JP2502223B2 - Branch type circuit breaker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch type circuit breaker.

[0002]

2. Description of the Related Art When a plurality of loads are connected to a power source through a circuit breaker and it is desired to remotely control each load individually, a plurality of electromagnetic contactors are provided at external connection terminals on the load side of the circuit breaker. It is conceivable to connect a load to the external connection terminal on the load side of each electromagnetic contactor.

When remotely controlling a plurality of loads, a plurality of loads may be connected to one electromagnetic contactor through a plurality of circuit breakers. Furthermore, in this case, another power supply may be able to supply power to each load simultaneously via an electromagnetic contactor.

[0004]

However, in each of these cases, there is a drawback that the installation space increases and the wiring work increases. Therefore, an object of the present invention is to provide a branch type circuit breaker capable of reducing the installation space and simplifying the wiring work.

[0005]

A branch type circuit breaker according to claim 1 is a fixed contact plate having one fixed breaker contact and a plurality of remote fixed contacts, and one movable breaker contact facing the fixed breaker contact. A circuit breaker mechanism section having: a first external connection terminal electrically connected to the breaker movable contact; and a plurality of remote movable contacts facing the plurality of remote fixed contacts, respectively. A plurality of signal drive mechanism parts for opening and closing the remote movable contact and a plurality of second external connection terminals electrically connected to the plurality of remote movable contacts are provided.

According to a second aspect of the present invention, there is provided a branch type circuit breaker having a fixed contact plate having a plurality of breaker fixed contacts and one remote fixed contact, and a plurality of breaker movable contacts respectively facing the plurality of breaker fixed contacts. Of the circuit breaker mechanism section, a plurality of first external connection terminals electrically connected to the plurality of breaker movable contacts, and one remote movable contact facing the remote fixed contact A signal drive mechanism section that opens and closes, and a second external connection terminal that is electrically connected to the remote movable contact are provided.

According to a third aspect of the present invention, there is provided a branch type circuit breaker having a fixed contact plate having a plurality of breaker fixed contacts and a plurality of remote fixed contacts, and a plurality of breaker movable contacts respectively facing the plurality of breaker fixed contacts. Circuit breaker mechanism section, a plurality of first external connection terminals electrically connected to the plurality of breaker movable contacts, and a plurality of remote movable contacts that face the plurality of remote fixed contacts, respectively. A plurality of signal drive mechanism sections that are opened and closed by signals, and a plurality of second external connection terminals that are electrically connected to the plurality of remote movable contacts, respectively.

According to a fourth aspect of the present invention, there is provided a branch type circuit breaker according to any one of the first, second or third aspects, wherein the fixed contact plate is disposed between the circuit breaker mechanism section and the signal drive mechanism section. The breaker fixed contact is provided on the surface of the fixed contact plate on the side of the circuit breaker mechanism, and the remote fixed contact is provided on the surface of the fixed contact plate on the side of the signal drive mechanism opposite to the surface. It is a thing.

[0009]

According to the branch type circuit breaker of claim 1, a plurality of loads can be individually opened and closed by transmitting a signal to each signal drive mechanism section, and a plurality of loads can be operated by operating the circuit breaker mechanism section. The load of can be opened and closed at the same time. In this case, since the fixed contact plate is shared, the circuit breaker mechanism portion and the signal drive mechanism portion can be integrated, and the installation space can be reduced. Further, since wiring between the circuit breaker mechanism portion and the signal drive mechanism portion can be omitted, wiring work is simplified.

According to the branch type circuit breaker of the second aspect, it is possible to individually open and close a plurality of loads by operating a plurality of circuit breaker mechanism parts, and by transmitting a signal to the signal drive mechanism part. A plurality of loads can be opened and closed at the same time, and there is the same effect as in claim 1. According to the branch type circuit breaker of claim 3, the circuit breaker mechanism portion and the signal drive mechanism portion can individually and simultaneously open and close a plurality of loads, and can supply another power source to the plurality of loads. In addition to the above, there is the same effect as in claim 1.

According to the branch type circuit breaker of claim 4, according to claim 1, claim 2 or claim 3, the fixed contact plate is provided between the circuit breaker mechanism part and the signal drive mechanism part. The breaker fixed contact is provided on the surface of the fixed contact plate on the side of the circuit breaker mechanism, and the remote fixed contact is on the surface of the fixed contact plate on the side opposite to the signal drive mechanism. Since it is provided, it is possible to reduce the size as a whole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this branch type circuit breaker includes a fixed contact plate 1, a circuit breaker mechanism unit 2, a plurality of signal drive mechanism units 3, a first external connection terminal 19, and a plurality of second external connection terminals. 56 and.

The fixed contact plate 1 has one breaker fixed contact 4
And a plurality of remote fixed contacts 5. The circuit breaker mechanism portion 2 has one breaker movable contact 6 facing the breaker fixed contact 4. The plurality of signal drive mechanism units 3 respectively have a plurality of remote movable contacts 7 that face the plurality of remote fixed contacts 5, and open and close the remote movable contacts 7 by a signal. The first external connection terminal 19 is electrically connected to the breaker movable contact 6. A plurality of second external connection terminals 5
6 is electrically connected to each of the plurality of remote movable contacts 7.

The embodiments will be described in detail below. As shown in FIG. 4, the fixed contact plate 1 has a rectangular plate as an embodiment, a breaker fixed contact 4 is provided on one surface of one end thereof, and a pair of remote fixed contacts 5 are provided in parallel on the opposite surface thereof. Further, the arc traveling piece 8 extends from the side of the breaker fixed contact 4 of the fixed contact plate 1. The fixed contact plate 1 is penetrated through the through hole 10 in the side wall of the case 9 to support the intermediate portion, and has one end locked in a locking groove (not shown) formed in the cover 63 that closes the opening of the case 9. And the other end is case 9
The case 9'provided with a cover 63 'provided side by side is penetrated and locked in a locking groove 10' formed in the side wall thereof.

As shown in FIG. 5, the circuit breaker mechanism portion 2 has a movable contact 11 holding a breaker movable contact 6, a bimetal 13 for detecting an overcurrent for detecting an abnormality in an electric path, and an electromagnet 14 for detecting a short circuit. Abnormal current detection means 12 consisting of
And a trip link 15 that responds to the abnormal current detection means 12, and a latch link 16 that is latched by the trip link 15 and released by the operation of the trip link 15.
And the movable contactor 11 supported by the latch link 16,
A handle 17 for opening and closing the movable contact 11 in a latched state of the latch link 16 is provided.

That is, the circuit breaker mechanism portion 2 is incorporated in the frame 18 provided only in the case 9 forming the outer shell. A first external connection terminal 19 on the power supply side, for example, is provided at an end portion of the case 9 near the abnormal current detection means 12, and the first external connection terminal 19 and the electromagnet 14 are provided.
Coil 14a, flexible lead wire 20, bimetal 13,
It is connected to the breaker movable contact 6 through the path of the frame 18, the flexible lead wire 21, and the movable contact 11. The bimetal 13 and the electromagnet 14 have known structures.

Further, the trip link 15 is attached to the fixed shaft 22 of the case 9 via a return spring 23, abuts on the movable portion of the electromagnet 14 and is positioned, and has a latch portion 24. The latch link 16 is rotatably supported by the handle shaft 25 fixed to the case 9, and the trip link 1
The slit 28 that has the engaging portion 26 that is latched by the latch portion 24 of No. 5 and that slidably supports the movable shaft 27.
Have. The movable contactor 11 has a bearing hole 67 in the middle portion axially supported by the fixed shaft 29, and the opening spring 30 is interposed in the fixed shaft 29. In addition, the breaker movable contact 6 of the movable contactor 11
The connecting link 31 is connected between the shaft 32 and the movable shaft 27, which are provided at the opposite end. On the other hand, the handle 17 is pivotally supported by the handle shaft 15 so that a part thereof projects from the handle hole 70 of the case 9, and the reversing link 34 is connected between the shaft 33 provided on the handle 17 and the movable shaft 27. Further, the handle 17 is biased in the off direction by the return spring 35. Reference numeral 36 is an arc extinguishing device, 36a is an upper arc traveling plate integrated with the frame 18, and 36b is a lower arc traveling plate whose middle portion is close to the arc traveling piece 8. 7
3 is a sealing plate for closing the adjusting hole 74 of the adjusting screw 13a of the bimetal 13 of the case 9, and 75 is an arc gas recirculation side plate.

The circuit breaker mechanism portion 2 is in an ON state in FIG. 5, an OFF state in FIG. 6, and a trip state in the case of a short circuit in FIG. When the handle 17 is rotated clockwise from the state of FIG. 5 to the state of FIG. 6 with the latch link 16 latched by the trip link 15, the shaft 33 exceeds the line connecting the handle shaft 25 and the movable shaft 27. The movable shaft 27 slides in the slit 28 by the force of the opening spring 30, and the handle 17 is urged in the clockwise direction to be positioned in the state shown in FIG. Opening operation centered around. On the other hand, when the handle 17 is turned in the opposite direction, that is, counterclockwise, it is turned on contrary to the above, and the shaft 33
Exceeds the line connecting the handle shaft 25 and the movable shaft 27 in the opposite direction, the direction in which the spring force of the opening spring 30 is applied is reversed and the handle 17 is positioned at the position shown in FIG.
The movable contactor 11 has a bearing hole 67 for receiving the fixed shaft 29.
Is a long hole, and contact pressure is applied to the circuit breaker fixed contact 4 by the spring force of the opening spring 30 in the ON state.

When an abnormal current such as a short-circuit current flows in the electric circuit in the ON state, the electromagnet 14 operates and the trip link 15 rotates around the fixed shaft 20 against the spring force of the return spring 23. The latch portion 24 is disengaged from the engaging portion 26 of the latch link 16. Then, the spring force of the opening spring 30 causes the latch link 16 to rotate counterclockwise around the handle shaft 25 via the connecting link 31 and the movable shaft 27, while the movable shaft 27 slides in the slit 28. The movable contact 11 is tripped and opened as shown in FIG. 7, and the handle 17 is released from the regulation due to the loss of the spring force of the opening spring 30 applied to the shaft 33, and is neutralized by the spring force of the return spring 35. Rotate to position.

When an arc is generated between the breaker movable contact 6 and the breaker fixed contact 4 when the breaker movable contact 6 is tripped open, the fixed contact plate 1 side of the arc is fixed contact plate 1.
The arc traveling piece 8 and the arc traveling plate 36b on the lower side travel, and the breaker movable contact 6 side of the arc travels on the arc traveling plate 36a on the upper side to be attracted to the arc extinguishing grid 36 and extinguished.

When an overcurrent flows in the electric circuit, the bimetal 13 bends and the trip link 15 is pushed and rotated by the adjusting screw 13a, and the trip operation is performed. To reset the circuit breaker mechanism section 2 that has trip opened, the handlebar 17 in the neutral position is tilted to the off side from the state of FIGS. 7 to 6 to pull the movable shaft 27 toward the end of the slit 28 and rotate the latch link 16. The engaging portion 26 is engaged with the latch portion 24 by moving.

