CN205231723U - Equipment of protection is hit in lightning protection - Google Patents
Equipment of protection is hit in lightning protection Download PDFInfo
- Publication number
- CN205231723U CN205231723U CN201521092176.0U CN201521092176U CN205231723U CN 205231723 U CN205231723 U CN 205231723U CN 201521092176 U CN201521092176 U CN 201521092176U CN 205231723 U CN205231723 U CN 205231723U
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- CN
- China
- Prior art keywords
- protection
- equipment
- grounding system
- metal shell
- metal casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides an equipment of protection is hit in lightning protection, includes metal casing, sets up circuit board in metal casing, a ground system who is connected with the metal casing electricity, the 2nd ground system of the electric connection of and gate board, a ground system and the 2nd ground system alternate segregation are independent. Beneficial effect: divide the inside protectorate of circuit board and metal casing division, when external circuit was struck by lightning, lightning current conducted through conducting to on the circuit board conducting wire, and the 2nd ground system through between circuit board and the protective earthing directly flows into the earth. At this in -process, not through the metal casing, reduced maintainer and at the service equipment in -process, received the risk that lightning current endangers.
Description
Technical field
The utility model relates to equipment lightning protection field, is specifically related to a kind of equipment of anti-lightning strike protection.
Background technology
Major part electric equipment particularly PSTN communication equipment, all adopts device interior wiring board to be electrically connected with metal shell, then protects thunderbolt by the mode of metal shell ground connection.During thunderbolt, if attendant touches metal chassis, this ground protection mode just cannot ensure the safety of attendant completely.
Utility model content
Subject to device housings thunderbolt conductivity issues to overcome above-mentioned attendant, the utility model provides a kind of equipment of anti-lightning strike protection.
A kind of equipment of anti-lightning strike protection; comprise metal shell; be arranged on the wiring board in metal shell, the first grounding system be electrically connected with metal shell, the second grounding system of being electrically connected with wiring board, described first grounding system and the second grounding system are separated from each other independence.
Described wiring board comprises several cell boards, and cell board described in several is equipped with protecting field tie point, and described protecting field tie point is electrically connected to each other by wire.
Described first grounding system comprises the first earthing rod be electrically connected with metal shell, and described second grounding system comprises the second earthing rod, and described first earthing rod and the second earthing rod to be arranged on metal shell and separate insulation.
Beneficial effect: wiring board internal protection is separated with metal shell; when external circuit is struck by lightning; thunder-strike current is conducted through conducting wire and has been transmitted on wiring board; by the second grounding system between wiring board and protective earthing; flow directly into the earth, in this process, not through metal chassis; reduce attendant in service equipment process, be subject to the risk of thunder-strike current harm.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present utility model.
1 metal shell, 2 wiring boards, 21 cell boards, 22 protecting field tie points, 3 first grounding systems, 31 first earthing rods, 4 second grounding systems, 41 second earthing rods.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1; a kind of PSTN communication equipment of anti-lightning strike protection; comprise metal shell 1; be arranged on the PSTN wiring board 2 in metal shell 1, the first grounding system 3 be electrically connected with metal shell 1, the second grounding system 4 of being electrically connected with PSTN wiring board 2, described first grounding system 3 and the second grounding system 4 are separated from each other independence.PSTN wiring board 2 internal protection is separated with metal shell 1; when external circuit is struck by lightning; thunder-strike current is conducted through conducting wire and has been transmitted on PSTN wiring board 2, by the second grounding system 4 between PSTN wiring board 2 and protective earthing, flows directly into the earth.In this process, not through metal chassis, reduce attendant in service equipment process, be subject to the risk of thunder-strike current harm.
Described PSTN wiring board 2 comprises several cell boards 21, and described in several, cell board 21 is equipped with protecting field tie point 22, and described protecting field tie point 22 is electrically connected to each other by wire, makes unit plate 21 all by protecting field tie point 22 grounding connection.
Described first grounding system 3 comprises the first earthing rod 31 be electrically connected with metal shell 1, described second grounding system 4 comprises the second earthing rod 41, described first earthing rod 31 and the second earthing rod 41 to be arranged on metal shell 1 and separate insulation, optimize the first grounding system 3 and the second grounding system 4, be beneficial to the firm of earthing rod.
Above; be only preferred embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed in protection range of the present utility model.Therefore, the protection range that protection range of the present utility model should define with claim is as the criterion.
Claims (3)
1. the equipment of an anti-lightning strike protection; it is characterized in that: comprise metal shell (1); be arranged on the wiring board (2) in metal shell (1), the first grounding system (3) be electrically connected with metal shell (1), the second grounding system (4) of being electrically connected with wiring board (2), described first grounding system (3) and the second grounding system (4) are separated from each other independence.
2. the equipment of a kind of anti-lightning strike protection according to claim 1; it is characterized in that: described wiring board (2) comprises several cell boards (21); cell board described in several (21) is equipped with protecting field tie point (22), and described protecting field tie point (22) is electrically connected to each other by wire.
3. the equipment of a kind of anti-lightning strike protection according to claim 1; it is characterized in that: described first grounding system (3) comprises the first earthing rod (31) be electrically connected with metal shell (1); described second grounding system (4) comprises the second earthing rod (41), and described first earthing rod (31) and the second earthing rod (41) are arranged at metal shell (1) and go up and separate insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092176.0U CN205231723U (en) | 2015-12-25 | 2015-12-25 | Equipment of protection is hit in lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092176.0U CN205231723U (en) | 2015-12-25 | 2015-12-25 | Equipment of protection is hit in lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205231723U true CN205231723U (en) | 2016-05-11 |
Family
ID=55906768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521092176.0U Active CN205231723U (en) | 2015-12-25 | 2015-12-25 | Equipment of protection is hit in lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205231723U (en) |
-
2015
- 2015-12-25 CN CN201521092176.0U patent/CN205231723U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |