CN106009456A - Insulation material molded body for arc extinction and circuit breaker comprising same - Google Patents
Insulation material molded body for arc extinction and circuit breaker comprising same Download PDFInfo
- Publication number
- CN106009456A CN106009456A CN201610178365.2A CN201610178365A CN106009456A CN 106009456 A CN106009456 A CN 106009456A CN 201610178365 A CN201610178365 A CN 201610178365A CN 106009456 A CN106009456 A CN 106009456A
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- CN
- China
- Prior art keywords
- molded body
- insulant
- extinguishing arc
- arc
- extinguishing
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention provides an insulation material molded body (5) for arc extinction. The molded body (5) comprises 50 mass% or more of a cross-linked polymer derived from at least one alkene monomer. The alkene monomer comprises at least one cross-linked cycloolefin monomer. The cross-linked cycloolefin monomer belongs to the aliphatic compounds with a carbon ring structure containing carbon-carbon double bonds. The molecular structure of the cross-linked cycloolefin monomer comprises a plurality of carbon-carbon double bonds.
Description
Technical field
The present invention relates to a kind of extinguishing arc insulant molded body and there is this extinguishing arc insulation material
The circuit-breaker of material molded body.
Background technology
The circuit-breaker such as Inturruptor for sub-line, RCCB is following device, i.e. right
The load current during regular event of power circuit carries out break-make, and due to overload, short
The reasons such as road and when the secondary side of power circuit flows through abnormal current, cooperate with protective relay
Disconnect power circuit, the power supply of the primary side from power circuit is disconnected, thus is used for
The power circuit (load circuit, electric wire etc.) of secondary side is protected.
In circuit-breaker as above, if when energising in order to power circuit is broken
Open, and make the contact of movable contact and the contact separation of fixed contact therefor, the most between
Electric arc (arc) can be produced.Electric arc can hinder the disconnection of circuit, and becomes circuit-breaker
The heat of component parts and electromagnetic force burden, it is therefore desirable to rapidly electric arc is carried out extinguishing arc.
1 method as the extinguishing arc for promoting electric arc, it is known to following method, i.e.
Extinguishing arc insulant molded body is arranged in the moving contact being exposed to movable contact with solid
Position in the electric arc of the surrounding determining the fixed contact of contact.Extinguishing arc insulant molding
If body is exposed in electric arc, then the material itself constituting this molded body decomposes and produces gas
(gas), the electric arc by being realized by produced gas cooling, by produced gas
The extension etc. of electric arc that realizes of injection, thus promote the extinguishing arc of electric arc.
In Japanese Unexamined Patent Publication 7-302535 publication (patent documentation 1), disclose conduct
The extinguishing arc main constituent of the material of insulant molded body, uses polypropylene
(polypropylene), polyethylene (polyehtylene), polymethylpentene
(polymethylpentene) polyolefin (polyolefin) resin such as.These vistanexes
Containing aromatic rings in resin, free carbon when being exposed in electric arc therefore can be suppressed to produce and
Peripherad dispersing, electric arc arc performance is excellent.
But, these vistanexes are to show thermoplastic material, thermostability and strong
Spend relatively low, be particularly difficult to obtain when applying at the chopper of high interrupting capacity type required resistance to
Hot and intensity.
Therefore, disclosed in Japanese Unexamined Patent Publication 2008-130373 publication (patent documentation 2)
There is following technology, i.e. as the extinguishing arc material of insulant molded body, use containing by methylene
A part for the hydrogen atom of base (metylene) chain hydroxyl is replaced, and relative to 1 mole of Asia
The resin combination of the methyl 1 vistanex containing 0.2～0.7 hydroxy.In patent
The description below is had, i.e. by implementing radiation after the molding of this resin combination described in document 2
Crosslinking such that it is able to the extinguishing arc providing thermostability, intensity and electric arc arc performance excellent is used absolutely
Edge material molded compact.
But, in order to implement to process to the crosslinking with radiation of resin material, need use to be placed in suitable
When radiation control under special irradiation apparatus, there is resin material (insulant molding
Body) manufacturing cost rise such problem.
Summary of the invention
The present invention proposes in view of above-mentioned problem, its object is to provide a kind of resistance to
Hot, intensity and electric arc arc performance are excellent, it is possible to by simple equipment and technique
(process) the extinguishing arc insulant molded body manufactured.
The extinguishing arc insulant molded body of the present invention contains the bag more than or equal to 50 mass %
Containing the construction unit derivative from least one alkene (olefin) class monomer (monomer)
Cross linked polymer.Vinyl monomer is characterised by comprising at least one crosslinking cycloolefin
(cycloolefin) class monomer.Crosslinking ring vinyl monomer is containing having double bond between carbon atom
Carbocyclic ring structure aliphatic compound among, have between multiple carbon atom double in molecular configuration
The compound of key.
According to the present invention, the cross linked polymer with three-dimensional mesh structure only passes through heat treated
Formed, therefore, it is possible to provide thermostability, intensity and electric arc extinguishing arc by simple equipment and technique
The extinguishing arc of excellent performance insulant molded body.
Above-mentioned and other purpose, feature, scheme and the advantage of the present invention, by with accompanying drawing phase
Described further below about the present invention that association carries out understanding, it is possible to be made apparent from.
Accompanying drawing explanation
(a) of Fig. 1 is the situation during disconnection of the arc-extinction device showing schematically embodiment
Front view, (b) is the schematic of the cross section of the arc-extinction device comprising the Ib-Ib along Fig. 1 (a)
Side view.
Fig. 2 is the oblique view of disconnection (OFF) state of the arc-extinction device representing embodiment.
(connect when Fig. 3 is the contact of an example of the circuit-breaker representing embodiment
(ON) state) sectional view.
Fig. 4 is the broken section of an example of the circuit-breaker of the embodiment represented in figure 3
Figure, the figure of (off-state) when being the disconnection of indication circuit chopper.
(a) of Fig. 5 shows schematically fixed contact therefor and extinguishing arc insulant molded body
The side view of one example of configuration relation, (b) is the top view of Fig. 5 (a).
Detailed description of the invention
Below, based on accompanying drawing to extinguishing arc insulant molded body involved in the present invention and
The embodiment of the circuit-breaker with extinguishing arc insulant molded body is carried out in detail
Bright.It addition, the invention is not restricted to following description, it is possible in the purport without departing from the present invention
In the range of suitably change.Additionally, in the accompanying drawing shown in below, in order to make it easy to understand,
Sometimes the scale of each several part is different from reality.Also it is same between each accompanying drawing.
Embodiment 1.
(circuit-breaker)
First, the detailed content at the extinguishing arc insulant molded body to present embodiment is carried out
Before explanation, with reference to Fig. 1～Fig. 5, the circuit-breaker of present embodiment is illustrated.
Fig. 1 (a) is the extinguishing arc dress showing schematically the circuit-breaker involved by present embodiment
The front view of the situation during disconnection put, Fig. 1 (b) is to schematically show to comprise along Fig. 1 (a)
The disconnection of arc-extinction device in cross section of Ib-Ib time the side view of situation.Fig. 1 (a) with
And in Fig. 1 (b), moving contact 2 is arranged on fixed contact therefor 3 side of movable contact 1,
It is provided with fixed contact 4 in one end of fixed contact therefor 3 and the position corresponding with moving contact 2.And
And, in the way of clipping the space between moving contact 2 and fixed contact 4, it is provided with 2 extinguishing arcs
With insulant molded body 5.
Circuit-breaker involved by present embodiment is in Fig. 1 (a) and Fig. 1 (b), cruelly
It is exposed between moving contact 2 and fixed contact 4 at the part in the electric arc produced be provided with extinguishing arc
With insulant molded body 5.Extinguishing arc insulant molded body 5 is by comprising more than or equal to 50
The material of the cross linked polymer described later of quality % is constituted.
Below, the action to circuit-breaker illustrates.At Fig. 1 (a) and Fig. 1 (b)
In, it is by open-close mechanism section (with reference to Fig. 3 and Fig. 4) action, and movable contact 1 turn
Dynamic, thus the structure that moving contact 2 contacts with fixed contact 4 or separates.By make contact it
Between contact, thus electric power from power supply be supplied to load.In order to ensure the reliability of energising, movably
Contact 2 is pressed in fixed contact 4 with the contact pressure of regulation.
If it occur that short circuit accident etc., flow through bigger overcurrent, then moving contact in circuit
The electromagnetic repulsion force of the contact surface between 2 and fixed contact 4 becomes the strongest.Owing to overcoming applying
Contact pressure on above-mentioned moving contact 2, therefore movable contact 1 rotates, moving contact 2
Separate with fixed contact 4, additionally, utilize the action of open-close mechanism section and tripgear, with
The separating distance fixed contact 4 and moving contact 2 increases, and arc resistance increases, thus electric
Arc voltage rises.
During disconnection action as above, between moving contact 2 and fixed contact 4,
Electric arc is utilized to produce substantial amounts of energy (energy) in the short time, in several milliseconds.Now, exist
The extinguishing arc insulant molded body that the side of arc-extinction device is arranged produces owing to being exposed in electric arc
Raw decomposition gas, electric arc is cooled due to produced decomposition gas, extinguishing arc.
Additionally, Fig. 2 is will to have U-shaped or V-shape as the metal of arc-extinction device
Multiple muffler plates 6 stacking at certain intervals of notch 7 and the extinguishing arc of circuit-breaker that obtains
The oblique view of device part.The electric arc 8 produced between moving contact 2 and fixed contact 4 is subject to
Magnetic force to from the direction to muffler plate 6 pulls and extends, and therefore arc voltage is further up.
Additionally, comprised the arc-extinction device 100 of muffler plate 6 by entrance, so that overcurrent current limliting, right
Electric arc carries out extinguishing arc, is disconnected by circuit.Now, extinguishing arc insulant molded body 5 utilizes it
The electric arc produced between moving contact 2 and fixed contact 4 is elongated by decomposition gas, and is pressed into
Comprise in the arc-extinction device 100 of muffler plate 6, thus play the effect of the extinguishing arc promoting electric arc.
Foregoing circuit chopper is illustrated in further detail.Fig. 3 and Fig. 4 is this enforcement
The schematic sectional view of one example of the circuit-breaker of mode, Fig. 3 represents circuit and breaks
During the contact of road device (on-state), Fig. 4 is of the circuit-breaker shown in Fig. 3
Point, there is shown during the disconnection of circuit-breaker (off-state).In Fig. 3 and Fig. 4,
Circuit-breaker have be made up of conductors such as copper movable contact 1, in the one of movable contact 1
The fixing moving contact 2 of end ,/fixed contact 4 of separating close with moving contact 2, it is connected with
The fixed contact therefor 3 being made up of conductors such as copper of fixed contact 4 and another at fixed contact therefor 3
The portion of terminal 9 of the mains side of one end configuration, this circuit-breaker is from external power source connection wiring.
The muffler plate 6 of the arc-extinction device 100 part stacked arrangement across space each other.Extinguishing arc fills
Put 100 by between moving contact 2 and fixed contact 4 produce electric arc cool down and
The multiple muffler plates 6 (battery lead plate (grid)) being made up of the metal of magnetic of extinguishing arc, two
The extinguishing arc side plate 11 of side holding electrode plate is (in Fig. 3 and Fig. 4, there is shown extinguishing arc side plate
Unilateral) and extinguishing arc insulant molded body 5 constitute.Extinguishing arc insulant molded body 5
And extinguishing arc side plate 11 is made up of insulant, extinguishing arc insulant molded body 5 comprises aftermentioned
Specific material.It is movable that extinguishing arc insulant molded body 5 arranges under the state of fig. 4
Between contact 2 and fixed contact 4, and it is set to time viewed from above make fixed contact 4
Expose, cover other major part of the fixed contact therefor 3 being exposed in electric arc (with reference to Fig. 5 (a)
And Fig. 5 (b)).
Additionally, be such as provided with rotation movable contact 1 at foregoing circuit chopper and carry out opening and closing
The open-close mechanism section 110 that drives, for the handle of this open-close mechanism section 110 of manual operation
(handle) portion of terminal 10 etc. of 13, tripgear portion 120 and load-side.Cover portion (cover)
14 and above-mentioned each parts are housed by pedestal 15 and/or fixing, and constitute framework 18
A part.The end plate (endplate) 17 carrying out isolating in portion of terminal 9 and framework 18 is had
Make the steam vent 17a that the hot gas (hot-gas) caused by electric arc is discharged, insert and be arranged on setting
In guiding groove 16 on pedestal 15.
Extinguishing arc insulant molded body 5 with the extinguishing arc of electric arc realized by this decomposition gas and
Insulation shielding in arc-extinction device (space between fixed contact and moving contact) and
The electric arc realized by the gas stream of this decomposition gas is to the sensing of muffler plate 6 (arc-extinction device 100)
For the purpose of and arrange.
For above-mentioned extinguishing arc insulant molded body 5 and contact to (fixed contact therefor 3 with
And movable contact 1) configuration relation, Fig. 5 (a) represents the side view of contact pair,
The top view of Fig. 5 (a) is represented in Fig. 5 (b).In Fig. 5 (a) and Fig. 5 (b),
Extinguishing arc insulant molded body 5 movable contact 1 moving contact 2 (not shown) and
The contact of the fixed contact 4 of fixed contact therefor 3 is to neighbouring setting, as shown in Fig. 5 (b),
Be set to time viewed from above make fixed contact 4 expose, and cover be exposed in electric arc consolidate
Determine other major part of contact 3.Extinguishing arc insulant molded body 5 also functions to for making electricity
The insulating element that arc does not moves to the part in addition to fixed contact 4 of fixed contact therefor 3
Effect.
(extinguishing arc insulant molded body)
The extinguishing arc insulant molded body of present embodiment contains and comprises from least one alkenes list
The cross linked polymer of the construction unit of syntaxy.Total relative to extinguishing arc insulant molded body
Quality, the mass ratio shared by cross linked polymer (is less than or equal to more than or equal to 50 mass %
100 mass %).More preferably equal to or greater than 60 mass %, are further preferably greater than or are equal to
70 mass %.The mass ratio occupied at cross linked polymer less than in the case of 50 mass %, tool
The generation amount having the gas of extinguishing arc effect is not enough, and the disconnection effect of electric arc reduces.
And, above-mentioned vinyl monomer comprises at least one crosslinking ring vinyl monomer.Crosslinking cyclenes
Class monomer is (ring type) aliphatic compound of the carbocyclic ring structure comprising and having double bond between carbon atom
There is in thing, in molecular configuration the compound of double bond between multiple carbon atom.It addition, crosslinking ring
As long as vinyl monomer comprises double bond between the carbon atom in carbocyclic ring structure, have many in molecular configuration
Double bond between individual carbon atom.
By making the crosslinking ring vinyl monomer in molecular configuration with double bond between multiple carbon atom gather
Close, and obtain cross linked polymer.It addition, " crosslinking " refers to utilize, monomer polymerization is formed
The state of three-dimensional mesh structure.
As long as crosslinking ring vinyl monomer comprises the fat of the carbocyclic ring structure with double bond between carbon atom
In compounds of group, molecular configuration has the compound of double bond between multiple carbon atom, does not has
It is particularly limited to, but preferably containing at least a kind norborene (norbornene) class monomer (tool
There is the Norbornene derivative of double bond between multiple carbon atom).Norbornene derivative is at structure
In comprise the compound of norborene skeleton.Generally, norborene is formed as the poly-fall of monomer
Bornylene (polynorbornene) has the such feature of excellent heat resistance, therefore, it is possible to provide
The cross linked polymer of excellent heat resistance.
As Norbornene derivative, it is possible to use the dicyclo penta represented with following general expression (1)
Diene (dicyclopentadiene), three cyclopentadiene represented with following general expression (2)
Etc. (tricyclopentadiene) have diene (dien) class of norborene skeleton and it
Inductor.Wherein, it is considered to the easiness aspect that material is started with, and construct reaction system
Unite such aspect, it is possible to particularly preferably use dicyclopentadiene and inductor thereof.
[chemical formula 1]
[chemical formula 2]
As can in addition to above-mentioned Norbornene derivative use crosslinking cyclenes class list
Body, it is possible to list: the norbornadiene such as represented with following general expression (3)
(norbornadiene), cyclopentadiene (cyclopentadiene), cyclohexadiene
(cyclohexadiene), the compound such as cycloheptadiene (cycloheptadiene) and they
Inductor.
[chemical formula 3]
A part (such as hydrogen) for the structure of these crosslinking ring vinyl monomers can also use alkane (alkyl)
Base, hydroxyl (hydroxy) base, virtue (aryl) base, aralkyl (aralkyl) base, cycloalkanes (cycloalkyl)
The sub stituent displacements such as base, carboxylic (carboxy) base.Additionally, these crosslinking ring vinyl monomers are permissible
It is used alone a kind, it is also possible to use above or equal to 2 kinds of combinations.
Cross linked polymer is by making to comprise the vinyl monomer of crosslinking ring vinyl monomer as described above
Heat treated polymerization is utilized to obtain.
For being formed in the vinyl monomer of cross linked polymer, can be by can be with crosslinking cyclenes class
Other vinyl monomer of monomer copolymerizable uses as comonomer (comonomer).?
In the case of Gai, preferably the ratio of the crosslinking ring vinyl monomer in vinyl monomer total amount be set as greatly
In or equal to 50 moles of %.Ratio at crosslinking ring vinyl monomer is less than 50 moles of above-mentioned %'s
In the case of, the crosslink density of the cross linked polymer owing to being formed through polymerization process reduces, because of
And thermostability and intensity reduce sometimes.
(can be with other alkenes list of crosslinking cyclenes class monomer copolymerizable as comonomer
Body), it is possible to list such as cyclobutane (cyclobutene), cyclopentenes (cyclopentene),
Cycloheptene (cycloheptene) etc..A part (such as hydrogen) for the structure of these comonomers
The sub stituent displacements such as alkyl, hydroxyl, aryl, aralkyl, cycloalkyl, carboxyl can also be used.
Additionally, these comonomers can be used alone a kind, it is also possible to above or equal to 2 kinds of groups
Close and use.
Additionally, formed its cross linked polymer by the vinyl monomer comprising crosslinking ring vinyl monomer
During, it is possible to use polymerization catalyst.As polymerization catalyst, it is possible to list such as unit
The carbene complex of the transition metal of the 4th～8 races on element periodic chart.As concrete polymerization catalyzed
Agent, it is possible to list such as to halogen (halogen) such as molybdenum (molybdenum), tungsten (tungsten)
Compound and alkyl aluminum (arkylaluminum), tin alkyl (arkyltin), lithium alkylide
Etc. (arkylithium) organic metal reducing agent is combined and the catalyst that obtains or ruthenium
(ruthenium) Cabbeen (carbene) complex compounds.
The addition of polymerization catalyst can in the range of the polyreaction of vinyl monomer occurs certainly
By selecting, (comprise the alkenes list of crosslinking ring vinyl monomer preferably with respect to 1 mole of vinyl monomer
Body), the transition metal atoms number in polymerization catalyst is such as larger than or to be equal to 1 × 10-7Mole and
Less than or equal to 1 × 10-4The described amount in scope.Described at the addition ratio of polymerization catalyst
In the case of scope is little, polyreaction cannot fully be carried out sometimes, the molding after solidification heating
Unreacted monomer residual in body, the intensity of curing molding body, thermostability are impaired.Additionally, poly-
Close catalyst addition more than described scope in the case of, curing rate can be due to excessively sometimes
Catalyst reaction and excessively rise, mouldability is impaired.
Extinguishing arc insulant molded body involved by present embodiment can also be possibly together with at least 1
Plant inorganic filler.Preferably inorganic filler is by glass (glass) fiber, inorganic mineral, pottery
(ceramic) at least one of fiber and metal hydroxides is constituted.
(quality of inorganic filler is relative to extinguishing arc insulant molding for the filling rate of inorganic filler
The ratio of the gross mass of body) need to be set to less than 50 mass %, preferably greater than or equal to 0 mass
% and less than 30 mass %.Filling proportion in inorganic filler is more than or equal to the feelings of 50 mass %
Under condition, the amount of cross linked polymer is less than 50 mass %, exposes hence with electric arc and generates
The generation amount of decomposition gas not enough, the disconnection effect of electric arc reduces.
In the present embodiment, fill in extinguishing arc insulant molded body from glass fibre,
In the case of the inorganic filler that inorganic mineral and ceramic fibre are selected, it is possible to be improved and disappear
The arc mechanical strength with insulant molded body and the effect of thermostability.
As inorganic mineral, it is possible to use comprise titanium oxide (titanium), Talcum (talc),
Calcium carbonate (calcium), wollastonite (wallastonite), potassium titanate (potassium),
The known mineral substance of synthetic mineral etc..As ceramic fibre, it is possible to list such as aluminium oxide
(alumina) fiber, aluminium silicate (alumina-silica) fiber etc..