The signal drive mechanism section 3 is mounted on the cases 9, 9 '. The signal drive mechanism section 3 of the case 9 has a movable contactor 4 holding a remote movable contact 7 as shown in FIG.
0 and a contactor holder 41 that holds the movable contactor 40.
And a bistable electromagnet 42 connected to the contact holder 41. As shown in FIG. 4, the movable contactor 40 has a fulcrum protrusion 40a and a lead wire connecting portion 40b in the middle. The contact holder 41 has a substantially L-shape, and the bent portion is axially supported by the fixed shaft 43, and the fulcrum protrusion 40a of the movable contact 40 is inserted into the hole of the holding portion 44 with a hole, and the intermediate portion is formed. The contact pressure imparting spring 45 is interposed between the contact holding member 41 and the opposite side of the movable contact 40 to the remote movable contact 7. Further, the other part of the contact holder 41 and one end of the plunger 46 of the bistable electromagnet 42 are connected by a shaft 47. Reference numeral 48 is a bias spring, and 77 is a connecting tool. The bistable electromagnet 42 has a known structure and includes a coil 50 wound around a coil frame 49, inner yokes 51 arranged on both sides of the coil 50, and a permanent magnet 52 provided outside the inner yoke 51. An outer yoke 53 provided outside the permanent magnet 52, and a plunger 46 having an armature 54 located between the outer yoke 53 and the inner yoke 51 at both ends and penetrating the coil frame 49. The plungers 46 are held by the permanent magnets 52 at positions at both ends in the moving direction, and by energizing and exciting the coil 50 in a certain direction, the plungers 46 can be moved to positions on the opposite side. The movement of the plunger 46 causes the contact holder 41 to move to the fixed shaft 4
3, the movable contactor 40 is opened and closed. The remote movable contact 7 comes into contact with the remote fixed contact 5 at the position of one end in the moving direction of the plunger 46 as shown in FIGS. 5 to 7, and at the position of the other end as shown in FIG. 7 is in an off state separated from the remote fixed contact 5. Further, the movable contactor 40 supported by the contactor holder 44 in the ON state is rotated around the fulcrum protrusion 40a, and contact pressure is applied by the contact pressure applying spring 45.

Reference numeral 56 denotes the first external connection terminal 19 of the case 9.
The second external connection terminal on the opposite side to the load side, 57 is a flexible lead wire for connecting the second external connection terminal 56 and the lead wire contact portion 40b of the movable contactor 40 (FIG. 1, FIG. (See FIG. 4), and the middle portion thereof is also connected to the end portion of the lower arc traveling plate 36b. As a result, the breaker movable contact 6 has the breaker fixed contact 4, the fixed contact plate 1, the remote fixed contact 5, the remote movable contact 7, and the movable contactor 4.
0, the second external connection terminal 56 via the flexible lead wire 57
Electrically connected to the first external connection terminal 1
9 and the second external connection terminal 56 are opened / closed by the opening / closing operation of the breaker movable contact 6 and the remote movable contact 7. Reference numeral 59 is a coil lead wire, 76 is an electromagnet pressing spring, and 78 is a residual plate.

Reference numeral 59 is a coil lead wire, 60 is a display member for displaying the operating state of the signal driving mechanism 3, 61 is a fixed shaft thereof, 62 is a connecting shaft between the display member 60 and the contact holder, and 66 is a shaft. It is a peephole formed in the case 9. The other signal drive mechanism section 3 is attached to the case 9 '. The case 9'is provided on the side of the case 9 as shown in FIGS. 2 and 3, and is connected by caulking rivets 64 together with a cover 63 that closes the side opening of the case 9. 1 of fixed contact plate 1
One remote fixed contact 5 is located inside the case 9 ′, and the remote movable contact 7 of the case 9 ′ faces the remote fixed contact 5. The case 9'has neither the circuit breaker mechanism 2 nor the first external connection terminal 19.

In this branch type circuit breaker, a power supply line (not shown) is connected to the first external connection terminal 19 and a load line (not shown) is connected to the second external connection terminal 56.
When the handle 17 is turned on and off, all loads are turned on and off. In addition, the coil 50 of the signal drive mechanism unit 3
When a signal is sent to the bistable electromagnet 42
Is operated, the load connected to the second external connection terminal 56 is turned on or off. When a signal is transmitted to each of the signal drive mechanism units 3 to operate them, all loads are turned on or off. On the other hand, when an abnormal current such as an overcurrent or a short-circuit current flows through one of the loads, the circuit breaker mechanism unit 2 trips and the entire load is cut off.

According to this embodiment, a plurality of loads can be opened and closed individually by signals, and a plurality of loads can be opened and closed simultaneously by operating the circuit breaker mechanism section 2. In this case, since the fixed contact plate 1 is shared, the circuit breaker mechanism unit 2 and the signal drive mechanism unit 3 can be integrated, and the installation space can be reduced. Further, since wiring between the circuit breaker mechanism unit 2 and the plurality of signal drive mechanism units 3 can be omitted, wiring work is simplified.

The fixed contact plate 1 has a circuit breaker mechanism 2
And the signal drive mechanism section 3 and provided with a breaker fixed contact 4 on the surface of the fixed contact plate 1 on the circuit breaker mechanism section 2 side, and the signal drive mechanism on the opposite side of the fixed contact plate 1 from the surface. Since the remote fixed contact 5 is provided on the surface of the portion 3 side, the remote fixed contact 5 is easily assembled, and the entire size can be reduced. The contact pressure was unstable in the case where the breaker movable contact 6 and the remote movable contact 7 contacted each other, but the contact pressure was stable by providing the breaker fixed contact 4 and the remote fixed contact 5 with the fixed contact plate 1 interposed. To do.

Although the case 9'has a cover 63 'having the same structure as the cover 63, the side wall of the case 9 may also serve as the cover 63' and the cover may be omitted. The second embodiment of the present invention is shown in FIGS. That is, this branch type circuit breaker is the case where the signal drive mechanism section 3, the remote fixed contact 5 and the second external connection terminal 56 are three in the first embodiment. FIG. 9 shows the circuit configuration thereof.
Is an operation terminal for supplying a signal to the coil 50. Figure 10
Shows the appearance, and cases 9, 9 ', 9 "are arranged side by side and integrated. FIG. 11 shows the second external connection terminal 5 thereof.
6 is a front view, and the operation terminals 80 are arranged in parallel below the second external connection terminals 56, that is, on the mounting surface side.
12 shows a state in which the cases 9, 9 ', 9 "are disassembled, and a part of the fixed contact plate 1 extends from the case 9 having the circuit breaker mechanism portion 2. FIG. 13 shows the fixed contact plate. 1 has the appearance of FIG. 1 and has an arc traveling plate 36b ′ extending from the fixed contact plate 1 as compared with the first embodiment, and the breaker fixed contact 4 and the remote fixed contact 5 are vertically displaced and arranged on the opposite side. 14 shows the internal structure of the case 9, but is almost the same as the first embodiment except for the above-mentioned differences.FIG. 15 shows the case 9 '(case 9 "). The same applies to the case 9 except that the circuit breaker mechanism 2, the first external connection terminal 19 and the arc extinguishing device 36 are not provided.

This embodiment also has the same effects as the first embodiment. Since the number of remote fixed contacts 5 provided on the fixed contact plate 1 is not limited, it is possible to further increase the number of signal drive mechanism units 3. That is, as in the second embodiment, a case having the same structure as the case 9 ″ is provided side by side but with a stud, and the fixed contact plate 1 having the remote fixed contacts 5 of the number of signal drive mechanisms is provided to increase the number of units. Each signal drive mechanism section 3 that is possible and corresponds to the load
It is possible to cope with the difference in current capacity between the circuit breaker mechanism section 2 and

Further, the fixed contact plate 1 is provided with the breaker fixed contact 4 on one surface and the remote fixed contact 5 on the other surface, but they may be provided on the same surface. A third embodiment of the present invention is shown in FIGS. That is, this branch type circuit breaker has a plurality of breaker fixed contacts 4 and 1
A fixed contact plate 1 having one remote fixed contact 5, a plurality of circuit breaker mechanism portions 2 having a plurality of breaker movable contacts 6 facing the plurality of breaker fixed contacts 4, and a plurality of breaker movable contacts 6 are electrically connected to each other. The plurality of first external connection terminals 19 that are electrically connected to each other and the remote fixed contact 5
The signal drive mechanism section 3 which has one remote movable contact 7 facing each other and is opened / closed by a signal, and the second external connection terminal 56 electrically connected to the remote movable contact 7.

