CN106786445A - Lightning protection module of power source and system - Google Patents
Lightning protection module of power source and system Download PDFInfo
- Publication number
- CN106786445A CN106786445A CN201510811161.3A CN201510811161A CN106786445A CN 106786445 A CN106786445 A CN 106786445A CN 201510811161 A CN201510811161 A CN 201510811161A CN 106786445 A CN106786445 A CN 106786445A
- Authority
- CN
- China
- Prior art keywords
- lightning protection
- protection circuit
- module
- power module
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
Abstract
The present invention provides a kind of lightning protection module of power source and system, wherein, lightning protection module of power source includes：First order lightning protection circuit and second level lightning protection circuit；The input of the first order lightning protection circuit is connected with transmission line of electricity, and the output end of the first order lightning protection circuit is connected with the input of the second level lightning protection circuit, and the input of the second level lightning protection circuit is connected with power module；The output voltage of the first order lightning protection circuit bears voltage more than the maximum of the power module, and the output voltage of the second level lightning protection circuit bears voltage less than the maximum of the power module.The lightning protection module of power source that the present invention is provided, is depressured twice by setting two-stage lightning protection circuit so that the voltage for being input to power module bears voltage less than the maximum of power module, so as to protect power module not influenceed by surge voltage.
Description
Technical field
The present invention relates to power lightning protection technical field, more particularly to a kind of lightning protection module of power source and system.
Background technology
The transmission line of electricity that train is set up by railway line overhead in the process of running obtains electric current, and electric current is in height
During being transmitted on pressure transmission line, because thunderbolt produces the probability of surge voltage very high, the wave
Voltage is gushed, refers to equipment and the circuit very high wink produced within the time of Microsecond grade when being struck by lightning
State overvoltage.Although surge voltage reaches the control list of train by can gradually decay after transformer station
Still the high pressure of several kilovolts is there may be when first, the power module inside train control unit can be produced
Serious infringement.
In the prior art, in order to reduce infringement of the lightning surge voltage to power module on train, generally
Power lightning protection circuit is set in the front end of power module, power lightning protection circuit generally uses a piezo-resistance reality
It is existing, voltage clamping is carried out by piezo-resistance, unnecessary electric current is absorbed so as to protect train power supply power supply mould
Block.
But, the special 110 volts of power supply modules of train possess bears 250 volts in 10 milliseconds
Ability, and the piezo-resistance for using at present, due to the limitation of its motional voltage, clamp voltage is typically larger than 250
Volt, cannot only realize for surge voltage dropping to less than 250 volts by a piezo-resistance, cause row
Car power supply module can still be damaged by lightning surge voltage.
The content of the invention
The present invention provides a kind of lightning protection module of power source and system, can cause to be input to the voltage of power module
Maximum less than power module bears voltage, protects power module not influenceed by surge voltage.
The lightning protection module of power source that the present invention is provided, including：First order lightning protection circuit and second level lightning protection circuit；
The input of the first order lightning protection circuit is connected with transmission line of electricity, the first order lightning protection circuit
Output end is connected with the input of the second level lightning protection circuit, the input of the second level lightning protection circuit
It is connected with power module；
The output voltage of the first order lightning protection circuit bears voltage more than the maximum of the power module, institute
The output voltage for stating second level lightning protection circuit bears voltage less than the maximum of the power module.
The power lightning protection system that the present invention is provided, including：The power lightning protection that power module and the present invention are provided
Module；
The lightning protection module of power source is connected with the power module.
The present invention provides a kind of lightning protection module of power source and system, and lightning protection module of power source includes：First order lightning protection
Circuit and second level lightning protection circuit, wherein, the input of first order lightning protection circuit is connected with transmission line of electricity,
The output end of first order lightning protection circuit is connected with the input of second level lightning protection circuit, second level lightning protection circuit
Input be connected with power module, the maximum of the output voltage of first order lightning protection circuit more than power module
Voltage is born, the output voltage of second level lightning protection circuit bears voltage less than the maximum of power module.This hair
The lightning protection module of power source of bright offer, by setting two-stage lightning protection circuit, is depressured twice so that input
Voltage to power module bears voltage less than the maximum of power module, so as to protect power module not receive
The influence of surge voltage.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality
The accompanying drawing to be used needed for example or description of the prior art is applied to be briefly described, it should be apparent that, under
Accompanying drawing in the description of face is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the lightning protection module of power source that the embodiment of the present invention one is provided；
Fig. 2 is the structural representation of the lightning protection module of power source that the embodiment of the present invention two is provided；
Fig. 3 is the structural representation of the power lightning protection system that the embodiment of the present invention one is provided.
Description of reference numerals：
11：First order lightning protection circuit； 13：Second level lightning protection circuit；
21：Piezo-resistance； 23：Common mode inductance；
25：Transient Suppression Diode； 31：Power module；
33：Lightning protection device for electric power； 231：First pin；
232：Second pin； 233：3rd pin；
234：4th pin.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with this hair
Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
Fig. 1 is the structural representation of the lightning protection module of power source that the embodiment of the present invention one is provided.As shown in figure 1,
The lightning protection module of power source that the present embodiment is provided, can include：First order lightning protection circuit 11 and second level lightning protection
Circuit 13.
Wherein, the input of first order lightning protection circuit 11 is connected with transmission line of electricity, first order lightning protection circuit
11 output end is connected with the input of second level lightning protection circuit 13, the input of second level lightning protection circuit 13
End is connected with power module.
The output voltage of first order lightning protection circuit 11 bears voltage more than the maximum of power module, and the second level is prevented
The output voltage on thunder and lightning road 13 bears voltage less than the maximum of power module.
In the present embodiment, two-stage lightning protection circuit is set in the front end of power module, by first order lightning protection
Then circuit 11 continues to drop first by a lightning surge voltage reduction part by second level lightning protection circuit 13
Low lightning surge voltage, it is final to cause that the voltage for being input to power module bears less than the maximum of power module
Voltage, so as to protect power module not influenceed by surge voltage, extends the use longevity of power module
Life, also improves the stability of train control unit.Being additionally, since need not be by lightning surge electricity
The disposable maximum for being reduced to power module of pressure is born below voltage, so reducing to first order thunder-lightning
Road 11 and the requirement of second level lightning protection circuit 13 so that first order lightning protection circuit 11 and second level thunder-lightning
Road 13 is easily achieved.
Wherein, the present embodiment is for first order lightning protection circuit 11 and the specific reality of second level lightning protection circuit 13
Existing mode is not limited, as long as realizing buck functionality.
A kind of lightning protection module of power source is present embodiments provided, including：First order lightning protection circuit and the second level are anti-
Thunder and lightning road, wherein, the input of first order lightning protection circuit is connected with transmission line of electricity, first order lightning protection circuit
Output end be connected with the input of second level lightning protection circuit, the input and power supply of second level lightning protection circuit
Module is connected, and the output voltage of first order lightning protection circuit bears voltage, second more than the maximum of power module
The output voltage of level lightning protection circuit bears voltage less than the maximum of power module.The power supply that the present embodiment is provided
Lightning-protection module, by setting two-stage lightning protection circuit, is depressured so that be input to power module twice
Voltage bears voltage less than the maximum of power module, so as to protect power module not by the shadow of surge voltage
Ring.
Fig. 2 is the structural representation of the lightning protection module of power source that the embodiment of the present invention two is provided, and the present embodiment exists
On the basis of embodiment one, there is provided a kind of specific implementation of lightning protection module of power source.As shown in Fig. 2
The lightning protection module of power source that the present embodiment is provided, can include：First order lightning protection circuit and second level thunder-lightning
Road.
Wherein, first order lightning protection circuit is piezo-resistance 21.
The two ends of piezo-resistance 21 are connected on the live wire and zero line of transmission line of electricity, and and the second level
The input connection of lightning protection circuit.
The clamp voltage of piezo-resistance 21 bears voltage more than the maximum of power module.
Wherein, second level lightning protection circuit includes：Common mode inductance 23 and Transient Suppression Diode 25.
First pin 231 and second pin 232 of common mode inductance 23 are defeated with first order lightning protection circuit respectively
Go out end connection, the 3rd pin 233 of common mode inductance 23 is connected with the positive pole of Transient Suppression Diode 25,
4th pin 234 of common mode inductance 23 is connected with the negative pole of Transient Suppression Diode 25.
The positive pole of Transient Suppression Diode 25 is connected with the positive pole of power module, Transient Suppression Diode 25
Negative pole be connected with the negative pole of power module.
The clamp voltage of Transient Suppression Diode 25 bears voltage less than the maximum of power module.
In the present embodiment, first order lightning protection circuit is piezo-resistance 21, and second level lightning protection circuit is included altogether
Mould inductance 23 and Transient Suppression Diode 25, by piezo-resistance 21 first by lightning surge voltage reduction by
Part, then continues to reduce lightning surge voltage by Transient Suppression Diode 25, final to cause to be input to
The voltage of power module bears voltage less than the maximum of power module, so as to protect power module not by wave
Gush the influence of voltage.Wherein, the effect for setting common mode inductance 23 is to Transient Suppression Diode 25
Actuation time plays delayed-action, so that it is guaranteed that Transient Suppression Diode 25 is in the step-down of piezo-resistance 21
Secondary step-down is just carried out afterwards, protects Transient Suppression Diode 25.
It should be noted that the present embodiment suppresses two for piezo-resistance 21, common mode inductance 23 and transient state
The specific type selecting of pole pipe 25 is not any limitation as.
Optionally, the model of piezo-resistance 21 can be 181KD20J or S20K115.
Optionally, the specification of common mode inductance 23 can be 1 milihenry.
Optionally, the model of Transient Suppression Diode 25 can for 1.5KE170CA, 6SMB170CA,
SMCJ170CA or 1N6301A.
A kind of lightning protection module of power source is present embodiments provided, including：First order lightning protection circuit and the second level are anti-
Thunder and lightning road, wherein, first order lightning protection circuit is piezo-resistance, and second level lightning protection circuit includes common mode inductance
And Transient Suppression Diode.The lightning protection module of power source that the present embodiment is provided, sets two-stage lightning protection circuit, leads to
Cross piezo-resistance to be depressured twice respectively with Transient Suppression Diode so that be input to power module
Voltage bears voltage less than the maximum of power module, so as to protect power module not by the shadow of surge voltage
Ring.
Fig. 3 is the structural representation of the power lightning protection system that the embodiment of the present invention one is provided.As shown in figure 3,
The power lightning protection system that the present embodiment is provided, can include：Power module 31 and as shown in Fig. 1~Fig. 2
The lightning protection module of power source 33 that embodiment is provided.
Wherein, lightning protection module of power source 33 is connected with power module 31.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than right
Its limitation；Although being described in detail to the present invention with reference to foregoing embodiments, this area it is common
Technical staff should be understood：It can still modify to the technical scheme described in foregoing embodiments,
Or equivalent is carried out to which part or all technical characteristic；And these modifications or replacement, and
The scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution is not made.
Claims (6)
1. a kind of lightning protection module of power source, it is characterised in that including：First order lightning protection circuit and the second level are anti-
Thunder and lightning road；
The input of the first order lightning protection circuit is connected with transmission line of electricity, the first order lightning protection circuit
Output end is connected with the input of the second level lightning protection circuit, the input of the second level lightning protection circuit
It is connected with power module；
The output voltage of the first order lightning protection circuit bears voltage more than the maximum of the power module, institute
The output voltage for stating second level lightning protection circuit bears voltage less than the maximum of the power module.
2. lightning protection module of power source according to claim 1, it is characterised in that the first order lightning protection
Circuit is piezo-resistance；
The two ends of the piezo-resistance are connected on the live wire and zero line of the transmission line of electricity, and with
The input connection of the second level lightning protection circuit；
The clamp voltage of the piezo-resistance bears voltage more than the maximum of the power module.
3. lightning protection module of power source according to claim 2, it is characterised in that the piezo-resistance
Model 181KD20J or S20K115.
4. lightning protection module of power source according to claim 1, it is characterised in that the second level lightning protection
Circuit includes：Common mode inductance and Transient Suppression Diode；
First pin and second pin of the common mode inductance respectively with the output of the first order lightning protection circuit
End connection, the 3rd pin of the common mode inductance is connected with the positive pole of the Transient Suppression Diode, described
4th pin of common mode inductance is connected with the negative pole of the Transient Suppression Diode；
The positive pole of the Transient Suppression Diode is connected with the positive pole of the power module, and the transient state suppresses
The negative pole of diode is connected with the negative pole of the power module；
The clamp voltage of the Transient Suppression Diode bears voltage less than the maximum of the power module.
5. lightning protection module of power source according to claim 4, it is characterised in that the common mode inductance
Specification is 1 milihenry；Model 1.5KE170CA, 6SMB170CA of the Transient Suppression Diode,
SMCJ170CA or 1N6301A.
6. a kind of power lightning protection system, it is characterised in that including：Power module and such as claim 1-4
Any described lightning protection module of power source；
The lightning protection module of power source is connected with the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811161.3A CN106786445A (en) | 2015-11-20 | 2015-11-20 | Lightning protection module of power source and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811161.3A CN106786445A (en) | 2015-11-20 | 2015-11-20 | Lightning protection module of power source and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106786445A true CN106786445A (en) | 2017-05-31 |
Family
ID=58885573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510811161.3A Pending CN106786445A (en) | 2015-11-20 | 2015-11-20 | Lightning protection module of power source and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106786445A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817749U (en) * | 2012-09-24 | 2013-03-20 | 长沙飞波通信技术有限公司 | Grounding-free single-phase power supply lightning protection module |
| CN202917967U (en) * | 2012-07-26 | 2013-05-01 | 京信通信技术(广州)有限公司 | Lightning protection device of direct-current power supply |
| CN203456869U (en) * | 2013-08-09 | 2014-02-26 | 惠州市可立克科技有限公司 | Single-pole PFC lightning protection circuit |
| CN104882870A (en) * | 2015-03-03 | 2015-09-02 | 华为技术有限公司 | Lightning protection circuit |
-
2015
- 2015-11-20 CN CN201510811161.3A patent/CN106786445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917967U (en) * | 2012-07-26 | 2013-05-01 | 京信通信技术(广州)有限公司 | Lightning protection device of direct-current power supply |
| CN202817749U (en) * | 2012-09-24 | 2013-03-20 | 长沙飞波通信技术有限公司 | Grounding-free single-phase power supply lightning protection module |
| CN203456869U (en) * | 2013-08-09 | 2014-02-26 | 惠州市可立克科技有限公司 | Single-pole PFC lightning protection circuit |
| CN104882870A (en) * | 2015-03-03 | 2015-09-02 | 华为技术有限公司 | Lightning protection circuit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |