CN104582383A - Surge protection device with high reliability and high protection level - Google Patents
Surge protection device with high reliability and high protection level Download PDFInfo
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- CN104582383A CN104582383A CN201510016592.0A CN201510016592A CN104582383A CN 104582383 A CN104582383 A CN 104582383A CN 201510016592 A CN201510016592 A CN 201510016592A CN 104582383 A CN104582383 A CN 104582383A
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Abstract
The invention discloses a surge protection device with high reliability and a high protection level. The surge protection device comprises a box body and a box cover; the box body is provided with leading-out holes of a leading-out wire L, a leading-out wire N, a leading-out wire PE, a leading-out signal line FM1 and a leading-out signal line FM2; the joint of an elastic sheet and the leading-out wire L, the joint of a first electrode and the leading-out wire PE, the joint of a second electrode and the leading-out wire N, the joint of the leading-out signal line FM1 and a printed board, the joint of the leading-out signal line FM2 and the printed board, and the leading-out holes, in the box body, of the leading-out wire L, the leading-out wire N, the leading-out wire PE, the leading-out signal line FM1 and the leading-out signal line FM2 are all covered with encapsulating materials; the juncture of the box body and the box cover is covered with encapsulating materials. The use quantity of the encapsulating materials can be greatly reduced, cost is saved, and the surge protection device is convenient to machine and manufacture. Partial encapsulating is adopted for over-voltage protection components, the technical potential problem that complete encapsulating influences performance of the over-voltage protection components is solved, and surge protection performance is more reliable.
Description
Technical field
The present invention relates to the protective device to LED illumination and other electronic equipment, be specifically related to a kind of surge protector (SPD) of highly reliable high-protection level.
Background technology
Large relative to the power consumption of conventional road lamp, the life-span is short, change the shortcomings such as frequent, LED street lamp has the plurality of advantages such as volume is little, the life-span is long, electrical efficiency is high, environmental protection and energy saving, and therefore, LED street lamp will replace conventional road lamp gradually.
Road lamp with other conventional light source is the same, and LED street lamp also can suffer to comprise the impact of lightning overvoltage, switching overvoltage and temporary overvoltage and damage.Usual LED street lamp is mostly arranged on open air; surge protector, driving power, LED module are all installed concentratedly in the lampshade on lamp stand top; need normally to run under various adverse circumstances; size etc. for the waterproof and dustproof of entirety, antiultraviolet and volume requires very high; this, relative to the SPD of the industry requirements such as communication, electric power, has higher requirement in waterproof and volume.
Chinese patent CN 201320314877.9 discloses a kind of protector for LED streetlamp power source; it relies on the mode whole lightning protection device being loaded resin or other material to ensure degree of protection; this mode is when meeting the degree of protection of IP67; required inserts is more, will cause adverse effect after filling to the impact property etc. of overvoltage protection element simultaneously.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art; there is provided a kind of simple; meet the high reliability surge protector that IP67 degree of protection requires when simultaneously not affecting overvoltage protection element performance, meet that LED street lamp is dust-proof to surge protector, waterproof and surge protection demand.
The mode that surge protector of the present invention uses sealing ring to combine with embedding; high temperature resistant, flame-retardant insulating material is adopted at the position may soaked in lid and box body junction, lead-out wire and SPD internal connection etc. to carry out embedding; high temperature resistant, flame-retardant insulating material preferred epoxy; potting compound seals upper cover and box body junction, lead-out wire and SPD internal connection completely; only the contacted voltage protection component group of small part plays fixation, thus decreases the impact on overvoltage protection element performance.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A surge protector for highly reliable high-protection level, comprises box body, lid; Be provided with overvoltage protection element group, telecommunication equipment, shell fragment, extraction wire L in described box body, draw wire N, draw wire PE; Described overvoltage protection element group comprises a voltage restricted type element, voltage switch type element, the first electrode, second electrode; Described telecommunication equipment comprises sensitive switch, printed board, extraction holding wire FM1, draws holding wire FM2; Described box body is provided with and draws wire L, draw wire N, draw wire PE, draw holding wire FM1 and draw the fairlead of holding wire FM2; Extraction wire L on described shell fragment and described extraction wire L junction, the first described electrode and described extraction wire PE junction, described second electrode and described extraction wire N junction, described extraction holding wire FM1 and described printed board junction, described extraction holding wire FM2 and described printed board junction, described box body, the fairlead of drawing wire N, draw wire PE, draw holding wire FM1 and drawing holding wire FM2 are all coated with potting compound; The junction of described box body and described lid is coated with potting compound.
Further technical scheme is that lid is provided with divider wall; Potting compound is coated with between described divider wall and described box body.
Further technical scheme is provided with sealing ring in gap between box body and described lid.
Further technical scheme is that box body is provided with draw-in groove, and described lid is provided with buckle; Described sealing ring is compressed by described draw-in groove and described being clasped.
Further technical scheme is potting compound is high temperature resistant, flame-retardant insulating material.
Further technical scheme is high temperature resistant, flame-retardant insulating material is epoxy resin or silica gel.
Further technical scheme is that box body is provided with sealing strip mounting groove; Described sealing ring is arranged in described sealing strip mounting groove.
Further technical scheme is provided with embedding district divider wall and divider wall embedding district in box body.
Further technical scheme is that the first electrode is connected with described extraction wire PE by the mode of soldering or spot welding; Described second electrode is connected with described extraction wire N by the mode of soldering or spot welding; Described shell fragment is connected with described extraction wire L by the mode of soldering or spot welding.
Further technical scheme is drawn holding wire FM1, draws holding wire FM2 and be welded in described printed board.
Compared with prior art; one of beneficial effect of the present invention is: the highly reliable high-protection level SPD of the present invention immerses the measure of approach emphasis embedding for liquid owing to have employed; with by the measure of whole for overvoltage protection element group embedding comparatively speaking; the consumption of Embedding Material can be greatly reduced; cost-saving, be convenient to processing and fabricating.The highly reliable high-protection level SPD of the present invention adopts the embedding of overvoltage protection element group part, avoids the technology hidden danger that whole embedding affects the performance of overvoltage protection element own, surge protection more reliable performance.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of one embodiment of the invention.
Fig. 2 is the internal structure schematic diagram of one embodiment of the invention.
Fig. 3 is layered seal mode structural representation in one embodiment of the invention.
Fig. 4 is the structural representation of box body in one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figures 1 to 4, the highly reliable high-protection level SPD of one embodiment of the invention be made up of box body 1, lid 2, sealing ring 3, potting compound 4, shell fragment 5, sliding part 6, at least one overvoltage protection element overvoltage protection element group 7, telecommunication equipment 8, draw wire L, draw wire N, draw wire PE.Overvoltage protection element group comprises a voltage restricted type element (piezo-resistance) 71, voltage switch type element (gas discharge tube) 72, first electrode 73, second electrode 74; Telecommunication equipment 8 comprises sensitive switch 81, printed board 82, draws holding wire FM183, draws holding wire FM284.
Concrete; in the present embodiment the first electrode 73, second electrode 74 of overvoltage protection element group 7 by the mode of soldering or spot welding respectively with extraction wire PE, draw wire N and be connected; draw wire L to be connected by the mode of soldering or spot welding with one end of shell fragment 5; draw holding wire FM183, extraction holding wire FM284 is welded in printed board 82, the pin of sensitive switch 81 is connected with printed board by wire.As preferred embodiment, in the present embodiment potting compound 4 by draw wire L and shell fragment 5 junction, by the first electrode with draw wire PE junction, the second electrode with extraction wire N junction, draw holding wire FM1, draw holding wire FM2 and printed board junction, extraction wire PE on box body 1, draw wire N, draw wire L, draw holding wire FM1, draw holding wire FM2 fairlead and cover completely; Seal with sealing ring between lid 2 and box body 1 gap, box body have draw-in groove, by with being clasped on lid, press seal circle, lid has divider wall, and potting compound 4 covers the part between divider wall and box body.
Specific embodiment is, is provided with cable-through hole 11 in the present embodiment in box body 1, embedding district divider wall 12, divider wall embedding district 13, sealing strip mounting groove 14; As shown in Figure 3, potting compound 4 by the first electrode 73 with wire PE junction 731, second electrode 74 with wire N junction 741, shell fragment 5 with wire L junction 51, draw holding wire FM183, draw holding wire FM284 and printed board 82 junction 821, wire PE, wire N on box body 1, wire L, holding wire FM1, holding wire FM2 fairlead 11 cover completely, above measure can effectively realize being positioned at the connecting position of wires of box body 1 and the sealing of box body 1 cable-through hole 11;
As preferred embodiment, according to another embodiment of the invention, on the basis of above-described embodiment, seal with sealing ring 3 between lid 2 and box body 1 gap in the present embodiment, inside box body 1, have draw-in groove, by with being clasped on lid 2, press seal circle 3, lid 2 has divider wall 21, potting compound 4 covers the part between divider wall 21 and box body 1, and above measure effectively realizes space sealing between lid 2 and box body 1.The requirement of IP67 degree of protection is realized by the mode of above-mentioned layered seal.
The mode that the surge protector of the highly reliable high-protection level of above-described embodiment uses sealing ring to combine with embedding; high temperature resistant, flame-retardant insulating material is adopted at the position may soaked in lid and box body junction, lead-out wire and SPD internal connection etc. to carry out embedding; potting compound described in above-described embodiment is high temperature resistant, flame-retardant insulating material; further preferred epoxy; also can be silica gel, or other have high temperature resistant, the flame-retardant insulating material of close function.Potting compound seals upper cover and box body junction, lead-out wire and SPD internal connection completely, and only the contacted voltage protection component group of small part plays fixation, thus decreases the impact on overvoltage protection element performance.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any one embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to the multiple explanatory embodiment of inventing, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of the open claim of the application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (10)
1. a surge protector for highly reliable high-protection level, comprises box body (1), lid (2), be provided with overvoltage protection element group (7), telecommunication equipment (8), shell fragment (5) in described box body, draw wire L, draw wire N, draw wire PE, described overvoltage protection element group (7) comprises a voltage restricted type element (71), voltage switch type element (72), the first electrode (73), the second electrode (74), described telecommunication equipment (8) comprises sensitive switch (81), printed board (82), draws holding wire FM1 (83), draws holding wire FM2 (84), described box body (1) is provided with and draws wire L, draw wire N, draw wire PE, draw holding wire FM1 (83) and draw the fairlead of holding wire FM2 (84), it is characterized in that: described shell fragment (5) and described extraction wire L junction, described the first electrode (73) and described extraction wire PE junction, described second electrode (74) and described extraction wire N junction, described extraction holding wire FM1 (83) and described printed board (82) junction, described extraction holding wire FM2 (84) and described printed board (82) junction, extraction wire L on described box body (1), draw wire N, draw wire PE, the fairlead of drawing holding wire FM1 (83) and extraction holding wire FM2 (84) is all coated with potting compound (4), described box body (1) is coated with potting compound (4) with the junction of described lid (2).
2. the surge protector of highly reliable high-protection level according to claim 1, is characterized in that described lid (2) is provided with divider wall (21); Potting compound (4) is coated with between described divider wall (21) and described box body (1).
3. the surge protector of highly reliable high-protection level according to claim 1, is characterized in that being provided with sealing ring (3) in the gap between described box body (1) and described lid (2).
4. the surge protector of highly reliable high-protection level according to claim 3, it is characterized in that described box body (1) is provided with draw-in groove, (2) are provided with buckle to described lid; Described sealing ring (3) is compressed by described draw-in groove and described being clasped.
5. the surge protector of highly reliable high-protection level according to claim 1 and 2, is characterized in that described potting compound (4) is high temperature resistant, flame-retardant insulating material.
6. the surge protector of highly reliable high-protection level according to claim 5, is characterized in that described high temperature resistant, flame-retardant insulating material are epoxy resin or silica gel.
7. the surge protector of highly reliable high-protection level according to claim 3, is characterized in that described box body (1) is provided with sealing strip mounting groove (14); Described sealing ring (3) is arranged in described sealing strip mounting groove (14).
8. the surge protector of the highly reliable high-protection level according to claim 1 or 2 or 3, is characterized in that being provided with embedding district divider wall (12) and divider wall embedding district (13) in described box body (1).
9. the surge protector of highly reliable high-protection level according to claim 1, is characterized in that described the first electrode (73) is connected with described extraction wire PE by the mode of soldering or spot welding; Described second electrode (74) is connected with described extraction wire N by the mode of soldering or spot welding; Described shell fragment (5) is connected with described extraction wire L by the mode of soldering or spot welding.
10. the surge protector of highly reliable high-protection level according to claim 1, it is characterized in that described extraction holding wire FM1 (83), draw holding wire FM2 (84) be welded in described printed board (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016592.0A CN104582383A (en) | 2015-01-13 | 2015-01-13 | Surge protection device with high reliability and high protection level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016592.0A CN104582383A (en) | 2015-01-13 | 2015-01-13 | Surge protection device with high reliability and high protection level |
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| Publication Number | Publication Date |
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| CN104582383A true CN104582383A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510016592.0A Pending CN104582383A (en) | 2015-01-13 | 2015-01-13 | Surge protection device with high reliability and high protection level |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114740A (en) * | 1994-07-08 | 1996-01-10 | 刘建明 | Miniature solid detonator |
| CN2256145Y (en) * | 1996-07-03 | 1997-06-11 | 北京益宏经贸集团 | Sealed electronic transformer |
| CN1474420A (en) * | 2003-07-10 | 2004-02-11 | 刘国光 | Outer casing inlayed seal capacitor and producing process |
| CN101088208A (en) * | 2004-11-09 | 2007-12-12 | 滨特尔泵集团公司 | Surge-suppression system for submersible electric motors |
| CN201014400Y (en) * | 2007-02-26 | 2008-01-30 | 黄元娥 | Sealed stopper of LED light tube |
| CN201036100Y (en) * | 2007-02-15 | 2008-03-12 | 广东省佛山科星电子有限公司 | Large current voltage-limiting power source surge protector |
| CN204362468U (en) * | 2015-01-13 | 2015-05-27 | 四川中光防雷科技股份有限公司 | The surge protector of highly reliable high-protection level |
-
2015
- 2015-01-13 CN CN201510016592.0A patent/CN104582383A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114740A (en) * | 1994-07-08 | 1996-01-10 | 刘建明 | Miniature solid detonator |
| CN2256145Y (en) * | 1996-07-03 | 1997-06-11 | 北京益宏经贸集团 | Sealed electronic transformer |
| CN1474420A (en) * | 2003-07-10 | 2004-02-11 | 刘国光 | Outer casing inlayed seal capacitor and producing process |
| CN101088208A (en) * | 2004-11-09 | 2007-12-12 | 滨特尔泵集团公司 | Surge-suppression system for submersible electric motors |
| CN201036100Y (en) * | 2007-02-15 | 2008-03-12 | 广东省佛山科星电子有限公司 | Large current voltage-limiting power source surge protector |
| CN201014400Y (en) * | 2007-02-26 | 2008-01-30 | 黄元娥 | Sealed stopper of LED light tube |
| CN204362468U (en) * | 2015-01-13 | 2015-05-27 | 四川中光防雷科技股份有限公司 | The surge protector of highly reliable high-protection level |
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Application publication date: 20150429 |