CN109616391A - Varistor contact mechanism and arc-proof circuit breaker - Google Patents
Varistor contact mechanism and arc-proof circuit breaker Download PDFInfo
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- CN109616391A CN109616391A CN201910049228.2A CN201910049228A CN109616391A CN 109616391 A CN109616391 A CN 109616391A CN 201910049228 A CN201910049228 A CN 201910049228A CN 109616391 A CN109616391 A CN 109616391A
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- resistance
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- 230000007246 mechanism Effects 0.000 title claims abstract description 59
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000010891 electric arc Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
- H01H73/40—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by tumbler
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention discloses a variable-resistance contact mechanism and an arc-proof circuit breaker, and relates to the technical field of circuit breaking. The variable resistance contact mechanism comprises a first contact, a second contact, a lead, a resistance piece and a connecting piece. One side of the connecting piece is detachably connected with the first contact, the other side of the connecting piece abuts against the second contact, the second contact is conducted with the first contact through the connecting piece, one end of the resistance piece is connected with the second contact, the other end of the resistance piece is connected with the connecting piece through a lead, and the first contact can drive the connecting piece to be separated from the second contact when being far away from the second contact, so that the second contact is sequentially conducted with the resistance piece, the connecting piece and the first contact. Compared with the prior art, the varistor contact mechanism provided by the invention adopts the connecting piece abutted between the first contact and the second contact and the resistor piece connected with the connecting piece through the wire, so that the current can be reduced and the power-off operation can be completed in a mode of resistor surge, thereby preventing electric arc generation, avoiding potential safety hazard and having strong safety.
Description
Technical field
The present invention relates to breaking technique fields, in particular to a kind of variable resistance contact mechanism and arc protection breaker.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope
With low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, and 3kV or more is generally known as High-Voltage Electrical Appliances.Breaker can be used to
Electric energy is distributed, asynchronous motor is infrequently started, the implementations such as power circuit and motor are protected, when their generations are serious
Energy automatic shutdown circuit when the failures such as overload or short circuit, function are equivalent to Fuse switch and cross underheat relay etc.
Combination, and do not need change components generally after disjunction fault current.
Traditional breaker can generate electric arc during open circuit, and electric arc causes security risk in order to prevent, and people are disconnected
Arc-chute is increased in the device of road, electric arc is extinguished using magnetic blow-out and air-blow technology, but so, necessarily cause open circuit
The increase of body product so that breaker is no longer desirable for specific small area of space, and can not eliminate electric arc from source,
Still there is some potential safety problems in electric arc, safety is poor before being blown out.
In view of this, designing and manufacturing a kind of variable resistance contact mechanism of high safety and arc protection breaker especially exists
It is particularly important in breaker production.
Summary of the invention
The purpose of the present invention is to provide a kind of variable resistance contact mechanisms, and structure is simple, can be in such a way that resistance increases sharply
Reduce electric current and complete power-off operation and avoid security risk to prevent electric arc, occupies little space, high safety.
Another object of the present invention is to provide a kind of arc protection breakers, and structure is simple, can be increased sharply by resistance
Mode, which reduces electric current and completes power-off operation, avoids security risk to prevent electric arc, occupies little space, safety
Property is strong, stablizes practical.
The present invention is that it is realized by adopting the following technical scheme.
A kind of variable resistance contact mechanism, including the first contact, the second contact, conducting wire, resistance unit and connector, the one of connector
Side is detachably connected with the first contact, and the other side is supported with the second contact, and the second contact is connected by connector with the first contact,
One end of resistance unit is connect with the second contact, and the other end is connect by conducting wire with connector, and the first contact can be far from second
Band follower link is separated with the second contact when contact, so that the second contact is successively connected with resistance unit, connector and the first contact.
Further, the resistance of resistance unit is greater than the resistance of connector.
Further, variable resistance contact mechanism further includes locating part, and locating part and connector interval are arranged, and with connector
Position is corresponding, and locating part can limit connector when connector moves to predeterminated position, so that connector and
The separation of one contact.
Further, connector includes integrally formed support division and interconnecting piece, and interconnecting piece detachably connects with the first contact
It connects, locating part is set to support division close to the side of the first contact, and support division is selectively supported with locating part.
