CN205039535U - PLC switch board with lightning protection - Google Patents
PLC switch board with lightning protection Download PDFInfo
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- CN205039535U CN205039535U CN201520774363.0U CN201520774363U CN205039535U CN 205039535 U CN205039535 U CN 205039535U CN 201520774363 U CN201520774363 U CN 201520774363U CN 205039535 U CN205039535 U CN 205039535U
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- power supply
- lightning protection
- relay
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Abstract
The utility model provides a PLC switch board with lightning protection, includes that PLC module, 1# keep apart the relay, 2# keeps apart relay, signal lightning protection device, auxiliary relay, DC power supply and second grade source defend thunder equipment, 1# keep apart the relay with 2# keeps apart the relay and connects PLC's DO module, the signal lightning protection device is connected respectively PLC's AI module and AO module, auxiliary relay connects the DI module, second grade source defend thunder equipment connects alternating current power supply, DC power supply connects the PLC module. The utility model discloses an install signal lightning protection device and source defend thunder equipment in the PLC switch board, the effect that makes the PLC switch board realize PLC switch board numeral, simulation, the all -round lightning protection of power has been avoided being struck by lightning and receiving the damage.
Description
Technical field
The utility model relates to PLC control cabinet technical field, particularly relates to a kind of PLC control cabinet with lightning protection.
Background technology
Thunder and lightning is with lightning and the thunderous a kind of grand and electric discharge phenomena that are bound to arouse fear a little, generally results from the active cumulonimbus of convection current, therefore normal with strong fitful wind and heavy rain, sometimes also with hail and cyclone.Thunder and lightning divides direct lightning strike, electromagnetic pulse, spherical thunder, cloud to dodge four kinds.Wherein direct lightning strike and spherical thunder all can work the mischief to people and building, and electromagnetic pulse major effect electronic equipment, be mainly subject to caused by induction effect; Cloud dodges owing to being between two pieces of clouds or the generation of the both sides of one piece of cloud, so endanger minimum to the mankind.
PLC integrated control cabinet has the defencive functions such as overload, short circuit, open-phase protection.It has compact conformation, working stability, multiple functional.Size can be touched according to working control rule, combine, both can realize single cabinet and automatically control, also can realize many cabinets and form collecting and distributing (DCS) control system by Industrial Ethernet.PLC control cabinet can adapt to the industrial automatic control occasion of all size scale, is widely used in the industries such as electric power, metallurgy, chemical industry, papermaking, environment protection sewage process.
But existing PLC control cabinet does not have omnibearing lightning-protection system usually, therefore still often occur by broken by lightning phase phenomenon, effectively cannot prevent the thunderbolt of PLC control cabinet.
Utility model content
The purpose of this utility model is to solve and cannot effectively prevents the thunderbolt of PLC control cabinet from proposing a kind of PLC control cabinet with lightning protection.
For reaching this object, the utility model by the following technical solutions:
There is a PLC control cabinet for lightning protection, comprise PLC module, 1# disconnecting relay, 2# disconnecting relay, siganl thunder-proof device, auxiliary relay, DC power supply and secondary power supply lightning protection device;
Described 1# disconnecting relay is connected the DO module of described PLC with described 2# disconnecting relay; Described siganl thunder-proof device connects AI module and the AO module of described PLC respectively; Described auxiliary relay connects DI module; Described secondary power supply lightning protection device connects AC power; Described DC power supply connects described PLC.
Preferably, described PLC is positioned at the top of mounting panel, and described DC power supply is installed in the below of described PLC; The below of described DC power supply from left to right installs described 1# disconnecting relay and 2# disconnecting relay successively; Described auxiliary relay and described siganl thunder-proof device are installed in the below of described 1# disconnecting relay and 2# disconnecting relay; Described secondary power supply lightning protection device is installed in the below of described auxiliary relay and described siganl thunder-proof device.
Preferably, described DC power supply and between described 1# disconnecting relay and 2# disconnecting relay, and from left to right circuit breaker, miniature circuit breaker and DC circuit breaker are installed successively.
Preferably, the left side of described 1# disconnecting relay is provided with condensation temperature monitor and molten seat successively, the right side of described 2# disconnecting relay be provided with successively pine this two or three to insert, change over switch and Ethernet switch.
Preferably, between described secondary power supply lightning protection device and described auxiliary relay, Modular socket is installed.
Preferably, the right side of described DC power supply is provided with auxiliary relay power supply terminal, DI modular power source binding post, DO modular power source binding post, AI modular power source binding post, Ethernet switch power supply terminal and stand-by power supply binding post successively.
Preferably, described mounting panel is provided with wire casing.
The utility model, by being provided with siganl thunder-proof device and lightning protection for power supply in PLC control cabinet, making PLC control cabinet achieve the effect of PLC cabinet numeral, simulation, the comprehensive lightning protection of power supply, avoids and be damaged by being struck by lightning.
Accompanying drawing explanation
Fig. 1 is the front elevational schematic of the utility model specific embodiment.
Wherein: 1 is PLC module, 51 is DC power supply, and 56 is Ethernet switch, 57 is 1# disconnecting relay, and 58 is 2# disconnecting relay, and 61 is secondary power supply lightning protection device, 63 is auxiliary relay, and 65 is siganl thunder-proof device, and 71 is circuit breaker, 72 is miniature circuit breaker, and 74 is DC rel., and 77 is molten seat, 94 is change over switch, 103 is that pine originally two or three inserts, and 104 is Modular socket, and 132 is wire casing.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of PLC control cabinet with lightning protection, comprises PLC module 1,1# disconnecting relay 57,2# disconnecting relay 58, siganl thunder-proof device 65, auxiliary relay 63, DC power supply 51 and secondary power supply lightning protection device 61;
Described 1# disconnecting relay 57 is connected the DO module of described PLC module 1 with 2# disconnecting relay 58; Described siganl thunder-proof device 65 connects AI module and the AO module of described PLC module 1 respectively; Described auxiliary relay 63 connects the DI module of described PLC module 1; Described secondary power supply lightning protection device 61 connects AC power; Described DC power supply 51 connects described PLC module 1.
Described 1# disconnecting relay 57 and 2# disconnecting relay 58 are by the DO model calling of holding wire and described PLC module 1; Described siganl thunder-proof device 65 is by the AI module of described binding post and described PLC module 1 and AO model calling; The DI module of described auxiliary relay 63 and described PLC module 1; Make PLC control cabinet digital signal, function that analog signal has lightning protection, be not damaged when there is thunderbolt.Described secondary power supply lightning protection device 61 connects described AC power; Protection PLC control cabinet power supply is not by broken by lightning.
Siganl thunder-proof device 65 prevents from thunder and lightning and other internal overvoltages from invading equipment to cause damage, to the equipment that the surge of indirect thunder and lightning and direct effects of lightning or other instantaneous overvoltages is protected, is specially adapted for the lightning protection standard of signal line.
Signal can run into various interference in transmitting procedure, uses described auxiliary relay 63, can ensure signal stabilization; Described auxiliary relay 63, first by the digital signal that PLC accepts, carries out isolation conversion by light sensation or magnetic strength device, carries out isolation processing to the power supply of signal after isolation, ensure the signal after isolation, power supply, between definitely independently.
Lightning protection for power supply (SPD) has another name called lightning arrester, Surge Protector, surge protector.In today of information age, computer network and communication apparatus more and more accurate, the requirement of its operational environment is also more and more higher, and the transient overvoltage of thunder and lightning and large electric equipment can pass through circuit intrusion indoor electric equipment and the network equipments such as power supply, antenna, radio signal transceiver more and more frequently, cause equipment or component damage, casualties, transmission or the data stored are interfered or lose, electronic equipment is even made to produce misoperation or temporarily paralysis, system-down, data-transmission interruptions, local area network (LAN) and even wide area network are destroyed.Its harm is startling, and indirect loss is generally far longer than direct economic loss.Lightning protection for power supply is exactly prevented by the equipment in being struck by lightning by modern electricity and other technology
Preferably, described PLC module 1 is positioned at the top of mounting panel, and described DC power supply 51 is installed in the below of described PLC module 1; The below of described DC power supply 51 from left to right installs described 1# disconnecting relay 57 and 2# disconnecting relay 58 successively; Described auxiliary relay 63 and described siganl thunder-proof device 65 are installed in the below of described 1# disconnecting relay 57 and 2# disconnecting relay 58; Described secondary power supply lightning protection device 61 is installed in the below of described auxiliary relay 63 and described siganl thunder-proof device 65.
Such structural design compact conformation, volume is little, saves cost.
Preferably, described DC power supply 51 and between described 1# disconnecting relay 57 and 2# disconnecting relay 58, and from left to right circuit breaker, miniature circuit breaker and DC circuit breaker are installed successively.
Described circuit breaker 71, described miniature circuit breaker 72 and described DC circuit breaker 73 is adopted to play the effect of multiple protective.
Preferably, the left side of described 1# disconnecting relay 57 is provided with condensation temperature monitor 87 and molten seat 77 successively, the right side of described 2# disconnecting relay 58 be provided with successively pine this two or three insert 103, change over switch 94 and Ethernet switch 56.
Described condensation temperature monitor 87 can control in real time to the temperature humidity of environment, and automatic starting duty ensures that temperature index meets working stamndard, effectively prevents described PLC control cabinet condensation from producing simultaneously.Described molten seat 77 plays fixation, alternate safe distance; Described pine originally two or three inserts the connection that 103 facilitate PLC control cabinet and circumscripted power line; Described change over switch 94 change over switch has that multiconductor, multiposition, volume are little, dependable performance, the advantage such as easy to operate, flexible for installation, be used for the insertion switch of power supply in electric control circuit, play conversion electric power effect, also can be used as the control switch directly controlling low capacity asynchronous motor and infrequently start and stop.Described Ethernet switch 56 can be communicated with many to port simultaneously, makes every main frame mutually communicated for a pair as exclusive communication medium, can carry out ensuring escapement from confliction transmission data.
Preferably, between described secondary power supply lightning protection device 61 and described auxiliary relay 63, Modular socket 104 is installed.
Socket in described Modular socket is all standard size, and structure has single-phase 2 holes, single-phase 3 holes, three-phase 3 hole, three-phase 4 hole, three-phase 5 hole etc., and main mounting means is guide rails assembling, is easy to install and dismantle and combination in any.
Preferably, the right side of described DC power supply 51 is provided with auxiliary relay power supply terminal, DI module binding post, DO modular power source binding post, AI modular power source binding post, Ethernet switch power supply terminal and stand-by power supply binding post successively.
Employing binding post connects, and facilitates line, extends the useful life of connectivity port.
Preferably, described mounting panel is provided with wire casing 132.
Described wire casing 132, for placing electric wire or holding wire etc., makes whole mounting panel arrange clean and tidy.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (7)
1. there is a PLC control cabinet for lightning protection, it is characterized in that: comprise PLC module, 1# disconnecting relay, 2# disconnecting relay, siganl thunder-proof device, auxiliary relay, DC power supply and secondary power supply lightning protection device;
Described 1# disconnecting relay is connected the DO module of described PLC with described 2# disconnecting relay; Described siganl thunder-proof device connects AI module and the AO module of described PLC respectively; Described auxiliary relay connects DI module; Described secondary power supply lightning protection device connects AC power; Described DC power supply connects described PLC module.
2. the PLC control cabinet with lightning protection according to claim 1, is characterized in that: described PLC module is positioned at the top of mounting panel, described DC power supply is installed in the below of described PLC module; The below of described DC power supply from left to right installs described 1# disconnecting relay and 2# disconnecting relay successively; Described auxiliary relay and described siganl thunder-proof device are installed in the below of described 1# disconnecting relay and 2# disconnecting relay; Described secondary power supply lightning protection device is installed in the below of described auxiliary relay and described siganl thunder-proof device.
3. the PLC control cabinet with lightning protection according to claim 2, is characterized in that: described DC power supply and between described 1# disconnecting relay and 2# disconnecting relay, and is from left to right provided with circuit breaker, miniature circuit breaker and DC circuit breaker successively.
4. the PLC control cabinet with lightning protection according to claim 3, it is characterized in that: the left side of described 1# disconnecting relay is provided with condensation temperature monitor and molten seat successively, the right side of described 2# disconnecting relay be provided with successively pine this two or three to insert, change over switch and Ethernet switch.
5. the PLC control cabinet with lightning protection according to claim 4, is characterized in that: be provided with Modular socket between described secondary power supply lightning protection device and described auxiliary relay.
6. the PLC control cabinet with lightning protection according to claim 5, is characterized in that: the right side of described DC power supply is provided with auxiliary relay power supply terminal, DI modular power source binding post, DO modular power source binding post, AI modular power source binding post, Ethernet switch power supply terminal and stand-by power supply binding post successively.
7. the PLC control cabinet with lightning protection according to claim 6, is characterized in that: described mounting panel is provided with wire casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774363.0U CN205039535U (en) | 2015-09-30 | 2015-09-30 | PLC switch board with lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520774363.0U CN205039535U (en) | 2015-09-30 | 2015-09-30 | PLC switch board with lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039535U true CN205039535U (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520774363.0U Expired - Fee Related CN205039535U (en) | 2015-09-30 | 2015-09-30 | PLC switch board with lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065764A (en) * | 2017-06-20 | 2017-08-18 | 成都华气厚普机电设备股份有限公司 | A kind of LNG gas stations intelligence control system and its control method |
| CN110137813A (en) * | 2019-04-30 | 2019-08-16 | 上海智大电子有限公司 | A kind of ACU control cabinet suitable for pipe gallery environment |
-
2015
- 2015-09-30 CN CN201520774363.0U patent/CN205039535U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065764A (en) * | 2017-06-20 | 2017-08-18 | 成都华气厚普机电设备股份有限公司 | A kind of LNG gas stations intelligence control system and its control method |
| CN107065764B (en) * | 2017-06-20 | 2023-09-22 | 成都华气厚普机电设备股份有限公司 | Intelligent control system and control method for LNG (liquefied Natural gas) station |
| CN110137813A (en) * | 2019-04-30 | 2019-08-16 | 上海智大电子有限公司 | A kind of ACU control cabinet suitable for pipe gallery environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20160930 |