CN203233162U - Surge protection device - Google Patents
Surge protection device Download PDFInfo
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- CN203233162U CN203233162U CN 201320261642 CN201320261642U CN203233162U CN 203233162 U CN203233162 U CN 203233162U CN 201320261642 CN201320261642 CN 201320261642 CN 201320261642 U CN201320261642 U CN 201320261642U CN 203233162 U CN203233162 U CN 203233162U
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Abstract
The utility model discloses a surge protection device which comprises a resistor R1, a resistor R2, a capacitor, an inductor, and a diode. The negative electrode of the diode and one terminal of the resistor R1 are respectively connected with two terminals of the inductor, and the other terminal of the resistor R1 is connected to the positive electrode of the diode which is grounded. The resistor R2 is in series with the capacitor. The other terminal of the capacitor is grounded. The other terminal of the resistor R2 is connected between the resistor R1 and the inductor. The surge protection device is advantageous by having a simple structure, and being capable of completely discharging the surge generated at a moment when a power of electronic equipment is turned on so as to protect an inner circuit of the electronic equipment from being damaged by the surge.
Description
Technical field
The utility model belongs to anti-surge technical field, relates to a kind of anti-Surge Protector in particular.
Background technology
Because the inside of electronic equipment is integrated with a lot of electronic devices and components, electric equipment has powerful impact failure at electric power starting its input impulse current of moment to equipment, and it can connect anti-surge circuit at the power port of electric equipment, protects electronic equipment with this.But its circuit structure relative complex of existing anti-surge circuit can not be impacted input sometimes and be released fully.
The utility model content
The utility model provides a kind of anti-Surge Protector, and its circuit structure is simple, can completely electronic equipment power source be opened the surge of moment and release fully, to avoid surge the internal circuit of electronic equipment is damaged.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of anti-Surge Protector; it comprises resistance R 1, resistance R 2, electric capacity, inductance and diode; one end of the negative pole of described diode and resistance R 1 is connected to the two ends of inductance; the other end of resistance R 1 is connected on the positive pole of diode; the plus earth of described diode; described resistance R 2 and electric capacity are in series, the other end ground connection of described electric capacity, and the other end of described resistance R 2 is connected between resistance R 1 and the inductance.
Further technical scheme is:
Described resistance R 1 is piezo-resistance.
Described diode is Transient Suppression Diode.
The Standard resistance range of described resistance R 1 is 2000 ohm to 3000 ohm.
The Standard resistance range of described resistance R 2 is 500 ohm to 1000 ohm.
In the utility model, be connected on the interface of electronic equipment between resistance R 1 and the resistance R 2, be connected between inductance and the diode cathode on the internal circuit of electronic equipment.Resistance R 2 and electric capacity constitute the RC oscillating circuit, and it cushions as prime, high-frequency signal is filtered out, and the impact electric current plays cushioning effect.Inductance impact electric current produces the reverse induction electric current, offsets the part percussion.When the voltage at two ends during greater than certain value, the rapid conducting of Transient Suppression Diode, the resistance of piezo-resistance diminishes, thereby surge is released, and to avoid surge the internal circuit of electronic equipment is damaged.This circuit comprises resistance R 1, resistance R 2, electric capacity, inductance and 5 electronic devices and components of diode, and its circuit structure is simple, is convenient to integrated.
Compared with prior art, the beneficial effects of the utility model are:
1, circuit of the present utility model only comprises 5 electronic devices and components, and its circuit structure is simple, is convenient to integrated.
2, the surge that can effectively electronic equipment be started shooting moment of the present utility model is released, and effectively protects the internal circuit of electronic equipment.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
[embodiment]
A kind of anti-Surge Protector as shown in Figure 1; it comprises resistance R 1, resistance R 2, electric capacity, inductance and diode; one end of the negative pole of described diode and resistance R 1 is connected to the two ends of inductance; the other end of resistance R 1 is connected on the positive pole of diode; the plus earth of described diode; described resistance R 2 and electric capacity are in series, the other end ground connection of described electric capacity, and the other end of described resistance R 2 is connected between resistance R 1 and the inductance.
Described resistance R 1 is piezo-resistance.
Described diode is Transient Suppression Diode.
The Standard resistance range of described resistance R 1 is 2000 ohm to 3000 ohm.
The Standard resistance range of described resistance R 2 is 500 ohm to 1000 ohm.
The course of work of present embodiment is as follows:
In the utility model, be connected on the interface of electronic equipment between resistance R 1 and the resistance R 2, be connected between inductance and the diode cathode on the internal circuit of electronic equipment.Resistance R 2 and electric capacity constitute the RC oscillating circuit, and it cushions as prime, high-frequency signal is filtered out, and the impact electric current plays cushioning effect.Inductance impact electric current produces the reverse induction electric current, offsets the part percussion.When the voltage at two ends during greater than certain value, the rapid conducting of Transient Suppression Diode, the resistance of piezo-resistance diminishes, thereby surge is released, and to avoid surge the internal circuit of electronic equipment is damaged.
According to the above embodiments, can well finish the utility model.
Be embodiment of the present utility model as mentioned above.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (5)
1. anti-Surge Protector; it is characterized in that: it comprises resistance R 1, resistance R 2, electric capacity, inductance and diode; one end of the negative pole of described diode and resistance R 1 is connected to the two ends of inductance; the other end of resistance R 1 is connected on the positive pole of diode; the plus earth of described diode; described resistance R 2 and electric capacity are in series, the other end ground connection of described electric capacity, and the other end of described resistance R 2 is connected between resistance R 1 and the inductance.
2. a kind of anti-Surge Protector according to claim 1 is characterized in that: described resistance R 1 is piezo-resistance.
3. a kind of anti-Surge Protector according to claim 2, it is characterized in that: described diode is Transient Suppression Diode.
4. a kind of anti-Surge Protector according to claim 1, it is characterized in that: the Standard resistance range of described resistance R 1 is 2000 ohm to 3000 ohm.
5. a kind of anti-Surge Protector according to claim 1, it is characterized in that: the Standard resistance range of described resistance R 2 is 500 ohm to 1000 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261642 CN203233162U (en) | 2013-05-15 | 2013-05-15 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261642 CN203233162U (en) | 2013-05-15 | 2013-05-15 | Surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233162U true CN203233162U (en) | 2013-10-09 |
Family
ID=49289266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261642 Expired - Fee Related CN203233162U (en) | 2013-05-15 | 2013-05-15 | Surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233162U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248029A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Surge protector with simple structure |
| CN104485643A (en) * | 2014-11-26 | 2015-04-01 | 四川天启智源科技有限公司 | Intelligent building control device |
| WO2018113346A1 (en) * | 2016-12-23 | 2018-06-28 | 华为技术有限公司 | Interface protection circuit and device interface |
-
2013
- 2013-05-15 CN CN 201320261642 patent/CN203233162U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248029A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | Surge protector with simple structure |
| CN104485643A (en) * | 2014-11-26 | 2015-04-01 | 四川天启智源科技有限公司 | Intelligent building control device |
| WO2018113346A1 (en) * | 2016-12-23 | 2018-06-28 | 华为技术有限公司 | Interface protection circuit and device interface |
| US11509134B2 (en) | 2016-12-23 | 2022-11-22 | Huawei Technologies Co., Ltd. | Communication interface protection circuit having transient voltage suppression |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140515 |