CN201063319Y - Inhalation type magnetic pole structure for relay - Google Patents
Inhalation type magnetic pole structure for relay Download PDFInfo
- Publication number
- CN201063319Y CN201063319Y CNU2007200023916U CN200720002391U CN201063319Y CN 201063319 Y CN201063319 Y CN 201063319Y CN U2007200023916 U CNU2007200023916 U CN U2007200023916U CN 200720002391 U CN200720002391 U CN 200720002391U CN 201063319 Y CN201063319 Y CN 201063319Y
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- Prior art keywords
- relay
- magnetic pole
- magnetic
- field structure
- iron core
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a suction type magnetic pole structure used for relays which is used in the electromagnetic systems of magnetic retaining relays. The suction type magnetic pole structure comprises a magnetic conducting yoke iron, an iron core, at least one magnetic pole and at least one coil, wherein, the magnetic pole is fixed, the iron core is connected with a connecting rod, the iron core is transmitted to a push rod through the connecting rod to realize the connection and changeover of contacts; the periphery of the suction type magnetic pole structure is formed into an enclosed magnetic environment by a concentrating flux plate and the magnetic conducting yoke iron. The utility model can realize bigger contact retaining force, increase the contact pressure between the contacts, and increase the conductive cross-section of the conductive mechanism in the relay to increase the conducting ability of the relay. The relay with the magnetic pole structure has strong anti-jamming ability and high working reliability.
Description
Technical field
The utility model relates to a kind of suction-type field structure that is used for relay, belongs to technical field of electronic components.
Background technology
Magnetic latching relay generally is made up of electromagnetic system, contact system and housing.Electromagnetic system is made up of coil, magnet steel, magnetic conduction heel piece, magnetic conductive board etc., and magnet steel mostly is I shape; Contact system is made up of the helical spring or the flat spring of dynamic and static contact point and assurance contact point contact pressure.Utilize the catch bar of insulation to connect contact system and electromagnetic system, realize transmission, interlock.This kind relay has coil its output state under the energizing quantity effect of regulation and changes, but after excitation is cancelled, can keep the self-retaining function of original state, is used widely in pre existing paying, remote meter reading formula electric energy meter.
Along with carrying out in an all-round way of China's urban and rural power grids construction and upgrading project, the extensive enforcement of " Every household has an ammeter " system, pre-payment, remote meter reading formula electric energy meter have obtained popularizing rapidly.Relay is according to the crucial executive component of control signal automatic open close in the prepayment meter.Because it is in running order for a long time that prepayment meter needs, conditions such as electric current, voltage had more uncertainty when ammeter opened and closed, therefore many new demands of common relay relay have been proposed to be different from, for example contact temperature should not be higher than 50 ℃, contact resistance should not be greater than 2m Ω, closing of contact pressure is single-phase greater than 300G, and three-phase is greater than 600G etc.
But existing electric energy meter is subjected to the influence of its electromagnetic system field structure with in the magnetic latching relay, and magnetic pole mostly is line or small size contact when contacting with iron core, and confining force is less.Be subjected to the constraint of confining force, the contact pressure between the contact point is little, causes contact point resistance to increase or instability, makes the relay temperature too high, causes relay to burn out.Simultaneously, the conductive section of relay inside is little, and caloric value is big, and the detection in the electric energy meter, metering module are produced potential safety hazard.
Because the existence of above-mentioned defective, the fail safe of electric energy meter and reliability decrease make existing pre-payment, remote meter reading formula electric energy meter not to be widely used.
Summary of the invention
The purpose of this utility model is to provide a kind of suction-type field structure that is used for relay.
Another one purpose of the present utility model provides a kind of magnetic latching relay that adopts this suction-type field structure.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of suction-type field structure that is used for relay is used in the electromagnetic system of magnetic latching relay, it is characterized in that:
Described suction-type field structure comprises a yoke, iron core, at least one magnetic pole and at least one coil, and described position of magnetic pole is fixed, and described iron core is connected with connecting rod, and iron core is realized the connection and the switching of contact point to catch bar by the connecting rod transmission; The periphery of described suction-type field structure is made of the magnetic environment of a sealing magnetic conductive board and magnetic conduction heel piece.
Wherein, described magnetic pole is two, is separately fixed at the two ends of described field structure, and wherein the magnetic pole hollow of an end is to pass described connecting rod.
When described magnetic pole is one, be fixed on an end of described field structure, described iron core is arranged in the field structure other end relative with described magnetic pole.
Described magnetic pole and iron core outer peripheral have the bobbin wall, are provided with the relative magnet of bipolarity at bobbin corresponding to the outside of iron core.
A kind of magnetic latching relay is characterized in that:
The electromagnetic system of described magnetic latching relay adopts above-mentioned suction-type field structure.
Described magnetic latching relay is the relay that is used for pre-payment remote meter reading formula electric energy meter, and this relay is placed on outside the described electric energy meter, the corresponding connection of splicing ear of leading-out terminal and electric energy meter inside.
Suction-type field structure provided by the utility model can realize bigger contact confining force, increase contact pressure between contact point, increase the conductive section of conductive mechanism in the relay to increase the conductive capability of relay.The relay antijamming capability of using this field structure is strong, reliable operation is high.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is the internal structure schematic diagram of first embodiment of suction-type field structure provided by the utility model;
Fig. 2 is the internal structure schematic diagram of second embodiment of suction-type field structure provided by the utility model;
Fig. 3 is the internal structure schematic diagram that adopts the magnetic latching relay of suction-type field structure shown in Figure 1;
Fig. 4 is the perspective view of contact system in the relay shown in Figure 3.
Embodiment
Fig. 1 is the internal structure schematic diagram of first embodiment of suction-type field structure provided by the utility model.As shown in Figure 1, this first embodiment is two magnetic pole suction-type structures, comprising coiling with lower magnetic pole 23, magnetic 22 on the last magnetic pole 18 on the magnetic conductive board and magnetic conduction heel piece 19 of bobbin 24, coil 16, magnetic conduction heel piece 19, upper conduction magnetic board 15, twisting, move iron 20, connecting rod 17 and be connected connecting rod and the pin of iron core 21.
In the magnetic circuit of two magnetic pole suction-type structures, comprise a closed square or circular magnetic conduction heel piece, iron core 20, two 18,23 and two coils of magnetic pole.The riveted joint of yoke two ends has contour fixed magnetic pole, and the magnetic pole hollow of an end is to pass connecting rod 17.The centre that is positioned at magnetic pole is provided with the cylinder-shaped iron core 20 of a motion, and iron core 20 is fixing with connecting rod 17 by pin 21.Magnetic pole and iron core outer peripheral have the bobbin wall, and iron core moves in the coil wall.Be provided with the relative magnet of bipolarity as magnetic pole at bobbin 24 corresponding to the outside of iron core.Be wound with coil 16 on the bobbin.Like this, under the effect of magnetic field of magnets, move iron core or be close to magnetic pole, or be close to lower magnetic pole, and keep being close to state.Form magnetic field behind the coil electricity signal, and with the magnetic field interaction of magnet, the position that changes moving iron core makes it by being close to magnetic pole to the lower magnetic pole motion or it is moved by being close to the lower magnetic pole magnetic pole that makes progress, it is constant that the post exercise iron core can the holding position after signal stops in coil, thereby realize self-retaining function.The iron core of motion gives catch bar 10 to realize the connection and the switching of contact point by connecting rod 17 transmissions.
In the first above-mentioned embodiment, owing to adopt two magnetic pole suction-type structures, be that face contacts between moving iron core 20 and the upper and lower magnetic pole 18,23, therefore contact area is big, can guarantee reliable confining force, making has reliable contact force between the relay contact point, improves the reliability of relay work.
Fig. 2 has shown the internal structure of second embodiment of above-mentioned suction-type field structure.This embodiment is single magnetic pole suction-type structure, and promptly magnetic pole has only one, is positioned at whole suction-type structure bottom, and moving iron core is connected with connecting rod, pumps, to realize the connection and the switching of contact point.It is constant that the post exercise iron core can the holding position after signal stops in coil, thereby realize self-retaining function.The two magnetic pole suction-types of above-mentioned single magnetic pole suction-type structure are simple in structure, so cost will hang down slightly.It also can produce bigger attracting state confining force, is lower than two magnetic pole suction-types but this structure breaks the confining force of hold mode.
In suction-type field structure provided by the utility model, an important techniques feature just is that its periphery is made of the magnetic environment (magnetic conductive board and magnetic conduction heel piece intersection may have seam, but do not influence effectiveness) of a sealing magnetic conductive board and magnetic conduction heel piece.This design of Electromagnetic Shielding can significantly reduce the interference of external magnetic field, improves the operational reliability of whole relay.
Need to prove, the relay that a kind of BLP brand is arranged, the structure of its electromagnetic system and second embodiment of the present utility model are similar, but this kind relay does not have capability of electromagnetic shielding completely, so antijamming capability far needn't adopt the electromagnetic relay of this suction-type field structure.
Above-mentioned suction-type field structure is mainly as the electromagnetic system in the electromagnetic relay.Fig. 3 has shown an example of the magnetic latching relay that adopts this field structure.This magnetic latching relay keeps external relay for the magnetic of inventor's separate case application, is made up of electromagnetic system, contact system, leading-out terminal, housing.Wherein electromagnetic system and contact system all are positioned at the inside of housing, and leading-out terminal is divided into two groups, are distributed in the both sides of housing.In the leading-out terminal of this relay, an end is to meet the pattern that the exit of electric energy meter requires; The other end is to meet the pattern that the splicing ear of electric energy meter inside requires.
As shown in Figure 3, leading-out terminal 1～7 and three group quiet contact point corresponding are connected of the part of ammeter internal interface line end 12～14 in housing with contact system.Wherein, as shown in Figure 4, contact system is made up of the arc extinguishing grid pieces (not shown) between three pairs of bridge-type double break crawl contact point assemblies 9, quiet contact point, catch bar 10, helical spring and/or flat spring 11 and contact points.Catch bar 10 places in the middle of the two-phase contact point, and catch bar 10 connects the moving contact bridge 9 of three-phase and connects contact system and electromagnetic system by connecting rod 17.Be placed with helical spring and/or flat spring 11 in the chamber of catch bar 10, its elastic stability also produces enough elastic force, guarantees contact point contact stabilization, reliable.
Above-mentioned quiet contact assembly is that the mode of electric terminal with riveted joint or welding is fixed on the brace, and both sides are parallel to be fixed in the groove of housing discretely.Brace is pressed the status requirement bending and forming of relay leading-out terminal, is welded on the leading-out terminal of relay; Or directly become the brace of bending all to draw shape, or the copper brush line is welded between quiet contact assembly and the relay leading-out terminal by being flexible coupling as the disjunctor terminal.
Moving contact point assembly is the electric terminal corresponding to the both sides fixed contact.Electric terminal is fixed on the sheet brace with the form of riveted joint or welding.In the three rectangle catch bar holes of moving contact assembly insertion by the electrical insulating material injection molded, and helical spring and the sheet metal spring that produces pressure between contact point established at the every moving contact assembly back side in catch bar.One end of catch bar is connected with the moving iron core connecting rod of magnetic circuit system.
Referring to shown in Figure 3, the partition wall in housing 25 forms the guide rail of catch bar 10 motions, also is provided with two tracks along catch bar 10 directions of motion in housing 25 bottoms.Article two, track has reduced the contact area of catch bar 10 and housing 25, and the frictional force when having reduced action has guaranteed the reliable in action of relay.
In addition, between above-mentioned dynamic and static contact point, can also be provided with arc extinguishing grid pieces.Utilize this arc extinguishing grid pieces, the electric arc that produces when dynamic and static contact point switches can be made arc extinction or minimizing by stretching that arc extinguishing grid pieces draws, and improves the relay switching capability.
Of particular note, suction-type field structure provided by the utility model is not limited to keep using in the external relay at above-mentioned magnetic.This suction-type field structure also can adopt in existing power magnetic force keeping relay, stepping relay, direct current electromagnetic relay, alternating current electromagnetic relay.As long as relay has the application demand that needs the contact confining force big, can adopt above-mentioned suction-type field structure.
More than the suction-type field structure that is used for relay described in the utility model is had been described in detail.For the those skilled in the art in present technique field, the various conspicuous change of under the situation of spirit that does not deviate from technical scheme described in the utility model and claim scope it being carried out is all within protection range of the present utility model.
Claims (6)
1. a suction-type field structure that is used for relay is used in the electromagnetic system of magnetic latching relay, it is characterized in that:
Described suction-type field structure comprises a yoke, iron core, at least one magnetic pole and at least one coil, and described position of magnetic pole is fixed, and described iron core is connected with connecting rod, and iron core is realized the connection and the switching of contact point to catch bar by the connecting rod transmission; The periphery of described suction-type field structure is made of the magnetic environment of sealing magnetic conductive board and magnetic conduction heel piece.
2. the suction-type field structure that is used for relay as claimed in claim 1 is characterized in that:
Described magnetic pole is two, is separately fixed at the two ends of described field structure, and wherein the magnetic pole hollow of an end is to pass described connecting rod.
3. the suction-type field structure that is used for relay as claimed in claim 1 is characterized in that:
When described magnetic pole is one, be fixed on an end of described field structure, described iron core is arranged in the field structure other end relative with described magnetic pole.
4. the suction-type field structure that is used for relay as claimed in claim 1 is characterized in that:
Described magnetic pole and iron core outer peripheral have the bobbin wall, are provided with the relative magnet of bipolarity at bobbin corresponding to the outside of iron core.
5. magnetic latching relay is characterized in that:
The electromagnetic system of described magnetic latching relay adopts the described suction-type field structure of claim 1.
6. magnetic latching relay as claimed in claim 5 is characterized in that:
Described magnetic latching relay is the relay that is used for pre-payment remote meter reading formula electric energy meter, and this relay is placed on outside the described electric energy meter, the corresponding connection of splicing ear of leading-out terminal and electric energy meter inside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200023916U CN201063319Y (en) | 2007-03-20 | 2007-03-20 | Inhalation type magnetic pole structure for relay |
| PCT/CN2008/000171 WO2008113245A1 (en) | 2007-03-20 | 2008-03-20 | A magnetic latching external relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200023916U CN201063319Y (en) | 2007-03-20 | 2007-03-20 | Inhalation type magnetic pole structure for relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063319Y true CN201063319Y (en) | 2008-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200023916U Expired - Lifetime CN201063319Y (en) | 2007-03-20 | 2007-03-20 | Inhalation type magnetic pole structure for relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063319Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025087158A1 (en) * | 2023-10-27 | 2025-05-01 | 上海诺雅克电气有限公司 | Electromagnetic operating system and switch device |
-
2007
- 2007-03-20 CN CNU2007200023916U patent/CN201063319Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025087158A1 (en) * | 2023-10-27 | 2025-05-01 | 上海诺雅克电气有限公司 | Electromagnetic operating system and switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUEQING LIHUI ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHEJIANG PRESTIGE ELECTRONIC CO., LTD. Effective date: 20120331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325608 WENZHOU, ZHEJIANG PROVINCE TO: 325609 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120331 Address after: 325609, Yueqing, Zhejiang, Yueqing Po Chi Special Industrial Park (FAI science and technology inside) Patentee after: Yueqing Lihui Electrical Appliance Co., Ltd. Address before: 325608 Tiancheng Industrial Zone, Zhejiang, Yueqing Patentee before: Zhejiang Prestige Electronic Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080521 |
|
| CX01 | Expiry of patent term |