CN104505817A - Miniaturized high-reliability surge protection device - Google Patents
Miniaturized high-reliability surge protection device Download PDFInfo
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- CN104505817A CN104505817A CN201510016129.6A CN201510016129A CN104505817A CN 104505817 A CN104505817 A CN 104505817A CN 201510016129 A CN201510016129 A CN 201510016129A CN 104505817 A CN104505817 A CN 104505817A
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Abstract
The invention discloses a miniaturized high-reliability surge protection device. The miniaturized high-reliability surge protection device comprises a case. An overvoltage protection element group, a detachment and arc covering unit and a remote signaling unit are arranged in the case. The overvoltage protection element group comprises a voltage limiting element, a voltage switching element, a first electrode and a second electrode. The voltage limiting element is provided with a first pin, a second pin and a third pin. The voltage switching element is provided a fourth pin and a fifth pin. The fourth pin is connected to the first electrode through spot welding or soldering. The fifth pin is connected to the second electrode through spot welding or soldering. The first electrode is connected to a PE wire. The second electrode is welded to the second pin. The third pin is connected to an N wire. The miniaturized high-reliability surge protection device solves the technical problems of the occurrence of phenomena of housing explosion, fire spitting and the like during small current thermal stability detachment and large current overload detachment in alternating current and direct current systems under the condition that the surge protection device is in high-degree protection sealing.
Description
Technical field
The present invention relates to a kind of protective device to LED illumination and other electronic equipment, be specifically related to a kind of miniaturized high-reliability electrical surge protector.
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; suffer the probability of induced lightening higher; surge protector, driving power, LED module are all installed concentratedly in the lampshade on lamp stand top simultaneously; need normally to run under various adverse circumstances, the size etc. for the waterproof and dustproof of entirety, antiultraviolet, anti-surge capability and volume requires very high.
Chinese Patent Application No. CN 201320314877.9 discloses a kind of protector for LED streetlamp power source; it have employed the fusing of a kind of Thermal Cutoffs mode when surge protector trouble is protected self; but can not fuse safely when meeting big current at Thermal Cutoffs, even cause fire, electric shock and other safety accidents.Therefore, this type product is still not enough to some extent in own reliability.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art; a kind of miniaturized high-reliability electrical surge protector is provided; while meeting LED street lamp surge protection, waterproof and dustproof and small size demand; solve surge protector through to work long hours or after repeat impact; overvoltage protection element (piezo-resistance) is deterioration gradually; or there is larger overload current to pass through, the problem of safety release in two kinds of situations.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of miniaturized high-reliability electrical surge protector, comprises box body, is provided with overvoltage protection element group, disengaging and screening arc device and telecommunication equipment in described box body; Described overvoltage protection element group comprises: a voltage restricted type element, voltage switch type element, the first electrode, second electrode; Described voltage restricted type element is provided with the first pin, the second pin, the 3rd pin; Described first pin and the second pin extend in middle part two side position of described voltage restricted type element; Described 3rd pin extends in an end position of described voltage restricted type element; Described voltage switch type element is provided with the 4th pin, the 5th pin; Described 4th pin is arranged on described voltage switch type element one side position, and described 5th pin is arranged on relative opposite side position, described voltage switch type element side; Described 4th pin is connected by spot welding or soldering with described first electrode; Described 5th pin is connected by spot welding or soldering with described second electrode; Described first Electrode connection PE line; Described second electrode welds with described second pin; Described 3rd pin connects N line.
Further technical scheme is the 3rd pin is L-type structure.
Further technical scheme is provided with lid in box body, sealed between described box body and described lid by potting compound.
Further technical scheme is that inside box body, a circle is provided with sealing ring.
Further technical scheme be box body be provided be positioned at side outer wall cable-through hole, have separate place components and parts groups can the region of embedding insulating material and trip gear divider wall, for install metal clips draw-in groove, for install the fixed leg of slide rail and draw-in groove, for install telecommunication equipment draw-in groove, for installing the draw-in groove of sealing ring.
Further technical scheme departs from and hide arc device to comprise sliding part, described sliding part comprises: slide block, the spring placing tube be positioned on slide block, be positioned at spring placing tube blind end screening arc chamber, with hide the support strip that connects of bottom surface, arc chamber and be positioned at spring placing tube cylindrical shell and hide the auxiliary disengaging plate of arc chamber end face, the bottom surface of described support strip is higher than the bottom surface of slide block.
Further technical scheme is sliding part is integral structure.
Further technical scheme is sliding part is adopt gas exhausted material to be made.
Further technical scheme departs from and hide arc device to comprise metal clips, described metal clips by weld contact-making surface, with being integrally formed of the gland structure of welding linking arm that contact-making surface connects, connect with linking arm.
Further technical scheme is that the gland of metal clips is arranged in the draw-in groove of described box body, the wire L welded with described gland draws from the cable-through hole of box body, the welding contact-making surface of described metal clips welds with the first pin of described voltage restricted type element group, and the linking arm of described metal clips is placed on the end face of described auxiliary disengaging plate.
Compared with prior art; the invention has the beneficial effects as follows: 1, the invention solves surge protector when high-protection level seals, when departing from for the thermally-stabilised disengaging of the small area analysis in ac and dc systems and big current overload, occur the technical barrier of the phenomenons such as shell bursts, flame.
2, the invention solves surge protector when high-protection level seals, for AC system high (in) pressure temporary overvoltage resistance to tested person time, the technical barrier of voltage switch type component wear.
3, owing to being provided with telecommunication equipment in surge protector of the present invention; thus the state residing for convenient operation personnel control overvoltage protection element group; after overvoltage protection element group breaks down, energy Timeliness coverage and replacing, guarantee the safety of protected circuit or equipment.
4, the present invention is while guarantee surge protector function, and effectively reduce the overall volume of surge protector, surge protector compared to existing technology, in same function situation, volume is less than 2/3rds of existing surge protector volume.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of one embodiment of the invention.
Fig. 2 is cassette mechanism structure schematic diagram in one embodiment of the invention.
Fig. 3 is the structural representation of overvoltage protection element group in one embodiment of the invention.
Fig. 4 is the structural representation departing from and hide arc device in one embodiment of the invention.
Fig. 5 is the structural representation of box body in one embodiment of the invention.
Fig. 6 is sliding shoe structural representation in one embodiment of the invention.
Fig. 7 is metal clips and the structural representation with L wire bonding in one embodiment of the invention.
Fig. 8 is the structural representation before departing from and hide arc device action in one embodiment of the invention.
Fig. 9 is the result schematic diagram departing from and hide arc device action process in one embodiment of the invention.
Figure 10 is the structural representation after departing from and hide arc device action in one embodiment of the invention.
Figure 11 is the structural representation of telecommunication equipment in one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Fig. 1 to 11, the overvoltage protection element group 1 that the miniaturized high-reliability electrical surge protector of one embodiment of the invention is made up of at least one overvoltage protection element, lid 2, box body 3, sealing ring 4, potting compound 5, depart from and hide arc device 6, telecommunication equipment 7, draw wire L, N, PE.Depart from and hide arc device and be made up of sliding part 61, slide rail 62, metal clips 63, hold-down screw 64 and spring 65.
In the present embodiment, overvoltage protection element group comprises a voltage restricted type element (piezo-resistance) 11, voltage switch type element (gas discharge tube) 12, first electrode 13, second electrode 14.Voltage restricted type element is provided with the first pin 111, second pin 112, the 3rd pin 113; Voltage switch type element is provided with the 4th pin 121, the 5th pin 122.Voltage restricted type element and voltage switch type element, by the design of special pin, while meeting surge protector safety release and tolerance temporary overvoltage, when meeting high-protection level, make volume accomplish to minimize.Telecommunication equipment 7 in the present embodiment, comprises sensitive switch 71, printed board 72, connects wire 73, connects wire 74, draws holding wire FM1, draws holding wire FM2.
Specific embodiment is, in the present embodiment, the structure of overvoltage protection element group as shown in Figure 3, described voltage restricted type element can be a piezo-resistance 11, voltage switch type element can be a gas discharge tube 12, and described first pin 11 and the second pin 112 extend in middle part two side position of described voltage restricted type element; Described 3rd pin 113 extends in an end position of described voltage restricted type element; Described voltage switch type element 12 is provided with the 4th pin 121, the 5th pin 122; Described 4th pin 121 is arranged on described voltage switch type element 12 1 side position, and described 5th pin 122 is arranged on relative opposite side position, described voltage switch type element 12 side; Described 4th pin 121 is connected by spot welding or soldering with the first electrode 13; Described 5th pin 122 is connected by spot welding or soldering with described second electrode 14; Described first electrode 13 connects PE line; Described second electrode 14 welds with described second pin 112; Described 3rd pin 113 connects N line.Gland 633 place of L line and metal clips 63 is by together with spot welding or being soldered to.
As preferred embodiment, box body be provided be positioned at side outer wall cable-through hole 31, have separate place components and parts groups can embedding insulating material region 32 and trip gear divider wall 33, for install metal clips draw-in groove 36, for install the fixed leg 35 of slide rail and draw-in groove 34, for install telecommunication equipment draw-in groove 37, for installing the draw-in groove 38 of sealing ring.
Depart from the present embodiment and hide arc device 6 and be made up of sliding part 61, slide rail 62, metal clips 63 and spring 65; Described sliding part 61 as shown in Figure 6, by slide block 611, the spring placing tube 612 be positioned on slide block, be positioned at spring placing tube blind end screening arc chamber 613, form with the auxiliary disengaging plate 615 hiding the support strip 614 that connects of bottom surface, arc chamber and be positioned at spring placing tube cylindrical shell and hide arc chamber end face, the bottom surface of described support strip is higher than the bottom surface of slide block, sliding part nylon makes, and is integrated; Described metal clips 63 as shown in Figure 7, is made up of welding contact-making surface 631, the linking arm 632 connected with welding contact-making surface, the gland 633 that connects with linking arm, with sprung copper making, and is integrated; Preferably, spring 65 described in the present embodiment is stage clip.
During use, what overvoltage protection element group was installed on box body can potting area 32, and the printed board 71 of telecommunication equipment 7 is placed on components and parts group lower floor, and wire N, PE in element group 1 and telecommunication equipment 7, holding wire FM1, FM2 draw from the cable-through hole 31 box body 3; Slide rail assembly wall 621 loads in box body draw-in groove 34, and be fixed on box body fixed leg 35 by tapping screw 64, the slide block 611 of sliding part 61 is inserted in track of sliding track 622, spring 65 is arranged in the hole of described spring placing tube 612, its one end contacts with spring placing tube barrel, and its other end departs from contact with the slide rail assembly wall 621 in the surge protector hiding arc device with use; The gland 633 of metal clips is arranged on the draw-in groove 36 of the box body of surge protector; the wire L welded with it draws from the cable-through hole 31 of box body; the welding contact-making surface 631 of metal clips welds with the first pin 111 of voltage restricted type element group in surge protector, and the linking arm 632 of metal clips is placed on the end face of described auxiliary disengaging plate 615.The sensitive switch 71 of telecommunication equipment is arranged on the draw-in groove 37 of the box body being positioned at trip gear front end, by welding lead 73,74 be positioned at and can the printed board 72 of potting area be connected.
In application, surge protector is through to work long hours or after repeat impact; voltage restricted type element group (piezo-resistance) in overvoltage protection element group is deterioration gradually; temperature raises gradually; or there is larger overload current to pass through; the temperature of voltage restricted type element group (piezo-resistance) is caused to raise fast; when voltage restricted type element group the first pin 111 with depart from and hide temperature that metal clips in arc device welds contact-making surface weld reach fusing or the melt temperature of solder time, release unit starts action.The stage clip 65 of release unit discharges elastic force promotion sliding part 61 and travels forward along track of sliding track 622, move upward in process at metal clips welding contact-making surface 631, the auxiliary disengaging plate 615 of sliding shoe promotes metal clips 63 and moves upward, and realizes metal clips and is separated rapidly with voltage restricted type element first pin and realizes enough large throw-off distances; When sliding part moves to the limited wall 21 being positioned at lid, voltage restricted type element first pin 111 hides by the screening arc chamber 613 of sliding shoe front end completely, contacting with the support strip 614 that screening bottom surface, arc chamber connects and pushing down sensitive switch contact 711 simultaneously on sliding shoe, triggers telecommunication equipment warning function.
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 miniaturized high-reliability electrical surge protector, comprise box body (3), be provided with overvoltage protection element group (1) in described box body (3), depart from and hide arc device (6) and telecommunication equipment (7); It is characterized in that: described overvoltage protection element group (1) comprising: voltage restricted type element (11), voltage switch type element (12), the first electrode (13), the second electrode (14); Described voltage restricted type element (11) is provided with the first pin (111), the second pin (112), the 3rd pin (113); Described first pin (11) and the second pin (112) extend in middle part two side position of described voltage restricted type element; Described 3rd pin (113) extends in an end position of described voltage restricted type element; Described voltage switch type element (12) is provided with the 4th pin (121), the 5th pin (122); Described 4th pin (121) is arranged on described voltage switch type element (12) side position, and described 5th pin (122) is arranged on relative opposite side position, described voltage switch type element (12) side; Described 4th pin (121) is connected by spot welding or soldering with described first electrode (13); Described 5th pin (122) is connected by spot welding or soldering with described second electrode (14); Described first electrode (13) connects PE line; Described second electrode (14) is welded with described second pin (112); Described 3rd pin (113) connects N line.
2. miniaturized high-reliability electrical surge protector according to claim 1, is characterized in that the 3rd described pin (113) is in L-type structure.
3. miniaturized high-reliability electrical surge protector according to claim 1; it is characterized in that being provided with lid (2) in described box body (3), sealed by potting compound between described box body (3) and described lid (2).
4. the miniaturized high-reliability electrical surge protector according to claim 1 or 3, is characterized in that described box body (3) inner side one circle is provided with sealing ring (4).
5. miniaturized high-reliability electrical surge protector according to claim 1, it is characterized in that described box body (3) be provided be positioned at side outer wall cable-through hole (31), have separate place components and parts groups can embedding insulating material region (32) and trip gear divider wall (33), for install metal clips draw-in groove (36), for install the fixed leg (35) of slide rail and draw-in groove (34), for install telecommunication equipment draw-in groove (37), for installing the draw-in groove (38) of sealing ring.
6. miniaturized high-reliability electrical surge protector according to claim 5, it is characterized in that described disengaging and hide arc device (6) comprising sliding part (61), described sliding part (61) comprising: slide block (611), be positioned at the spring placing tube (612) on slide block, be positioned at the screening arc chamber (613) of spring placing tube blind end, with hide the support strip (614) that connects of bottom surface, arc chamber and be positioned at spring placing tube cylindrical shell and hide the auxiliary disengaging plate (615) of arc chamber end face, the bottom surface of described support strip (614) is higher than the bottom surface of slide block (611).
7. miniaturized high-reliability electrical surge protector according to claim 6, is characterized in that described sliding part (61) is integral structure.
8. the miniaturized high-reliability electrical surge protector according to claim 6 or 7, is characterized in that described sliding part (61) adopts gas exhausted material to be made.
9. miniaturized high-reliability electrical surge protector according to claim 6; it is characterized in that described disengaging and hide arc device (6) comprising metal clips (63), described metal clips (63) by welding contact-making surface (631), with weld the linking arm (632) that contact-making surface connects, gland (633) the being integrally formed structure connected with linking arm.
10. miniaturized high-reliability electrical surge protector according to claim 9; it is characterized in that the gland (633) of described metal clips is arranged in the draw-in groove (36) of described box body; the wire L welded with described gland draws from the cable-through hole (31) of box body; the welding contact-making surface (631) of described metal clips welds with first pin (111) of described voltage restricted type element group, and the linking arm (632) of described metal clips is placed on the end face of described auxiliary disengaging plate (615).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016129.6A CN104505817A (en) | 2015-01-13 | 2015-01-13 | Miniaturized high-reliability surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016129.6A CN104505817A (en) | 2015-01-13 | 2015-01-13 | Miniaturized high-reliability surge protection device |
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| Publication Number | Publication Date |
|---|---|
| CN104505817A true CN104505817A (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016129.6A Pending CN104505817A (en) | 2015-01-13 | 2015-01-13 | Miniaturized high-reliability surge protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852369A (en) * | 2015-04-29 | 2015-08-19 | 陈斌 | Surge protector |
| CN108054727A (en) * | 2017-12-28 | 2018-05-18 | 广东立信防雷科技有限公司 | A kind of surge protector and its manufacturing method |
-
2015
- 2015-01-13 CN CN201510016129.6A patent/CN104505817A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852369A (en) * | 2015-04-29 | 2015-08-19 | 陈斌 | Surge protector |
| CN104852369B (en) * | 2015-04-29 | 2017-12-22 | 陈斌 | Surge protector |
| CN108054727A (en) * | 2017-12-28 | 2018-05-18 | 广东立信防雷科技有限公司 | A kind of surge protector and its manufacturing method |
| CN108054727B (en) * | 2017-12-28 | 2024-03-22 | 广东立信防雷科技有限公司 | Surge protector and manufacturing method thereof |
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Application publication date: 20150408 |
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