CN201378483Y - Lightning-protection device for power supplies - Google Patents
Lightning-protection device for power supplies Download PDFInfo
- Publication number
- CN201378483Y CN201378483Y CN200920041429U CN200920041429U CN201378483Y CN 201378483 Y CN201378483 Y CN 201378483Y CN 200920041429 U CN200920041429 U CN 200920041429U CN 200920041429 U CN200920041429 U CN 200920041429U CN 201378483 Y CN201378483 Y CN 201378483Y
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- unidirectional
- weld tabs
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- lightning
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Abstract
The utility model discloses a lightning-protection device for power supplies, which comprises a plurality of piezoresistors, a mounting plate, a plurality of first unidirectional soldering lugs, and a plurality of second unidirectional soldering lugs, wherein the mounting plate is fixed in a wall box of a power supply through a fastener; two rows of first unidirectional soldering lugs are distributed on the mounting plate, and are fixedly connected with the mounting plate through the fastener; the second unidirectional soldering lugs are also arranged in the same position of one of the two rows of the first unidirectional soldering lugs, and are connected with each other by a copper wire in a welding manner; and the two legs of each piezoresistor are welded on the surface of each first unidirectional soldering lug respectively. The utility model has the advantages of small volume, simple structure, low cost, and high security insurance performance, does not need to open hole on a wall box panel in installation to ensure the electromagnetic compatibility performance, adopts the piezoresistors, and has no spark gaps. Moreover, the utility model can directly block lightning overvoltage outside a vehicle body to protect the lightning overvoltage when the power supply is input in the complete vehicle, and can meet the requirements of various power supply modes.
Description
Technical field
The utility model relates to a kind of overvoltage protection, and especially a kind of pre-anti-lightning strike high-tension apparatus for protecting power supply of mobile unit that is applicable to belongs to the over-voltage protection technique field.
Background technology
Natural thunderbolt is divided into direct lightning strike and lightning induction high voltage and Lightning Electromagnetic Pulse radiation (hereinafter to be referred as the induction thunder) two classes, the induction thunder mainly can pass through the thunder and lightning high voltage of the power cable induction of outside vehicle, invades power consumption equipment internal damage power consumption equipment in the vehicle.In order to address this problem and consider the requirement of compatible performance of electromagnetic vehicle and common various powering modes, need in power supply wall box, to be provided with that the volume that is suitable for vehicle-mounted shelter or van is little, simple in structure, high-performance, vehicle wall box lightning protection device cheaply, to guarantee the person and device security.
The utility model content
It is little, simple in structure that the purpose of this utility model provides a kind of volume, and Electro Magnetic Compatibility is good, and can satisfy the lightning protection device of various powering modes.
The utility model is achieved by the following technical programs:
A kind of lightning protection device for electric power comprises several piezo-resistances, mounting panel, several first unidirectional weld tabs, several second unidirectional weld tabs; Described mounting panel is fixed in the power supply wall box by securing member; The described first unidirectional weld tabs is two rows and is distributed on the described mounting panel, the described second unidirectional weld tabs with wherein one arrange first unidirectional weld tabs is overlapping contacts, and fixedly connected with described mounting panel by securing member; The described second unidirectional weld tabs is welded to connect with copper cash each other; Two legs of described piezo-resistance are connected across on the first unidirectional weld tabs that is two row's distributions, are welded to connect with the first unidirectional weld tabs respectively.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid lightning protection device for electric power, the model of wherein said piezo-resistance are MYL1-5/820V.
The utility model volume is little, simple in structure, and cost is low, is guaranteeing to save cost under the prerequisite of good lightning protection properties, and does not need perforate on the wall box panel when installing, and has guaranteed Electro Magnetic Compatibility.The utility model adopts piezo-resistance, does not have spark gap, directly lightning overvoltage is kept off in the car body outside, and the protection of lightning overvoltage has very high safety guarantee performance when realizing the input of car load power supply, can satisfy the requirement of various powering modes.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises several piezo-resistances 1, and insulating mounting plate 2, several first unidirectional weld tabs 3, several second unidirectional weld tabs 4 adopt 3,4 second unidirectional weld tabs 4 of 1,13 first unidirectional weld tabs of 4 piezo-resistances in the present embodiment; The hole 5 that screw passes on the mounting panel 2 is fixed in the power supply wall box; The first unidirectional weld tabs 3 totally two row's tow sides is arranged on the mounting panel 2, totally 8 of first row's tow sides, totally 5 of second row's tow sides; Also be provided with four second unidirectional weld tabs 4, the second unidirectional weld tabs 4 on second row's the same position and be welded to connect with copper cash each other, form and connect end; First unidirectional weld tabs 3, the second unidirectional weld tabs 4 is fixedlyed connected with mounting panel 2 by screw 6, packing ring 7, nut 8.Two legs of 4 piezo-resistances 1 pass on the first unidirectional weld tabs 3 that mounting panel 2 is welded on mounting panel 2 reverse side respectively, and the model of piezo-resistance is selected MYL1-5/820V for use.
The utility model is applicable to four kinds of common powering modes.When be used for the input of one tunnel single-phase civil power and one tunnel single phase machine, two-way single phase machine input, when the single-phase civil power of two-way is imported these three kinds of powering modes, piezo-resistance on the vehicle wall box lightning protection device not and four ends that connect be connected respectively on two phase lines and two zero lines by the first unidirectional weld tabs 3, and connect end ground connection.When being used for one tunnel three-phase mains input powering mode, piezo-resistance not and four ends that connect be connected respectively on three phase lines and the zero line by the first unidirectional weld tabs 3, and connect end ground connection.
Under normal operating voltage, the piezo-resistance value is very big, be equivalent to state of insulation, when thunder and lightning takes place, very high voltage can be produced in the line, under the effect of this HI high impact voltage, it is breakdown that piezo-resistance is low value, be in short-circuit condition, will be able to safety relief because of the lightning current that thunderbolt is sensed inner facility and go into ground, guarantee equipment and personnel's safety.
In addition to the implementation, the utility model can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (2)
1. a lightning protection device for electric power comprises several piezo-resistances, and mounting panel is characterized in that: also comprise several first unidirectional weld tabs, several second unidirectional weld tabs; Described mounting panel is fixed in the power supply wall box by securing member; The described first unidirectional weld tabs is two rows and is distributed on the described mounting panel, the described second unidirectional weld tabs with wherein one arrange first unidirectional weld tabs is overlapping contacts, and fixedly connected with described mounting panel by securing member; The described second unidirectional weld tabs is welded to connect with copper cash each other; Two legs of described piezo-resistance are connected across on the first unidirectional weld tabs that is two row's distributions, are welded to connect with the first unidirectional weld tabs respectively.
2. lightning protection device for electric power as claimed in claim 1 is characterized in that: the model of described piezo-resistance is MYL1-5/820V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920041429U CN201378483Y (en) | 2009-04-01 | 2009-04-01 | Lightning-protection device for power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920041429U CN201378483Y (en) | 2009-04-01 | 2009-04-01 | Lightning-protection device for power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378483Y true CN201378483Y (en) | 2010-01-06 |
Family
ID=41518602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920041429U Expired - Fee Related CN201378483Y (en) | 2009-04-01 | 2009-04-01 | Lightning-protection device for power supplies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378483Y (en) |
-
2009
- 2009-04-01 CN CN200920041429U patent/CN201378483Y/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: 20100106 Termination date: 20120401 |