CN202888822U - A novel control signal lightning protection device - Google Patents
A novel control signal lightning protection device Download PDFInfo
- Publication number
- CN202888822U CN202888822U CN 201220494396 CN201220494396U CN202888822U CN 202888822 U CN202888822 U CN 202888822U CN 201220494396 CN201220494396 CN 201220494396 CN 201220494396 U CN201220494396 U CN 201220494396U CN 202888822 U CN202888822 U CN 202888822U
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- lightning protection
- protection circuit
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Abstract
The utility model discloses a novel control signal lightning protection device comprising a housing and a PCB lightning protection circuit board. The PCB lightning protection circuit board is mounted in housing and is equipped with a wire incoming port, a device port, and a grounding port. A protection circuit is disposed between the wire incoming port and the device port. The protection circuit is connected with a disposed circuit breaking device. The housing is equipped with a wire incoming opening, a device opening, and a grounding opening. The wire incoming port and the device port use standard D485 interfaces. The housing is equipped with a heat disengaging member and indicating lamps. The novel control signal lightning protection device has characteristics of a reasonable structure, stable operation, and strong anti-lightning-stroke capability, and is equipped with standard interfaces so as to be suitable for different protection lines and achieve easy installation. Service condition of the device can be observed via the indicating lamps.
Description
Technical field
The utility model relates to a kind of surge protection device, especially a kind of novel control siganl thunder-proof device.
Background technology
Because of various high voltage electric equipments, such as transformer, switch, the dielectric strength of motor etc. has certain limit, for avoiding various overvoltage to the harm of these equipment, people are mostly at its other overvoltage protection device that is connected in parallel, connected and composed by the four stars type by four zinc oxide varistors such as the three-phase overvoltage protection device that is using at present, this three-phase overvoltage protection device exists weak point, at first, the connection of four stars type exists earth-free neutral point, when the three-phase voltage balance of system, the neutral point current potential is zero, Earth Phase zinc oxide varistor in the four stars type does not bear any voltage, the zinc oxide varistor that performance parameter is not good enough is easy to aging and accidents caused, this structural unreasonable hidden danger that both had been embedded in accident, caused again the increase of manufacturing cost, and resistor has certain useful life, in case increase widely because overaging makes the probability that has an accident, if when resistor lost efficacy, in time open circuit will cause great economic loss; The protector that is connected in circuit is lightning protection device; claim again surge protector; generally be mounted in device port; for the device that various lightning currents, switching overvoltage etc. are protected; at least contain a non-linear element; the lightning Protection Design of control signal interface is the key that assurance can move reliably and with long-term by equipment; development along with communication control unit; the variation of signaling interface type; the lightning Protection Design of existing single face can not satisfy people's larger demand; therefore, there is defective in prior art, needs to improve.
The utility model content
The technical problems to be solved in the utility model is for overcoming weak point of the prior art; provide a kind of rational in infrastructure; working stability; the anti-lightning ability is strong; standard interface is set; be applicable to different protection circuits, easy for installation, the novel control siganl thunder-proof device of operating position that can be by the indicator light facilities for observation.
For solving technical problem of the present utility model, the technical scheme that adopts is: a kind of novel control siganl thunder-proof device, comprise housing, PCB lightning protection wiring board, described PCB lightning protection wiring board is installed in the housing, inlet wire port, device port are established in the setting of described PCB lightning protection wiring board, between described inlet wire port and the device port protection circuit is set, described PCB lightning protection wiring board also is provided with grounding ports, and described protection circuit is connected in grounding ports; Described protection circuit also connects tripper is set, described housing is established the inlet wire opening, described inlet wire port is installed on the inlet wire opening, described housing equipment opening, described device port is installed on the equipment opening, establish the ground connection opening on the described housing, described grounding ports is installed on the ground connection opening, and described inlet wire port, device port are standard D485 interface; Heat is set on the described housing breaks away from member, also be provided with indicator light on the described housing, be connected with PCB lightning protection wiring board;
Described tripper is air switch or relay switch or normally closed interlock or fuse;
Described protection circuit is the combination of gas discharge tube or piezo-resistance or transient voltage suppressor or solid discharging tube or discharge air-gap or said elements;
Described housing selects flame-retardant PBT material or shielded metal to make;
The corresponding protection circuit of described indicator light is established a green LED, emitting red light diode, and when thunder resisting equipment normally used, the green emitting diode was bright, and when this thunder resisting equipment wore out or can not normally use, the emitting red light diode was bright.
Beneficial effect with respect to prior art is, D485 inlet wire port, the device port of standard have been adopted on the basis of original control signal lightning protection device, can be applicable to the kinds of protect circuit, plug and play, can protect 1 pair or 2 pairs of communication lines, for transfer of data provides meticulous protection, thereby effectively absorb and shift the energy impact that strong lightning induced voltage produces, have the fast characteristics of response of restriction lightning induced surge; Installation component is set, installation and maintenance are very convenient, the protection circuit that declines is set between inlet wire port, device port, strengthen the anti-lightning ability, lightning protection device arranges grounding ports, be connected with earth connection by grounding ports, reduce the trouble of direct connection, protection circuit is directly parallel on inlet wire port, the device port, adopt the common structure that consists of of disconnect and resistive protective element, make siganl thunder-proof device when surge occurs, the maximum output voltage of device port is lower than the maximum voltage that protected circuit can bear, thereby realizes overvoltage protection; Be serially connected with tripper between the protected device line; guaranteed resistor just in case occur damaging; itself and system can be broken away within the extremely short time; stopped to occur the accident of single-phase short circuit or phase fault; and; indicator light is set; when phase line is normally used; green indicating lamp is bright; when breaking down, red led is bright, is convenient for people to the clear abort situation of knowing; on-call maintenance is changed, and is applicable to the protection of communication special line, telemetered signal, remote signal, control appliance 482,422 signal transmission lines.
Description of drawings
Fig. 1 is basic structure circuit diagram of the present utility model;
Fig. 2 is external structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing optimal way of the present utility model is described in further detail.
As shown in Figure 1 and Figure 2, this a kind of novel control siganl thunder-proof device is rational in infrastructure, working stability, and the anti-lightning ability is strong, and standard interface is set, and is applicable to different protection circuits, and is easy for installation, can be by the operating position of indicator light facilities for observation.This a kind of novel control siganl thunder-proof device is applicable to the thunder and lightning of 485 Data Transmission Controlling circuits, data communication special line, voice band line and the protection of surge, adopt import semiconductor clamping device, through strictly screening, steady quality, comprise multi-stage protection, interstage matched is reasonable; The overvoltage response is quick, and clamp is accurate, and the output residual voltage is low, and insertion loss is little, and dual overcurrent protection function is ensured the fail safe of protection equipment greatly.This novel control siganl thunder-proof device, comprise housing 12, PCB lightning protection wiring board 3, described PCB lightning protection wiring board 3 is installed in the housing 12, described housing 12 selects flame-retardant PBT material or shielded metal to make, adopt international 35mm standard electrical guide rails assembling, convenient and swift, meet the requirement of electric operative norm fully, the degree of protection of housing reaches IP20; Heat is set on the described housing breaks away from member 11, when lightning protection device is crossed the thermal breakdown inefficacy, can automatically it be broken away from and indication from electrical network;
Described PCB lightning protection wiring board 3 is established the inlet wire port one, device port 6, between described inlet wire port one and the device port 6 protection circuit 5 is set, described housing is established inlet wire opening 2, described inlet wire port one is installed on the inlet wire opening 2, described housing equipment opening 7, described device port 6 is installed on the equipment opening 7, described inlet wire port one, device port 6 is standard D485 interface, to be applicable to the communication special line, telemetered signal, remote signal, control appliance 482, the equipment of the dissimilar protection circuits such as 422 signal transmission lines, the convenient use, needn't need again be equipped with lightning protection device by every replacing primary equipment, to a certain degree providing cost savings, in use, only need connection is connected with the port of PCB lightning protection wiring board 3 to the opening of housing and get final product, the protection path can divide single channel, two-way, multichannel, therefore, lightning protection device also can single or multiple integrative packagings, in order to be applied to monitoring head control, the decoding circuit, gate inhibition's data circuit, background music, video intercom, intelligence three tables, all-purpose card, the protection of fire protection warning circuit etc., prevent because of earth potential raise or the line influence overvoltage to the damage of equipment;
Described protection circuit 5 is the combination of gas discharge tube or piezo-resistance or transient voltage suppressor or solid discharging tube or discharge air-gap or said elements, has increased the overvoltage protection scope, and then has more fully protected equipment; Simultaneously, described protection circuit 5 also connects tripper 4 is set, described tripper 4 is air switch or relay switch or normally closed interlock or fuse, dual overcurrent protection, guaranteed resistor just in case occur damaging, itself and system can be broken away within the extremely short time, stop to occur the accident of single-phase short circuit or phase fault, further protect the safe handling of equipment;
Described PCB lightning protection wiring board 3 also is provided with grounding ports 8, and described protection circuit 5 is connected in grounding ports 8; Establish ground connection opening 9 on the described housing, described grounding ports 8 is installed on the ground connection opening 9, be connected with ground wire by ground connection opening 9, producing surge or other reasons generation surge overvoltage because of equipment, when surpassing the discharge voltage of this lightning protection device, siganl thunder-proof device can the utmost point in the short time with the earth conducting, powerful surge current is introduced the earth, thereby has protected the equipment that is connected with the siganl thunder-proof device device port not to be compromised;
Also be provided with indicator light on the described housing, be connected with PCB lightning protection wiring board 3; The corresponding protection circuit of described indicator light is established a green LED 13, emitting red light diode 14, when thunder resisting equipment normally uses, green emitting diode 13 is bright, when this thunder resisting equipment wears out or can not normally use, emitting red light diode 14 is bright, be convenient for people to the clear abort situation of knowing, on-call maintenance is changed.
More than disclosed only be embodiment of the present utility model; but; the utility model is not limited thereto; any be familiar with the art the technical staff in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion by described protection range with claim.
Claims (5)
1. novel control siganl thunder-proof device, it is characterized in that: comprise housing, PCB lightning protection wiring board, described PCB lightning protection wiring board is installed in the housing, inlet wire port, device port are established in the setting of described PCB lightning protection wiring board, between described inlet wire port and the device port protection circuit is set, described PCB lightning protection wiring board also is provided with grounding ports, and described protection circuit is connected in grounding ports; Described protection circuit also connects tripper is set, described housing is established the inlet wire opening, described inlet wire port is installed on the inlet wire opening, described housing equipment opening, described device port is installed on the equipment opening, establish the ground connection opening on the described housing, described grounding ports is installed on the ground connection opening, and described inlet wire port, device port are standard D485 interface; Heat is set on the described housing breaks away from member, also be provided with indicator light on the described housing, be connected with PCB lightning protection wiring board.
2. a kind of novel control siganl thunder-proof device according to claim 1, it is characterized in that: described tripper is air switch or relay switch or normally closed interlock or fuse.
3. a kind of novel control siganl thunder-proof device according to claim 1, it is characterized in that: described protection circuit is the combination of gas discharge tube or piezo-resistance or transient voltage suppressor or solid discharging tube or discharge air-gap or said elements.
4. a kind of novel control siganl thunder-proof device according to claim 1, it is characterized in that: described housing selects flame-retardant PBT material or shielded metal to make.
5. a kind of novel control siganl thunder-proof device according to claim 1, it is characterized in that: the corresponding protection circuit of described indicator light is established a green LED, emitting red light diode, when thunder resisting equipment normally uses, the green emitting diode is bright, when this thunder resisting equipment wore out or can not normally use, the emitting red light diode was bright.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494396 CN202888822U (en) | 2012-09-25 | 2012-09-25 | A novel control signal lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494396 CN202888822U (en) | 2012-09-25 | 2012-09-25 | A novel control signal lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888822U true CN202888822U (en) | 2013-04-17 |
Family
ID=48080212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494396 Expired - Fee Related CN202888822U (en) | 2012-09-25 | 2012-09-25 | A novel control signal lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888822U (en) |
-
2012
- 2012-09-25 CN CN 201220494396 patent/CN202888822U/en not_active Expired - Fee Related
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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: 20130417 Termination date: 20130925 |