JP2024004761A - Plug-in adapter, breaker with adapter, plug-in breaker, and electrical and electronic equipment storage box - Google Patents

Abstract

To enable a different arrangement of a copper bar and a breaker than before.SOLUTION: A plug-in adapter 1 includes a breaker connection portion connectable to a connection terminal portion of a breaker 4 having a connection terminal portion to which a cable can be connected, and a plug-in terminal portion 12 to which a copper bar can be connected, and in the state in which the plug-in adapter is attached to the breaker, a copper bar connection portion 13 having the plug-in terminal portion can be arranged so as to face the side surface extending parallel to the wire output direction of the connection terminal portion of the breaker.SELECTED DRAWING: Figure 1

Description

The present invention relates to a plug-in adapter, a breaker with an adapter, a plug-in breaker, and a box for storing electrical and electronic equipment.

As described in Patent Document 1 and Patent Document 2, plug-in structures such as a plug-in adapter and a plug-in breaker for converting a screw type breaker into a plug-in type breaker are known. The plug-in terminal provided on the primary side of the breaker is placed on the output direction side of the connection terminal section of the breaker, and when the breaker is connected to the copper bar, the primary side of the breaker and the copper bar are close to each other. It will be located at

Japanese Patent Application Publication No. 2006-230134 Japanese Patent Application Publication No. 2006-236690

For this reason, there are many restrictions on the arrangement of the copper bars and breakers, and it is sometimes difficult to arrange the copper bars and breakers efficiently.

The inventor of this case attempted to solve this problem by intensively studying this point. The problem to be solved by the present invention is to enable a different arrangement of copper bars and breakers than before.

In order to solve the above problem, a plug-in adapter is provided which includes a breaker connection part that can be connected to a connection terminal part and a plug-in terminal part to which a copper bar can be connected. , a plug-in adapter in which a copper bar connection part including a plug-in terminal part can be arranged so as to face a side surface extending parallel to the wire output direction of a connection terminal part of a breaker.

Further, it is preferable that this plug-in adapter is connected to a breaker to form a breaker with an adapter.

Further, the plug-in breaker includes a connection terminal portion and a plug-in terminal portion to which a copper bar can be connected, wherein the plug-in terminal portion is connected to a copper bar from a side surface extending parallel to the wire output direction of the connection terminal portion of the breaker. A plug-in breaker that can be connected to a bar.

Further, it is preferable that the electric/electronic equipment storage box accommodates at least one of the adapter-equipped breaker and the plug-in breaker in a housing.

In addition, at least one surface of the casing is provided with an insertion hole through which a cable connectable to the connection terminal section can be inserted, and at least one breaker with an adapter or at least one plug-in breaker is connected so that the output direction of the connection terminal section is It is preferable to arrange it so that it faces the surface provided with the insertion hole.

Moreover, it is preferable that all the breakers connected to the copper bar among the breakers housed in the casing be either the adapter-equipped breakers or the plug-in breakers.

The present invention allows for a different arrangement of copper bars and breakers than before.

It is a perspective view of the plug-in adapter in an embodiment. FIG. 2 is a front view of an example of the plug-in adapter shown in FIG. 1 and a breaker to which the plug-in adapter is attached. However, the direction of wire output from the connection terminal portion is indicated by a thick arrow. FIG. 3 is a perspective view showing a state in which the plug-in adapter shown in FIG. 2 and the breaker are connected to form a breaker with an adapter. It is a figure which shows that a plug-in adapter can be reversed and attached to a breaker. It is a perspective view of the plug-in breaker in an embodiment. FIG. 4 is a diagram illustrating an example of the arrangement of the breaker and copper bars of the electric/electronic equipment storage box in which the breaker with adapter shown in FIG. 3 is incorporated. It is a perspective view showing an example of a breaker with an adapter and a movable base. 7 is an enlarged view of a part of the branch breaker shown in FIG. 6. FIG. FIG. 7 is a diagram showing an example of secondary side wiring when a conventional breaker is connected to a copper bar as a branch breaker. FIG. 4 is a diagram showing an example of secondary side wiring when the adapter-equipped breaker shown in FIG. 3 is connected to a copper bar as a branch breaker. It is a figure which shows the example of arrangement|positioning when the breaker with an adapter shown in FIG. 3 is used as a main breaker and a branch breaker.

A mode for carrying out the invention will be shown below. As can be understood from what is shown in FIGS. 1 to 3, the plug-in adapter 1 of the embodiment is connectable to the connection terminal section 41 of the breaker 4, which has the connection terminal section 41 to which the cable 91 can be connected. It includes a breaker connection part 11 and a plug-in terminal part 12 to which a copper bar 92 can be connected. In addition, when the plug-in adapter 1 is attached to the breaker 4, the plug-in adapter 1 connects the copper bar connection portion 13 including the plug-in terminal portion 12 in parallel to the wire output direction of the connection terminal portion 41 of the breaker 4. It can be placed so as to face the extending side. Therefore, it is possible to arrange the copper bar 92 and the breaker 4 differently from the conventional arrangement.

By attaching the plug-in adapter 1 to the breaker 4 having the connection terminal portion 41, it is possible to facilitate connection to the copper bar 92. The breaker 4 to which the plug-in adapter 1 is connected usually has connection terminal portions 41 at both ends to which cables 91, bar members, etc. can be connected. This connection terminal section 41 may be a so-called screw terminal that connects the cable 91 or a bar member to the breaker 4 by tightening a screw, or a so-called quick connection terminal that connects the cable 91 or a bar member to the breaker 4. The cable 91 may be connected to the breaker 4 by a force that pinches the inserted cable 91.

Generally, the breaker 4 has a handle 42 on the front side that can turn the breaker 4 on and off, and is mounted so that the back side is in contact with a mounting surface (such as the movable base 75). In the example shown in FIG. 2, one end of the breaker 4 is provided with a plurality of connection terminal portions 41, and the other end of the breaker 4 is provided with a plurality of connection terminal portions 41. By operating the handle 42 located between one end side and the other end side of the breaker 4 when viewed from the front, the connection between the connection terminal section 41 at one end side of the breaker 4 and the connection terminal section 41 at the other end side is established. You can toggle between the connected state and the disconnected state. In addition, in a normal breaker 4, the above state can be switched by moving the tip of the handle 42 from one end of the breaker 4 toward the other end or in the opposite direction when viewed from the front. can.

When attaching the plug-in adapter 1 to the breaker 4, it is often the case that the plug-in adapter 1 is connected to the connection terminal section 41 on one end side, and the plug-in adapter 1 is not connected on the other end side. Although an example will be mainly explained, it is possible to attach the plug-in adapter 1 to the connection terminal portions 41 located at one end and the other end of the breaker 4, respectively.

The plug-in adapter 1 includes a breaker connection part 11 connectable to the connection terminal part 41 of the breaker 4 and a plug-in terminal part 12 to which a copper bar 92 can be connected, and in the embodiment, these are connected to the electrical circuit. connected by. The electric path in the embodiment is an electric wire, a bar member, etc. that connects the plug-in terminal section 12 and the breaker connection section 11, and by attaching a sensor to this electric path, data regarding the electricity energized to the plug-in adapter 1 can be obtained. , data regarding the plug-in adapter 1 and its peripheral devices may be acquired, such as acquiring data regarding the heat generated in the plug-in adapter 1.

Although the breaker connection part 11 shown in FIG. 3 is a Y-shaped crimp terminal, the shape and structure of the breaker connection part 11 are not limited to such an example. A breaker connection portion 11 provided in the plug-in adapter 1 is connected to a connection terminal portion 41 of the breaker 4 . More specifically, the breaker connection part 11 is connected to the connection terminal part 41 adjacent to any one of the four faces other than the front and back faces of the six faces of the breaker 4 having a substantially rectangular parallelepiped shape. In addition, in the normal breaker 4, the terminal portion adjacent to the surface located on the opposite side of this surface is also the connecting terminal portion 41.

On the other hand, in the conventionally used normal breaker 4, among the four surfaces other than the front and back surfaces, only two surfaces separated from each other are located in the output direction of the connection terminal portion 41. Connection of cables 91, bar members, etc. was not expected from the remaining two surfaces, and the connection terminal portions 41 were not lined up. For example, terminal parts such as the connection terminal part 41 are arranged side by side on the surface side located above and on the surface side located below when viewed from the center of the breaker 4. Terminal portions were not arranged side by side on the surface side located at the left side and the surface side located on the left side. Note that normally, when the breaker 4 having the connecting terminal portions 41 is viewed from the front, the connecting terminal portions 41 are lined up in the lateral direction, and the connecting terminal portions 41 are not lined up in the longitudinal direction.

In the embodiment, the plug-in terminal section 12 of the plug-in adapter 1 can be arranged so that the copper bar 92 can be arranged adjacent to the side where the terminal sections of the breaker 4 are not arranged side by side. For example, the configuration is such that the plug-in terminal portion 12 can be arranged on the surface side located on the right side or the surface side located on the left side when viewed from the center of the breaker 4. Of course, a configuration may be adopted in which the plug-in terminal section 12 can be arranged on the surface side located on the right side and the surface side located on the left side when viewed from the center of the breaker 4. In addition, in the embodiment, the breaker 4 to which the plug-in adapter 1 is attached has a surface adjacent to the breaker connection part 11 and a plug-in terminal part 12 adjacent to it among four faces other than the front and back faces of the breaker 4. Although the surfaces are configured to form approximately right angles, they do not necessarily have to form right angles. For example, they may form acute angles or obtuse angles. That is, the direction of the breaker 4 may be arranged in a direction different from the horizontal direction or the vertical direction with respect to the copper bar 92.

The plug-in adapter 1 shown in FIG. 1 etc. includes a copper bar connection part 13 having a plug-in terminal part 12, and an extension that protrudes from the copper bar connection part 13 and can be placed opposite the connection terminal part 41 of the breaker 4. It is provided with a mounting section 14. More specifically, the copper bar connection portion 13 of the embodiment is configured to be able to extend along either the left or right side of the breaker 4. Further, the extending portion 14 of the embodiment is configured to be able to extend along a side surface located either above or below the breaker 4. Note that this extension portion 14 can be positioned substantially parallel to the direction in which the connection terminal portions 41 of the breaker 4 are arranged in a front view.

The plug-in adapter 1 only needs to include at least the copper bar connection part 13, and does not need to include the extension part 14, but it is preferable that it also include the extension part 14. The extending portion 14 may have any shape, but when viewed from the front when attached to the breaker 4, the copper bar connecting portion 13 and the extending portion 14 form a substantially L-shape. It is preferable.

The copper bar connecting portion 13 of the embodiment is provided with a groove 13a at 90 degrees to the thickness direction of the copper bar connecting portion 13, and the copper bar 92 can be inserted into this groove 13a. The plug-in terminal portion 12 enables electrical connection with the copper bar 92 when inserted into the groove 13a. In the embodiment, the plug-in terminal section 12 is configured to be able to sandwich the copper bar 92 inserted into the groove 13a, and can come into contact with both the front and back surfaces of the copper bar 92. Also, in the embodiment. The groove 13a provided in the copper bar connection part 13 is configured to cross between the ends of the copper bar connection part 13, and can be inserted into the copper bar 92 regardless of its length. Note that in the example shown in FIG. 3, three grooves 13a to which the plug-in terminal portions 12 are attached are lined up for the rectangular parallelepiped-shaped copper bar connection portion 13, but this number is not necessarily three. There's no need. The number may match the number of connection terminal portions 41 of the breaker 4, or when increasing the current capacity, the number may be an integral multiple of the number of connection terminal portions 41 of the breaker 4.

It is preferable that the extension part 14 is provided with a cover part 14a that can cover the connection terminal part 41 to which the breaker connection part 11 is connected. The cover part 14a may be provided with a through hole 14b into which a tool can be inserted in order to enable work for fixing the breaker connection part 11 and the connection terminal part 41 after covering the connection terminal part 41. However, a part of the cover portion 14a may be constructed to be openable and closable. Further, it is preferable that the extending portion 14 is provided with an exhaust hole 14c that can exhaust the arc gas released when the contact of the breaker 4 is opened. The exhaust hole is provided on a surface extending from the end of the cover portion 14a opposite to the breaker 4 toward the back side, so that the arc gas released from the connection terminal portion 41 side of the breaker 4 is transferred from the exhaust hole to the connection terminal. It becomes possible to exhaust air in the direction of the section 41.

The plug-in adapter 1 may be attached to the breaker 4 in any manner. For example, the breaker 4 and the plug-in adapter 1 may be fastened with a fastener such as a screw, or the plug-in adapter 1 may be connected to the breaker 4 using a locking part such as a claw provided on the plug-in adapter 1. It may be something that is locked to.

The positional relationship between the plug-in terminal portion 12 and the breaker connection portion 11 in the plug-in adapter 1 is reversed depending on whether the breaker 4 is placed on the left side or the right side of the copper bar 92 in a distribution board or the like. Therefore, it is preferable that the same plug-in adapter 1 can be used whether it is placed on the left side or the right side of the copper bar 92 (see FIG. 4). .

Moreover, it is preferable that the position of the breaker connection part 11 connected to the connection terminal part 41 of the breaker 4 is changeable. In particular, it is preferable that the position of the breaker connection portion 11 be changeable in the thickness direction of the breaker 4. For example, by providing a plurality of attachment parts for attaching the breaker connection part 11 in the thickness direction of the breaker 4, the attachment position of the breaker connection part 11 can be changed, or the attached breaker connection part 11 can be installed in the thickness direction of the breaker 4. It is preferable to have a structure in which a long hole is provided to enable movement.

Up to this point, by connecting the plug-in adapter 1 to the breaker 4 and using the breaker 5 with an adapter, it is possible to arrange the copper bar 92 and the breaker 4 differently from the conventional arrangement. By changing the configuration itself, it may be possible to arrange the copper bar 92 and the breaker 4 differently from the conventional arrangement.

In this case, the plug-in breaker 6 includes a connection terminal portion 41 and a plug-in terminal portion 12 to which a copper bar 92 can be connected, and the plug-in terminal portion 12 is connected in the output direction of the connection terminal portion 41 of the breaker 4. Preferably, the plug-in breaker 6 is provided so as to be connectable to the copper bar from the side surface extending parallel to the breaker 6 (see FIG. 5).

In the case of the plug-in breaker 6 including the connection terminal portion 41 and the plug-in terminal portion 12, the plug-in terminal portion 12 and the connection terminal portion 41 are electrically connected by an electric path. This electric path usually includes a fixed connector, a fixed contact, a movable connector, a movable contact, etc. in addition to electric wires and bar members. In the example shown in FIG. 5, of the four surfaces other than the front and back surfaces of the plug-in breaker 6, the surface adjacent to the plug-in terminal portion 12 located in the wire output direction of the plug-in terminal portion 12, and the connecting terminal portion 41 Although the surfaces on which are provided are configured to form a substantially right angle, they do not necessarily have to form a right angle. For example, they may form acute angles or obtuse angles.

Here, the electric/electronic equipment storage box 7 in which the adapter-equipped breaker 5 and the plug-in breaker 6 in which the plug-in adapter 1 is connected to the breaker 4 will be described. The electrical/electronic equipment storage box 7 may be any box for storing electrical/electronic equipment such as the breaker 4, such as a distribution board, a switchboard, a control panel, or a high-voltage power receiving facility. In the electrical and electronic equipment storage box 7 in the embodiment, in order to mount electrical and electronic equipment inside the housing 71, a mounting rail 73 and a mounting base 74 that is passed between the two mounting rails 73 are installed in the housing 71. (See Figure 6). Further, copper bars 92 are stacked and installed to supply power from the main breaker to the branch breakers.

A method for storing the plug-in breaker 6 and the breaker with adapter 5 in such an electric/electronic equipment storage box 7 will be illustrated. For example, the plug-in breaker 6 or the breaker with an adapter 5 is attached to a movable base 75 provided with a claw portion that allows movement in the left and right directions with respect to the mounting base 74 (see FIG. 7). A movable base 75 equipped with a plug-in breaker 6 and a breaker with an adapter 5 is placed on the mounting base 74. Thereafter, by moving the movable base 75 in the direction of the copper bar 92, the plug-in terminal section 12 is plug-in connected to the copper bar 92 (see FIG. 8). After the plug-in connection, the movable base 75 and the mounting base 74 are fixed with a fastener such as a screw, so that the plug-in breaker 6 or the breaker with an adapter 5 can be fixed to the mounting base 74.

In this example, the plug-in breaker 6 and the breaker with an adapter 5 are fixed to the mounting base 74 via the movable base 75, but the plug-in breaker 6 and the breaker with an adapter 5 are fixed to the mounting base 74 without using the movable base 75. You may. In this case, for example, a claw portion or the like may be provided on the bottom surface of the plug-in breaker 6 or the breaker with adapter 5 so that the plug-in breaker 6 or the breaker with an adapter 5 can be moved in the left-right direction with respect to the mounting base 74. In other words, the orientation of the plug-in breaker 6 may be different from the horizontal or vertical direction with respect to the copper bar 92. Further, the point that an exhaust port is provided on the opposite side of the connection terminal portion 41 when viewed from the handle 42 is similar to the breaker with an adapter 5 in which the plug-in adapter 1 is connected to the breaker 4.

Here, the breaker of the present invention and the conventional breaker will be explained in detail separately. In the following explanation, what is referred to as an inventive breaker is the plug-in breaker 6 or the breaker with adapter 5 of the present invention, and what is referred to as a conventional breaker is the plug-in terminal section 12 and the breaker that has been used conventionally. , the breaker 4 has connection terminal portions 41 located at both ends of the breaker 4.

When storing the breaker of the present invention in an electric/electronic equipment storage box 7 such as a distribution board, at least one of the breaker with adapter 5 of the breaker of the present invention or the plug-in breaker 6 of the breaker of the present invention is stored in the housing 71. By simply doing so, it becomes possible to arrange the copper bar 92 and the breaker 4 differently from the conventional arrangement. Furthermore, when storing the breaker of the present invention in the box 7 for storing electrical and electronic equipment, this does not mean that both the breaker of the present invention and the conventional breaker cannot be provided inside one box 7 for storing electrical and electronic equipment. (See Figures 6 and 8). For example, a breaker with a large current capacity (large wire size) should be the inventive breaker, and a breaker with a small current capacity (small wire size) should be a conventional breaker. , and the electrical/electronic equipment storage box 7 may be a mixture of both. Of course, among the breakers housed in the casing 71, all the breakers 4 connected to the copper bar 92 may be the breakers of the present invention type.

Next, specific changes caused by changing the positional relationship between the breaker and the copper bar 92 will be explained. For example, when a conventional breaker is installed in the electrical/electronic equipment storage box 7 installed so that the copper bar 92 extends vertically, the plug-in terminal section 12 on the primary side is on the copper bar 92 side, and the plug-in terminal section 12 on the secondary side is The connection terminal portion 41 faces the side surface of the housing 71 (see FIG. 9). In the example shown in FIG. 9, a cable 91 is connected to the secondary side connection terminal section 41 in order to supply power to load equipment (including electrical equipment and another electrical/electronic equipment storage box 7); When guiding the cable 91 into the insertion hole 72 provided on the lower surface of the housing 71, it is necessary to bend the cable 91 significantly, resulting in poor workability. The type and thickness of the cable 91 are selected based on the current capacity of the electrical and electronic equipment, but if a thick cable 91 is selected, the cable 91 should not be bent substantially vertically. It is difficult and requires a lot of space for bending. Note that such a problem may similarly occur in the case of a configuration in which the connected cable 91 is guided to the insertion hole 72 provided on the upper surface of the housing 71.

In other words, when the conventional breaker is installed in the electrical and electronic equipment storage box 7 in which the copper bar 92 is installed so as to extend in the vertical direction, the workability of wiring to the connection terminal section 41 on the secondary side becomes poor. There is a risk. In addition, it is necessary to determine the distance from the end of the breaker 4 on the secondary side to the side surface of the housing 71 in consideration of the space required to bend the cable 91, and the horizontal size of the housing 71 is large. There is a risk that it will become.

On the other hand, when the breaker of the present invention is connected to the electrical/electronic equipment storage box 7 in which the copper bar 92 is arranged so as to extend in the vertical direction, for example, the plug-in terminal section 12 on the primary side is on the copper bar 92 side, The connection terminal portion 41 on the secondary side faces the upper surface side or the lower surface side of the housing 71 (see FIG. 10). A cable 91 is connected to the secondary side connection terminal section 41 for supplying power to a load device. When the connected cable 91 is guided into the insertion hole 72 of the casing 71, there is no need to bend the cable 91 significantly, resulting in good workability. Further, there is no need to secure a large space for bending the cable 91.

In other words, when installing the electrical and electronic equipment storage box 7 in which the copper bar 92 is installed so as to extend in the vertical direction, using the breaker of the present invention makes it easier to connect the secondary side than when using the conventional breaker. The workability of wiring to the terminal portion 41 can be improved. Furthermore, it is possible to reduce the distance between the copper bar 92 and the end of the breaker 4 closest to the side surface of the casing 71 (the side surface of the breaker 4). Further, there is no need to consider the space required to bend the cable 91, and the size of the housing 71 in the left and right direction can be reduced.

As can be understood from such an example, at least one surface of the casing 71 is provided with an insertion hole 72 through which the cable 91 can be inserted, and at least one breaker 5 with an adapter is connected to the case where the breaker connection part 11 is not fixed. Either the connecting terminal section 41 is arranged so that the wire output direction faces the surface provided with the insertion hole 72, or at least one plug-in breaker 6 is arranged so that the wire output direction of the connection terminal section 41 faces the surface provided with the insertion hole 72. It is preferable to have a configuration in which they are arranged so as to face each other.

Up to now, a case has been described in which the breaker of the present invention is used as a branch breaker of a distribution panel, but the breaker of the present invention may also be used as a main breaker of a distribution panel (see FIG. 11). In conventional distribution boards, the main breaker is not provided with the plug-in terminal section 12, and the copper bar 92 to which the main breaker and the branch breaker are connected is connected using a separate copper bar 92 or a connecting member such as an electric wire. However, when the breaker of the present invention is used as the main breaker, the main breaker can also be connected to the copper bar 92 to which the branch breakers are connected. Therefore, there is no need to provide a connecting member. Therefore, the work of assembling the connecting members can be eliminated, and the space for the connecting members can be eliminated, so that the size and cost of the housing 71 can be reduced.

Moreover, although the case has been described in which the copper bar 92 is installed in the electrical and electronic equipment storage box 7 installed so as to extend in the vertical direction, the copper bar 92 is installed in the electrical and electronic equipment storage box 7 so as to extend in the horizontal direction. The connection terminal portion 41 of the breaker of the present invention, which is installed in the copper bar and connected to the copper bar, may be arranged so that the wire output direction thereof faces in the left-right direction.

When arc gas is released on the primary side of the breaker when the breaker contacts are opened, in conventional breakers, much arc gas is released in the direction of the copper bar 92, so the copper bar 92 is not exposed to the arc gas. It ends up. On the other hand, in the breaker of the present invention, the amount of arc gas emitted in the direction of the copper bar 92 can be reduced, so the amount of arc gas exposed to the copper bar 92 can be suppressed.

Although the present invention has been described above using the embodiments as examples, the present invention is not limited to the above embodiments, and can be modified in various ways.

1 Plug-in adapter 4 Breaker 5 Breaker with adapter 6 Plug-in breaker 7 Electrical and electronic equipment storage box 11 Breaker connection section 12 Plug-in terminal section 13 Copper bar connection section 41 Connection terminal section 71 Housing 72 Insertion hole 91 Cable 92 Copper bar

Claims (6)

A plug-in adapter comprising a breaker connection part connectable to a connection terminal part of a breaker, and a plug-in terminal part to which a copper bar can be connected,
With the plug-in adapter attached to the breaker,
A plug-in adapter in which a copper bar connection part including a plug-in terminal part can be arranged so as to face a side surface extending parallel to the wire output direction of the connection terminal part of the breaker. A breaker with an adapter, the plug-in adapter according to claim 1 being connected to the breaker. A plug-in breaker comprising a connection terminal part and a plug-in terminal part to which a copper bar can be connected,
A plug-in breaker with a plug-in terminal that can be connected to a copper bar from the side that extends parallel to the wire output direction of the breaker's connection terminal. An electric/electronic equipment storage box in which at least one of the adapter-equipped breaker according to claim 2 or the plug-in breaker according to claim 3 is housed in a housing. At least one surface of the housing has an insertion hole through which a cable connectable to the connection terminal section can be inserted,
5. The electric/electronic equipment storage box according to claim 4, wherein at least one breaker with an adapter or at least one plug-in breaker is arranged such that the wire output direction of the connection terminal portion faces the surface provided with the insertion hole. According to claim 4, among the breakers housed in the housing, all the breakers connected to the copper bar are either the adapter-equipped breaker according to claim 2 or the plug-in breaker according to claim 3. A box for storing electrical and electronic equipment.