CN109256300A - A kind of nonpolarity ceramic seal bipolar DC contactor - Google Patents
A kind of nonpolarity ceramic seal bipolar DC contactor Download PDFInfo
- Publication number
- CN109256300A CN109256300A CN201811349707.8A CN201811349707A CN109256300A CN 109256300 A CN109256300 A CN 109256300A CN 201811349707 A CN201811349707 A CN 201811349707A CN 109256300 A CN109256300 A CN 109256300A
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- chutes
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- auxiliary
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- 239000000919 ceramic Substances 0.000 title claims abstract description 73
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 3
- 230000008033 biological extinction Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 210000000481 breast Anatomy 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 3
- BSPSZRDIBCCYNN-UHFFFAOYSA-N phosphanylidynetin Chemical compound [Sn]#P BSPSZRDIBCCYNN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims description 2
- 238000010791 quenching Methods 0.000 abstract description 5
- 230000000171 quenching effect Effects 0.000 abstract description 5
- 230000005389 magnetism Effects 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
-
- 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
-
- 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
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of nonpolarity ceramic seal bipolar DC contactors, including base assembly, ceramic arc extinguishing chamber component, contact supporter component and magnetic conductive board component；It discloses with two pieces of poles N and the setting of S pole-face opposite permanent magnet near the dynamic touching main static contact of bridge extended line, and the center line between two block permanent magnet plates, is provided with and draws magnet plate.Constitute the nonpolarity permanent magnetism arc quenching system of 4 main static contacts, it can replace positive contactor, three cathode contact device, pre-charge-relay products, the pre-charge system of the control capacitive load of composition, overcome the shortcomings of the prior art, power-on time is longer, it is more to control program, in fact it could happen that anode contactor melting welding when falseness charging, pre-charge resistance such as burn out at the failures.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, and in particular to a kind of nonpolarity ceramic seal bipolar DC contactor.
Background technique
It is existing to be made using ceramic sealing technique most of for single-pole dc contact, it is mainly used for charging pile, electronic
Automobile, electri forklift, the starting of battery driven vehicle, stopping and power-switching circuit control.Traditional D.C. contactor mainly wraps
The contact and operation electriomagnet mechanism of pedestal, control connection and disjunction circuit are included, structure is public using U.S. TYCO mostly
Take charge of EV type series new energy D.C. contactor or its modified.Such as China Patent No. be CN 105374632A,
200520089587.4,20072015712.5,200720105713.X, D.C. contactor disclosed in 200720045041.8 etc..
Permanent magnet is arranged in contact two sides in some, so that electric arc is blown off rapidly contact, because of the not set arc-chutes with arc extinguishing grid pieces, work
It is not high to make voltage.There are many arc extinguishing grid pieces for the open each breakpoint of arc-chutes of patent 200720045041.8, but operating voltage is still not
The requirement of energy Development of Electric Vehicles.Existing D.C. contactor had used mixed in electric car and electric vapour on the market in recent years
What is used on conjunction power car has low-vacuum load-tripping device CN201282083Y, discloses " a kind of low-vacuum load-tripping device, including movable contact group
Part, stationary contact component, containing cored pushing mechanism, ceramic cavity, exterior portion；Pushing mechanism is comprising catch bar and outside
The lower iron core that catch bar can be made mobile of magnetic circuit part effect；Movable contact component, stationary contact, pushing mechanism are completely sealed by making pottery
In the vacuum chamber that porcelain cavity is constituted and divide the position for being in and corresponding to each other cooperation, movable contact component, iron core, which are connected to, to be pushed away
The both ends of lever, the joint of movable contact component and catch bar slidably connect for realize movable contact component and catch bar,
The ceramic insulator that iron core is well electrically insulated." DC relay CN104091726A, disclose " a kind of DC relay, including
Contact part, contact part includes two and is respectively intended to provide static contact and a movable contact spring that electric current is flowed into, flowed out, described dynamic
The both ends of reed are matched with two static contacts respectively；One piece, which is respectively symmetrically equipped with, in the outside at the both ends of movable contact spring is used to arc blow-out
The first magnet steel, the polarity of the opposite one side of two piece of first magnet steel is any setting；It is equipped in the outside of the centre of movable contact spring
At least one block the second magnet steel with preset direction magnetic field, so that the preset direction magnetic fields generate one when on movable contact spring
The electromagnetic force contrary with contact repulsion " patent CN103985604B, disclose " a kind of arc-extinguishing mechanism, relay frame and
Relay, relay include chassis body, at least a magnet steel and an at least piece of resistance to electric arc；The chassis body has hollow portion,
Accommodating can correspond to the contact of contact in the hollow portion；The magnet steel is installed on the chassis body, and the magnet steel is located at described
The periphery of arc gap, the magnet steel can carry out arc blow-out to the electric arc generated at the arc gap；The piece of resistance to electric arc is installed on the frame
Frame body, the piece of resistance to electric arc are located on magnet steel arc blowing function direction." and LEV series new energy D.C. contactor etc.
Several prods can meet the requirement of battery work 320V, all be with two single-pole dc contacts, a relay and electricity
It hinders device and forms pre-charge control unit, but there are some dangerous links, be not able to satisfy charging pile, electric car is further sent out
Open up and propose high performance requirement.
Summary of the invention
It is connect the object of the invention is that providing a kind of nonpolarity ceramic seal bipolar DC to solve the above-mentioned problems
Tentaculum, permanent magnet are touched as magnetic quenching element using resistance and auxiliary contact the composition band precharge being inlaid in arc insulating apparatus
The bipolar DC contactor of head.
The present invention through the following technical solutions to achieve the above objectives:
A kind of nonpolarity ceramic seal bipolar DC contactor, including base assembly, ceramic arc extinguishing chamber component, contact supporter group
Part and magnetic conductive board component；
The base assembly includes pedestal and conductive plate；
The ceramics arc extinguishing chamber component includes ceramic arc-chutes, which is the cylindrical structure being arranged there are four cavity,
Centre is the main arc-chutes of A and the main arc-chutes of B, and the adjacent left side of the main arc-chutes of A is C auxiliary extinction of arc room, the adjacent right side of the main arc-chutes of B
Side is D auxiliary extinction of arc room；By the main static contact difference sealing-in of two butted line nut types in the main arc-chutes of A after cylindrical structure metallization
With the main arc-chutes of B, the quiet contact bar of two pairs of auxiliary contacts is distinguished into sealing-in in C auxiliary extinction of arc room and D auxiliary extinction of arc room, the ceramics
The first connector is sealed with below arc-chutes；And outside ceramic arc-chutes the dynamic touching bridge extended line of two pairs of main static contacts master
The permanent magnet for thering are two pieces of poles N and S pole-face to be provided opposite in rectangular shaped slot near static contact, and two pairs on the inside of ceramic arc-chutes
Two pieces, which are provided with, in the middle line thin-walled of main static contact draws magnet plate；
The contact supporting assembly is mounted in ceramic arc-chutes, and the contact supporting assembly include supporter, main touching bridge plate,
Auxiliary contact, main contact spring, secondary spring and arc insulating apparatus；Setting runs through the central axis conduct of supporter among the supporter
Guiding axis, the two sides of the guiding axis are symmetrically arranged with the main window for installing main the touching bridge plate and the main contact spring, two
The secondary window of the installation auxiliary contact and the secondary spring is provided on the outside of a main window, and the main touching bridge plate has two
Kind of size, the main touching bridge in the main arc-chutes of corresponding A is on-gauge plate, and the main touching bridge in the corresponding main arc-chutes of B is to thicken main touching bridge plate,
The guiding axis of the supporter lower part is provided with the notch of installation retaining ring, washer is equipped with above the retaining ring, on the washer
Side is provided with reaction spring, and the reaction spring is sleeved on guiding axis and is placed between washer and arc insulating apparatus, and the arc insulating apparatus is set
It is placed in the lower section of supporter；
The arc insulating apparatus is disc structure, the upper end of the disc structure and is equipped among the lower section of the main arc-chutes of A, B double-deck thin
The bathtub construction that wall is formed；Hole is offered among the disc structure, the support for placing reaction spring is provided with around the hole；
The lower end of the arc insulating apparatus disk is circumferentially provided with the groove for placing pre-charge resistor, the indoor auxiliary of C auxiliary extinction of arc
The quiet contact bar of contact goes out after successively connecting with pre-charge resistance silk and the quiet contact bar of the indoor auxiliary contact of D auxiliary extinction of arc with A master
The main static contact of arc chamber is in parallel；The lower end of two pairs of quiet contact bars of auxiliary contact is respectively installed with lug plate, for connecting
Pre-charge resistance silk；
The lower section of ceramic arc extinguishing chamber component is arranged in the magnetic conductive board component, and the magnetic conductive board component includes magnetic conductive board, the second company
Fitting, armature, copper pipe and adjusting pad, second connector are the circles that non-magnetic stainless steel thin plate stretches the annular round edge to be formed
Cylinder, the adjusting pad, the armature are packed into the cylinder of connector, and are placed at the intermediate position of the magnetic conductive board；The copper
Pipe is welded among the second connector bottom；The guiding axis top is inserted into the circular hole of ceramic arc-chutes bosom, lower end
It is inserted into armature interstitial hole across magnetic conductive board interstitial hole and is in contact with its hole bottom；
Successively it is set with coil and yoke plate on the magnetic conductive board component, and by yoke plate and magnetic conductive board riveting.
Using above technical scheme, pedestal is configured as the protection of contact system and product installation is used, and discloses permanent magnetism
Body magnetic quenching design, two pieces of aspectant permanent magnets are arranged in the external of arc-chutes in four main static contacts, in ceramic arc-chutes
The centres of two main arc-chutes of inside A, B be equipped with and draw magnet plate, i.e., draw magnet plate in the pole N and S extremely intermediate be equipped with, can be more
It mends and reduces leakage field when distance is larger between the two poles of the earth, it is existing public affairs that drawing magnet plate than permanent magnet, which has preferable arc resistant burn ability,
It opens in patent of invention, nonpolarity D.C. contactor uses permanent magnet minimum number.
And the present invention using auxiliary contact as precharge switch control capacitive load, when the coil of electromagnetic mechanism obtain it is electric
When, armature is attracted, and pushes contact supporter component, and the main contact of the main arc-chutes of B and C auxiliary contact is made first to be closed precharge electricity
Resistance access circuit, realizes precharge, and the main contact closure of the main arc-chutes of A by pre-charge resistance and is used as precharge after about several ms
The auxiliary contact of switch bypasses, and completes the power up to capacitive load.By by the main static contact of two butted line nut types and two
Contact bar sealing-in quiet to auxiliary contact becomes ceramic seal arc extinguishing chamber component, two kinds of main contact plates on the same ceramic arc-chutes
With two kinds of auxiliary contacts in the same contact supporter component, foozle is significantly reduced, it is ensured that pre-charge circuit work
Afterwards, then by pre-charge resistance it bypasses, working procedure is arranged in patented product one-shot and completes to realize, work very may be used
Lean on, the deficiencies in the prior art can be reduced, be not in the charging time it is too long, burn out pre-charge resistance, practical electricity will not occur
Container does not fill electricity (falseness completes precharge) with and burns out positive contactor.
Preferably, the thickness for thickening main touching bridge plate at contact point position is 0.8-1mm thicker than the main touching bridge plate of standard.
Preferably, the window design of the supporter installation auxiliary contact and secondary spring is big excess of stroke contact, i.e. A master
The main static contact of arc-chutes is opened away from for normal value, and the main static contact of two pairs of auxiliary contacts and the main arc-chutes of B is opened away from comparing
The small 0.8-1mm of normal value.
Preferably, the first connector and the magnetic conductive board Laser Welding of the lower section sealing-in of the ceramics arc extinguishing chamber component
It is connected into as an entirety, the generally contact component.
Preferably, the pre-charge resistance is that outer diameter is not more than 4mm, line footpath 0.45mm, pitch 0.5mm, number is enclosed
For 200 electrothermal alloy resistance wire spring ring, both ends are fastened on the tin-phosphor bronze terminal plate with a thickness of 0.5mm.
Preferably, there are two holes among the lug plate, aperture 3.1mm, two pitchs of holes are 12mm, intermediate fold-back shape
At the upper layer and lower layer for having 10 degree of angles, two hole centers are staggered 0.2mm, and it is quiet to be set in corresponding auxiliary contact using its tension
It contacts on bar.
Preferably, being full of hydrogen-nitrogen mixture gas in the ceramics arc-chutes.
Preferably, the ceramics arc-chutes are made of high purity aluminium oxide resistant to high temperature, wherein the main arc-chutes of A and C are auxiliary
It helps between arc-chutes, have thin-walled between the main arc-chutes of B and D auxiliary extinction of arc room, and be reserved with the space of installation balancing spring.
Preferably, four main static contacts of wiring nut type at the top of the ceramics arc-chutes are lifted on base with four screws
On the conductive plate of holder assembly.
Preferably, disc structure is made using high temperature heat-resistant plastic mould pressing in the arc insulating apparatus, it is mounted on ceramic arc-chutes
It closely pastes on the circumferential surface and matches with circumferential inner wall in lower end.
To sum up, the beneficial effects of the present invention are 1, the drum structure of ceramic seal arc-chutes, the external similar length of wall ratio
Square structure product reduces 30% or more, increases compression strength, improves the qualification rate of article of manufacture, reduce cost；
It 1, is in existing invention disclosed patent, nonpolarity D.C. contactor is using forever using the design of permanent magnet magnetic quenching
Number of magnets is least；
2, compared with existing ceramic seal similar product, product function increases very much, more compact, reasonable, the body of structure design
Product still very little is that have being flushed with hydrogen of precharge contactor and auxiliary contact, the ceramic seal bipolar DC of nitrogen protection simultaneously
Contactor.It can ensure that with this patent product one, while replacing prior art anode control used in electric car
Contactor, a cathode control contactor, a pre-charge-relay and pre-charge resistance.Improve safety and use can
By property, moreover it is possible to meet novel electric vehicle and charging pile increases the requirement of high power development.Have preferable economic benefit and extensively
Social benefit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is half-sectional structure chart of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is ceramic arc-chutes assembly assumption diagram of the invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the sectional structure chart of contact supporter component of the present invention；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the structure chart of magnetic conductive board component of the present invention；
Fig. 8 is arc insulating apparatus facing structure figure of the present invention；
Fig. 9 is the bottom view of Fig. 8；
Figure 10 is pre-charge circuit schematic diagram of the invention.
The reference numerals are as follows:
1, base assembly；1.1, pedestal；1.2, conductive plate；2, permanent magnet；3, ceramic arc extinguishing chamber component；3.1, ceramic arc-chutes；
3.2, the quiet contact bar of auxiliary contact；3.3, main static contact；3.4, the first connector；4, contact supporter component；4.1, supporter；
4.2, main contact spring；4.3, main touching bridge plate；4.4, retaining ring；4.5, washer；4.6, reaction spring；4.7, main touching bridge plate is thickeied；
4.8, arc insulating apparatus；4.9, secondary spring；4.10, auxiliary contact；4.11, lug plate；4.12, resistance wire；4.13, balancing spring；
4.14, guiding axis；5, magnetic conductive board component；5.1, magnetic conductive board；5.2, the second connector；5.3, armature；5.4, copper pipe；5.5, it adjusts
Pad；6, coil；7, yoke plate；8, draw magnet plate.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Referring to shown in Fig. 1-Figure 10, the present invention provides a kind of nonpolarity ceramic seal bipolar DC contactors, including base
Holder assembly 1, ceramic arc extinguishing chamber component 3, contact supporter component 4 and magnetic conductive board component 5；
As shown in Figure 1, the base assembly 1 includes pedestal 1.1 and conductive plate 1.2；Pedestal 1.1 is configured as the guarantor of contact system
Shield and product are installed and used.
As Figure 3-Figure 4, the ceramic arc extinguishing chamber component 3 includes ceramic arc-chutes 3.1, which is
Cylindrical structure there are four cavity is set, and centre is the main arc-chutes of A and the main arc-chutes of B, and the adjacent left side of the main arc-chutes of A is that C is auxiliary
Arc-chutes are helped, the adjacent right side of the main arc-chutes of B is D auxiliary extinction of arc room；By two butted line nut types after cylindrical structure metallization
Main static contact 3.3 distinguishes sealing-in in the main arc-chutes of A and the main arc-chutes of B, and the quiet contact bar 3.2 of two pairs of auxiliary contacts is distinguished sealing-in and is existed
C auxiliary extinction of arc room and D auxiliary extinction of arc room are equipped with two holes in two main arc-chutes as main static contact 3.3 is installed and use.The pottery
The lower section of porcelain arc-chutes 3.1 is sealed with the first connector 3.4；And in the dynamic of the ceramic 3.1 main static contact 3.3 in two pairs of outside of arc-chutes
The permanent magnet 2 for thering are two pieces of poles N and S pole-face to be provided opposite in rectangular shaped slot near the main static contact 3.3 of touching bridge extended line, and
Two pieces, which are provided with, in the middle line thin-walled of the ceramic 3.1 two pairs of main static contacts 3.3 in inside of arc-chutes draws magnet plate 8.
