CN109559939A - A kind of DC relay of resistance to shorting electric current - Google Patents
A kind of DC relay of resistance to shorting electric current Download PDFInfo
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- CN109559939A CN109559939A CN201811330771.1A CN201811330771A CN109559939A CN 109559939 A CN109559939 A CN 109559939A CN 201811330771 A CN201811330771 A CN 201811330771A CN 109559939 A CN109559939 A CN 109559939A
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- movable contact
- contact spring
- magnetizer
- spring
- electric current
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 133
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 12
- 230000005520 electrodynamics Effects 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 230000004907 flux Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
Abstract
The invention discloses a kind of DC relays of resistance to shorting electric current, including two stationary contact exits, a movable contact spring and a rod member, upper magnetizer is housed in the top of a predeterminated position of movable contact spring, the lower magnetizer that reed moves together can be servo-actuated by being equipped with below a predeterminated position of movable contact spring；At least one through-hole is equipped in the movable contact spring of the predeterminated position, so that upper magnetizer can be close to each other by the through-hole with lower magnetizer or contacts with each other, and at least two independent magnetic conductive loops are formed on the width of movable contact spring by the upper magnetizer and lower magnetizer.The present invention can use each magnetic conductive loop in the increased magnetic pole pole-face of corresponding lead to the hole site, in movable contact spring failure high current, generate the suction on contact force direction, it goes to resist the electrodynamic repulsion force generated between movable contact spring and stationary contact exit by fault current, and having magnetic efficiency high, magnetic circuit is not easy the characteristics of being saturated.
Description
Technical field
The present invention relates to relay technical fields, more particularly to a kind of DC relay of resistance to shorting electric current.
Background technique
A kind of DC relay of the prior art is to use direct-acting magnet line structure, two stationary contact exit (i.e. two
Load exit) it is separately mounted on shell, the bottom end of two stationary contact exits is equipped with stationary contact, and one of stationary contact draws
The electric current of outlet flows into, and the electric current outflow of another stationary contact exit is provided with dynamic spring and rod member in shell, moves spring
Using straight chip type movable contact spring (also referred to as bridge-type movable contact spring), movable contact spring is mounted in rod member by spring, pushes bar portion
Part is connected with Direct Action Type magnetic circuit, and under the action of Direct Action Type magnetic circuit, rod member drives movable contact spring to move up, and makes spring
The movable contact at piece both ends is in contact with the stationary contact of two stationary contact exit bottom ends respectively, to realize connection load.It is existing
This DC relay of technology can generate electrodynamic repulsion force when failure short circuit current between dynamic and static contact, influence
The stability contacted between dynamic and static contact.
With the rapid development of new energy industry, the requirement of each depot and battery pack factory to failed shorted electric current is also increasingly
Height, on the basis of keeping feature small in size, it is desirable that DC relay has the function of resistance to shorting, can break down in system big
Auxiliary suction is provided when electric current, to resist the electrodynamic repulsion force that dynamic spring is subject to.The resistance to shorting for the typical input that existing market requires is wanted
It asks and does not burn, do not fry for 8000A, 5ms；And the DC relay of the prior art can not provide enough in the case where keeping feature small in size
Suction, i.e., contact force is insufficiently resistant to the electrodynamic repulsion force that dynamic spring is subject to, therefore is difficult to meet market demands.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, provides a kind of DC relay of resistance to shorting electric current, energy
It is enough to provide enough contact forces under the feature for keeping small product size small, to resist caused by the big short circuit current that dynamic spring is subject to
Electrodynamic repulsion force, and have magnetic efficiency high, magnetic circuit is not easy the characteristics of being saturated.
The technical solution adopted by the present invention to solve the technical problems is: a kind of DC relay of resistance to shorting electric current, packet
The movable contact spring and a rod member of two stationary contact exits, straight piece type are included, movable contact spring is loaded on rod member, with
Realize that the movable contact at movable contact spring both ends connects with the stationary contact of the bottom end of two stationary contact exits under rod member effect
Touching is realized that electric current is flowed into from a stationary contact exit, is flowed out after movable contact spring from another stationary contact exit；In dynamic spring
The top of one predeterminated position of piece is equipped with the upper magnetizer of the width distribution along movable contact spring, in the predeterminated position of movable contact spring
Below equipped with the width distribution along movable contact spring and the lower magnetizer that reed moves together can be servo-actuated；In the predeterminated position
At least one through-hole is equipped in movable contact spring, so that upper magnetizer can be close to each other or mutual by the through-hole with lower magnetizer
Contact, and at least two independent magnetic conductive loops are formed on the width of movable contact spring by the upper magnetizer and lower magnetizer, with
Using each magnetic conductive loop in the corresponding increased magnetic pole pole-face of lead to the hole site, in movable contact spring failure high current, produce
Suction on raw contact force direction goes to resist the electronic reprimand generated between movable contact spring and stationary contact exit by fault current
Power.
The predeterminated position is movable contact spring corresponding between two movable contacts in length.
The upper magnetizer is magnetizer at least one "-" type, and the lower magnetizer is at least two U-shaped lower magnetic conductions
Body；Wherein, a U-shaped lower magnetizer forms an independent magnetic conductive loop with magnetizer in corresponding "-" type, and adjacent
It is not in contact between the U-shaped lower magnetizer of two of two magnetic conductive loops.
In at least two independent magnetic conductive loops, magnetic conduction in the "-" type of two adjacent magnetic conductive loops of at least one group
Body is one shared, and the U-shaped lower magnetizer of two of two adjacent magnetic conductive loops is respectively fitting into magnetic conduction in a "-" type
The lower section of body.
In at least two independent magnetic conductive loops, magnetizer is in the "-" type of all two adjacent magnetic conductive loops
Independent two, the U-shaped lower magnetizer of two of two adjacent magnetic conductive loops is respectively fitting into magnetizer in corresponding "-" type
Lower section.
The magnetic conductive loop is two, and the movable contact spring is equipped with a through-hole, each one side wall point of two U-shaped lower magnetizers
It is not affixed on the respective side of the width of movable contact spring, each another side wall of two U-shaped lower magnetizers is each passed through the same of movable contact spring
A through-hole, and there is gap between each another side wall of two U-shaped lower magnetizers.
Each another side wall of described two U-shaped lower magnetizers is in the same through-hole of movable contact spring along the length of movable contact spring
Direction is distributed side by side, divides two magnetic conductive loops corresponding to two U-shaped lower magnetizers side by side along the length direction of movable contact spring
Cloth.
Each another side wall of described two U-shaped lower magnetizers is in the same through-hole of movable contact spring along the length of movable contact spring
Direction is dislocatedly distributed, and makes two magnetic conductive loops corresponding to two U-shaped lower magnetizers along the length direction dislocation point of movable contact spring
Cloth.
The magnetic conductive loop is two, and the movable contact spring is set there are two through-hole, and two through-holes are in the length side of movable contact spring
It is distributed side by side upwards, each one side wall of described two U-shaped lower magnetizers is affixed on the respective side of the width of movable contact spring respectively, described
Each another side wall of two U-shaped lower magnetizers is respectively fitting into two through-holes of movable contact spring, keeps two U-shaped lower magnetizer institutes right
Two magnetic conductive loops answered are distributed side by side along the length direction of movable contact spring.
The magnetic conductive loop is two, and the movable contact spring is set there are two through-hole, and two through-holes are in the length side of movable contact spring
It is dislocatedly distributed upwards, each one side wall of described two U-shaped lower magnetizers is affixed on the respective side of the width of movable contact spring respectively, described
Each another side wall of two U-shaped lower magnetizers is respectively fitting into two through-holes of movable contact spring, keeps two U-shaped lower magnetizer institutes right
Two magnetic conductive loops answered are dislocatedly distributed along the length direction of movable contact spring.
The magnetic conductive loop is three, and the movable contact spring is set there are two through-hole, and three U-shaped lower magnetizers are along movable contact spring
Width sequence arranges, wherein the two sidewalls of the U-shaped lower magnetizer of intermediate one are each passed through two through-holes of movable contact spring, both sides
Two U-shaped lower magnetizers each one side wall be affixed on respectively movable contact spring width respective side, the U-shaped lower magnetic conduction of two of both sides
Each another side wall of body is each passed through two through-holes of movable contact spring, and has between the two side walls in the same through-hole in movable contact spring
There is gap.
The top and the upper surface of the movable contact spring of the side wall of the U-shaped lower magnetizer are substantially concordant.
The upper magnetizer is upper armature, and upper armature is fixed on the rod member, and the lower magnetizer is lower armature,
Lower armature is fixed on the movable contact spring, and the movable contact spring is mounted in the rod member by spring, when moving for movable contact spring
When contact is in contact with the stationary contact of stationary contact exit, there are a preset gaps between upper armature and lower armature.
The upper magnetizer be upper yoke, upper yoke ferropexy in be used to two stationary contact exits are installed shell on, institute
Stating lower magnetizer is lower armature, and lower armature is fixed on the movable contact spring, and the movable contact spring is mounted on the catch bar by spring
In component, when the movable contact of movable contact spring is in contact with the stationary contact of stationary contact exit, upper yoke is in contact with lower armature.
The rod member includes u-bracket, spring base and catch bar, the top of the catch bar and the spring base
Mutually fixed, the bottom of the u-bracket is mutually fixed with the spring base, and the movable contact spring and two U-shaped lower magnetizers are formed
Movable spring assembly be mounted in the u-bracket by the spring, wherein the upper surface of movable contact spring is against the top of u-bracket
Inner wall, spring are against between the bottom end of described two U-shaped lower magnetizers and the top of the spring base.
The bottom end of described two U-shaped lower magnetizers further respectively has the half slot for positioning the spring, and makes two
Half slot surrounds a full circle to fit in the top of the spring.
The bottom end of described two U-shaped lower magnetizers further respectively has the positioning column for positioning the spring, fixed to utilize
Position column positions spring in the outside at the top of spring.
In the movable contact spring, those widened sections are further respectively had on the both sides for the width for corresponding to lead to the hole site.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is equipped with upper magnetizer in the top of a predeterminated position of movable contact spring due to using, in movable contact spring
The lower magnetizer that reed moves together can be servo-actuated by being equipped with below one predeterminated position；In the movable contact spring of the predeterminated position
Equipped at least one through-hole, so that upper magnetizer can be close to each other by the through-hole with lower magnetizer or contacts with each other, and
At least two independent magnetic conductive loops are formed on the width of movable contact spring by the upper magnetizer and lower magnetizer, it is each to utilize
Magnetic conductive loop is in the corresponding increased magnetic pole pole-face of lead to the hole site, in movable contact spring failure high current, increases contact pressure
Suction on power direction is superimposed with contact force and resists between movable contact and stationary contact because of the electricity of fault current generation
Dynamic repulsion；Multiple independent magnetic conductive loops divide equally Short-Circuit High Current substantially, have magnetic efficiency high, magnetic circuit is not easy the spy being saturated
Point.
2, the present invention is due to using each independent magnetic conductive loop by magnetizer in "-" type and U-shaped lower magnetizer phase
Cooperation is formed, and can use identical part, at low cost；And there are gaps between each U-shaped lower magnetizer；Magnetic conduction in "-" type
Body can be fixed on rod member, can also be fixed on the shell for installing two stationary contact exits, it is each it is U-shaped under
Magnetizer is to be individually fixed in the movable contact spring with riveting method, and the top of the side wall of U-shaped lower magnetizer is exposed to described move
The upper surface of reed.This structure of the invention, be formed at the section of movable contact spring using upper magnetizer and lower magnetizer it is more
A independent magnetic conductive loop generates magnetic flux on multiple magnetic conductive loops when movable contact spring passes through fault current, returns in each magnetic conduction
Suction is generated between the magnetizer on road, which is the increased direction of contact force, for resisting the electrodynamic repulsion force between contact, due to
Multiple magnetic conductive loops are used, each circuit is only Imax/n by the fault current contained, so that magnetic circuit is not easy to be saturated, is passed through
Electric current is bigger, and contact force increase is bigger, and the suction that magnetic conductive loop generates is also bigger.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But a kind of resistance to shorting electric current of the invention
DC relay be not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the part-structure (cut open and show corresponding to the length along movable contact spring) of the embodiment of the present invention one；
Fig. 2 is the cross-sectional view of the part-structure (cut open and show corresponding to the width along movable contact spring) of the embodiment of the present invention one；
Fig. 3 is the schematic diagram that the movable contact spring, upper and lower magnetizer and rod member of the embodiment of the present invention one match；
Fig. 4 is that the component that the movable contact spring, upper and lower magnetizer and rod member of the embodiment of the present invention one match decomposes
Schematic diagram；
Fig. 5 is the movable contact spring of the embodiment of the present invention one and the schematic diagram of upper and lower magnetic conduction mates；
Fig. 6 is the movable contact spring of the embodiment of the present invention one and the schematic diagram of upper and lower magnetic conduction mates (overturning one side)；
Fig. 7 is the u-bracket of the rod member of the embodiment of the present invention one and the schematic diagram of upper magnetic conduction mates；
Fig. 8 is the movable contact spring of the embodiment of the present invention one and the schematic diagram of lower magnetic conduction mates；
Fig. 9 is the schematic diagram of double magnetic conductive loops of the embodiment of the present invention one；
Figure 10 is the stationary contact exit of the embodiment of the present invention one and movable contact spring matches the schematic diagram of (contact disconnection)；
Figure 11 is the stationary contact exit of the embodiment of the present invention one and movable contact spring matches the schematic diagram of (contact contact)；
Figure 12 is the stationary contact exit of the embodiment of the present invention two and movable contact spring matches the schematic diagram of (contact disconnection)；
Figure 13 is the stationary contact exit of the embodiment of the present invention two and movable contact spring matches the schematic diagram of (contact contact)；
Figure 14 is the upper and lower magnetizer of the embodiment of the present invention three and the D structure schematic diagram that movable contact spring matches；
Figure 15 is the upper and lower magnetizer of the embodiment of the present invention three and the cross-sectional view that movable contact spring matches；
Figure 16 is the organigram of the movable contact spring of the embodiment of the present invention three.
Specific embodiment
Embodiment one
Referring to shown in Fig. 1 to Figure 11, a kind of DC relay of resistance to shorting electric current of the invention, including two respectively as
Electric current flows into dynamic for driving with the movable contact spring 2 of two stationary contact exits 11,12, one straight piece types of electric current outflow and one
Reed 2 moves movable contact and the stationary contact point contact of stationary contact exit bottom end or the catch bar of disconnection to realize movable contact spring both ends
Component 3；Two stationary contact exits 11,12 are attached separately on shell 4, and a part of movable contact spring 2 and rod member 3 is contained in
In shell 4, rod member 3 is also connected with the dynamic iron core 5 in magnetic structure, under the action of magnetic circuit, 3 band of rod member
Dynamic movable contact spring 2 moves up, and makes the movable contact at 2 both ends of the movable contact spring stationary contact with two stationary contact exits 11,12 bottom ends respectively
Point is in contact, to realize connection load；The movable contact spring 2 is mounted in the rod member 3 by spring 31 to realize
Movable contact spring 2 can be displaced (overtravel for realizing contact) relative to the rod member 3；In a default position of movable contact spring 2
The top set is equipped with upper magnetizer 61, and in the present embodiment, upper magnetizer 61 is upper armature, in a predeterminated position of movable contact spring 2
Below equipped with that can be servo-actuated the lower magnetizer 62 that reed moves together, in the present embodiment, lower magnetizer 62 is lower armature；This reality
It applies in example, the upper magnetizer 61 is fixed on the rod member 3, and the lower magnetizer 62 is fixed on the movable contact spring 2；?
