CN206117149U - Surge protection circuit and have surge protection ware of this surge protection circuit - Google Patents
Surge protection circuit and have surge protection ware of this surge protection circuit Download PDFInfo
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- CN206117149U CN206117149U CN201621125504.7U CN201621125504U CN206117149U CN 206117149 U CN206117149 U CN 206117149U CN 201621125504 U CN201621125504 U CN 201621125504U CN 206117149 U CN206117149 U CN 206117149U
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- surge protection
- piezo
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Abstract
The utility model provides a surge protection circuit and have surge protection ware of this surge protection circuit, the surge protection circuit includes: the zero line input, firewire input port, the zero line output, the live wire output, the earthing terminal, first order protected location, second level protected location and connect the delay element between first order protected location and second level protected location, wherein: first order protected location includes: a piezo -resistor, the 2nd piezo -resistor, the 3rd piezo -resistor, a gas discharge tube and the 2nd gas discharge tube, second level protected location includes fourth piezo -resistor, and fourth piezo -resistor's one end is connected on the live wire output, and the other end is connected on the zero line output, delay element is including connecting at the first inductance between firewire input port and the live wire output and connecting the second inductance between zero line input and zero line output. The utility model discloses can reduce output voltage to below the 1.5KV effectively in with the surge protector miniaturization.
Description
Technical field
The utility model is related to technical field of electronic equipment, more particularly to lightning arrester field, specially a kind of surge
Protection circuit and the Surge Protector with the surge protection circuit.
Background technology
Surge is also surging, as the term suggests just it is above the transient overvoltage of normal working voltage.Essentially, surge is
There is a kind of violent pulse within only hundreds of time a ten thousandth second, have the reason for surge may be caused：It is jumbo, short
Road, power supply switching or big-block engine.And the product containing surge insulation device can effectively absorb the huge energy of burst,
To protect connection equipment to avoid being damaged.
Surge Protector (surge protector), also known as lightning protection device, abbreviation SPD, is that one kind is various electronic equipments, instrument instrument
Table, communication line provide the electronic installation of security protection, it is adaptable to exchange 50/60HZ, the power supply of rated voltage 220V to 380V
In system, the surge to instantaneous overvoltage caused by indirect thunder and lightning, direct thunder and lightning or other reasonses is protected.When electric loop or
Because when extraneous interference produces suddenly peak current or voltage, Surge Protector can be in the extremely short time in person's communication line
Interior conducting shunting, so as to avoid infringement of the surge to other equipment in loop.In 220V exchanges drive LED, traditional SPD is
Parallel access, thunderbolt residual voltage is 1500V or so, and without capacitance-resistance buck functionality.
At present Surge Protector volume is larger, complex structure, in can not being suitable for some compact apparatus.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model be provide a kind of surge protection circuit and
Surge Protector with the surge protection circuit, for solving prior art in Surge Protector volume it is larger, complex structure,
The problem that can not be suitable in some compact apparatus.
For achieving the above object and other related purposes, the utility model provides a kind of surge protection circuit, the surge
Protection circuit includes：Zero line input, live wire input, zero line output end, fire wire output end, earth terminal, for input electricity
Pressure carries out the first order protection location of first order earial drainage, for carrying out second level earial drainage to the residual voltage after first order earial drainage
So that output voltage meets the second level protection location and be connected to the first order protection location and described that output requires
It is used to delay the delay unit of the second level protection location working time between second class protection unit, wherein：The first order
Protection location includes：First piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance, first gas discharge tube and second gas
Discharge tube；Wherein, one end of first piezo-resistance is connected to the live wire input, the other end and the 3rd pressure-sensitive electricity
One end of resistance is connected with one end of the second gas discharge tube；One end of second piezo-resistance connects the live wire input
End, the other end is connected with one end of the first gas discharge tube；One end of 3rd piezo-resistance is input into the zero line
The other end of end and the first gas discharge tube is connected, and the other end of the 3rd piezo-resistance discharges with the second gas
One end of pipe is connected；The other end of the second gas discharge tube is connected with the earth terminal；The second level protection location bag
The 4th piezo-resistance is included, one end of the 4th piezo-resistance is connected between live wire input and fire wire output end, the other end
It is connected between zero line input and zero line output end；The delay unit includes：It is connected to live wire input and live wire output
The first inductance between end and the second inductance being connected between zero line input and zero line output end, the one of first inductance
End is also connected with one end of first piezo-resistance, and the other end is also connected with one end of the 4th piezo-resistance, and described the
One end of two inductance is also connected with the other end of the one or three piezo-resistance and the other end of the first gas discharge tube, institute
The other end for stating the second inductance is also connected with the other end of the 4th piezo-resistance.
In an embodiment of the present utility model, the surge protection circuit also includes being connected on the live wire input
The first Thermal Cutoffs.
In an embodiment of the present utility model, the surge protection circuit also includes being connected on the zero line input
Second temperature fuse.
In an embodiment of the present utility model, the surge protection circuit also includes being connected to first inductance and institute
State the 3rd fuse between fire wire output end.
In an embodiment of the present utility model, the surge protection circuit is also connected to the live wire output including one end
On end, the other end is connected to the fault indication unit on zero line output end.
In an embodiment of the present utility model, the fault indication unit includes a reverse diode and in parallel
Individual LED light.
In an embodiment of the present utility model, the surge protection circuit also includes being connected to the fault indication unit
And the resistance-capacitance depressurization unit between the zero line output end.
In an embodiment of the present utility model, the resistance-capacitance depressurization unit includes the electric capacity and resistance of series connection.
In an embodiment of the present utility model, first inductance and second inductance are all differential mode inductance.
For achieving the above object, the utility model also provides a kind of Surge Protector, and the Surge Protector is included as above
Described surge protection circuit.
As described above, a kind of surge protection circuit of the present utility model and the surge protection with the surge protection circuit
Device, has the advantages that：
1st, surge protection circuit is pressure-sensitive by the second piezo-resistance in first order protection location and the 3rd in the utility model
It is made up of two inductance between first gas discharge tube and first order protection location and second level protection location between resistance
Delay unit, effectively by output voltage can be reduced to below 1.5KV while Surge Protector is minimized.
2nd, the utility model simple structure, novel in design, low cost, with wide applicability.
Description of the drawings
Fig. 1 is shown as a kind of theory diagram of surge protection circuit of the present utility model.
Fig. 2 is shown as a kind of concrete structure schematic diagram of Surge Protector of the present utility model.
Fig. 3 is shown as a kind of theory diagram of Surge Protector of the present utility model.
Component label instructions
10 Surge Protectors
100 surge protection circuits
101 first order protection locations
102 second level protection locations
103 delay units
104 fault indication units
105 resistance-capacitance depressurization units
Specific embodiment
Embodiment of the present utility model is illustrated below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands easily other advantages of the present utility model and effect.The utility model can also be by addition
Different specific embodiments is carried out or applies, and the every details in this specification can also be based on different viewpoints and answer
With, without departing from it is of the present utility model spirit under carry out various modifications and changes.
The purpose of the present embodiment is to provide a kind of surge protection circuit and the surge protection with the surge protection circuit
Device, for solving prior art in Surge Protector volume it is larger, complex structure, during some compact apparatus can not be suitable for
Problem.A kind of surge protection circuit and the Surge Protector with the surge protection circuit of the present embodiment described in detail below
Principle and embodiment, make those skilled in the art do not need creative work be appreciated that the present embodiment a kind of surge protect
Protection circuit and the Surge Protector with the surge protection circuit.
As shown in figure 1, the present embodiment provides a kind of surge protection circuit 100, the surge protection circuit 100 sets in structure
On meter, using second class protection, when the excessive lightning current of line influence, it forms differential mode and common mode protection, with small volume, phase
Answer speed fast, the control source of 15kv is effectively quickly reduced to lightning protection effect good advantage the voltage of below 1.5kv
Output, it is ensured that power circuit work is not affected by thunder and lightning and surge.Specifically, as shown in figure 1, the surge protection circuit 100
Including：First order protection location 101, second level protection location 102 and is connected to the first order protection location 101 and described
Delay unit 103 between second level protection location 102.
Specifically, as shown in Fig. 2 the surge protection circuit 100 includes：Zero line input N-input, live wire input
L-input, zero line output end N-output, fire wire output end L-output, earth terminal, first order protection location 101, the second level
Protection location 102 and the time delay list being connected between the first order protection location 101 and the second level protection location 102
Unit 103.
Wherein, in the present embodiment, the first order protection location 101 is used to carry out first order earial drainage to input voltage,
The first order protection location 101 absorbs larger surge, and specifically, the first order protection location 101 includes：First is pressure-sensitive
Resistance VR1, the second piezo-resistance VR2, the 3rd piezo-resistance VR3, first gas discharge tube GDT1 and second gas discharge tube
GDT2；Wherein, one end of first piezo-resistance VR1 is connected to the live wire input L-input, the other end and described
One end of three piezo-resistances VR3 is connected with one end of the second gas discharge tube GDT2；The one of second piezo-resistance VR2
The end connection live wire input L-input, the other end is connected with one end of the first gas discharge tube GDT1；Described 3rd
One end of piezo-resistance VR3 is connected with the other end of the zero line input N-input and the first gas discharge tube GDT1,
The other end of the 3rd piezo-resistance VR3 is connected with one end of the second gas discharge tube GDT2；The second gas are put
The other end of fulgurite GDT2 is connected with the earth terminal.
I.e. in the present embodiment, it is connected between second piezo-resistance VR2 and the 3rd piezo-resistance VR3 described
First gas discharge tube GDT1, earial drainage is carried out by the first gas discharge tube GDT1 by lightning current.
In the present embodiment, the second level protection location 102 absorbs residual voltage, and the second level protection location 102 is used for
Second level earial drainage is carried out so that output voltage meets to the residual voltage after the first order earial drainage of the first order protection location 101
Output is required.Specifically, the second level protection location 102 includes the 4th piezo-resistance VR4, the 4th piezo-resistance VR4
One end be connected between live wire input L-input and fire wire output end L-output, the other end is connected to zero line input
Between N-input and zero line output end N-output.
In the present embodiment, the delay unit 103 is used to delay the working time of second level protection location 102, institute
State delay unit 103 and play time-lag action, specifically, the delay unit 103 includes：It is connected to live wire input L-input
The first inductance L1 and fire wire output end L-output between and it is connected to zero line input N-input and zero line output end N-
One end of the second inductance L2 between output, the first inductance L1 is also connected with one end of first piezo-resistance VR1,
The other end is also connected with one end of the 4th piezo-resistance VR4, and one end of the second inductance L2 is also pressure-sensitive with the described 3rd
The other end of the other end of resistance VR3 and the first gas discharge tube GDT1 is connected, and the other end of the second inductance L2 is also
It is connected with the other end of the 4th piezo-resistance VR4.
By the time delay of the delay unit 103, in the first order protection location 101 by most of lightning current earial drainage
Afterwards, second level protection location 102 just starts second level earial drainage, by the second level protection location 102 further by residual voltage
It is decreased to satisfactory below 1.5KV.
Wherein, in the present embodiment, the first inductance L1 and the second inductance L2 are all differential mode inductance.
In the present embodiment, the surge protection circuit 100 also includes：It is connected on the live wire input L-input
The first Thermal Cutoffs F1, the second temperature fuse F2 that is connected on the zero line input N-input.By described
One Thermal Cutoffs F1, the second temperature fuse F2 are provided and are worked as first piezo-resistance VR1, second piezo-resistance
Power-off protection is provided when heating produces high temperature after VR2, the 3rd piezo-resistance VR3 and the 4th piezo-resistance VR4 failure.
The 3rd fuse F3 being connected between the first inductance L1 and fire wire output end L-output.By the fuse
The fuse F3 of fuse the 3rd, when there is excessively stream on the circuit of corresponding connection, there is provided power-off protection.
In the present embodiment, the surge protection circuit 100 is also connected to fire wire output end L- including one end
On output, the other end is connected to the fault indication unit 104 on the N-output of zero line output end.
Specifically, the fault indication unit 104 includes a reverse diode in parallel and a LED light, i.e.,
Diode D1 and LED light D2.When circuit normal work, respective diode is lighted, and there is failure on circuit or in non-
During working condition, respective diode is extinguished, to remind staff.
In the present embodiment, the surge protection circuit 100 also includes being connected to the fault indication unit 104 and described
Resistance-capacitance depressurization unit 105 between the N-output of zero line output end.
Specifically, in the present embodiment, the resistance-capacitance depressurization unit 105 includes the electric capacity C1 and resistance R1 of series connection.So
Surge protection circuit 100 in the present embodiment can also realize high frequency wave, effectively improve Electro Magnetic Compatibility.
Additionally, as shown in figure 3, the present embodiment also provides a kind of Surge Protector 10, the Surge Protector 10 include as
Upper described surge protection circuit 100.Above-mentioned that the surge protection circuit 100 has been described in detail, here is no longer
Repeat.
In sum, in the utility model surge protection circuit by the second piezo-resistance in first order protection location and the
By two inductance between first gas discharge tube and first order protection location and second level protection location between three piezo-resistances
The delay unit of composition, effectively by output voltage can be reduced to below 1.5KV while Surge Protector is minimized；
The utility model simple structure, novel in design, low cost, with wide applicability.So, the utility model effectively overcomes
Various shortcoming of the prior art and have high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art all can be carried out under without prejudice to spirit and the scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (10)
1. a kind of surge protection circuit, it is characterised in that：The surge protection circuit includes：Zero line input, live wire input,
Zero line output end, fire wire output end, earth terminal, for carrying out the first order protection location of first order earial drainage to input voltage, is used
Residual voltage after to first order earial drainage carries out second level earial drainage so that output voltage meets the second level guarantor that output is required
Protecting unit and being connected between the first order protection location and the second level protection location is used to delay the second level
The delay unit of protection location working time, wherein：
The first order protection location includes：First piezo-resistance, the second piezo-resistance, the 3rd piezo-resistance, first gas are put
Fulgurite and second gas discharge tube；Wherein, one end of first piezo-resistance is connected to the live wire input, the other end with
One end of 3rd piezo-resistance is connected with one end of the second gas discharge tube；One end of second piezo-resistance connects
The live wire input is connect, the other end is connected with one end of the first gas discharge tube；One end of 3rd piezo-resistance
It is connected with the other end of the zero line input and the first gas discharge tube, the other end of the 3rd piezo-resistance and institute
The one end for stating second gas discharge tube is connected；The other end of the second gas discharge tube is connected with the earth terminal；
The second level protection location includes the 4th piezo-resistance, and one end of the 4th piezo-resistance is connected to live wire input
And fire wire output end between, the other end is connected between zero line input and zero line output end；
The delay unit includes：It is connected to the first inductance between live wire input and fire wire output end and to be connected to zero line defeated
Enter the second inductance between end and zero line output end, one end of first inductance also with one end phase of first piezo-resistance
Even, the other end is also connected with one end of the 4th piezo-resistance, one end of second inductance also with the 3rd pressure-sensitive electricity
The other end of one end of resistance and the first gas discharge tube is connected, and the other end of second inductance is also pressure-sensitive with the described 4th
The other end of resistance is connected.
2. surge protection circuit according to claim 1, it is characterised in that：The surge protection circuit also includes being connected to
The first Thermal Cutoffs on the live wire input.
3. surge protection circuit according to claim 1, it is characterised in that：The surge protection circuit also includes being connected to
Second temperature fuse on the zero line input.
4. surge protection circuit according to claim 1, it is characterised in that：The surge protection circuit also includes being connected to
The 3rd fuse between first inductance and the fire wire output end.
5. surge protection circuit according to claim 1, it is characterised in that：The surge protection circuit also connects including one end
It is connected in the fire wire output end, the other end is connected to the fault indication unit on zero line output end.
6. surge protection circuit according to claim 5, it is characterised in that：The fault indication unit includes in parallel reverse
A diode and a LED light.
7. surge protection circuit according to claim 1, it is characterised in that：The surge protection circuit also includes being connected to
Resistance-capacitance depressurization unit between the fault indication unit and the zero line output end.
8. surge protection circuit according to claim 7, it is characterised in that：The resistance-capacitance depressurization unit includes the electricity of series connection
Hold and resistance.
9. surge protection circuit according to claim 1, it is characterised in that：First inductance and second inductance are same
For differential mode inductance.
10. a kind of Surge Protector, it is characterised in that：The Surge Protector is included as claim 1 is arbitrary to claim 9
Surge protection circuit described in claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125504.7U CN206117149U (en) | 2016-10-14 | 2016-10-14 | Surge protection circuit and have surge protection ware of this surge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125504.7U CN206117149U (en) | 2016-10-14 | 2016-10-14 | Surge protection circuit and have surge protection ware of this surge protection circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206117149U true CN206117149U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621125504.7U Active CN206117149U (en) | 2016-10-14 | 2016-10-14 | Surge protection circuit and have surge protection ware of this surge protection circuit |
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| CN (1) | CN206117149U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449908A (en) * | 2018-12-12 | 2019-03-08 | 武汉泰可电气股份有限公司 | Lightening surge preventing HV live displaying nuclear phase blocking device and system |
| CN109787210A (en) * | 2017-11-15 | 2019-05-21 | 发那科株式会社 | Surge protection circuit and device of surge protector |
| CN112332390A (en) * | 2020-08-04 | 2021-02-05 | 深圳市海洋王照明工程有限公司 | Surge protector and LED low dome lamp |
| CN112688290A (en) * | 2020-12-29 | 2021-04-20 | 上海闪替电子科技有限公司 | Transient overvoltage protection device of LED street lamp driving power supply |
| CN118137442A (en) * | 2024-05-07 | 2024-06-04 | 深圳市瑞隆源电子有限公司 | Surge protection system and equipment |
-
2016
- 2016-10-14 CN CN201621125504.7U patent/CN206117149U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787210A (en) * | 2017-11-15 | 2019-05-21 | 发那科株式会社 | Surge protection circuit and device of surge protector |
| US10855075B2 (en) | 2017-11-15 | 2020-12-01 | Fanuc Corporation | Surge protective circuit and surge protective device |
| CN109787210B (en) * | 2017-11-15 | 2021-07-06 | 发那科株式会社 | Surge protection circuit and surge protection device |
| CN109449908A (en) * | 2018-12-12 | 2019-03-08 | 武汉泰可电气股份有限公司 | Lightening surge preventing HV live displaying nuclear phase blocking device and system |
| CN112332390A (en) * | 2020-08-04 | 2021-02-05 | 深圳市海洋王照明工程有限公司 | Surge protector and LED low dome lamp |
| CN112332390B (en) * | 2020-08-04 | 2023-12-15 | 深圳市海洋王照明工程有限公司 | Surge protector and LED low ceiling lamp |
| CN112688290A (en) * | 2020-12-29 | 2021-04-20 | 上海闪替电子科技有限公司 | Transient overvoltage protection device of LED street lamp driving power supply |
| CN118137442A (en) * | 2024-05-07 | 2024-06-04 | 深圳市瑞隆源电子有限公司 | Surge protection system and equipment |
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