Further, interconnecting piece is provided with the first magnetic block, and the first contact is provided with the second magnetic block, the first magnetic block and
The connection of second magnetic block magnetism.
Further, interconnecting piece is provided with grab, and the first contact is provided with buckle, and grab and buckle are clamped.
Further, locating part is detachably connected with support division, and locating part can be when support division and locating part support pair
The position of support division is fixed.
Further, locating part is provided with third magnetic block, and support division is provided with the 4th magnetic block, third magnetic block and
The connection of four magnetic block magnetism.
Further, variable resistance contact mechanism further includes the first power-connecting piece and the second power-connecting piece, and the first power-connecting piece and first touch
Head connection, the second power-connecting piece connect with the second contact, and the first power-connecting piece is able to drive that the first contact is close or separate second connects
Electric part.
A kind of arc protection breaker, including above-mentioned variable resistance contact mechanism, which includes the first contact, the
Two contacts, conducting wire, resistance unit and connector, the side of connector are detachably connected with the first contact, the other side and the second contact
It supports, the second contact is connected by connector with the first contact, and one end of resistance unit is connect with the second contact, and the other end is by leading
Line is connect with connector, and the first contact band follower link can separate when far from the second contact with the second contact, so that second
Contact is successively connected with resistance unit, connector and the first contact.
Variable resistance contact mechanism and arc protection breaker provided by the invention have the advantages that
Variable resistance contact mechanism provided by the invention, including the first contact, the second contact, conducting wire, resistance unit and connector, even
The side of fitting is detachably connected with the first contact, and the other side is supported with the second contact, and the second contact passes through connector and first
Contact conducting, one end of resistance unit connect with the second contact, and the other end passes through conducting wire and connect with connector, and the first contact can be
Band follower link is separated with the second contact when far from the second contact so that the second contact successively with resistance unit, connector and first
Contact conducting.Compared with prior art, variable resistance contact mechanism provided by the invention is held in the first contact and the due to using
Connector between two contacts and the resistance unit being connect by conducting wire with connector, so can be in such a way that resistance increases sharply
Reduce electric current and complete power-off operation and avoid security risk to prevent electric arc, occupies little space, high safety.
Arc protection breaker provided by the invention, including variable resistance contact mechanism, structure is simple, can be increased sharply by resistance
Mode, which reduces electric current and completes power-off operation, avoids security risk to prevent electric arc, occupies little space, safety
Property is strong, stablizes practical.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the arc protection breaker structural schematic diagram under normal condition that first embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the variable resistance contact mechanism that first embodiment of the invention provides；
Fig. 3 is structural schematic diagram of the arc protection breaker that provides of first embodiment of the invention during open circuit；
Fig. 4 be the arc protection breaker that provides of first embodiment of the invention be near completion open circuit when structural schematic diagram；
Fig. 5 is the structural schematic diagram after the completion of the arc protection breaker open circuit that first embodiment of the invention provides.
Icon: 10- arc protection breaker；100- variable resistance contact mechanism；The first power-connecting piece of 110-；The second power-connecting piece of 120-；
The first contact of 130-；131- the second magnetic block；The second contact of 140-；150- conducting wire；160- resistance unit；170- locating part；171-
Third magnetic block；180- connector；181- support division；182- interconnecting piece；183- the first magnetic block；The 4th magnetic block of 184-；
200- trip switch；300- shell；The first connecting terminal of 400-；The second connecting terminal of 500-；600- combined floodgate spanner；700- tripping
Mechanism.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the instructions such as term "inner", "outside", "upper", "lower", "horizontal"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connected ", " installation ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment can be combined with each other.
First embodiment
Please refer to Fig. 1, the embodiment of the invention provides a kind of arc protection breaker 10, for occur heavy overload or
The automatic shutdown circuit when failures such as short circuit guarantees Electrical Safety.Its structure is simple, can reduce electricity in such a way that resistance increases sharply
It flows and completes power-off operation and avoid security risk to prevent electric arc, occupy little space, high safety is stablized real
With.
Arc protection breaker 10 includes variable resistance contact mechanism 100, trip switch 200, shell 300, the first connecting terminal
400, the second connecting terminal 500, combined floodgate spanner 600 and tripping mechanism 700.Variable resistance contact mechanism 100, trip switch 200, first
Connecting terminal 400, the second connecting terminal 500 and tripping mechanism 700 are mounted in shell 300, under the action of shell 300
To masking and protection.First connecting terminal 400 and the opposite both ends for being installed on shell 300 of the second connecting terminal 500, variable resistance touching
Head mechanism 100 and trip switch 200 are connect with the first connecting terminal 400, the first connecting terminal 400 and extraneous power supply or electricity
Device connection.One end of second connecting terminal 500 is connect with variable resistance contact mechanism 100, and the other end connects with electric appliance or extraneous power supply
It connects.Variable resistance contact mechanism 100 is connect with tripping mechanism 700, and trip switch 200 can push tripping mechanism in circuit overcurrent
700, drive tripping mechanism 700 to rotate, so that variable resistance contact mechanism 100 separates, circuit is disconnected, in the process, tripping
Mechanism 700 pushes trip switch 200, resets trip switch 200, waits close a floodgate next time.Combined floodgate spanner 600 and tripping mechanism
700 linkages, and can be rotated relative to shell 300.The rotation of tripping mechanism 700 is able to drive the rotation of combined floodgate spanner 600, that is, occurs
Tripping, if desired connection circuit, user can turn round combined floodgate spanner 600 by external force, drive tripping mechanism 700 to turn round, make again
It obtains variable resistance contact mechanism 100 to close up, to make power on circuitry.
In the present embodiment, the first connecting terminal 400 is input terminal, and the first connecting terminal 400 passes through electric wire and external world's electricity
Source connection, the second connecting terminal 500 are output terminal, and the second connecting terminal 500 is connect by electric wire with electric appliance.
Referring to figure 2., variable resistance contact mechanism 100 include the first power-connecting piece 110, the second power-connecting piece 120, the first contact 130,
Second contact 140, conducting wire 150, resistance unit 160, locating part 170 and connector 180.First power-connecting piece 110 and the first contact 130
Connection, the first power-connecting piece 110 are able to drive the first contact 130 and move, with close or separate second power-connecting piece 120.The
Two power-connecting pieces 120 are connect with the second contact 140, and the side of connector 180 is detachably connected with the first contact 130, the other side with
Second contact 140 supports, and the second contact 140 is connected by connector 180 and the first contact 130.One end of resistance unit 160 and the
The connection of two contacts 140, the other end are connect by conducting wire 150 with connector 180, and the first contact 130 can be far from the second contact
When 140 band follower link 180 separated with the second contact 140 so that the second contact 140 successively with resistance unit 160, connector 180
It is connected with the first contact 130.Locating part 170 and the interval of connector 180 are arranged, and, limit corresponding with the position of connector 180
Part 170 can limit connector 180 when connector 180 moves to predeterminated position, so that connector 180 and the first touching
First 130 separation, so that the first contact 130 and the second contact 140 disconnect.
In the present embodiment, the first contact 130 is moving contact, and the first power-connecting piece 110 is connect with tripping mechanism 700, and first connects
Electric part 110 can rotate under the drive of tripping mechanism 700, to drive the first contact 130 close or far from the second contact
140, the first contact 130 is connect with the second connecting terminal 500, to be connected with electric appliance.Second contact 140 is static contact, the second touching
First 140 are connect by the second power-connecting piece 120 with trip switch 200, and the second contact 140 is connect with the first connecting terminal 400, with
Extraneous power supply conducting.First contact 130 can be bonded or be detached from the second contact 140, to realize between extraneous power supply and electric appliance
Be switched on or off.
It is worth noting that, first contact 130 passes through connection when arc protection breaker 10 is under normal condition
Part 180 is supported with the second contact 140, forms first conductive path (figure is not marked), the first connecting terminal 400 passes through the first conductive path
Diameter is connect with the second connecting terminal 500, so that be connected between extraneous power supply and electric appliance, first conductive path is first to connect at this time
Circuit part between line terminals 400 and the second connecting terminal 500, in the present embodiment, the resistance very little in connector 180 can
To ignore, so that the resistance very little of first conductive path, will not be changed by the electric current of first conductive path, thus
It avoids impacting power on circuitry.
When arc protection breaker 10 starts open circuit work, the first power-connecting piece 110 is separate under the action of tripping mechanism 700
Second power-connecting piece 120, and drive the first contact 130 far from the second contact 140, the first contact 130 is moved with follower link 180,
So that connector 180 and the second contact 140 are detached from, breaking between the second contact 140 and connector 180 at this time, the second contact 140
It is connect by resistance unit 160, conducting wire 150 and connector 180 with the first contact 130, forms second conductive path (figure is not marked),
First connecting terminal 400 is connect by second conductive path with the second connecting terminal 500, so that leading between extraneous power supply and electric appliance
Logical, second conductive path is the circuit part between the first connecting terminal 400 and the second connecting terminal 500, this implementation at this time
In example, the Resistance Maximum in resistance unit 160, so that the Resistance Maximum of second conductive path, passes through the electric current of second conductive path
It is minimum, close to zero；Subsequent first power-connecting piece 110 continues separate second power-connecting piece 120 under the drive of tripping mechanism 700, when
When connector 180 moves to predeterminated position, locating part 170 limits connector 180, cause the first contact 130 with connect
Part 180 separates, and realizes power-off, in the process, since the electric current in circuit is close to zero, and so electric arc will not be generated, safety
Reliably.
It should be noted that the resistance of resistance unit 160 be much larger than connector 180 resistance, when arc protection breaker 10 into
When row open circuit work, circuit between the first connecting terminal 400 and the second connecting terminal 500 is transformed to the from first conductive path
Two conductive paths, cause resistance to increase sharply so that the current break in circuit reduces, close to zero, with prevent the first contact 130 with
Connector 180 generates electric arc when separating.
It is worth noting that, connector 180 includes integrally formed support division 181 and interconnecting piece 182.Interconnecting piece 182 with
First contact 130 is detachably connected, and the first contact 130 is able to drive interconnecting piece 182 and moves.Locating part 170 be set to
Portion 181 is held close to the side of the first contact 130, support division 181 is selectively supported with locating part 170, and locating part 170 can be right
Support division 181 is limited, to limit to interconnecting piece 182, so that interconnecting piece 182 is separated with the first contact 130, is prevented
Entire connector 180 continues to move with the first contact 130.
In the present embodiment, locating part 170 is fixedly installed in shell 300, and is set to the lower section of interconnecting piece 182, limit
The height of part 170 matches with 181 height of support division, when connector 180 moves to predeterminated position, locating part 170 with support
Portion 181 is hit, so that interconnecting piece 182 is detached from the first contact 130, hereafter band of first contact 130 in the first power-connecting piece 110
Continue to move under dynamic, 180 backstop of connector is in side of the locating part 170 far from the first power-connecting piece 110.
It should be noted that interconnecting piece 182 is provided with the first magnetic block 183, the first contact 130 is provided with the second magnetic block
131,131 magnetism connection of the first magnetic block 183 and the second magnetic block, so that the first contact 130 is able to drive the generation of interconnecting piece 182
Movement, and interconnecting piece 182 can separate under the external force for being greater than the magnetic attraction with the first contact 130.
It is worth noting that, locating part 170 is detachably connected with support division 181, locating part 170 can be in support division 181
The position of support division 181 is fixed when being supported with locating part 170, to prevent connector 180 from occurring relative to locating part 170
Displacement resets convenient for closing a floodgate.In the present embodiment, locating part 170 is provided with third magnetic block 171, and support division 181 is provided with the 4th
Magnetic block 184, third magnetic block 171 and the magnetic connection of the 4th magnetic block 184, are adsorbed in locating part 170 for support division 181
On, prevent connector 180 to be subjected to displacement, and connector 180 can be detached from locating part 170 when closing a floodgate, while adsorb again
In on the first contact 130.
Incorporated by reference to referring to Fig.1, Fig. 3, Fig. 4 and Fig. 5, it should be noted that when circuital current is less than preset value, first
Contact 130 is supported by connector 180 with the second contact 140, and first conductive path is formed, and the electric current exported from extraneous power supply is logical
First conductive path is crossed, and is transported in electric appliance, in the process, the resistance very little of connector 180, close to zero, electric current is logical
The loss very little for crossing first conductive path generation, can be ignored, electric appliance is run well.
When circuital current is more than preset value, trip switch 200 pushes tripping mechanism 700 to rotate, the first power-connecting piece
110 under the drive of tripping mechanism 700 far from the second power-connecting piece 120 so that connector 180 is separated with the second contact 140, second
Contact 140 is connected by resistance unit 160, conducting wire 150 and connector 180 and the first contact 130, forms second conductive path,
The electric current exported from extraneous power supply is transported in electric appliance by second conductive path, in the process, the electricity of resistance unit 160
Resistance greatly, causes through the electric current of second conductive path close to zero；Band of subsequent first power-connecting piece 110 in tripping mechanism 700
Far from the second power-connecting piece 120, it is disconnected that connector 180 separates realization under the action of locating part 170 with the first contact 130 for dynamic lower continuation
Electricity, connector 180 is adsorbed on locating part 170 at this time, in the process, since the electric current in circuit is close to zero, so not
Electric arc can be generated, securely and reliably.
When combined floodgate, user turns round combined floodgate spanner 600 by external force, and tripping mechanism 700 is driven to turn round, to drive first to connect
Electric part 110 turns round, so that the first contact 130 is supported with connector 180, connector 180 is separated with locating part 170 at this time, and inhales
It investing on the first contact 130, subsequent first power-connecting piece 110 continues to turn round, until connector 180 is supported with the second contact 140, it is complete
At reset.
Variable resistance contact mechanism 100 provided in an embodiment of the present invention, including the first contact 130, the second contact 140, conducting wire
150, resistance unit 160 and connector 180, the side of connector 180 are detachably connected with the first contact 130, the other side and second
Contact 140 supports, and the second contact 140 is connected by connector 180 and the first contact 130, one end of resistance unit 160 and the second touching
First 140 connection, the other end are connect by conducting wire 150 with connector 180, and the first contact 130 can be when far from the second contact 140
Band follower link 180 separated with the second contact 140 so that the second contact 140 successively with resistance unit 160, connector 180 and first
Contact 130 is connected.Compared with prior art, variable resistance contact mechanism 100 provided by the invention is held in the first touching due to using
First 130 and second connector 180 between contact 140 and the resistance unit 160 that is connect by conducting wire 150 with connector 180, institute
Safety is avoided to prevent electric arc can reduce electric current by way of resistance surge and complete power-off operation
Hidden danger occupies little space, high safety, so that arc protection breaker 10 is reliable and stable, it is practical.
Second embodiment
The embodiment of the invention provides a kind of variable resistance contact mechanisms 100, compared with first embodiment, the difference of the present embodiment
It is interconnecting piece 182 there are no more the first magnetic block 183, there are no more the second magnetic blocks 131 for the first contact 130.
In the present embodiment, interconnecting piece 182 is provided with grab (not shown), and the first contact 130 is provided with buckle (not shown),
Grab and buckle are clamped, and are moved so that the first contact 130 is able to drive interconnecting piece 182, and interconnecting piece 182 can be big
It is separated under the external force of the clamping power with the first contact 130.
The beneficial effect phase of the beneficial effect of variable resistance contact mechanism 100 provided in an embodiment of the present invention and first embodiment
Together, details are not described herein.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of variable resistance contact mechanism, which is characterized in that including the first contact, the second contact, conducting wire, resistance unit and connector,
The side of the connector is detachably connected with first contact, and the other side is supported with second contact, second touching
Head is connected by the connector with first contact, and one end of the resistance unit is connect with second contact, the other end
It is connect by the conducting wire with the connector, first contact can drive the connection when far from second contact
Part is separated with second contact, so that second contact is successively touched with the resistance unit, the connector and described first
Head conducting.
2. variable resistance contact mechanism according to claim 1, which is characterized in that the resistance of the resistance unit is greater than the connection
The resistance of part.
3. variable resistance contact mechanism according to claim 1, which is characterized in that the variable resistance contact mechanism further includes limit
Part, the locating part and the connector interval are arranged, and corresponding with the position of the connector, and the locating part can be
The connector is limited when the connector moves to predeterminated position, so that the connector and first contact point
From.
4. variable resistance contact mechanism according to claim 3, which is characterized in that the connector includes integrally formed supports
Portion and interconnecting piece, the interconnecting piece are detachably connected with first contact, and it is close that the locating part is set to the support division
The side of first contact, the support division are selectively supported with the locating part.
5. variable resistance contact mechanism according to claim 4, which is characterized in that the interconnecting piece is provided with the first magnetic block,
First contact is provided with the second magnetic block, and the first magnetic block is connected with the second magnetic block magnetism.
6. variable resistance contact mechanism according to claim 4, which is characterized in that the interconnecting piece is provided with grab, and described
One contact is provided with buckle, and the grab and the buckle are clamped.
7. variable resistance contact mechanism according to claim 4, which is characterized in that the locating part and the support division are detachable
Connection, the locating part can be fixed the position of the support division when the support division is supported with the locating part.
8. variable resistance contact mechanism according to claim 7, which is characterized in that the locating part is provided with third magnetic block,
The support division is provided with the 4th magnetic block, and the third magnetic block is connected with the 4th magnetic block magnetism.
9. variable resistance contact mechanism according to claim 1, which is characterized in that the variable resistance contact mechanism further includes first connecing
Electric part and the second power-connecting piece, first power-connecting piece are connect with first contact, second power-connecting piece and second touching
Head connection, first power-connecting piece be able to drive first contact close to or far from second power-connecting piece.
10. a kind of arc protection breaker, which is characterized in that including variable resistance contact machine as described in any one of claim 1 to 9
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049228.2A CN109616391B (en) | 2019-01-18 | 2019-01-18 | Resistance-variable contact mechanism and arc-proof circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049228.2A CN109616391B (en) | 2019-01-18 | 2019-01-18 | Resistance-variable contact mechanism and arc-proof circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109616391A true CN109616391A (en) | 2019-04-12 |
| CN109616391B CN109616391B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910049228.2A Active CN109616391B (en) | 2019-01-18 | 2019-01-18 | Resistance-variable contact mechanism and arc-proof circuit breaker |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098485A (en) * | 2016-08-04 | 2016-11-09 | 厦门大恒科技有限公司 | Circuit breaker |
| CN205911269U (en) * | 2016-08-04 | 2017-01-25 | 厦门大恒科技有限公司 | Circuit breaker |
| CN108777244A (en) * | 2018-08-20 | 2018-11-09 | 厦门大恒科技有限公司 | Energy storage hydraulic circuit breaker and overcurrent protection equipment |
| CN109036944A (en) * | 2018-08-20 | 2018-12-18 | 厦门大恒科技有限公司 | Miniature vacuum contact mechanism and vacuum contact miniature circuit breaker |
| CN209150033U (en) * | 2019-01-18 | 2019-07-23 | 厦门大恒科技有限公司 | Varistor contact mechanism and arc-proof circuit breaker |
-
2019
- 2019-01-18 CN CN201910049228.2A patent/CN109616391B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098485A (en) * | 2016-08-04 | 2016-11-09 | 厦门大恒科技有限公司 | Circuit breaker |
| CN205911269U (en) * | 2016-08-04 | 2017-01-25 | 厦门大恒科技有限公司 | Circuit breaker |
| CN108777244A (en) * | 2018-08-20 | 2018-11-09 | 厦门大恒科技有限公司 | Energy storage hydraulic circuit breaker and overcurrent protection equipment |
| CN109036944A (en) * | 2018-08-20 | 2018-12-18 | 厦门大恒科技有限公司 | Miniature vacuum contact mechanism and vacuum contact miniature circuit breaker |
| CN209150033U (en) * | 2019-01-18 | 2019-07-23 | 厦门大恒科技有限公司 | Varistor contact mechanism and arc-proof circuit breaker |
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| CN109616391B (en) | 2024-04-30 |
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