At least one through-hole 22 is equipped in the movable contact spring of the predeterminated position, so that upper magnetizer 61 and lower magnetizer 62 can pass through institute
It is close to each other or contact with each other to state through-hole 22, and the shape on the width of movable contact spring 2 by the upper magnetizer 61 and lower magnetizer 62
At at least two independent magnetic conductive loops, with using each magnetic conductive loop in the corresponding increased magnetic pole pole-face of lead to the hole site,
In 2 failure high current of movable contact spring, the suction on contact force direction is generated, goes to resist movable contact spring and stationary contact exit
Between because fault current generate electrodynamic repulsion force.Wherein, upper magnetizer, lower magnetizer can use iron, cobalt, nickel and its alloy
Materials are waited to be made.
So-called two independent magnetic conductive loops refer to will not interfere with each other between two magnetic conductive loops, that is, magnetic flux is not deposited
The case where cancelling out each other.
The predeterminated position corresponds between two movable contacts in length for movable contact spring, described pre- in the present embodiment
If position is substantially intermediate the 21 of the length of movable contact spring 2.
In the present embodiment, as shown in Figure 10, Figure 11, since upper magnetizer 61 is fixed on the rod member 3, under described
Magnetizer 62 is fixed on the movable contact spring 2, and the movable contact spring 2 is mounted in the rod member 3 by spring 31, when dynamic spring
When the movable contact of piece 2 is in contact with the stationary contact of stationary contact exit 11,12, exist between upper magnetizer 61 and lower magnetizer 62
One preset gap, in this way, there are magnetic gap for magnetic conductive loop.
The upper magnetizer is magnetizer at least one "-" type, and the lower magnetizer is at least two U-shaped lower magnetic conductions
Body；Wherein, a U-shaped lower magnetizer forms an independent magnetic conductive loop with magnetizer in corresponding "-" type, and adjacent
It is not in contact between the U-shaped lower magnetizer of two of two magnetic conductive loops.
In the present embodiment, magnetic conductive loop is two, and two magnetic conductive loops are by magnetizer 61 in a "-" type and a U
Magnetizer 62 matches to be formed under type；Magnetizer 61 is fixed on described push away in a manner of rivet or weld respectively in two "-" types
Rod part 3, two U-shaped lower magnetizers 62 are individually fixed in the movable contact spring 2, and two U-shaped lower magnetizers with riveting method
The top of 62 side wall is exposed to the upper surface of the movable contact spring.
In the present embodiment, the through-hole 22 of the movable contact spring 2 is set as that the side wall of two U-shaped lower magnetizers is allowed to be pierced by.
In the present embodiment, magnetic conductive loop is two, i.e. magnetic conductive loop Φ 1 and magnetic conductive loop Φ (as shown in Figure 9), two one
Magnetizer 61 is fixed on the rod member 3 in font, in two "-" types between magnetizer 61 have certain interval, two
Each one side wall 621 of U-shaped lower magnetizer 62 is affixed on the respective side of the width of movable contact spring 2 respectively, two U-shaped lower magnetizers 62
Each another side wall 622 is each passed through the same through-hole 22 of movable contact spring, and each another side wall 622 of two U-shaped lower magnetizers it
Between have gap so that the magnetic flux of two magnetic conductive loops will not cancel out each other.
In the present embodiment, the top and the upper surface of the movable contact spring of the side wall of the U-shaped lower magnetizer are substantially concordant, i.e.,
The side wall 621 of U-shaped lower magnetizer 62 and the top of side wall 622 and the upper surface of the movable contact spring 2 are substantially concordant.
In the present embodiment, in the movable contact spring 2, those widened sections are further respectively had on the both sides for the width for corresponding to lead to the hole site
23。
Since there are two above magnetic conductive loops by the present invention, there are four side wall (i.e. two sides altogether for two U-shaped lower magnetizers 62
Wall 621, two side walls 622) top and upper magnetizer 61 cooperate, i.e., there are four magnetic pole strengths for two U-shaped lower magnetizers 62, relatively
For only one magnetic conductive loop (only there are two magnetic pole strengths), the case where the structure feature of lower magnetizer 62 remains unchanged
Under, equivalent to increase two magnetic pole strengths (it is increased for being equivalent to two magnetic pole strengths of lead to the hole site), to improve magnetic effect
Rate increases suction.When 2 failure high current of movable contact spring, two independent magnetic conductive loop, that is, magnetic conductive loop Φ 1 and magnetic conduction are returned
Road Φ generates suction F, goes to resist the electrodynamic repulsion force that fault current generates between movable contact spring and the extraction of quiet spring, to substantially increase
Resistance to shorting electric current (fault current) ability of the invention.
It is limited by structural condition, the magnetic conduction section of magnetic loop is inadequate, and under fault current, a magnetic loop is easily full
With so that suction is not rising.And two magnetic loops of the embodiment of the present invention are equivalent to direction of current flow being divided into two sections
Face area, each cross-sectional area correspond to a shunt current, and shunt current is less than the half of essentially fault current, and magnetic loop will not
There is magnetic saturation, magnetic flux will increase, and generated suction also will increase, return this, two magnetic loops of the present patent application relative to
The resistance to shorting electric current of one magnetic loop of the prior art is equivalent to increase one times, according to the magnitude and magnetic conduction of system failure electric current
Sectional area, magnetic loop can be N number of with array.
The rod member 3 include u-bracket 32, spring base 33 and catch bar 34, the top of the catch bar 34 with
33 phase of spring base is fixed, and the bottom of catch bar 34 then connects dynamic iron core 5, the bottom of the u-bracket 32 and the spring
33 phases of seat are fixed, and u-bracket 32 and spring base 33 surround a frame shape, the movable contact spring 2 and two U-shaped 62 groups of lower magnetizer
At movable spring assembly 20 pass through in the spring 31 is mounted on the u-bracket and spring base 33 surrounds frame shape, wherein dynamic spring
The upper surface of piece 2 against u-bracket 32 top inner wall, spring 31 be elastically against the bottom ends of described two U-shaped lower magnetizers 62 with
Between the top of the spring base 33.
In the present embodiment, the bottom end of described two U-shaped lower magnetizers 62 is further respectively had for positioning determining for the spring
Position column 623, to be positioned in the outside at the top of spring 31 to spring 31 using positioning column 623.It is equipped on spring base 33
For the circular orientation groove 331 of the bottom of retaining spring.
Certainly, the location structure of spring top is also possible to further respectively have in the bottom end of described two U-shaped lower magnetizers
For positioning the half slot of the spring, and two half slots is made to surround a full circle to fit in the top of the spring.
In the present embodiment, two U-shaped lower magnetizers on the length direction of movable contact spring in being arranged side by side, it is of course also possible to
Two U-shaped lower magnetizers are arranged to be dislocation arrangement on the length direction of movable contact spring.
When rod member 3 does not move up, by the effect of spring 31, the upper surface of movable contact spring 2 is against in "-" type and leads
The bottom surface of magnet 61, when rod member 3 is moved to suitable position, the movable contact at 2 both ends of movable contact spring and two stationary contacts
Exit 11,12 is in contact respectively, and then, rod member 3 continues to move up, and magnetizer 61 is also with catch bar in "-" type
Component 3 continues to move up, and movable contact spring 2 is with the bottom end of two stationary contact exits 11,12 due to being in contact, movable contact spring
2 can not continue to move up, and realize the overtravel of contact, and spring 31 provides contact force, the bottom end of magnetizer 61 in "-" type
With form certain gap between the upper surface of movable contact spring 2, also consequently lead in "-" type the bottom surface of magnetizer 61 with it is U-shaped under lead
There are magnetic gap between the top surface of magnet 62.
The DC relay of a kind of resistance to shorting electric current of the invention, using the upper of a predeterminated position in movable contact spring 2
Side is equipped with upper magnetizer 61, is equipped with to be servo-actuated under reed moves together below a predeterminated position of movable contact spring 2 and lead
Magnet 62；And the upper magnetizer 61 is fixed on the rod member 3, the lower magnetizer 62 is fixed on the movable contact spring 2；
At least one through-hole 22 is equipped in the movable contact spring 2 of the predeterminated position, so that upper magnetizer 61 can lead to lower magnetizer 62
It is close to each other or contact with each other to cross the through-hole 22, and by the upper magnetizer 61 and lower magnetizer 62 movable contact spring 2 width
At least two independent magnetic conductive loops of upper formation, to utilize each magnetic conductive loop in the corresponding increased magnetic pole pole of lead to the hole site
Face, in movable contact spring failure high current, increase contact force direction on suction, with contact force be superimposed to
Because of the electrodynamic repulsion force of fault current generation between anti-movable contact and stationary contact；Multiple independent magnetic conductive loops are by Short-Circuit High Current base
Originally divide equally, have magnetic efficiency high, magnetic circuit is not easy the characteristics of being saturated.
A kind of DC relay of resistance to shorting electric current of the invention uses each independent magnetic conductive loop by "-" type
Upper magnetizer and U-shaped lower magnetic conduction mates are formed, and can use identical part, at low cost；And each U-shaped lower magnetizer it
Between there are gaps；Magnetizer is fixed on rod member in "-" type；Specifically, the magnetic conductive loop of the present embodiment is two,
That is, have gap between magnetizer 61 in two "-" types there are two magnetizer 61 and two U-shaped lower magnetizers 62 in "-" type,
Also there is gap between two U-shaped lower magnetizers 62, since two U-shaped lower magnetizers 62 respectively have side wall 622 to be through the logical of movable contact spring
In hole 22, therefore, in the through-hole 22 of movable contact spring, gap is needed between the side wall 622 of two U-shaped lower magnetizers；It is described each
Magnetizer 61 is fixed on the rod member 3, each U-shaped lower magnetic conduction in a manner of rivet or weld respectively in a "-" type
Body 62 is individually fixed in the movable contact spring 2 with riveting method, and the top of the side wall of U-shaped lower magnetizer 2 is exposed to the movable contact spring 2
Upper surface, form the magnetic pole strength of increase, increase suction.This structure of the invention is that movable contact spring 2 is divided into multiple sections
Area generates magnetic flux on multiple magnetic conductive loops, between the magnetizer of each magnetic conductive loop when movable contact spring 2 is by fault current
Suction is generated, which is the increased direction of contact force, for resisting the electrodynamic repulsion force between contact, due to having used multiple lead
Magnetic loop, each circuit is only Imax/n by the fault current contained, so that magnetic circuit is not easy to be saturated, touching bigger by electric current
Point pressure increase is bigger, and the suction that magnetic conductive loop generates is also bigger.
Embodiment two
Referring to shown in Figure 12 to Figure 13, a kind of DC relay of resistance to shorting electric current of the invention, not with embodiment one
It is with place, the upper magnetizer 61 is upper yoke, and upper yoke is affixed to the shell for installing two stationary contact exits
On body, in this way, when (i.e. contact mutually disconnects not in contact with cooperation for the stationary contact of movable contact and stationary contact exit 11,12 of movable contact spring 2
When) when, there are a preset gaps between upper magnetizer 61 (upper yoke) and lower magnetizer 62 (lower armature), and in movable contact spring
2 movable contact is in contact with the stationary contact of stationary contact exit 11,12 when cooperating, and upper magnetizer 61 connects with lower magnetizer 62
Touching, i.e., it is substantially very close to each other between upper magnetizer 61 and lower magnetizer 62.
Embodiment three
Referring to shown in Figure 14 to Figure 16, a kind of DC relay of resistance to shorting electric current of the invention, not with embodiment one
It is with place, magnetic conductive loop is three, and the movable contact spring 2 is set there are two through-hole 22, and three U-shaped lower magnetizers 62 are along dynamic spring
The width sequence of piece 2 arranges, wherein the two sidewalls 621,622 of the U-shaped lower magnetizer 62 of intermediate one are each passed through movable contact spring
Two through-holes 22, each one side wall 621 of the U-shaped lower magnetizer 62 of two of both sides are affixed on the respective side of the width of movable contact spring respectively
Each another side wall 622 on side, the U-shaped lower magnetizer 62 of two of both sides is each passed through two through-holes 22 of movable contact spring, and movable contact spring 2
In same through-hole 22 in two U-shaped lower magnetizers 62 side wall 622 between have gap.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Anyone skilled in the art is not taking off
In the case where from technical solution of the present invention range, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
Mostly possible changes and modifications, or it is revised as equivalents equivalent embodiment.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (22)
1. a kind of DC relay of resistance to shorting electric current, the movable contact spring and one including two stationary contact exits, straight piece type
A rod member, movable contact spring are loaded on rod member, to realize the movable contact at movable contact spring both ends in the case where rod member acts on
It is in contact with the stationary contact of the bottom end of two stationary contact exits, realizes that electric current is flowed into from a stationary contact exit, by dynamic
It is flowed out after reed from another stationary contact exit；It is characterized by: being equipped with edge in the top of a predeterminated position of movable contact spring
The upper magnetizer of the width distribution of movable contact spring, equipped with the width distribution along movable contact spring below the predeterminated position of movable contact spring
And the lower magnetizer that reed moves together can be servo-actuated；At least one through-hole is equipped in the movable contact spring of the predeterminated position, with
Keep magnetizer and lower magnetizer close to each other by the through-hole or contact with each other, and by the upper magnetizer and under lead
Magnet forms at least two independent magnetic conductive loops on the width of movable contact spring, to be led to using each magnetic conductive loop in corresponding
The increased magnetic pole pole-face in hole site generates the suction on contact force direction, goes to resist in movable contact spring failure high current
Because of the electrodynamic repulsion force of fault current generation between movable contact spring and stationary contact exit.
2. the DC relay of resistance to shorting electric current according to claim 1, it is characterised in that: the predeterminated position is dynamic spring
Piece corresponds between two movable contacts in length.
3. the DC relay of resistance to shorting electric current according to claim 1 or 2, it is characterised in that: the upper magnetizer is
Magnetizer at least one "-" type, the lower magnetizer are at least two U-shaped lower magnetizers；Wherein, a U-shaped lower magnetizer
An independent magnetic conductive loop is formed with magnetizer in corresponding "-" type, and under two of two adjacent magnetic conductive loops U-shaped
It is not in contact between magnetizer.
4. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: independent led at least two
In magnetic loop, magnetizer is one, adjacent two shared in the "-" type of two adjacent magnetic conductive loops of at least one group
The U-shaped lower magnetizer of two of magnetic conductive loop is respectively fitting into the lower section of magnetizer in a "-" type.
5. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: independent led at least two
In magnetic loop, magnetizer is independent two in the "-" type of all two adjacent magnetic conductive loops, two adjacent magnetic conductions
The U-shaped lower magnetizer of two of circuit is respectively fitting into the lower section of magnetizer in corresponding "-" type.
6. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the magnetic conductive loop is two
A, the movable contact spring is equipped with a through-hole, and each one side wall of two U-shaped lower magnetizers is affixed on the correspondence of the width of movable contact spring respectively
Side, each another side wall of two U-shaped lower magnetizers are each passed through the same through-hole of movable contact spring, and two U-shaped lower magnetizers
Each another side wall between have gap.
7. the DC relay of resistance to shorting electric current according to claim 6, it is characterised in that: described two U-shaped lower magnetic conductions
Each another side wall of body is distributed in the same through-hole of movable contact spring along the length direction of movable contact spring side by side, make two it is U-shaped under
Two magnetic conductive loops corresponding to magnetizer are distributed side by side along the length direction of movable contact spring.
8. the DC relay of resistance to shorting electric current according to claim 6, it is characterised in that: described two U-shaped lower magnetic conductions
Each another side wall of body is dislocatedly distributed in the same through-hole of movable contact spring along the length direction of movable contact spring, make two it is U-shaped under
Two magnetic conductive loops corresponding to magnetizer are dislocatedly distributed along the length direction of movable contact spring.
9. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the magnetic conductive loop is two
A, the movable contact spring is set there are two through-hole, and two through-holes are distributed side by side on the length direction of movable contact spring, described two U-shaped
Each one side wall of lower magnetizer is affixed on the respective side of the width of movable contact spring respectively, described two U-shaped lower magnetizers it is each another
Side wall is respectively fitting into two through-holes of movable contact spring, makes two magnetic conductive loops corresponding to two U-shaped lower magnetizers along dynamic
The length direction of reed is distributed side by side.
10. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the magnetic conductive loop is two
A, the movable contact spring is set there are two through-hole, and two through-holes are dislocatedly distributed on the length direction of movable contact spring, described two U-shaped
Each one side wall of lower magnetizer is affixed on the respective side of the width of movable contact spring respectively, described two U-shaped lower magnetizers it is each another
Side wall is respectively fitting into two through-holes of movable contact spring, makes two magnetic conductive loops corresponding to two U-shaped lower magnetizers along dynamic
The length direction of reed is dislocatedly distributed.
11. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the magnetic conductive loop is three
A, the movable contact spring is set there are two through-hole, and three U-shaped lower magnetizers are arranged along the width sequence of movable contact spring, wherein intermediate
The two sidewalls of one U-shaped lower magnetizer are each passed through two through-holes of movable contact spring, each side of the U-shaped lower magnetizer of two of both sides
Wall is affixed on the respective side of the width of movable contact spring respectively, and each another side wall of the U-shaped lower magnetizer of two of both sides is each passed through dynamic
Two through-holes of reed, and there is gap between the two side walls in the same through-hole in movable contact spring.
12. the DC relay of resistance to shorting electric current, feature according to any claim in claim 6 to 11 exist
In: the top and the upper surface of the movable contact spring of the side wall of the U-shaped lower magnetizer are substantially concordant.
13. the DC relay of resistance to shorting electric current described in any claim according to claim 1 or in 2 or 4 to 11, special
Sign is: the upper magnetizer is upper armature, and upper armature is fixed on the rod member, and the lower magnetizer is lower armature,
Lower armature is fixed on the movable contact spring, and the movable contact spring is mounted in the rod member by spring, when moving for movable contact spring
When contact is in contact with the stationary contact of stationary contact exit, there are a preset gaps between upper armature and lower armature.
14. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the upper magnetizer is upper
Armature, upper armature are fixed on the rod member, and the lower magnetizer is lower armature, and lower armature is fixed on the movable contact spring,
The movable contact spring is mounted in the rod member by spring, when the movable contact of movable contact spring and the stationary contact of stationary contact exit
When point is in contact, there are a preset gaps between upper armature and lower armature.
15. the DC relay of resistance to shorting electric current according to claim 12, it is characterised in that: the upper magnetizer is upper
Armature, upper armature are fixed on the rod member, and the lower magnetizer is lower armature, and lower armature is fixed on the movable contact spring,
The movable contact spring is mounted in the rod member by spring, when the movable contact of movable contact spring and the stationary contact of stationary contact exit
When point is in contact, there are a preset gaps between upper armature and lower armature.
16. the DC relay of resistance to shorting electric current described in any claim according to claim 1 or in 2 or 4 to 11, special
Sign is: the upper magnetizer be upper yoke, upper yoke ferropexy in be used to two stationary contact exits are installed shell on, it is described
Lower magnetizer is lower armature, and lower armature is fixed on the movable contact spring, and the movable contact spring is mounted on the promotion bar portion by spring
In part, when the movable contact of movable contact spring is in contact with the stationary contact of stationary contact exit, upper yoke is in contact with lower armature.
17. the DC relay of resistance to shorting electric current according to claim 3, it is characterised in that: the upper magnetizer is upper
Yoke, on the shell for being used to install two stationary contact exits, the lower magnetizer is lower armature, lower armature for upper yoke ferropexy
Be fixed on the movable contact spring, the movable contact spring is mounted in the rod member by spring, when movable contact spring movable contact with
When the stationary contact of stationary contact exit is in contact, upper yoke is in contact with lower armature.
18. the DC relay of resistance to shorting electric current according to claim 12, it is characterised in that: the upper magnetizer is upper
Yoke, on the shell for being used to install two stationary contact exits, the lower magnetizer is lower armature, lower armature for upper yoke ferropexy
Be fixed on the movable contact spring, the movable contact spring is mounted in the rod member by spring, when movable contact spring movable contact with
When the stationary contact of stationary contact exit is in contact, upper yoke is in contact with lower armature.
19. the DC relay of resistance to shorting electric current, feature according to any claim in claim 6 to 10 exist
In: the rod member includes u-bracket, spring base and catch bar, and the top of the catch bar is mutually solid with the spring base
Fixed, the bottom of the u-bracket is mutually fixed with the spring base, is moved composed by the movable contact spring and two U-shaped lower magnetizers
Spring component is mounted in the u-bracket by the spring, wherein the upper surface of movable contact spring against u-bracket top inner wall,
Spring is against between the bottom end of described two U-shaped lower magnetizers and the top of the spring base.
20. the DC relay of resistance to shorting electric current according to claim 19, it is characterised in that: it is described two it is U-shaped under lead
The bottom end of magnet further respectively has the half slot for positioning the spring, and two half slots is made to surround a full circle to be adapted to
At the top of the spring.
21. the DC relay of resistance to shorting electric current according to claim 19, it is characterised in that: it is described two it is U-shaped under lead
The bottom end of magnet further respectively has the positioning column for positioning the spring, with right in the outside at the top of spring using positioning column
Spring is positioned.
22. the DC relay of resistance to shorting electric current according to claim 1 or 2, it is characterised in that: in the movable contact spring,
Those widened sections are further respectively had on the both sides for the width for corresponding to lead to the hole site.
Priority Applications (26)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330771.1A CN109559939A (en) | 2018-11-09 | 2018-11-09 | A kind of DC relay of resistance to shorting electric current |
| KR1020237039039A KR102652522B1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| KR1020237039035A KR102652506B1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| KR1020217013254A KR102606473B1 (en) | 2018-11-09 | 2019-11-08 | Direct current relay to prevent short circuit current |
| JP2021524964A JP7341234B2 (en) | 2018-11-09 | 2019-11-08 | DC relay for short circuit current prevention |
| EP23202512.2A EP4300534A3 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| KR1020237039033A KR102652528B1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| KR1020237039044A KR20230159645A (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| KR1020237039041A KR102652524B1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| EP23202501.5A EP4283650A3 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| US17/292,418 US11670472B2 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| EP23202516.3A EP4280246A3 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| EP23202491.9A EP4283649A3 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| EP19881489.9A EP3879553B1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| EP23202507.2A EP4280245A3 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| PCT/CN2019/116808 WO2020094135A1 (en) | 2018-11-09 | 2019-11-08 | Direct-current relay resistant to short-circuit current |
| US18/305,373 US20230260730A1 (en) | 2018-11-09 | 2023-04-23 | Direct-current relay capable of extinguishing arc and resisting short-circuit current |
| US18/305,376 US20230260731A1 (en) | 2018-11-09 | 2023-04-23 | Direct-current relay having a function of extinguishing arc and resisting short-circuit current |
| US18/305,379 US20230260733A1 (en) | 2018-11-09 | 2023-04-24 | Direct-current relay having a function of extinguishing arc and resisting short-circuit current |
| US18/305,378 US20230260732A1 (en) | 2018-11-09 | 2023-04-24 | Direct-current relay capable of extinguishing arc and resisting short-circuit current |
| US18/305,380 US20230260734A1 (en) | 2018-11-09 | 2023-04-24 | Direct-current relay capable of extinguishing arc and resisting short-circuit current |
| JP2023134137A JP2023154099A (en) | 2018-11-09 | 2023-08-21 | Dc relay for preventing short-circuit current |
| JP2023134138A JP2023154100A (en) | 2018-11-09 | 2023-08-21 | Dc relay for preventing short-circuit current |
| JP2023134139A JP2023154101A (en) | 2018-11-09 | 2023-08-21 | Dc relay for preventing short-circuit current |
| JP2023134135A JP2023154097A (en) | 2018-11-09 | 2023-08-21 | Dc relay for preventing short-circuit current |
| JP2023134136A JP2023154098A (en) | 2018-11-09 | 2023-08-21 | Dc relay for preventing short-circuit current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330771.1A CN109559939A (en) | 2018-11-09 | 2018-11-09 | A kind of DC relay of resistance to shorting electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109559939A true CN109559939A (en) | 2019-04-02 |
Family
ID=65866149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330771.1A Pending CN109559939A (en) | 2018-11-09 | 2018-11-09 | A kind of DC relay of resistance to shorting electric current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109559939A (en) |
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| WO2020094135A1 (en) * | 2018-11-09 | 2020-05-14 | 厦门宏发电力电器有限公司 | Direct-current relay resistant to short-circuit current |
| WO2023036062A1 (en) * | 2021-09-10 | 2023-03-16 | 厦门宏发电力电器有限公司 | High-voltage direct current (dc) relay capable of enhancing arc extinguishing capability |
| EP4086931A4 (en) * | 2019-12-31 | 2023-12-27 | Xiamen Hongfa Electric Power Controls Co., Ltd. | Short circuit current-resistant and arc-extinguishing dc relay |
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