CN106206178A - Dc circuit breaker - Google Patents
Dc circuit breaker Download PDFInfo
- Publication number
- CN106206178A CN106206178A CN201510301161.9A CN201510301161A CN106206178A CN 106206178 A CN106206178 A CN 106206178A CN 201510301161 A CN201510301161 A CN 201510301161A CN 106206178 A CN106206178 A CN 106206178A
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- Prior art keywords
- circuit
- space
- side terminal
- abnormal current
- pair
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Abstract
The present invention provides the circuit-breaker of a kind of the two poles of the earth four terminal structure, even if it is for being each pole structure equipped with two contacts, it is also possible to insulate well between the two poles of the earth.The movable contactor of this circuit-breaker has support shaft at its center, movable contact is made to carry out contacting/separating action with fixed contact by rotation, thus the connection/disconnection of implementing circuit, on the other hand, shut-off mechanism portion has: abnormal current test section, the abnormal current flow through in circuit is detected by it, and open-close mechanism section, the detection action of abnormal current test section is conveyed to movable contactor plus the operation operating handle by it, a pair circuit is provided in a pair circuit respectively and arranges in space, this a pair circuit arranges space and is crossed over to load side terminal from power supply side terminal, the insulation wall separation formed in casing is formed, operation handle and open-close mechanism section are configured in a pair circuit and arrange in the space of the side in space.
Description
Technical field
The present invention relates to a kind of dc circuit breaker, particularly relate to a kind of each pole the two poles of the earth four structure of contact terminal equipped with two contacts
Dc circuit breaker.
Background technology
Owing to DC current does not has current zero as alternating current, therefore compare more hard-to-break for alternating current.Cause
This, it is proposed that such chopper motion: in series configure multiple contact for opening and closing circuit, such as two contacts of configuration,
Compared with only contact, making separating distance is to make while twice separating rate also for twice, even if not having current zero
It also is able to carry out well cut-out action.Such as, in patent documentation 1, use the circuit-breaker of quadrupole four structure of contact terminals
And be connected in series between terminal, define the circuit-breaker of the two poles of the earth four contact.
It addition, as each pole equipped with the circuit-breaker of two contacts, there is the structure disclosed in patent documentation 2.?
In patent documentation 2, the composition of circuit-breaker is: arranges fixed contact at two on a circuit, is equipped with at two ends simultaneously
The movable contactor having movable contact is arranged between two fixed contacts, and makes the central authorities of movable contactor rotate to enter simultaneously
Contact/the separation of row both sides' contact.
Patent documentation 1: Japanese Unexamined Patent Publication 2012-138173 publication (Fig. 7)
Patent documentation 2: Japanese Unexamined Patent Publication 1-166429 publication
Summary of the invention
But, owing to circuit-breaker is from as large-scale plant, use the circuit-breaker of above-mentioned quadrupole four terminal structures to carry out shape
The embodiment becoming the circuit-breaker of the two poles of the earth four terminal needs bigger installation space.
And, when by the structure of contact terminal in patent documentation 2 be applicable to the circuit-breaker at the two poles of the earth, join owing to connecting
Put two contacts, therefore, it is possible to make circuit-breaker miniaturization, however it is necessary that two circuit arrange detection to be flow through in circuit
Abnormal current and the tripping mechanism that two circuit are cut off simultaneously and by operation handle operation carry out the opening and closing to circuit
Carry out the open-close mechanism section operated, therefore, cross over left and right circuit and carry out formation mechanism, it is difficult to insulate between circuit, and
It is difficult to shielded arc.
Then, the present invention is in view of such problem points, it is therefore intended that provide the circuit-breaker of a kind of the two poles of the earth four terminal structure,
Even if it is for being each pole structure equipped with two contacts, it is also possible to insulate well between the two poles of the earth.
In order to solve the problems referred to above, the invention in the first embodiment is characterised by: at the direct current of this two poles of the earth four structure of contact terminal
In chopper, the rear portion at casing is configured with a pair power supply side terminal respectively, is configured with a pair load side terminal in front portion, and
And cross over to load side terminal from power supply side terminal and to be equipped with a pair circuit, this circuit is respectively provided with two fixed contacts and can
Dynamic catalyst, this movable contactor is erected between two fixed contacts and constitutes the part of circuit and comes the company of implementing circuit
Connecing/cut off, be further equipped with: operation handle, movable contactor is operated by it, and shut-off mechanism portion, its detection
The abnormal current that flows through in circuit also makes movable contactor carry out rupturing operation, and wherein, movable contactor locates tool at its center
There is rotating fulcrum, made by rotation the movable contact being arranged on its two ends enter with the fixed contact being arranged on fixed contact
Row contact/separating action, thus the connection/disconnection of implementing circuit；On the other hand, shut-off mechanism portion has: abnormal current is examined
Survey portion, the abnormal current flow through in circuit is detected by it, and open-close mechanism section, and it is by abnormal current test section
Detection action conveys to movable contactor plus the operation of operation handle；A pair circuit is provided in a pair circuit respectively and arranges sky
In, it is to be crossed over to load side terminal, the insulation wall that formed in casing by from power supply side terminal that this pair circuit arranges space
Separation is formed；Operation handle and open-close mechanism section are configured in a pair circuit and arrange in the space of the side in space.
According to this structure, even if being to be equipped with to be combined two fixed contacts and two movable contacts on a circuit
Structure, the most each pole is equipped with the structure of two contacts, owing to operation handle and open-close mechanism section being arranged in the circuit of a side
In arranging space, therefore it also is able on the circuit of both sides, arrange connection, the insulation wall in imperforation portion, it is possible to both sides'
Circuit insulate well.
Invention in second embodiment is characterised by: in the structure described in the first embodiment, and abnormal current detects
Portion is arranged on the circuit of both sides, and the detection action of this abnormal current test section is conveyed to open-close mechanism section and make it
The reception and registration parts carrying out cut-out action have: the engaging arm pieces that engages with the abnormal current test section of both sides, to open-close mechanism section
Carry out the operating sheet of opening operation and be erected at the main part between engaging arm pieces and operating sheet；This main part is provided in absolutely
In the space formed in edge wall.
According to this structure, owing to passing on parts to be provided in insulation wall, therefore need not that the circuit of a side is arranged space and become
Little, or be provided for arranging the peristome passing on parts on insulation wall, it becomes possible to the good insulation between holding circuit.
Invention in 3rd embodiment is characterised by: in the structure described in the first embodiment or the second embodiment
In, the section that the space in insulation wall is formed is slit-shaped, meanwhile, passes on the main part of parts to be formed as tabular；Insulation wall
Having the peristome making engaging arm pieces protrude to the left and right, on the other hand, main part has for inaccessible peristome, to engaging arm
The occlusive part that the surrounding of sheet stretches out and formed.
According to this structure, even if the peristome that the engaging arm pieces making reception and registration parts is protruded is formed through on insulation wall, due to
The gap of the surrounding of engaging arm pieces that the occlusive part being formed on main part is inaccessible, therefore, it is possible to maintain left and right circuit to arrange space
Insulation.
According to the present invention, even being equipped with on a circuit two fixed contacts and two movable contacts are combined
Structure, the most each pole is equipped with the structure of two contacts, owing to operation handle and open-close mechanism section being arranged in the circuit of a side
In arranging space, therefore it also is able to arrange the insulation wall in imperforation portion between the circuit of both sides, it is possible to the circuit of both sides is entered
Row insulate well.
Accompanying drawing explanation
Fig. 1 represents an example of dc circuit breaker involved in the present invention, and Fig. 1 (a) is its plane graph, Fig. 1 (b)
It it is its side view.
Fig. 2 is the profile at the line A-A shown in Fig. 1.
Fig. 3 is the plane graph of the dc circuit breaker after unloading capping.
Fig. 4 represents reception and registration parts, and Fig. 4 (a) is its axonometric chart, and Fig. 4 (b) is its plane graph, and Fig. 4 (c) is its side
View.
Fig. 5 is the profile at the line B-B shown in Fig. 1.
Fig. 6 is the profile at the line A-A after removing the chopper component parts in addition to passing on parts.
Fig. 7 is the explanatory diagram after being extracted by contact.
The explanation of reference
1: power supply side terminal；2: load side terminal；3: operation handle；4: casing；10: open-close mechanism section；11:
Abnormal current test section；12: pass on parts；12a: engaging arm pieces；12b: operating sheet；12c: main part；13: can
Dynamic catalyst；15: the first fixed contacts；16: the second fixed contacts；20: support shaft (rotating fulcrum)；23:
Insulation wall；23c: the second peristome (peristome)；C: circuit arranges space；L: circuit；W: occlusive part.
Detailed description of the invention
Hereinafter, referring to the drawings embodiment of specific embodiments of the invention is described in detail.Fig. 1 represents involved by the present invention
And an example of dc circuit breaker, Fig. 1 (a) is its plane graph, and Fig. 1 (b) is its side view.1 is mains side
Terminal, 2 is load side terminal, and 3 is the operation handle that circuit carries out opening and closing operations, and the terminal of this two side is all by two ends
Son is constituted, and in the inside of the casing 4 being made up of capping 4a and base station 4b, is equipped and crosses over to negative from power supply side terminal 1
Carry a pair circuit of side terminal 2.
Power supply side terminal 1 is configured in the relative end of casing 4 with load side terminal 2, below, with power supply side terminal
The configuration section of 1 is rear portion, with the configuration section of load side terminal 2 as front portion, enters with the configuration section operating handle 3 for top
Row explanation.
Fig. 2 represents the profile at line A-A, and represents the structure of the circuit of a side.In fig. 2,10 is response operation
The operation of handle 3 open-close mechanism section of the connection/disconnection of implementing circuit, 11 is that the exception detecting abnormal current is electric
Stream test section, 12 is the reception and registration parts that the detection action of abnormal current test section conveys to open-close mechanism section 10, and 13 is logical
Cross the movable contactor of the contact/separation rotating the contact carried out on circuit.
It addition, constituted response abnormality electric current by open-close mechanism section 10, abnormal current test section 11 and reception and registration parts 12
Generation and cut off the shut-off mechanism portion of circuit.It addition, L indication circuit, circuit L is adapted to from power supply side terminal 1
Place is crossed over to load side terminal 2.
Circuit L possesses: two fixed contacts (first fixed contact the 15, second fixed contact 16) and movably connecing
Tentaculum 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.And, near the load side terminal 2 of circuit L, it is assembled with composition abnormal electric
The stream bimetal leaf 17 of test section 11, calutron 18 etc..
Herein, movable contactor 13 and fixed contact 15,16 are specifically explained.First fixed contact 15
Rear end be connected with power supply side terminal 1, its front is configured in the bottom of casing 4, and arranges upward at its top end
There is the first fixed contact 15a.On the other hand, the second fixed contact 16 is configured in the middle position of casing 4, its
Front is connected with bimetal leaf 17, and locates in its back-end to be provided with the second fixed contact 16a facing downward.It addition, it is adjacent
The circuit L of the opposing party arranged is constituted similarly.
The composition of movable contactor 13 is as shown in Figure 7.Fig. 7 is the explanation of the state after being linked by left and right movable contactor
Figure, as it is shown in fig. 7, corresponding two the circuit L of movable contactor 13 are configured to a pair in left and right, and both sides pass through support shaft
20 link.And, it is configured with the first movable contact 13a the most facing downward, is configured with second upward in its front end
Movable contact 13b.
Rotating integratedly centered by this support shaft 20, the first movable contact 13a is carried out relative to the first fixed contact 15a
Contact/separate, the second movable contact 13b carries out contacting/separating relative to the second fixed contact 16a, constitutes so-called the two poles of the earth
Four structure of contact terminals.
It addition, movable contactor 13 is maintained in the housing 21 linked with open-close mechanism section 10, open-close mechanism section 10
On-off action convey to movable contactor 13 by housing 21.
Fig. 3 represents the plane graph of the dc circuit breaker after the capping 4a unloaded in Fig. 1.As shown in Fig. 3 (and Fig. 1), behaviour
Make handle 3 to be configured on the circuit L of a side, as in figure 2 it is shown, open-close mechanism section 10 is configured in this operation handle 3
Bottom.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 to detect different
Often after electric current, parts 12 are passed in forwards pressing.
Fig. 4 represents reception and registration parts 12, and Fig. 4 (a) is its axonometric chart, and Fig. 4 (b) is its plane graph, and Fig. 4 (c) is it
Side view.Pass on parts 12 have: to the left and right extend and engage with abnormal current test section 11 engaging arm pieces 12a, make
Open-close mechanism section 10 carries out opening action, i.e. cut off action bar-shaped operating sheet 12b and link engaging arm pieces 12a and
The main part 12c of operating sheet 12b.Main part 12c is formed longitudinal direction and fore-and-aft direction is roomy, left and right directions is thin tabular.
The surrounding that this main part 12c has to engaging arm pieces 12a stretches the occlusive part W of formation, prevent described later absolutely
Gap is produced at second peristome 23c of edge wall 23.It addition, operating sheet 12b only protrudes to be arranged on is configured with switching mechanism
On the direction of the circuit L of one side in portion 10.
Fig. 5 represents the section at the line B-B of the casing 4 after removing chopper component parts.As it is shown in figure 5, at casing 4
The centre of inside erect and be provided with insulation wall 23, cross over the inside of casing 4 in the longitudinal direction and will separate around,
Define independent two circuit and arrange space C (C1, C2).Circuit L is provided in its respective circuit and arranges space
In C1, C2.It addition, the circuit that the profile at line A-A in above-mentioned Fig. 2 represents left side as shown in Figure 5 arranges sky
Between C1.
And, 23a is that the section of formation is the space of slit-shaped in insulation wall 23, passes on the main part 12c of parts 12
Can be accommodated in the most slidably in the 23a of this space.
Fig. 6 represents the section at the line A-A of the casing 4 after removing chopper component parts, and represents the shape of insulation wall 23
State.But, passing on parts 12 is to represent with the state after installing.In figure 6,1a is power supply side terminal configuration section,
2a is load side terminal configuration section, and the entirety that insulation wall 23 crosses over casing 4 from power supply side terminal 1 to load side terminal 2 is come
Formed.
And, 23b is first be formed through on insulation wall 23 to insert the support shaft 20 of movable contactor 13
Peristome, 23c is to be formed through on insulation wall 23 to make engaging arm pieces 12a of reception and registration parts 12 protrude to the left and right
The second peristome, insulation wall 23 defines two holes of through left and right.And, 23d is for being used for making reception and registration parts
The operating sheet 12b of 12 arranges, to the circuit of a side, the handle hole that space C1 protrudes, and this handle hole 23d is made only in insulation wall
On the surface of one side of 23.
For two holes so formed, when assembling movable contactor 13, support shaft 20 is inserted through with inaccessible first opening
Portion 23b.And, as shown in Figure 6, the obturation passing on parts 12 that the second peristome 23c is configured in insulation wall 23
Portion W comes inaccessible, and the first peristome 23b and the second peristome 23c is all next inaccessible by assembling chopper component parts.
Such that make for be equipped with on a circuit L by two fixed contacts 15a, 16a and two movable contact 13a,
The structure that 13b is combined, the most each pole is equipped with the structure of two contacts, due to by open-close mechanism section 10 and manipulator
Handle 3 is arranged in the circuit of a side and arranges in the C of space, also therefore be able to arrange on the circuit L of both sides connection, without opening
The insulation wall 23 of oral area, it is possible to the circuit L of both sides is insulated well.
It is additionally, since reception and registration parts 12 to be provided in insulation wall 23, therefore need not the circuit of a side is arranged space C
Diminish, or be provided for arranging the peristome passing on parts 12 on insulation wall 23, it becomes possible to realize between circuit is good
Good insulation.
Further, even if the peristome 23c that engaging arm pieces 12a making reception and registration parts 12 is protruded is formed through at insulation wall
On 23, due to the gap of the surrounding of inaccessible engaging arm pieces 12a of the occlusive part W that is formed on main part 12c, therefore can
Circuit about enough maintenances arranges the insulation of space L.
Although reception and registration parts 12 forwards pressed make opening/closing machine it addition, above-mentioned embodiment be abnormal current test section 11
Structure portion 10 carries out the structure of cut-out action, but can also will pass on parts 12 round about, i.e. rear pressing is carried out
Cut-out action.
Claims (3)
1. a dc circuit breaker, it is characterised in that
In the dc circuit breaker of this two poles of the earth four structure of contact terminal, the rear portion at casing is configured with a pair power supply side terminal respectively,
Front portion is configured with a pair load side terminal, and is equipped with a pair electricity from described power supply side terminal leap to described load side terminal
Road, described circuit is respectively provided with two fixed contacts and movable contactor, and described movable contactor is erected at two and fixing connects
Between tentaculum and constitute a part for described circuit to implement the connection/disconnection of described circuit, it is further equipped with: operation handle,
Described movable contactor is operated by it, and shut-off mechanism portion, and the abnormal current that its detection is flow through in described circuit is also
Described movable contactor is made to carry out rupturing operation, wherein,
Described movable contactor place at its center has rotating fulcrum, by rotation make to be arranged on the movable contact at its two ends with
It is arranged on the fixed contact on described fixed contact and carries out contacting/separating action, thus the connection/disconnection of implementing circuit；
On the other hand, described shut-off mechanism portion has: abnormal current test section, and its exception to flowing through in described circuit is electric
Stream detects, and open-close mechanism section, and the detection action of described abnormal current test section is added described operation handle by it
Operation conveys to described movable contactor；
The pair of circuit is provided in a pair circuit respectively and arranges in space, and the pair of circuit arranges space by from described
Power supply side terminal leap extremely described load side terminal, the insulation wall separation formed in described casing are formed；
Described operation handle and described open-close mechanism section are configured in the pair of circuit and arrange the space of the side in space
In.
Dc circuit breaker the most according to claim 1, it is characterised in that
Described abnormal current test section is arranged on the circuit of both sides, and the detection action of this abnormal current test section is passed
Reach to described open-close mechanism section and make its reception and registration parts carrying out cut-out action have: with the described abnormal current test section of both sides
Engaging engaging arm pieces, described open-close mechanism section is carried out the operating sheet of opening operation and is erected at described engaging arm pieces and institute
State the main part between operating sheet；
In the space that described main part is formed in being provided in described insulation wall.
Dc circuit breaker the most according to claim 1 and 2, it is characterised in that
The section that space in described insulation wall is formed is slit-shaped, and meanwhile, the main part of described reception and registration parts is formed as tabular；
Described insulation wall has a peristome making described engaging arm pieces protrude to the left and right, on the other hand, described main part have for
Inaccessible described peristome, occlusive part that the surrounding to described engaging arm pieces stretches out and formed.
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 true CN106206178A (en) | 2016-12-07 |
| CN106206178B 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 |
| CN106206178B (en) | 2019-02-22 |
| JP6412368B2 (en) | 2018-10-24 |
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