As long as the inorganic filler selected from glass fibre, inorganic mineral and ceramic fibre can be
It is uniformly dispersed in cross linked polymer, it is possible to without its shape and size (size) are carried out
Limit and use.Consider the raising aspect of mechanical strength, preferably from glass fibre, inorganic mineral
And the shape of the inorganic filler of ceramic fibre selection is appointing of threadiness, flakey and needle-like
Meaning person.
Additionally, to the insulant molded body filler metal of the extinguishing arc involved by present embodiment
In the case of hydroxide is as inorganic filler, due to metal hydroxides dehydration endotherm react,
Or from the effect of the water vapor component that metal hydroxides produces, it is possible to give flame retardant effect
Effect is improved with arc performance.
As metal hydroxides, it is possible to list such as aluminium hydroxide and magnesium hydroxide
(magnesium).As long as metal hydroxides can be uniformly dispersed i.e. in cross linked polymer
Can, it is possible to use without its shape and size are defined.
These inorganic fillers can be used alone a kind, it is also possible to combines multiple and uses.Additionally,
To these inorganic fillers, it is also possible to carry out surface process, to reach to improve the close property with resin
Or prevent the purpose of skew.
Furthermore it is possible in the extinguishing arc involved by present embodiment with in insulant molded body,
Do not damage in the range of the effect of present embodiment, add fire retardant, flame retardant, antioxidation
The known additive such as agent, stabilizer, coloring agent.
As the manufacture method of insulant molded body of the extinguishing arc involved by present embodiment, do not have
It is particularly limited to, it is possible to injection molding method, reaction injection molding method, casting, be molded into
The methods well known in the art such as type method, transmission (transfer) method of forming are carried out.
As long as comprise this vinyl monomer of heat treated of the vinyl monomer of crosslinking ring vinyl monomer
Polymerization crosslinking reacts the condition that can carry out, it is possible to do not thermally decompose at cross linked polymer
In the range of, its temperature, atmosphere, time are carried out free setting.
In the present embodiment, it is possible to only produce by heat treated and become extinguishing arc insulant
The material of molded body, the cross linked polymer with three-dimensional mesh structure, therefore, it is possible to simply
Equipment and the technique extinguishing arc that provides thermostability, intensity and electric arc arc performance excellent insulate
Material molded compact.
Therefore, by using the extinguishing arc insulant molded body of present embodiment, it is possible to low
Cost (cost) provides out the circuit-breaker of disconnection excellent performance.
Additionally, cross linked polymer is set to main by the extinguishing arc insulant molded body of present embodiment
Want composition, therefore when chopper uses, also will not soften even if environment temperature rises, it is possible to
Keep its physical behavior and mechanical strength.
Additionally, cross linked polymer has the resin knot being made up of carbon and hydrogen as main composition element
Structure, does not have aromatic rings in resin structure.Therefore, the extinguishing arc of present embodiment insulation material
Material molded body can produce the disconnection effect more comprising hydrogen, steam in its catabolic process
Fruit preferably extinguishing arc gas.Therefore, the extinguishing arc of present embodiment insulant molded body electric arc
Arc performance is excellent.Additionally, due to can suppress to be produced by free carbon when thermally decomposing and cause
Defective insulation, therefore the extinguishing arc insulant molded body insulating properties of present embodiment are the most excellent
Different.
Embodiment 2.
Extinguishing arc involved by present embodiment with insulant molded body possibly together with this point of organic filler
Different from embodiment 1.Point in addition is identical with embodiment 1, therefore omits repetition
Explanation.
Organic filler is made up of at least one fat hydrocarbon rubber (rubber).As aliphatic hydrocarbon
Class rubber, it is possible to list isoprene (isoprene) rubber, butadiene (butadien) rubber
Glue, ethylene, propylene (ethylene-propylene) rubber, propylene diene (ethylene
-propylene-dien) rubber, butyl (butyl) rubber etc..Fat hydrocarbon rubber preferably from
Ethylene propylene rubber and ethylene propylene diene rubber select.
By adding organic filler such that it is able to obtain following effect, i.e. make extinguishing arc insulate
The impact strength (impact resistance) of material molded compact improves, extinguishing arc when preventing owing to disconnecting
Intraventricular pressure rises, causes along with the impact load of release mechanism action producing in molded body
Crackle or damage.Furthermore it is possible to the thickness of extinguishing arc insulant molded body is set to relatively thin,
It is capable of the miniaturization of breaker body.
Additionally, these fat hydrocarbon rubber be using do not comprise aromatic rings aliphatic hydrocarbon as structure list
The elastomeric material of unit.Therefore, exposed by electric arc in organic filler (fat hydrocarbon rubber) and
When being thermal decomposited, it is possible to without separating out free carbon on the extinguishing arc surface of insulant molded body,
Keep surface insulated, the effect of the reduction disconnecting performance that is inhibited.
Even if additionally, ethylene propylene rubber and ethylene propylene diene rubber are at fat hydrocarbon rubber
In, also it is the characteristic especially with excellent heat resistance.Therefore, by using these materials as having
Machine filler is filled in extinguishing arc insulant molded body, it is possible to obtain making extinguishing arc insulant
The effect that impact resistance when molded body is exposed in electric arc is effectively improved further.
Preferably (quality of organic filler is relative to extinguishing arc insulant for the filling rate of organic filler
The ratio of the gross mass of molded body) less than 30 mass %.Organic filler filling rate more than or
In the case of 30 mass %, the extinguishing arc elastic modelling quantity of insulant molded body reduces, can
Molded body is made to be deformed the former of grade to become the load of machinery when exposing relative to electric arc
Cause.
