CN103198985A - Surge protection device - Google Patents
Surge protection device Download PDFInfo
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- CN103198985A CN103198985A CN2013101233911A CN201310123391A CN103198985A CN 103198985 A CN103198985 A CN 103198985A CN 2013101233911 A CN2013101233911 A CN 2013101233911A CN 201310123391 A CN201310123391 A CN 201310123391A CN 103198985 A CN103198985 A CN 103198985A
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- box body
- protection element
- overvoltage protection
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Abstract
A surge protection device comprises an outer shell, at least one overvoltage protective element located in the outer shell, a separating device used for separating the overvoltage protective element from an alternating current circuit or a direct current circuit or a device, an arc extinguishing device used for extinguishing electric arcs generated in the process when the overvoltage protective element is separated from the alternating current circuit or the direct current circuit or the device and a box body. The separating device is composed of a pressure spring, a metal elastic sheet, a sliding block and a flexible conductor. The arc extinguishing device is formed by a rotation block and a torsional spring, wherein the rotation block is in a strip shape, the end portion of one end of the rotation block is provided with an electric arc baffle-board and the end portion of the other end of the rotation block is provided with an installation hole. A position, close to the electric arc baffle-board, of the rotation block is provided with an arc extinguishing cavity.
Description
Technical field
The invention belongs to the protective device of electronic electric equipment, particularly a kind of surge protector.
Background technology
Along with the development of industries such as electric power, communication, the range of application of surge protector is more and more wider, and the number of times that breaks down in application is more and more.After surge protector deterioration or overload, will breaking out of fire as can not in time separate with device security with interchange or DC circuit the time etc. accident, so the fail safe under surge protector deterioration or the overload situations more and more receives publicity.
CN 102132467A discloses a kind of overvoltage discharger with at least one arresting element, though described overvoltage discharger is when it short-circuit condition occurs or before the next-door neighbour, its movably isolated part can invade in the motion circuit of its conductor segment or conducting bridge, in order to stop or suppress and light electric arc again between conducting element and the separated part, but find when carrying out thermal stability test with reference to the IEC61643.1-2005 standard: if when it is applied maximum continuous operating voltage, the electric current that flows through this voltage discharger surpasses 0.5mA, does not meet the requirement of IEC61643-1:2005 standard.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of improved surge protector is provided, separate with circuit or device security to guarantee surge protector deterioration or overload back, and eliminate potential safety hazards such as fire, electric leakage, further improve fail safe.
Surge protector of the present invention, comprise shell, be arranged in shell at least one overvoltage protection element, be used for the release unit of overvoltage protection element and alternating current circuit or DC circuit or device separates, for the arc-control device and the box body that extinguish overvoltage protection element and alternating current circuit or DC circuit or device separates electric arc that process produces; Described overvoltage protection element is provided with first pin that is connected with first electrode and second pin that is connected or separates by release unit and second electrode and is installed on the described box body; Described release unit is made up of stage clip, metal clips, slide block and flexible conductor; Slide block is installed in the chute of described box body setting, one end of stage clip contacts with slide block, its other end is fixed on the box body, metal clips is installed on the slide block, the one end is connected with flexible conductor, its other end is when overvoltage protection element is in normal condition and second pin of overvoltage protection element welding, after overvoltage protection element is in abnormal condition and causes this end and second pin of overvoltage protection element separates, by the effect of stage clip elastic restoring force to slide block, drive metal clips by slide block and move to first set on the box body limited wall place, flexible conductor links to each other with second electrode; Described arc-control device is made up of moving block and torsion spring; Moving block is bar blocks, one end end is provided with the electric arc reflecting plate, its other end end is provided with installing hole, it is provided with arcing chamber near electric arc reflecting plate place, moving block is sleeved on the first set bearing pin of box body by the installing hole that its end arranges, and be hinged with this bearing pin, described first bearing pin the position is set: when overvoltage protection element is in normal condition, the right flank that moving block is provided with electric arc reflecting plate one end contacts with metal clips, the 3rd limited wall that arranges on the left surface of moving block and the box body contacts, after overvoltage protection element is in abnormal condition and causes metal clips and overvoltage protection element separates, when moving block turned to second set on the box body limited wall place under the effect of torsion spring, the arcing chamber that arranges on the moving block covered second pin with overvoltage protection element after metal clips separates; Torsion spring is installed on the moving block and with described first bearing pin and links to each other.
Surge protector of the present invention, also comprise indicating device, described indicating device comprises labelling piece, U-shaped ring and extension spring, described labelling piece is by the dial plate that is provided with green marked area and red marked area, mount pad and extension spring fixed leg constitute, described dial plate one end and mount pad one end intersect the formation angle and are integrated, the place, top, angle angle that described dial plate and mount pad form is provided with U-shaped ring installing hole, described mount pad is provided with hinge hole, the free end end of mount pad is provided with spacing block set, and the extension spring fixed leg is positioned near the intersection of dial plate and mount pad and is fixed on the mount pad; Described labelling piece is sleeved on the second set bearing pin of box body by the hinge hole on its mount pad, and be hinged with this bearing pin, described U-shaped ring is installed in the U-shaped ring installing hole that labelling piece arranges and links to each other with slide block in the release unit, one end of described extension spring is fixed on the extension spring fixed leg of labelling piece setting, and its other end is fixed on the steady pin of box body setting; Be provided with the transparency window that appears green marked area or red marked area at the top of described case body.When overvoltage element was in normal condition, the green marked area on the dial plate was appeared; After overvoltage element is in abnormal condition and causes metal clips and overvoltage protection element separates; slide block moves upward and drives labelling piece and moves upward; then dial plate rotates under the recovery pulling force effect of extension spring; when the spacing block set of mount pad end contacts first limited wall; dial plate stops operating; slide block stop motion simultaneously, the red marked area on the dial plate is appeared.
Surge protector of the present invention, the metal clips in its release unit successively by lead the arc termination, the welding contact-making surface, linking arm, fixedly the termination constitutes.Metal clips can be made by sprung copper, silver and alloy thereof, and the preferred elastomeric copper is done.
Surge protector of the present invention, the flexible conductor in its release unit preferably weaves annealed copper wire.
Surge protector of the present invention, its box body is provided with the arc control device gas outlet, and the position of the corresponding described arc control device of case body gas outlet is provided with exhaust outlet.
Surge protector of the present invention, the moving block in its arc-control device is provided with guide-track groove between arcing chamber and installing hole, and the corresponding site of described box body is provided with the guide rail with the guide-track groove coupling.
Surge protector of the present invention; its shell, box body, slide block and moving block aerogenesis insulating material or not aerogenesis insulating material making; preferably make of the aerogenesis insulating material; because the gas that the aerogenesis insulating material produces cools off electric arc on the one hand; strengthen the air-blowing effect to electric arc on the other hand, can accelerate electric arc to the movement velocity of arc control device gas outlet.The aerogenesis insulating material can be selected polyformaldehyde or nylon, melamine for use.
The operation principle of surge protector of the present invention:
Surge protector is through after working long hours or repeatedly impacting, overvoltage protection element (piezo-resistance) is deterioration gradually, temperature raises gradually, perhaps there is especially big overload current to pass through, the temperature that causes overvoltage protection element (piezo-resistance) raises fast, when the temperature of metal clips weld in second pin of overvoltage protection element and the release unit reaches the fusing of scolder or melt temperature, second pin of described metal clips and overvoltage protection element is disconnected from each other, the active force that moving block in the arc-control device is applied and the active force that stage clip in the release unit is applied have been removed, thereby the moving block in the arc-control device rotates to the second limited wall direction that box body arranges under the elastic restoring force effect that torsion spring produces, the slide block in the release unit under the elastic restoring force effect that stage clip produces with metal clips set first limited wall direction motion on the box body; Rotation along with moving block; metal clips and overvoltage protection element second pin are separately carried out electrical isolation; while both cooled off the electric arc of metal clips and overvoltage protection element pin separation process generation; the shock wave of motion backward that described electric arc is produced reflects again; because reflected wave is consistent towards arc control device gas outlet travel direction with electric arc, make electric arc discharge, elongate from described gas outlet as early as possible.When moving block turns to second set on the box body limited wall place, the arcing chamber that arranges on the moving block covers second pin of overvoltage protection element; Along with moving upward of slide block; the distance of metal clips and overvoltage protection element second pin constantly increases; move to first set on the box body limited wall place when slide block drives metal clips, finish the electrical separation of metal clips and overvoltage protection element second pin.
The present invention has following beneficial effect:
1; the structure of the arc-control device in the surge protector of the present invention makes it have the function of extinguishing hard arc; release unit in the surge protector of the present invention can make metal clips leave second pin of overvoltage protection element fast; finish the quick electrical separation of metal clips and overvoltage protection element second pin; thereby release unit separates with circuit or device security when having guaranteed that with the combination of arc-control device surge protector breaks down; solve surge protector and be applied to that little electrical current heat in the ac and dc systems is stable to break away from and technical barrier that big current overload breaks away from, especially in the DC circuit of the alternating current circuit of higher system voltage and big short circuit current or equipment (for example wind power plant) and higher system voltage and less short circuit current or equipment (for example photovoltaic generation equipment) application, had very high fail safe.
2, experiment shows; when driving metal clips, slide block moves to first set on the box body limited wall place; after finishing metal clips and the electricity of overvoltage element second pin separating; surge protector namely breaks away from AC-DC Circuit or equipment fully; when its two ends apply maximum continuous operating voltage; the electric current that does not have above 0.5mA flows through, thereby fail safe improves.
3, owing to be provided with indicating device in the surge protector of the present invention; thereby be convenient to operating personnel and monitor the residing state of overvoltage protection element; after the overvoltage protection element breaks down, can in time find and change, guarantee the safety of protected circuit or equipment.
Description of drawings
Fig. 1 is a kind of structural representation of shell in the surge protector of the present invention;
Fig. 2 is a kind of stereogram of function element and compound mode thereof in the surge protector of the present invention;
Fig. 3 is the schematic diagram that the overvoltage protection element pin is connected with an electrode in the surge protector of the present invention;
Fig. 4 is the plane figure of Fig. 2, this Figure illustrates the structure of release unit, arc-control device, indicating device, and among the figure, second pin of the metal clips in the release unit and overvoltage protection element is in connection status;
Fig. 5 is the plane figure of Fig. 2, this Figure illustrates the structure of release unit, arc-control device, indicating device, and among the figure, second pin of the metal clips in the release unit and overvoltage protection element is in the process that is separated;
Fig. 6 is the plane figure of Fig. 2, this Figure illustrates the structure of release unit, arc-control device, indicating device, and among the figure, second pin of the metal clips in the release unit and overvoltage protection element is in the extreme position that is separated;
Fig. 7 is a kind of structural representation of metal clips;
Fig. 8 is a kind of structural representation of moving block;
Fig. 9 is a kind of structural representation of labelling piece.
Among the figure, 1-shell; 11-housing; 111-exhaust outlet; 12-transparency window; 2-box body; 201-arc control device gas outlet; 202-the first limited wall; 203-the second limited wall; 204-first bearing pin; 205-the second bearing pin; 206-steady pin; 207-guide rail; 208-the three limited wall; 3-overvoltage protection element; 311-overvoltage protection element, first pin; 312-overvoltage protection element, second pin; 4-release unit; 41-stage clip; 42-metal clips; 421-lead the arc termination; 422-welding contact-making surface; 423-linking arm; 424-fixedly terminations; 43-slide block; 44-flexible conductor; 5-arc-control device; 51-moving block; 511-electric arc reflecting plate; 512-arcing chamber; 513-guide-track groove; 514-moving block installing hole; 52-torsion spring; 6-indicating device; 61-labelling piece; 611-dial plate; 612-extension spring fixed leg; 613-spacing block set; 614-hinge hole; 615-U-shaped ring installing hole; 62-U-shaped ring; 63-extension spring; 7-the second electrode; 8-the first electrode.
Embodiment
Also by reference to the accompanying drawings the structure of surge protector of the present invention is described further below by embodiment.
In the present embodiment, surge protector is seen Fig. 1 by shell 1(), the overvoltage protection element 3, release unit 4, arc-control device 5, indicating device 6 and the box body 2(that are positioned at shell see Fig. 2) form.The shape approximation of described case body 11 is made of nylon in cuboid, and the housing end face is provided with transparency window 12, and right flank top is provided with exhaust outlet 111(and sees Fig. 1).Described overvoltage protection element 3 is piezo-resistance, is provided with first pin 311 and the second pin 312(sees Fig. 3), first pin 311 is connected with first electrode 8, and second pin 312 is connected or separates with second electrode 7 by release unit.The one side of described box body 2 is provided with the cavity that voltage protection element 3 is installed; the side, another side upper right side of described box body is provided with arc control device gas outlet 201; the upper left side is provided with first limited wall 202; the lower left is provided with the 3rd limited wall 208; the lower right is provided with second limited wall 203; on first limited wall, be provided with second bearing pin 205; be provided with steady pin 206 in the second bearing pin upper right side; be provided with the chute that slide block is installed in the left side of first limited wall; be provided with the guide rail 207 that the guiding moving block rotates in the left side of second limited wall, described guide rail below is provided with the first bearing pin 204(and sees Fig. 2; Fig. 4; Fig. 5; Fig. 6).The requirement of described first bearing pin 204 positions: when voltage protection element 3 is in normal condition, moving block 51 in the arc-control device is provided with the side of electric arc reflecting plate 511 1 ends and contacts with metal clips 42 in the release unit, and the left surface of moving block 51 is spacing by the 3rd limited wall 208; After overvoltage protection element is in abnormal condition and causes metal clips 42 and overvoltage protection element separates; when moving block turned to second limited wall, 203 places set on the box body under the effect of torsion spring 52, the arcing chamber 512 that arranges on the moving block should will cover with second pin 312 of overvoltage protection element after metal clips separates.Described release unit 4 is formed (seeing Fig. 4, Fig. 5, Fig. 6) by stage clip 41, metal clips 42, slide block 43 and flexible conductor 44; Slide block 43 is made by nylon, its inside is provided with the cavity that stage clip is installed, metal clips 42 is the shell fragment that sprung copper is made, successively by lead arc termination 421, welding contact-making surface 422, linking arm 423, fixedly termination 424 constitutes (see figure 7), flexible conductor 44 is for weaving annealed copper wire; Slide block 43 is installed in the set chute of box body; stage clip 41 is installed in the inner chamber of slide block; its upper end contacts with the top of slide block 43 inner chambers; its lower end is fixed on the box body; metal clips 42 is installed on the slide block; it fixedly is connected with flexible conductor 44 termination 424; its the welding contact-making surface 422 when overvoltage protection element is in normal condition and second pin 312 of overvoltage protection element weld by soldering; after overvoltage protection element is in abnormal condition and causes described welding contact-making surface 422 and second pin 312 of overvoltage protection element separates; by the effect of stage clip elastic restoring force to slide block; drive metal clips by slide block and move up to set first limited wall, 202 places, box portion left top, flexible conductor 44 links to each other with second electrode 7 and (sees Fig. 4; Fig. 5; Fig. 6).Described arc-control device 5 is formed (seeing Fig. 4, Fig. 5, Fig. 6) by moving block 51 and torsion spring 52; Moving block 51 is bar blocks, is made by nylon, and its end, upper end is provided with electric arc reflecting plate 511, and its end, lower end is provided with installing hole 514, and it is provided with arcing chamber 512 near electric arc reflecting plate place, is provided with guide-track groove 513(under its arcing chamber and sees Fig. 8); Moving block is sleeved on the first set bearing pin 204 of box body by the installing hole 514 that its end, lower end arranges, and is hinged with this bearing pin, and torsion spring 52 is installed on the moving block and with described first bearing pin 204 and links to each other.Described indicating device 6 comprises labelling piece 61, U-shaped ring 62 and extension spring 63; Described labelling piece 61 is made of the dial plate 611 that is provided with green marked area and red marked area, mount pad and extension spring fixed leg 612, described dial plate 611 1 ends and mount pad one end intersect the formation angle and are integrated, the place, top, angle angle that described dial plate and mount pad form is provided with U-shaped ring installing hole 615, described mount pad is provided with hinge hole 614, the free end end of mount pad is provided with spacing block set 613, and extension spring fixed leg 612 is positioned near the intersection of dial plate and mount pad and is fixed on the mount pad; Described labelling piece 61 is sleeved on the second set bearing pin 205 of box body by the hinge hole 614 on its mount pad, and be hinged with this bearing pin, described U-shaped ring 62 is installed in the U-shaped ring installing hole 615 that labelling piece arranges and links to each other with slide block 43 in the release unit, one end of described extension spring 63 is fixed on the extension spring fixed leg 612 that labelling piece arranges, and its other end is fixed on the steady pin 206 that box body arranges (seeing Fig. 4, Fig. 5, Fig. 6).When overvoltage protection element was in normal condition, the green marked area on the dial plate 611 was appeared; After overvoltage protection element is in abnormal condition and causes metal clips 42 and overvoltage protection element separates; driving labelling piece 61 when slide block 43 moves upward moves upward; dial plate 611 rotates under the recovery pulling force effect of extension spring 63; when the spacing block set 613 of mount pad end contacts first limited wall 202; dial plate 611 stops operating; slide block 43 stop motions simultaneously; metal clips 42 reaches the limit of the position; finish the electrical separation of metal clips and overvoltage protection element second pin; red marked area on the dial plate is appeared; the top of described case body is provided with the transparency window 12 that appears green marked area or red marked area, and the operator can observe by the transparency window 12 that the housing end face arranges.
Claims (10)
1. surge protector; comprise shell (1); be positioned at least one overvoltage protection element (3) of shell; be used for the release unit (4) with overvoltage protection element and alternating current circuit or DC circuit or device separates; be used for extinguishing arc-control device (5) and the box body (2) of overvoltage protection element and alternating current circuit or DC circuit or device separates electric arc that process produces; described overvoltage protection element is provided with first pin (311) that is connected with first electrode (8) and second pin (312) that is connected or separates by release unit and second electrode (7) and is installed on the described box body, it is characterized in that:
Described release unit (4) is made up of stage clip (41), metal clips (42), slide block (43) and flexible conductor (44); Slide block (43) is installed in the chute of described box body setting, one end of stage clip (41) contacts with slide block (43), its other end is fixed on the box body, metal clips (42) is installed on the slide block, the one end is connected with flexible conductor (44), its other end is when overvoltage protection element is in normal condition and second pin (312) of overvoltage protection element welding, after overvoltage protection element is in abnormal condition and causes this end and second pin (312) of overvoltage protection element separates, by the effect of stage clip elastic restoring force to slide block, move to first limited wall (202) set on the box body by slide block drive metal clips and locate, flexible conductor (44) links to each other with second electrode (7);
Described arc-control device (5) is made up of moving block (51) and torsion spring (52); Moving block (51) is bar blocks, one end end is provided with electric arc reflecting plate (511), its other end end is provided with installing hole (514), it is provided with arcing chamber (512) near electric arc reflecting plate place, moving block is sleeved on set first bearing pin (204) of box body by the installing hole (514) that its end arranges, and be hinged with this bearing pin, described first bearing pin (204) the position is set: when overvoltage protection element is in normal condition, the right flank that moving block is provided with electric arc reflecting plate (511) one ends contacts with metal clips, the 3rd limited wall (208) that arranges on the left surface of moving block and the box body contacts, after overvoltage protection element is in abnormal condition and causes metal clips and overvoltage protection element separates, moving block turns to second limited wall (203) set on the box body when locating under the effect of torsion spring (52), the arcing chamber that arranges on the moving block (512) covers second pin (312) with overvoltage protection element after metal clips separates; Torsion spring (52) is installed on the moving block and with described first bearing pin (204) and links to each other.
2. according to the described surge protector of claim 1, it is characterized in that also comprising indicating device (6), described indicating device (6) comprises labelling piece (61), U-shaped ring (62) and extension spring (63), described labelling piece (61) is by the dial plate that is provided with green marked area and red marked area (611), mount pad and extension spring fixed leg (612) constitute, described dial plate (611) one ends and mount pad one end intersect the formation angle and are integrated, the place, top, angle angle that described dial plate and mount pad form is provided with U-shaped ring installing hole (615), described mount pad is provided with hinge hole (614), the free end end of mount pad is provided with spacing block set (613), and extension spring fixed leg (612) is positioned near the intersection of dial plate and mount pad and is fixed on the mount pad;
Described labelling piece (61) is sleeved on set second bearing pin (205) of box body by the hinge hole on its mount pad (614), and be hinged with this bearing pin, described U-shaped ring (62) is installed in the U-shaped ring installing hole (615) that labelling piece arranges and links to each other with slide block (43) in the release unit, one end of described extension spring (63) is fixed on the extension spring fixed leg (612) of labelling piece setting, and its other end is fixed on the steady pin (206) of box body setting; Be provided with the transparency window (12) that appears green marked area or red marked area at the top of described case body (11).
3. according to claim 1 or 2 described surge protectors, it is characterized in that described metal clips (42) is successively by leading arc termination (421), welding contact-making surface (422), linking arm (423), fixing termination (424) formation.
4. according to claim 1 or 2 described surge protectors, it is characterized in that described box body is provided with arc control device gas outlet (201), the position of the corresponding described arc control device of case body (11) gas outlet is provided with exhaust outlet (111).
5. according to the described surge protector of claim 3, it is characterized in that described box body is provided with arc control device gas outlet (201), the position of the corresponding described arc control device of case body (11) gas outlet is provided with exhaust outlet (111).
6. according to claim 1 or 2 described surge protectors; it is characterized in that described moving block (51) is provided with guide-track groove (513) between arcing chamber (512) and installing hole (514), the corresponding site of described box body is provided with the guide rail (207) with the guide-track groove coupling.
7. according to the described surge protector of claim 3; it is characterized in that described moving block (51) is provided with guide-track groove (513) between arcing chamber (512) and installing hole (514), the corresponding site of described box body is provided with the guide rail (207) with the guide-track groove coupling.
8. according to the described surge protector of claim 4; it is characterized in that described moving block (51) is provided with guide-track groove (513) between arcing chamber (512) and installing hole (514), the corresponding site of described box body is provided with the guide rail (207) with the guide-track groove coupling.
9. according to claim 1 or 2 described surge protectors, it is characterized in that the shell fragment that described metal clips (42) is made for sprung copper, flexible conductor 44 is the braiding annealed copper wire.
10. according to claim 1 or 2 described surge protectors, it is characterized in that the aerogenesis insulating material making of described shell (1), box body (2), slide block (43) and moving block (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123391.1A CN103198985B (en) | 2013-04-10 | 2013-04-10 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123391.1A CN103198985B (en) | 2013-04-10 | 2013-04-10 | Surge protection device |
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| Publication Number | Publication Date |
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| CN103198985A true CN103198985A (en) | 2013-07-10 |
| CN103198985B CN103198985B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310123391.1A Active CN103198985B (en) | 2013-04-10 | 2013-04-10 | Surge protection device |
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| CN (1) | CN103198985B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870902A (en) * | 2016-04-08 | 2016-08-17 | 上海优泰欧申机电有限公司 | Surge protection device for power supply |
| CN106298390A (en) * | 2016-10-17 | 2017-01-04 | 广西新全通电子技术有限公司 | A kind of novel surge protection device |
| CN106655091A (en) * | 2016-11-14 | 2017-05-10 | 深圳市瑞隆源电子有限公司 | Power supply type lightning protection device thermal disengagement apparatus |
| CN107946109A (en) * | 2017-12-23 | 2018-04-20 | 珠海德利和电气有限公司 | A kind of arrester arcing protective device |
| CN110335791A (en) * | 2019-09-01 | 2019-10-15 | 捷捷半导体有限公司 | A kind of failed open type protection device |
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| CN101834434A (en) * | 2009-07-27 | 2010-09-15 | 佛山市浦斯电子有限公司 | Surge protector with thermal protection device |
| CN203179824U (en) * | 2013-04-10 | 2013-09-04 | 四川中光防雷科技股份有限公司 | Surge protector |
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| FR2840448A1 (en) * | 2002-05-30 | 2003-12-05 | Schneider Electric Ind Sas | OVERVOLTAGE PROTECTION DEVICE |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870902A (en) * | 2016-04-08 | 2016-08-17 | 上海优泰欧申机电有限公司 | Surge protection device for power supply |
| CN106298390A (en) * | 2016-10-17 | 2017-01-04 | 广西新全通电子技术有限公司 | A kind of novel surge protection device |
| CN106655091A (en) * | 2016-11-14 | 2017-05-10 | 深圳市瑞隆源电子有限公司 | Power supply type lightning protection device thermal disengagement apparatus |
| CN106655091B (en) * | 2016-11-14 | 2019-07-09 | 深圳市瑞隆源电子有限公司 | A kind of hot release unit of lightning protection device of power supply class |
| CN107946109A (en) * | 2017-12-23 | 2018-04-20 | 珠海德利和电气有限公司 | A kind of arrester arcing protective device |
| CN110335791A (en) * | 2019-09-01 | 2019-10-15 | 捷捷半导体有限公司 | A kind of failed open type protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103198985B (en) | 2015-04-22 |
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