CN207442843U - A kind of power line carrier noise suppressed filter - Google Patents
A kind of power line carrier noise suppressed filter Download PDFInfo
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- CN207442843U CN207442843U CN201721645650.7U CN201721645650U CN207442843U CN 207442843 U CN207442843 U CN 207442843U CN 201721645650 U CN201721645650 U CN 201721645650U CN 207442843 U CN207442843 U CN 207442843U
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- 239000003990 capacitor Substances 0.000 claims abstract description 23
- 239000011324 bead Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model is related to a kind of power line carrier noise suppressed filters, belong to electric filtering equipment technical field.It is made of capacitor, inductor, user's power lead, magnet ring, its main feature is that：Power grid is connected with the input terminal of user's connecting valve with electric network source conducting wire, power grid with the output terminal of user's connecting valve is in parallel between zero curve and phase line is connected to capacitor, the phase line end series connection of power grid and user's connecting valve output terminal has inductor, inductor is connected by user's power lead with the phase line of user power utilization equipment, and the zero curve of user power utilization equipment is connected with capacitor；The inductor is made of user's power lead, magnet ring.Magnet ring internal diameter hard-pressed bale lives user's power lead, and magnet ring is tightly sleeved on user's power lead and forms inductor one by one.It is small to carrier noise strong inhibition capability, it is light-weight, it is simple in structure, it is easy to install, it is of low cost.It is big to solve existing inductor volume, of high cost, the problem of installing and using inconvenience.
Description
Technical field
The utility model is related to a kind of power line carrier noise suppressed filters, belong to electric filtering equipment technical field.
Background technology
In power information acquisition system, to the acquisition of resident's low pressure electricity consumption user information generally by low-voltage power line
Carrier communication mode is completed, and since electrical equipment is numerous and jumbled, various in low voltage power distribution network, some electrical equipments will be to power line
Carrier communication generates interference, it is therefore necessary to install filter circuit additional and be handled.The LC low pass filtereds being made up of at present capacitor and inductor
Wave circuit, although strengthening filter effect, the load current of distribution line is very big so that matched inductance volume
Greatly, of high cost, it is also inconvenient to install and use.Therefore a simple in structure, easy to install, the inhibition to carrier noise is researched and developed
Strong, the compact of property, it is light-weight, low-cost power line carrier noise suppressed filter be very it is necessary to.
The content of the invention
The purpose of this utility model is that in view of the above shortcomings of the prior art, provide a kind of inhibition to carrier noise
Property strong, compact, light-weight, simple in structure, easy to install, low-cost power line carrier noise suppressed filtering dress
It puts.
The utility model is to realize above-mentioned purpose by the following technical solutions：
The power line carrier noise suppressed filter is made of capacitor, inductor, user's power lead, magnet ring,
It is characterized in that：Power grid is connected with the input terminal of user's connecting valve with electric network source conducting wire, and power grid is defeated with user's connecting valve
Outlet is connected in parallel to capacitor between zero curve and phase line, and power grid is connected company with the phase line end of the output terminal of user's connecting valve
Inductor is connected to, inductor is connected by user's power lead with the phase line of user power utilization equipment, the zero curve of user power utilization equipment
It is connected with capacitor；The inductor is made of user's power lead, magnet ring.
The magnet ring is outer diameter 8mm, internal diameter 4mm, the ferrite bead of high 4mm, and magnet ring internal diameter hard-pressed bale lives user's power supply
Conducting wire, magnet ring are tightly sleeved on user's power lead one by one, and the magnet ring at head and the tail both ends is made up of glue sealing
Inductor.
The magnet ring is equipped at least 20.
The inductor being made of user's power lead, magnet ring and capacitor equivalent are a LC low-pass filter.
