CN204390825U - A kind of novel miniaturized lightning protection device - Google Patents
A kind of novel miniaturized lightning protection device Download PDFInfo
- Publication number
- CN204390825U CN204390825U CN201520143391.2U CN201520143391U CN204390825U CN 204390825 U CN204390825 U CN 204390825U CN 201520143391 U CN201520143391 U CN 201520143391U CN 204390825 U CN204390825 U CN 204390825U
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- Prior art keywords
- chamber
- base
- protection device
- lightning protection
- pin
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- 239000000463 material Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical group 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model relates to anti-thunder technical field, be specifically related to a kind of novel miniaturized lightning protection device, comprise base, described base is the cuboid of upper opening, described chassis interior is provided with three pieces of plate washers, chassis interior is made to define chamber one, chamber two, chamber three, chamber four or four chambers, described chamber one, chamber three, pressure sensitive component is equipped with in chamber four chamber, gas discharge tube assembly is provided with in described chamber two, the upper cover matched with base openings is established above pressure sensitive component, base is provided with button hole, on cover the dropout sheet being provided with and matching with button hole.A kind of novel miniaturized lightning protection device of the utility model, its overall structure is simple, practical and convenient, has wide range of applications.
Description
Technical field
The utility model relates to anti-thunder technical field, particularly a kind of novel miniaturized lightning protection device.
Background technology
Lightning-protection module is also lightning arrester, and the two structure & working mechanism is identical.The most simply, the most original lightning arrester is a kind of equipment preventing being struck by lightning being connected between wire and ground, usually in parallel with protected equipment.Lightning arrester effectively can protect power equipment, once there is abnormal voltage, lightning arrester generation effect, plays a protective role.When protected equipment runs under normal working voltage, lightning arrester can not produce effect, concerning ground, be considered as open circuit.Once there is high voltage, and jeopardize protected apparatus insulated time, lightning arrester is action immediately, by high-voltage impact conduct current the earth, thus deboost amplitude, protection insulation of electrical installation.After having served as loss of voltage, lightning arrester restores to the original state rapidly, enables system normal power supply.The Main Function of lightning arrester is the effect by parallel spark gap or nonlinear resistance, cuts width, reduces overvoltage value suffered by protected equipment, thus reach the effect of protection power equipment to invasion flow waves.Lightning arrester not only can be used to protection air high voltage, also can be used to fence operation high voltage.If there is thunderstorm weather, lightning flashes and thunder rumbles just there will be high voltage, and power equipment is just likely dangerous, and now lightning arrester will work, and protection power equipment is from infringement.The maximum effect of lightning arrester is also most important effect is exactly that over-voltage is to protect electric equipment.Lightning arrester makes lightning current flow into the earth, and make electric equipment not produce a kind of device of high pressure, main Types has tube type arrester, valve-type arrester and zinc oxide arrester etc.The main operational principle of every type lightning arrester is different, but their work essence is identical, is all to protect equipment of having put to be without prejudice.
Impact by lightning overvoltage, switching overvoltage, public temporary overvoltage frequently and damage equipment, the fields such as lightning protection device is extensively used in industry, building industry, communication industry is avoided in order to protect the various electric equipments in electric power system.Conventional lightning protection device is module and guide rails assembling mode, the general volume of module is bigger than normal, guide rails assembling also necessarily requires equipment to have enough spaces to be held, and is often limited to bulk, can better given play to the various safeguard procedures of lightning protection device itself when installation is taken into account in complete machine installing.More effectively and reasonably can carry out simple and easy PCB grafting that is quick, stable performance according to the equipment of client self after the guide rails assembling mode that change is conventional to install.
Utility model content
Goal of the invention of the present utility model is: for prior art Problems existing, provides a kind of novel miniaturized lightning protection device.
To achieve these goals, the technical solution adopted in the utility model is: a kind of novel miniaturized lightning protection device, comprise base, described base is the cuboid of upper opening, described chassis interior is provided with three pieces of plate washers, chassis interior is made to define chamber one, chamber two, chamber three, chamber four or four chambers, described chamber one, chamber three, pressure sensitive component is equipped with in chamber four chamber, gas discharge tube assembly is provided with in described chamber two, the upper cover matched with base openings is provided with above pressure sensitive component, base is provided with button hole, on cover the dropout sheet being provided with and matching with button hole.
As preferred version of the present utility model, described base is plastic material.
As preferred version of the present utility model, described upper cover is plastic material.
As preferred version of the present utility model, described gas discharge tube assembly is provided with three pins, be respectively L, N, PE pin, connect pure piezo-resistance between described L and N pin, the piezo-resistance between L and PE pin, N and PE pin is connected with gas discharge tube assembly.
The full name of above-mentioned piezo-resistance is metal oxide piezo-resistance (Metal oxide varistor; MOV): the metal-oxide semiconductor (MOS) nonlinear resistance taking zinc oxide as main component; when the voltage being added in resistance two ends is less than pressure sensitive voltage; piezo-resistance is high-impedance state; if be connected in parallel on circuit, this valve block is off state; When the voltage being added in piezo-resistance two ends is greater than pressure sensitive voltage, piezo-resistance will puncture, and presents low resistance, even close to short-circuit condition.This breakdown state of piezo-resistance can be recovered, and after the voltage higher than pressure sensitive voltage is cancelled, it recovers high-impedance state again.When power line is struck by lightning, the high voltage of lightning wave makes piezo-resistance puncture, and lightning current flows into the earth by piezo-resistance, and the class voltage on power line is clamped in safe range.
Advantage: switching voltage wide ranges: 6V ~ 1.5KV, reaction speed fast (25ns), residual voltage low (can reach the safe operating voltage of terminal equipment), through-current capacity large (2KA/cm2), without afterflow, the life-span is long.
Shortcoming: easily aging, after action several times, leakage current can increase, thus causes piezo-resistance overheated, finally causes ageing failure.
Above-mentioned gas discharge tube (Gas discharge tube, GDT): be a kind of pottery or glass packaging, fill with the inert gas of certain pressure (as argon gas) in pipe again, the protection component of switching mode, have two electrodes and three electrodes, two kinds of structures.When electric field strength reach puncture inert gas intensity time, just cause gap discharge, thus restriction interpolar voltage.
Advantage: through-current capacity is large, and volume is little;
Shortcoming: the response time is long, has afterflow.
Operation principle:: L-N adopts pure piezo-resistance, and L-PE, N-PE adopt piezo-resistance series winding gas discharge tube, and differential mode (L-N) adopts the mode of pure pressure-sensitive protection, and residual voltage is low, and the response time is fast; Common mode (L-PE, N-PE) adopts pressure-sensitive collaborating to put the mode of pipe, without leakage current, without afterflow.MOV can generate heat when losing efficacy, and persistent fever can cause security incident, so for the shortcoming of MOV, devise thermal release device, thermal release device adopts the mode of mechanical trip, by dropout sheet with eutectic welding tin welding on chip body.This cognition heating when chip failure, heating temp reaches the fusion temperature of scolding tin, melts soldering tin, and dropout sheet flicks, and disconnects electrical network smoothly, and chip no longer continues to generate heat and reaches the object of protection safety.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: its overall structure is simple, practical and convenient, has wide range of applications.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the utility model structure.
Fig. 2 is fundamental diagram of the present utility model.
Mark in figure: 1-base, 2-plate washer, 3-gas discharge tube assembly, 4-pressure sensitive component, 6-upper cover, 7-chamber one, 8-chamber two, 9-chamber three, 10-chamber four, 12-pin, 13-button hole, 14-dropout sheet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
A kind of novel miniaturized lightning protection device, comprise base 1, described base 1 is the cuboid of upper opening, described base 1 inside is provided with three pieces of plate washers 2, base 1 inside is made to define chamber 1, chamber 28, chamber 39, chamber 4 10 4 chambers, pressure sensitive component 4 is equipped with in described chamber 1, chamber 39, chamber 4 10 chamber, gas discharge tube assembly 3 is provided with in described chamber 28, the upper cover 6 matched with base 1 opening is provided with above pressure sensitive component 4, base 1 is provided with button hole 13, upper cover 6 is provided with the dropout sheet 14 matched with button hole 13.Described gas discharge tube assembly 3 is provided with three pins 12, is respectively L, N, PE pin, the piezo-resistance 4 connected between described L and N pin between pure piezo-resistance 4, L and PE pin, N and PE pin is connected with gas discharge tube assembly 3.
embodiment 2
A kind of novel miniaturized lightning protection device, comprise base 1, described base 1 is the cuboid of upper opening, described base 1 inside is provided with three pieces of plate washers 2, base 1 inside is made to define chamber 1, chamber 28, chamber 39, chamber 4 10 4 chambers, pressure sensitive component 4 is equipped with in described chamber 1, chamber 39, chamber 4 10 chamber, gas discharge tube assembly 3 is provided with in described chamber 28, the upper cover 6 matched with base 1 opening is provided with above pressure sensitive component 4, base 1 is provided with button hole 13, upper cover 6 is provided with the dropout sheet 14 matched with button hole 13.Described base 1 is plastic material.Described gas discharge tube assembly 3 is provided with three pins 12, is respectively L, N, PE pin, the piezo-resistance 4 connected between described L and N pin between pure piezo-resistance 4, L and PE pin, N and PE pin is connected with gas discharge tube assembly 3.
embodiment 3
A kind of novel miniaturized lightning protection device, comprise base 1, described base 1 is the cuboid of upper opening, described base 1 inside is provided with three pieces of plate washers 2, base 1 inside is made to define chamber 1, chamber 28, chamber 39, chamber 4 10 4 chambers, pressure sensitive component 4 is equipped with in described chamber 1, chamber 39, chamber 4 10 chamber, gas discharge tube assembly 3 is provided with in described chamber 28, the upper cover 6 matched with base 1 opening is provided with above pressure sensitive component 4, base 1 is provided with button hole 13, upper cover 6 is provided with the dropout sheet 14 matched with button hole 13.Described base 1 is plastic material.Described upper cover 6 is plastic material.Described gas discharge tube assembly 3 is provided with three pins 12, is respectively L, N, PE pin, the piezo-resistance 4 connected between described L and N pin between pure piezo-resistance 4, L and PE pin, N and PE pin is connected with gas discharge tube assembly 3.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a novel miniaturized lightning protection device, it is characterized in that: comprise base (1), the cuboid that described base (1) is upper opening, described base (1) inside is provided with three pieces of plate washers (2), base (1) inside is made to define chamber one (7), chamber two (8), chamber three (9), chamber four (10) four chambers, described chamber one (7), chamber three (9), pressure sensitive component (4) is equipped with in chamber four (10) chamber, gas discharge tube assembly (3) is provided with in described chamber two (8), the upper cover (6) that pressure sensitive component (4) top matches with base (1) opening, base (1) is provided with button hole (9), upper cover (6) is provided with the dropout sheet (8) matched with button hole (9).
2. a kind of novel miniaturized lightning protection device according to claim 1, is characterized in that: described base (1) is plastic material.
3. a kind of novel miniaturized lightning protection device according to claim 1, is characterized in that: described upper cover (6) is plastic material.
4. a kind of novel miniaturized lightning protection device according to claim 1, it is characterized in that: described gas discharge tube assembly (3) is provided with three pins (12), be respectively L, N, PE pin, connect pure piezo-resistance (4) between described L and N pin, the piezo-resistance (4) between L and PE pin, N and PE pin is connected with gas discharge tube assembly (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143391.2U CN204390825U (en) | 2015-03-13 | 2015-03-13 | A kind of novel miniaturized lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143391.2U CN204390825U (en) | 2015-03-13 | 2015-03-13 | A kind of novel miniaturized lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390825U true CN204390825U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520143391.2U Expired - Fee Related CN204390825U (en) | 2015-03-13 | 2015-03-13 | A kind of novel miniaturized lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154924A (en) * | 2016-08-05 | 2016-11-23 | 成都兴业雷安电子有限公司 | A kind of equipment box lightning protection is for power utilization monitoring device |
-
2015
- 2015-03-13 CN CN201520143391.2U patent/CN204390825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154924A (en) * | 2016-08-05 | 2016-11-23 | 成都兴业雷安电子有限公司 | A kind of equipment box lightning protection is for power utilization monitoring 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 |
Granted publication date: 20150610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |