JP2003217432A - Circuit breaker and distribution board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide circuit breakers enabling easy identification of the condition of the circuit breakers being completely connected to conductive bars when arranging them in parallel in the extending directions of the conductive bars, and a distribution board using the same. <P>SOLUTION: The distribution board comprises a plurality of branch breakers 32 provided in parallel on the front side of a second mounting base 50 arranged in a front-open box body 10 in the extending directions of the conductive bars 60a-60b. The branch breakers 32 as the plug-in circuit breakers have insertion grooves 37a-37c in which the conductive bars 60a-60c are inserted, formed at one ends of breaker bodies 32b in the longitudinal directions and knife-edge bearings 35a, 35b stored in the insertion grooves 37a, 37b. Load side terminals, not illustrated, are stored in the other ends of the breaker bodies 32b of the branch breakers 32. Grooved pilot lines 39 formed along the cross directions of the breaker bodies 32b are provided in the front faces of the breaker bodies 32b of the branch breakers 32. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called plug-in type circuit breaker in which a conductive bar is plugged in and a distribution board equipped with the circuit breaker.

[0002]

2. Description of the Related Art In recent years, there has been provided a distribution board in which the construction is reduced by using a so-called plug-in type circuit breaker in which a conductive bar is inserted and connected.

Even the applicant of the present invention has disclosed in Japanese Patent Laid-Open No. 10-241.
As disclosed in Japanese Laid-Open Patent Publication No. 540, a power source side terminal including a blade receiver connected to a conductive bar is provided on one end side of the body, and a load side terminal connected to a load is provided on the other end side of the body. There is proposed a circuit breaker in which a handle for opening and closing a contact inserted in an electric path between a power supply side terminal and a load side terminal in the body is provided on the front surface of the body. In addition,
This circuit breaker is used as a branch breaker in the distribution board, and is arranged in parallel along the extension direction of the conductive bar.

[0004]

However, in the conventional circuit breaker, it is difficult to understand how far the conductive bar is pushed from the side of the conductive bar to the conductive bar and the conductive bar is inserted and connected to the blade receiver. There was a problem that it was difficult to confirm the connection completion state between the bar and the circuit breaker.

The present invention has been made in view of the above circumstances, and an object thereof is to make it possible to easily confirm the connection completion state of the circuit breaker with respect to the conductive bar when the conductive bar is installed in parallel in the extension direction. To provide a power supply device and a distribution board using the power supply device.

[0006]

In order to achieve the above object, the invention of claim 1 is a power source side terminal comprising a blade receiver connected to a conductive bar arranged inside a box main body of a distribution board. Has a load side terminal connected to a load on the other end side in the longitudinal direction of the body and has a handle for opening and closing the front side and the body inside the box body. A plurality of circuit breakers arranged side by side in the short-side direction, characterized in that an indicator line along the short-side direction of the body is provided on the front surface of the body. When arranging the vessels in parallel along the lateral direction of the body, that is, when arranging them in the extension direction of the conductive bar, if the conductive bar is not inserted in the blade receiver and there is a circuit breaker If the circuit breakers installed side by side are not aligned, the conductive bar Can facilitate securely connected and whether the easily verify the connection state, confirmation of the connection completion state of the circuit breaker to the conductive bar when arranged side by side in the extending direction of the conductive bars.

According to a second aspect of the present invention, in the first aspect of the present invention, the display line is provided on the front surface of the body over the both ends in the lateral direction. It becomes easy to confirm the positional deviation with the container in the longitudinal direction.

According to a third aspect of the present invention, in the first or second aspect of the invention, the display line is a groove formed on the front surface of the body, so that a separate member is separately prepared as the display line. Therefore, it is possible to reduce the cost.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, since the display line is provided on a seal attached to the front surface of the body, the plug-in type that has already been produced. The display line can be provided on the front surface of the body simply by sticking a seal on the circuit breaker, and thus the work for producing the display line becomes easy.

According to the invention of claim 5, in the invention of claim 4, since the color of the display line is different from that of the container, the display line can be easily seen.

According to a sixth aspect of the present invention, a box main body having a front opening, a lid attached to the front surface of the box main body, a main breaker housed inside the box main body, and a load side terminal of the main breaker are connected. 6. A plurality of branch breakers, which are arranged in parallel in the extension direction of the conductive bars, and whose power supply side terminals are electrically connected to the main breaker via the conductive bars, each branch breaker being any one of claims 1 to 5. The circuit breaker according to item 1 is used, and a display hole that allows the display line to be visually recognized when the conductive bar is inserted in the blade receiver of the circuit breaker and the connection is completed is provided in the lid body. When the lid is attached to the front of the box body, the conductive bar is provided on the blade receiver of the circuit breaker depending on whether the display line is visible through the display hole. Inserted and securely connected or not connected It can be confirmed.

According to a seventh aspect of the invention, in the sixth aspect of the invention, a window hole is formed in the lid to allow the handle of the branch breaker to be operated from the front side, and the display hole is
Since it is formed separately from the window hole, the handle of the circuit breaker can be operated from the front side of the lid body,
Further, since the display line is visible only through the display hole, the display line can be easily seen.

According to an eighth aspect of the present invention, in the sixth aspect, a window hole is formed in the lid to allow the handle of the branch breaker to be operated from the front side, and the display hole is
Since it is formed so as to communicate with the window hole, the handle of the circuit breaker can be operated from the front side of the lid, and when the display hole is formed separately from the window hole. In comparison, the display hole can be easily formed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) As shown in FIGS. 2 to 4, a distribution board according to the present embodiment has one main breaker 31 and a plurality of branch breakers (circuit breakers) 32.
A distribution board in which and are arranged inside the box 1,
The branch breakers 32 are arranged in two rows on the left and right. The box body 1 is a synthetic resin molded product and is composed of a box body 10 having a front opening, and a lid body 20 attached to the front side of the box body 10.

On the front side of the back plate 11 of the box body 10, a pair of left and right frames 14, 14 are arranged so that the distance from the back plate 11 is constant. A large number of through holes 15 are formed in each frame 14 at equal intervals in the vertical direction, and the main circuit breaker 3 is provided between the two frames 14, 14.
A first mounting base 40 for mounting 1 and a second mounting base 50 for mounting a plurality of branch breakers 32 are vertically arranged side by side. Here, the first mounting base 40
The second mounting base 50 is installed between the two frames 14, 14 by using fixing screws 16 screwed into the left and right through holes 15.

On the other hand, the lid 20 is provided with three rectangular window holes 21a to 21c. Window hole 21
a is exposed on the front side to enable the handle 31a of the main breaker 31 housed in the box body 10 to be operated, and the window holes 21b and 21c are handles 32a of the branch breaker 32.
Is exposed on the front surface side of the lid body 20 in order to be operable. Here, the left window hole 21b in FIG. 2 is opened in a vertically long rectangular shape that exposes the protrusions 32c of all (six) branch breakers 32 that are vertically arranged on the left side, and the right window hole is formed. 21c is the right side of all (6
Each of the branch breakers 32 is opened in a vertically long rectangular shape so as to expose the protrusion 32c.

The main breaker 31 is attached to the front surface of the first mounting base 40 using fixing screws 43. As shown in FIG. 3, the three load-side terminals 31c of the main breaker 31 are provided with conductive bars 60a, 60b, 60c, which are conductive plates and are arranged along the up-down direction in the box body 10, and a feed plate made of conductive plates. It is electrically connected via the bars 70a, 70b, 70c. The feed bars 70a to 70c and the conductive bars 60a to 60c are connected using a terminal screw 61 so as not to come off.

The conductive bars 60a to 60c are held by a bar holding member 64 made of a synthetic resin molded product that is attached to the second mounting base 50 with a fixing screw 65. Here, the bar holding member 64 holds the conductive bars 60a to 60c in a form of overlapping in the front-rear direction, and the conductive bar 60a of one of the conductive bars 60a to 60c is a voltage bar.
Is disposed at a position farthest from the second mounting base 50,
The conductive bar 60c of the other voltage electrode is arranged at a position closest to the second mounting base 50, and the conductive bar 60a and the conductive bar 6 are provided.
0c and the neutral conductive bar 60b are both conductive bars 60
It is arranged apart from a and 60c. That is, the conductive bars 60a to 60c are the conductive bars 60 of the voltage electrode from the front.
a, neutral pole conductive bar 60b, voltage pole conductive bar 60c
It is arranged in front and back at intervals.

The conductive bars 60a to 60c are branch breakers 3.
Two branch breakers 32 are provided in parallel in two rows on the left and right, as described above.
The branch breaker 32 is a so-called plug-in type circuit breaker, and as shown in FIG. 1, three slit-shaped insertion grooves 3 are formed at one end of the body 32b in the longitudinal direction (left and right direction in FIG. 1).
7a, 37b, 37c are provided. Here, the insertion grooves 37a to 37c are inserted from the front into the insertion groove 37a and the insertion groove 37.
b and the insertion groove 37c are provided in this order at a front and rear interval with each other, and the conductive bar 60 of the one voltage pole is provided in the insertion groove 37a.
a is inserted, and the conductive bar 60b of the neutral pole is inserted in the insertion groove 37b.
Is inserted, and the conductive bar 60c of the other voltage electrode is inserted into the insertion groove 37c. However, the branch breaker 32 in the present embodiment is electrically connected to only two of the conductive bars 60a to 60c, and the other one is treated as a dummy. For example, in the example shown in FIG. 4, the blade receivers 35a and 35b made of a conductive material are housed in the insertion grooves 37a and 37b of the left branch breaker 32, and the blade receiver 3
The conductive bar 60a is inserted and connected to 5a and the conductive bar 60b is inserted and connected to the blade receiver 35b, but the conductive bar 60c is only inserted into the insertion groove 37c and is not electrically connected. Further, in the insertion grooves 37b and 37c of the branch breaker 32 on the right side in FIG.
b, 35c are accommodated, and the conductive bar 6 is provided on the blade receiver 35b.
0b is inserted and connected, and the conductive bar 60c is inserted and connected to the blade receiver 35c, but the conductive bar 60a is only inserted into the insertion groove 37a and is not electrically connected.

Further, at the other end of the branch breaker 32 in the longitudinal direction of the body 32b, a load side terminal, which is a well-known quick-connect terminal composed of a terminal plate and a locking spring, is housed, though not shown. And the body 32b is inserted through the wire insertion hole 38a.
The electric wire inserted therein is held between the terminal plate and the locking spring to be electrically connected, and the electric wire is prevented from being pulled out (locked). In short, the branch breaker 32 has the conductive bar 60 on one end side of the body 32b.
blade receivers 35a, 35b (or 3 connected to a to 60c)
5b, 35c) and a load side terminal connected to a load at the other end of the body 32b, and in the body 32b in the electric path between the power supply side terminal and the load side terminal. A handle 32a for opening and closing an inserted contact (not shown) is provided in the center of the front surface of the body 32b. Two load-side terminals are provided at the other end of the branch breaker 32, and the wire insertion holes 38a, 38a are provided at the portions of the body 32b corresponding to the load-side terminals, respectively.
38a is formed.

As described above, the branch breaker 32 has the conductive bar 60a for the voltage pole, the conductive bar 60b for the neutral pole, and the conductive bar 60b.
The conductive bar 60c of the voltage pole is connected to the power supply line of the single-phase three-wire which is arranged in front and back with a space in between,
From the sides of the conductive bars 60a, 60b, 60c to the body 32b
The insertion grooves 37a, 37b, 37c provided at one end of the are fitted.

By the way, the body 32b of the branch breaker 32
A pair of mounting recesses 32d and 32e are formed in the rear portion of the container 32b so as to be separated from each other in the longitudinal direction of the container 32b. put it here,
A recess (not shown) is formed at the rear of the one end of the body 32 of the branch breaker 32, the one end face and the lower end face in the longitudinal direction being opened. The one end face of the inner surface of the recess is the one end face. An attachment recess 32d is formed on a surface parallel to the. That is, the one mounting recess 32d is formed at a position closer to the center than the one end face of the body 32 in the longitudinal direction. The other mounting recess 32e is formed on the other end surface of the body 32b in the longitudinal direction.

On the other hand, the second for attaching the branch breaker 32
The mounting base 50 is formed of a sheet metal (iron plate), and an inverted L-shaped mounting locking piece 52 that is inserted into the mounting recess 32d is cut and raised on the front surface of the central portion.
Locking springs 53 that are locked in the locking recesses 32e are attached to the front surfaces of the left and right ends.

Therefore, when the branch breaker 32 is attached to the second attachment base 50, the insertion grooves 37a to 37 are provided.
From the state in which a part of the conductive bars 60a to 60c in the width direction (the left-right direction in FIG. 1) is inserted into c, the branch breaker 32
Of the branch breaker 32 so that the attachment locking piece 52 is inserted into the attachment recess 32d and the conductive bars 60a to 60c are inserted into the insertion grooves 37a to 37c.
Slide from the width direction. At this time, the locking spring 53
Is locked in the locking recess 32e of the branch breaker 32, and the branch breaker 32 is fixed to the second mounting base 50.

By the way, on the front surface of the body 32 of the branch breaker 32, there is provided a display line 39 consisting of a groove along the lateral direction (width direction) of the body 32b. Here, the display line 39 is provided on the front surface of the other end in the longitudinal direction of the body 32b.

Therefore, in this embodiment, when the branch breakers 32 are arranged in parallel along the lateral direction of the body 32b,
That is, when the conductive bars 60a to 60b are arranged side by side in the extension direction, if the connection of all the branch breakers 32 to the conductive bars 60a to 60c is completed, the display lines 39 are moved up and down on both left and right sides as shown in FIG. Although they will be lined up along a straight line along the direction, the conductive bars 60a to 60c to the insertion grooves 37a to 37c will be assumed, like the branch breaker 32 on the left side of FIG.
Blades 35a, 35b and conductive bar 60
If some of the a and 60b are not connected,
Display line 39 of the branch breakers 32 arranged side by side as shown in FIG.
Does not form a straight line, it becomes easy to confirm the connection state of whether or not the conductive bars 60a to 60c are securely connected to the blade receivers 35a to 35c, and when the conductive bars 60a to 60c are arranged in parallel in the extending direction, It is possible to easily confirm the connection completion state of the branch breaker 32 with respect to 60a to 60c. Here, in the branch breaker 32 of the present embodiment, since the display line 39 is a groove formed on the front surface of the body 32b, it is not necessary to separately prepare another member as the display line 39, and the cost is reduced. be able to. The groove as the display line 39 may be formed at the same time as the molding, or may be formed by cutting the front surface of the body 32b after the molding.

Further, since the display line 39 is provided on the front surface of the body 32b of the branch breaker 32 over the both ends in the short direction of the body 32b, the display line 39 of the body 32 with the branch breakers 32 adjacent in the short direction. It becomes easy to confirm the positional deviation in the longitudinal direction.

By the way, as shown in FIG. 2, the conductive bars 60a to 60c are inserted into the insertion grooves 37a to 37c of the branch breaker 32 in the above-mentioned lid body 20 to the prescribed positions (that is, the conductive bars 60a, 60b is blade receiver 35a, 35
is securely inserted in b or the conductive bars 60b, 6
A pair of left and right display holes 22b and 22c that allow the display line 39 to be visually recognized from the front of the lid body 20 when 0c is surely inserted into the blade receivers 35b and 35c) are opened. Here, the left display hole 22b is opened in a vertically long shape so that the display lines 39 of a plurality (six in the illustrated example) of the branch breakers 32 arranged side by side in the vertical direction on the left side can be visually recognized, The display hole 22c on the right side is opened in a vertically long shape so that the display lines 39 of a plurality (6 in the illustrated example) of the branch breakers 32 arranged side by side in the vertical direction can be visually recognized on the right side. The left display hole 22b is the window hole 21 described above.
The display hole 22c on the right side is formed separately from the window hole 21b, and the display hole 22c on the right side is formed separately from the window hole 21c on the right side of the window hole 21c.

