CN203536306U - Magnetic latching relay - Google Patents
Magnetic latching relay Download PDFInfo
- Publication number
- CN203536306U CN203536306U CN201320646557.3U CN201320646557U CN203536306U CN 203536306 U CN203536306 U CN 203536306U CN 201320646557 U CN201320646557 U CN 201320646557U CN 203536306 U CN203536306 U CN 203536306U
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- CN
- China
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- magnetic latching
- contact spring
- latching relay
- pedestal
- relay
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Abstract
The utility model relates to the field of automatic control electric appliance elements, and especially relates to a relay. The magnetic latching relay comprises a direct-acting magnetic latching drive device disposed on a housing, a pedestal fixedly connected with the housing, a bridge type double-break contact structure disposed in the pedestal, and an iron core in the direct-acting magnetic latching drive device and moving contacts in the bridge type double-break contact structure are lined through a pushing card. The magnetic latching relay is further provided with yokes which form a box body that covers the direct-acting magnetic latching drive device. According to the magnetic latching relay, the magnetic latching relay's capability of resisting to an external magnetic field is improved, the stability of electrical parameters is guaranteed, no further debugging is needed after installation, the reliability and installation efficiency of the magnetic latching relay are improved, and thus the magnetic latching relay is particularly applicable to intelligent ammeters, capacitor switching apparatuses for reactive compensation, household electrical appliances and automatic control apparatuses which all require resistance to external magnetic fields.
Description
Technical field
The utility model relates to automatic control electric device element field, relates in particular to a kind of relay.
Background technology
Magnetic latching relay is a kind of electromagnetic relay that obtained in recent years very fast development, and it is to be mainly applied in automatic control system for the disconnected a kind of switch element of automatic control electric circulation.Its control end is a pair of coil leading foot being connected with magnetic induction coil, when this relay is inputted the signal of telecommunication of opposed polarity from coil leading foot, can by the action of contact, automatically access or disconnect control circuit; Its maximum feature is after removing the signal of telecommunication, contact in its circuit still can remain on the state after action, control end, without being continuously applied the signal of telecommunication, to reach its energy-conservation effect, is particularly suitable for still needing the long period to remain in the device of switching state after connecting circuit.
In the common whole housing of existing magnetic latching relay, be all and plastics or resin are made, its inner magnetic circuit system is not Omnidirectional enclosed, static contact spring piece be directly fixed in housing or embed in pedestal after with glue, fix.When this class relay is used for having the environment of strong external magnetic field, be easy to be subject to outer magnetic disturbance and cause that action is malfunctioning, such as when being contained in intelligent ammeter in time, user needs only and externally places a permanent magnet, just may cause ammeter reading inaccurate, cannot accurate-metering; Ammeter cut-in relay, conventionally the exit of the static contact spring piece of relay can be subject to additional power when mounted, and in existing structure, the corresponding exit of static contact spring piece when connecting and fixing, may become flexible after stressed, causes the unstable of relay electrical quantity.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of magnetic latching relay, this relay keeps drive unit to be partly provided with a radome that can shield external magnetic field at magnetic, improve the ability of the anti-external magnetic field of magnetic latching relay, be specially adapted to have the intelligent electric meter of anti-external magnetic field requirement, in capacitor switching device, household electrical appliance and the self-con-tained unit of reactive power compensation.
The utility model is achieved in that a kind of magnetic latching relay, comprises,
The direct-acting magnet being arranged on housing keeps drive unit;
The pedestal being fixedly linked with housing;
Be arranged on the bridge-type double-fracture contact structure in pedestal;
Iron core in described direct-acting magnet maintenance drive unit and the moving contact in bridge-type double-fracture contact structure link by push card;
This relay is also provided with yoke, and described yoke forms a box body and is coated on outside direct-acting magnet maintenance drive unit.
Total some of described yoke, some yokes are combined into a box body.
Described direct-acting magnet keeps drive unit to comprise solenoid, bobbin, permanent magnet and iron core, described solenoid is arranged on bobbin, the place, axle center that described iron core is arranged on bobbin forms moving sets with bobbin, described permanent magnet is arranged on the middle part that is positioned at solenoid on bobbin, and one end of described iron core is fixedly linked by bearing pin and push card.
Described solenoid is in series by two sections of identical coils.Described bridge-type double-fracture contact structure comprises movable contact spring, moving contact, contact spring, static contact spring piece and fixed contact, described push card is arranged in pedestal, described movable contact spring is connected in push card, the total a pair of symmetry of described moving contact is fixedly installed on the two ends of movable contact spring, described static contact spring piece is total a pair of, stretch out as circuit exit static contact spring piece one end, the static contact spring piece other end is connected in pedestal and is fixedly linked with fixed contact, and described contact spring is arranged between the middle part of movable contact spring and base internal wall and gives push card reseting torque.
In described push card, be also provided with reaction spring, the thrust of described reaction spring and the corresponding cooperation of the thrust of contact spring.
Between described static contact spring piece and pedestal, also by screw fastening, be connected.
