CN205377277U - Anti lightning strike protection component - Google Patents
Anti lightning strike protection component Download PDFInfo
- Publication number
- CN205377277U CN205377277U CN201521097766.2U CN201521097766U CN205377277U CN 205377277 U CN205377277 U CN 205377277U CN 201521097766 U CN201521097766 U CN 201521097766U CN 205377277 U CN205377277 U CN 205377277U
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- insulator
- protection structure
- lightning
- melt
- metal
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Abstract
The utility model discloses an anti lightning strike protection component, the insulator of connecting at two electrodes at fuse -element both ends, connect and bear simultaneously two electrodes including fuse -element, electricity, insulator is equipped with at least one metal lightning protection structure and is used for accepting the electric charge deposit. When anti lightning strike protection component both ends appearance thunderbolt voltage, thunderbolt voltage can puncture the air in the twinkling of an eye makes electric charge deposit to metal lightning protection structure to make the greatly reduced of electric current in the twinkling of an eye who passes through on the protecting component fuse -element, protection protecting component fuse -element is not fused under the thunderbolt state.
Description
Technical field
This utility model belongs to a kind of protection element, is specifically related to the over-current protecting element structure that a kind of anti-lightning ability is strong.
Background technology
Overcurrent protection element of the prior art; especially the over-current protecting element that volume is small is all use the mode improving Surge handling capability to improve anti-lightning effect; but improve Surge handling capability to reach capacity in prior art; when particularly volume is little, current specification is little, improve Surge handling capability can and the 2In fusing time of product produce Serious conflicts.Such as, in Fig. 1, length current specification within 10mm is the miniature overcurrent protection element of 1A; maximum can only achieve 1KV anti-lightning effect; in order to improve its anti-lightning ability; fuse-link is changed into the form of coiling; it is only capable of anti-lightning ability is brought up to 1.5KV; and its 2In fusing time adds one times, reduce the performance of its quick fuse, and the anti-lightning ability of this product still can not meet the specific demand of current LED outdoor illumination field.
Therefore, it is necessary to a kind of new technical scheme is to solve the problems referred to above.
Utility model content
For the problem protecting element anti-lightning performance to improve in prior art, this utility model provides a kind of protection against lightning strikes element, and its simple in construction, anti-lightning ability is strong.
For realizing above-mentioned utility model purpose, this utility model can adopt the following technical scheme that
A kind of protection against lightning strikes element, including melt, is connected electrically in two electrodes at melt two ends, is simultaneously connected with and carries the insulator of two electrodes；Described insulator is provided with at least one metal lightning protection structure；And each metal lightning protection structure all does not produce to electrically connect with described electrode and melt.
Compared with prior art, protection against lightning strikes element of the present utility model is provided with metal lightning protection structure.Under thunderbolt state, high voltage will puncture the characteristic of air or insulator; when thunderbolt voltage occur in protection against lightning strikes element two ends; thunderbolt voltage can puncture air moment makes charge deposition to metal lightning protection structure; so that the immediate current passed through on protection element melt is substantially reduced, protection protection element melt is not blown under thunderbolt state.Owing to thunderbolt voltage is an alternating voltage, therefore on metal lightning protection structure, the electric charge of deposition can present and is accumulated to consumption, consumes and arrive the repetitive process assembled again, until thunder-strike current disappearance.Thus well element is protected in protection, improve the anti-lightning performance of protection element.
Further, described metal lightning protection structure is metallic film or sheet metal.
Further, described insulator is provided with host cavity, and two electrodes lay respectively at the both sides of this host cavity, and described melt is arranged in this host cavity.
Further, described metal lightning protection structure is attached on the inwall in insulator host cavity.
Described metal lightning protection structure is arranged on the surrounding inwall of this insulator host cavity, and each inwall is provided with two independent metal lightning protection structures, arranges eight metal lightning protection structures altogether.
Or, described metal lightning protection structure is attached on the outer wall of insulator.
Further, described melt is carried on the end face of insulator, and described end face is additionally provided with the insulating protective layer covering melt；And lightning protection structure is arranged on substrate side surfaces two ends and is not provided with the region of electrode；
Or described melt is carried on the end face of insulator；And lightning protection structure is similarly disposed on substrate top surface, described end face is additionally provided with the insulating protective layer covering melt and lightning protection structure.
Further, described metal lightning protection structure is arranged on insulator by the mode printed and/or electroplate and/or attach.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of protection element of the prior art；
Fig. 2 is the sectional view of the miniature protection against lightning strikes element of this utility model first embodiment；
Fig. 3 is the sectional view of the miniature protection against lightning strikes element of this utility model the second embodiment；
Fig. 4 is the schematic diagram of this utility model the 3rd miniature protection against lightning strikes element of embodiment；
Fig. 5 is the schematic diagram of this utility model the 4th miniature protection against lightning strikes element of embodiment；
Wherein, the parts that each label is corresponding are: 1-insulator, 2-melt, 3-electrode, 4-scolding tin, 5-metal lightning protection structure, 6-insulated substrate, 7-insulating protective layer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, the amendment of the various equivalent form of values of the present utility model is all fallen within the application claims limited range by those skilled in the art.
Embodiment one:
As in figure 2 it is shown, be a kind of miniature protection against lightning strikes element, comprising insulator 1, melt 2, electrode 3, scolding tin 4, metal lightning protection structure 5, insulator 1 is tubulose, and profile and internal host cavity are cuboid, and electrode 3 is for being nested with square metal cap thereon.Being arranged on insulator 1 two ends, the two ends of melt 2 are fixed in the middle of two end electrodes 3 by scolding tin 4 and are formed with two end electrodes 3 and electrically connect, in the unsettled host cavity being arranged on insulator 1 of the fusible portion of melt 2.
In the host cavity of insulator 1, be additionally provided with at least one metal lightning protection structure 5 close to the place of scolding tin 4, in the present embodiment in host cavity four face the wall and meditate on be provided with metal lightning protection structure 5, be namely provided with 8 metal lightning protection structures 5 in whole protection element.Metal lightning protection structure 5 is thin metal sheet or metallic film, it the present embodiment is copper foil tape, make the square piece being of a size of 2mm*2mm, insulator 1 medial wall adopt in advance micromachine jig arm opposite attach two panels copper foil tape, micromachine jig arm stretches between insulation tube inwall 1.5mm～2mm, opens machinery jig arm and two panels copper foil tape is attached on insulation tube inwall.
Metal lightning protection structure 5 does not contact with electrode 3 and scolding tin 4, and lightning protection structure does not also contact with melt 2, and the setting of such lightning protection structure does not affect the quick fuse performance of whole protection element.Also do not contact respectively close between the two panels metal lightning protection structure 5 of two termination electrodes, otherwise when scolding tin 4 is too much, in irregular shape or lightning protection structure is touched scolding tin 4 by maloperation, electrical connection is formed between two end electrodes 3, such melt 2 just performs practically no function, it is impossible to reach the effect of fusing during overcurrent.
In normal state, electric current flows through melt 2 by electrode 3, and each metal lightning protection structure 5 is in separate state, it does not have electric current flows through.Under thunderbolt state, whole protection element two ends produce instant high-voltage, and without metal lightning protection structure 5, melt 2 is abnormal fusing under instantaneous pressure, is unable to bear thunderbolt energy.And the present embodiment is provided with metal lightning protection structure 5, thunderbolt voltage can puncture air moment makes charge deposition to metal lightning protection structure 5, so that the immediate current passed through on melt 2 is substantially reduced, namely metal lightning protection structure 5 has shared thunderbolt of a part of moment energy, it is prevented that the abnormal fusing of melt 2.Owing to thunderbolt voltage is an alternating voltage, therefore on metal lightning protection structure 5, the electric charge of deposition can present and is accumulated to consumption, consumes and arrive the repetitive process assembled again, until thunder-strike current disappears, improves the anti-lightning performance protecting element.Such as, in the present embodiment, volume is the protection element of 6.1*2.5*2.5mm, when not changing its 2In fusing time so that it is anti-lightning performance is increased to 2KV by 1KV.
Although it should be noted that, what provide in the present embodiment is the more small miniature protection against lightning strikes element of physical dimension, but mutually isostructural larger-size protection against lightning strikes element can equally be well applied to the technical solution of the utility model, does not repeat them here.
Embodiment two:
As it is shown on figure 3, with embodiment one the difference is that, metal lightning protection structure 5 is metallic film/or thin metal sheet, by modes such as printing, plating, attachings, is arranged on the outer wall of insulation tube 1 near the place of two end electrodes 3, does not contact with two end electrodes 3.Metal lightning protection structure 5 is preferably used plating mode and makes Copper thin film, or makes Ag films with mode of printing, or attaches copper foil tape.
In both examples above; metal lightning protection structure 5 is alternatively disk or other shapes; be alternatively be arranged on insulation tube 1 two ends inwall or outer wall, circular near electrode 3; but ensure not contact respectively close to the metal lightning protection structure 5 of two end electrodes 3, be otherwise likely to protection element fusing performance is impacted.
In both examples above, insulation tube is alternatively cylindrical duct or polygonal tube, but inwall and outer wall have platform to be easier to arrange lightning protection structure.
Embodiment three:
As shown in Figure 4, a kind of miniature protection against lightning strikes element of chip, including insulated substrate 6, it is carried on the melt 2 on insulated substrate end face and is positioned at the electrode 3 at insulated substrate two ends, melt 2 is formed between two end electrodes and with two end electrodes 3 and electrically connects, insulating protective layer 7 is covered on melt 2, do not cover electrode 3, metal lightning protection structure 5 is arranged on substrate side surfaces two ends and is not provided with the region of electrode, place near electrode, not with electrode or fuse wire contacts, do not covered by insulating protective layer 7, it is separately positioned on and does not also contact with each other between the lightning protection structure of two end electrodes.Metal lightning protection structure 5 is metallic film/or thin metal sheet, is arranged on insulated substrate 6 by modes such as printing, plating, attachings.When the high pressure that is struck by lightning is added in protection element two ends, high voltage transient punctures air makes charge deposition to metal lightning protection structure 5, it is prevented that the abnormal fusing of melt 2.
Should be noted that; although what provide in the present embodiment is the more small plate mini-type protection against lightning strikes element of physical dimension; but mutually isostructural larger-size chip protection against lightning strikes element can equally be well applied to the technical solution of the utility model, does not repeat them here.
Embodiment four:
As shown in Figure 5; different with embodiment three it is; metal lightning protection structure 5 is arranged on the end face of insulated substrate 6; melt 2 is also disposed on the end face of insulated substrate 6 near the place of electrode; simultaneously; melt 2 and metal lightning protection structure 5 are all covered by insulating protective layer 7, and metal lightning protection structure 5 does not contact melt and electrode.The metal lightning protection structure 5 arranged in the present embodiment also can reach certain anti-lightning effect, shares thunderbolt of a part of moment energy, but due to insulating protective layer than air insulating properties more preferably, hinder the movement of electric charge, so the effect of anti-lightning is not as embodiment three.
Claims (9)
1. a protection against lightning strikes element, including melt, is connected electrically in two electrodes at melt two ends, is simultaneously connected with and carries the insulator of two electrodes；It is characterized in that: described insulator is provided with at least one metal lightning protection structure；And each metal lightning protection structure all does not produce to electrically connect with described electrode and melt.
2. protection against lightning strikes element according to claim 1, it is characterised in that: described metal lightning protection structure is metallic film or sheet metal.
3. protection against lightning strikes element according to claim 1 and 2, it is characterised in that: described insulator is provided with host cavity, and two electrodes lay respectively at the both sides of this host cavity, and described melt is arranged in this host cavity.
4. protection against lightning strikes element according to claim 3, it is characterised in that: described metal lightning protection structure is attached on the inwall in insulator host cavity.
5. protection against lightning strikes element according to claim 4, it is characterised in that: described metal lightning protection structure is arranged on the surrounding inwall of this insulator host cavity, and each inwall is provided with two independent metal lightning protection structures, arranges eight metal lightning protection structures altogether.
6. protection against lightning strikes element according to claim 3, it is characterised in that: described metal lightning protection structure is attached on the outer wall of insulator.
7. protection against lightning strikes element according to claim 1 and 2, it is characterised in that: described melt is carried on the end face of insulator, and described end face is additionally provided with the insulating protective layer covering melt；And lightning protection structure is arranged on substrate side surfaces two ends and is not provided with the region of electrode.
8. protection against lightning strikes element according to claim 1 and 2, it is characterised in that: described melt is carried on the end face of insulator；And lightning protection structure is similarly disposed on substrate top surface, described end face is additionally provided with the insulating protective layer covering melt and lightning protection structure.
9. protection against lightning strikes element according to claim 1 and 2, it is characterised in that: described metal lightning protection structure is arranged on insulator by the mode printed and/or electroplate and/or attach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097766.2U CN205377277U (en) | 2015-12-24 | 2015-12-24 | Anti lightning strike protection component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097766.2U CN205377277U (en) | 2015-12-24 | 2015-12-24 | Anti lightning strike protection component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377277U true CN205377277U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521097766.2U Active CN205377277U (en) | 2015-12-24 | 2015-12-24 | Anti lightning strike protection component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205377277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610141A (en) * | 2015-12-24 | 2016-05-25 | 南京萨特科技发展有限公司 | Lightning-stroke-resisting protective element |
-
2015
- 2015-12-24 CN CN201521097766.2U patent/CN205377277U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610141A (en) * | 2015-12-24 | 2016-05-25 | 南京萨特科技发展有限公司 | Lightning-stroke-resisting protective element |
| CN105610141B (en) * | 2015-12-24 | 2018-09-25 | 南京萨特科技发展有限公司 | Protection against lightning strikes element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |