CN202535065U - Comprehensive surge protector of monitoring system - Google Patents
Comprehensive surge protector of monitoring system Download PDFInfo
- Publication number
- CN202535065U CN202535065U CN2012201765986U CN201220176598U CN202535065U CN 202535065 U CN202535065 U CN 202535065U CN 2012201765986 U CN2012201765986 U CN 2012201765986U CN 201220176598 U CN201220176598 U CN 201220176598U CN 202535065 U CN202535065 U CN 202535065U
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- lightning protection
- gas discharge
- discharge tube
- protection circuit
- surge protector
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Abstract
The utility model relates to a comprehensive surge protector of a monitoring system. The comprehensive surge protector is formed by a signal transmission lightning protection circuit, a control lightning protection circuit and a power supply lightning protection circuit in connection mode. The signal transmission lightning protection circuit is composed of a gas discharge tube G1, a decoupling resistor R1, a transient voltage suppressor diode D1 and fast recovery diodes D2 and D3. The control lightning protection circuit is composed of a gas discharge tube G2, decoupling resistors R2 and R3, a bridge rectifier DB107 and a transient voltage suppressor diode D4. The power supply lightning protection circuit is composed of a gas discharge tube G3, decoupling inductors L1 and L2 and transient voltage suppressor diodes D 5, D 6 and D7. The G pole of the gas discharge tube G1, the G pole of the gas discharge tube G2 and the G pole of the gas discharge tube G3 are connected in parallel. Aiming at the monitoring system, the comprehensive surge protector integrates needed lightning protection devices and performs lightning protection for a signal transmission part, a control part and a power supply part.
Description
Technical field
The utility model relates to safety monitoring equipment, and the comprehensive Surge Protector of particularly a kind of supervisory control system is used for signal, the control of safety monitoring equipment, the integrated protection of power supply three aspects.
Background technology
Popularize along with China is informationalized and the reinforcement of security protection consciousness, watch-dog has obtained using widely.Yet safety monitoring equipment all is microelectronic product, and these watch-dogs have characteristics such as high density, high-speed, low-voltage and low-power consumption.Precision because of the safety monitoring electronic equipment; Anti-overvoltage ability drop; It is to various very responsive such as electromagnetic interference such as lightning overvoltage, power system operation overvoltage, static discharge, electromagnetic radiation; Make supervisory control system equipment destroyed by Lightning Over-voltage, cause the whole monitoring system paralysis.
Because whole monitoring system is made up of signal hop, control section and power unit.Common Surge Protector on the market is just protected power supply merely now, and signal section and control section very easily receive badly damaged when thunder and lightning is attacked.
Summary of the invention
In view of the deficiency of prior art, in order to solve the problems of the technologies described above, the utility model provides a kind of comprehensive Surge Protector of supervisory control system, simultaneously signal hop, control section, power unit is carried out three aspect lightning protections.
The utility model is to realize through such technical scheme: the comprehensive Surge Protector of supervisory control system, it is characterized in that, and connect and compose by signal transmission lightning protection circuit, control lightning protection circuit and power lightning protection circuit;
Said signal transmission lightning protection circuit is made up of gas discharge tube G1, decoupling resistance R1, Transient Suppression Diode D1, fast recovery diode D2, D3; S1, S2 are the signal end coffret;
Said control lightning protection circuit is made up of gas discharge tube G2, decoupling resistance R2, R3, rectifier bridge heap DB107 and Transient Suppression Diode D4; C1, C2 are the control end coffret;
Said power lightning protection circuit is made up of gas discharge tube G3, decoupling inductance L 1, L2, Transient Suppression Diode D5, D6, D7; P1, P2 are the power end coffret;
Ground connection after the G level parallel connection of G level through gas discharge tube G1, the G level of gas discharge tube G2 and gas discharge tube G3.
The beneficial effect of the utility model is: to supervisory control system omnibearing lightning protection is provided; To supervisory control system, integrated required lightning protection component in one, meet the requirement of practicing thrift social energy-saving and emission-reduction; It is high and to the characteristics that the thunderbolt residual voltage is carried out follow-up constrain discharge to the stability of the interference of communication data, control circuit that product has the thunderbolt of having prevented, simultaneously signal hop, control section, power unit carried out three aspect lightning protections.
Description of drawings
Fig. 1, the comprehensive Surge Protector circuit diagram of supervisory control system.
Among the figure: S1, S2 are the signal end coffret; C1, C2 are control end transmission mouth; P1, P2 are the power end coffret; G1, G2, G3 are gas discharge tube, and pin comprises the A utmost point, the B utmost point, the G utmost point; R1, R2, R3 are decoupling resistance; L1, L2 are the decoupling inductance; D1, D4, D5, D6, D7 are Transient Suppression Diode; D2, D3 are fast recovery diode; The DB107 chip is the rectifier bridge heap.
Embodiment
Understand the utility model for clearer, describe the utility model in detail in conjunction with accompanying drawing and embodiment:
As shown in Figure 1, the comprehensive Surge Protector of supervisory control system is connected and composed by signal transmission lightning protection circuit, control lightning protection circuit and power lightning protection circuit;
Signal transmission lightning protection circuit is made up of gas discharge tube G1, decoupling resistance R1, Transient Suppression Diode D1, fast recovery diode D2, D3; S1, S2 are the signal end coffret;
The control lightning protection circuit is made up of gas discharge tube G2, decoupling resistance R2, R3, rectifier bridge heap DB107 and Transient Suppression Diode D4; C1, C2 are the control end coffret;
The power lightning protection circuit is made up of gas discharge tube G3, decoupling inductance L 1, L2, Transient Suppression Diode D5, D6, D7, and P1, P2 are the power end coffret;
Ground connection after the G level parallel connection of G level through gas discharge tube G1, the G level of gas discharge tube G2 and gas discharge tube G3.
In the signal transmission lightning protection circuit; Adopt gas discharge tube that thunderbolt voltage is carried out elementary discharge earlier; Adopt the resistance decoupling then, it is follow-up constrain to adopt Transient Suppression Diode and fast recovery diode that the thunderbolt residual voltage is carried out again, and this mode has prevented the interference of thunderbolt to communication data;
In the control lightning protection circuit; Adopt gas discharge tube that thunderbolt voltage is carried out elementary discharge earlier, adopt the resistance decoupling then, adopt rectifier bridge heap and Transient Suppression Diode to carry out follow-up constrain again; This mode has guaranteed after lightning induction produces, the stability of control circuit;
In the power lightning protection circuit; Adopt gas discharge tube that thunderbolt voltage is carried out elementary discharge earlier; Adopt the inductor filter decoupling then; Adopt three Transient Suppression Diodes that the thunderbolt residual voltage is carried out follow-up constrain discharge again, and three Transient Suppression Diodes provide differential mode and common mode to protect to power circuit, this mode has guaranteed the interference that power supply is not struck by lightning to greatest extent.
According to above-mentioned explanation, can realize the scheme of the utility model in conjunction with art technology.
Claims (1)
1. the comprehensive Surge Protector of supervisory control system is characterized in that, is connected and composed by signal transmission lightning protection circuit, control lightning protection circuit and power lightning protection circuit; Said signal transmission lightning protection circuit is made up of gas discharge tube G1, decoupling resistance R1, Transient Suppression Diode D1, fast recovery diode D2 and fast recovery diode D3; S1, S2 are the signal end coffret; Said control lightning protection circuit is made up of gas discharge tube G2, decoupling resistance R2, R3, rectifier bridge heap DB107 and Transient Suppression Diode D4; C1, C2 are the control end coffret; Said power lightning protection circuit is made up of gas discharge tube G3, decoupling inductance L 1, L2, Transient Suppression Diode D5, D6, D7; P1, P2 are the power end coffret; Ground connection after the G level parallel connection of G level through gas discharge tube G1, the G level of gas discharge tube G2 and gas discharge tube G3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201765986U CN202535065U (en) | 2012-04-24 | 2012-04-24 | Comprehensive surge protector of monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201765986U CN202535065U (en) | 2012-04-24 | 2012-04-24 | Comprehensive surge protector of monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535065U true CN202535065U (en) | 2012-11-14 |
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ID=47136222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201765986U Expired - Lifetime CN202535065U (en) | 2012-04-24 | 2012-04-24 | Comprehensive surge protector of monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202535065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887786A (en) * | 2013-04-28 | 2014-06-25 | 上海伊莱克斯实业有限公司 | Lightning protection device protecting RS485 transceivers |
| CN106849048A (en) * | 2017-03-14 | 2017-06-13 | 成都秉德科技有限公司 | A kind of lightning protection device suitable for the transmission lines of RS 485 |
| CN109390887A (en) * | 2017-08-14 | 2019-02-26 | 深圳康普盾科技股份有限公司 | A kind of combined connection box having lightning protection function |
-
2012
- 2012-04-24 CN CN2012201765986U patent/CN202535065U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887786A (en) * | 2013-04-28 | 2014-06-25 | 上海伊莱克斯实业有限公司 | Lightning protection device protecting RS485 transceivers |
| CN106849048A (en) * | 2017-03-14 | 2017-06-13 | 成都秉德科技有限公司 | A kind of lightning protection device suitable for the transmission lines of RS 485 |
| CN109390887A (en) * | 2017-08-14 | 2019-02-26 | 深圳康普盾科技股份有限公司 | A kind of combined connection box having lightning protection function |
| CN109390887B (en) * | 2017-08-14 | 2024-02-02 | 深圳康普盾科技股份有限公司 | Combined junction box with lightning protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |