CN102867684A - Magnetic insensitive latch actuated relay for electricity meter - Google Patents
Magnetic insensitive latch actuated relay for electricity meter Download PDFInfo
- Publication number
- CN102867684A CN102867684A CN 201110214152 CN201110214152A CN102867684A CN 102867684 A CN102867684 A CN 102867684A CN 201110214152 CN201110214152 CN 201110214152 CN 201110214152 A CN201110214152 A CN 201110214152A CN 102867684 A CN102867684 A CN 102867684A
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- Prior art keywords
- relay
- latch
- circuit
- contact reed
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
- H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
- H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
- H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
- H01H51/084—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with axial ratchet elements
Abstract
The present invention relates to a relay (1) and to an electricity meter with a relay. The relay comprises a latch actuator (2), possible a linear solenoid-based actuator, and a mechanical latch (3) operable to cyclic switch between a first latch position and a second latch position. A relay actuator (4) is coupled to the latch to follow a movement of the latch, and to a contact spring (6) which closes or interrupts an electric circuit between a first and a second relay terminal (7, 8). The contact spring is part of a conductor path (15-18), where the conductor path comprises at least one bend (17) so that the conductor path comprises a first section (15) and a second section (16) facing each other.
Description
Technical field
The present invention is relevant with the ammeter that relay is housed with relay.
Background technology
Relay is an electric operating switch, usually comes the mechanically actuated operation switching mechanism with electromagnet, and uses various switching mechanism.So-calledly latch wherein a kind of form that relay is relay, it has two kinds of relaxed states, and this two states latchs relay and keeps Last status by electric power starting during powered-down.
Known relay (for example disclosing among GB 2 383 469 A1) comprises a contact reed, and this contact reed is closed or interrupted circuit between first and second relay contact.This relay comprises a switching mechanism, and this switching mechanism adopts the permanent magnet of H type armature form.Centered by permanent magnet, permanent magnet is placed on two york pieces of magnetizing coil.When the magnetic pole of magnetizing coil is put upside down, just centered by permanent magnet, cause contact reed so that the starting device that circuit is partial to and is closed or interrupt thereby replaced.
Being widely used of relay.In a certain special applications, relay is used as circuit breaker and inserts in the ammeter, is used for control to user's supply of electric power.
Relay is subject to the magnetic force impact.In the ideal case, relay is only shifted one's position when switching mechanism moves.But electromagnetic relay might be subject to the impact of external magnetic field, and operation will be interfered.In addition, the electromagnetic force of moving at relay circuit might cause circuit in the situation that opening circuit appears in high electric current, for example disturbs relevant situation with the electric current short-time pulse waveform of power supply network.
Summary of the invention
So that relay is suitable for inserting ammeter and compare with at present known relay that susceptibility for the magnetic force impact is low to have superiority greatly.In addition, target of the present invention is to realize being fit to insert except known relays the alternative relay of ammeter.
According to a first aspect of the invention, the relay that proposes comprises:
-latch starting device;
-be used in the mechanical lock storage that carries out periodic switch between first latch position and second the latch position;
-link to each other to follow the relay actuator that latch moves with latch;
-close or interrupt the electric shock reed of the circuit between first and second the relay wiring end, one end of contact reed is connected with first relay wiring end conductivity, second free end of contact reed closed the circuit in first contact reed position, and interrupts second circuit in the contact reed position;
Wherein, contact reed is the part of conductor path, and conductor path comprises an end and the bending of the place between the free end that contact reed links to each other with first relay wiring end at least, and conductor path comprises first paragraph and the second segment that faces one another thus; Wherein, contact reed consists of first paragraph at least; Wherein, relay actuator links to each other with contact reed, and circuit is closed in first latch position and interrupted second latch position thus.
The advantage of relay of the present invention be latch devices be machinery and separate with the latch starting device, any magnetic susceptibility parts can be carried out by the latch starting device, with compare based on the relay of H type permanent magnetism anchor log, the latch starting device can more effectively be avoided magnetic interference, and H type permanent magnetism anchor log consists of the part of latch devices and starting device.In addition, from the structure of contact reed (one of contact reed section part that forms conductor path at least, conductor path is included in two, and at least one place between the section is crooked relatively), Lorentz (Lorentz) power causes these two relative sections to be got rid of mutually, help thus during current transients or the interference of electric current short-time pulse waveform, to keep electric contact, and during the electric current short-time pulse waveform disturbs, hinder thus and open circuit, because electromagnetic force occurring in the district that opens circuit.The combination of switching mechanism and contact reed structure so that relay as a device, more insensitive for the magnetic influence from known source.
In aspect second of the present invention, relay is arranged for measuring the electricity consumption situation of electric power that AC power cord is supplied as the circuit-breaker in the ammeter, and it comprises:
-for the measuring circuit of measuring the electricity consumption situation;
-according to the relay of first aspect of the present invention, wherein the relay wiring end is arranged between power line and the load, and when cut-off, load is connected with the electric property of power line like this, and when relay interrupts, the disconnection of the electric property of load and power line; And
The control circuit of-control latch starting device.
This relay especially is fit to ammeter, because ammeter is not vulnerable to magnetic field or the magnetic effect impact is very important.Be not mechanical lock storage based on permanent magnet by application, compare with known ammeter, the circuit breaker of this ammeter is not vulnerable to magnetic disturbance.In addition, the circuit breaker of this ammeter can be resisted short-time pulse waveform and disturb, and short-time pulse waveform is everlasting when disturbing and is occured on the public electric wire net.
In general, two aspects of the present invention can be integrated and combination in any possible mode within the scope of the invention.These aspects and other aspects of the present invention, characteristics and/or advantage will obviously be found out from embodiment hereinafter described, and be explained in the described embodiment hereinafter.
Description of drawings
Embodiment of the present invention the general only describe in the mode of example, and with reference to the accompanying drawings, wherein:
Figure 1A and 1B show the schematic diagram of relay embodiment;
Fig. 2 demonstration comprises the schematic diagram according to the ammeter element of the relay of embodiment of the present invention; And
The schematic diagram of Fig. 3 display control circuit embodiment.
Embodiment
The schematic diagram of the embodiment of foundation relay 1 of the present invention is shown in Figure 1A and the 1B.Relay describes with first position (being also referred to as off-position) among Figure 1A, describes with second position (being also referred to as interruption position) among Figure 1B.
Relay comprises latch starting device 2, latch 3 and the relay actuator 4 that links to each other with contact reed 6 mechanicalnesses.Contact reed is installed between first relay wiring end 7 and second the relay wiring end 8, can be mobile between second position (Figure 1B) of interrupting between two relay wiring ends 7,8 in first position (Figure 1A) of closing between two relay wiring ends 7,8 and circuit at circuit.In illustrated embodiment, the first end 9 of contact reed links to each other with conductor 18, and the interconnection of one of conductor and contact reed and relay wiring end; Second free end 5 of contact reed is with a contact rivet.Second contact rivet invests on the relative conductor 19 that connects second relay wiring end.By the free end of current collector reed, the circuit between the relay wiring end can be closed or interrupt.
Starting or switching mechanism according to embodiment of the present invention comprise three overall formations: latch starting device 2, latch 3 and relay actuator 4.
The advantage of latch starting device 2 is the linear electromagnetic starting devices that can be built into based on electromagnet, and it applies straight line force 10 when energising.This line start device has been known to the industry.Electromagnetic linear starting device based on electromagnet comprises many windings 11, and these windings are at least part of to encase a certain magnetizable plunger element 12, and such as the iron plunger, in order that when electric current moves in winding, magnetic force inwardly pushes plunger.Use is based on the advantage of the electromagnetic linear starting device of electromagnet, even starting device is based on magnetizable plunger and solenoid, starting device is also insensitive to the external magnetic field, because it will need extreme external magnetic field so that plunger is moved into coil, and coil is that the opened lock storage is necessary.In addition, the latch starting device is not most important with respect to the position of contact reed.In ammeter, the latch starting device can be placed on the position that the external magnetic field can't be touched easily.
The mechanical lock storage of straight line starting widely known to, the mechanical lock storage of the straight line of ball pen starting for example, it can arrive in two positions any one; extrapolation is to write; in push away to protect, when pressing the button, then between these two positions, constantly switch.Latch structure is a quite simple mechanical realization, adopts reed and coactive pattern element.These structures can make up in many ways, these modes are known to the technical ability skilled person in mechanical realization field, under this structure, two can be carried out the periodically linear elements that replace and are arranged between two reeds, in order that these two elements that cause by turns between two elements switch between two linear arrangements that replace.Relay actuator 4 links to each other to follow the movement of latch with latch, concrete operating among Fig. 2 explained.Latch is according to the operate of ball pen, and after giving 2 energisings of latch starting device, plunger 12 promotes latch and shifts one's position, and the holding position is constant before again opening.
In illustrated embodiment, in first latch position, relay actuator does not promote or only slightly promotes the free end (Figure 1A) of contact reed, and second latch position, relay actuator promotes the free end of contact reed to interrupt two circuit (Figure 1B) between the relay wiring end.
In illustrated embodiment, relay comprises the biasing spring 14 that is appended hereto the relay bungalow (not shown), is used for contact reed is moved partially to first contact reed position.Generally speaking, this partially moving can finishing by the reed parts of contact reed self.But in order to mate better the contact force in off-position, may tend to use special reed 14.On the one hand, the contact force that applies should guarantee that contact force is enough to obtain low-resistance contact resistance between two rivets, but then, the contact force that applies should not require the starting device of high scale, because the power that relay actuator applies at contact reed need to be greater than the biasing force of biasing spring.Contact force in the 1-6 Newton range is normally suitable.In illustrated embodiment, biasing spring is the helical form reed, but may adopt the reed of other types, for example invests the lobate reed of relay bungalow (not shown) or contact reed bottom.
Occur at the same time in the situation of current transients and electric current short-time pulse waveform interference, the contact rivet is ostracised, current transients passes through simultaneously, this is so that the contact might be because repulsive force and temporarily being interrupted, if in the situation that high electric current loses the contact, then can between two contact rivets, cause a large amount of sparks (arc), thereby so that the heating of contact rivet, this rivet that might cause getting an electric shock is welded together, thereby might be so that again can not interrupt circuit.
If guarantee to be high enough to eliminate or the Limited Current short-time pulse waveform causes the risk of spark during disturbing from contact reed itself or from the biasing force of biasing spring, an expensive starting device just need to be arranged, offset necessary biasing force because it need to apply enough large power to contact reed.
Between a relay wiring end and a contact rivet, make up conductor path so that contact reed is integrated into conductor path, in order that the position that contact reed is a certain at least section is after knee 17, thereby two section 15,16 of guaranteeing conductor path is relative each other, and inventor of the present invention puts into effect it.In this structure, electric current will move along two relative section 15,16 antiparallels, and according to Lorentz force, these two sections with mutually exclusive.Especially when occurring electric current because of current transients and rise suddenly, these two sections with mutually exclusive, and promote thus the contact rivet and concentrate, thereby offset the repulsive force between the rivet of contact, and guarantee at least to a certain extent, the contact rivet remains among the contact when current transients.
In illustrated structure, contact reed comprises two oppositely sections 15 and 16, and invest on the fixing connector 18 of a both-end, connecting terminal reed and second relay wiring end 7, the purpose that both-end rigid connector 18 here is installed is, realize electric current in the oppositely antiparallel operation in the section 16 of rigid connector and contact reed, the repulsion that therefore both can strengthen from Lorentz force operates, and can guarantee that again contact rivet on the contact reed is pushed to the contact rivet on the opposed conductor 19.In alternative, Reference numeral 16 these sections may be the parts of the attached rigid connector thereon of contact reed, and the position is before or after crooked 17.In illustrated scheme, the electric current in 15 sections and second connector 19 of contact reed is the antiparallel operation.For reducing the repulsive force that produces between these conductor segment, make up like this conductor and be intended to make conductor segment 19 to break away from contact reed section 15.Second conductor 19 here generally also can be used as the fixing conductor of both-end.Generally, the size marking of contact reed adopts is half-way house between required size and the required mechanical performance.Such as, the contact reed thickness of employing (being hardness), reverse section 15 and 16 length and crooked 17 designs can make according to given rated power the contact rivet keep in touch.Such as, can design be optimized according to the rated power of appointment in the international standard (such as UC3 relay rated power standard or other rated power standards).The standard code of UC3 rated power needs to keep in touch in the three subpulse processes of 3 kiloamperes in 10 milliseconds.
Figure 1A and 1B demonstration, the contact reed in the schematic diagram shows that contact reed is that the bending of lamination flaggy forms by two profiles.Generally speaking, the part of contact reed or contact reed may be a sheet metal, or by pressing sheet two or polylith sheet metal to form.Use the lamination type contact reed aspect the obtainable spring attribute greater flexibility being arranged than the sheet metal of similar thickness, such as, because the selection of crooked 17 each laminate curvature is suitable.
In another scheme, the part of contact reed or contact reed may be divided into two, and the circuit between first and second the relay wiring end can both be closed or interrupt to two parallel contact reed thus.One end of each contacts in parallel reed is connected with first relay wiring end conductivity, and the circuit of contact reed first and second position end is closed respectively or interrupted to second free end.In one embodiment, the free end of each contact reed respectively has a contact rivet, is used for connecting one and shares or two counter-contact rivets.Relay actuator is connected to two contact reed starts the contacts in parallel reed simultaneously, thus at first latch position shut-off circuit, at second latch position interrupt circuit, and two contact reed are partial to the position of first contact reed with a shared biasing spring.Utilize a biasing spring that is installed in middle shaft position can realize this purpose.Application is divided into two contact reed can absorb tolerance, and helps lower ohmic contacts resistance between the holding contact rivet.
Figure 1A and 1B show, connect direct current (DC) or single-phase alternating current (AC) with a relay circuit.But, two or more breaker circuits can be used to cut off the many phase alternating current circuit, and the three-phase electrical relay example that provides is connected with Fig. 2.In heterogeneous relay, relay is comprised of two or more sets relay wiring ends, each consists of a circuit that comprises contact reed, the relay actuator here is connected to each contact reed, close each circuit in first latch position thus, at second latch position interrupt circuit.
Fig. 2 shows the ammeter 25 key element schematic diagrames of the power consumption supply be used for weighing ac power cord, according to embodiment of the present invention three relays is arranged.This figure shows that housing 20 part, electromagnetism starting device 2, a mechanical lock storage 3 that an ammeter is installed are for mobile relay actuator 4, and breaker circuit 22 is comprised of contact reed 6 and terminals 23.Power line can connect a relay wiring end 8, is written at another relay wiring end 7.Ammeter is comprised of a measuring circuit (not shown), is used for measuring the power consumption load, i.e. consumer's power consumption.In addition, ammeter also comprises a controller (not shown), is used for controlling the latch starting device, therefore by control latch starting device, relies on the position of contact reed to be controlled from power line to the supply of electric power of loading.Controller can be used as the part of ammeter bus circuit.In illustrated scheme, relay actuator adopts the movable framework form, and with the synchronization interactive of realization with three contact reed 6, therefore, whole three-phase circuits of three-phase kilowatt-hour meter are interrupted together or cut out.Utilize spring coupling 24 can make the buttoned-up position of framework 4 deflections.
In illustrated scheme, framework 4 is connected to electromagnetism starting device 2 latch 3 at the latch back side relevant with this piece electromagnet.Rely on this mode, in this piece electromagnet energising, and plunger moves into after the inside, and the Frame Buttons on the latch just switches to periodic switch between first latch position and second the latch position to button.
In one embodiment, the power consumption of measurement is based on the measurement to the voltage drop of by-passed resistor 21 interior known resistances.Advantage is that the by-passed resistor of installation is the part of circuit between two relay wiring ends.Also can use other Measurement principles.
In a kind of comparatively favourable embodiment, the latch starting device is the alternating-current power supply line traffic control supply by control circuit, in the time that relay should be changed, the alternating current suppling signal is converted to a suitable driving signal, for the latch starting device thus.
Fig. 3 display control circuit utilizes the schematic diagram of the embodiment of alternating-current power supply supply latch starting device.The category that belongs to the every associative skills of skilled person according to the concrete operations that disclose function.
Control circuit 33 receives single-phase or polyphase ac voltage (VAC), on one side be imported into a commutating pole 30 in the input port.In one embodiment, commutating pole can be that a diode is arranged, is used for selecting the anodal part of signal.Commutating pole converts the input AC signal of telecommunication to rectified signal, i.e. commutating voltage (VRECT).Such rectified signal is imported into a selector circuit 31, is used for selecting one section rectified signal voltage (VSEL).This selection section offers latch starting device 2 as driving signal.Receive to drive after the signal, the latch starting device is pulled the latch switch, thus the relay transfer position
Fig. 3 further shows the voltage example in each stage.These examples only show with illustrated form.Various signals will be decided according to specific operation.What the example that provides was used is the single-phase of polyphase signa, also can use two-phase or multiphase.
Use control circuit to generate the driving signal in ac power cord comparatively favourable, reason is to drive the restriction that signal is not subject to the ammeter dc power supply, in addition, as long as connecting power line just can be guaranteed relay power, need not consider the dc power supply of ammeter.
Although the present invention is explained by relevant specific embodiments, it should not be understood to be confined to by any way the example that provides at present.The present invention can operate in any appropriate manner; Scope of the present invention makes an explanation according to appended claim.Any mark in the claim should not be understood to limit above-mentioned scope.
Claims (12)
1. relay comprises:
-one latch starting device (2);
-be used in the mechanical lock storage (3) that carries out periodic switch between first latch position and second the latch position;
-link to each other to follow the relay actuator (4) that latch moves with latch;
-close or interrupt the contact reed (6) of the circuit between first and second the relay wiring end (7,8), one end of contact reed is connected with first relay wiring end conductivity, second free end of contact reed closed the circuit in first contact reed position, and interrupts second circuit in the contact reed position;
Wherein, contact reed is the part of conductor path (15-18), conductor path comprises an end and the place between the free end crooked (17) that contact reed links to each other with first relay wiring end (7) at least, and conductor path comprises first paragraph (15) and the second segment (16) that faces one another thus; Wherein, contact reed consists of first paragraph at least; And wherein, relay actuator (4) links to each other with contact reed (6), and circuit is closed in first latch position and interrupted second latch position thus.
2. relay according to claim 1, relay also comprises a biasing spring (14), is used for contact reed is moved partially to first contact reed position.
3. according to the described relay of any aforementioned claim, wherein, the relay actuator of second latch position is pushed contact reed to second contact reed position.
4. according to the described relay of any aforementioned claim, wherein, latch starting device (2) be one based on the electromagnetic linear starting device of electromagnet, when the latch starting device is switched on, this device applies straight line force, causes that latch switches between first latch position and second latch position.
5. according to the described relay of any aforementioned claim, wherein, mechanical lock storage (3) is nonmagnetic.
6. according to the described relay of any aforementioned claim, wherein, mechanical lock storage (3) is substituted between first latch position and second latch position with at least two mutual periodicity linearities of element and switches.
