CN207352047U - Low interference electricity getting device with shielding - Google Patents
Low interference electricity getting device with shielding Download PDFInfo
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- CN207352047U CN207352047U CN201721494316.6U CN201721494316U CN207352047U CN 207352047 U CN207352047 U CN 207352047U CN 201721494316 U CN201721494316 U CN 201721494316U CN 207352047 U CN207352047 U CN 207352047U
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- electric transducer
- shielding
- electricity getting
- getting device
- primary coil
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Abstract
The utility model provides the low interference electricity getting device with shielding, including electricity getting device, what the electricity getting device included two semi-circular shape being bonded with each other first takes electric transducer, described first takes electric transducer to be encapsulated in inside metal shielding, and the metal shielding and first takes and is equipped with low magnetic permeability material filler between electric transducer.Metal shielding conductance is much larger than air permeability, leakage field magnetic flux will be conducted along metal shielding, most of leakage field can form vortex on metal shielding and finally disappear, so as to avoid because taking electric transducer leakage field to trigger circuit signal acquisition sensor and influence to its measurement accuracy.
Description
Technical field
It the utility model is related to electricity getting device technical field, the more particularly to low interference electricity getting device with shielding.
Background technology
With the high speed development of national economy, all trades and professions are also stepped up the demand of electric power, the stabilization of electric system
Property and security be particularly important, to high voltage overhead line carry out on-line real time monitoring it is essential.At this stage, it is most of
On-Line Monitor Device is directly mounted at transmission line of electricity scene, and equipment power supply is supplied with battery-powered, solar energy energy supply, coupling energy taking
Etc. mode, wherein coupling energy taking mode be by transmission line of electricity around alternating magnetic field produce sensing electric current as monitoring device power supply
Mode, power supply reliability is higher.To make simple installation, coupling power taking device generally using double semicircle retractable structures, takes electricity
Sensor is made of two semicircles.When this structure causes the power supply unit to be installed on circuit, two semicircles are taken between ferroelectric core
There are gap, and when line current changes greatly, leakage field phenomenon occurs in gap location, and magnetic field can be by way of radiation around
Propagate, which, which is easily accessible in Rogowski coil formula signal acquisition sensor, forms interference, so as to cause monitoring device
Frequent false triggering, greatly affected the monitoring effect of equipment.
The content of the invention
Mirror is with this, and the utility model proposes the low interference electricity getting device with shielding, the shielded layer in outside eliminates leakage field to letter
The interference of number collection sensor.
What the technical solution of the utility model was realized in：Low interference electricity getting device with shielding, including electricity getting device,
What the electricity getting device included two semi-circular shape being bonded with each other first takes electric transducer, and described first takes electric transducer to encapsulate
Inside metal shielding, the metal shielding and first takes and is equipped with low magnetic permeability material filler between electric transducer.
Further, the metal shielding is metal shielding made of permalloy material.
Further, the electricity getting device further includes second and takes electric transducer, iron core and buzzer, and the iron core is equipped with
First primary coil, the second primary coil and secondary coil, first primary coil takes electric transducer to be connected with first, described
Second primary coil takes electric transducer to be connected with second, and first primary coil is on iron core with the second primary coil in iron core
Upper to produce the magnetic field that intensity is identical and direction is opposite, the secondary coil is connected with buzzer.
Further, the first rectifier, the second rectifier, the first diode and the second diode are further included, described first
Rectifier input takes electric transducer to be connected with first, the cathode of first rectifier output end and the cathode of the first diode
Connection, second rectifier input takes electric transducer to be connected with second, the cathode of second rectifier output end and the
The cathode connection of two diodes, the anode of first diode are connected with the anode of second diode, and described first is whole
The anode of stream device output terminal is connected with the anode of second rectifier output end.
Further, the coil turn of first primary coil is identical with the coil turn of second primary coil.
Compared with prior art, the beneficial effects of the utility model are：Metal shielding conductance is much larger than air permeability,
Leakage field magnetic flux will be conducted along metal shielding, and most of leakage field can form vortex on metal shielding and finally disappear, from
And avoid because taking electric transducer leakage field triggering circuit signal acquisition sensor and influence to its measurement accuracy.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model embodiment 1；
Fig. 2 is the principle schematic of the utility model embodiment 2；
Fig. 3 is the principle schematic of the utility model embodiment 3；
In figure, 1 transmission pressure, 2 electricity getting devices, 3 first take electric transducer, 4 metal shieldings, 5 gaps, 6 low magnetic permeabilities
Material filler, 7 second take electric transducer, 8 iron cores, 9 first primary coils, 10 second primary coils, 11 secondary coils, and 12
One rectifier, 13 second rectifiers, 14 first diodes, 15 second diodes, 16 buzzers.
Embodiment
In order to be best understood from the utility model technology contents, specific embodiment is provided below, and with reference to attached drawing to this practicality
It is new to be described further.
Embodiment 1
Referring to Fig. 1, the low interference electricity getting device of band shielding provided by the utility model, including electricity getting device 2, it is described to take electricity
What device 2 included two semi-circular shape being bonded with each other first takes electric transducer 3, and described first takes electric transducer 3 to be encapsulated in gold
Belong to inside shielding case 4, the metal shielding 4 and first takes and is equipped with low magnetic permeability material filler 6 between electric transducer 3.
Easy for installation to make, electricity getting device 2 takes electric transducer 3 to form using the first of two independent semi-circular shape, and two
It is absolute construction that the first of a independent semi-circular shape, which takes electric transducer 3, mutually detachable.3 covering of electric transducer is taken first
The metal shielding 4 of a high magnetic permeability is filled, when 1 curent change of transmission pressure is larger, first takes electric transducer 3 that generation is shaken
Dynamic phenomenon, the first of two halves circular ring shape takes the composition surface of electric transducer 3 due to that there are gap 5, can produce leakage field.First takes fax
Sensor 3 is encapsulated in inside metal shielding 4, and since 4 magnetic conductivity of metal shielding is much larger than air permeability, leakage field magnetic flux is by edge
Metal shielding 4 to conduct, most of leakage field can be formed on 4 shell of metal shielding vortex and finally disappear so that avoid because
First takes 3 leakage field of electric transducer triggering circuit signal acquisition sensor and the influence to its measurement accuracy.First takes fax sense
Low magnetic permeability material filler 6 is used between device 3 and metal shielding 4, low magnetic permeability material filler 6 is rubber, can be effective
Isolating metal shielding case 4 and first takes electric transducer 3, while takes electric transducer 3 to play certain protective role to first.
Specifically, the metal shielding 4 is metal shielding 4 made of permalloy material.Magnetic conductivity is high, shielding effect
Fruit is good.
Embodiment 2
Referring to Fig. 2, difference lies in the electricity getting device 2 further includes second and takes electric transducer the present embodiment with embodiment 1
7th, iron core 8 and buzzer 16, the iron core 8 are equipped with the first primary coil 9, the second primary coil 10 and secondary coil 11, institute
State the first primary coil 9 takes electric transducer 3 to be connected with first, and second primary coil 10 takes electric transducer 7 to be connected with second,
It is identical that the magnetic direction that first primary coil 9 produces on iron core 8 produces on iron core 8 intensity with the second primary coil 10
And the magnetic field that direction is opposite, the secondary coil 11 are connected with buzzer 16.
Electric transducer 3 and second is taken to take electric transducer 7 to be installed on same transmission pressure 1 by first, first takes fax sense
Device 3 and second takes electric transducer 7 to produce identical sensing electric current.First takes electric transducer 3 and second to take electric transducer 7 right at the same time
Outer power supply, powered stable.First takes electric transducer 3 to power to the first primary coil 9, and second takes electric transducer 7 primary to second
Coil 10 is powered, and takes electric transducer 3 and second to take electric transducer 7 to produce identical sensing electric current due to first, according to right hand spiral shell
Rule is revolved, takes 3 and second primary coil 10 of electric transducer to wind incorgruous power supply in the same direction by first, or incorgruous winding supplies in the same direction
Electricity, first primary coil 9 is produced on iron core 8 with the second primary coil 10 on iron core 8, intensity is identical and direction phase
Anti- magnetic field, two magnetic fields are cancelled out each other, therefore secondary coil 11 will not produce sensing electric current.When one of them takes electric inductor
During failure, such as leakage field becomes larger the field weakening or disappear that the primary coil that either short circuit etc. correspondingly connects produces
Lose, cause the magnetic field intensity that the first primary coil 9 and the second primary coil 10 produce different, it is impossible to cancel out each other, secondary wire
Sensing electric current is produced on circle 11.Secondary coil 11 is powered to buzzer 16, the bee when induced voltage that secondary coil 11 produces is smaller
Ring device 16 will not send alarm, and when the voltage that secondary coil 11 produces reaches buzzer operating voltage, alarm occurs for buzzer,
Prompting staff is overhauled.Take electric transducer failure bigger, the sound that buzzer is sent is bigger, can according to sound size into
Row failure judgement degree.
Specifically, the coil turn of first primary coil 9 is identical with the coil turn of second primary coil 10.
Electric transducer 3 and second is taken to take electric transducer 7 to be readily available two magnetic cancelled out each other in the case of normal work first
.
Embodiment 3
Referring to Fig. 3, the present embodiment and embodiment 2 difference lies in, further include the first rectifier 12, the second rectifier 13,
First diode 14 and the second diode 15,12 input terminal of the first rectifier take electric transducer 3 to be connected with first, and described
The cathode of one rectifier, 12 output terminal is connected with the cathode of the first diode 14, and 13 input terminal of the second rectifier takes with second
Electric transducer 7 connects, and the cathode of 13 output terminal of the second rectifier is connected with the cathode of the second diode 15, and the described 1st
The anode of pole pipe 14 is connected with the anode of second diode 15, the anode of 12 output terminal of the first rectifier and described
The anode connection of two rectifiers, 13 output terminal.The alternating current that electricity getting device 2 is sent is changed into direct current using rectifier, in rectification
The output terminal of device is outwards exporting electricity after connecting diode, and first takes electric transducer 3 and second to take electric transducer 7 in parallel right
Outer output, without mutually power supply.Since first takes electric transducer 3 and second to take electric transducer 7 to connect same load, it is sequentially generated
Pressure drop it is identical, two magnetic field errors for taking electric transducer to be produced on iron core can be reduced.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (5)
1. the low interference electricity getting device with shielding, it is characterised in that：Including electricity getting device, the electricity getting device includes two mutually
The first of the semi-circular shape of engagement takes electric transducer, and described first takes electric transducer to be encapsulated in inside metal shielding, the gold
Belong to shielding case and first to take and be equipped with low magnetic permeability material filler between electric transducer.
2. the low interference electricity getting device as claimed in claim 1 with shielding, it is characterised in that：The metal shielding is perm
Metal shielding made of alloy material.
3. the low interference electricity getting device as claimed in claim 1 with shielding, it is characterised in that：The electricity getting device further includes
Two take electric transducer, iron core and buzzer, and the iron core is equipped with the first primary coil, the second primary coil and secondary coil,
First primary coil takes electric transducer to be connected with first, and second primary coil takes electric transducer to be connected with second, institute
State the first primary coil and produce the magnetic field that intensity is identical and direction is opposite on iron core with the second primary coil on iron core, it is described
Secondary coil is connected with buzzer.
4. the low interference electricity getting device as claimed in claim 3 with shielding, it is characterised in that：Further include the first rectifier,
Two rectifiers, the first diode and the second diode, first rectifier input takes electric transducer to be connected with first, described
The cathode of first rectifier output end is connected with the cathode of the first diode, and second rectifier input and second takes fax
Sensor connects, and the cathode of second rectifier output end is connected with the cathode of the second diode, and first diode is born
Pole is connected with the anode of second diode, the anode of first rectifier output end and second rectifier output end
Anode connection.
5. the low interference electricity getting device as claimed in claim 3 with shielding, it is characterised in that：The line of first primary coil
It is identical with the coil turn of second primary coil to enclose the number of turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721494316.6U CN207352047U (en) | 2017-11-10 | 2017-11-10 | Low interference electricity getting device with shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721494316.6U CN207352047U (en) | 2017-11-10 | 2017-11-10 | Low interference electricity getting device with shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352047U true CN207352047U (en) | 2018-05-11 |
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ID=62354548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721494316.6U Active CN207352047U (en) | 2017-11-10 | 2017-11-10 | Low interference electricity getting device with shielding |
Country Status (1)
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| CN (1) | CN207352047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829611A (en) * | 2019-11-14 | 2020-02-21 | 云南电网有限责任公司电力科学研究院 | Tunnel inspection robot power supply device based on induction electricity taking technology |
-
2017
- 2017-11-10 CN CN201721494316.6U patent/CN207352047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829611A (en) * | 2019-11-14 | 2020-02-21 | 云南电网有限责任公司电力科学研究院 | Tunnel inspection robot power supply device based on induction electricity taking technology |
| CN110829611B (en) * | 2019-11-14 | 2023-09-15 | 云南电网有限责任公司电力科学研究院 | Tunnel inspection robot power supply device based on induction power taking technology |
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