CN109217275A - High voltage bearing anti-thunder surge suppression circuit, device and power supply adaptor - Google Patents
High voltage bearing anti-thunder surge suppression circuit, device and power supply adaptor Download PDFInfo
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- CN109217275A CN109217275A CN201810959450.1A CN201810959450A CN109217275A CN 109217275 A CN109217275 A CN 109217275A CN 201810959450 A CN201810959450 A CN 201810959450A CN 109217275 A CN109217275 A CN 109217275A
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- 230000001629 suppression Effects 0.000 title claims abstract description 35
- 230000005611 electricity Effects 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims description 5
- 230000001012 protector Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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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
- H02H9/043—Protection of over-voltage protection device by short-circuiting
-
- 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
- H02H9/044—Physical layout, materials not provided for elsewhere
-
- 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
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention is suitable for surge protector technical field, provides a kind of high voltage bearing anti-thunder surge suppression circuit, device and power supply adaptor, comprising: varistor, discharge tube, high-voltage capacitance, inductance and resistance；Line is started to exchange fire in described varistor one end or zero curve, the other end are grounded through the discharge tube, and the high-voltage capacitance is connected in parallel on the both ends of the varistor, and the both ends of the discharge tube are connected in parallel on after the inductance and resistance series connection.The present invention can use under conditions of the 1500VAC of resistance to pressure request, and the surge current that can release in the case where surge-crest voltage is 1600V, residual voltage are lower than 1.3KV；It can also be used under conditions of the 3000VAC of resistance to pressure request, and the surge current that can release in the case where surge-crest voltage is 3600V, residual voltage are lower than 3KV；It is used under conditions of the 1500VAC of resistance to pressure request or 3000VAC, electric current, which is lower than 5mA and does not occur to dodge, to be collapsed；And meet basic insulating requirements, under conditions of 500VAC, equivalent resistance is greater than 10M ohm.
Description
Technical field
The invention belongs to surge protector technical field more particularly to a kind of high voltage bearing anti-thunder surge suppression circuits, device
Part and power supply adaptor.
Background technique
The reason of causing surge (ringing pulse) generally includes thunder and lightning, imperfect earth, inductive load switching, municipal power failure row
It removes and static discharge (ESD) etc., result is likely to result in loss of data (or damage) even equipment damage, wherein with thunder and lightning
Caused by surge destructiveness it is most strong.
Existing Lightning Protection uses higfh-tension ceramics gas-discharge tube usually in the power supply adaptor of electrical equipment,
For example, using the ceramic gas discharge tube for having 2500V or more dc breakdown voltage under conditions of the 1500VAC of resistance to pressure request,
Its discharge voltage is 3000V, is the surge of 2121V to 3000V for voltage, and discharge tube is failure to actuate, and can not play the role of lightning protection,
It is that 2121V surge below is firmly anti-by equipment for voltage；Under conditions of the 3000VAC of resistance to pressure request using have 5000V with
The ceramic gas discharge tube of upper dc breakdown voltage, discharge voltage 5500V, the electricity for being 4300V to 5500V for voltage
It gushes, discharge tube is failure to actuate, and can not be played the role of lightning protection, is that 4300V surge below is firmly anti-by equipment for voltage.As it can be seen that existing
Some anti-thunder surge suppression devices can not play surge inhibiting effect in certain surge voltage sections, to cause electrical equipment
It is badly damaged, and the residual voltage of discharge tube is higher, lightning protection effect is undesirable.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of high voltage bearing anti-thunder surge suppression circuit, device and power supplys to fit
Orchestration can not play surge inhibiting effect to solve existing anti-thunder surge suppression device in certain surge voltage sections, thus
Cause electrical equipment badly damaged, and the residual voltage of discharge tube is higher, the undesirable problem of lightning protection effect.
The first aspect of the embodiment of the present invention provides a kind of high voltage bearing anti-thunder surge suppression circuit comprising pressure-sensitive electricity
Resistance, discharge tube, high-voltage capacitance, inductance and resistance；
Line is started to exchange fire in described varistor one end or zero curve, the other end are grounded through the discharge tube, and the high-voltage capacitance is in parallel
At the both ends of the varistor, the both ends of the discharge tube are connected in parallel on after the inductance and resistance series connection；
When the firewire or the zero curve generate surge, the equivalent resistance at the varistor both ends is strongly reduced, described
The equivalent resistance at discharge tube both ends increased dramatically, and the voltage at the discharge tube both ends increased dramatically and reach putting for the discharge tube
Piezoelectric voltage, the discharge tube conducting, surge voltage are applied to the varistor after subtracting the arc voltage after the discharge tube conducting
Both ends, varistor conducting.
In one embodiment, the calculation formula of the equivalent resistance at the varistor both ends are as follows:
Rm=1/ (2 π FC)；
Wherein, RmFor the equivalent resistance at the varistor both ends, F is that the power frequency that the firewire or the zero curve access is handed over
The frequency or surge frequency of galvanic electricity, C are the sum of capacitance and varistor interelectrode capacity amount of the high-voltage capacitance.
In one embodiment, the calculation formula of the resistance value of the discharge tube are as follows:
Rg=2 π FL+R；
Wherein, RgFor the equivalent resistance at the discharge tube both ends, F is the industrial frequency AC that the firewire or the zero curve access
The frequency or surge frequency of electricity, L are the inductance of the inductance, and R is the resistance value of the resistance.
In one embodiment, the frequency of the surge is greater than or equal to 10KHZ.
In one embodiment, starting voltage >=1A*R of the varistorm/1000；
Wherein, RmFor the equivalent resistance at the varistor both ends.
In one embodiment, the discharge tube dc breakdown voltage >=1A*Rg/1000；
Wherein, RgFor the equivalent resistance at the discharge tube both ends.
In one embodiment, pressure voltage >=(R of the anti-thunder surge suppression circuitm+Rg)*1A/1000；
Wherein, RmFor the equivalent resistance at the varistor both ends, RgFor the equivalent resistance at the discharge tube both ends.
The second aspect of the embodiment of the present invention provides a kind of high voltage bearing anti-thunder surge suppression device comprising above-mentioned
Anti-thunder surge suppression circuit.
The third aspect of the embodiment of the present invention provides a kind of power supply adaptor comprising above-mentioned anti-thunder surge inhibits electricity
Road or above-mentioned anti-thunder surge suppression device.
The embodiment of the present invention is by providing a kind of resistance to height including varistor, discharge tube, high-voltage capacitance, inductance and resistance
The anti-thunder surge suppression circuit of pressure, makes that line is started to exchange fire in varistor one end or zero curve, the other end are grounded through discharge tube, and high-voltage capacitance is simultaneously
The both ends of varistor are associated in, the both ends of discharge tube are connected in parallel on after inductance and resistance series connection, it can be the 1500VAC's of resistance to pressure request
Under the conditions of use, and can release surge current in the case where surge-crest voltage is 1600V, residual voltage is lower than 1.3KV；Also
Can be used under conditions of the 3000VAC of resistance to pressure request, and can surge-crest voltage be 3600V in the case where vent discharge
Electric current is gushed, residual voltage is lower than 3KV；It is used under conditions of the 1500VAC of resistance to pressure request or 3000VAC, electric current is lower than 5mA and does not occur
Sudden strain of a muscle is collapsed；And meet basic insulating requirements, under conditions of 500VAC, equivalent resistance is greater than 10M ohm.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of high voltage bearing anti-thunder surge suppression circuit provided in an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention are explicitly described, it is clear that described embodiment is the present invention one
The embodiment divided, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, should fall within the scope of the present invention.
Description and claims of this specification and term " includes " and their any deformations in above-mentioned attached drawing, meaning
Figure, which is to cover, non-exclusive includes.Such as process, method or system comprising a series of steps or units, product or equipment do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include the other step or units intrinsic for these process, methods, product or equipment.
As shown in Figure 1, the present embodiment provides a kind of high voltage bearing anti-thunder surge suppression circuits comprising varistor MOV,
Discharge tube GDT, high-voltage capacitance CAP, inductance INDUCTOR and resistance RES.
Varistor MOV starts to exchange fire one end line L or zero curve N, the other end through discharge tube GDT ground connection PE, high-voltage capacitance CAP parallel connection
At the both ends of varistor MOV, the both ends of discharge tube GDT are connected in parallel on after inductance INDUCTOR and resistance RES series connection.
The working principle of anti-thunder surge suppression circuit provided by the present embodiment are as follows:
When firewire L or zero curve N generates surge, the resistance value at the both ends varistor MOV is strongly reduced, the both ends discharge tube GDT
Resistance value increased dramatically, and the voltage at the both ends discharge tube GDT increased dramatically and reach the discharge voltage of discharge tube GDT, and discharge tube GDT is led
Logical, surge voltage subtracts the both ends that varistor MOV is applied to after the arc voltage after discharge tube GDT conducting, and varistor MOV is led
It is logical.
In a particular application, since the resistance value of varistor is related with the voltage swing that its both ends applies, discharge tube both ends
Voltage when exceeding it and protecting specification value, inside will appear short circuit phenomenon, and sponge the mistake high pressure of input, therefore, can be with
Circuit according to figure 1 combines the actual varistor for needing that nominal value is selected to meet resistance to pressure request and protection specification value
Meet the discharge tube of resistance to pressure request.
In the present embodiment, the calculation formula of the equivalent resistance at the varistor both ends are as follows:
Rm=1/ (2 π FC)；
Wherein, RmFor the equivalent resistance at the varistor both ends, F is that the power frequency that the firewire or the zero curve access is handed over
The frequency or surge frequency of galvanic electricity, C are the sum of capacitance and varistor interelectrode capacity amount of the high-voltage capacitance.
In the present embodiment, the calculation formula of the resistance value of the discharge tube are as follows:
Rg=2 π FL+R；
Wherein, RgFor the resistance value of the discharge tube, F is the frequency for the industrial-frequency alternating current that the firewire or the zero curve access
Rate, L are the inductance of the inductance.
In the present embodiment, starting voltage >=1A*R of the varistorm/1000；
Wherein, RmFor the equivalent resistance at the varistor both ends.
In the present embodiment, the discharge tube dc breakdown voltage >=1A*Rg/1000；
Wherein, RgFor the equivalent resistance at the discharge tube both ends.
In the present embodiment, pressure voltage >=(R of the anti-thunder surge suppression circuitm+Rg)*1A/1000；
Wherein, RmFor the resistance value of the varistor, RgFor the resistance value of the discharge tube.
In a particular application, under normal circumstances, F is frequency=50HZ of industrial-frequency alternating current, in the firewire or described zero
When line generates surge, F >=10000HZ.By the resistance value of above-mentioned varistor and the computing the resistor value formula of discharge tube it is found that pressure-sensitive
The equivalent resistance size at resistance both ends is inversely proportional with frequency F size, the equivalent resistance size at discharge tube both ends and frequency F size at
Direct ratio, when generating surge on firewire or zero curve, the frequency of industrial frequency AC electric line sports 10000HZ or more by 50HZ, leads
The resistance value at varistor both ends is caused sharply to reduce 10000HZ/50HZ=200 times or more, similarly, the inductance L at discharge tube both ends etc.
Effect resistance value sharply increases nearly 200 times, and the voltage at discharge tube both ends sharply rises violently, and reaches the discharge voltage of discharge tube, and discharge tube is led
Logical, after conducting, the arc voltage of discharge tube is 10V or so, and the voltage on entire route is approximate at this time is all applied to varistor
Both ends, varistor is connected, surge-crest voltage be 1600VDC when, surge current of releasing, residual voltage be lower than 1.3KV；Electricity
Gush crest voltage be 3600VDC when, surge current of releasing, residual voltage be lower than 3KV, have both pressure resistance and lightning protection effect.
One embodiment of the present of invention also provides a kind of high voltage bearing anti-thunder surge suppression device comprising above-mentioned lightning protection
Surge suppression circuit.
In a particular application, anti-thunder surge suppression device can be applied to various electronic equipments, instrument and meter, connection
Road provides security protection for various electronic equipments, instrument and meter, communication line.
One embodiment of the present of invention also provides a kind of power supply adaptor comprising above-mentioned anti-thunder surge suppression circuit or
Above-mentioned anti-thunder surge suppression device.
In a particular application, power supply adaptor can be the power supply adaptor of any electronic equipment for needing to power, for example,
Desktop PC, notebook, palm PC and cloud server etc. calculate equipment, the furniture and appliances such as television set, refrigerator, air-conditioning
Equipment etc..
The present embodiment is a kind of including the high voltage bearing of varistor, discharge tube, high-voltage capacitance, inductance and resistance by providing
Anti-thunder surge suppression circuit, makes that line is started to exchange fire in varistor one end or zero curve, the other end are grounded through discharge tube, and high-voltage capacitance is connected in parallel on
The both ends of discharge tube are connected in parallel on after the both ends of varistor, inductance and resistance series connection, it can be in the condition for the 1500VAC of resistance to pressure request
Lower use, and the surge current that can release in the case where surge-crest voltage is 1600V, residual voltage are lower than 1.3KV；It can be with
It is used under conditions of the 3000VAC of resistance to pressure request, and the surge electricity that can release in the case where surge-crest voltage is 3600V
Stream, residual voltage are lower than 3KV；It is used under conditions of the 1500VAC of resistance to pressure request or 3000VAC, electric current is lower than 5mA and does not dodge
It collapses；And meet basic insulating requirements, under conditions of 500VAC, resistance is greater than 10M ohm.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (9)
1. a kind of high voltage bearing anti-thunder surge suppression circuit, which is characterized in that including varistor, discharge tube, high-voltage capacitance, electricity
Sense and resistance；
Line is started to exchange fire in described varistor one end or zero curve, the other end are grounded through the discharge tube, and the high-voltage capacitance is connected in parallel on institute
The both ends of varistor are stated, the both ends of the discharge tube are connected in parallel on after the inductance and resistance series connection；
When the firewire or the zero curve generate surge, the equivalent resistance at the varistor both ends is strongly reduced, the electric discharge
The equivalent resistance at pipe both ends increased dramatically, and the voltage at the discharge tube both ends increased dramatically and reach the electric discharge electricity of the discharge tube
Pressure, the discharge tube conducting, surge voltage are applied to the two of the varistor after subtracting the arc voltage after the discharge tube conducting
End, the varistor conducting.
2. high voltage bearing anti-thunder surge suppression circuit as described in claim 1, which is characterized in that the varistor both ends
Equivalent resistance Rm=1/ (2 π FC)；
Wherein, RmFor the equivalent resistance at the varistor both ends, F is the industrial-frequency alternating current that the firewire or the zero curve access
Frequency or frequency for surge, C be the sum of capacitance and varistor interelectrode capacity amount of the high-voltage capacitance.
3. high voltage bearing anti-thunder surge suppression circuit as described in claim 1, which is characterized in that the discharge tube both ends etc.
Imitate resistance value Rg=2 π FL+R；
Wherein, RgFor the equivalent resistance at the discharge tube both ends, F is the industrial-frequency alternating current that the firewire or the zero curve access
Frequency or frequency for surge, L are the inductance of the inductance, and R is the resistance value of the resistance.
4. high voltage bearing anti-thunder surge suppression circuit as claimed in claim 2 or claim 3, which is characterized in that the firewire is described
When zero curve generates surge, frequency F >=10KHZ of surge, power-frequency voltage frequency is F=50HZ.
5. the high voltage bearing anti-thunder surge suppression circuit as described in claims 1 to 3, which is characterized in that the varistor exists
Starting voltage >=1A*R under the conditions of power-frequency voltage frequency F=50HZm/1000；
Wherein, RmFor the equivalent resistance at the varistor both ends.
6. the high voltage bearing anti-thunder surge suppression circuit as described in claims 1 to 3, which is characterized in that the discharge tube is in work
Dc breakdown voltage >=1A*R under the conditions of frequency electric voltage frequency F=50HZg/1000；
Wherein, RgFor the equivalent resistance at the discharge tube both ends.
7. the high voltage bearing anti-thunder surge suppression circuit as described in claims 1 to 3, which is characterized in that the anti-thunder surge suppression
The pressure voltage of circuit processed >=(Rm+Rg)*1A/1000；
Wherein, RmFor the equivalent resistance at the varistor both ends, RgFor the equivalent resistance at the discharge tube both ends.
8. a kind of high voltage bearing anti-thunder surge suppression device, which is characterized in that described in any item anti-including claim 1~7
Thunder Surge suppression circuit.
9. a kind of power supply adaptor, which is characterized in that including the described in any item anti-thunder surge suppression circuits of claim 1~7
Or anti-thunder surge suppression device according to any one of claims 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959450.1A CN109217275B (en) | 2018-08-22 | 2018-08-22 | High-voltage-resistant lightning-protection surge suppression circuit, device and power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959450.1A CN109217275B (en) | 2018-08-22 | 2018-08-22 | High-voltage-resistant lightning-protection surge suppression circuit, device and power adapter |
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| Publication Number | Publication Date |
|---|---|
| CN109217275A true CN109217275A (en) | 2019-01-15 |
| CN109217275B CN109217275B (en) | 2024-08-13 |
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| CN201810959450.1A Active CN109217275B (en) | 2018-08-22 | 2018-08-22 | High-voltage-resistant lightning-protection surge suppression circuit, device and power adapter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112332395A (en) * | 2020-10-22 | 2021-02-05 | 马鞍山市槟城电子有限公司 | Discharge circuit, surge protection circuit, ignition circuit, and electronic device |
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| Publication number | Publication date |
|---|---|
| CN109217275B (en) | 2024-08-13 |
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