In this embodiment, when a main circuit breaker 81 and a branch circuit breaker 82 having the number of loads are installed as shown in FIG. 16 in a distribution board for controlling a plurality of loads, the main circuit breaker 81 is further added. When the electromagnetic contactor 83 which is opened / closed by a signal is provided between the branch circuit breaker 82 and the branch circuit breaker 82, it can be applied to the branch circuit breaker 82 and the electromagnetic contactor 83. FIG. 17
Is the circuit configuration of this embodiment, and FIG.
The fixed contact plate 1 exposed from the case 9 in a state where 9'and 9 "are disassembled is the same as that including, for example, the imaginary line in Fig. 13. However, the breaker fixed contact 4 is one and the remote movable contact is provided. There are a plurality of 5. The cross section of the case 9 is shown in FIG.
The same as 4. FIG. 19 shows a case 9 ′ (similar to the case 9 ″), which includes the signal drive mechanism section 3 and the second external connection terminal 56.
Also, the operation terminal 80 is not provided.

According to this embodiment, a plurality of loads can be individually opened and closed by operating the plurality of circuit breaker mechanism units 2, and a plurality of loads can be transmitted by transmitting a signal to the signal drive mechanism unit 3. Can be opened and closed at the same time. Others are the same as those in the first and second embodiments. The plurality of circuit breaker mechanism units 2 may be interlocked with the steering wheel or trip with a known interlocking device.

A fourth embodiment of the present invention is shown in FIGS. That is, this branch type circuit breaker includes a plurality of breaker fixed contacts 4 and a plurality of remote fixed contacts 5.
Fixed contact plate 1 having a plurality of breaker fixed contacts 4, a plurality of circuit breaker mechanism portions 2 having a plurality of breaker movable contacts 6 respectively facing the plurality of breaker fixed contacts 4, and a plurality of breaker movable contacts 6
A plurality of first external connection terminals 19 electrically connected to each other, and a plurality of remote movable contacts 7 facing the plurality of remote fixed contacts 5, respectively, and a plurality of signal drive mechanism parts which are opened and closed by signals. 3 and a plurality of second external connection terminals 56 electrically connected to the plurality of remote movable contacts 6, respectively.

FIG. 20 shows an example of a circuit installed on a distribution board. A plurality of loads A1 and A2 are connected to the first external connection terminals 19 of a plurality of circuit breaker mechanism units 2 to form a plurality of power supplies. E
The second external connection terminals 56 of the plurality of signal drive mechanism units 3 are connected to 1 and E2. FIG. 21 shows the internal circuit.
FIG. 22 shows a state in which the cases 9 and 9'are separated. The insides of the cases 9 and 9'are the same as those in FIG. 14, and the fixed contact plate 1 is exposed from the case 9 side.

According to this embodiment, the circuit breaker mechanism section 2
The loads A1 and A2 can be individually opened and closed by the operation of, and by transmitting a signal to the signal drive mechanism unit 3, a plurality of loads A1
1, A2 can be opened and closed at the same time, and a plurality of power sources E1, E2 can be switched by transmitting a signal to the signal drive mechanism section 3, so-called another power source can be used for a plurality of loads A.
It is possible to supply power to A1 and A2. Others are the same as those in the first and second embodiments.

[0036]

According to the branch type circuit breaker of claim 1,
A plurality of loads can be opened and closed individually by transmitting a signal to each signal drive mechanism unit, and a plurality of loads can be opened and closed simultaneously by operating the circuit breaker mechanism unit. In this case, since the fixed contact plate is common,
The circuit breaker mechanism section and the signal drive mechanism section can be integrated, and the installation space can be reduced.
Further, since the wiring between the circuit breaker mechanism section and the signal drive mechanism section can be omitted, there is an effect that the wiring work is simplified.

According to the branch type circuit breaker of the second aspect, it is possible to individually open and close a plurality of loads by operating a plurality of circuit breaker mechanism parts, and by transmitting a signal to the signal drive mechanism part. A plurality of loads can be opened and closed at the same time, and the same effect as claim 1 can be obtained. According to the branch type circuit breaker of claim 3, the circuit breaker mechanism portion and the signal drive mechanism portion can individually and simultaneously open and close a plurality of loads, and can supply another power source to the plurality of loads. Besides, the same effect as claim 1 is obtained.

