a screw hole is provided in the terminal portion on the primary side, and a so-called screw breaker connected to the secondary side connection portion of the terminal block by screwing, and a primary side 2. Description of the Related Art A so-called plug-in type breaker (for example, disclosed in Patent Document 1) that can be connected to a secondary side connection portion of a terminal block without inserting a screw hole in a terminal portion is conventionally known.

JP 2004-30995 A

  Therefore, when using both types of breakers above, the screw-type terminal block can be connected to the screw-type breaker on the secondary-side connecting part, and the plug-in type breaker can be connected to the secondary-side connecting part. Two types of terminal blocks were prepared and mounted, including a plug-in type terminal block.

  However, since it is necessary to use a plurality of types of terminal blocks according to the shape of the primary side terminal portion of the breaker, it takes a lot of time for preparation and mounting work. Moreover, since there exists a possibility of having to mount several terminal blocks, it will be necessary to form the case of a distribution board large beforehand. Therefore, it is necessary to take a large space for installing the distribution board, and there is a problem that the installation place of the distribution board is limited, or when only one terminal block is installed. This causes problems such as excessive free space.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a terminal block that can be connected to any type of breaker of a screw type breaker and a plug-in type breaker. .

In order to achieve the above object, the invention described in claim 1 of the present invention is characterized in that a primary side connection portion comprising a plurality of primary side connection terminals and a secondary comprising a plurality of secondary side connection terminals. and a side connecting portion, a terminal block for connecting the primary terminal portion of the breaker to the secondary-side connecting portion, threaded secondary with primary-side terminal portion connectable to a screw hole of the root Ji formula breaker and the side connecting terminals, by multiple parallel conductive plate formed integrally provided on the plug-type first connection primary side terminal portion to be connected plug-in secondary terminal of the breaker, the secondary-side connecting portion As a feature , a screw type secondary side connection part and a plug-in type secondary side connection part are provided .
The invention according to claim 2 is the invention according to claim 1 , wherein the conductive plate is composed of a thin plate portion elongated in a predetermined direction and a branch portion protruding so as to be cut from the thin plate portion in an orthogonal direction. A screw type secondary side connection terminal is provided at an end of the branch part, and when the branch part is cut, the cut portion can be used as a plug-in type secondary side connection terminal.

According to the present invention, the terminal block is connected to the screw-type secondary side connecting portion of the screw-type breaker primary-side terminal portion and the plug-in-type secondary side connecting plug-in-type breaker primary-side terminal portion. And a connecting portion. Therefore, unlike the prior art, it is not necessary to prepare a plurality of types of terminal blocks according to the structure of the primary side terminal portion of the breaker, or to use them separately for mounting on the distribution board, which is very convenient. In addition, since it is possible to connect both screw type and plug-in type breakers with a single terminal block, compared to the case where multiple terminal blocks are mounted as in the prior art, Work related to mounting becomes easy. Furthermore, by configuring the primary side connection part to be shared by both secondary side connection parts, the space required for mounting the terminal block can be significantly reduced compared to the conventional case, and the distribution board case is compact. It is also possible to expect the effect of improving the degree of freedom relating to the installation of the distribution board.
Further, the conductive plate, because the integrally provided a root Ji formula secondary side connection terminal and the plug-in secondary-side connection terminals, it is possible to reduce the number of parts, and cost reduction, the terminal The ease of assembly of the table can be achieved.
Further, according to the invention described in claim 2 , since the branch portion provided with the screw type secondary side connection terminal is cut, the cut portion can be used as the plug-in type secondary side connection terminal. Even when a large space is required for the plug-in type secondary side connecting portion, it can be dealt with by appropriately cutting the branch portion . Therefore, the terminal block can be used not only when connecting many plug-in breakers, but also when replacing the conventional screw breaker with a plug-in breaker. A terminal block that can be handled without replacement and is extremely versatile.

  Hereinafter, a terminal block according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory perspective view showing the appearance of the terminal block 1. FIGS. 2 and 3 show the terminal block 1 in an exploded state. FIG. 2 shows the support 2 and FIG. FIG. 3B is a perspective explanatory view showing the first conductive plate 3, FIG. 3B is the second conductive plate 4, and FIG. 3C is the third conductive plate 5. In addition, each conductive plate 3, 4, 5 attachment side of the terminal block 1 is demonstrated as the front of the terminal block 1. FIG.
The terminal block 1 includes a first conductive plate 3, a second conductive plate 4, and a third conductive plate 5, and a support 2 that supports these conductive plates 3, 4, 5, and is not shown. It is mounted on the distribution board. Then, both the main breaker 21 and the electric breaker 22 are connected to the main power breaker (shown in FIG. 4) 21 and the electric water heater breaker (shown in FIG. 4) 22 for the commercial power supply / outlet circuit. Connection is possible. In the present embodiment, it is assumed that the main breaker 21 is a general screw breaker and the electric water heater breaker 22 is a plug-in breaker.

  The support body 2 is formed of an insulating synthetic resin or the like, and a cover portion 6 is provided on the left side thereof so as to cover the upper surface, the left side surface, and the back surface. On the other hand, the right side is in a state of being partitioned by three partition plates 7 (7a, 7b, 7c) and the right side plate 8, and between each partition plate 7 and between the partition plate 7c and the right side plate 8. Is provided as a screw-type primary side connection portion 9 (9a, 9b, 9c) connected to the commercial power supply incoming line portion 23 (shown in FIG. 4). Further, on the front side of each partition plate 7, three notch steps 10 (10 a, 10 b) for inserting the first conductive plate 3, the second conductive plate 4, and the third conductive plate 5 as described later. 10c) are engraved. In each partition plate 7, each notch step portion 10 is engraved in the order of 10 a, 10 b, 10 c from the top, and the conductive plate is a corresponding notch step portion 10, 10 of the three partition plates 7 a, 7 b, 7 c. 10 (for example, when the first conductive plate 3 is supported by the notched steps 10a, 10a, and 10a), the conductive plate can be supported in a substantially horizontal posture.

The first conductive plate 3 is a cross-shaped member integrally having a pair of branch portions protruding in the front-rear direction on the right side of the center of a thin metal plate that is long in the left-right direction. A screw hole 11 into which a screw can be inserted is formed at the outer end of each branch. The front branch is a screw-type secondary connection terminal 12 and the rear branch is a primary connection. Each functions as a terminal 13. Further, the left side portion of the first conductive plate 3 functions as a plug-in type secondary connection terminal 14. Furthermore, the screw-type secondary side connection terminal 12 can be cut as necessary.
The first conductive plate 3 can be inserted into the upper notch steps 10a, 10a,. In the locked state, the primary side connection terminal 13 corresponds to the primary side connection portion 9 b and can be fixed to the primary side connection portion 9 b with the screw 20. In addition, the plug-in type secondary side connection terminal 14 is located in the cover part 6 in the attachment state to the support body 2.

Similar to the first conductive plate 3, the second conductive plate 4 is a thin metal plate member that is long in the left-right direction, and a pair of branch portions projecting integrally in the front-rear direction at the right end thereof. It is formed in a plane T shape. The branch portion is formed in a side S-shape that once protrudes substantially horizontally from the thin plate member in the front-rear direction, then bent upward, and further bent so as to protrude substantially horizontally in the front-rear direction. In addition, a screw hole 11 into which a screw can be inserted is formed in the outer end portion of each branch portion. The branch portion on the front side serves as a screw-type secondary connection terminal 12 and the branch portion on the back side serves as a primary. Each functions as a side connection terminal 13. Further, the left side portion of the second conductive plate 4 also functions as a plug-in type secondary side connection terminal 14, similarly to the first conductive plate 3. In addition, the screw-type secondary connection terminal 12 of the second conductive plate 4 can be cut as necessary.
The second conductive plate 4 can be inserted into the middle notch steps 10b, 10b,. In the locked state, the primary side connection terminal 13 corresponds to the primary side connection portion 9 c and can be fixed to the primary side connection portion 9 c with the screw 20. In addition, in the attachment state to the support body 2, the screw type secondary side connection terminal 12 of the second conductive plate 4 is positioned at substantially the same height as the screw type secondary side connection terminal 12 of the first conductive plate 3. It will be. The plug-in type secondary connection terminal 14 of the second conductive plate 4 is also located in the cover portion 6.

Similar to the first conductive plate 3, the third conductive plate 5 is a planar cross-shaped member that integrally has a pair of branch portions projecting in the front-rear direction at the approximate center of a thin metal plate that is long in the left-right direction. It is. Similar to the second conductive plate 4, the branch portion is protruded from the thin plate member substantially horizontally in the front-rear direction, bent upward, and further bent so as to protrude substantially horizontally in the front-rear direction. It is formed in a letter shape. In addition, a screw hole 11 into which a screw can be inserted is formed in the outer end portion of each branch portion. The branch portion on the front side serves as a screw-type secondary connection terminal 12 and the branch portion on the back side serves as a primary. Each functions as a side connection terminal 13. Further, the left side portion of the third conductive plate 5 also functions as a plug-in type secondary side connection terminal 14, similarly to the first conductive plate 3. In addition, the screw-type secondary connection terminal 12 of the third conductive plate 5 can be cut as necessary.
The third conductive plate 5 can be inserted into the lower notch steps 10c, 10c,. In the locked state, the primary side connection terminal 13 corresponds to the primary side connection portion 9 a and can be fixed to the primary side connection portion 9 a with the screw 20. In addition, in the attachment state to the support body 2, the screw type secondary side connection terminal 12 of the third conductive plate 5 is the screw type secondary side connection terminal 12 of the first conductive plate 3 and the screw type of the second conductive plate 4. The secondary connection terminal 12 is located at substantially the same height. In addition, the plug-in type secondary connection terminal 14 of the third conductive plate 5 is also located in the cover portion 6.

The terminal block 1 including the support 2, the first conductive plate 3, the second conductive plate 4, and the third conductive plate 5 as described above will be described.
The terminal block 1 inserts the respective conductive plates 3, 4, 5 into the corresponding cutout step portions 10, 10..., And the corresponding primary side connection terminals 13 of the respective conductive plates 3, 4, 5 respectively. The side connection portion 9 is fixed by a screw 20. The terminal block 1 assembled in this way has a screw-type secondary side connection portion consisting of three screw-type secondary side connection terminals 12, 12,. Plug-in type secondary side connection terminals 14, 14... That can be connected to plug-in type breakers are provided. The plug-in type secondary side connection terminals 14, 14... Are covered by the cover portion 6 and are protected from inadvertent contact with other external devices or the like that will be installed around the plug-in type secondary side connection terminals 14, 14.

  The use of the terminal block 1 formed as described above will be described with reference to FIGS. FIG. 4A is an explanatory diagram showing a state in which a screw breaker (here, main breaker 21) is connected to the terminal block 1, and FIG. 4B is a plug-in breaker (here, electric breaker). FIG. 4C is an explanatory view showing a state in which both breakers 21 and 22 are connected to the terminal block 1. FIG. FIG. 5 is an explanatory diagram showing a state in which the screw-type secondary connection terminal 12 of the terminal block 1 is cut and a number of plug-in breakers are connected.

Since the terminal block 1 is provided with the screw type secondary side connection part, as shown to Fig.4 (a), a screw type breaker can be connected. Moreover, since the terminal block 1 is provided with the plug-in type secondary side connection part, as shown in FIG.4 (b), a plug-in type breaker can be connected. Therefore, when it is desired to distribute the commercial power source to the main breaker 21 for the general light / outlet circuit and the breaker 22 for the electric water heater in the distribution board, as shown in FIG. 1 can be connected to both breakers 21 and 22 simultaneously.
In addition, for example, when the screw type secondary side connection terminal 12 is not necessary and a large number of plug-in type breakers are to be connected, the screw type secondary side connection terminals 12 of the respective conductive plates 3, 4, 5 are cut. By doing so, the space of the plug-in type secondary side connection portion may be increased (in some cases, the entire front side of the terminal block 1 may be used as the plug-in type secondary side connection portion as shown in FIG. 5). Is possible).

According to the terminal block 1 having the above-described configuration, both a screw breaker and a plug-in breaker can be connected (that is, the structure of the terminal portion of the breaker is not limited). Therefore, unlike the prior art, it is not necessary to prepare a plurality of types of terminal blocks according to the structure of the primary side terminal portion of the breaker, or to use them separately for mounting on the distribution board, which is very convenient.
In addition, both screw-type and plug-in type breakers can be connected to one terminal block at the same time, so it is mounted on a distribution board as compared with the conventional case where multiple terminal blocks are mounted. The work which concerns on becomes easy. Furthermore, the space required for mounting the terminal block can be reduced as compared with the conventional case (this is because the screw-type secondary side connection terminal 12 and the plug-in type secondary side connection terminal 14 are the primary side connection terminals. Therefore, it is possible to expect effects such as downsizing the case of the distribution board and improving the degree of freedom related to the installation of the distribution board.

Furthermore, each of the conductive plates 3, 4, 5 includes a screw type secondary side connection terminal 12 and a plug-in type secondary side connection terminal 14. Therefore, the number of members can be reduced, cost reduction, ease of assembly of the terminal block 1, and the like can be achieved.
Furthermore, the terminal block 1 inserts and locks the conductive plates 3, 4, 5 into the corresponding notch steps 10, 10... And the primary side connection terminals of the conductive plates 3, 4, 5. 13 is fixed with the screw 20 and assembled, so that the assembly work is easy and the conductive plates 3, 4, and 5 are securely fixed with the screw 20. The safety and reliability of the board can be improved.

In addition, the screw-type secondary connection terminals 12 of the conductive plates 3, 4, 5 are provided so as to have substantially the same height when the conductive plates 3, 4, 5 are attached to the support 2. The present invention is applicable to general screw breakers that have been used conventionally, and is versatile.
In addition, since the screw type secondary side connection terminals 12, 12,... Of the terminal block 1 can be cut, even if a large space is required as a plug-in type secondary side connection part, the screw is appropriately screwed. This can be dealt with by cutting off the secondary connection terminals 12, 12. Therefore, the terminal block 1 can be used not only when a large number of plug-in breakers are desired to be connected, but also when, for example, a conventional screw-type breaker is replaced with a plug-in breaker. The terminal block 1 can be handled without replacement, and can be made to be very versatile.

  In addition, the structure which concerns on the terminal block of this invention is not limited at all to the aspect of the said embodiment, In the range which does not deviate from the meaning of this invention, it can change suitably as needed.

For example, in the above embodiment, when connecting a plug-in type breaker without cutting the screw type secondary side connection terminal, only one plug-in type breaker is connected, but naturally a plurality of plug-in type breakers are connected. Can be connected, and the length (width in the left-right direction) of the plug-in type secondary connection terminal can be changed as appropriate.
Moreover, although the primary side connection terminal is a screw type, the primary side connection terminal may be a plug-in type, and there is no problem even if it is configured to be compatible with both types such as a secondary side connection terminal.

Furthermore, the shape of each conductive plate can also be changed as appropriate. The first conductive plate attached to the upper stage is formed in a T shape, and the second and third conductive plates attached to the middle and lower stages are formed in a cross shape. Alternatively, the portion functioning as the plug-in type secondary side connection terminal may be configured as an L-shaped plane so as to expand the plug-in type secondary side connection portion.
Furthermore, in the above embodiment, notched step portions are engraved on the partition plate so that each conductive plate can be locked and supported. However, the partition plate is formed in a step shape so that the conductive plate is placed on each step portion. There is no problem even if each of the configurations is supported by being locked.

Furthermore, in the above embodiment, only the screw type secondary side connection terminal can be cut, but the screw type secondary side connection terminal can also be configured to be detachable.
In addition, in the above embodiment, both the screw type secondary side connection terminal and the plug-in type secondary side connection terminal are integrally provided on one conductive plate, but the screw type secondary side connection terminal and The plug-in type secondary side connection terminal may be provided independently (for example, a metal plate is separately provided for the screw type secondary side connection terminal and the plug-in type secondary side connection terminal, for example).

It is perspective explanatory drawing which showed the external appearance of the terminal block. It is perspective explanatory drawing which showed the external appearance of the support body. (A) is a 1st electroconductive board, (b) is a 2nd electroconductive board, (c) is the perspective explanatory drawing which each showed the external appearance of the 3rd electroconductive board. (A) is explanatory drawing which showed the state which connected the screw type breaker to the terminal block, (b) is explanatory drawing which showed the state which connected the plug-in type breaker to the terminal block, (c) is a screw type to the terminal block It is explanatory drawing which showed the state which connected both the plug-in type breakers. It is explanatory drawing which showed the state which cut | disconnected the screw type secondary side connection terminal of the terminal block, and connected many plug-in type breakers.

Explanation of symbols

  1 .... Terminal block 2 .... Support body 3 .... First conductive plate 4 .... Second conductive plate 5 .... Third conductive plate 6 .... Cover part 7, 7a, 7b, 7c・ Partition plate, 8 ・ ・ Right-side plate, 9, 9a, 9b, 9c ・ ・ Primary side connection part 10, 10a, 10b, 10c ・ ・ Notch step part, 11 ・ ・ Screw hole, 12 ・ ・ Screw type 2 Secondary connection terminal, 13 ... Primary connection terminal, 14 ... Plug-in type secondary connection terminal, 20 ... Screw, 21 ... Main breaker (screw breaker), 22 ... Electric water heater breaker (plug) In-type breaker).

Claims (2)

A primary side connection portion comprising a plurality of primary side connection terminals, and a secondary side connection portion comprising a plurality of secondary side connection terminals, wherein a primary side terminal portion of a breaker is provided on the secondary side connection portion. A terminal block to be connected,
Integrally with the connecting screw secondary terminal, and a connection terminal on the primary side portion connectable plug-in the secondary side of the plug-type breaker terminal having a root Ji type primary-side terminal portion connectable to a screw hole of the breaker By arranging a plurality of conductive plates provided side by side,
A terminal block comprising a screw type secondary side connection part and a plug-in type secondary side connection part as the secondary side connection part . The conductive plate is composed of a thin plate portion elongated in a predetermined direction and a branch portion protruding so as to be cut from the thin plate portion in an orthogonal direction, and a screw type secondary side connection terminal is provided at an end portion of the branch portion. The terminal block according to claim 1 , wherein when the branch portion is cut, the cut portion can be used as a plug-in type secondary connection terminal.

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