In the distribution board according to this embodiment, however, the display line 39 extends from the front of the lid 20 to the display holes 22b, 2b.
Check whether the blade receivers 35a, 35b (or 35b, 35c) of the branch breaker 32 are securely connected to the conductive bars 60a, 60b (or 60b, 60c) or not by seeing through 2c. be able to. That is, in the example shown in FIG. 2, the display line 39 of the third branch breaker 32 from the top among the six branch breakers 32 arranged in the vertical direction on the left side cannot be visually recognized from the front. Only the branch breaker 32 can confirm that the connection between the conductive bars 60a, 60b and the blade receivers 35a, 35b is not completed. In other words, only the branch breaker 32 has the insertion grooves 37a-3.
It can be seen that the amount of the conductive bars 60a to 60c inserted into 7c is insufficient. Here, in the lid body 20 in the present embodiment, the display line 39 is visible only through the display holes 22b and 22c, so that the display line 39 can be easily seen.

In the present embodiment, the branch breaker 32
The display line 39 of the window holes 21b, 21 in the body 32b.
Although the display holes 22b and 22c are formed separately from the protruding portion 32c exposed from c and the display holes 22b and 22c are formed separately from the window holes 21b and 21c, the display line 39 is formed in the window hole 21 in the body 32b.
Alternatively, the display holes 22b and 22c may be connected to the protrusions 32c exposed from the b and 21c so as to communicate with the window holes 21b and 21c, respectively.

(Embodiment 2) The branch breaker 32 in this embodiment is not the groove formed by the display line 39 described in Embodiment 1 on the front surface of the body 32b, but the branch breaker 32 shown in FIGS.
The difference is that the seal 80 is provided on the front surface of the body 32 as shown in FIG. Here, the display line 3
The color of 9 is different from the color of the body 32b of the branch breaker 32 (in the present embodiment, the color of the body 32b is black and the display line 39 is white. The color is not particularly limited and may be any color as long as the color of the body 32b and the color of the display line 39 are different and the display line 39 can be easily identified). In addition, the branch breaker 32 of the present embodiment
Then, the display line 39 is the window holes 21b, 21c of the body 32.
It is different in that it is attached to the front surface of the portion that is continuously provided to the protruding portion 32c exposed from. Since the other configuration of the branch breaker 32 is the same as that of the first embodiment, the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

However, in this embodiment, when the branch breakers 32 are arranged in parallel along the lateral direction of the body 32b,
That is, when the conductive bars 60a to 60b are arranged side by side in the extension direction, and if the connection of all the branch breakers 32 to the conductive bars 60a to 60c is completed, the display lines 39 are moved up and down on the left and right sides as shown in FIG. The branch breakers 32 on the left side of FIG. 12 are supposed to be arranged on a straight line along the direction.
The conductive bars 60a-6 to the insertion grooves 37a-37c as shown in FIG.
If the insertion amount of 0c is insufficient and the blade supports 35a, 35b and the conductive bars 60a, 60b are not connected,
As shown in FIG. 13, since the display line 39 does not become a straight line, it becomes easy to confirm the connection state of whether or not the conductive bars 60a to 60c are securely connected to the blade receivers 35a to 35c, and the conductive bars 60a to 60c can be easily confirmed. The branch breaker 3 for the conductive bars 60a to 60c is arranged in parallel in the extension direction.
It is possible to easily confirm the connection completion state of item 2. Here, in the branch breaker 32 of the present embodiment, since the display line 39 is provided on the seal 80 attached to the front surface of the body 32b, the seal 80 is attached to the already manufactured plug-in type branch breaker 32. The display line 39 can be provided on the front surface of the body 32b only by doing so, and thus the work of producing the display line 39 becomes easy. The color of the display line 39 is the body 3
Since it is different from the color of 2b, the display line 39
The display line 39 can be made easier to see as compared with the case where the display line 39 is formed by a groove.

By the way, the basic configuration of the distribution board of the present embodiment in which the above-mentioned distribution breaker 32 is arranged in the box body 10 is substantially the same as that of the first embodiment, and as shown in FIG. The window holes 21b and 21c and the display hole 22b described in 1.
It is different in that it is formed so as to communicate with 22c.
Since the other components are substantially the same as those of the first embodiment, the same components as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the distribution board according to the present embodiment, the display line 39 is provided from the front of the lid 20 as in the first embodiment.
Blades 35a, 35b (or 35) of the branch breaker 32 depending on whether or not it is visible through the display holes 22b, 22c.
b, 35c) are conductive bars 60a, 60b (or 60)
b, 60c), it is possible to confirm whether or not it is securely connected. That is, in the example shown in FIG. 9, the display line 39 of the third branch breaker 32 from the top among the six branch breakers 32 arranged in the vertical direction on the left side cannot be visually recognized from the front. Only the branch breaker 32 can confirm that the connection between the conductive bars 60a, 60b and the blade receivers 35a, 35b is not completed. In other words, this branch breaker 32
Conductive bars 60a to 60c only into the insertion grooves 37a to 37c
It can be seen that the insertion amount of is insufficient. Further, in the present embodiment, since the display holes 22b and 22c provided in the lid 20 are formed so as to communicate with the window holes 21b and 21c, the display holes 22b and 22c are formed separately from the window holes 21b and 21c. The display holes 22b and 22c can be formed more easily than the case. In the present embodiment, the display holes 22b and 22c provided in the lid 20 are formed so as to communicate with the window holes 21b and 21c, but the display line 39 is exposed from the window holes 21b and 21c in the body 32b. Collar 32c
And the display holes 22b, 2 are provided separately from each other as in the first embodiment.
2c may be formed separately from the window holes 21b and 21c.

In the distribution board of each of the above embodiments, the branch breaker 32 is electrically connected to two of the three conductive bars 60a to 60c. It may be electrically connected or a mixture of these.

[0036]

According to the first aspect of the present invention, the power source side terminal, which is a blade receiver connected to the conductive bar disposed inside the box body of the distribution board, is provided at one end side in the longitudinal direction of the body. A circuit breaker that has a load side terminal connected to the load on the other end side in the longitudinal direction of the body and that has a handle for opening and closing operation on the front side inside the box body in the lateral direction of the body A vessel, which is provided with an indicator line along the lateral direction of the vessel on the front surface of the vessel, and when these circuit breakers are arranged side by side along the lateral direction of the vessel, In other words, when arranging in parallel in the extension direction of the conductive bar, if there is a circuit breaker in which the conductive bar is displaced without being inserted into the blade receiver, the display lines of the circuit breakers arranged in parallel do not become a straight line, It is easy to check the connection status whether the conductive bar is securely connected to the blade receiver. The confirmation of the connection completion state of the circuit breaker to the conductive bar when arranged side by side in the extending direction of the conductive bar there is an effect that it easily.

According to a second aspect of the invention, in the first aspect of the invention, the display line is provided on both sides of the front face of the body in the short side direction. There is an effect that it is easy to confirm the positional deviation with the container in the longitudinal direction.

According to a third aspect of the invention, in the first or second aspect of the invention, since the display line is a groove formed on the front surface of the body, a separate member is separately prepared as the display line. It is not necessary to do so, and there is an effect that the cost can be reduced.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, since the display line is provided on a seal attached to the front surface of the body, a plug-in type that has already been produced. There is an effect that the display line can be provided on the front surface of the body only by sticking a seal on the circuit breaker, and thus the work of manufacturing the display line becomes easy.

According to the invention of claim 5, in the invention of claim 4, since the color of the display line is different from that of the container, there is an effect that the display line can be easily seen.

According to a sixth aspect of the present invention, a box main body having a front opening, a lid attached to the front of the box main body, a main breaker housed inside the box main body, and a load side terminal of the main breaker are connected. 6. A plurality of branch breakers, which are arranged in parallel in the extension direction of the conductive bars, and whose power supply side terminals are electrically connected to the main breaker via the conductive bars, each branch breaker being any one of claims 1 to 5. The circuit breaker according to item 1 is used, and a display hole that allows the display line to be visually recognized when the conductive bar is inserted in the blade receiver of the circuit breaker and the connection is completed is provided in the lid body. If the lid is attached to the front of the box body, the conductive bar is securely inserted into the blade receiver of the circuit breaker depending on whether the display line is visible through the display hole. Check if it is connected or not There is an effect that can be.

According to a seventh aspect of the invention, in the sixth aspect of the invention, a window hole is formed in the lid to allow the handle of the branch breaker to be operated from the front side, and the display hole is
Since it is formed separately from the window hole, the handle of the circuit breaker can be operated from the front side of the lid body,
Further, since the display line is visible only through the display hole, the display line can be easily seen.

According to an eighth aspect of the present invention, in the sixth aspect, a window hole is formed in the lid to allow the handle of the branch breaker to be operated from the front side, and the display hole is
Since it is formed so as to communicate with the window hole, the handle of the circuit breaker can be operated from the front side of the lid, and when the display hole is formed separately from the window hole. In comparison, the display hole can be easily formed.

[Brief description of drawings]

1A and 1B show a first embodiment, FIG. 1A is a front view of a branch breaker, and FIG. 1B is a partially cutaway bottom view of a state in which the branch breaker is connected to a conductive bar.

FIG. 2 is a front view of the distribution board in the above.

FIG. 3 is a front view of the above distribution board with a lid removed.

FIG. 4 is a partially cutaway bottom view of the above distribution board with a lid removed.

FIG. 5 is a front view showing a state in which the branch breaker in the above is connected to a conductive bar.

FIG. 6 is a partially cutaway bottom view showing a state in which the branch breaker of the same as above is connected to a conductive bar.

FIG. 7 is a front view showing a state in which the branch breaker in the above is connected to a conductive bar.

8A and 8B show a second embodiment, FIG. 8A is a front view of a branch breaker, and FIG. 8B is a partially cutaway bottom view of the branch breaker connected to a conductive bar.

FIG. 9 is a front view of the distribution board in the above.

FIG. 10 is a partially cutaway bottom view of the above distribution board with a lid removed.

FIG. 11 is a front view showing a state in which the branch breaker in the above is connected to a conductive bar.

FIG. 12 is a partially cutaway bottom view showing a state in which the branch breaker in the above is connected to a conductive bar.

FIG. 13 is a front view showing a state in which the branch breaker in the above is connected to a conductive bar.

[Explanation of symbols]

1 box 10 box body 20 lid 31 Master Breaker 31a handle 32 branch breaker 32a handle 32b body 35a, 35b blade receiver 37a to 37c insertion groove 39 Display line 40 1st mounting base 50 Second mounting base 60a-60c conductive bar

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takanobu Tanaka             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Masahiko Kagawa             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Yuji Hirai             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F-term (reference) 5G030 BA01 EA01 XX20

Claims (8)

[Claims] 1. A load side having a power supply side terminal, which is composed of a blade receiver connected to a conductive bar disposed inside a box body of a distribution board, at one end side in a longitudinal direction of the body and connected to a load. A circuit breaker having a terminal on the other end side in the longitudinal direction of the body and having a handle for opening / closing operation on the front side and arranged side by side in the lateral direction of the body inside the box body. A circuit breaker characterized in that a display line is provided on the front surface of the body along the lateral direction of the body. 2. The circuit breaker according to claim 1, wherein the display line is provided across both ends in the lateral direction on the front surface of the container. 3. The circuit breaker according to claim 1, wherein the display line comprises a groove formed on the front surface of the body. 4. The circuit breaker according to claim 1 or 2, wherein the display line is provided on a sticker attached to the front surface of the body. 5. The circuit breaker according to claim 4, wherein the display line is different in color from the body. 6. A box main body having a front opening, a lid attached to the front of the box main body, a main breaker housed inside the box main body, and a conductive bar connected to a load side terminal of the main breaker. 6. A plurality of branch breakers, which are arranged in parallel in the extension direction and whose power supply side terminals are electrically connected to the main breaker via conductive bars, each branch breaker according to any one of claims 1 to 5. Circuit breaker is used, and a display hole is formed in the lid body so that the display line can be visually recognized when the conductive bar is inserted in the blade receiver of the circuit breaker and the connection is completed. Distribution board characterized by. 7. The cover body is formed with a window hole that allows the handle of the branch breaker to be operated from the front side, and the display hole is formed separately from the window hole. The distribution board according to claim 6. 8. The cover body is formed with a window hole through which the handle of the branch breaker can be operated from the front side, and the display hole is formed so as to communicate with the window hole. The distribution board according to claim 6.