Extinguishing arc insulant molded body involved by present embodiment can also be containing described inorganic
Filler and described both organic fillers.
The situation of both inorganic filler and organic filler is contained at extinguishing arc insulant molded body
Under, raising effect, anti-flammability at the mechanical strength realized by inorganic filler and thermostability carry
On the basis of high effect etc., it is also possible to the impact strength simultaneously obtaining being realized by organic filler improves
Effect.
In such a situation it is preferred that the filling rate of organic filler is less than 30 mass %, inorganic filler with
And filling rate (the quality phase of the total of inorganic filler and organic filler of the total of organic filler
For the extinguishing arc ratio of the gross mass of insulant molded body) less than 50 mass %.Organic
In the case of the filling rate of filler is more than or equal to 30 mass %, extinguishing arc insulant molded body
Elastic modelling quantity reduce, mechanical load when exposing relative to electric arc can be become and make molded body
The Producing reason such as deformation.Additionally, in inorganic filler and the filling of the total of organic filler
Rate is more than or equal in the case of 50 mass %, and the amount of cross linked polymer is less than 50 mass %,
The generation amount of the decomposition gas exposed hence with electric arc and generate is not enough, the disconnection effect of electric arc
Reduce.
[embodiment]
Below, enumerate embodiment and the present invention is described in further detail, but the present invention is not limited to
This.
(embodiment 1～6, comparative example 1～4)
(material composition)
In Table 1, there is shown the extinguishing arc of embodiment 1～6 and comparative example 1～4 insulation material
The material composition of material molded body.
As the extinguishing arc insulant molded body in embodiment 1～6 and comparative example 1 and 4
Material, uses containing the cross linked polymer comprising the construction unit derived from crosslinking cycloolefin monomers
Resin.In Table 1, there is shown the containing ratio (quality of cross linked polymer of cross linked polymer
Relative to the extinguishing arc ratio of the gross mass of insulant molded body) and crosslinking cycloolefin list
(molal quantity of each monomer is relative to constituting crosslinking for mole (mole) mark of body and comonomer
The ratio of the total mole number of the monomer of polymer).
Specifically, in embodiment 1,2,4,5,6 and comparative example 1 and 4, as
For forming the vinyl monomer of cross linked polymer, only use the dicyclo as crosslinking ring vinyl monomer
Pentadiene.On the other hand, in embodiment 3, as the alkenes for forming cross linked polymer
Monomer, uses the dicyclopentadiene as crosslinking ring vinyl monomer and the ring as comonomer
The mixture of butylene.
Additionally, in embodiment 1～6 and comparative example 1 and 4, as the polymerization of vinyl monomer
Polymerization catalyst in course of reaction, uses using tungsten hexachloride, as the diethyl chlorine of reducing agent
The catalyst system changing aluminum (diethyl aluminum chloride) combination and obtain.
The extinguishing arc insulant molded body of comparative example 2 uses high density poly propylene as main constituent
(" サ Application テ ッ Network " (SUNTECH) (registered trade mark)-HD J300 " Asahi Chemical Industry ケ
ミ カ Le ズ " (CHEMICALS) (strain) system).High density poly propylene is to represent thermoplastic
The one of the vistanex of property, does not have aromatic rings in its molecular configuration.
The extinguishing arc of comparative example 3 insulant molded body uses first rank (RESOL) as main constituent
Type phenolic aldehyde (PHENOL) resin (" ス ミ ラ イ ト レ ジ Application " (SUMILITE-RESIN)
(registered trade mark) PR-51107 " Sumitomo ベ Network ラ イ ト " (BAKELITE) (strain)
System).Resol type phenol resin is the one of thermosetting resin, has virtue in its molecular configuration
Fragrant ring.
Embodiment 2～4 and the extinguishing arc of comparative example 1～3 with in insulant molded body, fill out
Fill acicular titanium oxide (aluminium hydroxide item for disposal: FTL-110 " stone is former " (strain) system)
As inorganic filler.The use level (loading) of inorganic filler is relative to extinguishing arc insulant
The ratio of the constituent material entirety of molded body is as shown in table 1.
At embodiment 5, extinguishing arc filling ethylene, propylene in insulant molded body of comparative example 4
Rubber is as organic filler.The filling rate of organic filler is as shown in table 1.
In the extinguishing arc of embodiment 6 with in insulant molded body, fill aluminium hydroxide as inorganic
Filler, fills ethylene-propylene rubber as organic filler.The filling rate of inorganic filler and organic
The filling rate of filler is as shown in table 1.
(manufacture method)
In embodiment 1, to comprising dicyclopentadiene (bridging property vinyl monomer) and polymerization
After the mixture stirring of catalyst, inject in mould, and at 150 DEG C, implement the heating of 2 hours
Cured.Thus, obtain the crosslinking by having from the derivative construction unit of dicyclopentadiene to gather
Longitudinal 40mm that compound (polydicyclopentadiene) is constituted, horizontal 60mm, thickness 1mm
Extinguishing arc insulant molded body.
It addition, in the structure of cross linked polymer, comprise as shown in following general expression (4)
The repetitive construct of the construction unit derivative from dicyclopentadiene.It addition, in general expression (4)
" * " symbol represent atomic linkage (atomic bonding).
[chemical formula 4]
In embodiment 2～4 and comparative example 1, to comprising dicyclopentadiene (bridging property alkene
Class monomer), after the mixture stirring of polymerization catalyst and acicular titanium oxide (inorganic filler),
In injection mould, and at 150 DEG C, implement the process that is heating and curing of 2 hours.Thus, wrapped
Containing the cross linked polymer having from the derivative construction unit of dicyclopentadiene, longitudinal 40mm, laterally
60mm, the extinguishing arc of thickness 1mm insulant molded body.
In embodiment 5, comparative example 4, to comprising dicyclopentadiene (bridging property alkenes list
Body), after the mixture stirring of polymerization catalyst and ethylene propylene rubber (organic filler), note
Enter in mould, and at 150 DEG C, implement the process that is heating and curing of 2 hours.Thus, comprised
There is the cross linked polymer from the derivative construction unit of dicyclopentadiene, longitudinal 40mm, laterally
60mm, the extinguishing arc of thickness 0.8mm insulant molded body.
In embodiment 6, to comprising dicyclopentadiene (bridging property vinyl monomer), polymerization
Mixing of catalyst, aluminium hydroxide (inorganic filler) and ethylene propylene rubber (organic filler)
After compound stirring, inject in mould, and at 150 DEG C, implement the process that is heating and curing of 2 hours.
Thus, obtain comprising the cross linked polymer with the construction unit derived from dicyclopentadiene, vertical
To 40mm, horizontal 60mm, the extinguishing arc insulant molded body of thickness 0.8mm.
In comparative example 2, to high density poly propylene and the mixing granulating of acicular titanium oxide filler
After, implement injection mo(u)lding, obtain longitudinal 40mm, horizontal 60mm, the extinguishing arc of thickness 1mm
Use insulant molded body.
In comparative example 3, to resol type phenol resin and acicular titanium oxide filler mix and blend
After, inject in mould, in mould, at 150 DEG C, carry out the process that is heating and curing of 2 hours,
Thus obtain the extinguishing arc insulant molding of longitudinal 40mm, horizontal 60mm, thickness 1mm
Body.
In such circuit-breaker as shown in Figure 3 and 4, arrange and utilize above-mentioned enforcement
Example 1～6 and the extinguishing arc insulant of thickness 1mm or 0.8mm that obtains of comparative example 1～4
Molded body, and carried out overload open test and short circuit open test.Overload disconnects examination
Test and the content of short circuit open test is as follows.
(overload open test)
This test is to the circuit-breaker being provided with extinguishing arc insulant molded body, in Guan Bi
The electric current of 6 times of the rated current that is energized under state is (such as in the situation of 100A circuit-breaker
Under be 600A), making moving contact 2 and fixed contact 4 be separated into contact separation distance L (can
Distance between movable contact 2 and fixed contact 4) it is 15～25mm, and make arc current produce,
So that arc current disconnect successfully stipulated number as qualified test.It addition, as this examination
The condition tested, is under conditions of AC690V/600A, if successfully disconnected 12 times, then closes
Lattice.
(short circuit open test)
This test be in closed state energising 10～100kA overcurrent and make movable contact
Separate, make arc current produce, with the disconnection success stipulated number of this arc current and do not send out
Raw damage is as qualified test.It addition, the condition tested as this, with at AC440V/50kA
Under conditions of, successfully disconnect 3 times, and at extinguishing arc insulant molded body 5 and circuit
The framework 18 of chopper does not deforms or damages as qualified.
[table 1]
Embodiment 1～6 is in overload test and short circuit both open tests, it is achieved that rule
Determine the disconnection of number of times, do not confirm the extinguishing arc insulant molded body after short circuit open test
And the deformation of the framework of circuit-breaker or damage.Additionally, disappearing after short circuit open test
In the arc observed result with insulant molded body surface, do not observe the free carbon analysis to surface
Go out.
In embodiment 5 and 6, due to what ethylene propylene rubber was filled as organic filler
Effect, and extinguishing arc improves by the impact strength of insulant molded body, even if therefore by molded body
Thickness of slab thin plate turn to 0.8mm, still confirm less than test after extinguishing arc insulant molding
The deformation of body, damage.
On the other hand, in comparative example 1～4, all not up to specify in any one is tested
Disconnection times, and after short circuit open test, confirm the deformation of extinguishing arc insulant molded body
Or damage, it is impossible to meet the acceptance condition of regulation.
Comparative example 1 is in overload test and short circuit both open tests, it is impossible to meet rule
Fixed disconnection times.Extinguishing arc insulant after the overload open test of comparative example 1 is become
The result that type body carries out observing is, has arrived exposing of inorganic filler at its surface observation.In contrast
In example 1, the mass ratio occupied due to the cross linked polymer in extinguishing arc insulant molded body
Less than 50%, it can be considered that the resinous principle producing source becoming decomposition gas is not enough, no
The disconnection of stipulated number can be realized.
Comparative example 2, after short circuit open test, confirms the change of extinguishing arc insulant molded body
Shape, short circuit open test is defective.In comparative example 2, as extinguishing arc insulant molding
The main constituent of body, uses and shows thermoplastic high density poly propylene, it can be considered that constitute
The extinguishing arc insulant molded body of explosion chamber becomes softening owing to the temperature of near contacts rises
State, and the electric arc heat energy produced due to disconnection action afterwards, press in explosion chamber
Rising, extinguishing arc insulant molded body deforms.
Comparative example 3 is in overload test and short circuit both open tests, it is impossible to meet rule
Fixed disconnection times.Extinguishing arc insulant molding to the comparative example 3 after short circuit open test
The result that body carries out observing is, has confirmed the free carbon of graphite (graphite) shape on surface
Separate out.In comparative example 3, from constituting extinguishing arc with the resol type phenolic aldehyde tree of insulant molded body
The carbon atom that aromatic rings in fat structure derives is when the thermal decomposition caused by electric arc, as free
Carbon and surface separate out, formed creeping distance, thus it is believed that hamper electric arc disconnect.
Comparative example 4 has confirmed the change of extinguishing arc insulant molded body after short circuit open test
Shape, short circuit open test is defective.In comparative example 4, to extinguishing arc insulant molded body
With filling rate filling ethylene propylene rubber (organic filler) of 35 mass %, thus the bullet of material
Property modulus reduce, it can be considered that the intrinsic pressure electric arc owing to producing because of disconnection action in explosion chamber
Heat energy and when rising, extinguishing arc insulant molded body is deformed.
Knowable to above result, the extinguishing arc of present invention insulant molded body thermostability, strong
Degree and electric arc arc performance are excellent.In accordance with the invention it is possible to merely with simple heat treatment work
Skill obtains extinguishing arc insulant molded body as above, therefore, it is possible to provide disconnection at a low price
The circuit-breaker of excellent performance.
Embodiments of the present invention are illustrated, it will be understood that embodiment party of disclosure
Formula is to illustrate and nonrestrictive in all respects.The scope of the present invention is intended to encompass to be wanted by right
Ask the content being equal to claims represented by book and all of change in scope.
Claims (7)
1. an extinguishing arc insulant molded body, it is characterised in that
Containing more than or equal to the cross linked polymer of 50 mass %, this cross linked polymer comprise from
The construction unit that at least one vinyl monomer is derivative,
Described vinyl monomer contains at least one crosslinking ring vinyl monomer, this crosslinking cyclenes class list
Body is among the aliphatic compound containing the carbocyclic ring structure with double bond between carbon atom, is dividing
Son structure has the compound of double bond between multiple carbon atom.
Extinguishing arc insulant molded body the most according to claim 1, wherein,
Described crosslinking ring vinyl monomer, comprises at least one Norbornene derivative.
Extinguishing arc insulant molded body the most according to claim 2, wherein,
Described Norbornene derivative is dicyclopentadiene.
Extinguishing arc insulant molded body the most according to any one of claim 1 to 3,
Possibly together with at least one inorganic filler,
Described inorganic filler is by glass fibre, inorganic mineral, ceramic fibre and metal hydrogen-oxygen
At least one of compound is constituted.
Extinguishing arc insulant molded body the most according to any one of claim 1 to 3,
Possibly together with organic filler,
Described organic filler is made up of at least one fat hydrocarbon rubber,
The filling rate of described organic filler is less than 30 mass %.
Extinguishing arc insulant molded body the most according to claim 5, wherein,
Described fat hydrocarbon rubber selects from ethylene propylene rubber and ethylene propylene diene rubber
Select.
7. a circuit-breaker, it has:
Fixed contact therefor, it has fixed contact；Movable contact, it has moving contact；
Open-close mechanism section, it makes described movable contact action；And extinguishing arc insulant molded body,
It is configured at generation when can be exposed to described fixed contact and the separation of described moving contact
Position in electric arc,
In this circuit-breaker,
Described extinguishing arc insulant molded body is the extinguishing arc insulation material described in claim 1
Material molded body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-066337 | 2015-03-27 | ||
| JP2015066337 | 2015-03-27 | ||
| JP2015232732A JP6509099B2 (en) | 2015-03-27 | 2015-11-30 | Insulating material molding for arc extinguishing, and circuit breaker comprising the same |
| JP2015-232732 | 2015-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106009456A true CN106009456A (en) | 2016-10-12 |
Family
ID=57081298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610178365.2A Pending CN106009456A (en) | 2015-03-27 | 2016-03-25 | Insulation material molded body for arc extinction and circuit breaker comprising same |
Country Status (1)
| Country | Link |
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| CN (1) | CN106009456A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034624A (en) * | 2009-09-28 | 2011-04-27 | 三菱电机株式会社 | Molded insulating object for arc suppression and circuit breaker employing the same |
| CN102737920A (en) * | 2011-04-01 | 2012-10-17 | 三菱电机株式会社 | Insulating material molding body for arc extinction and circuit breaker using same |
| CN103367069A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Resin-molded component for arc extinction and loop breaker |
| CN103890237A (en) * | 2011-09-14 | 2014-06-25 | 马特里亚公司 | Improved electrolytic cell covers comprising a resin composition polymerized with a group 8 olefin metathesis catalyst |
-
2016
- 2016-03-25 CN CN201610178365.2A patent/CN106009456A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034624A (en) * | 2009-09-28 | 2011-04-27 | 三菱电机株式会社 | Molded insulating object for arc suppression and circuit breaker employing the same |
| CN102737920A (en) * | 2011-04-01 | 2012-10-17 | 三菱电机株式会社 | Insulating material molding body for arc extinction and circuit breaker using same |
| CN103890237A (en) * | 2011-09-14 | 2014-06-25 | 马特里亚公司 | Improved electrolytic cell covers comprising a resin composition polymerized with a group 8 olefin metathesis catalyst |
| CN103367069A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Resin-molded component for arc extinction and loop breaker |
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