CN109545615A - Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof - Google Patents
Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof Download PDFInfo
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- CN109545615A CN109545615A CN201811361313.4A CN201811361313A CN109545615A CN 109545615 A CN109545615 A CN 109545615A CN 201811361313 A CN201811361313 A CN 201811361313A CN 109545615 A CN109545615 A CN 109545615A
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- ceramic
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- inner chamber
- chamber body
- glue
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Abstract
The invention discloses a kind of vacuum interrupters, vacuum direct-current high-voltage relay and preparation method thereof, vacuum interrupter, including ceramic inner chamber body and for surrounding ceramic inner chamber body and with the plastic shell body of high temperature resistant and high-intensity performance, sealed between ceramic inner chamber body and plastic shell body using ceramic glue.Vacuum interrupter of the invention, the internal layer of arc-chutes cavity is done by ceramics to solve the requirement of arc-suppression function, again by high-intensitive plastics come the shell of fixation arc-chutes cavity, in order to by the shell of plastic material come with the materials accessory such as other metals, it is sealed again using ceramic glue, reaches vacuum sealing effect.
Description
Technical field
The present invention relates to direct-current high-voltage relay fields, particularly, are related to a kind of vacuum interrupter.In addition, the present invention is also
It is related to a kind of vacuum direct-current high-voltage relay and preparation method including above-mentioned vacuum interrupter.
Background technique
Existing vacuum interrupter making material mainly has using glass or ceramics, using glass as airtight vacuum shell and
Metal adds corresponding temperature (600 DEG C~1700 DEG C of the range of choice of temperature) by solder, keeps the electricity for being welded into a sealing true
Empty arc-chutes.And it is widely applied in every field model is raised.But since the intensity of sealing-in is low and the spy of glass itself
Point brittleness is big, once the impact Integral-crushing that is collided, is gradually substituted at this stage by ceramic shell.
Ceramic vacuum arc-chutes, it is most that closed vacuum extinction is processed into using the metallized nickel plating welding of high alumina ceramic
Room, to meet the electromechanical properties and thermal stability of each cavity.It will be with the active molybdenum manganese Metal of progress on metal sealing face by ceramics
The deep processing of change applies in ceramic plane and stamps molybdenum manganese paste, then carries out one into molybdenum filament hydrogen furnace (temperature is 1150 DEG C~1650 DEG C)
The sintering of minor metal molybdenum manganese.The molybdenum manganese layer sintered is carried out upper nickel again, it can be using plating.Chemical plating.Ion vapor deposition.Coating
Nickel etc. enters nickel furnace (temperature is 750 DEG C~1050 DEG C) progress second metallization and is also nickel；Finally again the qualified pottery of metallization
Porcelain products and metal weld the vacuum interrupter for forming sealing jointly.
Ceramic vacuum arc-chutes, due to upper nickel and the production model of welding manufacture technique, there are many shortcomings:
(1) manufacturing cycle is long: ceramic processing, cleaning burn it is dirty, then apply print molybdenum manganese paste (preceding to prepare with binder, diluent,
Dispersing agent, levelling brightener etc. and the match grindings paste making agent such as molybdenum/manganese/porcelain powder are stand-by), it once metallizes by molybdenum filament hydrogen road furnace
It is sintered molybdenum manganese layer.Second metallization is carried out nickel upper on the molybdenum manganese layer of sintering, then through nickel furnace.The good ceramics of nickelization add solder
Into vacuum brazing stove, it is welded into the low-vacuum load-tripping device of diaphragm type structure sealing；Or it is welded into exhaust structure, pass through exhaust pipe
In vacuum evacuation platform degasification, reach vacuum requirement.Production cycle is longer, and production efficiency reduces.(2) production technology is cumbersome, by
In cumbersome, uncontrollable changing factor is more during process implementing, can generate unexpected ill effect, causes to give birth to
The qualification rate of semi-finished product and final products during production is lower.(3) production cost is higher, because the production cycle is long, process work
Skill is more, used human resources higher cost greatly；Use material and raw material processing and work die clamper it is more and
Cause higher cost；Highly energy-consuming increases cost in electric power, fuel gas, water etc..(4) nickel technique on, and to paste
Second metallization burns nickel；The preparation process of molybdenum manganese paste, and when being sintered to the primary metallization of molybdenum manganese paste, that is discharged is useless
Material, waste liquid, exhaust gas etc. pollute environment there are still there is a certain proportion of pollutant discharging.
Summary of the invention
The present invention provides a kind of vacuum interrupters, vacuum direct-current high-voltage relay and preparation method thereof, to solve tradition
The technical issues of cost of raw material of ceramic vacuum arc-chutes is high, and production technology is cumbersome, pollutes environment.
The technical solution adopted by the invention is as follows:
A kind of vacuum interrupter, including ceramic inner chamber body and for surround ceramic inner chamber body and have high temperature resistant and high intensity
The plastic shell body of performance is sealed between ceramic inner chamber body and plastic shell body using ceramic glue.
Further, plastic shell body is using one or more of PC, PPS, PEEK, ABS, PES or PVC and ceramic powder
End and glass fibre are prepared；Plastic shell body temperature resistant to high temperature is 300 DEG C~500 DEG C.
Further, the mass ratio of PPS, ceramic powders and glass fibre is 75~85 ︰, 5~10 ︰ 10~15.
Further, ceramic inner chamber body is prepared using aluminium oxide ceramics；Aluminium oxide ceramics include: in parts by mass,
Aluminium oxide 90~95, high territory 1~5, calcium carbonate 1~5, silica 1~3, magnesia 0.5~2.
Further, ceramic glue has high temperature resistance, and temperature resistant to high temperature is 300 DEG C~1700 DEG C；Ceramic glue includes
Colloid and curing agent.
Further, colloid includes: epoxy resin 45~80, organosilicon 0~9 in parts by mass, and glass fiber powder 3~
12, glass fiber powder 42~52；The mass ratio of curing agent and colloid is 1~2 ︰ 4.
According to another aspect of the present invention, a kind of vacuum direct-current high-voltage relay, including above-mentioned vacuum extinction are additionally provided
Room.
According to another aspect of the present invention, a kind of preparation method of vacuum direct-current high-voltage relay is additionally provided, including with
Lower step: modulation ceramic glue, it is spare；By coated ceramic glue at conducting rod step, it is inserted into the stomidium of ceramic inner chamber body, stands
Afterwards, contact is loaded on conducting rod, by steady arm insertion end coated ceramic glue, is inserted into the centre bore of ceramic inner chamber body, is loaded onto
Grip block after standing, loads onto spring and conducting block on steady arm, after ceramic inner cavity external surface coated ceramic glue, standing,
It vacuumizes, seals；Electromagnetic inductor is packed into the plastic shell body bottom of opening, ceramic inner chamber body and electromagnetic inductor are matched
It closes, ceramic inner chamber body loading electromagnetic inductor is matched into upper end, ceramics will be filled between ceramic inner chamber body and plastic shell body
Glue covers plastic shell body end lid, and coated ceramic glue, obtains vacuum direct-current high-voltage relay.
Further, the time of standing is 12h~15h.
Further, vacuumizing rear vacuum degree is 1 × 10-10Pa.m3/ S~1 × 10-11Pa.m3/S。
The invention has the following advantages:
Vacuum interrupter of the invention does the internal layer of arc-chutes cavity by ceramics to solve the requirement of arc-suppression function, then by
High-intensitive plastics carry out the shell of fixation arc-chutes cavity, in order to be matched by the shell of plastic material with materials such as other metals
Part, then sealed using ceramic glue, reach vacuum sealing effect.Vacuum interrupter is combined by plastics and ceramic double-layer.Inner layer
Liner is served as by ceramics and is constituted, and using the high temperature resistant of ceramics, height insulation, thermal stability is good, the advantage of high temperature high voltage resistant impact etc.,
Play the role of good arc extinguishing；Outer layer is high by the good high temperature resistant of inner layer ceramics using energy high temperature resistant and high-intensitive plastics
Insulation performance and the good sealing performance of ceramic glue, the environment temperature of outer layer plastic are substantially less than the environment temperature of inner layer ceramics
Degree, it is ensured that the stability of plastic shell body, while the toughness and sealability that plastics itself have, realization closely connect it
Its accessory, and can arrange and (remove) vacuum interrupter that gas reaches certain vacuum degree requirement.
Vacuum interrupter of the invention provides one kind and does not need ceramic metallization and be made up with metal of solder welding
Vacuum interrupter acted on by the gluing of ceramic glue, it is true that ceramics and plastics are reached sealing but by plastics and Ceramic Composite
The requirement of reciprocal of duty cycle and intensity.Vacuum interrupter has vacuum secrecy height, high insulating property, high pressure resistant high current Arcing heat
Impact, high-intensitive, simple in production process operation, production effect is high, and lower production costs are suitble to large-scale production, high-quality performance
Stablize.
Vacuum direct-current high-voltage relay of the invention had both used ceramics and the advantages of plastics using vacuum interrupter, logical
The sealing of ceramic glue is crossed, and mutually makes up respective shortcoming, ceramics and plastics are organically combined into vacuum interrupter, are shortened
The production cycle of original production vacuum DC relay, production efficiency is made to improve several times；Due to the change of production technology, greatly press
Contracted cost；Simultaneously as vacuum direct-current high-voltage relay processing technology is easy, operates conveniently, improve production efficiency.Vacuum
The preparation method of direct-current high-voltage relay, does not use original ceramic metallization, nickel in cleaning, and the techniques such as welding subtract significantly
Chemical emission, waste liquid, the discharge such as waste material, better protection zone ring mirror ecology and ring mirror health are lacked.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the vacuum direct-current high-voltage relay schematic diagram of the preferred embodiment of the present invention.
Description of symbols:
1, ceramic inner chamber body；2, plastic shell body；3, conducting rod；4, head is tightly touched；5, steady arm；6, spring；7, conducting block；
8, electromagnetic inductor.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the vacuum direct-current high-voltage relay schematic diagram of the preferred embodiment of the present invention.
As shown in Figure 1, the vacuum interrupter of the present embodiment, including ceramic inner chamber body 1 and for surrounding ceramic inner chamber body 1 simultaneously
Plastic shell body 2 with high temperature resistant and high-intensity performance, it is close using ceramic glue between ceramic inner chamber body 1 and plastic shell body 2
Envelope.Vacuum interrupter of the invention does the internal layer of arc-chutes cavity by ceramics to solve the requirement of arc-suppression function, then by high intensity
Plastics carry out the shell of fixation arc-chutes cavity, in order to by the shell of plastic material come with the materials accessory such as other metals, then
It is sealed using ceramic glue, reaches vacuum sealing effect.Vacuum interrupter is combined by plastics and ceramic double-layer.Inner layer liner by
Ceramics serve as composition, and using the high temperature resistant of ceramics, height insulation, thermal stability is good, and the advantage of high temperature high voltage resistant impact etc. plays good
Good arc extinguishing effect；Outer layer passes through the good high temperature resistant of inner layer ceramics, high-insulativity using energy high temperature resistant and high-intensitive plastics
Energy and the good sealing performance of ceramic glue, the environment temperature of outer layer plastic are substantially less than the environment temperature of inner layer ceramics, it is ensured that
The stability of plastic shell body 2, while toughness and sealability that plastics itself have, realization closely connect other match
Part, and can arrange and (remove) vacuum interrupter that gas reaches certain vacuum degree requirement.