Shown in Fig. 5-Fig. 6, the contact supporting assembly 4 is mounted in ceramic arc-chutes 3.1, and the contact supporting assembly
Including supporter 4.1, main touching bridge plate 4.3, auxiliary contact 4.10, main contact spring 4.2, secondary spring 4.9 and arc insulating apparatus 4.8；
Through the central axis of supporter 4.1 as guiding axis 4.14,4.14 diameter of guiding axis is 4mm for setting among the supporter 4.1.
The two sides of the guiding axis 4.14 are symmetrically arranged with the main window for installing main the touching bridge plate 4.3 and the main contact spring 4.2,
The secondary window for installing the auxiliary contact 4.10 and the secondary spring 4.9, and the master are provided on the outside of two main windows
Bridge plate 4.3 is touched there are two types of size, the main touching bridge in the main arc-chutes of corresponding A is on-gauge plate, and the main touching bridge in the corresponding main arc-chutes of B is
Main touching bridge plate 4.7 is thickeied, the guiding axis 4.14 of 4.1 lower part of supporter is provided with the notch of installation retaining ring 4.4, the retaining ring
4.4 top is equipped with washer 4.5, reaction spring 4.6 is provided with above the washer 4.5, and the reaction spring 4.6 is sleeved on and leads
It is placed in on axis 4.14 between washer 4.5 and arc insulating apparatus 4.8, the arc insulating apparatus 4.8 is set to the lower section of supporter 4.1；
As shown in Figure 8, Figure 9, the arc insulating apparatus 4.8 is disc structure, the upper end of the disc structure and under the main arc-chutes of A, B
The intermediate bathtub construction for being equipped with double-layer thin wall and being formed in side, it is ensured that have higher insulation voltage between two circuits.The circle of arc insulating apparatus 4.8
The top of disk, have thin-walled it is opposite with the thin-walled of two auxiliary extinction of arc rooms of the main arc-chutes of A, the main arc-chutes of B and outside it is ensured that
The electric arc of each contact disjunction separates.Hole is offered among the disc structure, placement counter-force is provided with around the hole
The support of spring 4.6.The lower end of 4.8 disk of arc insulating apparatus is circumferentially provided with the groove for placing pre-charge resistor, the groove
Diameter be slightly larger than 4mm, for place pre-charge resistance；The quiet contact bar 3.2 of the indoor auxiliary contact of C auxiliary extinction of arc successively with
Main stationary contact after pre-charge resistance silk 4.12 and quiet contact bar 3.2 series connection of the indoor auxiliary contact of D auxiliary extinction of arc with the main arc-chutes of A
First 3.3 are in parallel (such as Figure 10)；The lower end of two pairs of quiet contact bars 3.2 of auxiliary contact is respectively installed with lug plate 4.11, uses
In connection pre-charge resistance silk 4.12；
As shown in fig. 7, the lower section of ceramic arc extinguishing chamber component 3 is arranged in the magnetic conductive board component 5, the magnetic conductive board component 5 includes
Magnetic conductive board 5.1, the second connector 5.2, armature 5.3, copper pipe 5.4 and adjusting pad 5.5, second connector 5.2 is non-magnetic
The cylinder for the annular round edge that Thin Stainless Steel plate stretching is formed, the adjusting pad 5.5, the armature 5.3 are packed into the cylinder of connector
It is interior, and armature 5.3 is put among the magnetic conductive board 5.1；The copper pipe 5.4 is welded among 5.2 bottom of the second connector；Institute
It states 4.14 top of guiding axis to be inserted into the circular hole of 3.1 bosom of ceramic arc-chutes, lower end passes through 5.1 interstitial hole of magnetic conductive board and inserts
Enter into 5.3 interstitial hole of armature bottom to contact.It is successively set with coil 6 and yoke plate 7 on the magnetic conductive board component 5,
And by yoke plate 7 and 5.1 riveting of magnetic conductive board.After the electromagnetic mechanism that the coil 6, yoke plate 7, magnetic conductive board component 5 form is powered,
The contact supporter component 4 pushes main touching bridge plate 4.3 mobile to the main static contact, while the contact supporter component 4
Push auxiliary contact 4.10 mobile to the auxiliary static contact.
Using above technical scheme, pedestal 1.1 is configured as the protection of contact system and product installation is used, and discloses forever
2 magnetic quenching of magnet design, four main static contacts are arranged two pieces of aspectant permanent magnets 2 in the external of arc-chutes, go out in ceramics
The centre of two main arc-chutes of inside A, B of arc chamber 3.1, which is equipped with, draws magnet plate 8, i.e., draws magnetic in the pole N and S extremely intermediate be equipped with
Iron plate 8 can make up and reduce leakage field when distance is larger between the two poles of the earth, and drawing magnet plate 8 than permanent magnet 2 has preferable arc resistant burn energy
Power is in existing open patent of invention, and nonpolarity D.C. contactor uses 2 minimum number of permanent magnet.
And the present invention controls capacitive load using auxiliary contact 4.10 as precharge switch, when the coil of electromagnetic mechanism
6 it is electric when, armature 5.3 is attracted, push contact supporter component 4, make the main contact and C auxiliary contact 4.10 of the main arc-chutes of B
First closure pre-charge resistance accesses circuit, realizes precharge, and the main contact closure of the main arc-chutes of A will precharge electricity after about several ms
It hinders and the auxiliary contact 4.10 as precharge switch bypasses, complete the power up to capacitive load.By by two butted lines
The main static contact 3.3 of nut type and quiet 3.2 sealing-in of contact bar of two pairs of auxiliary contacts become ceramics on the same ceramic arc-chutes 3.1
Arc extinguishing chamber component is sealed, two kinds of main contact plates and two kinds of auxiliary contacts 4.10 are greatly dropped in the same contact supporter component 4
Low foozle, it is ensured that after pre-charge circuit work, then pre-charge resistance bypassed, working procedure is arranged in patented product one
Secondary start completion is realized, is worked very reliable, can be reduced the deficiencies in the prior art, be not in the charging time it is too long, burn
Bad pre-charge resistance true capacitor will not occurs and not fill electricity (falseness completes precharge) with and burn out positive contactor.
As preferred embodiment, it is described thicken it is main touching bridge plate 4.7 contact point position thickness than standard main touching bridge
4.3 thickness 0.8-1mm of plate.The supporter 4.1 installs the window design of auxiliary contact 4.10 and secondary spring 4.9 as the touching of the big excess of stroke
The main static contact 3.3 of the main arc-chutes of head, i.e. A is opened away from for normal value, and the master of two pairs of auxiliary contacts 4.10 and the main arc-chutes of B is quiet
Contact 3.3 is opened away from 0.8-1mm smaller than normal value.
First connector 3.4 of the ceramics arc extinguishing chamber component sealing-in becomes one with the magnetic conductive board 5.1 laser welding
A entirety, the generally contact component.The contact component vacuumized and is flushed with hydrogen by copper pipe 5.4, nitrogen mixture gas, by copper pipe
Coil 6 is assembled after 5.4 sealing leak detections and contact system is made in 7 riveting of yoke plate.Four of 3.1 top of ceramics arc-chutes connect
The main static contact 3.3 of line nut type is lifted on the conductive plate 1.2 of base assembly 1 with four M6x12 screws.
The pre-charge resistance is that outer diameter is not more than 4mm, line footpath 0.45mm, pitch 0.5mm, the electricity that circle number is 200
4.12 spring ring of thermalloy resistance wire, both ends fasten on the tin-phosphor bronze lug plate 4.11 with a thickness of 0.5mm.The arc insulating apparatus
Circumferentially the interior diameter that is provided with is slightly larger than 4 millimeters of grooves for 4.8 lower end, to place pre-charge resistance silk 4.12.
There are two holes among the lug plate 4.11, and aperture 3.1mm, two pitchs of holes are 12mm, and centre is turned back and is formed with
The upper layer and lower layer of 10 degree of angles, two hole centers are staggered 0.2mm, are set in the quiet contact of corresponding auxiliary contact using its tension
On bar 3.2.
The ceramics arc-chutes 3.1 are made of high purity aluminium oxide resistant to high temperature, wherein the main arc-chutes of A and C auxiliary extinction of arc
There is thin-walled between room, between the main arc-chutes of B and D auxiliary extinction of arc room, and is reserved with the space of installation balancing spring 4.13.
Disc structure is made using high temperature heat-resistant plastic mould pressing in the arc insulating apparatus 4.8, is mounted on ceramic 3.1 lower end of arc-chutes
It is close to paste on the circumferential surface and match with circumferential inner wall and reach gap very little.
This patent product design structure is more reasonable, and operating voltage can reach 800V, and control motor power (output) reaches 120KW
More than, charging pile can be met and miniaturised and Development of Electric Vehicles increase power and reliability, the higher requirement of safety.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of nonpolarity ceramic seal bipolar DC contactor, it is characterised in that: including base assembly, ceramic arc-chutes group
Part, contact supporter component and magnetic conductive board component；
The base assembly includes pedestal and conductive plate；
The ceramics arc extinguishing chamber component includes ceramic arc-chutes, which is the cylindrical structure being arranged there are four cavity,
Centre is the main arc-chutes of A and the main arc-chutes of B, and the adjacent left side of the main arc-chutes of A is C auxiliary extinction of arc room, the adjacent right side of the main arc-chutes of B
Side is D auxiliary extinction of arc room；By the main static contact difference sealing-in of two butted line nut types in the main arc-chutes of A after cylindrical structure metallization
With the main arc-chutes of B, the quiet contact bar of two pairs of auxiliary contacts is distinguished into sealing-in in C auxiliary extinction of arc room and D auxiliary extinction of arc room, the ceramics
The first connector is sealed with below arc-chutes；And outside ceramic arc-chutes the dynamic touching bridge extended line of two pairs of main static contacts master
The permanent magnet for thering are two pieces of poles N and S pole-face to be provided opposite in rectangular shaped slot near static contact, and two pairs on the inside of ceramic arc-chutes
Two pieces, which are provided with, in the middle line thin-walled of main static contact draws magnet plate；
The contact supporting assembly is mounted in ceramic arc-chutes, and the contact supporting assembly include supporter, main touching bridge plate,
Auxiliary contact, main contact spring, secondary spring and arc insulating apparatus；Setting runs through the central axis conduct of supporter among the supporter
Guiding axis, the two sides of the guiding axis are symmetrically arranged with the main window for installing main the touching bridge plate and the main contact spring, two
The secondary window of the installation auxiliary contact and the secondary spring is provided on the outside of a main window, and the main touching bridge plate has two
Kind of size, the main touching bridge in the main arc-chutes of corresponding A is on-gauge plate, and the main touching bridge in the corresponding main arc-chutes of B is to thicken main touching bridge plate,
The guiding axis of the supporter lower part is provided with the notch of installation retaining ring, washer is equipped with above the retaining ring, on the washer
Side is provided with reaction spring, and the reaction spring is sleeved on guiding axis and is placed between washer and arc insulating apparatus, and the arc insulating apparatus is set
It is placed in the lower section of supporter；
The arc insulating apparatus is disc structure, the upper end of the disc structure and is equipped among the lower section of the main arc-chutes of A, B double-deck thin
The bathtub construction that wall is formed；Hole is offered among the disc structure, the support for placing reaction spring is provided with around the hole；
The lower end of the arc insulating apparatus disk is circumferentially provided with the groove for placing pre-charge resistor, the indoor auxiliary of C auxiliary extinction of arc
The quiet contact bar of contact goes out after successively connecting with pre-charge resistance silk and the quiet contact bar of the indoor auxiliary contact of D auxiliary extinction of arc with A master
The main static contact of arc chamber is in parallel；The lower end of two pairs of quiet contact bars of auxiliary contact is respectively installed with lug plate, for connecting
Pre-charge resistance silk；
The lower section of ceramic arc extinguishing chamber component is arranged in the magnetic conductive board component, and the magnetic conductive board component includes magnetic conductive board, the second company
Fitting, armature, copper pipe and adjusting pad, second connector are the circles that non-magnetic stainless steel thin plate stretches the annular round edge to be formed
Cylinder, the adjusting pad, the armature are packed into the cylinder of the second connector, and are placed on position among the magnetic conductive board；The copper
Pipe is welded among the second connector bottom；The guiding axis top is inserted into the circular hole of ceramic arc-chutes bosom, lower end
It is inserted into armature interstitial hole across magnetic conductive board interstitial hole and is touched with its bottom connection；
Successively it is set with coil and yoke plate on the magnetic conductive board component, and by yoke plate and magnetic conductive board riveting.
2. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the thickening master
It is 0.8-1mm thicker than the main touching bridge plate of standard to touch thickness of the bridge plate at contact point position.
3. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the supporter
The window design for installing auxiliary contact and secondary spring is big excess of stroke contact, i.e. the main static contact of the main arc-chutes of A is opened away from being positive
The main static contact of constant value, two pairs of auxiliary contacts and the main arc-chutes of B is opened away from 0.8-1mm smaller than normal value.
4. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the ceramics go out
The first connector and the magnetic conductive board of the lower section sealing-in of arc chamber component become an entirety with laser welding, this is generally contacted
Component.
5. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the precharge
Resistance is that outer diameter is not more than 4mm, line footpath 0.45mm, pitch 0.5mm, encloses the electrothermal alloy resistance wire spring ring that number is 200,
Both ends fasten on the tin-phosphor bronze terminal plate with a thickness of 0.5mm.
6. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 5, it is characterised in that: the lug plate
Intermediate there are two holes, and aperture 3.1mm, two pitchs of holes are 12mm, and centre, which is turned back, is formed with the upper layer and lower layer of 10 degree of angles, two holes
Center is staggered 0.2mm, is set on the quiet contact bar of corresponding auxiliary contact using its tension.
7. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the ceramics go out
Hydrogen-nitrogen mixture gas is full of in arc chamber.
8. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 7, it is characterised in that: the ceramics go out
Arc chamber is made of high purity aluminium oxide resistant to high temperature, wherein between the main arc-chutes of A and C auxiliary extinction of arc room, the main arc-chutes of B and D it is auxiliary
Helping has thin-walled between arc-chutes, and is reserved with the space of installation balancing spring.
9. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the ceramics go out
Four main static contacts of wiring nut type at the top of arc chamber are lifted on the conductive plate of base assembly with four screws.
10. a kind of nonpolarity ceramic seal bipolar DC contactor according to claim 1, it is characterised in that: the arc
Disc structure is made using high temperature heat-resistant plastic mould pressing in part, be mounted on ceramic arc-chutes lower end closely paste on the circumferential surface and with circle
All inner walls are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349707.8A CN109256300B (en) | 2018-11-14 | 2018-11-14 | Bipolar direct current contactor of nonpolar ceramic seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811349707.8A CN109256300B (en) | 2018-11-14 | 2018-11-14 | Bipolar direct current contactor of nonpolar ceramic seal |
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| Publication Number | Publication Date |
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| CN109256300A true CN109256300A (en) | 2019-01-22 |
| CN109256300B CN109256300B (en) | 2024-03-22 |
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| CN201811349707.8A Active CN109256300B (en) | 2018-11-14 | 2018-11-14 | Bipolar direct current contactor of nonpolar ceramic seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109887779A (en) * | 2019-04-02 | 2019-06-14 | 浙江众信新能源科技股份有限公司 | A kind of D.C. contactor ceramic seal auxiliary switch |
| CN113936963A (en) * | 2021-10-20 | 2022-01-14 | 沈阳二一三控制电器制造有限公司 | Contact assembly and direct current contactor |
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| CN208796916U (en) * | 2018-11-14 | 2019-04-26 | 沈阳二一三控制电器制造有限公司 | A kind of nonpolarity ceramic seal bipolar DC contactor |
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| CN113936963A (en) * | 2021-10-20 | 2022-01-14 | 沈阳二一三控制电器制造有限公司 | Contact assembly and direct current contactor |
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| Publication number | Publication date |
|---|---|
| CN109256300B (en) | 2024-03-22 |
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