CN207338255U - Galvanic circle with electric power compensation function - Google Patents
Galvanic circle with electric power compensation function Download PDFInfo
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- CN207338255U CN207338255U CN201721210090.2U CN201721210090U CN207338255U CN 207338255 U CN207338255 U CN 207338255U CN 201721210090 U CN201721210090 U CN 201721210090U CN 207338255 U CN207338255 U CN 207338255U
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- contact
- horizontal segment
- copper bar
- splitter
- vertical section
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Abstract
The utility model provides a kind of galvanic circle with electric power compensation function, reed and a pair of of silver contact including splitter, on splitter, a silver contact in a pair of of silver contact is in contact with reed, it is characterized in that, further include inlet wire copper bar and outlet copper bar, inlet wire copper bar is in contact with another silver contact in a pair of of silver contact, outlet copper bar is in contact with splitter and reed, inlet wire copper bar at least has one section of horizontal segment one parallel with splitter, and outlet copper bar at least has one section of horizontal segment two parallel with splitter.The utility model increases by one section and moving contact reed and the approximately parallel conducting wire of splitter, to increase moving contact reed and the electric power suffered by splitter, so as to meet that contact is not denounceed out under transient high-current.
Description
Technical field
Magnetic latching relay main conductive circuit and contact system are the utility model is related to, belongs to low voltage electrical apparatus technology field.
Background technology
Magnetic latching relay is a kind of automatic switch, including pedestal, magnetic circuit system and contact system.Wherein, magnetic circuit system
Including coil, permanent-magnet steel, contact system includes movable contact spring, splitter, moving contacting plate, quiet contact chip, shrapnel, movable contact and quiet
Contact.The function of electromagnetic relay is the small-power movement armature with electromagnet, and the armature can switch much bigger power.
Unlike other electromagnetic relays, the normally closed or normally open of magnetic latching relay is entirely to rely on the work of permanent-magnet steel
With the conversion of its on off state is to lean on to make its switching by leading to positive and negative direct current to coil.
Magnetic latching relay is realized the connection of main circuit by the contact of sound contact in contact system and cut-off with separating.
Magnetic latching relay is a kind of control electric appliance, it is desirable to which under conditions of control circuit current direction does not change, main circuit is continuous
Open.But when producing instantaneous short-circuit high current in main circuit, very big holm power is produced between sound contact.Holm power is electricity
Dynamic repulsion, forces sound contact separation, and transient current is bigger, and holm power is bigger, to the reliability prestige of sound contact
The side of body is bigger.Under transient high-current, the separation of sound contact can produce hard arc, and contact melting easily occurs with burning, so as to drop
The service life of low relay.Design this requires magnetic circuit system and contact system is meeting the normal contact in sound contact and is dividing
From under conditions of, increase contact pressure as far as possible, particularly under the conditions of transient high-current.
The function description of magnetic latching relay：The connection and disjunction of control circuit, do not possess protection (short circuit, overload etc.) work(
Can, it requires with certain tolerance in short-term, typically by the mode of dynamoelectric force compensating circuit, increase contact pressure
To realize.But traditional dynamoelectric force compensating circuit often occurs dynamic in actual use since the surplus of compensation is smaller
Stationary contact reprimand is opened and burns product, and the security incidents such as fire occur, and is improved by way of increasing contact pressure resistance in short-term
It is also very limited by ability, and to magnetic power consumption can be kept to bring increase, it is unfavorable for the energy saving needs of product.
A kind of contact system is disclosed in Chinese patent CN204668248U (publication date is on July 9th, 2015), including is set
There are the stationary plate of stationary contact and the movable contact spring equipped with movable contact, splitter is wherein additionally provided with movable contact spring, one end of movable contact spring is with dividing
The corresponding end of flow is fixedly connected, and the other end of movable contact spring and the impeller of magnetic latching relay are drivingly connected, and described pushes away
Moving part can be driven movable contact spring to drive splitter to swing by the electromagnetic system of magnetic latching relay and realize movable contact and stationary contact
Division.Cavity feature is additionally provided with movable contact spring, the end that movable contact is provided with the cavity feature and splitter is correspondingly arranged, and
And movable contact spring drive splitter swing make movable contact and stationary contact can continue after closing movable contact toward stationary contact direction movement from
And produce overtravel.The contact system closing course is stablized, service life length, and mounting structure is simple.
Disclose in magnetic latching relay and promote in Chinese patent CN202996731U (publication date is on June 12nd, 2013)
A kind of new dislocation fit system between block and dynamic spring.In contact system, the root of dynamic spring is fixed, and movable contact is fixed on dynamic spring
The other end, the end of dynamic spring is engaged with pushing block；Pushing block be equipped with the matched first connecting portion of dynamic spring, first
It is equipped with what is be in contact when the first application point being in contact during the actuating of relay with dynamic spring and relay reset with dynamic spring in connecting portion
Second application point；The connection of first application point and second application point deviates the moving direction of pushing block, and second makees
With the position of the position of point than the first application point closer to movable contact.After the structure, the action of relay both can guarantee that
During, contact portion has certain overtravel and dynamic circuit connector pressure；, can rapidly, effectively again so that during relay involution
Ground disconnects contact system, so as to improve relay performance.
In dynamic/static contact closure state, contact force that reed provides be it is stable, will not be with the increase of operating current
And increase.Above-mentioned two patents increase by varying movable contact spring structure with the fit system of change pushing block and movable contact spring respectively
Overtravel and contact precompression, but when transient short-circuit current is king-sized, holm power (repulsion) increment is big, existing structure
The making a concerted effort to be not enough to of electric power (pressure) between corresponding reed pressure and conducting wire holm power is balanced, cause sound contact to be denounceed
Open, produce hard arc, melting occurs for contact with burning, so as to reduce the service life of relay.
As shown in Figure 1, being existing galvanic circle schematic diagram, the electric current right side goes out into a left side, inlet wire copper bar 1 and splitter 2 and reed 3
It is in contact, reed 3 provides 3N contact precompressions in closure state, and one in a pair of of silver contact 4 is in contact with reed 3, another
It is a to be in contact with outlet copper bar 5.The shape and contact conditions of a pair of of silver contact 4 directly affect the size of holm power.
The content of the invention
The purpose of this utility model is：Improve the mechanism of galvanic circle, holm power is offset using Lorentz force (pressure)
(repulsion), ensures that contact is not denounceed out when transient high-current occurs.
In order to achieve the above object, the technical solution of the utility model there is provided a kind of with electric power compensation function
Galvanic circle, including splitter, the reed on splitter and a pair of of silver contact, a silver contact in a pair of of silver contact with
Reed is in contact, it is characterised in that further includes inlet wire copper bar and outlet copper bar, inlet wire copper bar and another in a pair of of silver contact
Silver contact is in contact, and outlet copper bar is in contact with splitter and reed, and inlet wire copper bar is at least parallel with splitter with one section
Horizontal segment one, outlet copper bar at least has one section of horizontal segment two parallel with splitter.
Preferably, the inlet wire copper bar includes horizontal segment one, vertical section and horizontal segment three, and one end of horizontal segment one is electric current
Entrance, the other end connect horizontal segment three by vertical section, and horizontal segment three is in contact with the silver contact, is provided with vertical section logical
Kong Yi；
The outlet copper bar includes the transition connection section and the water for being in contact with the splitter and the reed
Flat section two, one end connection transition connection section of horizontal segment two, the other end of horizontal segment two is electricity outlet, from inlet wire copper bar
Through hole one is pierced by.
Preferably, the inlet wire copper bar includes vertical section one, horizontal segment one, vertical section two and horizontal segment three, vertical section one
One end be current entry, other end connection horizontal segment one, horizontal segment one passes through vertical section two and connects horizontal segment three, horizontal segment three
It is in contact with the silver contact, through hole two is provided with horizontal segment one；
The outlet copper bar includes being used for transition connection section, the level being in contact with the splitter and the reed
Section two and vertical section three, one end connection transition connection section of horizontal segment two, other end connection vertical section three, vertical section three is from inlet wire
Through hole two on copper bar passes through, and the end of vertical section three is electricity outlet.
Preferably, the inlet wire copper bar includes vertical section one, horizontal segment one, vertical section two and horizontal segment three, vertical section one
One end be current entry, other end connection horizontal segment one, horizontal segment one passes through vertical section two and connects horizontal segment three, horizontal segment three
It is in contact with the silver contact；
The outlet copper bar includes being used for transition connection section, the level being in contact with the splitter and the reed
Section two, changeover portion and vertical section three, one end connection transition connection section of horizontal segment two, other end connection changeover portion, the outlet
Copper bar gets around the inlet wire copper bar by changeover portion, and one end connection changeover portion of vertical section three, the other end of vertical section three is electricity
Flow export.
Electrodynamic direction is determined by ampere left hand rule suffered by conducting wire, if two two current carrying wires current directions are identical,
Then suction is produced between conducting wire；If current direction on the contrary, if produce repulsion between conducting wire, electric current is bigger, and suction or repulsion are bigger.
The utility model is based on the principle that above-mentioned heterodrome makes parallel wire repel each other, from increase moving contact reed
Set out with the angle of suffered Lorentz force on splitter, one section of increase and moving contact reed and the approximately parallel conducting wire of splitter,
To increase moving contact reed and the electric power suffered by splitter, so as to meet that contact is not denounceed out under transient high-current.
Brief description of the drawings
Fig. 1 is existing galvanic circle schematic diagram；
Fig. 2 is the front view of the galvanic circle in embodiment 1；
Fig. 3 is the schematic perspective view of Fig. 2；
Fig. 4 is the front view of the galvanic circle in embodiment 2；
Fig. 5 is the schematic perspective view of Fig. 4；
Fig. 6 is the front view of the galvanic circle in embodiment 3；
Fig. 7 is the schematic perspective view of Fig. 6.
Embodiment
To become apparent the utility model, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Embodiment 1
As shown in Figures 2 and 3, a kind of galvanic circle disclosed in the present embodiment includes splitter 2, reed 3, a pair of of silver contact
4th, inlet wire copper bar 6 and outlet copper bar 7.Inlet wire copper bar 6 in the present embodiment is in contact with one in a pair of of silver contact 4, approximate
Take the shape of the letter U, so as to there is one section of horizontal segment parallel with splitter 2.There is a through hole on inlet wire copper bar 6.
Outlet copper bar 7 in the present embodiment is in contact with splitter 2 and reed 3, and outlet copper bar 7 also has one section and splitter
2 parallel horizontal segments, outlet copper bar 7 are pierced by from the through hole on inlet wire copper bar 6.
Arrow in Fig. 2 and Fig. 3 illustrates the flow direction of electric current, it may be determined that the electric current on the horizontal segment of inlet wire copper bar 6
Flow direction with the current direction on splitter 2 on the contrary, moreover, current direction on the horizontal segment of outlet copper bar 7 with splitter 2
Current direction is also opposite.Therefore, inlet wire copper bar 6 and outlet copper bar 7 can produce splitter 2 upward Lorentz force, so that
Contact pressure is converted to, ensure that a pair of of silver contact 4 is not denounceed out under transient high-current.
Embodiment 2
With reference to Fig. 4 and Fig. 5, difference lies in inlet wire copper bar 8 and outlet in the present embodiment with embodiment 1 for the present embodiment
The shape of copper bar 9 and the inlet wire copper bar 6 and the difference of the shape of outlet copper bar 7 in embodiment 1.Galvanic circle in the present embodiment
It can meet the requirement gone out under electric current under.For this reason, the shape of inlet wire copper bar 8 is approximately S-shaped, and the shape of outlet copper bar 9 is near
It is seemingly L-shaped.The through hole passed through for outlet copper bar 9 is equally provided with inlet wire copper bar 8.Arrow in Fig. 4 and Fig. 5 is equally illustrated
The flow direction of electric current is gone out.
The other structures and operation principle of the present embodiment are the same as embodiment 1.
Embodiment 3
With reference to Fig. 6 and Fig. 7, difference lies in outlet copper bar 11 is not directly from inlet wire copper bar with embodiment 2 for the present embodiment
Passed through in 10, but a transition bent angle bent downward by horizontal direction, outlet copper bar are formed on outlet copper bar 11
11 can get around inlet wire copper bar 10 by this transition bent angle.Arrow in Fig. 6 and Fig. 7 equally illustrates the flow direction of electric current.
The other structures and operation principle of the present embodiment are the same as embodiment 2.
Claims (4)
1. a kind of galvanic circle with electric power compensation function, including splitter, the reed on splitter and a pair of of silver
Contact, a silver contact in a pair of of silver contact are in contact with reed, it is characterised in that further include inlet wire copper bar and outlet copper
Row, inlet wire copper bar are in contact with another silver contact in a pair of of silver contact, and outlet copper bar is in contact with splitter and reed, into
Line copper bar at least has one section of horizontal segment one parallel with splitter, and outlet copper bar is at least parallel with splitter with one section
Horizontal segment two.
A kind of 2. galvanic circle with electric power compensation function as claimed in claim 1, it is characterised in that the inlet wire copper
Row includes horizontal segment one, vertical section and horizontal segment three, and one end of horizontal segment one is current entry, and the other end is connected by vertical section
Horizontal segment three, horizontal segment three are in contact with the silver contact, and through hole one is provided with vertical section；
The outlet copper bar includes the transition connection section and the horizontal segment for being in contact with the splitter and the reed
Two, one end of horizontal segment two connection transition connection section, the other end of horizontal segment two is electricity outlet, the through hole from inlet wire copper bar
One is pierced by.
A kind of 3. galvanic circle with electric power compensation function as claimed in claim 1, it is characterised in that the inlet wire copper
Row includes vertical section one, horizontal segment one, vertical section two and horizontal segment three, and one end of vertical section one is current entry, and the other end connects
Horizontal segment one is connect, horizontal segment one connects horizontal segment three by vertical section two, and horizontal segment three is in contact with the silver contact, in level
Through hole two is provided with section one；
The outlet copper bar includes being used for transition connection section, the horizontal segment two being in contact with the splitter and the reed
And vertical section three, one end connection transition connection section of horizontal segment two, other end connection vertical section three, vertical section three is from inlet wire copper bar
On through hole two pass through, the end of vertical section three is electricity outlet.
A kind of 4. galvanic circle with electric power compensation function as claimed in claim 1, it is characterised in that the inlet wire copper
Row includes vertical section one, horizontal segment one, vertical section two and horizontal segment three, and one end of vertical section one is current entry, and the other end connects
Horizontal segment one is connect, horizontal segment one connects horizontal segment three by vertical section two, and horizontal segment three is in contact with the silver contact；
The outlet copper bar includes the transition connection section for being in contact with the splitter and the reed, the horizontal segment
2nd, changeover portion and vertical section three, one end connection transition connection section of horizontal segment two, other end connection changeover portion, the outlet copper
Row gets around the inlet wire copper bar by changeover portion, and one end connection changeover portion of vertical section three, the other end of vertical section three is electric current
Outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210090.2U CN207338255U (en) | 2017-09-19 | 2017-09-19 | Galvanic circle with electric power compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721210090.2U CN207338255U (en) | 2017-09-19 | 2017-09-19 | Galvanic circle with electric power compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207338255U true CN207338255U (en) | 2018-05-08 |
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ID=62369127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721210090.2U Active CN207338255U (en) | 2017-09-19 | 2017-09-19 | Galvanic circle with electric power compensation function |
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| CN (1) | CN207338255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285732A (en) * | 2018-11-30 | 2019-01-29 | 武汉长海电气科技开发有限公司 | D.C. contactor and its structure of contact terminal |
-
2017
- 2017-09-19 CN CN201721210090.2U patent/CN207338255U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285732A (en) * | 2018-11-30 | 2019-01-29 | 武汉长海电气科技开发有限公司 | D.C. contactor and its structure of contact terminal |
| CN109285732B (en) * | 2018-11-30 | 2024-02-13 | 武汉长海电气科技开发有限公司 | DC contactor and contact structure thereof |
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