According to the branch type circuit breaker of claim 4, in accordance with claim 1, claim 2 or claim 3, the fixed contact plate is provided between the circuit breaker mechanism part and the signal drive mechanism part. Since it is provided, the entire size can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a first embodiment of the present invention with a cover removed.

FIG. 2 is a plan view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is an exploded perspective view thereof.

FIG. 5 is a cross-sectional view of an ON state.

FIG. 6 is a sectional view of a circuit breaker mechanism portion in an off state.

FIG. 7 is a cross-sectional view of a trip state.

FIG. 8 is a cross-sectional view of an off state of the signal driving mechanism section.

FIG. 9 is an internal circuit diagram of the second embodiment.

FIG. 10 is an external perspective view.

FIG. 11 is a side view seen from the operation terminal side.

FIG. 12 is an exploded perspective view of each case.

FIG. 13 is a perspective view of a fixed contact plate.

FIG. 14 is a cross-sectional view of the case in the on state.

FIG. 15 is a cross-sectional view of a case without a circuit breaker mechanism portion.

FIG. 16 is a wiring diagram inside the panel to which the third embodiment is applied.

FIG. 17 is an internal circuit diagram.

FIG. 18 is an exploded perspective view of each case.

FIG. 19 is a cross-sectional view of a case without a signal driving mechanism section.

FIG. 20 is a wiring diagram inside the panel to which the fourth embodiment is applied.

FIG. 21 is an internal circuit diagram.

FIG. 22 is an exploded perspective view of each case.

[Explanation of symbols]

 1 fixed contact plate 2 circuit breaker mechanism part 3 signal drive mechanism part 4 breaker fixed contact 5 remote fixed contact 6 breaker movable contact 7 remote movable contact 19 first external connection terminal 56 second external connection terminal

Claims (4)

(57) [Claims] 1. A fixed contact plate having one breaker fixed contact and a plurality of remote fixed contacts, a circuit breaker mechanism section having one breaker movable contact facing the breaker fixed contact, and an electrical connection to the breaker movable contact. A first external connection terminal that is electrically connected, and a plurality of signal drive mechanism units that have a plurality of remote movable contacts that face the plurality of remote fixed contacts and that open and close the remote movable contacts according to signals, respectively. A branch circuit breaker comprising: a plurality of second external connection terminals electrically connected to the plurality of remote movable contacts. 2. A fixed contact plate having a plurality of breaker fixed contacts and one remote fixed contact, and a plurality of circuit breaker mechanism portions having a plurality of breaker movable contacts respectively facing the plurality of breaker fixed contacts, A plurality of first breaker movable contacts each electrically connected to the plurality of breaker movable contacts
1 facing the external connection terminal of the remote fixed contact
A branch type circuit breaker comprising: a signal drive mechanism section having two remote movable contacts for opening and closing by a signal; and a second external connection terminal electrically connected to the remote movable contacts. 3. A fixed contact plate having a plurality of breaker fixed contacts and a plurality of remote fixed contacts, and a plurality of circuit breaker mechanism units having a plurality of breaker movable contacts respectively facing the plurality of breaker fixed contacts, A plurality of first breaker movable contacts each electrically connected to the plurality of breaker movable contacts
External connection terminals, a plurality of remote driving contacts that face the plurality of remote fixed contacts, and a plurality of signal drive mechanism units that open and close according to signals, and are electrically connected to the plurality of remote moving contacts. Branch type circuit breaker having a plurality of second external connection terminals. 4. The fixed contact plate is disposed between the circuit breaker mechanism unit and the signal drive mechanism unit, and the breaker fixed contact is provided on a surface of the fixed contact plate on the circuit breaker mechanism unit side. The branch type circuit breaker according to claim 1, wherein the remote fixed contact is provided on a surface of the fixed contact plate on the side of the signal drive mechanism opposite to the surface of the fixed contact plate.