7. according to the described relay of any aforementioned claim, comprise two contacts in parallel reeds, these two reeds are used for cutting out or interrupt circuit between first relay wiring end and second the relay wiring end, each contact reed has an end to be connected with first relay wiring end, the circuit of contact reed first end and the second end position is closed or interrupted laying respectively to second free end, wherein, relay actuator is able to be connected with two contact reed, thus at first latch position shut-off circuit, at second latch position interrupt circuit.
8. according to the described relay of any aforementioned claim, wherein, relay is made of two or more sets relay wiring ends, each relay wiring end consists of a circuit that comprises contact reed, wherein, relay actuator is able to be connected with each contact reed, closes each circuit in first latch position thus, interrupts each circuit second latch position.
9. be mounted for measuring the ammeter (25) of the power consumption that is derived from ac power cord, the ammeter part comprises:
-arrange for the measuring circuit of measuring the electricity consumption situation;
-according to the described relay of any aforementioned claim, wherein, the relay wiring end is arranged between power line and the load, and when cut-off, load is connected with the electric property of power line like this, and when relay interrupts, the disconnection of the electric property of load and power line; And
The control circuit of-control latch starting device.
10. ammeter according to claim 9, wherein, ammeter based on measure by-passed resistor (21) on every side the voltage drop of known resistance determine the power consumption situation, wherein, by-passed resistor is arranged to the part of circuit between two relay wiring ends.
11. according to claim 9 or 10 described ammeters, wherein, the latch starting device can be by the alternating-current power supply line traffic control supply of control circuit.
12. ammeter according to claim 11, wherein, control circuit is made of a commutating pole, be used for selecting single-phase or the anodal part of many phase alternating current power line to form rectified signal, and selector circuit is used for selecting one section rectified signal, should select section to offer the latch starting device as driving signal here.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11173015.6 | 2011-07-07 | ||
| EP11173015 | 2011-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102867684A true CN102867684A (en) | 2013-01-09 |
Family
ID=44999988
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110214152 Pending CN102867684A (en) | 2011-07-07 | 2011-07-22 | Magnetic insensitive latch actuated relay for electricity meter |
| CN201280039020.9A Expired - Fee Related CN103828003B (en) | 2011-07-07 | 2012-07-06 | Magnetic insensitive lock bolt activating relay for ammeter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280039020.9A Expired - Fee Related CN103828003B (en) | 2011-07-07 | 2012-07-06 | Magnetic insensitive lock bolt activating relay for ammeter |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2729949A4 (en) |
| CN (2) | CN102867684A (en) |
| WO (1) | WO2013004251A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008922A (en) * | 2013-10-14 | 2014-08-27 | 安徽千恩智能科技股份有限公司 | Magnetic latching relay |
| CN104008923A (en) * | 2013-10-14 | 2014-08-27 | 安徽千恩智能科技股份有限公司 | Magnetic latching relay |
| CN106471552A (en) * | 2014-07-04 | 2017-03-01 | 卡姆鲁普股份有限公司 | Data transmission system |
| CN107240531A (en) * | 2016-03-29 | 2017-10-10 | 西门子公司 | A kind of contact structures and switching device |
| CN107240514A (en) * | 2016-03-29 | 2017-10-10 | 西门子公司 | A kind of contact component and switching device |
| FR3064814A1 (en) * | 2017-03-29 | 2018-10-05 | Johnson Electric International AG | CONTACT AND RELAY SYSTEM COMPRISING SUCH A SYSTEM |
| CN111863542A (en) * | 2020-06-23 | 2020-10-30 | 宁波北仑聚缘贸易有限公司 | Mechanical self-holding electromagnetic relay |
| CN113447691A (en) * | 2021-07-30 | 2021-09-28 | 广东佳瑞达科技有限公司 | Fireproof high-safety electric meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645655B (en) * | 2013-12-24 | 2016-03-09 | 上海贝岭股份有限公司 | A kind of control method of relay for one-phase smart electric meter |
| US9281147B2 (en) | 2013-12-30 | 2016-03-08 | Elbex Video Ltd. | Mechanical latching relays and method for operating the relays |
| KR101951428B1 (en) * | 2015-07-15 | 2019-02-22 | 엘에스산전 주식회사 | Latch Relay |
| DK3321947T3 (en) * | 2016-11-15 | 2020-02-03 | Kamstrup As | MANIPULATELY SUPPORTABLE HIGH TENSION RELAY |
| CN111863534B (en) * | 2020-08-03 | 2022-05-20 | 中汇瑞德电子（芜湖）有限公司 | Electromagnetic relay |
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| US4388535A (en) * | 1981-05-18 | 1983-06-14 | Automatic Switch Company | Electric power interrupting switch |
| DE3600856A1 (en) * | 1986-01-14 | 1987-07-16 | Siemens Ag | Safety switching relay |
| DE3721286A1 (en) * | 1987-06-27 | 1989-01-05 | Zettler Elektrotechn Alois | Contact spring for relays |
| GB2265015B (en) * | 1992-03-14 | 1995-08-23 | Ampy Automation Digilog | Improvements in and relating to electricity measuring meters |
| DE10162585C1 (en) | 2001-12-19 | 2003-04-24 | Gruner Ag | Electrical relay has auxiliary spring acting on switched contact spring in closed contact position for reducing rebound |
| DE102007011328A1 (en) * | 2007-03-08 | 2008-09-11 | Gruner Ag | relay |
| EP2131377A1 (en) * | 2008-06-04 | 2009-12-09 | Gruner AG | Relay with double bow roller |
| DE202010000595U1 (en) | 2010-01-04 | 2010-08-12 | Brockhaus, Rolf, Dr. | Baby carriage with wheel hub motor drive |
| DE202010005954U1 (en) * | 2010-04-21 | 2010-07-15 | Saia-Burgess Dresden Gmbh | Contact system for relays for switching high currents |
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2011
- 2011-07-22 CN CN 201110214152 patent/CN102867684A/en active Pending
-
2012
- 2012-07-06 CN CN201280039020.9A patent/CN103828003B/en not_active Expired - Fee Related
- 2012-07-06 EP EP12807436.6A patent/EP2729949A4/en not_active Withdrawn
- 2012-07-06 WO PCT/DK2012/050259 patent/WO2013004251A1/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008922A (en) * | 2013-10-14 | 2014-08-27 | 安徽千恩智能科技股份有限公司 | Magnetic latching relay |
| CN104008923A (en) * | 2013-10-14 | 2014-08-27 | 安徽千恩智能科技股份有限公司 | Magnetic latching relay |
| CN106471552A (en) * | 2014-07-04 | 2017-03-01 | 卡姆鲁普股份有限公司 | Data transmission system |
| CN106471552B (en) * | 2014-07-04 | 2020-12-11 | 卡姆鲁普股份有限公司 | Data transmission system |
| CN107240531A (en) * | 2016-03-29 | 2017-10-10 | 西门子公司 | A kind of contact structures and switching device |
| CN107240514A (en) * | 2016-03-29 | 2017-10-10 | 西门子公司 | A kind of contact component and switching device |
| CN109074992A (en) * | 2016-03-29 | 2018-12-21 | 西门子股份公司 | A kind of contact structures and switching device |
| FR3064814A1 (en) * | 2017-03-29 | 2018-10-05 | Johnson Electric International AG | CONTACT AND RELAY SYSTEM COMPRISING SUCH A SYSTEM |
| CN111863542A (en) * | 2020-06-23 | 2020-10-30 | 宁波北仑聚缘贸易有限公司 | Mechanical self-holding electromagnetic relay |
| CN113447691A (en) * | 2021-07-30 | 2021-09-28 | 广东佳瑞达科技有限公司 | Fireproof high-safety electric meter |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2729949A4 (en) | 2015-05-06 |
| CN103828003A (en) | 2014-05-28 |
| WO2013004251A1 (en) | 2013-01-10 |
| EP2729949A1 (en) | 2014-05-14 |
| CN103828003B (en) | 2016-08-03 |
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Application publication date: 20130109 |