CN207542152U - A kind of high-voltage relay of resistance to transient high-current impact - Google Patents
A kind of high-voltage relay of resistance to transient high-current impact Download PDFInfo
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- CN207542152U CN207542152U CN201721387275.0U CN201721387275U CN207542152U CN 207542152 U CN207542152 U CN 207542152U CN 201721387275 U CN201721387275 U CN 201721387275U CN 207542152 U CN207542152 U CN 207542152U
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- electric current
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Abstract
This disclosure relates to a kind of high-voltage relay of resistance to transient high-current impact, including electromagnetic system, control system, contact system and base support；The disclosure utilizes the electromagnetic force that contact system generates, and can solve the problems, such as that contact reprimand is caused to be opened due to the electrodynamic repulsion force that transient high-current generates.
Description
Technical field
The utility model is related to a kind of high-voltage relay, more particularly to a kind of high-voltage relay of resistance to transient high-current impact
Device.
Background technology
Electromagnetic relay is a kind of electromechanical compo, is widely used in Electric control, industrial automation arrangement and household electrical appliance
Deng.It is actually to go control larger current, one kind of high voltage " automatic switch " with smaller electric current, relatively low voltage,
The effects that playing automatic adjustment, safeguard protection, conversion circuit in circuit.
It is mostly one-to-many power supply mode in communication system HVDC (high-voltage DC power supply) distribution, when a certain branch occurs
Busbar voltage can be caused to fall during failure (failure of insulation, short circuit are when abnormal), lead to other normal branch power-off problems, to be promoted
HVDC (high-voltage DC power supply) power supply reliability needs a can support when the generation event of HVDC (high-voltage DC power supply) branch
The miniaturized relays of the fast automatic insulation request of branch during barrier.Meanwhile communication system HVDC (high-voltage DC power supply) relay
Applying working condition is outdoor communication facility, so having higher requirements to lightning protection rush of current.
The existing electromagnetic relay of straight chip type conductive sheet used, when there is transient high-current, the electrodynamic repulsion force between contact
Contact end pressure can be much larger than, contact reprimand be made to open and generate hard arc, contact, which is melted when generating TRANSIENT HIGH TEMPERATURE, burns.Electromagnetism after
Electrical Appliances Designing mainly using Lorentz force principle, existing publication mainly using can the deflection of movable contact spring touched to dynamic and static
Point applies contact pressure, and the deflection of distance and reed between the short circuit current size that can be resisted and two reeds is closely related,
It is difficult to be suitable for larger dash current using the mode that reed deforms；Contact separation is realized by reed deformation, it is difficult to be met
Larger dash current can be resisted and breaking speed is limited；The rigidity of reed, the factors such as deformation, fatigue for mechanical life and
Electric life has a serious impact；Meanwhile reed is more demanding to processing technology and the material property of reed determines disconnection shape
Opening away from limited between dynamic and static contact under state, limits the promotion of its applying working condition voltage class and the resistance to voltage levels of insulation.
Utility model content
For above deficiency, the utility model provides a kind of high-voltage relay of resistance to transient high-current impact, by reasonable
Contact structure and control system are designed, can realize the quick disjunction of electric current, while improve by the increase of dynamic and static contact spacing
Resistance to voltage levels.
A kind of high-voltage relay of resistance to transient high-current impact, including：Electromagnetic system, control system, contact system and bottom
Seat support 3；Wherein, the electromagnetic system is connected with control system, and driving force is provided for the control system for generating magnetic field；
The control system is connected with the contact system, for manipulating the actuation and separation of contact in contact system；The contact system
System generates electromagnetic force when the high-voltage relay passes through transient high-current, to offset the electrodynamic repulsion force between contact；
The electromagnetic system includes yoke 1, coil rack 2, dynamic iron core 9 and static iron core 10；Wherein, the coil rack 2
It is fixed on the outside of the dynamic iron core 9 and static iron core 10；The yoke 1 is wrapped in dynamic iron core 9, static iron core 10 and coil rack 2
The upper and lower and left and right sides, form magnetic circuit；
The control system includes transmission shaft 8, touch spring 11, resetting spring 12 and moving contact rack 15；Wherein, it is described
Touch spring 11, resetting spring 12 are wound on transmission shaft 8, the transmission shaft 8 pass through the moving contact rack 15, and with institute
Moving contact rack 15 is stated to connect by clamp spring；
The contact system includes electric current and flows into piece 4, dynamic copper sheet 5, connector 6, electric current outflow piece 7, movable contact 13, stationary contact
Point 14 and waist round hole 16；Wherein, the electric current flows into piece 4 and electric current outflow piece 7 is fixed on base support 3；The movable contact
13 are fixed on dynamic copper sheet 5, and the stationary contact 14 is fixed on electric current outflow piece 7；Connector (6) riveting is welded on electricity
Stream is flowed on piece (4) and dynamic copper sheet (5)；
The dynamic iron core 9 and static iron core 10 are annular hollow, and material is permeability magnetic material, and has fixed air gap；
The dynamic iron core 9 drives transmission shaft 8 to move after high-voltage relay energization, makes moving contact rack 15 and dynamic copper
Piece 5 is moved to the direction of contact closure；
The touch spring 11 enables 14 reliable contacts of movable contact 13 and stationary contact for providing contact force；
The resetting spring 12 is used to moving contact rack 15 be driven to make movable contact 13 and stationary contact 14 fast by transmission shaft 8
Speed separation；
Generation that the electric current flows into piece 4 and dynamic copper sheet 5 interacts when the high-voltage relay passes through transient high-current
Magnetic field makes copper sheet 5 generate the electromagnetic force opposite with contact electrodynamic repulsion force direction；
The excess of stroke is equipped between the movable contact 13 and stationary contact 14.
Compared with prior art, the advantageous effects that the utility model is brought are：
The utility model leads on the basis of not increasing the appearance and size of product and not increasing the power consumption of coil control section
Rational design contact structure and control system are crossed, can realize the quick disjunction of electric current, while passes through the increasing of dynamic and static contact spacing
Resistance to voltage levels are improved greatly, are more applicable for high voltage condition.Moreover, the heterodrome that copper sheet and dynamic copper sheet are flowed into using electric current is produced
Raw electromagnetic force resists the electrodynamic repulsion force that transient high-current generates between sound contact.The relay construction is compact, and impact resistance is shaken
Dynamic performance is strong, and electric life and mechanical life are high, cheap, can be with mass production.
Description of the drawings
Fig. 1 is a kind of high-voltage relay structure diagram of resistance to transient high-current impact in this example；Wherein, 1 is yoke,
2 be coil rack, and 3 be base support, and 4 flow into piece for electric current, and 5 be dynamic copper sheet, and 6 are flexible coupling, and 7 flow out piece for electric current, and 8 is pass
Moving axis, 9 be dynamic iron core, and 10 be static iron core, and 11 be touch spring, 12 resetting springs, and 13 be movable contact, and 14 be stationary contact, 15
It is waist round hole for moving contact rack, 16；
Fig. 2 is the contact closure schematic diagram of the contact system of Fig. 1；
Fig. 3 is the dynamic copper sheet of Fig. 1 and the structure diagram of moving contact rack.
Specific embodiment
The technical solution of the utility model is described in detail with reference to the accompanying drawings and examples.
It is a kind of high-voltage relay of resistance to transient high-current impact of the present embodiment, including electromagnetic system, behaviour with reference to Fig. 1
Control system and contact system and base support 3.Electromagnetic system includes yoke 1, coil rack 2, coil (not shown), moves iron
Core 9 and static iron core 10.Control system includes transmission shaft 8, touch spring 11, resetting spring 12 and moving contact rack 15.Contact system
System includes electric current and flows into piece 4, dynamic copper sheet 5, connecting component 6, electric current outflow piece 7, movable contact 13 and stationary contact 14.The present embodiment
In, touch spring 11 and resetting spring 12 are wound on transmission shaft 8, sequentially passes through dynamic iron core 9 and static iron core 10, it is preferable that is dynamic
Iron core 9 and static iron core 10 are annular hollow, and material is permeability magnetic material, and has fixed air gap.Transmission shaft 8 also extends through moving contact rack
15 and it is connected with moving contact rack 15 by clamp spring.Dynamic iron core 9 and quiet is fixed on covered with insulating layer in 2 surface of coil rack
The outside of iron core 10.Yoke 1 is wrapped in the upper and lower and left and right sides of dynamic iron core 9, static iron core 10 and coil rack 2, forms magnetic circuit.
Electric current flows into piece 4 and electric current outflow piece 7 is both secured on base support 3, and dynamic copper sheet 5 is fixed on moving contact rack 15, is moved and is touched
Point 13 is fixed on dynamic copper sheet 5, and stationary contact 14 is fixed on electric current outflow piece 7, and electric current flows into piece 4 and dynamic copper sheet 5 by soft
6 (are flexible coupling using copper or aluminium is flexible coupling) connection is connected, is flexible coupling one of 6 and is welded or be riveted on electric current and flow on piece 4, it is another
Head welding is riveted on dynamic copper sheet 5.
By using above structure, after coil is powered, dynamic iron core 9 is under magnetic fields caused by coil towards air gap
The direction movement of reduction, while by driving transmission shaft 8 that electric current is made to flow into piece 4 and moving contact rack 15 and be fixed thereon
Dynamic copper sheet 5 moved to the direction of contact closure, the direction of motion be contact section normal orientation.During the motion, pass through line
Circle and dynamic iron core 9 manipulate transmission shaft 8 so as to push moving contact rack 15, while compression contacts spring 11 and resetting spring 12, touch
Head spring 11 is applied pressure on moving contact rack 15, so as to make 14 reliable contacts of movable contact 13 and stationary contact.Work as movable contact
13 and stationary contact 14 be attracted after, touch spring 11 provide a suitable contact force, as shown in Fig. 2, contact can stablize
It is closed.To ensure the service life of contact, certain excess of stroke is equipped between movable contact 13 and stationary contact 14.It is in addition, dynamic to be further ensured that
14 reliable contacts of contact 13 and stationary contact are set among moving contact rack 15 there are one waist round hole 16, as shown in figure 3, being touched for dynamic
Head bracket 15 is finely adjusted in smaller range, is conducive to the preferable contact of movable contact 13 and stationary contact 14.
It is possible that high-voltage relay is by the situation of transient high-current after coil is powered, at this point, since electric current flows into
Piece 4 and 5 current direction of dynamic copper sheet are opposite and interact and generate magnetic field, and dynamic copper sheet 5 generates electromagnetic force under the influence of a magnetic field, should
Electromagnetic force is opposite with contact electrodynamic repulsion force direction and is applied on movable contact 13 and stationary contact 14 by moving contact rack 15, avoids
Dynamic copper sheet 5 generates deformation.The present embodiment by rationally set dynamic copper sheet 5 length and mounting means so that generated electromagnetism
Power is completely counterbalanced by contact electrodynamic repulsion force.
After coil power down, under the action of resetting spring 12, transmission shaft 8 drives moving contact rack 15 to make movable contact 13 and quiet
14 quick separating of contact, so as to fulfill quick disjunction.For electric arc is made to extinguish as early as possible, the present embodiment is equipped with forever in contact region both sides
Magnetic sheet makes electric arc elongate extinguishing rapidly to blow electric arc.
The control system of the present embodiment design can manipulate connecing for dynamic and static contact well in the case of relay power
It touches, and by setting certain excess of stroke between contact, can effectively ensure that the service life of contact；When relay meets with transient high-current
Impact when, contact system utilize the dynamic and static contact of generated magnetic field cancellation between electrodynamic repulsion force, avoid relay interior arrangement
Generate deformation.After relay power down, control system drives dynamic and static contact to realize quick disjunction.
Although the utility model has been disclosed with preferred embodiment as above, the utility model is not limited to, it is any
Those skilled in the art are not being departed from the range of technical solutions of the utility model, when the technology using the disclosure above
Content makes a little change or is modified to the equivalent embodiment of equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and the modification that foundation the technical essence of the utility model makees above example, still
Belong in the range of technical solutions of the utility model.
Claims (10)
1. a kind of high-voltage relay of resistance to transient high-current impact, including：Electromagnetic system, control system, contact system and pedestal
Stent (3)；Wherein, the electromagnetic system is connected with control system, and driving force is provided for the control system for generating magnetic field；
The control system is connected with the contact system, for manipulating the actuation and separation of contact in contact system；The contact system
System generates electromagnetic force when the high-voltage relay passes through transient high-current, to offset the electrodynamic repulsion force between contact.
2. high-voltage relay according to claim 1, it is characterised in that：The electromagnetic system includes yoke (1), coil bone
Frame (2), dynamic iron core (9) and static iron core (10)；Wherein, the coil rack (2) is fixed on the dynamic iron core (9) and static iron core
(10) outside；The yoke (1) is wrapped in the upper and lower of dynamic iron core (9), static iron core (10) and coil rack (2) and left and right two
Side forms magnetic circuit.
3. high-voltage relay according to claim 1, it is characterised in that：The control system includes transmission shaft (8), contact
Spring (11), resetting spring (12) and moving contact rack (15) and waist round hole (16)；Wherein, the touch spring (11), reset
Spring (12) is wound on transmission shaft (8), and the transmission shaft (8) is touched across the moving contact rack (15), and with described move
Head bracket (15) is connected by clamp spring；The waist round hole (16) is set to the centre of the moving contact rack (15).
4. high-voltage relay according to claim 1, it is characterised in that：The contact system include electric current flow into piece (4),
Dynamic copper sheet (5), connector (6), electric current outflow piece (7), movable contact (13), stationary contact (14)；Wherein, the electric current flows into piece
(4) it is fixed on base support (3) with electric current outflow piece (7)；The movable contact (13) is fixed on dynamic copper sheet (5), described quiet
Contact (14) is fixed on electric current outflow piece (7)；Connector (6) riveting is welded on electric current inflow piece (4) and dynamic copper sheet
(5) on.
5. high-voltage relay according to claim 2, it is characterised in that：The dynamic iron core (9) and static iron core (10) are ring
Shape is hollow, and material is permeability magnetic material, and has fixed air gap.
6. the high-voltage relay according to claim 2 or 5, it is characterised in that：The dynamic iron core (9) is in the high-voltage relay
Device drives transmission shaft (8) to move after being powered, and moving contact rack (15) and dynamic copper sheet (5) is made to be moved to the direction of contact closure.
7. high-voltage relay according to claim 3, it is characterised in that：The touch spring (11) is pressed for providing contact
Power makes movable contact (13) and stationary contact (14) being capable of reliable contacts.
8. high-voltage relay according to claim 3, it is characterised in that：The resetting spring (12) is for passing through transmission shaft
(8) moving contact rack (15) is driven to make movable contact (13) and stationary contact (14) quick separating.
9. high-voltage relay according to claim 4, it is characterised in that：The electric current flows into piece (4) and dynamic copper sheet (5) exists
Interaction generates magnetic field when the high-voltage relay passes through transient high-current, and copper sheet (5) is made to generate and contact electrodynamic repulsion force
The opposite electromagnetic force in direction.
10. high-voltage relay according to claim 4, it is characterised in that：The movable contact (13) and stationary contact (14) it
Between be equipped with the excess of stroke.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387275.0U CN207542152U (en) | 2017-10-25 | 2017-10-25 | A kind of high-voltage relay of resistance to transient high-current impact |
| PCT/CN2018/109552 WO2019080709A1 (en) | 2017-10-25 | 2018-10-10 | High-voltage relay resistant to instantaneous great-current impact |
| JP2020543672A JP6958882B2 (en) | 2017-10-25 | 2018-10-10 | High voltage relay that is resistant to the effects of momentary high current |
| EP18869509.2A EP3690917B1 (en) | 2017-10-25 | 2018-10-10 | High-voltage relay resistant to instantaneous great-current impact |
| DE202018006505.6U DE202018006505U1 (en) | 2017-10-25 | 2018-10-10 | High voltage relay that is resistant to momentary high current surges |
| US16/858,314 US11289280B2 (en) | 2017-10-25 | 2020-04-24 | High voltage relay resistant to instantaneous high-current impact |
| US17/684,093 US11694856B2 (en) | 2017-10-25 | 2022-03-01 | High voltage relay resistant to instantaneous high-current impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387275.0U CN207542152U (en) | 2017-10-25 | 2017-10-25 | A kind of high-voltage relay of resistance to transient high-current impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207542152U true CN207542152U (en) | 2018-06-26 |
Family
ID=62610984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721387275.0U Active CN207542152U (en) | 2017-10-25 | 2017-10-25 | A kind of high-voltage relay of resistance to transient high-current impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207542152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706055A (en) * | 2017-10-25 | 2018-02-16 | 西安交通大学 | A kind of high-voltage relay of resistance to transient high-current impact |
| WO2019080709A1 (en) * | 2017-10-25 | 2019-05-02 | 西安交通大学 | High-voltage relay resistant to instantaneous great-current impact |
-
2017
- 2017-10-25 CN CN201721387275.0U patent/CN207542152U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706055A (en) * | 2017-10-25 | 2018-02-16 | 西安交通大学 | A kind of high-voltage relay of resistance to transient high-current impact |
| WO2019080709A1 (en) * | 2017-10-25 | 2019-05-02 | 西安交通大学 | High-voltage relay resistant to instantaneous great-current impact |
| CN107706055B (en) * | 2017-10-25 | 2020-07-28 | 西安交通大学 | High-voltage relay resistant to instantaneous large current impact |
| US11289280B2 (en) | 2017-10-25 | 2022-03-29 | Xi'an Jiaotong University | High voltage relay resistant to instantaneous high-current impact |
| US11694856B2 (en) | 2017-10-25 | 2023-07-04 | Xi'an Jiaotong University | High voltage relay resistant to instantaneous high-current impact |
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