CN204905166U - Magnetic latching relay for electric energy meter - Google Patents
Magnetic latching relay for electric energy meter Download PDFInfo
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- CN204905166U CN204905166U CN201520752470.3U CN201520752470U CN204905166U CN 204905166 U CN204905166 U CN 204905166U CN 201520752470 U CN201520752470 U CN 201520752470U CN 204905166 U CN204905166 U CN 204905166U
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- electric current
- intercell connector
- energy meter
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- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 230000005284 excitation Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Abstract
The utility model discloses a magnetic latching relay for electric energy meter, include: first electric current connecting strip, second electric current connecting strip and electric relay body, first electric current connecting strip and second electric current connecting strip all are located the electric relay body bottom, first electric current connecting strip is used for being connected with the power live wire, second electric current connecting strip is used for being connected with the load, the middle part of first electric current connecting strip is provided with the sampling resistor, set up including three aciculiform bellying on one side border of first electric current connecting strip, wherein two are located respectively the both sides of sampling resistor as two current sample pins, remain an one side that lies in near the tip of being connected with the power live wire, as the voltage sample pin, set up including an aciculiform bellying, as carrier communication live wire pin on one side border of second electric current connecting strip. Above -mentioned magnetic latching relay for electric energy meter can reduce the volume and the cost of electric energy meter.
Description
Technical field
The utility model relates to low voltage electrical apparatus technology field, is specifically related to a kind of electric energy meter magnetic latching relay.
Background technology
Magnetic latching relay is a kind of under the effect of drive control signal, utilizes the interaction of solenoid and permanent magnet, relative motion realizes closed and disconnected circuit.The control element being switched on or switched off state can be still kept after drive control signal disappears.There is the feature of energy savings, working stability, be widely used in electric system protection device and all kinds of telemechanical, remote control and communicator.Especially be widely used in intelligent electric energy meter, as the main element of intelligent electric energy meter.
In order to adapt to intelligentized demand, most of electric energy meter can configure carrier communication module, the signaling interface of current carrier communication module adopts flexible cord interface usually, and carrier communication fire-wire interfaces is usually designed into the front end of relay, relay causes after operating a switch can not with the devices communicating in user family.So just need extra interpolation carrier wave coupling circuit, thus cause that cost is high and PCB size is larger, be unfavorable for the miniaturization of electric energy meter (especially overseas main flow phenotype guide rail type electrical energy meter), the market demand of a few days ago increasingly competitive electric energy meter market for electric energy meter low cost can not be met simultaneously.In addition, extra interpolation carrier wave coupling circuit may introduce other comparatively complicated electrical problems, such as relay has been operated a switch, but exist owing to there being the not good carrier wave coupling circuit of design, relay rear end can be caused may to there is faint alternating voltage, and this faint alternating voltage may introduce a little security hidden trouble.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome the defect that electric energy meter cost in prior art is high, volume is large etc., thus provides a kind of electric energy meter magnetic latching relay that can reduce electric energy meter volume and cost.
For this reason, a kind of electric energy meter magnetic latching relay of the present utility model, comprise: the first electric current intercell connector, the second electric current intercell connector and relay body, described first electric current intercell connector and the second electric current intercell connector are all positioned at relay body bottom portion, described first electric current intercell connector is used for being connected with power firestreak, and described second electric current intercell connector is used for being connected with load;
The middle part of described first electric current intercell connector is provided with sampling resistor; The edge, side of described first electric current intercell connector is arranged and comprises three aciculiform lug bosses, wherein two lay respectively at the both sides of described sampling resistor, as two current sample pins, remain a side be positioned near the end be connected with power firestreak, as voltage sample pin;
The edge, side of described second electric current intercell connector is arranged and comprises an aciculiform lug boss, as carrier communication live wire pin.
Preferably, be connected between described aciculiform lug boss with described first electric current intercell connector or with the mode of being one of the forming between described second electric current intercell connector.
Preferably, between described aciculiform lug boss with described first electric current intercell connector or with between described second electric current intercell connector for being connected by welding manner.
Preferably, described first electric current intercell connector and/or described second electric current intercell connector are zigzag.
Preferably, also comprise the first excitation coil and drive pin and the second excitation coil to drive pin, it is all positioned at the top of relay body.
Preferably, described electric energy meter is single-phase guide rail type electrical energy meter.
Technical solutions of the utility model, tool has the following advantages:
1. the electric energy meter magnetic latching relay that provides of the utility model, by arranging carrier communication live wire pin on the second electric current intercell connector, directly can be connected with the live wire input of carrier communication module by this pin, this carrier communication live wire pin (interface) is changed to the rear end of relay, thus complicated carrier wave coupling circuit can be eliminated, simplify circuit design, and then volume and the cost of electric energy meter can be reduced, improve the market competitiveness of electric energy meter.
2. the electric energy meter magnetic latching relay that provides of the utility model, by being arranged at relay bodies top, relative with the relay body bottom portion that the first electric current intercell connector and the second electric current intercell connector are positioned at, with leaving as far as possible far away, avoid the mutual interference of electromagnetic field, improve anti-electromagnetic interference capability.And drive pin, cooperatively interacting between the second excitation coil driving pin and carrier communication live wire pin by the first excitation coil, effect that is fixing, locating circuit board can be played well, improve installation steadiness.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is execution modes more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of the electric energy meter magnetic latching relay of a kind of embodiment of the utility model;
Fig. 2 is the vertical view of the electric energy meter magnetic latching relay of a kind of embodiment of the utility model.
Reference numeral: 1-first electric current intercell connector, 2-second electric current intercell connector, 3-relay body, 4-first excitation coil drives pin, and 5-second excitation coil drives pin, 11-voltage sample pin, 12,13-current sample pin, 14-sampling resistor, 21-carrier communication live wire pin.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.Unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In addition, if below in the described different execution mode of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
Fig. 1 shows a kind of stereogram of electric energy meter magnetic latching relay of embodiment, as shown in Figure 1, electric energy meter magnetic latching relay comprises: the first electric current intercell connector 1, second electric current intercell connector 2 and relay body 3, first electric current intercell connector 1 and the second electric current intercell connector 2 are all positioned at bottom relay body 3, first electric current intercell connector 1 is for being connected with power firestreak, and the second electric current intercell connector 2 is for being connected with load.
The middle part of the first electric current intercell connector 1 is provided with sampling resistor 14; The edge, side of the first electric current intercell connector 1 is arranged and comprises three aciculiform lug bosses, wherein two lay respectively at the both sides of sampling resistor 14, as two current sample pins 12,13, remain a side be positioned near the end be connected with power firestreak, as voltage sample pin 11.
The edge, side of the second electric current intercell connector 2 is arranged and comprises an aciculiform lug boss, as carrier communication live wire pin 21.
Above-mentioned electric energy meter magnetic latching relay, by arranging carrier communication live wire pin on the second electric current intercell connector, directly can be connected with the live wire input of carrier communication module by this pin, this carrier communication live wire pin (interface) is changed to the rear end of relay, thus complicated carrier wave coupling circuit can be eliminated, simplify circuit design, and then volume and the cost of electric energy meter can be reduced, improve the market competitiveness of electric energy meter.
Preferably, can the mode of being one of the forming to be connected between aciculiform lug boss with the first electric current intercell connector 1 or with between the second electric current intercell connector 2, also can for being connected by welding manner.Can manufacture craft be simplified by integrally formed mode, improve reliability, enhance productivity.Aciculiform lug boss can be set as required neatly by welding manner, can be cost-saving further.
Preferably, the first electric current intercell connector 1 and the second electric current intercell connector 2 can be designed to zigzag according to the shell sizes of electric energy meter respectively, to adapt to the various installation requirements of electric energy meter.
Preferably, above-mentioned electric energy meter magnetic latching relay also comprises the first excitation coil and drives pin 4 and the second excitation coil to drive pin 5, and it is all positioned at the top of relay body 3.First excitation coil drives pin 4 and the second excitation coil to drive pin 5 for being connected with the excitation coil two ends of magnetic latching relay respectively, for it provides drive current.By being arranged at relay bodies top, relative with the relay body bottom portion that the first electric current intercell connector and the second electric current intercell connector are positioned at, with leaving as far as possible far away, avoid the mutual interference of electromagnetic field, improve anti-electromagnetic interference capability.And drive pin, cooperatively interacting between the second excitation coil driving pin and carrier communication live wire pin by the first excitation coil, effect that is fixing, locating circuit board can be played well, improve installation steadiness.
Preferably, above-mentioned electric energy meter is single-phase guide rail type electrical energy meter, electric energy meter can be made to meet clamp technological requirement by above embodiment, and the simple and reliable requirement of carrier interface circuit, namely can adapt to the design of domestic and international associated guide tracks well and Corporation system is produced, managed, the clamp technique adopted on guide rail type electrical energy meter of management expectancy.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (6)
1. an electric energy meter magnetic latching relay, comprise: the first electric current intercell connector (1), the second electric current intercell connector (2) and relay body (3), described first electric current intercell connector (1) and the second electric current intercell connector (2) are all positioned at relay body (3) bottom, described first electric current intercell connector (1) is for being connected with power firestreak, and described second electric current intercell connector (2) is for being connected with load;
The middle part of described first electric current intercell connector (1) is provided with sampling resistor (14); The edge, side of described first electric current intercell connector (1) is arranged and comprises three aciculiform lug bosses, wherein two lay respectively at the both sides of described sampling resistor (14), as two current sample pins (12,13), remain a side be positioned near the end be connected with power firestreak, as voltage sample pin (11);
It is characterized in that, the edge, side of described second electric current intercell connector (2) is arranged and comprises an aciculiform lug boss, as carrier communication live wire pin (21).
2. electric energy meter magnetic latching relay according to claim 1, it is characterized in that, be connected between described aciculiform lug boss with described first electric current intercell connector (1) or with the mode of being one of the forming between described second electric current intercell connector (2).
3. electric energy meter magnetic latching relay according to claim 1, it is characterized in that, between described aciculiform lug boss with described first electric current intercell connector (1) or with between described second electric current intercell connector (2) for being connected by welding manner.
4. electric energy meter magnetic latching relay according to claim 1, is characterized in that, described first electric current intercell connector (1) and/or described second electric current intercell connector (2) are in zigzag.
5. electric energy meter magnetic latching relay according to claim 1, it is characterized in that, also comprising the first excitation coil drives pin (4) and the second excitation coil to drive pin (5), and it is all positioned at the top of relay body (3).
6. the electric energy meter magnetic latching relay according to any one of claim 1-5, is characterized in that, described electric energy meter is single-phase guide rail type electrical energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752470.3U CN204905166U (en) | 2015-09-25 | 2015-09-25 | Magnetic latching relay for electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520752470.3U CN204905166U (en) | 2015-09-25 | 2015-09-25 | Magnetic latching relay for electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN204905166U true CN204905166U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520752470.3U Active CN204905166U (en) | 2015-09-25 | 2015-09-25 | Magnetic latching relay for electric energy meter |
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| Country | Link |
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| CN (1) | CN204905166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406849A (en) * | 2019-01-07 | 2019-03-01 | 江苏安科瑞电器制造有限公司 | A kind of acquisition control module and method of multi-user pre-payment electric energy meter |
| CN111830301A (en) * | 2019-04-23 | 2020-10-27 | 宁波三星智能电气有限公司 | Electric energy meter |
-
2015
- 2015-09-25 CN CN201520752470.3U patent/CN204905166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406849A (en) * | 2019-01-07 | 2019-03-01 | 江苏安科瑞电器制造有限公司 | A kind of acquisition control module and method of multi-user pre-payment electric energy meter |
| CN111830301A (en) * | 2019-04-23 | 2020-10-27 | 宁波三星智能电气有限公司 | Electric energy meter |
| CN111830301B (en) * | 2019-04-23 | 2023-03-31 | 宁波三星智能电气有限公司 | Electric energy meter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Zhengtai Instrument Measurement Industrial Park, No.1 Liangce Road, Beibaixiang Town, Leqing City, Wenzhou City, Zhejiang Province, 325603 Patentee after: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG CHINT INSTRUMENT & METER Co.,Ltd. |