CN205049627U - Electric energy meter - Google Patents
Electric energy meter Download PDFInfo
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- CN205049627U CN205049627U CN201520847997.4U CN201520847997U CN205049627U CN 205049627 U CN205049627 U CN 205049627U CN 201520847997 U CN201520847997 U CN 201520847997U CN 205049627 U CN205049627 U CN 205049627U
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- mainboard
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- affixed
- electric energy
- energy meter
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- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims description 33
- 230000007935 neutral effect Effects 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 abstract 7
- 238000010168 coupling process Methods 0.000 abstract 7
- 238000005859 coupling reaction Methods 0.000 abstract 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses an electric energy meter, including mainboard, terminal combination and the supplementary terminal combination of rigid coupling in electric energy meter's base to and rigid coupling in the magnetic latching relay of mainboard subassembly, current transformer and voltage sample foot. The terminal combination is including phase line input, phase line output, zero line input and zero line output, the magnetic latching relay subassembly includes electric relay body, the drive coil, be equipped with with the relay input conducting block of the mainboard input foot of the input rigid coupling of mainboard, respectively with relay input conducting block and electric relay body's input rigid coupling, include with the first phase line current sample foot of mainboard rigid coupling and the copper -manganese shunt of second phase line current sample foot, reach the relay output conducting block, current transformer including respectively with first zero line current sample foot, the second zero line current sample foot of mainboard rigid coupling, voltage sample foot and mainboard output and with zero line input rigid coupling. The utility model discloses can effectively satisfy strong, the withstand voltage requirement of light current 4kV of the state single -phase electric energy meter of net.
Description
Technical field
The utility model relates to surveying instrument technical field, is specifically related to a kind of electric energy meter.
Background technology
Electric energy meter is used to the instrument measuring electric energy, is measured the electric energy aggregate-value of section sometime by voltage sample and current sample.The input and output of current electric energy meter are mainly divided into two parts, and a part is forceful electric power, i.e. phase line current input and output; Another part is light current, i.e. the input and output of control signal inside and outside electric energy meter.The forceful electric power light current of existing electric energy meter inside is connected and is substantially all connected by annealed copper wire, this method of attachment of welding annealed copper wire on all parts, manufacturing process is complicated, throughput rate is low, and have 4kV requirement of withstand voltage due to state's net single-phase meter strong, weak electricity, if cable space is arranged unreasonable, be easy to and show interior Sensitive Apparatus and encounter, cause withstand voltage ging wrong.
In addition, new state net 2013 demand of technical standard, the whole table of electric energy meter, under the non-loaded environment of power frequency magnetic field intensity 0.5mT, when adding 1.15 times of rated voltage tests, can not go out more than one pulse.Current sample line of the prior art is wound around mutually by annealed copper wire to be welded on plank again, because annealed copper wire is flexible, locus is not fixed, and sample line termination and circuit pads have living space gap, under the interference of 0.5mT power frequency magnetic field, spatial joint clearance can produce induction electromotive force, test when adding 1.15 times of rated voltages and be easy to produce pulse signal, cannot meet the requirement of new state net 2013 technical manual, the leakage field gap that particularly will reduce as far as possible between sample line and wiring board when producing in batches is very difficult.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome the defect that electric energy meter of the prior art not easily meets state net single-phase electric energy meter strong, weak electricity 4kV requirement of withstand voltage, thus provides a kind of electric energy meter that can meet state net single-phase electric energy meter strong, weak electricity 4kV requirement of withstand voltage.
A kind of electric energy meter of the present utility model, comprises
Mainboard, is fixed on the base of electric energy meter;
Terminal combines, and is fixed on described base, comprises phase line input end, phase line output terminal, zero line input end and zero line output terminal;
Magnetic latching relay assembly, comprises relay body, drive coil, relay input conducting block, manganese copper diverter and relay output conducting block, wherein
The coil input end of described drive coil and coil output are electrically connected with described mainboard respectively, for driving the work of described relay body;
Described relay input conducting block, affixed with described phase line input end, and be provided with the mainboard input pin affixed with the input end of described mainboard;
Described manganese copper diverter, be arranged between relay input conducting block and relay body, and the input end inputting conducting block and described relay body respectively with described relay is affixed, described manganese copper diverter comprises sample pin and second-phase line current of the first-phase line current affixed with described mainboard and to sample pin, for phase line current of sampling;
Described relay exports conducting block, and the output terminal of one end and described relay body is affixed, and the other end is affixed with described phase line output terminal;
Current transformer, comprises mutual inductor body and the first current-carrying plate, and described mutual inductor body comprises coil, and sample pin, the second neutral line current of the first affixed with described mainboard respectively neutral line current to be sampled pin, for neutral line current of sampling; Described first current-carrying plate, is placed in described coil, one end and described zero line input end affixed, the other end and direct or indirect affixed of described zero line output terminal;
Voltage sample pin, the output terminal of one end and described mainboard is affixed, the other end and direct or indirect affixed of described zero line input end, for sampled voltage;
Auxiliary terminal combination, is fixed in described base, is electrically connected with described mainboard.
Described electric energy meter also comprises subplate that is affixed with described base, that be electrically connected with described mainboard, described subplate is fixed with LCDs, flashlight, operate a switch lamp and infrared receiving terminal device.
Described mainboard and described subplate are all pcb boards.
The described coil input end of described drive coil and described coil output are respectively for the contact pin affixed with described mainboard.
Described magnetic latching relay assembly also comprises relay test pin, is fixed in described relay and exports conducting block, and affixed with described mainboard.
Described relay test pin and described this body by integral forming of relay, and plug-in mounting is welded on described mainboard.
Described first-phase line current sampling pin and described second-phase line current sampling pin all in horizontal tabular, and are in same level with described mainboard, and plug-in mounting is welded in described mainboard.
Described relay input conducting block, is threaded with described phase line input end, welds with described manganese copper diverter;
Described relay exports conducting block, with described this body by integral forming of relay, is threaded with described phase line output terminal;
Described mainboard input pin, described voltage sample pin, described first neutral line current sampling pin, and described second neutral line current sampling pin, be all with plug-in mounting welding connected mode and described mainboard affixed.
Described current transformer also comprises
Second current-carrying plate, the zero line output terminal combined with described terminal is threaded;
Connect guide plate, connect described first current-carrying plate and described second current-carrying plate, and be connected with described voltage sample pin.
Described mainboard offers at least two mounting holes, and the reference column extended with the bottom by described base is connected, and described base is also provided with the buckle for fixing described mainboard, and described mainboard combines with described auxiliary terminal and is threaded.
Technical solutions of the utility model, tool has the following advantages:
1. the electric energy meter that provides of the utility model, comprises mainboard, terminal combination, magnetic latching relay, current transformer, voltage sample pin and the combination of auxiliary terminal.Described mainboard, described terminal combination and described auxiliary terminal combination are all fixed on the base of electric energy meter, described magnetic latching relay, described current transformer and described voltage sample pin are all fixed in described mainboard, wherein, described terminal combination, described current transformer, the manganese copper diverter of described voltage sample pin and described magnetic latching relay assembly belongs to strong current component, described auxiliary terminal combination belongs to light current assembly, and it is strong, light current assembly and mainboard, connection between base adopts affixed, the affixed rigid connection referred to by the realization of rigid link herein, as threaded post, the forms such as contact pin.Compared to the mode connected by soft copper wire of the prior art, the relative position of strong, weak electricity assembly is all fixing, and the inner space of electric energy meter does not have in disorder wire, avoid because strong, weak electricity module position is not fixed, or wire is in disorder touches the Sensitive Apparatus in electric energy meter and the problem of withstand voltage caused, state net single-phase electric energy meter strong, weak electricity 4kV requirement of withstand voltage effectively can be met.In addition, that voltage signal flexible circuit conductor by welding with zero line input end and mainboard respectively realizes compared to voltage sample of the prior art, the utility model eliminates voltage signal flexible cord, to realize voltage sample with zero line input end and the affixed voltage sample pin of mainboard respectively, not only can effectively avoid withstand voltage ging wrong, also there is solid and reliable, the better advantage of production technology.
2. the electric energy meter that provides of the utility model, described first-phase line current sampling pin and described second-phase line current sampling pin all in horizontal tabular, and are in same level with described mainboard, and plug-in mounting is welded in described mainboard.Because described first-phase line current sampling pin and described second-phase line current sampling pin are all in horizontal tabular, and be in same level with described mainboard, therefore, under 0.5mT power frequency magnetic field environment, when whole table lies in a horizontal plane in XYZ coordinate system, phase line sample circuit at the induction sectional area of X-direction and Y direction no better than 0, so the induction electromotive force in these 2 directions is almost 0, can not inductive component be produced, only have and can form inductive component in the Z-axis direction, and be fixedly connected on mainboard in the mode of plug-in mounting welding owing to being first-phase line current sampling pin and second-phase line current sampling pin, so the whole table of electric energy meter is almost fixing at the inductive component of Z-direction, can by plank being drawn contrary inductance loop to offset, interference like this from three directions can effectively control, can the generation of effective suppressor pulse signal under 0.5mT power frequency magnetic field environment, meet new state net 2013 technical manual to the whole table of single-phase electric energy meter under the non-loaded environment of power frequency magnetic field intensity 0.5mT, the requirement of more than one pulse signal is not produced when adding 1.15 times of rated voltages.
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 embodiments 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.
The three-dimensional exploded view of electric energy meter of Fig. 1 for providing in the first embodiment of the present utility model;
Fig. 2 is the three-dimensional combination figure of the subelement of the electric energy meter shown in Fig. 1;
Three-dimensional cutaway view after the combination that Fig. 3 is the electric energy meter shown in Fig. 1;
The chassis interior structural perspective that Fig. 4 is the electric energy meter shown in Fig. 1;
Fig. 5 is the three-dimensional combination figure of electric energy meter shown in Fig. 1;
Description of reference numerals:
1-mainboard; 11-mounting hole; 2-base; 21-reference column; 211-reference column threaded hole; 22-buckle; 3-terminal combines; 31-phase line input end; 32-phase line output terminal; 33-zero line input end; 34-zero line output terminal; 4-magnetic latching relay assembly; 41-relay body; 42-relay input conducting block; 421-mainboard input pin; 43-manganese copper diverter; 431-first-phase line current sampling pin; 432-second-phase line current sampling pin; 44-relay exports conducting block; 45-coil input end; 46-coil output; 47-relay test pin; 5-current transformer; 51-mutual inductor body; 511-first neutral line current sampling pin; 512-second neutral line current sampling pin; 52-first current-carrying plate; 53-second current-carrying plate; 54-connects guide plate; 6-voltage sample pin; 7-assists terminal to combine; 8-subplate; 81-subplate through hole; 9-soft arranging wire.
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 " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " 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; 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 embodiment of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
As shown in Figure 1-Figure 3, a kind of electric energy meter of the present utility model, comprises
Mainboard 1, is fixed on the base 2 of electric energy meter;
Terminal combination 3, is fixed on described base 2, comprises phase line input end 31, phase line output terminal 32, zero line input end 33 and zero line output terminal 34;
Magnetic latching relay assembly 4, comprises relay body 41, drive coil, relay input conducting block 42, manganese copper diverter 43 and relay output conducting block 44, wherein
The coil input end 45 of described drive coil and coil output 46 are electrically connected with described mainboard 1 respectively, for driving the work of described relay body 41;
Described relay input conducting block 42, affixed with described phase line input end 31, and be provided with the mainboard input pin 421 affixed with the input end of described mainboard 1; The conducting block of relay input herein 42 realizes with the affixed mode be threaded connection of phase line input end 31, in other interchangeable embodiments, also can adopt the mode of directly welding; Mainboard input pin 421 is realized with the affixed mode of being welded again by first plug-in mounting of mainboard 1, in other interchangeable embodiments, also can adopt and directly realize in the mode of the form grafting of interference fit.
Described manganese copper diverter 43, be arranged between relay input conducting block 42 and relay body 41, and the input end inputting conducting block 42 and described relay body 41 respectively with described relay is affixed, adopt the mode of directly welding affixed herein, described manganese copper diverter 43 comprises sample pin 431 and second-phase line current of the first-phase line current affixed with described mainboard 1 and to sample pin 432, for phase line current of sampling; The mode of herein welding with the affixed employing plug-in mounting of mainboard 1 realizes.
Described relay exports conducting block 44, and the output terminal of one end and described relay body 41 is affixed, and the other end is affixed with described phase line output terminal 32;
Current transformer 5, comprise mutual inductor body 51 and the first current-carrying plate 52, described mutual inductor body 51 comprises coil, and the first affixed with described mainboard 1 respectively neutral line current pin 511, second neutral line current of sampling to be sampled pin 512, for neutral line current of sampling; Described first current-carrying plate 52, is placed in described coil, one end and described zero line input end 33 affixed, the other end and direct or indirect affixed of described zero line output terminal 34;
Voltage sample pin 6, the output terminal of one end and described mainboard 1 is affixed, the other end and direct or indirect affixed of described zero line input end 33, for sampled voltage;
Auxiliary terminal combination 7, is fixed in described base 2, is electrically connected with described mainboard 1.
Electric energy meter of the present utility model, terminal combines, current transformer, the manganese copper diverter of voltage sample pin and magnetic latching relay assembly belongs to strong current component, auxiliary terminal combination belongs to light current assembly, and it is strong, light current assembly and mainboard 1, connection between base 2 adopts affixed, compared to the mode connected to wire by soft copper of the prior art, by force, the relative position of light current assembly is all fixing, and the inner space of electric energy meter does not have in disorder wire, avoid because of strong, light current module position is not fixed, or wire is in disorder touches the Sensitive Apparatus in electric energy meter and the problem of withstand voltage caused, effectively can meet state's net single-phase electric energy meter strong, light current 4kV requirement of withstand voltage.
In addition, that voltage signal flexible circuit conductor by welding with zero line input end 33 and mainboard 1 respectively realizes compared to voltage sample of the prior art, the utility model eliminates voltage signal flexible cord, to realize voltage sample with zero line input end 33 and the affixed voltage sample pin 6 of mainboard 1 respectively, not only can effectively avoid withstand voltage ging wrong, also there is solid and reliable, the better advantage of production technology.
Particularly, in the present embodiment, described auxiliary terminal combination comprises pulse per second (PPS) terminal, multifunction terminal, RS485 terminal etc.
Electric energy meter of the present utility model only can arrange a circuit board, two circuit boards also can be set, in order to optimize the space layout in electric energy meter, in the electric energy meter of the present embodiment, consult Fig. 1 and Fig. 4, except comprising described mainboard 1, also comprising subplate 8 that is affixed with described base 2, that be electrically connected with described mainboard 1, described subplate 8 is fixed with LCDs, flashlight, operate a switch lamp and infrared receiving terminal device.In the present embodiment, described subplate 8 is electrically connected with mainboard 1 by soft arranging wire 9.
Described mainboard 1 and described subplate 8 are all pcb boards.
In the present embodiment, the described coil input end 45 of described drive coil and described coil output 46 are respectively for the contact pin affixed with described mainboard 1.Affixed mode is plug-in mounting welding particularly, is inserted to after in the corresponding aperture of mainboard 1, welds to fix further contact pin with the junction of mainboard 1 by two described contact pins.
Described magnetic latching relay assembly 4 also comprises relay test pin 47, is fixed in described relay and exports conducting block 44, and affixed with described mainboard 1.Described relay test pin 47 is for detecting the contact open and-shut mode of relay body 41.
Described relay test pin 47 can have multiple with the concrete affixed mode of relay body 41, mainboard 1, and in the present embodiment, preferred described relay test pin 47 is one-body molded with described relay body 41, and plug-in mounting is welded on described mainboard 1.This integrated affixed mode, technique is simple, firmly affixed.
Described first-phase line current sampling pin 431 and described second-phase line current sampling pin 432 all in horizontal tabular, and are in same level with described mainboard 1, and plug-in mounting is welded in described mainboard 1.Because described first-phase line current sampling pin 431 and described second-phase line current sampling pin 432 are all in horizontal tabular, and be in same level with described mainboard 1, therefore, under 0.5mT power frequency magnetic field environment, when whole table lies in a horizontal plane in XYZ coordinate system, phase line sample circuit at the induction sectional area of X-direction and Y direction no better than 0, so the induction electromotive force in these 2 directions is almost 0, can not inductive component be produced, only have and can form inductive component in the Z-axis direction, and be fixedly connected on mainboard 1 in the mode of plug-in mounting welding owing to being first-phase line current sampling pin 431 and second-phase line current sampling pin 432, so the whole table of electric energy meter is almost fixing at the inductive component of Z-direction, can by plank being drawn contrary inductance loop to offset, interference like this from three directions can effectively control, the generation of suppressor pulse signal under 0.5mT power frequency magnetic field environment, meet new state net 2013 technical manual to the whole table of single-phase electric energy meter under the non-loaded environment of power frequency magnetic field intensity 0.5mT, the requirement of more than one pulse signal is not produced when adding 1.15 times of rated voltages.