The side of described movable contact spring offers location notch, and described location notch is buckled in push card, limits moving radially of movable contact spring.
The utility model magnetic latching relay has adopted direct-acting magnet to keep the contact system of drive unit and bridge-type double-fracture contact structure, and keeps drive unit to be partly provided with a radome that can shield external magnetic field at magnetic; Improve the ability of the anti-external magnetic field of magnetic latching relay, guaranteed the stable of electrical quantity; The contact structure of double-fracture has good dielectric withstanding voltage and switched voltage; The action of contact has adopted spring structure, has increased the useful life of this relay; Static contact spring piece has additionally increased fixed part, and this device fixed contact when the various electric device of access can be offset, and after installation, without debugging, has promoted reliability and the installation effectiveness of this device again; Generally speaking, the utility model is simple in structure, efficiency of assembling is high, exempt from debugging, electrical quantity high conformity, can resist strong external magnetic field, be specially adapted to there is the intelligent electric meter of anti-external magnetic field requirement, in capacitor switching device, household electrical appliance and the self-con-tained unit of reactive power compensation.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model magnetic latching relay;
Fig. 2 is part exploded perspective view of the present utility model;
Fig. 3 is main TV structure schematic diagram of the present utility model;
Fig. 4 is that master of the present utility model looks perspective diagram.
In figure: 1 yoke, 2 screws, 3 solenoids, 4 bobbins, 5 permanent magnets, 6 push card, 7 iron cores, 8 reaction springs, 9 movable contact springs, 10 moving contacts, 11 contact springs, 12 pedestals, 13 static contact spring pieces, 14 fixed contacts, 15 bearing pins, 16 housings, 17 location notchs.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model statement, these equivalent form of values fall within the application's appended claims limited range equally.
A magnetic latching relay, comprises that the direct-acting magnet being arranged on housing 16 keeps drive unit as shown in Figure 1,2,3, 4; In the present embodiment, described direct-acting magnet keeps drive unit to comprise solenoid 3, bobbin 4, permanent magnet 5 and iron core 7, described solenoid 3 is arranged on bobbin 4, the place, axle center that described iron core 7 is arranged on bobbin 4 forms moving sets with bobbin 4, described permanent magnet 5 is arranged on the middle part that is positioned at solenoid 3 on bobbin 4, generally this place is used Ru-Fe-Mn as permanent magnet 5, but also do not get rid of, does not use other permanent magnets; One end of described iron core 7 is fixedly linked by bearing pin 15 and push card 6.For the ease of assembling and location, described solenoid 3 is in series by two sections of identical coils, solenoid 3 according to the sense of current, produce corresponding magnetic field after electric, and then promote iron core 7 and move vertically; This relay is also provided with yoke 1, described yoke 1 forms a box body and is coated on outside direct-acting magnet maintenance drive unit, to avoid the interference of external magnetic field, improve the reliability of the actuating of relay, the box body being comprised of yoke 1 in the present embodiment can be the integral body of integral structure, also can be arranged to the box body being combined into by some yokes 1 for easy accessibility; When being used for intelligent electric meter, this relay can prevent that user from using permanent magnet power stealing; Yoke 1 in the present embodiment has 5 rectangle box bodys that are combined into a side opening, and direct-acting magnet keeps drive unit to be placed in rectangle box body.
With the pedestal 12 that housing 16 is fixedly linked, pedestal 12 is all to be made by insulating material with housing 16, is provided with bridge-type double-fracture contact structure in pedestal 12, at the bridge-type double-fracture contact structure described in this enforcement, comprise reaction spring 8, movable contact spring 9, moving contact 10, contact spring 11, static contact spring piece 13 and fixed contact 14, described push card 6 is arranged in pedestal 12, described movable contact spring 9 is connected in push card 6, the total a pair of symmetry of described moving contact 10 is fixedly installed on the two ends of movable contact spring 9, described static contact spring piece 13 is total a pair of, stretch out as circuit exit static contact spring piece 13 one end, static contact spring piece 13 other ends are connected in pedestal 12 and are fixedly linked with fixed contact 14, described reaction spring 8 is arranged on and in push card 6, gives the moment that matches with contact spring 11, during iron core 7 action, with push card 6 interlocks, and then moving contact 10 is moved and fixed contact 14 closures/disconnection, for disconnecting with fixed contact 14 of can guaranteeing that moving contact 10 can be stable, between the middle part of described movable contact spring 9 and pedestal 12 inwalls, be provided with contact spring 11, the corresponding cooperation of thrust of the thrust of described reaction spring 8 and contact spring 11, by assisting the action of moving contact 10 with joint efforts.
In addition in order to avoid in installation process static contact spring piece 13 because of the stressed distortion causing, make the displacement of fixed contact 14, have influence on the reliability of relay, between described static contact spring piece 13 and pedestal 12, also by screw 2 is fastening, be connected, in this sample device, the position of static contact spring piece 13 will be more firm, the position of fixed contact 14 also can be more stable, after installation, without debugging, greatly accelerated installation effectiveness again.
Action at some occasion movable contact spring 9 may be very frequent, continuous action may cause movable contact spring 9 to produce horizontal displacement, cause between moving contact 10 and fixed contact 14 and cannot normally contact, the side of described movable contact spring 9 offers location notch 17, described location notch 17 is buckled in push card 6, limits moving radially of movable contact spring 9.
Claims (8)
1. a magnetic latching relay, comprises,
The direct-acting magnet being arranged on housing (16) keeps drive unit;
The pedestal (12) being fixedly linked with housing (16);
Be arranged on the bridge-type double-fracture contact structure in pedestal (12);
Described direct-acting magnet keeps the iron core (7) in drive unit to link by push card (6) with the moving contact (10) in bridge-type double-fracture contact structure;
It is characterized in that: this relay is also provided with yoke (1), described yoke (1) forms a box body and is coated on outside direct-acting magnet maintenance drive unit.
2. magnetic latching relay as claimed in claim 1, is characterized in that: total some of described yoke (1), some yokes (1) are combined into a box body.
3. magnetic latching relay as claimed in claim 1, it is characterized in that: described direct-acting magnet keeps drive unit to comprise solenoid (3), bobbin (4), permanent magnet (5) and iron core (7), described solenoid (3) is arranged on bobbin (4), the place, axle center that described iron core (7) is arranged on bobbin (4) forms moving sets with bobbin (4), described permanent magnet (5) is arranged on the middle part that is positioned at solenoid (3) on bobbin (4), and one end of described iron core (7) is fixedly linked by bearing pin (15) and push card (6).
4. magnetic latching relay as claimed in claim 3, is characterized in that: described solenoid (3) is in series by two sections of identical coils.
5. the magnetic latching relay as described in any claim in claim 1 ~ 3, it is characterized in that: described bridge-type double-fracture contact structure comprises movable contact spring (9), moving contact (10), contact spring (11), static contact spring piece (13) and fixed contact (14), described push card (6) is arranged in pedestal (12), described movable contact spring (9) is connected in push card (6), the total a pair of symmetry of described moving contact (10) is fixedly installed on the two ends of movable contact spring (9), described static contact spring piece (13) is total a pair of, stretch out as circuit exit static contact spring piece (13) one end, static contact spring piece (13) other end is connected in pedestal (12) and is fixedly linked with fixed contact (14), described contact spring (11) is arranged between the middle part of movable contact spring (9) and pedestal (12) inwall and gives push card (6) reseting torque.
6. magnetic latching relay as claimed in claim 5, is characterized in that: in described push card (6), be also provided with reaction spring (8), the corresponding cooperation of thrust of the thrust of described reaction spring (8) and contact spring (11).
7. magnetic latching relay as claimed in claim 5, is characterized in that: between described static contact spring piece (13) and pedestal (12) also by fastening being connected of screw (2).
8. magnetic latching relay as claimed in claim 5, it is characterized in that: the side of described movable contact spring (9) offers location notch (17), it is upper that described location notch (17) is buckled in push card (6), limits moving radially of movable contact spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646557.3U CN203536306U (en) | 2013-10-21 | 2013-10-21 | Magnetic latching relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646557.3U CN203536306U (en) | 2013-10-21 | 2013-10-21 | Magnetic latching relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536306U true CN203536306U (en) | 2014-04-09 |
Family
ID=50422487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320646557.3U Expired - Fee Related CN203536306U (en) | 2013-10-21 | 2013-10-21 | Magnetic latching relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536306U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393766A (en) * | 2017-07-26 | 2017-11-24 | 上海西艾爱电子有限公司 | A kind of bridging contact electromagnetic relay |
| CN108231490A (en) * | 2018-01-08 | 2018-06-29 | 行驱电气（上海）有限公司 | A kind of reversing switch formula magnetic latching relay |
| CN108321036A (en) * | 2018-03-30 | 2018-07-24 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay that can resist thunder-strike current |
| WO2022117077A1 (en) * | 2020-12-03 | 2022-06-09 | 华为技术有限公司 | Relay |
-
2013
- 2013-10-21 CN CN201320646557.3U patent/CN203536306U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393766A (en) * | 2017-07-26 | 2017-11-24 | 上海西艾爱电子有限公司 | A kind of bridging contact electromagnetic relay |
| CN108231490A (en) * | 2018-01-08 | 2018-06-29 | 行驱电气（上海）有限公司 | A kind of reversing switch formula magnetic latching relay |
| CN108231490B (en) * | 2018-01-08 | 2024-04-19 | 行驱电气（上海）有限公司 | Reversing switch type magnetic latching relay |
| CN108321036A (en) * | 2018-03-30 | 2018-07-24 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay that can resist thunder-strike current |
| CN108321036B (en) * | 2018-03-30 | 2023-05-23 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of resisting lightning stroke current |
| WO2022117077A1 (en) * | 2020-12-03 | 2022-06-09 | 华为技术有限公司 | Relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20211021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |