CN209981044U - Surge protection device with good arc extinguishing effect - Google Patents
Surge protection device with good arc extinguishing effect Download PDFInfo
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- CN209981044U CN209981044U CN201921195211.XU CN201921195211U CN209981044U CN 209981044 U CN209981044 U CN 209981044U CN 201921195211 U CN201921195211 U CN 201921195211U CN 209981044 U CN209981044 U CN 209981044U
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Abstract
The utility model discloses a surge protector with good arc extinguishing effect, which comprises a protector body, wherein the outer surface edge part of the protector body is sleeved with a shell, the front edge part of the shell is provided with a groove, the four corners of the bottom end of the groove are provided with positioning holes, the middle part of the inner wall of the positioning holes is provided with a positioning pin, one end of the positioning pin is connected with a rectangular frame, and the middle end of the outer surface of the rectangular frame is provided with a dust-proof groove, the utility model has scientific and reasonable structure and safe and convenient use, and the arc is divided into a plurality of sections by an arc-extinguishing cover, a metal arc grid, an arc-extinguishing box, a square hole, a connecting column, a vent hole and an insulating arc-extinguishing grid so as to facilitate arc extinguishing, and the arc which is divided into a plurality of sections by the arc-extinguishing cover is cooled to form cooling and arc extinguishing, and the residual arc enters the insulating, the arc extinguishing effect is improved, and the electric arc of the surge protector is effectively extinguished.
Description
Technical Field
The utility model relates to a surge protector technical field specifically is a surge protector that arc extinguishing effect is good.
Background
The surge protector is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines, when a large overload current flows in the using process, the solder between the metal elastic sheet arranged in the surge protector and the pins of the overvoltage protection element is molten or melted, so that the metal elastic sheet is separated from the pins of the overvoltage protection element and the spacing distance is enlarged, the metal elastic sheet and the pins of the overvoltage protection element are separated from each other for electrical isolation, the function of protecting the equipment is achieved, an electric arc is generated between the metal elastic sheet and the pins of the overvoltage protection element at the separation moment, when the electric arc enters the arc extinguishing grid, the arc extinguishing grid cuts the electric arc into a plurality of short arcs, the voltage drop on the electric arc is approximately increased by a plurality of times, and the electric arc cannot be burnt and is quickly extinguished;
therefore, the Chinese patent discloses a surge protector, the publication number of which is (CN 207234392U), the arc extinguishing is carried out in a stepping mode, the arc extinguishing distance is increased, and an arc extinguishing hole is arranged outside the arc extinguishing hole, so that under the condition that the arc is gradually weakened along with the distance, the arc is guided out from the protector, the arc extinguishing effect is improved, and the arc of the surge protector is effectively extinguished;
although the arc extinguishing grid can extinguish the electric arc in the surge protector, the arc extinguishing speed is too slow because no device for limiting and cooling the electric arc is arranged in the extinguishing process of the electric arc.
SUMMERY OF THE UTILITY MODEL
The utility model provides an effectual surge protector of arc extinguishing can effectively solve this patent that proposes in the above-mentioned background art and utilize the arc extinguishing bars though can extinguish the inside electric arc of surge protector, but electric arc is at the in-process of extinguishing, does not have electric arc to carry out spacing and device of cooling, leads to electric arc to extinguish the problem that speed is too slow.
In order to achieve the above object, the utility model provides a following technical scheme: a surge protector with a good arc extinguishing effect comprises a protector body, wherein a shell is sleeved on the edge of the outer surface of the protector body, a groove is formed in the edge of the front surface of the shell, positioning holes are formed in the four corners of the bottom end of the groove, positioning pins are arranged in the middle of the inner wall of each positioning hole, one end of each positioning pin is connected with a rectangular frame, a dust-proof groove is formed in the middle end of the outer surface of each rectangular frame, and one end of each rectangular frame is connected with an;
protector body one side fixedly connected with arc-extinguishing box, the bleeder vent has been seted up to arc-extinguishing box inner wall one side, arc-extinguishing box top mid-mounting has insulating arc-extinguishing bars, arc-extinguishing box top both sides correspond metal arc bars both ends position department and all install the arc-extinguishing cover, the equal equidistance in arc-extinguishing cover surface middle part has seted up the square hole, two square hole inner wall middle part all is provided with the spliced pole, spliced pole one end is connected with insulating arc-extinguishing bars.
Preferably, the outer diameter of the connecting column is equal to the inner diameter of the square hole, and the connecting column is located in the middle of the inner portion of the square hole.
Preferably, the positioning pin is conical in shape, and the diameter of the back surface of the positioning pin is smaller than that of the front surface of the positioning pin.
Preferably, the two arc extinguishing chambers are connected through a metal arc grid, and the middle part of the inner wall of the arc extinguishing box is of a hollow structure.
The protector comprises a protector body and is characterized in that a graphite heat-conducting plate is mounted in the middle of the back of the protector body, a placing cavity is formed between the graphite heat-conducting plate and a shell, round holes are formed in the middle of the back of the shell at equal intervals, and a graphite heat-conducting column is mounted in the middle of the inner wall of each round hole.
Preferably, the graphite heat-conducting column is located in the middle of the inner wall of the circular hole, and one end of the circular hole is attached to the graphite heat-conducting plate.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:
1. through arc-extinguishing cover, metal arc bars, arc-extinguishing box, square hole, spliced pole, bleeder vent, insulating arc-extinguishing bars, utilize metal arc bars to divide into a plurality of sections with electric arc to the benefit is put out an arc, and utilize the arc-extinguishing cover to cool down the electric arc of dividing into a plurality of sections, form the cooling arc-extinguishing, and remaining electric arc enters into inside the insulating arc-extinguishing bars, thereby make electric arc and fixed medium contact, make electric arc lengthen and cool off rapidly, improved the effect of arc-extinguishing, effectively extinguish surge protector's electric arc.
2. Through shell, recess, end cover, locating hole, locating pin, rectangle frame and dust-proof groove, the installation between shell and the end cover of can being convenient for has reduced the installation degree of difficulty between end cover and the shell, simultaneously, can prevent that external dust from entering into inside the shell, and then has reduced the produced interference of dust to the device.
3. Through the graphite heat-conducting plate, place cavity, round hole and graphite heat conduction post, the heat conduction of the time of protector body can be to the shell back to the graphite heat-conducting plate, and the heat on graphite heat conduction post surface is taken away in external air flow to can carry out rapid cooling to the protector body, reduce the temperature of protector body when operation, and then increase the time of protector body when operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the mounting structure of the housing of the present invention;
FIG. 3 is a schematic view of the installation structure of the positioning pin of the present invention;
FIG. 4 is a schematic view of the installation structure of the graphite heat-conducting column of the present invention;
FIG. 5 is a schematic view of the area A in FIG. 3 according to the present invention;
reference numbers in the figures: 1. a protector body; 2. a housing; 3. a groove; 4. an end cap; 5. positioning holes; 6. positioning pins; 7. a rectangular frame; 8. a dust-proof groove; 9. an arc extinguishing chamber; 10. a metal arc grid; 11. an arc extinguishing chamber; 12. a square hole; 13. connecting columns; 14. air holes are formed; 15. an insulated arc chute; 16. a graphite heat-conducting plate; 17. placing a chamber; 18. a circular hole; 19. graphite heat conduction post.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1-5, the utility model provides a technical scheme, a surge protector that arc extinguishing effect is good, including protector body 1, 1 surface edge portion of protector body has cup jointed shell 2, 2 positive edge portions of shell have seted up recess 3, 3 bottom four corners departments of recess have all seted up locating hole 5, 5 inner walls middle parts of locating hole are provided with locating pin 6, the shape of locating pin 6 is the toper, 6 back diameters of locating pin are less than the front diameter, can be convenient for locating pin 6 to enter into inside locating hole 5, the connection degree of difficulty between locating pin 6 and the locating hole 5 has been reduced, 6 one end of locating pin is connected with rectangle frame 7, dust groove 8 has been seted up to 7 surface middle ends of rectangle frame, 7 one end of rectangle frame is connected with end.
An arc extinguishing box 11 is fixedly connected to one side of a protector body 1, an air vent 14 is formed in one side of the inner wall of the arc extinguishing box 11, an insulating arc extinguishing grid 15 is installed in the middle of the top end of the arc extinguishing box 11, arc extinguishing covers 9 are installed on two sides of the top end of the arc extinguishing box 11 corresponding to two ends of a metal arc grid 10, the two arc extinguishing covers 9 are connected through the metal arc grid 10, the middle of the inner wall of the arc extinguishing box 11 is of a hollow structure, the metal arc grid 10 can be conveniently installed and detached, the installation and detachment difficulty of the metal arc grid 10 is reduced, the metal arc grid 10 can be conveniently replaced, the replacement difficulty of the metal arc grid 10 is reduced, square holes 12 are formed in the middle of the outer surface of the arc extinguishing cover 9 at equal intervals, connecting columns 13 are arranged in the middle of the inner walls of the two square holes 12, the outer diameters of the connecting columns 13 are equal to the inner diameters of the square holes 12, the connecting columns 13, the connecting column 13 is made of ceramic, short arcs of the metal arc grids 10 can be extinguished through the ceramic, and one end of the connecting column 13 is connected with the insulating arc-extinguishing grid 15.
The back mid-mounting of protector body 1 has graphite heat-conducting plate 16, has seted up between graphite heat-conducting plate 16 and the shell 2 and has placed cavity 17, and 2 back middle parts of shell are impartial apart from having seted up round hole 18, and 18 inner wall mid-mounting of round hole have graphite heat conduction post 19, and graphite heat conduction post 19 is located 18 inner wall middle parts of round hole, laminates each other between 18 one end of round hole and the graphite heat-conducting plate 16, can carry on spacingly to graphite heat conduction post 19, prevents that the phenomenon that the position of graphite heat conduction post.
The utility model discloses a theory of operation and use flow: in the actual installation process of the surge protector with good arc extinguishing effect, the protector body 1 and the shell 2 are installed, then the rectangular frame 7 on the inner wall of the end cover 4 is placed into the groove 3, when the rectangular frame 7 enters the groove 3, the rectangular frame 7 drives the dust-proof groove 8 to enter the groove 3, so that the positioning pin 6 enters the positioning hole 5, meanwhile, the rectangular frame 7 completely enters the groove 3, so that the shell 2 and the end cover 4 are in a fit state, the installation between the shell 2 and the end cover 4 can be facilitated, the installation difficulty between the end cover 4 and the shell 2 is reduced, meanwhile, external dust can be prevented from entering the shell 2, and the interference of the dust on the device is reduced;
when the protector body 1 is started, the solder between the metal elastic sheet and the overvoltage protection element pin arranged in the protector body 1 is molten or molten, so that the metal elastic sheet and the overvoltage protection element pin are separated and the spacing distance is enlarged, the metal elastic sheet and the overvoltage protection element pin are separated to be electrically isolated, thereby achieving the function of protecting equipment, and an electric arc is generated between the metal elastic sheet and the overvoltage protection element pin at the moment of separation, when the electric arc enters the metal arc grid 10, the metal arc grid 10 cuts the electric arc into a plurality of short arcs, and the short arcs enter the surface of the arc extinguishing cover 9 along the metal arc grid 10, the installation between the metal arc grid 10 and the arc extinguishing cover 9 can be facilitated by utilizing the matching between the square hole 12 and the connecting column 13, the installation difficulty between the metal arc grid 10 and the arc extinguishing cover 9 is reduced, the temperature of the short arcs can be reduced by the arc extinguishing cover 9, thereby accelerating the extinguishing speed of the electric arc, when part of the uninextinguish electric arc is conducted to the surface of the insulated arc-extinguishing grid 15, the electric arc is contacted with a fixed medium, the electric arc is elongated and rapidly cooled, the arc-extinguishing effect is improved, the electric arc of the surge protector is effectively extinguished, the insulated arc-extinguishing grid 15 can be supported and limited by utilizing the air holes 14 in the arc-extinguishing box 11, and the phenomenon that the position of the insulated arc-extinguishing grid 15 moves is prevented;
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an effectual surge protector of arc extinguishing, includes protector body (1), its characterized in that: the protector comprises a protector body (1), a shell (2) is sleeved on the edge of the outer surface of the protector body (1), a groove (3) is formed in the edge of the front face of the shell (2), positioning holes (5) are formed in four corners of the bottom end of each groove (3), a positioning pin (6) is arranged in the middle of the inner wall of each positioning hole (5), one end of each positioning pin (6) is connected with a rectangular frame (7), a dust-proof groove (8) is formed in the middle end of the outer surface of each rectangular frame (7), and one end of each rectangular frame (;
protector body (1) one side fixedly connected with arc extinguishing box (11), bleeder vent (14) have been seted up to arc extinguishing box (11) inner wall one side, arc extinguishing box (11) top mid-mounting has insulating arc extinguishing bars (15), arc extinguishing box (11) top both sides correspond metal arc bars (10) both ends position department and all install arc extinguishing chamber (9), square hole (12), two have been seted up to arc extinguishing chamber (9) surface middle part equal equidistance square hole (12) inner wall middle part all is provided with spliced pole (13), spliced pole (13) one end is connected with insulating arc extinguishing bars (15).
2. A surge protector with good arc extinguishing effect according to claim 1, wherein: the outer diameter of the connecting column (13) is equal to the inner diameter of the square hole (12), and the connecting column (13) is located in the middle of the inside of the square hole (12).
3. A surge protector with good arc extinguishing effect according to claim 1, wherein: the positioning pin (6) is conical, and the diameter of the back face of the positioning pin (6) is smaller than that of the front face of the positioning pin.
4. A surge protector with good arc extinguishing effect according to claim 1, wherein: the two arc extinguishing chambers (9) are connected through a metal arc grid (10), and the middle part of the inner wall of the arc extinguishing box (11) is of a hollow structure.
5. A surge protector with good arc extinguishing effect according to claim 1, wherein: the protector is characterized in that a graphite heat-conducting plate (16) is installed in the middle of the back of the protector body (1), a placing cavity (17) is formed between the graphite heat-conducting plate (16) and the shell (2), a round hole (18) is formed in the middle of the back of the shell (2) at equal intervals, and a graphite heat-conducting column (19) is installed in the middle of the inner wall of the round hole (18).
6. A surge protector with good arc extinguishing effect according to claim 5, wherein: the graphite heat-conducting column (19) is positioned in the middle of the inner wall of the round hole (18), and one end of the round hole (18) is attached to the graphite heat-conducting plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195211.XU CN209981044U (en) | 2019-07-27 | 2019-07-27 | Surge protection device with good arc extinguishing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921195211.XU CN209981044U (en) | 2019-07-27 | 2019-07-27 | Surge protection device with good arc extinguishing effect |
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| Publication Number | Publication Date |
|---|---|
| CN209981044U true CN209981044U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921195211.XU Active CN209981044U (en) | 2019-07-27 | 2019-07-27 | Surge protection device with good arc extinguishing effect |
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| Country | Link |
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| CN (1) | CN209981044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682516A (en) * | 2020-05-18 | 2020-09-18 | 海南华伟声电技术有限公司 | Split type surge protector |
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2019
- 2019-07-27 CN CN201921195211.XU patent/CN209981044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682516A (en) * | 2020-05-18 | 2020-09-18 | 海南华伟声电技术有限公司 | Split type surge protector |
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