CN202085163U - Low voltage power line carrier wave resistance isolator - Google Patents
Low voltage power line carrier wave resistance isolator Download PDFInfo
- Publication number
- CN202085163U CN202085163U CN2011201851493U CN201120185149U CN202085163U CN 202085163 U CN202085163 U CN 202085163U CN 2011201851493 U CN2011201851493 U CN 2011201851493U CN 201120185149 U CN201120185149 U CN 201120185149U CN 202085163 U CN202085163 U CN 202085163U
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- Prior art keywords
- power line
- voltage power
- low voltage
- isolator
- circuit
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Abstract
The utility model relates to a filtering device for isolating low voltage power line carrier wave information, in particular to a low voltage power line carrier wave resistance isolator belonging to the technical field of equipment line communication. The isolator comprises a shell and a circuit board arranged in the shell, the circuit board is provided with a wave resistance circuit consisting of a group of circuit units, the output end of the wave resistance circuit is connected with a low voltage power line, the circuit unit comprises two multiple circuits connected in the power line in series, the input ends of the two multiple circuits are connected with a resistor in parallel, and the output ends of the multiple circuits are connected with the resistor in parallel. The isolator has the beneficial effects that high power wave resistance can be realized in limited volume and range, the signal attenuation of the signal of all interference frequency ranges is thorough, the carrier communication distance of the power line is longer, the property is more stable, the time for debugging and investigation is reduced when in work, and the work efficiency is improved.
Description
Technical field
The utility model relates to a kind of filter that the low-voltage power line carrier information is isolated, and especially a kind of low voltage power line carrier wave arrestment isolator belongs to the device line communication technique field.
Background technology
Utilize low-voltage power line carrier transmission data message to be widely applied to the field of checking meter of municipal systems in recent years, not only can save lot of manpower and material resources, in time failure conditions such as the loss of analysis power transmission line and electric leakage have huge economic benefit.But power circuit is a public network, and the various power consumption equipments on it can produce multiple high order harmonic component and disturb, and have co-channel interference between the various carrier equipment, have had a strong impact on the transmission of carrier wave, cause the carrier communication instability, and success rate is low.
The utility model content
The purpose of this utility model is: the shortcoming at above-mentioned prior art exists proposes a kind of wave arrestment excellent in efficiency, the low voltage power line carrier wave arrestment isolator of function admirable.
In order to reach above purpose, low voltage power line carrier wave arrestment isolator of the present utility model, comprise housing and be arranged on the interior wiring board of housing, its improvements are, the choke circuit that is made of the set of circuits unit is set on the described wiring board, and the output of described choke circuit connects low-voltage power line, and described circuit unit comprises two shunt circuits that are serially connected in the power line, at the input of described two shunt circuits and connect electric capacity, at the output of described two shunt circuits and connect electric capacity.
It is that described shunt circuit is made of inductance and electric capacity parallel connection that the utility model further improves.
The beneficial effects of the utility model are: low voltage power line carrier wave arrestment isolator of the present utility model not only can be realized powerful wave arrestment in limited volume range, and it is more thorough for the decay of each interference band signal, make that the distance of power circuit carrier communication is farther, performance is more stable, debugging and investigation time have been improved operating efficiency when having reduced work.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the circuit diagram of an embodiment of the utility model.
Fig. 2 is the circuit diagram of circuit unit among embodiment of the utility model.
Embodiment
Embodiment one
The low voltage power line carrier wave arrestment isolator of present embodiment, comprise housing and be arranged on the interior wiring board of housing, the choke circuit (see figure 1) that is made of the set of circuits unit is set on the wiring board, the output of choke circuit connects low-voltage power line, as shown in Figure 2, wherein circuit unit comprises two shunt circuits that are serially connected in the power line, and the shunt circuit is made of inductance L and capacitor C parallel connection, at the input of two shunt circuits and connect capacitor C, at the output of two shunt circuits and connect capacitor C.
During practical application, the isolator of present embodiment adopts elliptic function type band stop filter, and the exponent number of filter can be regulated by the number of increase and decrease circuit unit according to actual needs, and its bandwidth of rejection is 58～500KHZ, can in the frequency range of 120～270K, reach-decay of 50db.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (2)
1. low voltage power line carrier wave arrestment isolator, comprise housing and be arranged on the interior wiring board of housing, it is characterized in that: the choke circuit that is made of the set of circuits unit is set on the described wiring board, the output of described choke circuit connects low-voltage power line, described circuit unit comprises two shunt circuits that are serially connected in the power line, at the input of described two shunt circuits and connect electric capacity, at the output of described two shunt circuits and connect electric capacity.
2. low voltage power line carrier wave arrestment isolator according to claim 1 is characterized in that: described shunt circuit is made of inductance and electric capacity parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201851493U CN202085163U (en) | 2011-06-02 | 2011-06-02 | Low voltage power line carrier wave resistance isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201851493U CN202085163U (en) | 2011-06-02 | 2011-06-02 | Low voltage power line carrier wave resistance isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202085163U true CN202085163U (en) | 2011-12-21 |
Family
ID=45345778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201851493U Expired - Fee Related CN202085163U (en) | 2011-06-02 | 2011-06-02 | Low voltage power line carrier wave resistance isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202085163U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104704A (en) * | 2017-06-12 | 2017-08-29 | 杭州快越科技有限公司 | A kind of electric power network element |
| CN107100613A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | High-power underground rig carrier wave remote monitoring system |
| CN109714079A (en) * | 2019-03-07 | 2019-05-03 | 上海希形科技有限公司 | Power line carrier communication anti-jamming circuit |
-
2011
- 2011-06-02 CN CN2011201851493U patent/CN202085163U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100613A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | High-power underground rig carrier wave remote monitoring system |
| CN107104704A (en) * | 2017-06-12 | 2017-08-29 | 杭州快越科技有限公司 | A kind of electric power network element |
| CN109714079A (en) * | 2019-03-07 | 2019-05-03 | 上海希形科技有限公司 | Power line carrier communication anti-jamming circuit |
| CN109714079B (en) * | 2019-03-07 | 2024-01-30 | 上海希形科技有限公司 | Anti-interference circuit for power line carrier communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20180602 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |