CN106206178B - Dc circuit breaker - Google Patents
Dc circuit breaker Download PDFInfo
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- CN106206178B CN106206178B CN201510301161.9A CN201510301161A CN106206178B CN 106206178 B CN106206178 B CN 106206178B CN 201510301161 A CN201510301161 A CN 201510301161A CN 106206178 B CN106206178 B CN 106206178B
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- circuit
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- pair
- abnormal current
- side terminal
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- 238000009413 insulation Methods 0.000 claims abstract description 31
- 230000002159 abnormal effect Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention provides a kind of circuit-breaker of four terminal structure of the two poles of the earth, even if for being equipped with the structure there are two contact for each pole, it also can be to being insulated well between the two poles of the earth.The movable contactor of the circuit-breaker has support shaft at its center, movable contact is set to carry out contacting/separating action with fixed contact by rotating, to the connection/disconnection of implementing circuit, on the other hand, cutting mechanism portion includes abnormal current test section, it detects the abnormal current flowed through in circuit, and open-close mechanism section, its operation by the detection operation of abnormal current test section plus operation handle is communicated to movable contactor, a pair of of circuit is provided in a pair of of circuit respectively and is arranged in space, it is to be crossed over from power supply side terminal to load side terminal that space, which is arranged, in a pair of circuit, the insulation wall formed in cabinet separates to be formed, operation handle and open-close mechanism section are configured in the space for the side that a pair of of circuit is arranged in space.
Description
Technical field
The present invention relates to a kind of dc circuit breakers more particularly to a kind of each pole to be equipped with four contact of the two poles of the earth there are two contact
The dc circuit breaker of structure.
Background technique
As the no current zero as alternating current of DC current, compare is more difficult to cut for alternating current
It is disconnected.Therefore, it is proposed to such breaker motion: configuring in series multiple for being opened and closed the contact of circuit, such as configuration two
Contact, compared with an only contact, it is twice that making, which makes separating rate also while twice of separating distance, even if without electric current
Zero point can also be cut off well movement.For example, in patent document 1, using the circuit breaker of four structure of contact terminal of quadrupole
Device will simultaneously be connected in series between terminal, form the circuit-breaker of four contact of the two poles of the earth.
In addition, being equipped with the circuit-breaker there are two contact as each pole, there are structures disclosed Patent Document 2.
In patent document 2, the composition of circuit-breaker are as follows: fixed contact at two is set on a circuit, while both ends being equipped with
Have movable contact movable contactor configure between two fixed contacts, and make movable contactor center rotation come simultaneously into
Contact/separation of row both sides' contact.
Patent document 1: Japanese Unexamined Patent Publication 2012-138173 bulletin (Fig. 7)
Patent document 2: Japanese Unexamined Patent Publication 1-166429 bulletin
Summary of the invention
But since circuit-breaker itself is large-scale plant, use the circuit-breaker of above-mentioned four terminal structure of quadrupole
Biggish installation space is needed to form the embodiment of the circuit-breaker of four terminal of the two poles of the earth.
Moreover, when by circuit-breaker of the structure of contact terminal in patent document 2 suitable for the two poles of the earth, due to that can connect
Two contacts are configured, therefore circuit-breaker can be made to minimize, but need to flow two circuit setting detections in circuit
The abnormal current crossed simultaneously by two circuits while the tripping mechanism of cutting and being opened circuit by the operation of operation handle
The open-close mechanism section operated is closed, therefore, carrys out formation mechanism across left and right circuit, it is difficult to it insulate between circuit, and
It is difficult to shielded arc.
Then, the present invention is in view of such problems point, and it is an object of the present invention to provide a kind of circuit breaker of four terminal structure of the two poles of the earth
Device, even if for being equipped with the structure there are two contact for each pole, it also can be to being insulated well between the two poles of the earth.
To solve the above-mentioned problems, the invention in first embodiment is characterized in that: in four structure of contact terminal of the two poles of the earth
In dc circuit breaker, it is configured with a pair of of power supply side terminal at the rear portion of cabinet respectively, is configured with a pair of of load side terminal in front,
And cross over from power supply side terminal to load side terminal and be equipped with a pair of of circuit, the circuit be respectively provided with two fixed contacts and
Movable contactor, which, which is erected between two fixed contacts and constitutes a part of circuit, carrys out implementing circuit
Connection/disconnection is further equipped with: operation handle, operates to movable contactor and cutting mechanism portion, detection exist
The abnormal current that flows through in circuit simultaneously makes movable contactor carry out rupturing operation, wherein place has movable contactor at its center
Rotating fulcrum carries out the movable contact that its both ends is arranged in the fixed contact being arranged on fixed contact
Contact/separating action, thus the connection/disconnection of implementing circuit；On the other hand, cutting mechanism portion includes abnormal current test section,
It is detected to the abnormal current flowed through in circuit and open-close mechanism section, and the detection of abnormal current test section is moved
Make to be communicated to movable contactor plus the operation of operation handle；A pair of of circuit is provided in a pair of of circuit respectively and is arranged in space,
A pair of circuit be arranged space be by from power supply side terminal cross over formed to load side terminal, in cabinet insulation wall separation Lai
It is formed；Operation handle and open-close mechanism section are configured in the space for the side that a pair of of circuit is arranged in space.
According to this configuration, even if two fixed contacts and two movable contacts are carried out group to be equipped on a circuit
The structure of conjunction, i.e., each pole are equipped with the structure there are two contact, due to configuring operation handle and open-close mechanism section a side's
Circuit is arranged in space, therefore connection, imperforation portion insulation wall can also be arranged on the circuit of both sides, can be to both sides
Circuit insulated well.
Invention in second embodiment is characterized in that: in the structure documented by first embodiment, abnormal current
Test section is arranged on the circuit of both sides, and the detection operation of the abnormal current test section is communicated to open-close mechanism section simultaneously
The reception and registration component for making it carry out cutoff action includes the engaging arm pieces engaged with the abnormal current test section of both sides, to opening/closing machine
The main part that structure portion carries out the operating sheet of opening operation and is erected between engaging arm pieces and operating sheet；The main part is equipped
It is formed by space in insulation wall.
According to this configuration, it due to conveying component to be provided in insulation wall, does not need for the circuit of a side to be arranged empty
Between become smaller, or on insulation wall setting for is arranged reception and registration component opening portion, it will be able to it is good between holding circuit
Insulation.
Invention in third embodiment is characterized in that: being tied documented by first embodiment or second embodiment
In structure, the section that the space in insulation wall is formed is in slit-shaped, meanwhile, convey the main part of component to be formed as plate；Insulation wall
With the opening portion for protruding engaging arm pieces to the left and right, on the other hand, main part has to occlude opening portion, to engaging arm pieces
Around stretch out and the occlusive part that is formed.
According to this configuration, even if being formed through the opening portion of the engaging arm pieces for conveying component protrusion on insulation wall,
Since the occlusive part being formed on main part has occluded the gap around engaging arm pieces, it is able to maintain that left and right circuit is arranged
The insulation in space.
According to the present invention, two fixed contacts and two movable contacts are subjected to group even being equipped on a circuit
The structure of conjunction, i.e., each pole are equipped with the structure there are two contact, due to configuring operation handle and open-close mechanism section a side's
Circuit is arranged in space, therefore the insulation wall in imperforation portion can also be arranged between the circuit of both sides, can be to the electricity of both sides
It is insulated well on road.
Detailed description of the invention
Fig. 1 shows an example of dc circuit breaker according to the present invention, Fig. 1 (a) is its plan view, and Fig. 1 (b) is it
Side view.
Fig. 2 is the sectional view at line A-A shown in FIG. 1.
Fig. 3 is the plan view for unloading the dc circuit breaker after capping.
Fig. 4 indicates reception and registration component, and Fig. 4 (a) is its perspective view, and Fig. 4 (b) is its plan view, and Fig. 4 (c) is its side view.
Fig. 5 is the sectional view at line B-B shown in FIG. 1.
Fig. 6 is the sectional view at the line A-A after the breaker component parts removed in addition to conveying component.
Fig. 7 is the explanatory diagram after extracting contact.
The explanation of appended drawing reference
1: power supply side terminal；2: load side terminal；3: operation handle；4: cabinet；10: open-close mechanism section；11: abnormal current
Test section；12: conveying component；12a: engaging arm pieces；12b: operating sheet；12c: main part；13: movable contactor；15: the first is solid
Determine contactor；16: the second fixed contacts；20: support shaft (rotating fulcrum)；23: insulation wall；23c: the second opening portion (opening
Portion)；C: space is arranged in circuit；L: circuit；W: occlusive part.
Specific embodiment
Hereinafter, embodiment of specific embodiments of the invention is described in detail referring to attached drawing.Fig. 1 shows institutes of the present invention
One example of the dc circuit breaker being related to, Fig. 1 (a) are its plan views, and Fig. 1 (b) is its side view.1 is power supply side terminal, 2
It is load side terminal, 3 be the operation handle for circuit being opened and closed operation, the terminal of this two side is all made of two terminals,
By covering the inside for the cabinet 4 that 4a and base station 4b is constituted, it is equipped from power supply side terminal 1 and crosses over to the one of load side terminal 2
To circuit.
Power supply side terminal 1 and load side terminal 2 are configured in the opposite end of cabinet 4, hereinafter, with power supply side terminal
1 configuration section is that rear portion is said using the configuration section of operation handle 3 as top using the configuration section of load side terminal 2 as front
It is bright.
Fig. 2 indicates the sectional view at line A-A, and indicates the structure of the circuit of a side.In Fig. 2,10 be response manipulator
The operation of handle 3 and the open-close mechanism section of the connection/disconnection of implementing circuit, 11 abnormal current to be detected to abnormal current are examined
Survey portion, 12 be the reception and registration component that the detection operation of abnormal current test section is communicated to open-close mechanism section 10, and 13 be to pass through rotation
To carry out contact/separation movable contactor of the contact on circuit.
In addition, constituting response abnormality electric current by open-close mechanism section 10, abnormal current test section 11 and reception and registration component 12
Generation and cut off the cutting mechanism portion of circuit.In addition, L indication circuit, circuit L is adapted to cross over from power supply side terminal 1
To load side terminal 2.
Circuit L has: two fixed contacts (the first fixed contact 15, the second fixed contact 16) and mobile contact
Device 13, wherein fixed contact on its top equipped with fixed contact (the first fixed contact 15a, the second fixed contact 16a),
Movable contactor 13 is erected between two fixed contacts 15,16 and in its back-end and on the both sides of front end equipped with movable
Contact 13a, 13b.Moreover, being assembled with the double gold for constituting abnormal current test section 11 near the load side terminal 2 of circuit L
Belong to piece 17, calutron 18 etc..
Herein, movable contactor 13 and fixed contact 15,16 are specifically explained.First fixed contact 15
Rear end is connect with power supply side terminal 1, and front is configured in the bottom of cabinet 4, and is provided with the upward in its top end
One fixed contact 15a.On the other hand, the second fixed contact 16 is configured in the middle position of cabinet 4, front and double gold
Belong to piece 17 to connect, and locates to be provided with the second fixed contact 16a facing downward in its back-end.In addition, another party of adjacent arranging
Circuit L is similarly formed.
The composition of movable contactor 13 is as shown in Figure 7.Fig. 7 is by the explanation of the state after the connection of left and right movable contactor
Figure, as shown in fig. 7, the corresponding two circuit L of movable contactor 13 are configured in a pair in left and right, and both sides are connected by support shaft 20
Knot.Moreover, being configured with the first movable contact 13a facing downward in its back-end, it is configured with the second movable contact upward in its front end
13b。
It is integrally rotated centered on this support shaft 20, the first movable contact 13a is carried out relative to the first fixed contact 15a
Contact/separation, the second movable contact 13b contact/separate relative to the second fixed contact 16a, constitute so-called the two poles of the earth four
Structure of contact terminal.
In addition, movable contactor 13 is maintained in the shell 21 linked with open-close mechanism section 10, open-close mechanism section 10
On-off action is communicated to movable contactor 13 by shell 21.
Fig. 3 indicates to unload the plan view of the dc circuit breaker after the capping 4a in Fig. 1.As shown in Fig. 3 (and Fig. 1), operation
Handle 3 is configured on the circuit L of a side, as shown in Fig. 2, open-close mechanism section 10 is configured in the lower part of this operation handle 3.
That is, open-close mechanism section 10 is also deployed on the circuit L of a side.
On the other hand, abnormal current test section 11 is arranged on the circuit L of both sides, and be configured as detect it is different
After normal electric current, component 12 is conveyed in pressing forwards.
Fig. 4 indicates reception and registration component 12, and Fig. 4 (a) is its perspective view, and Fig. 4 (b) is its plan view, and Fig. 4 (c) is its side view.
Component 12 is conveyed to include the engaging arm pieces 12a for extending to the left and right and engaging with abnormal current test section 11, make open-close mechanism section 10
Carry out opening action, the i.e. main body of the rodlike operating sheet 12b of cutoff action and connection engaging arm pieces 12a and operating sheet 12b
Portion 12c.The plate that main part 12c is formed longitudinal direction and front-rear direction is roomy, left and right directions is thin.
This main part 12c have to engaging arm pieces 12a around stretch the occlusive part W to be formed, prevent it is aftermentioned absolutely
Gap is generated at second opening portion 23c of edge wall 23.In addition, operating sheet 12b only protrudes setting configured with open-close mechanism section 10
A side circuit L direction on.
Fig. 5 indicates to remove the section at the line B-B of the cabinet 4 after breaker component parts.As shown in figure 5, in cabinet 4
Internal centre setting is provided with insulation wall 23, crosses over the inside of cabinet 4 in the longitudinal direction and separates its left and right, is formed
Space C (C1, C2) is arranged in independent two circuits.Circuit L is provided in its respective circuit and is arranged in space C1, C2.Separately
Outside, the sectional view at the line A-A in above-mentioned Fig. 2 indicates that space C1 is arranged in the circuit in left side as shown in Figure 5.
Moreover, it is in the space of slit-shaped that 23a, which is the section formed in insulation wall 23, the main part 12c of component 12 is conveyed
It can slidably be received forwards, backwards in the 23a of this space.
Fig. 6 indicates to remove the section at the line A-A of the cabinet 4 after breaker component parts, and indicates the shape of insulation wall 23
State.But conveying component 12 is indicated with the state after installing.In Fig. 6,1a is power supply side terminal configuration section, and 2a is
Load side terminal configuration section, what insulation wall 23 was formed from power supply side terminal 1 to load side terminal 2 across the entirety of cabinet 4.
Moreover, 23b is first be formed through on insulation wall 23 to insert the support shaft 20 of movable contactor 13
Opening portion, 23c be in order to protrude the engaging arm pieces 12a for conveying component 12 to the left and right and be formed through on insulation wall 23 the
Two opening portions form two holes of perforation left and right on insulation wall 23.Moreover, 23d is the operation for making to convey component 12
The handle hole that space C1 protrudes is arranged to the circuit of a side by piece 12b, this handle hole 23d is made only in the table of a side of insulation wall 23
On face.
For two holes formed in this way, when assembling movable contactor 13, support shaft 20 is inserted through to occlude first and open
Oral area 23b.Moreover, as shown in fig. 6, the occlusive part W for the reception and registration component 12 that the second opening portion 23c is configured in insulation wall 23 comes
Occlusion, the first opening portion 23b and the second opening portion 23c are all occluded by assembling breaker component parts.
In this way, even if for be equipped on a circuit L by two fixed contacts 15a, 16a and two movable contact 13a,
The structure that 13b is combined, i.e. each pole are equipped with the structure there are two contact, due to by open-close mechanism section 10 and operation handle 3
The circuit configured in a side is arranged in the C of space, therefore can also be arranged on the circuit L of both sides connection, imperforation portion exhausted
Edge wall 23, can the circuit L to both sides insulated well.
Moreover, because component 12 is conveyed to be provided in insulation wall 23, therefore do not need the circuit of side space C is arranged
Become smaller, or setting is used to that the opening portion for conveying component 12 to be arranged on insulation wall 23, it will be able to realize good between circuit
Insulation.
Further, even if being formed through the opening portion 23c of the engaging arm pieces 12a for conveying component 12 protrusion in insulation wall
On 23, since the occlusive part W being formed on main part 12c has occluded the gap around engaging arm pieces 12a, it is able to maintain that
The insulation of space L is arranged in the circuit of left and right.
In addition, though above embodiment is that abnormal current test section 11 will convey component 12 to be pressed forwards to make to be opened and closed
Mechanism part 10 carries out the structure of cutoff action, but can also will convey component 12 round about, i.e. rear pressing is to carry out
Cutoff action.
Claims (2)
1. a kind of dc circuit breaker, which is characterized in that
In the dc circuit breaker of four structure of contact terminal of the two poles of the earth, it is configured with a pair of of power supply side terminal at the rear portion of cabinet respectively, preceding
Portion is configured with a pair of of load side terminal, and crosses over from the power supply side terminal to the load side terminal and be equipped with a pair of of electricity
Road, the circuit are respectively provided with movable contactor and two fixed contacts, and the movable contactor is erected at two fixations and connects
Between tentaculum and a part of the circuit is constituted to implement the connection/disconnection of the circuit, is further equipped with: operation handle,
It is operated to the movable contactor and cutting mechanism portion, detects the abnormal current flowed through in the circuit simultaneously
The movable contactor is set to carry out rupturing operation, wherein
The movable contactor locates have rotating fulcrum at its center, make to be arranged in by rotating the movable contact at its both ends with
The fixed contact being arranged on the fixed contact carries out contacting/separating action, thus the connection/disconnection of implementing circuit；
The cutting mechanism portion includes abnormal current test section, detects to the abnormal current flowed through in the circuit,
And open-close mechanism section, the operation by the detection operation of the abnormal current test section plus the operation handle are communicated to institute
State movable contactor；
The pair of circuit is provided in a pair of of circuit respectively and is arranged in space, and it is by from described that space, which is arranged, in the pair of circuit
Power supply side terminal, which is crossed over to the load side terminal, the insulation wall formed in the cabinet, to be separated to be formed；
The operation handle and the open-close mechanism section are configured in the space for the side that the pair of circuit is arranged in space
It is interior；
The abnormal current test section is arranged on the circuit of both sides, and the detection operation of the abnormal current test section is passed
Up to the open-close mechanism section and making it carry out the reception and registration component of cutoff action to include the abnormal current test section with both sides
The engaging arm pieces of engaging carries out the operating sheet of opening operation to the open-close mechanism section and is erected at the engaging arm pieces and institute
State the main part between operating sheet；
The main part is provided in the insulation wall and is formed by space.
2. dc circuit breaker according to claim 1, which is characterized in that
The section that space in the insulation wall is formed is in slit-shaped, meanwhile, the main part for conveying component is formed as plate；
The insulation wall has the opening portion for protruding the engaging arm pieces to the left and right, and the main part has described in order to occlude
Opening portion, to the occlusive part for engaging and stretching out and being formed around arm pieces.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-166040 | 2014-08-18 | ||
| JP2014166040A JP6412368B2 (en) | 2014-08-18 | 2014-08-18 | DC circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106206178A CN106206178A (en) | 2016-12-07 |
| CN106206178B true CN106206178B (en) | 2019-02-22 |
Family
ID=55592095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510301161.9A Active CN106206178B (en) | 2014-08-18 | 2015-06-04 | Dc circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6412368B2 (en) |
| CN (1) | CN106206178B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07240142A (en) * | 1994-02-28 | 1995-09-12 | Matsushita Electric Works Ltd | Circuit breaker |
| CN102290296A (en) * | 2010-06-21 | 2011-12-21 | 宏达电器集团有限公司 | Inter-electrode linkage mechanism of breaker |
| JP2012138173A (en) * | 2010-12-24 | 2012-07-19 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
| CN103201817A (en) * | 2010-12-16 | 2013-07-10 | 三菱电机株式会社 | Circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2502223B2 (en) * | 1990-09-25 | 1996-05-29 | 松下電工株式会社 | Branch type circuit breaker |
| US5200725A (en) * | 1991-01-22 | 1993-04-06 | General Electric Company | Molded case circuit breaker multi-pole crossbar assembly |
| US6114641A (en) * | 1998-05-29 | 2000-09-05 | General Electric Company | Rotary contact assembly for high ampere-rated circuit breakers |
| WO2013171903A1 (en) * | 2012-05-18 | 2013-11-21 | 三菱電機株式会社 | Circuit breaker for direct-current circuit and circuit breaker device for direct-current circuit |
-
2014
- 2014-08-18 JP JP2014166040A patent/JP6412368B2/en active Active
-
2015
- 2015-06-04 CN CN201510301161.9A patent/CN106206178B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07240142A (en) * | 1994-02-28 | 1995-09-12 | Matsushita Electric Works Ltd | Circuit breaker |
| CN102290296A (en) * | 2010-06-21 | 2011-12-21 | 宏达电器集团有限公司 | Inter-electrode linkage mechanism of breaker |
| CN103201817A (en) * | 2010-12-16 | 2013-07-10 | 三菱电机株式会社 | Circuit breaker |
| JP2012138173A (en) * | 2010-12-24 | 2012-07-19 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016042430A (en) | 2016-03-31 |
| CN106206178A (en) | 2016-12-07 |
| JP6412368B2 (en) | 2018-10-24 |
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