CN201975780U - Box for preventing potential counterattack - Google Patents
Box for preventing potential counterattack Download PDFInfo
- Publication number
- CN201975780U CN201975780U CN2011200658287U CN201120065828U CN201975780U CN 201975780 U CN201975780 U CN 201975780U CN 2011200658287 U CN2011200658287 U CN 2011200658287U CN 201120065828 U CN201120065828 U CN 201120065828U CN 201975780 U CN201975780 U CN 201975780U
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- CN
- China
- Prior art keywords
- modules
- frequency suppressing
- lightning protection
- frequency rejection
- suppressing modules
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- Expired - Fee Related
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Abstract
A box for preventing potential counterattack comprises a box body, a primary high-frequency rejection module and secondary high-frequency rejection modules, and is characterized in that the primary high-frequency rejection module is arranged in the box body, one end of the primary high-frequency rejection module is connected with at least two secondary high-frequency rejection modules which are mutually connected in parallel, the other end of the primary high-frequency rejection module is grounded, and the secondary high-frequency rejection modules are respectively connected with a ground wire of an external lightning protection device. The box provided by the utility model has a simple structure, is easy to manufacture, is safe and reliable, is cost-saving, has wide scope of application, is simple to install, can effectively prevent ground potential from counterattacking lightning protection equipment, realizes concurrent grounding of a plurality of similar lightning protection devices, and is suitable for industrialized production.
Description
Technical field
The utility model relates to a kind of lightning protection device, and the surge earthing device is prevented in particularly a kind of lightning protection.
Background technology
Along with continuous development along with national economy, the quick raising of modernization level, under the guide that using IT to propel industrialization, the application of various information equipment, electronic computer, precision instrument, data networking equipment more and more widely, more and more intensive, this kind equipment general work voltage is low, withstand voltage level is low, sensitiveness is high, antijamming capability is low, thereby very easily is subjected to the harm of lightning current pulse.In this case, adopt the anti-surge device of lightning protection to come protection equipment to become a kind of main flow.
In a modern building; there is the very big precision equipment of operating voltage difference; the starting resistor of the lightning protection device of An Zhuaning also has nothing in common with each other with the lightning current size of releasing in the above; and in modern shocking preventing technology and the reality; generally take S shape one point earth; just the ground wire of different operating voltage lightning protection device all is connected together, like this, and when lightning protection device work or certain have leakage current above the lightning protection device; there is certain voltage difference between them and causes device damage; in addition, adopt above-mentioned earthing mode, when earth potential is higher; can form direct counterattack to lightning protection device; when serious, puncture the piezo-resistance of lightning protection device, cause protected equipment damage.
The utility model content
The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, easy to manufacture, can effectively intercept earth potential to the counterattack of thunder resisting equipment, realize the anti-current potential counterattack case of a plurality of similar lightning protection device concurrent ground connection.The lightning protection device of better protection equipment.
The technical scheme that its technical problem that solves the utility model adopts is as follows:
A kind of anti-current potential counterattack case, comprise casing, main high-frequency suppressing modules, inferior high-frequency suppressing modules, it is characterized in that: described main high-frequency suppressing modules is installed in the described casing, and the one end is connected other end ground connection with at least 2 inferior high-frequency suppressing modules parallel with one another; Described time high-frequency suppressing modules is connected with the ground wire of peripheral hardware lightning protection device respectively.
In the utility model, described main high-frequency suppressing modules and described high-frequency suppressing modules are formed by winding coil.
In the utility model, described time high-frequency suppressing modules quantity is 4.
The beneficial effects of the utility model:
1, existing universal demand shared grounding, because the ground wire character of ground connection is inequality, generally can not concurrent, but just do not require to cause the profligacy of wire rod the anti-current potential counterattack of the utility model case during concurrent with many main earth connections, just can concurrent, and they are not disturbed mutually, and only use a main earth connection, provide cost savings.
2, in the time of can preventing effectively that earth potential is higher to the counterattack of lightning protection device.
3, the scope of application is extensive, installs simple.
4, integrated design, a product can replace a plurality of products.
Description of drawings
Fig. 1. the utility model structural representation
Among the figure: 1, high-frequency suppressing modules 1; 2, high-frequency suppressing modules 2; 3, high-frequency suppressing modules 3; 4, high-frequency suppressing modules 4; 5, high-frequency suppressing modules 5; 6, casing.A, protection ground wire; B, working grounding cable; C, lightning protection ground wire; D, lightning protection ground wire.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.Following embodiment of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make the variation or the change of other different structure form on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
A kind of anti-current potential counterattack case comprises casing 1, main high-frequency suppressing modules 2, inferior high-frequency suppressing modules 3, and described main high-frequency suppressing modules 2 is installed in the described casing 1, and the one end is connected other end ground connection 6 with at least 2 inferior high-frequency suppressing modules 3 parallel with one another; Described time high-frequency suppressing modules 3 is connected with the ground wire 4,5 of peripheral hardware lightning protection device respectively.
In the present embodiment, described main high-frequency suppressing modules 2 is formed by winding coil with described high-frequency suppressing modules 3.
In the present embodiment, described time high-frequency suppressing modules 3 quantity are 4.
Operation principle of the present utility model is sketched in following: the utility model is connected in the lightning-protection system, because the lightning protection device of identical category has identical current potential, therefore, the ground wire concurrent of the lightning protection device of identical category can be connected one high-frequency suppressing modules 3 in the utility model, they are not disturbed mutually, avoid adopting many main earth connections, cause the waste of wire rod, save cost.
In addition, the utility model has adopted main high-frequency suppressing modules 2, can effectively prevent when earth potential is higher counterattack to lightning protection device.
Claims (3)
1. an anti-current potential is strikeed back case, comprise casing, main high-frequency suppressing modules, inferior high-frequency suppressing modules, it is characterized in that: described main high-frequency suppressing modules is installed in the described casing, and the one end is connected other end ground connection with at least 2 inferior high-frequency suppressing modules parallel with one another; Described time high-frequency suppressing modules is connected with the ground wire of peripheral hardware lightning protection device respectively.
2. a kind of anti-current potential counterattack case according to claim 1, it is characterized in that: described main high-frequency suppressing modules and described high-frequency suppressing modules are formed by winding coil.
3. a kind of anti-current potential counterattack case according to claim 1, it is characterized in that: described time high-frequency suppressing modules quantity is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200658287U CN201975780U (en) | 2011-03-14 | 2011-03-14 | Box for preventing potential counterattack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200658287U CN201975780U (en) | 2011-03-14 | 2011-03-14 | Box for preventing potential counterattack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975780U true CN201975780U (en) | 2011-09-14 |
Family
ID=44580878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200658287U Expired - Fee Related CN201975780U (en) | 2011-03-14 | 2011-03-14 | Box for preventing potential counterattack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401045A (en) * | 2019-07-04 | 2019-11-01 | 云南电网有限责任公司丽江供电局 | A kind of route defense sector potential counterattack Special grounding device |
-
2011
- 2011-03-14 CN CN2011200658287U patent/CN201975780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401045A (en) * | 2019-07-04 | 2019-11-01 | 云南电网有限责任公司丽江供电局 | A kind of route defense sector potential counterattack Special grounding device |
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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: 20110914 Termination date: 20170314 |