The advantageous effect of the utility model compared with prior art is：
The power line carrier noise suppressed filter passes through capacitor, user's power lead, the equivalent composition one of magnet ring
LC low-pass filters, side by side hard-pressed bale user power lead is set with 20 magnet rings, and leakage field is minimum, and user power utilization equipment generates
Interference make an uproar ripple by above-mentioned equivalent LC low-pass filters will make an uproar in ripple with carrier frequency similar in higher frequency block, effectively keep away
Exempt from user power utilization equipment to make an uproar interference of the ripple to carrier network.The power line carrier noise suppressed filter overall volume is small
Ingeniously, light-weight, simple in structure, purchase material, easy to install and use is of low cost.After installation, meter reading success rate is by original
94% reaches 100%.It is big to solve existing inductor volume, of high cost, the problem of installing and using inconvenience.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of power line carrier noise suppressed filter；
Fig. 2 is the main structure diagram of inductor LI；
Fig. 3 is the overlooking the structure diagram of inductor LI；
Fig. 4 is the schematic equivalent circuit of the LC low-pass filters of inductor LI and capacitor C1 compositions.
In figure：1st, power grid and user's connecting valve, 2, electric network source conducting wire, 3, user's power lead, 30, user's power supply
Wire insulation crust, 31, user's power lead conductor, 4, magnet ring, 5, user power utilization equipment, 6, glue, C1, capacitor, L1, electricity
Sensor.
Specific embodiment
The embodiment of the utility model is described in further detail below in conjunction with the accompanying drawings：
The power line carrier noise suppressed filter is by capacitor C1, inductor L1, user's power lead 3,4 structure of magnet ring
Into power grid is connected with the input terminal of user's connecting valve 1 with electric network source conducting wire 2, the output terminal of power grid and user's connecting valve 1
It is connected in parallel to capacitor C1 between zero curve and phase line, power grid is connected company with the phase line end of the output terminal of user's connecting valve 1
Inductor L1 is connected to, inductor L1 is connected by user's power lead 3 with the phase line of user power utilization equipment 5, user power utilization equipment 5
Zero curve be connected with capacitor C1；The inductor L1 is made of user's power lead 3, magnet ring 4.
The magnet ring 4 is outer diameter 8mm, internal diameter 4mm, the ferrite bead 4 of high 4mm, and 4 internal diameter hard-pressed bale of magnet ring lives user's electricity
Source conducting wire 3, magnet ring 4 are tightly sleeved on user's power lead 3 one by one, and the magnet ring 4 at head and the tail both ends is solid by glue 6
Envelope forms inductor L1.
The magnet ring 4 is equipped at least 20.
The inductor L1 being made of user's power lead 3, magnet ring 4 and capacitor C1 is equivalent to a LC low pass filtered
Ripple device（Referring to Fig. 1~4）.
Power information acquisition system carrier network is by concentrator and power meter group into being equipped with Yi Taiji on a transformer
Middle device is equipped with carrier module and is communicated between concentrator and electric energy meter, gather electric energy meter data by concentrator, may be employed
The scheme of different carrier wave producers, at present the carrier frequency of common carrier schemes in 132KHz between 455KHz, the utility model
A kind of carrier frequency of power line carrier noise suppressed filter is 270KHz.
Present utility model application people Hubei Province's Tianmen City power supply field work for many years, local power transformer platform
The electric energy meter of area user has 158, and the scheme of different carrier wave producers may be employed, and the carrier frequency of common carrier schemes exists at present
Between 132KHZ~455KHZ, the utility model example is 270KHZ.In real work, because of carrier frequency noise interference, the success of meter reading
Rate at most can only achieve 94%.Carrier-in-interference electrical equipment from the user, without especially needing and allow to be that cannot be introduced into during meter reading
In user family, therefore present utility model application people is according to actual conditions, using magnet ring is good to High-frequency Interference inhibition, purchase
At least 20 magnet rings 4 are sleeved on user's power lead 3 and form inductance by many advantages, such as cheap, easy to install
Device L1 forms LC low-pass filters, mounted on power grid and user's connecting valve 1 with capacitor C1（Distribution network is connected with user
Place）, that is, the outlet one side of electric energy meter, power frequency 50Hz is allowed to pass through cutoff frequency 100KHz.
The capacity of capacitor C1 is 0.22uF, and capacitor C1 is installed in parallel in electric network source conducting wire 2（That is carrier network）
With user junction, 3 sets of user's power lead penetrates multiple magnet rings 4 and forms an inductor L1, the inductance value of inductor L1 by
The size and number of magnet ring 4 determines that present utility model application people determines by test of many times：By 20 outer diameter 8mm, internal diameter 4mm,
Hard-pressed bale is connected out the ferrite bead 4 of high 4mm on user's power lead 3, and close to power grid with user one by one
1 one side installation is closed, it is best to inhibit noise interference effect.This inductor L1 and capacitor C1 forms one（Referring to Fig. 4）It is equivalent
For the filter circuit of LC low-pass filters, the interference that user power utilization equipment 3 generates makes an uproar ripple after the LC low-pass filters, makes to make an uproar
In ripple with carrier frequency similar in higher frequency be blocked, filter out.The power line carrier noise suppressed filter is being had jurisdiction over
The outlet one side of 158 electric energy meters in area（That is distribution network and user junction）It is widely used, effectively prevents user
Interference of the ripple to carrier network of making an uproar of electrical equipment 5, meter reading success rate reaches 100% after installation.
The above is the preferred embodiment of the utility model, and the example above illustrates not to the reality of the utility model
Matter content makees limitation in any form, and person of an ordinary skill in the technical field is after this specification has been read according to this reality
It any simple modification or deformation made with new technical spirit to more than specific embodiment and is taken off possibly also with above-mentioned
The technology contents shown are changed or are modified to the equivalent embodiment of equivalent variations, still fall within technical solutions of the utility model
In the range of, without departing from the spirit and scope of the utility model.
Claims (4)
1. a kind of power line carrier noise suppressed filter, it is by capacitor（C1）, inductor（L1）, user's power lead
（3）, magnet ring（4）It forms, it is characterised in that：Power grid and user's connecting valve（1）Input terminal and electric network source conducting wire（2）Even
It connects, power grid and user's connecting valve（1）Output terminal capacitor is connected in parallel between zero curve and phase line（C1）, power grid is with using
Family connecting valve（1）The phase line end of output terminal be connected in series with inductor（L1）, inductor（L1）Pass through user's power lead
（3）With user power utilization equipment（5）Phase line connection, user power utilization equipment（5）Zero curve and capacitor（C1）Connection；The electricity
Sensor（L1）By user's power lead（3）, magnet ring（4）Composition.
2. a kind of power line carrier noise suppressed filter according to claim 1, it is characterised in that：The magnet ring
（4）For outer diameter 8mm, internal diameter 4mm, high 4mm ferrite bead（4）, magnet ring（4）Internal diameter hard-pressed bale lives user's power lead（3）, magnetic
Ring（4）User's power lead is tightly sleeved on one by one（3）On, the magnet ring at head and the tail both ends（4）Pass through glue（6）Gu
Envelope forms inductor（L1）.
3. a kind of power line carrier noise suppressed filter according to claim 1, it is characterised in that：The magnet ring
（4）It is equipped at least 20.
4. a kind of power line carrier noise suppressed filter according to claim 1, it is characterised in that：It is described by with
Family power lead（3）, magnet ring（4）The inductor of composition（L1）With capacitor（C1）It is equivalent to a LC low-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645650.7U CN207442843U (en) | 2017-12-01 | 2017-12-01 | A kind of power line carrier noise suppressed filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645650.7U CN207442843U (en) | 2017-12-01 | 2017-12-01 | A kind of power line carrier noise suppressed filter |
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| Publication Number | Publication Date |
|---|---|
| CN207442843U true CN207442843U (en) | 2018-06-01 |
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ID=62285428
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721645650.7U Active CN207442843U (en) | 2017-12-01 | 2017-12-01 | A kind of power line carrier noise suppressed filter |
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| CN (1) | CN207442843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787689A (en) * | 2021-01-27 | 2021-05-11 | 广东电网有限责任公司 | Power line carrier same-frequency noise blocker and power system |
| CN113890565A (en) * | 2021-09-29 | 2022-01-04 | 贵州电网有限责任公司 | Anti-interference device based on low-voltage power line carrier |
-
2017
- 2017-12-01 CN CN201721645650.7U patent/CN207442843U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787689A (en) * | 2021-01-27 | 2021-05-11 | 广东电网有限责任公司 | Power line carrier same-frequency noise blocker and power system |
| CN113890565A (en) * | 2021-09-29 | 2022-01-04 | 贵州电网有限责任公司 | Anti-interference device based on low-voltage power line carrier |
| CN113890565B (en) * | 2021-09-29 | 2023-09-15 | 贵州电网有限责任公司 | Anti-interference device based on low-voltage power carrier |
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