Above-mentioned vacuum interrupter, provide one kind do not need ceramic metallization and with metal solder welding made of very
Empty arc-chutes, but by plastics and Ceramic Composite, it is acted on by the gluing of ceramic glue, ceramics and plastics is reached into sealing vacuum degree
With the requirement of intensity.Vacuum interrupter has vacuum secrecy high, and high insulating property, high pressure resistant high current Arcing heat is rushed
It hits, high-intensitive, simple in production process operation, production effect is high, and lower production costs are suitble to large-scale production, and high-quality performance is steady
It is fixed.
In the present embodiment, plastic shell body 2 is using one or more of PC, PPS, PEEK, ABS, PES or PVC and pottery
Porcelain powder and glass fibre are prepared.The temperature resistant to high temperature of plastic shell body 2 is 300 DEG C~500 DEG C.It is single to use plastics material
Material makees the arc extinguishing room housing of relay: in use, since the sparking of electric current pressure difference meeting electric arc is directly to plastics, generating moment
High temperature (is up to 1000 degree or more) sometimes, softens plastics material often in this way, in a short time aging, service life shortens.Together
Shi Gaowen makes frosting tungsten carbide/conductive, and gas leakage is accelerated to make vacuum failure, to sparking of discharging outside arc-chutes cavity, it is possible to cause
Fire.Plastic shell body 2 of the invention is using having a high temperature resistant and high-intensitive plastic material, and plastics inherently have
Toughness and sealability may be implemented closely to connect other accessories, and can arrange and (remove) gas and reach certain vacuum degree requirement
Vacuum interrupter.Therefore plastic shell body 2, will not only have traditional insulation and intensity effect, also to have sealing arc-chutes
The booster action that condition of high vacuum degree requires；Rather than it is traditional individually seal, and height is not achieved in traditional plastic casing
The requirement of vacuum degree.By the good high temperature resistant of inner layer ceramics, high insulating property and the good sealing performance of ceramic glue, outside
The environment temperature of layer plastics is substantially less than the environment temperature of inner layer ceramics, it is ensured that the stability of plastic shell body 2.Preferably,
The mass ratio of PPS, ceramic powders and glass fibre are 75~85 ︰, 5~10 ︰ 10~15.
In the present embodiment, ceramic inner chamber body 1 is prepared using aluminium oxide ceramics.It is single metallized using ceramics, on
Nickel there is a problem of more during welding procedure is manufactured.However, above-mentioned ceramics inner chamber body 1 uses aluminium oxide ceramics,
With high temperature resistant, height insulation, thermal stability is good, and the advantage of high temperature high voltage resistant impact etc. plays good in vacuum extinction room
Arc extinguishing effect.Preferably, aluminium oxide ceramics includes: aluminium oxide 90~95 in parts by mass, high territory 1~5, calcium carbonate 1~5,
Silica 1~3, magnesia 0.5~2.Specific processing method are as follows: each material goal grinding machine, which is weighed, by said ratio dry grinds, material
Ball ratio is 1 ︰ 1.5~2, and ball milling 30h~40h discharging obtains ceramic mixed powder, weighs wax, wax is than the mass percent for material
11%~22%, into heated in pulp grinder, and temperature control is at 100 DEG C~120 DEG C, and after wax is completely melt, it is mixed to add ceramics
Powder is closed, stirring 4h~10h is added in hot injection moulding machine after mixing evenly, keeps the temperature 60 DEG C~80 DEG C, empty with mold and high pressure
Gas casting, pressure demould after cooling in 0.6MPa or more.Biscuiting dress alms bowl is sent to dewax through 1000 DEG C~1200 DEG C degree, then
1650 DEG C~1700 DEG C sinter porcelain into.It examines qualified stand-by.
In the present embodiment, ceramic glue has high temperature resistance, and temperature resistant to high temperature is 300 DEG C~1700 DEG C；Ceramic glue packet
Include colloid and curing agent.Organosilicon is selected the number of additional amount by the requirement of toughening, and can be with the better phase of epoxy resin
Melt.Glass fiber powder can increase toughness and intensity, under the high temperature conditions, be interconnected with ceramics；The additive amount shadow of ceramic powder
The height of colloid bearing temperature is rung, i.e. the bigger bearing temperature of ceramic powder accounting is higher.Preferably, colloid include: in parts by mass,
Epoxy resin 45~80, organosilicon 0~9, glass fiber powder 3~12, glass fiber powder 42~52；The quality of curing agent and colloid
Than for 1~2 ︰ 4.Above-mentioned curing agent additive amount is more, and curing time is shorter, and brittleness is bigger；However, additional amount is very few, will so that
Colloid is in soft state for a long time, and easily-deformable intensity is low, therefore the mass ratio of curing agent and colloid is 1~2 ︰ 4.
According to another aspect of the present invention, a kind of vacuum direct-current high-voltage relay, including above-mentioned vacuum extinction are additionally provided
Room.Vacuum direct-current high-voltage relay of the invention had both been used ceramics and the advantages of plastics, had been passed through pottery using vacuum interrupter
The sealing of porcelain cement, and respective shortcoming is mutually made up, ceramics and plastics are organically combined into vacuum interrupter, are shortened primary
The production cycle for producing vacuum DC relay, production efficiency is made to improve several times；Due to the change of production technology, greatly have compressed
Cost；Simultaneously as vacuum direct-current high-voltage relay processing technology is easy, operates conveniently, improve production efficiency.
According to another aspect of the present invention, a kind of preparation method of vacuum direct-current high-voltage relay is additionally provided, including with
Lower step: modulation ceramic glue, it is spare；By coated ceramic glue at 3 step of conducting rod, it is inserted into the stomidium of ceramic inner chamber body 1, stands
Afterwards, contact 4 is loaded on conducting rod 3, and 5 insertion end coated ceramic glue of steady arm is inserted into the centre bore of ceramic inner chamber body 1,
It loads onto grip block, after standing, spring 6 and conducting block 7 is loaded on steady arm 5, in ceramic 1 outer surface coated ceramic of inner chamber body
Glue after standing, vacuumizes, and seals；Electromagnetic inductor 8 is packed into 2 bottom of plastic shell body of opening, by ceramic inner chamber body 1 with
Electromagnetic inductor 8 matches, and ceramic inner chamber body 1 loading electromagnetic inductor 8 is matched upper end, by ceramic inner chamber body 1 and plastics
Ceramic glue is filled between outer housing 2, covers 2 end cap of plastic shell body, and coated ceramic glue, obtains vacuum high direct voltage relay
Device.The preparation method of vacuum direct-current high-voltage relay of the invention does not use original ceramic metallization, nickel in cleaning, weldering
It the techniques such as connects, greatly reduces chemical emission, waste liquid, the discharge such as waste material, better protection zone ring mirror ecology and ring mirror health.
The structure of vacuum direct-current high-voltage relay is as shown in Figure 1.
In the present embodiment, the time of standing is 12h~15h.Above-mentioned time of repose is 12h~15h, so that ceramic glue and pottery
Porcelain inner chamber body 1 and plastic shell body 2 come into full contact with, and increase leakproofness.
In the present embodiment, vacuumizing rear vacuum degree is 1 × 10-10Pa.m3/ S~1 × 10-11Pa.m3/S.Above-mentioned vacuum direct current
High-voltage relay is placed in contact in the vacuum extinction room for being pumped into high vacuum, using vacuum as the relay of arc extinguishing and dielectric
Device.Vacuum has ideal insulation performance, does not have oxygen in vacuum, so not aoxidizing in use, was using
There is small and stable contact resistance in journey.Vacuum has good arc extinction performance, and electric arc in a vacuum is easy diffusion, is not easy
The abrasion of contact is caused, long service life being capable of bringing onto load switch.Therefore, vacuum direct-current high-voltage relay has resistance to breakdown potential
Pressure is high, and blow-out is fast, and drop-out current is big, light-weight, the feature of service life length.Also, dielectric strength is high, specified carrying electric current and conversion
Electric current is big, and contact contact resistance is small, and the operation is stable, noise is low, and interpolar distribution capacity and inductance are small, and contact is opened away from small, encourages sulphur function
Rate is low, and it is fast to cut-off speed, contact sealing, and not by the air pressure of ring mirror around, moisture, the influence of sandy soil or explosion gas is adapted to
It works in severe ring mirror.
Embodiment
Embodiment 1
Vacuum interrupter
In parts by mass, aluminium oxide 93, high territory 1.95, calcium carbonate 3.25, silica 1 .28, magnesia 0.7 weigh
Each material goal grinding machine dry grinding, material ball ratio are 1 ︰ 1.8, and ball milling 36h discharging obtains ceramic mixed powder, weigh wax, and wax ratio is material
Mass percent 15%, into heated in pulp grinder, and temperature control is at 1080 DEG C, and after wax is completely melt, it is mixed to add ceramics
Powder is closed, stirring 6h is added in hot injection moulding machine after mixing evenly, 80 DEG C are kept the temperature, with mold and pressure-air casting,
Pressure demoulds after cooling in 0.6MPa or more.It send biscuiting dress alms bowl to dewax through 1050 DEG C of degree, then sinters porcelain at 1650 DEG C.It examines
Qualified stand-by ceramic inner chamber body 1.
In parts by mass, PPS75, ceramic powders 10, glass fibre 15 weigh each material and put into (Dongguan, Guangdong LN--
16L type) in mixer, kept for 400 DEG C of temperature, mixing 4h, after mixing evenly, put into (J Co., Ltd.'s i30ADS type) injection molding
In molding machine, kept for 400 DEG C of temperature, cooling manufactured goods examine qualified stand-by plastic shell body 2.
In parts by mass, epoxy resin 60, organosilicon 2, glass fiber powder 8, glass fiber powder 52 are uniformly mixed, and obtain glue
Body adds curing agent 40 and is uniformly mixed, obtains ceramic glue, for use.
Ceramic inner chamber body 1 is packed into plastic shell body 2, in addition hinge armature mechanism and cavity are locked, completes moving contact machine
The installation of structure part installs exit static contact in the other end, between ceramic inner chamber body 1, plastic shell body 2 and associated components etc.
Connecing for formation arc-chutes cavity is met, crevice place is sealed using ceramic glue, then carries out vacuumizing 0.6 × 10-10Pa.m3/ S, shape
At vacuum interrupter.
Vacuum direct-current high-voltage relay
Ceramic glue is modulated, it is spare；Coated ceramic glue at 3 step of conducting rod is inserted into the stomidium of ceramic inner chamber body 1, it is quiet
It postpones, contact 4 is loaded on conducting rod 3, by 5 insertion end coated ceramic glue of steady arm, be inserted into the centre bore of ceramic inner chamber body 1
It is interior, it loads onto grip block, after standing, spring 6 and conducting block 7 is loaded on steady arm 5, coat and make pottery in ceramic 1 outer surface of inner chamber body
Porcelain cement after standing, vacuumizes 0.6 × 10-10Pa.m3/ S, sealing；Electromagnetic inductor 8 is packed into 2 bottom of plastic shell body of opening
Portion matches ceramic inner chamber body 1 with electromagnetic inductor 8, and ceramic inner chamber body 1 loading electromagnetic inductor 8 is matched upper end, will
Ceramic glue is filled between ceramic inner chamber body 1 and plastic shell body 2, covers 2 end cap of plastic shell body, and coated ceramic glue, is obtained
Vacuum direct-current high-voltage relay.
Embodiment 2
Vacuum interrupter
In parts by mass, aluminium oxide 92, high territory 2.5, calcium carbonate 3, silica 2, magnesia 0.5 weigh each material
The dry grinding of goal grinding machine, material ball ratio are 1 ︰ 2, and ball milling 36h discharging obtains ceramic mixed powder, weigh wax, wax is than the quality hundred for material
The 18% of point ratio, into heated in pulp grinder, and temperature control after wax is completely melt, adds ceramic mixed powder, stirs at 1050 DEG C
6h is mixed, after mixing evenly, is added in hot injection moulding machine, keeps the temperature 80 DEG C, with mold and pressure-air casting, pressure exists
0.6MPa or more is demoulded after cooling.It send biscuiting dress alms bowl to dewax through 1100 DEG C of degree, then sinters porcelain at 1700 DEG C.Examine it is qualified to
Ceramic inner chamber body 1.
In parts by mass, PPS780, ceramic powders 15, glass fibre 15 weigh each material and put into (Dongguan, Guangdong LN--
16L type) in mixer, kept for 400 DEG C of temperature, mixing 4h, after mixing evenly, puts into mold and squeeze injection moulding, keep temperature
250 DEG C of degree, cooling and demolding manufactured goods examine qualified stand-by plastic shell body 2.
In parts by mass, epoxy resin 48, organosilicon 4, glass fiber powder 6, glass fiber powder 42 are uniformly mixed, and obtain glue
Body adds curing agent 40 and is uniformly mixed, obtains ceramic glue, for use.
Ceramic inner chamber body 1 is packed into plastic shell body 2, in addition hinge armature mechanism and cavity are locked, completes moving contact machine
The installation of structure part installs exit static contact in the other end, between ceramic inner chamber body 1, plastic shell body 2 and associated components etc.
Connecing for formation arc-chutes cavity is met, crevice place is sealed using ceramic glue, then carries out vacuumizing 0.5 × 10-10Pa.m3/ S, shape
At vacuum interrupter.
Vacuum direct-current high-voltage relay
Ceramic glue is modulated, it is spare；Coated ceramic glue at 3 step of conducting rod is inserted into the stomidium of ceramic inner chamber body 1, it is quiet
It postpones, contact 4 is loaded on conducting rod 3, by 5 insertion end coated ceramic glue of steady arm, be inserted into the centre bore of ceramic inner chamber body 1
It is interior, it loads onto grip block, after standing, spring 6 and conducting block 7 is loaded on steady arm 5, coat and make pottery in ceramic 1 outer surface of inner chamber body
Porcelain cement after standing, vacuumizes 0.5 × 10-10Pa.m3/ S, sealing；Electromagnetic inductor 8 is packed into 2 bottom of plastic shell body of opening
Portion matches ceramic inner chamber body 1 with electromagnetic inductor 8, and ceramic inner chamber body 1 loading electromagnetic inductor 8 is matched upper end, will
Ceramic glue is filled between ceramic inner chamber body 1 and plastic shell body 2, covers 2 end cap of plastic shell body, and coated ceramic glue, is obtained
Vacuum direct-current high-voltage relay.
Vacuum direct-current high-voltage relay in above-described embodiment 1 and embodiment 2 stands storage 1 month at room temperature, to the 7th
The vacuum degree process of it and the 30th day measures, and measurement result indicates the vacuum degree point of the vacuum direct-current high-voltage relay of embodiment 1
It Wei 0.57 × 10-10Pa.m3/ S and 0.48 × 10-10Pa.m3/S；The vacuum degree of the vacuum direct-current high-voltage relay of embodiment 2 point
It Wei 0.46 × 10-10Pa.m3/ S and 0.47 × 10-10Pa.m3/ S illustrates that vacuum direct-current high-voltage relay has good stability, not by
Ambient environmental factors influence.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of vacuum interrupter, which is characterized in that
Including ceramic inner chamber body (1) and for surrounding the ceramic inner chamber body (1) and with the modeling of high temperature resistant and high-intensity performance
Expect outer housing (2), is sealed between the ceramics inner chamber body (1) and plastic shell body (2) using ceramic glue.
2. vacuum interrupter according to claim 1, which is characterized in that
The plastic shell body (2) is using one or more of PC, PPS, PEEK, ABS, PES or PVC and ceramic powders and glass
Glass fiber is prepared；
The plastic shell body (2) temperature resistant to high temperature is 300 DEG C~500 DEG C.
3. vacuum interrupter according to claim 1, which is characterized in that
The mass ratio of the PPS, ceramic powders and glass fibre are 75~85 ︰, 5~10 ︰ 10~15.
4. vacuum interrupter according to claim 1, which is characterized in that
The ceramics inner chamber body (1) is prepared using aluminium oxide ceramics；
The aluminium oxide ceramics includes: aluminium oxide 90~95 in parts by mass, high territory 1~5, calcium carbonate 1~5, silica
1~3, magnesia 0.5~2.
5. vacuum interrupter according to claim 1, which is characterized in that
The ceramic glue has high temperature resistance, and temperature resistant to high temperature is 300 DEG C~1700 DEG C；
The ceramic glue includes colloid and curing agent.
6. vacuum interrupter according to claim 5, which is characterized in that
The colloid includes: epoxy resin 45~80, organosilicon 0~9 in parts by mass, glass fiber powder 3~12, glass fibers
Tie up powder 42~52；
The mass ratio of the curing agent and colloid is 1~2 ︰ 4.
7. a kind of vacuum direct-current high-voltage relay, which is characterized in that including vacuum extinction as claimed in any one of claims 1 to 6
Room.
8. a kind of preparation method of vacuum direct-current high-voltage relay, which comprises the following steps:
Ceramic glue is modulated, it is spare；
The ceramic glue will be coated at conducting rod (3) step, be inserted into the stomidium of ceramic inner chamber body (1), after standing, lead described
Contact (4) are loaded on electric pole (3), steady arm (5) insertion end is coated into the ceramic glue, are inserted into the ceramic inner chamber body (1)
In centre bore, grip block is loaded onto, after standing, spring (6) and conducting block (7) are loaded on the steady arm (5), in the ceramics
Inner chamber body (1) outer surface coats the ceramic glue, after standing, vacuumizes, seals；
Electromagnetic inductor (8) are packed into plastic shell body (2) bottom of opening, by the ceramic inner chamber body (1) and the electromagnetism
Inductor (8) matches, and the ceramic inner chamber body (1) is packed into the electromagnetic inductor (8) and matches upper end, by the ceramics
Ceramic glue is filled between inner chamber body (1) and the plastic shell body (2), covers plastic shell body (2) end cap, and coated ceramic
Glue obtains vacuum direct-current high-voltage relay.
9. the preparation method of vacuum direct-current high-voltage relay according to claim 8, which is characterized in that
The time of the standing is 12h~15h.
10. the preparation method of vacuum direct-current high-voltage relay according to claim 8, which is characterized in that
It is described vacuumize rear vacuum degree be 1 × 10-10Pa.m3/ S~1 × 10-11Pa.m3/S。
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| CN110517905A (en) * | 2019-08-20 | 2019-11-29 | 湖南省美程陶瓷科技有限公司 | A kind of new energy power vehicle vacuum ceramic relay |
| CN112331523A (en) * | 2020-11-13 | 2021-02-05 | 娄底市安地亚斯电子陶瓷有限公司 | Ceramic relay for charging pile and preparation process |
| WO2023097723A1 (en) * | 2021-12-01 | 2023-06-08 | 天津平高智能电气有限公司 | High-voltage vacuum relay |
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