Particularly, in the present embodiment, described relay input conducting block 42, is threaded with described phase line input end 31, welds with described manganese copper diverter 43;
Described relay exports conducting block 44, one-body molded with described relay body 41, is threaded with described phase line output terminal 32;
Described mainboard input pin 421, described voltage sample pin 6, described first neutral line current sampling pin 511, and described second neutral line current sampling pin 512, be all with plug-in mounting welding connected mode and described mainboard 1 affixed.
The mode that employing is threaded and plug-in mounting welds, can make each element be fixed after completing installation location again, be convenient to install.
Described current transformer 5 also comprises
Second current-carrying plate 53, the zero line output terminal 34 combining 3 with described terminal is threaded;
Connect guide plate 54, connect described first current-carrying plate 52 and described second current-carrying plate 53, and be connected with described voltage sample pin 6.
Described voltage sample pin 6 by be connected that guide plate 54 is affixed realizes the electrical connection with zero line input end 33, the position of voltage sample pin 6 can be made when meeting proportional space layout, and what realize with mainboard 1 is affixed.
As shown in Figure 5, described mainboard 1 offers at least two mounting holes 11, in the present embodiment, the quantity of described mounting hole 11 is 4, be connected with the corresponding reference column 21 that the bottom by described base 2 is extended, described base 2 is also provided with the buckle 22 for fixing described mainboard 1, and described mainboard 1 combines 7 with described auxiliary terminal and is threaded.This mounting means, the installation that mainboard 1 and base 2, auxiliary terminal are combined between 7 is firm, and detachably.
In addition, in the present embodiment, reference column threaded hole 211 is offered further in the described reference column 21 of described base 2, described subplate 8 offers the subplate through hole 81 corresponding with reference column 21, screw is threaded with reference column threaded hole 211 through through hole 81, realizes being fixedly connected with of subplate 8 and base 2.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.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 embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (10)
1. an electric energy meter, is characterized in that: comprise
Mainboard (1), is fixed on the base (2) of electric energy meter;
Terminal combination (3), is fixed on described base (2), comprises phase line input end (31), phase line output terminal (32), zero line input end (33) and zero line output terminal (34);
Magnetic latching relay assembly (4), comprises relay body (41), drive coil, relay input conducting block (42), manganese copper diverter (43) and relay and exports conducting block (44), wherein
Coil input end (45) and the coil output (46) of described drive coil are electrically connected with described mainboard (1) respectively, for driving the work of described relay body (41);
Described relay input conducting block (42), affixed with described phase line input end (31), and be provided with the mainboard input pin (421) affixed with the input end of described mainboard (1);
Described manganese copper diverter (43), be arranged between relay input conducting block (42) and relay body (41), and the input end inputting conducting block (42) and described relay body (41) respectively with described relay is affixed, described manganese copper diverter (43) comprises sample pin (431) and second-phase line current of the first-phase line current affixed with described mainboard (1) and to sample pin (432), for phase line current of sampling;
Described relay exports conducting block (44), and the output terminal of one end and described relay body (41) is affixed, and the other end is affixed with described phase line output terminal (32);
Current transformer (5), comprise mutual inductor body (51) and the first current-carrying plate (52), described mutual inductor body (51) comprises coil, and sample pin (511), the second neutral line current of first neutral line current affixed with described mainboard (1) to be sampled pin (512), for neutral line current of sampling respectively; Described first current-carrying plate (52), is placed in described coil, one end and described zero line input end (33) affixed, the other end and direct or indirect affixed of described zero line output terminal (34);
Voltage sample pin (6), the output terminal of one end and described mainboard (1) is affixed, the other end and direct or indirect affixed of described zero line input end (33), for sampled voltage;
Auxiliary terminal combination (7), is fixed in described base (2), is electrically connected with described mainboard (1).
2. electric energy meter according to claim 1, it is characterized in that: also comprise subplate (8) that is affixed with described base (2), that be electrically connected with described mainboard (1), (8) are fixed with LCDs, flashlight to described subplate, operate a switch lamp and infrared receiving terminal device.
3. electric energy meter according to claim 2, is characterized in that: described mainboard (1) and described subplate (8) are all pcb boards.
4. electric energy meter according to claim 1, is characterized in that: the described coil input end (45) of described drive coil and described coil output (46) are respectively for the contact pin affixed with described mainboard (1).
5. electric energy meter according to claim 1, it is characterized in that: described magnetic latching relay assembly (4) also comprises relay test pin (47), be fixed in described relay and export conducting block (44), and affixed with described mainboard (1).
6. electric energy meter according to claim 5, is characterized in that: described relay test pin (47) is one-body molded with described relay body (41), and plug-in mounting is welded on described mainboard (1).
7. electric energy meter according to claim 1, it is characterized in that: described first-phase line current sampling pin (431) and described second-phase line current sampling pin (432) are all in horizontal tabular, and being in same level with described mainboard (1), plug-in mounting is welded in described mainboard (1).
8. electric energy meter according to claim 1, is characterized in that:
Described relay input conducting block (42), is threaded with described phase line input end (31), welds with described manganese copper diverter (43);
Described relay exports conducting block (44), one-body molded with described relay body (41), is threaded with described phase line output terminal (32);
Described mainboard input pin (421), described voltage sample pin (6), described first neutral line current sampling pin (511), and described second neutral line current sampling pin (512), be all with plug-in mounting welding connected mode and described mainboard (1) affixed.
9. electric energy meter according to claim 1, is characterized in that: described current transformer (5) also comprises
Second current-carrying plate (53), the zero line output terminal (34) combining (3) with described terminal is threaded;
Connect guide plate (54), connect described first current-carrying plate (52) and described second current-carrying plate (53), and be connected with described voltage sample pin (6).
10. electric energy meter according to claim 1, it is characterized in that: described mainboard (1) offers at least two mounting holes (11), be connected with the corresponding reference column (21) that the bottom by described base (2) is extended, described base (2) is also provided with the buckle (22) for fixing described mainboard (1), and described mainboard (1) combines (7) with described auxiliary terminal and is threaded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847997.4U CN205049627U (en) | 2015-10-29 | 2015-10-29 | Electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847997.4U CN205049627U (en) | 2015-10-29 | 2015-10-29 | Electric energy meter |
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| CN205049627U true CN205049627U (en) | 2016-02-24 |
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| CN105866485A (en) * | 2016-04-28 | 2016-08-17 | 浙江豪顿电气有限公司 | Integrated intelligent electricity meter with earth leakage protection function |
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| CN108564781A (en) * | 2018-06-30 | 2018-09-21 | 宁波三星医疗电气股份有限公司 | A kind of concentrator |
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| CN108666174A (en) * | 2018-05-23 | 2018-10-16 | 肖明之 | Integral type magnetic latching relay and assemble method |
| CN111693769A (en) * | 2019-03-15 | 2020-09-22 | 宁波三星智能电气有限公司 | 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 |
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| WO2018032710A1 (en) * | 2016-08-16 | 2018-02-22 | 宁波三星医疗电气股份有限公司 | Modular auxiliary terminal box |
| CN107765052A (en) * | 2016-08-16 | 2018-03-06 | 宁波三星医疗电气股份有限公司 | A kind of modular auxiliary terminal box |
| CN108169552A (en) * | 2018-01-02 | 2018-06-15 | 华立科技股份有限公司 | Direct current energy meter and direct current energy metering device based on tunnel type magneto-resistor |
| CN108666174A (en) * | 2018-05-23 | 2018-10-16 | 肖明之 | Integral type magnetic latching relay and assemble method |
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| CN108564780A (en) * | 2018-06-30 | 2018-09-21 | 宁波三星医疗电气股份有限公司 | A kind of concentrator |
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| CN108564779B (en) * | 2018-06-30 | 2023-07-28 | 宁波三星医疗电气股份有限公司 | Concentrator |
| CN108564782B (en) * | 2018-06-30 | 2023-08-01 | 宁波三星医疗电气股份有限公司 | Concentrator |
| CN108564780B (en) * | 2018-06-30 | 2023-09-01 | 宁波三星医疗电气股份有限公司 | Concentrator |
| CN108564781B (en) * | 2018-06-30 | 2023-09-01 | 宁波三星医疗电气股份有限公司 | Concentrator |
| CN111693769A (en) * | 2019-03-15 | 2020-09-22 | 宁波三星智能电气有限公司 | 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 |
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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. |