CN201985523U - Portable surge protection device of power supplies and signals - Google Patents
Portable surge protection device of power supplies and signals Download PDFInfo
- Publication number
- CN201985523U CN201985523U CN2011200937548U CN201120093754U CN201985523U CN 201985523 U CN201985523 U CN 201985523U CN 2011200937548 U CN2011200937548 U CN 2011200937548U CN 201120093754 U CN201120093754 U CN 201120093754U CN 201985523 U CN201985523 U CN 201985523U
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- surge
- power supply
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- lightning protection
- signal
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Abstract
The utility model provides a portable surge protection device of power supplies and signals, which is composed of a power supply lightning protection circuit and an RJ45 lightning protection circuit. The power supply lightning protection part adopts a thunder surge discharging module with large peak current to discharge thunder surge, then the lightning protection part adopts a clamping voltage stabilizing module to provide a voltage clamping stabilizing protection for the power supply, and finally the lightning protection part uses characteristics of a decoupling device to effectively restrain the thunder surge with no effect on normal work of the power supply, thereby improving discharging efficiency of the thunder surge discharging module, simultaneously lowering residual voltage and finally achieving the aim of power supply lightning protection. The RJ45 part adopts a two terminals surge protection circuit structure which can effectively discharge excess current and limit excess voltage to protect electrical equipment, and the excess voltage and the excess current are generated by surge invading along signal lines. The portable surge protection device of power supplies and signals further adopts a liquid crystal display, is simple in appearance and small and delicate for carry and meets the requirements of modern life.
Description
Technical field
The utility model relates to portable power supply and the signal surge protector that a kind of power supply and RJ45 lightning protection combine.
Background technology
Along with high-tech development, especially the popularizing of microelectronic device, thunderbolt harm is serious day by day, and the annual world is countless because of the major accident that thunderbolt damages.Even family has also become the severely afflicated area of thunderbolt now, when thunder and lightning hits or senses on the low-voltage overhead line, the high pulse voltage of its generation will damage the electric equipment that links to each other with power circuit along in the overhead wire inlet chamber, so family's installation lightning protection device is necessary.Therefore, lightning protection problem is more and more received people's attention.For avoiding household electrical appliance to suffer a loss because of thunderbolt, it is necessary that power supply is carried out lightning protection.
Along with broadband network is constantly fast-developing, broadband network has become people's necessary part of living, and increasing people has enjoyed the joy that broadband network brings, and has enriched people's life greatly.But because the broadband network transmission network spreads all over town and country, optical cable, cable line are crossed over various complex-terrains, and it is the peak season that broadband network system breaks down that thunderstorm season becomes.This annual time, a large amount of broadband network trunk equipments suffers that thunderbolt damages, the repairing difficulty is big when not only having caused national loss but also many remote places often the broadband network trunk equipment damaging, the time that therefore generally may need several weeks or some months to recovery from signal interruption, so when country suffers a loss, also had a strong impact on people's normal life, carried out lightning protection work to guaranteeing that broadband network safe and high quality, minimizing national loss and people's normal life influence are vital.
At present, also occur on the market at home making lightning protection for power supply and siganl thunder-proof device portable and being equipped with the product of liquid crystal display.
The utility model content
The utility model purpose provides the anti-thunder surge protector that a kind of portable power supply and RJ45 lightning protection combine.Its outward appearance is brief, and small and exquisite exquisiteness is convenient to carry, and can carry out the earial drainage voltage-limiting protection to surge generation overcurrent, the overvoltage of power supply and RJ45 effectively.
The technical scheme that the utility model is taked:
Form by power lightning protection circuit and RJ45 lightning protection circuit, one-level earial drainage pressure limiting circuit is adopted in the protection of power supply.The power lightning protection part adopts earlier the thunder and lightning surge of the big through-current capacity module of releasing, and its effect is that surge is released to thunder and lightning; Adopt the clamper Voltage stabilizing module then, again supply voltage is carried out the voltage clamp voltage-stabilizing protection; Utilize the characteristic of decoupler at last, surge effectively suppresses to thunder and lightning under the situation that does not influence the power supply operate as normal, thereby makes the thunder and lightning surge of the front module efficient of releasing of releasing improve the purpose that reduces residual voltage simultaneously; Finally reach purpose to the power supply lightning protection.RJ45 lightning protection part has adopted two port surge protecting circuit structures to carry out earial drainage voltage-limiting protection electric equipment safety to surge generation overcurrent, the overvoltage of invading along signal line effectively.
Circuit feature is:
The power lightning protection circuit is: two input parallel connection power supplies surge module 1, power supply electric surge module 3 back ground connection of releasing of releasing, and in line-to-line series voltage clamper module 2, through moving back even device 4 out-put supply live wire and zero lines.
The power supply electric surge built-in temperature protective tube serial connection piezo-resistance in the module 1 of releasing, and input switch, power supply electric surge is done the protection of live wire with releasing 1 pair of power supply of module, exports L through moving back even device 4 backs then.The power supply electric surge built-in temperature protective tube serial connection piezo-resistance in the module 3 of releasing, power supply electric surge is done the protection of zero line with releasing 3 pairs of power supplys of module, exports N through moving back even device 5 backs then.Built-in temperature protective tube serial connection piezo-resistance in the voltage clamp module 2, voltage clamp module 2 is done the clamper voltage-stabilizing protection in line-to-line.
The RJ45 lightning protection circuit is: d, e, g, the signal thunder and lightning in parallel respectively surge of the h road module 7 of releasing is done protection over the ground, and a, b and c, online respectively the signal clamper module 6 in parallel in f road are done between line and protected.
Characteristics of the present utility model and advantage:
Characteristics according to civil power and RJ45 are isolated power supply and signal, carry out specific aim protection design more respectively, adopted simultaneously and prevented that internal electric source from disturbing the shield technology of RJ45 signal, this has guaranteed communication quality in surge that has improved the surge device greatly and lightning protection ability, the more perfect and safety and reliability of performance.The utility model has not only been filled up the effectively blank of protection of domestic portable domestic thunder and lightning.And the adding liquid crystal display, its outward appearance is brief, and small and exquisite exquisiteness is convenient to carry, and more apparent noble quality in simple and practical meets the requirement of modern's life.
Description of drawings
Fig. 1 is a power lightning protection schematic diagram of the present utility model.
Fig. 2 is the RJ45 lightning protection schematic diagram of utility model.
Embodiment
Power lightning protection principle of the present utility model as shown in Figure 1; the A end is the input of lightning protection device power supply protected circuit; when occurring the thunder and lightning surge on the power circuit; the thunder and lightning surge was released into ground by the power supply electric surge module 1,3 of releasing before this; carry out the voltage clamp voltage-stabilizing protection by voltage clamp module 2; thereby make the thunder and lightning surge of the front module efficient of releasing of releasing improve the purpose reduce residual voltage simultaneously by moving back even device 4,5 then, guarantee fully release power supply in the back output normal range (NR) of lightning current.
RJ45 lightning protection principle of the present utility model as shown in Figure 2, when occurring the thunder and lightning surge on the RJ45 signal line, release by the thunder and lightning surge module 7 of releasing respectively in d, the e of RJ45, g, h road, the clamper protection between holding wire is done on a, the b of RJ45 and c, f road.
After rush of current and voltge surge test, determine:
1, determine: the thunder and lightning surge module 1,3 of releasing adopts the components and parts of piezo-resistances as the thunder and lightning surge of mainly releasing, the civil power output voltage peak value of its turn-on voltage 〉=1.5 times, and maximum discharge current (8/20 μ s waveform) arrives 20kA for 10kA; The resistance value of embedded with safety≤0.2 Ω, 2.2 times of the current value of the signal of the rated current of Temperature protection 〉=protected equipment.
2, determine: voltage clamp module 2 adopts piezo-resistances as main voltage clamp components and parts, the civil power output voltage peak value of its turn-on voltage 〉=1.5 times, and maximum discharge current (8/20 μ s waveform) arrives 20kA for 10kA; The output power of power supply peak value of the power of voltage clamp module 2 〉=150 times.
3, determine: the magnetic flux 〉=100uH that moves back even device 4,5; , move back 2.2 times of current value of the rated current 〉=protected equipment of even device 4,5.
4, determine: the release discharge tube intermittent current ability 10A of module 7 of signal thunder and lightning surge.
5, the thunder and lightning surge built-in temperature insurance through-current capacity 〉=1.5 times rated current of module 1,3 and voltage clamp module 2 of releasing, temperature is irrecoverable property off-state when being higher than 125 ℃.
Claims (6)
1. portable power supply and signal surge protector are made up of power lightning protection circuit and RJ45 lightning protection circuit, it is characterized in that:
The power lightning protection circuit is: two input parallel connection power supplies surge module (1), power supply electric surge module (3) back ground connection of releasing of releasing, in line-to-line series voltage clamper module (2), through moving back even device (4) out-put supply live wire and zero line;
The RJ45 lightning protection circuit is: d, e, g, the signal thunder and lightning in parallel respectively surge of the h road module (7) of releasing is done protection over the ground, and a, b and c, f road online signal clamper module in parallel (6) are respectively done between line and protected.
2. power supply according to claim 1 and signal surge protector is characterized in that: power supply electric surge release built-in temperature protective tube serial connection piezo-resistance in the module (1) and input switch; The power supply electric surge built-in temperature protective tube serial connection piezo-resistance in module (3) and the voltage clamp module (2) of releasing.
3. power supply according to claim 2 and signal surge protector is characterized in that: the civil power output voltage peak value of the turn-on voltage of piezo-resistance 〉=1.5 times, maximum discharge current is that 10kA is to 20kA.
4. power supply according to claim 2 and signal surge protector is characterized in that: the resistance value of built-in temperature protective tube≤0.2 Ω, 2.2 times of the current value of the signal of the rated current of temperature safety tube 〉=protected equipment.
5. power supply according to claim 1 and signal surge protector is characterized in that: move back even device (4), move back the magnetic flux 〉=100uH of even device (5); 2.2 times of the current value of rated current 〉=protected equipment.
6. power supply according to claim 1 and signal surge protector is characterized in that: the release intermittent current ability 〉=10A of gas discharge tube of module (7) of signal thunder and lightning surge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200937548U CN201985523U (en) | 2011-04-01 | 2011-04-01 | Portable surge protection device of power supplies and signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200937548U CN201985523U (en) | 2011-04-01 | 2011-04-01 | Portable surge protection device of power supplies and signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985523U true CN201985523U (en) | 2011-09-21 |
Family
ID=44612975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200937548U Expired - Fee Related CN201985523U (en) | 2011-04-01 | 2011-04-01 | Portable surge protection device of power supplies and signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904237A (en) * | 2012-10-23 | 2013-01-30 | 四川省电力公司内江电业局 | Surge protecting box |
-
2011
- 2011-04-01 CN CN2011200937548U patent/CN201985523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904237A (en) * | 2012-10-23 | 2013-01-30 | 四川省电力公司内江电业局 | Surge protecting box |
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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: 20110921 Termination date: 20180401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |