CN105403744B - One kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter - Google Patents
One kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter Download PDFInfo
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- CN105403744B CN105403744B CN201510849208.5A CN201510849208A CN105403744B CN 105403744 B CN105403744 B CN 105403744B CN 201510849208 A CN201510849208 A CN 201510849208A CN 105403744 B CN105403744 B CN 105403744B
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- current transformer
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Abstract
The invention discloses one kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, and current transformer chamber is provided with electric meter case body；Current transformer chamber side is provided with plug-and-pull port；Current transformer intracavitary is provided with integral type current transformer；The leading-out terminal of pull-switch is integrally connected the conductor wire in formula current transformer；The conductor wire other end connects relay；Integral type current transformer includes radiating shielding box；Current transformer is uniformly provided with radiating shielding box；Two terminals of current transformer are respectively connected with thin resilient contact；Thin resilient contact connection reading mechanism；Conductor wire both ends are provided with thick resilient contact；Thin resilient contact and thick resilient contact are uniformly located on radiating shielding box bottom surface；Radiating shielding box two side is provided with slide.It can effectively prevent interference of the external magnetic field to ammeter reading, and greatly improve the assembling speed and maintenance speed of ammeter, and enable the current transformer in ammeter to change use repeatedly, improve ammeter service life.
Description
Technical field
The invention belongs to ammeter technical field, specially one kind can fast load and unload anti-tampering electromagnetic current transducer intelligence
Ammeter.
Background technology
Ammeter is a kind of instrument for being used for measuring electric energy, is widely used in power industry.Intelligent electric meter is on outside constant
Magnetic field is to electromagnetic current transducer（CT）The magnetic disturbance of sampling has following require：300mT magnet is done in ammeter bottom
Disturb, ammeter measuring accuracy（CT sampling precisions）Deviation answers≤2%.Existing intelligent electric meter is as shown in figure 1, this intelligent electric meter
Structure is that outer net electric wire is connected and exported, Current Mutual Inductance with former relay 33 through current transformer 32 by wire connector 31
The sensing electric wire connection former ammeter reading mechanism 34 of device 32；The inside of current transformer 32 has an annular core, ring on annular core
It is wound with sensing electric wire；When the electric current in outer net electric wire flows through current transformer 32, iron core magnetic strength can be produced on annular core
Line, iron core magnetic induction line make the sensing electric wire on current transformer 32 produce secondary current and are transferred to former ammeter reading mechanism 34,
To reach metering purpose of the PCB core piece to size of current.Current transformer is exposed to be fixed on ammeter in existing intelligent electric meter
Interior, being highly susceptible to the interference of external magnetic field causes current indication to produce error, reduces electricity reading precision.Due to electricity
Current transformer should be fixed on ammeter when mounted, and it senses electric wire and also needs to be connected with ammeter reading mechanism, therefore it is filled
With complex procedures, assembling speed is slow, reduces production efficiency.If it is difficult to repair ammeter, user after current transformer damage
A new ammeter can only be re-replaced, consequently leads to the waste of resource.
By patent retrieval, following known prior art be present：
Patent 1：
Application number：201320861715.7 the applying date：2013-12-25, the open day for announcing：2014-06-25, the practicality
It is new to disclose a kind of intelligent electric meter current transformer, including an induction coil being wrapped in insulation crust, the sense
Answer coil to include an annular core and the enamel-covered wire being wrapped in outside annular core, worn in described induction coil provided with one
Hole, in addition to a copper bar, described copper bar is vertically in the perforation, and the copper bar and induction coil are positioned at an electromagnetic shielding
In box, the electromagnetic shielding box includes a round metal box and the insulating barrier being covered on round metal box, the electromagnetic shielding box
On be additionally provided with the ground wire wiring of connection round metal box, the head and tail of the enamel-covered wire of the induction coil is connected with measurement end line, institute
Measurement end line is stated to stretch out outside insulation crust and electromagnetic shielding box.The beneficial effects of the utility model are：Extraneous electromagnetic field by
In the presence of electromagnetic shielding box, can not have influence on completely in induction coil, so that the measurement accuracy of intelligent electric meter is greatly
Improve, add the reliability and accuracy of ammeter.
Patent 2：
Application number：201320236205. 0, the applying date：2013-05-03, authorized announcement date：2013.09.11, the practicality
It is new to disclose a kind of intelligent electric meter of the electromagnetic current transducer with diamagnetic structure, including ammeter base, relay, electricity
Magnetic-type current transformer, binding post and primary current conductor；Relay, electromagnetic current transducer and binding post are located respectively
In the position being adapted；Electromagnetic current transducer has annular core；Primary current conductor is connected to relay and terminals
Between son and through electromagnetic current transducer annular core；Electromagnetic current transducer is arranged on ammeter base and makes ring
The axis of shape iron core is perpendicular to the baseplane of ammeter base.As a result of by the annular core of electromagnetic current transducer
Axis is arranged perpendicular to the baseplane of ammeter base so that the annular core of electromagnetic current transducer passes through in primary current
When caused magnetic field be mutually perpendicular to magnetic field caused by the magnet of ammeter bottom, without there is iron-clad, just can resist outside magnetic
Interference of the field to electromagnetic current transducer.
Through the above search, it has been found that above technical scheme can not influence the novelty of the present invention, the combination of above patent
The creativeness of the present invention can not be influenceed.
The content of the invention
The purpose of the present invention is to be directed to problem above, there is provided one kind can fast load and unload anti-tampering electromagnetic current transducer intelligence
Energy ammeter, it can effectively prevent interference of the external magnetic field to ammeter reading, and greatly improve assembling speed and the maintenance of ammeter
Speed, and enable the current transformer in ammeter to change use repeatedly, improve ammeter service life.
To realize object above, the technical solution adopted by the present invention is：One kind can fast load and unload anti-tampering electromagnetic type electric current
Transformer intelligent ammeter, it includes housing 1 and the bucker 2 being arranged on outside it, separated in the housing 1 by upper lower clapboard 7
For epicoele and cavity of resorption, cavity of resorption is divided into ante-chamber summation current transformer chamber 14 by front and rear dividing plate 25；The current transformer chamber 14
Side is provided with plug-and-pull port 3；The upper intracavitary is provided with reading mechanism 8；Pull-switch 5 and relay are provided with the ante-chamber
6；Integral type current transformer 13 is provided with the current transformer chamber 14；The leading-out terminal of the pull-switch 5 is integrally connected
Conductor wire 27 in formula current transformer 13；The other end of conductor wire 27 connects relay 6；The integral type current transformer
13 include radiating shielding box 17；Current transformer 32 is evenly arranged with the radiating shielding box 17；The current transformer 32
Two terminals be respectively connected with thin resilient contact 26；The thin resilient contact 26 connects reading mechanism 8；27 liang of the conductor wire
End is provided with thick resilient contact 16；The thin resilient contact 26 and thick resilient contact 16 are uniformly arranged on radiating shielding box 17 bottom surface
On；17 liang of sides of the radiating shielding box are provided with slide 20.
Further, the radiating shielding box 17 is high permeability material；Radiating shielding box 17 outer surface is uniformly arranged
There is radiating groove 171；Described radiating shielding box 17 one end is provided with cover plate 18；Handle 19 is provided with the cover plate 18.
Further, it is filled with silica gel 22 between the radiating shielding box 17 and current transformer 32.
Further, the inwall of current transformer chamber 14 is provided with magnetic masking layer.
Further, the thin resilient contact 26 is arranged on radiating shielding box 17 bottom center；The thick resilient contact 16
It is arranged on radiating shielding box 17 bottom surface both sides.
Further, the thick resilient contact 16, thin resilient contact 26 are probe；The thin resilient contact 26, thick elasticity
Insulation sleeve 21 is provided between contact 16 and radiating shielding box 17.
Further, the bottom plate lower end of housing 1 is provided with a pair of chutes 12；Three are provided between the chute 12
Bar contact groove 23；Electric shock point 24 is evenly arranged with the contact groove 23；The slide 20 is fastened in chute 12；The thick bullet
Property contact 16 and thin resilient contact 26 contacted with the corresponding point 24 that gets an electric shock.
Further, the lower end of current transformer chamber 14 is evenly arranged with heat emission hole 11.
Further, the bottom surface of housing 1 is provided with partition wall chamber 15；The thickness of partition wall chamber 15 is 5-10mm.
Further, the lower end of bucker 2 is provided with secondary water-insulating cover 4；On the bucker 2 and secondary water-insulating cover 4
It is provided with cable-through hole.
Beneficial effects of the present invention：
1st, current transformer is provided separately within a cavity at back in the present invention, and magnetic screen is provided with cavity inner wall
Layer, meanwhile, multiple current transformers are arranged in a total radiating shielding box, are integrally formed formula structure, are reached double layer screen
Effect, keep apart completely with other electronic components in ammeter, greatly reduce external magnetic field to being influenceed caused by it, ensure
The reading precision of ammeter.
2nd, the current transformer in the present invention is arranged to integral structure, and side is provided with slide, and end face is provided with cover plate,
Chute is provided with current transformer chamber simultaneously, and plug-and-pull port is offered in ammeter side, when ammeter assembling and maintenance are changed, energy
Quickly integral type current transformer is inserted installation or extracted and is changed, both improves installation and maintenance speed, and can causes
Current transformer in ammeter can quickly change use repeatedly, improve the service life of ammeter, reduce the wasting of resources.
3rd, radiating shielding box is made of high permeability material in the present invention, improves shield effectiveness, outer surface is provided with scattered
Hot groove, while meter case lower end is provided with heat emission hole, can effectively distribute heat caused by current transformer, reduces
Current transformer temperature, improve its service life.
4th, radiated in the present invention between shielding box and current transformer and be provided with silica gel, both ensure that the steady of current transformer
It is qualitative and improve degree of safety, while improve the service life of current transformer.
5th, current transformer is provided separately within a cavity of bottom surface in the present invention, and heat individually goes out from one
Mouth distributes, and when can guarantee that operation, heat caused by current transformer does not interfere with other components in ammeter, improves it
The service life of his component so that the terminal life of ammeter improves.
6th, the bucker lower end in the present invention is provided with secondary water-insulating cover, can guarantee that the rainwater of bucker bottom accumulation can not
Into inside ammeter, waterproof effect is improved.
7th, the shell ground in the present invention is provided with partition wall chamber, can guarantee that the stationarity of ammeter installation, while and can is effective
The rainwater prevented on wall enter ammeter inside.
Brief description of the drawings
Fig. 1 is traditional intelligent electric meter internal structure schematic diagram.
Fig. 2 is the internal structure schematic diagram of intelligent electric meter in the present invention.
Fig. 3 is the external structure side view of intelligent electric meter in the present invention.
Fig. 4 is the internal structure side view of intelligent electric meter in the present invention.
Fig. 5 is the reverse structure schematic of intelligent electric meter in the present invention.
Fig. 6 is the structural representation of integral type current transformer in the present invention.
Fig. 7 is the internal structure schematic diagram of integral type current transformer in the present invention.
Numeral mark shown in figure is expressed as：1st, housing, 2, bucker, 3, plug-and-pull port, 4, secondary water-insulating cover, 5, wiring opens
Close, 6, relay, 7, upper lower clapboard, 8, reading mechanism, 9, enter table electric wire, 10, go out table electric wire, 11, heat emission hole, 12, chute,
13rd, integral type current transformer, 14, current transformer chamber, 15, partition wall chamber, 16, thick resilient contact, 17, radiating shielding box, 18,
Cover plate, 19, handle, 20, slide, 21, insulation sleeve, 22, silica gel, 23, contact groove, 24, electric shock point, 25, front and rear dividing plate, 26, thin
Resilient contact, 27, conductor wire, 31, wire connector, 32, current transformer, 33, former relay, 34, former ammeter reading mechanism,
171st, radiate groove.
Embodiment
In order that those skilled in the art more fully understand technical scheme, the present invention is entered below in conjunction with the accompanying drawings
Row is described in detail, and the description of this part is only exemplary and explanatory, should not there is any limitation to protection scope of the present invention
Effect.
As shown in figs. 1-7, concrete structure of the invention is：One kind can fast load and unload anti-tampering electromagnetic current transducer intelligence
Can ammeter, it includes housing 1 and the bucker 2 that is arranged on outside it, in the housing 1 by upper lower clapboard 7 be divided into epicoele and
Cavity of resorption, cavity of resorption are divided into ante-chamber summation current transformer chamber 14 by front and rear dividing plate 25；The side of current transformer chamber 14 is set
There is plug-and-pull port 3；The upper intracavitary is provided with reading mechanism 8；Pull-switch 5 and relay 6 are provided with the ante-chamber；The electricity
Integral type current transformer 13 is provided with current transformer chamber 14；It is mutual that the leading-out terminal of the pull-switch 5 is integrally connected formula electric current
Conductor wire 27 in sensor 13；The other end of conductor wire 27 connects relay 6；The integral type current transformer 13 includes dissipating
Heat shielding box 17；Current transformer 32 is evenly arranged with the radiating shielding box 17；Two of the current transformer 32 connect
Line end is respectively connected with thin resilient contact 26；The thin resilient contact 26 connects reading mechanism 8；The conductor wire 27 is provided at both ends with
Thick resilient contact 16；The thin resilient contact 26 and thick resilient contact 16 are uniformly arranged on radiating shielding box 17 bottom surface；It is described
17 liang of sides of radiating shielding box are provided with slide 20.
Preferably, the radiating shielding box 17 is high permeability material；Radiating shielding box 17 outer surface is evenly arranged with
Radiate groove 171；Described radiating shielding box 17 one end is provided with cover plate 18；Handle 19 is provided with the cover plate 18.
Preferably, it is filled with silica gel 22 between the radiating shielding box 17 and current transformer 32.
Preferably, the inwall of current transformer chamber 14 is provided with magnetic masking layer.
Preferably, the thin resilient contact 26 is arranged on radiating shielding box 17 bottom center；The thick resilient contact 16 is set
Put in radiating shielding box 17 bottom surface both sides.
Preferably, the thick resilient contact 16, thin resilient contact 26 are probe；The thin resilient contact 26, thick elasticity are touched
Insulation sleeve 21 is provided between point 16 and radiating shielding box 17.
Preferably, the bottom plate lower end of housing 1 is provided with a pair of chutes 12；Three are provided between the chute 12
Contact groove 23；Electric shock point 24 is evenly arranged with the contact groove 23；The slide 20 is fastened in chute 12；The thick elasticity
Contact 16 and thin resilient contact 26 contact with the corresponding point 24 that gets an electric shock.
Preferably, the lower end of current transformer chamber 14 is evenly arranged with heat emission hole 11.
Preferably, the bottom surface of housing 1 is provided with partition wall chamber 15；The thickness of partition wall chamber 15 is 5-10mm.
Preferably, the lower end of bucker 2 is provided with secondary water-insulating cover 4；Set on the bucker 2 and secondary water-insulating cover 4
It is equipped with cable-through hole.
Use principle of the present invention：
Enter table electric wire 9 to be connected with pull-switch 5, go out table electric wire 10 and be connected with relay 6；The leading-out terminal of pull-switch 5 with
The electric shock point 24 of both sides connects respectively on ammeter bottom surface；Electric shock point difference among the terminals of reading mechanism 8 and ammeter bottom surface
Connection；Core center in current transformer 32 is equipped with conductor wire 27, and conductor wire is provided at both ends with thick resilient contact 16, slightly
Resilient contact 16 connects with the electric shock point 24 of both sides；The sensing electric wire both ends of current transformer 32 are connected with thin resilient contact 26,
Thin resilient contact 26 connects with the electric shock point 24 at center；The electric shock point 24 of upside connects with relay 6.User need to change integral type
During current transformer, pull-switch 5 is first closed, is then extracted by handle 19.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.
Specific case used herein is set forth to the principle and embodiment of the present invention, the explanation of above example
It is only intended to help the method and its core concept for understanding the present invention.Described above is only the preferred embodiment of the present invention, should
When pointing out due to the finiteness of literal expression, and unlimited concrete structure objectively be present, for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made, can also incited somebody to action
Above-mentioned technical characteristic is combined by rights；These improve retouching, change or combination, or the not improved structure by invention
Think and technical scheme directly applies to other occasions, be regarded as protection scope of the present invention.
Claims (10)
1. one kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, it includes housing (1) and is arranged on outside it
Bucker (2), it is characterised in that epicoele and cavity of resorption are divided into by upper lower clapboard (7) in the housing (1), cavity of resorption passes through
Front and rear dividing plate (25) is divided into ante-chamber summation current transformer chamber (14)；Current transformer chamber (14) side is provided with plug-and-pull port
(3)；The upper intracavitary is provided with reading mechanism (8)；Pull-switch (5) and relay (6) are provided with the ante-chamber；The electricity
Integral type current transformer (13) is provided with current transformer chamber (14)；The leading-out terminal of the pull-switch (5) is integrally connected formula
Conductor wire (27) in current transformer (13)；Conductor wire (27) other end connection relay (6)；The integral type electric current
Transformer (13) includes radiating shielding box (17)；Current transformer (32) is evenly arranged with the radiating shielding box (17)；Institute
Two terminals for stating current transformer (32) are respectively connected with thin resilient contact (26)；Thin resilient contact (26) the connection reading
Mechanism (8)；The conductor wire (27) is provided at both ends with thick resilient contact (16)；The thin resilient contact (26) and thick resilient contact
(16) it is uniformly arranged on radiating shielding box (17) bottom surface；Radiating shielding box (17) two side is provided with slide (20).
2. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In the radiating shielding box (17) is high permeability material；Described radiating shielding box (17) outer surface is evenly arranged with radiating groove
(171)；Described radiating shielding box (17) one end is provided with cover plate (18)；Handle (19) is provided with the cover plate (18).
3. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In described radiate is filled with silica gel (22) between shielding box (17) and current transformer (32).
4. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In current transformer chamber (14) inwall is provided with magnetic masking layer.
5. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In the thin resilient contact (26) is arranged on radiating shielding box (17) bottom center；The thick resilient contact (16) is arranged on scattered
Heat shielding box (17) bottom surface both sides.
6. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In the thick resilient contact (16), thin resilient contact (26) are probe；Thin resilient contact (26), the thick resilient contact (16)
Insulation sleeve (21) is provided between radiating shielding box (17).
7. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In housing (1) the bottom plate lower end is provided with a pair of chutes (12)；Three contact grooves are provided between the chute (12)
(23)；Electric shock point (24) is evenly arranged with the contact groove (23)；The slide (20) is fastened in chute (12)；It is described thick
Resilient contact (16) and thin resilient contact (26) contact with corresponding electric shock point (24).
8. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In current transformer chamber (14) lower end is evenly arranged with heat emission hole (11).
9. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In housing (1) bottom surface is provided with partition wall chamber (15)；Partition wall chamber (15) thickness is 5-10mm.
10. one kind as claimed in claim 1 can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter, its feature exists
In bucker (2) lower end is provided with secondary water-insulating cover (4)；It is provided with the bucker (2) and secondary water-insulating cover (4)
Cable-through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849208.5A CN105403744B (en) | 2015-11-28 | 2015-11-28 | One kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510849208.5A CN105403744B (en) | 2015-11-28 | 2015-11-28 | One kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter |
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| Publication Number | Publication Date |
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| CN105403744A CN105403744A (en) | 2016-03-16 |
| CN105403744B true CN105403744B (en) | 2018-03-13 |
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| CN201510849208.5A Active CN105403744B (en) | 2015-11-28 | 2015-11-28 | One kind can fast load and unload anti-tampering electromagnetic current transducer intelligent electric meter |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106018901B (en) * | 2016-05-16 | 2017-08-25 | 怀化建南机器厂有限公司 | A kind of intelligent electric meter with quick-replaceable high security combination current transformer |
| CN106018900B (en) * | 2016-05-16 | 2018-10-16 | 怀化建南机器厂有限公司 | A kind of novel fast-wiring formula combination intelligent ammeter |
| CN106449281B (en) * | 2016-08-31 | 2018-10-16 | 怀化建南机器厂有限公司 | Core component for completion timing power purchase |
| CN108957038A (en) * | 2018-06-27 | 2018-12-07 | 南京艾利克斯电子科技有限公司 | A kind of fast disassembly type digital electronic ammeter |
| CN109490594A (en) * | 2018-11-05 | 2019-03-19 | 河南朗博校准检测有限公司 | A kind of DC power supply power meter |
| CN113759155B (en) * | 2021-08-24 | 2024-04-30 | 安特仪表集团有限公司 | Compact structure's smart electric meter |
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| CN105403744A (en) | 2016-03-16 |
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