CN108735545B - Arc suppression coil's insulating support, explosion chamber contact and explosion chamber - Google Patents
Arc suppression coil's insulating support, explosion chamber contact and explosion chamber Download PDFInfo
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- CN108735545B CN108735545B CN201810614565.7A CN201810614565A CN108735545B CN 108735545 B CN108735545 B CN 108735545B CN 201810614565 A CN201810614565 A CN 201810614565A CN 108735545 B CN108735545 B CN 108735545B
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- 230000001629 suppression Effects 0.000 title claims abstract description 83
- 238000004880 explosion Methods 0.000 title claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to an insulating support of an arc suppression coil, an arc suppression chamber contact and an arc suppression chamber. Wherein the explosion chamber includes the explosion chamber contact, and the explosion chamber contact includes the contact seat, installs the insulating support on the contact seat and winds the arc suppression coil of establishing on the outer peripheral face of insulating support, and insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, be equipped with on the insulating support and carry out the coil location structure of fixing a position at least a circle coil that is located between the top of arc suppression coil and the bottom along insulating support's axial. The technical scheme is favorable for orderly arranging the turns of the arc suppression coil, improves the winding efficiency and the winding quality, and can avoid uneven or disordered winding of the coil caused by the diameter change of the winding part of the coil.
Description
Technical Field
The invention relates to an insulating support of an arc suppression coil, an arc suppression chamber contact and an arc suppression chamber.
Background
Along with the improvement of urban distribution networks and the improvement of power supply reliability requirements in China, the demand of looped network power supply equipment is further increased, and the requirements of intellectualization, long service life and high reliability are provided. Urban land resources are scarce, along with the manufacturing technology of switchgear advances, the miniaturization of equipment is becoming the development direction in the future, and the inflatable ring main unit can well adapt to the trend. The arc extinguishing mode of magnetic rotation arc extinction has the advantages of strong breaking capacity and long service life, and some arc extinguishing chambers and load switches using the magnetic rotation arc extinction technology for arc extinction already exist in the prior art.
For example, the chinese patent application with publication number CN106960755A and publication number 2017.07.18 discloses a contact system, and a single-pole arc-extinguishing chamber and a load switch using the contact system, where the load switch includes a three-phase single-pole arc-extinguishing chamber, and each single-pole arc-extinguishing chamber includes an insulating cylinder, and a moving contact and a fixed contact both disposed in the insulating cylinder. As shown in fig. 1, the static contact comprises a static contact seat 1, an insulating support 2, a static contact finger installed in the insulating support 2 and an arc suppression disc 3 installed above the insulating support 2, an arc suppression coil 4 is wound on the periphery of the insulating support 2, one end of the arc suppression coil 4 is welded with the arc suppression disc 3, and the other end of the arc suppression coil is fixed on the static contact seat 1 through a coil fastening screw 5.
Although the existing load switch has the capacity of switching on and off large current, the insulating support 2 is cylindrical and smooth in outer surface, and has no limit structure, so that the arc suppression coil 4 is difficult to wind tightly and uniformly, time and labor are wasted, the efficiency is low, and the switching-on and switching-off capacity of the arc suppression chamber is influenced if the arc suppression coil is not wound well. In addition, the wound arc suppression coil is wound into a cylindrical shape, the lower end of the coil is far away from the fracture of the arc suppression chamber, and a magnetic field generated by the lower end of the coil cannot be fully utilized in working.
Disclosure of Invention
The invention aims to provide an arc extinguish chamber, which is used for solving the problems of low installation efficiency and poor coil positioning of an arc extinguish coil on the existing arc extinguish chamber; the invention also aims to provide an arc extinguishing chamber contact used in an arc extinguishing chamber and an insulating support of an arc extinguishing coil.
In order to achieve the purpose, the technical scheme adopted by the arc extinguish chamber is as follows:
the explosion chamber, including the explosion chamber contact, the explosion chamber contact includes the contact seat, installs the insulating support on the contact seat and winds the arc suppression coil of establishing on the outer peripheral face of insulating support, and insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, be equipped with on the insulating support and carry out the coil location structure of fixing a position at least one circle coil that is located between arc suppression coil's top and bottom along insulating support's axial.
Has the advantages that: set up coil location structure and can fix a position the corresponding circle between the arc-extinguishing coil both ends, even only fix a position a circle, also can play the segmentation effect, realize the assistance-localization real-time to the coil of this circle axial both sides, compare with prior art, be favorable to arc-extinguishing coil's each circle to arrange neatly, improve winding efficiency and winding quality to can avoid coil winding inhomogeneous or in disorder that leads to because the diameter change of coil winding part. Preferably, the coil positioning structure can adopt a coil positioning structure for positioning each turn, and an optimal positioning effect can be achieved.
As a preferred technical scheme: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
The coil positioning structure is provided with a plurality of positions and adopts a structure which is arranged along the axial direction of the insulating support at intervals, so that the positioning at the plurality of positions can be realized, and the positioning effect is further improved.
On the basis of the coil positioning structure being provided in a form spaced apart in the axial direction: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
The spiral groove can form good guide for winding corresponding turns of the arc-extinguishing coil, and is simple in structure and good in positioning effect.
On the basis of the spiral groove: the depth of the spiral groove is smaller than the radius of the conducting wire of the arc suppression coil.
By adopting the scheme, the arc suppression coil can be wound more tightly, the space is fully utilized, and the arc suppression coil can be prevented from being damaged due to the fact that the arc suppression coil is embedded into the spiral groove too deeply.
As a preferred technical scheme: the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the top diameter larger than the bottom diameter.
Adopt the toper structure can reduce the coil distance interval at bottom from the fracture to the magnetic field that the lower extreme that can make full use of arc suppression coil produced compares with prior art and can improves arc suppression coil's arc extinguishing performance, perhaps reduces the size under the condition that the arc suppression performance is the same, saves space, and the toper structure is convenient for process, simple structure.
On the basis of adopting the conical structure: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
The equal-diameter part is arranged, so that stress concentration caused by sudden change of the bottom section of the insulating support can be avoided, and meanwhile, wiring of the lower end of the arc suppression coil is facilitated.
As a preferred technical scheme: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
The connecting flange is arranged to better adapt to the diameter change of the insulating support, so that the insulating support is convenient to fix.
On the basis of the arrangement of the connecting flange: and the contact seat is provided with a coil fixing screw, and the connecting flange is provided with an avoiding port for avoiding the coil fixing screw.
The arrangement of the avoiding port is convenient for fixing the end of the arc extinguishing coil, and the structure is neat.
As a preferred technical scheme: one of the bottom end face of the connecting flange and the top end face of the contact seat is provided with a positioning ring groove, the other one of the bottom end face of the connecting flange and the top end face of the contact seat is provided with a positioning bulge matched with the positioning ring groove, and the positioning bulge is embedded into the positioning ring groove and is in positioning fit with the positioning ring groove.
By adopting the technical scheme, the positioning precision of the insulating support can be improved, the position of the arc suppression coil is ensured, and the arc suppression performance is favorably ensured.
The technical scheme adopted by the arc extinguish chamber contact in the invention is as follows:
arc extinguishing chamber contact, including the contact seat, install the insulating support on the contact seat and around establishing the arc suppression coil on insulating support's outer peripheral face, insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, be equipped with on the insulating support and carry out the coil location structure of fixing a position along insulating support's axial to at least one circle coil that is located between arc suppression coil's top and bottom.
As a preferred technical scheme: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
On the basis of the coil positioning structure being provided in a form spaced apart in the axial direction: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
On the basis of the spiral groove: the depth of the spiral groove is smaller than the radius of the conducting wire of the arc suppression coil.
As a preferred technical scheme: the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the top diameter larger than the bottom diameter.
On the basis of adopting the conical structure: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
As a preferred technical scheme: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
On the basis of the arrangement of the connecting flange: and the contact seat is provided with a coil fixing screw, and the connecting flange is provided with an avoiding port for avoiding the coil fixing screw.
As a preferred technical scheme: the end face of one of the connecting flange and the contact seat is provided with a positioning ring groove, the corresponding end face of the other connecting flange is provided with a positioning bulge matched with the positioning ring groove, and the positioning bulge is embedded into the positioning ring groove and is in positioning fit with the positioning ring groove.
The technical scheme adopted by the insulating support of the arc suppression coil is as follows:
the insulating support of arc suppression coil, the insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, be equipped with on the insulating support and carry out the coil location structure of fixing a position along the axial of insulating support to at least one circle coil that is located between arc suppression coil's top and bottom.
As a preferred technical scheme: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
On the basis of the coil positioning structure being provided in a form spaced apart in the axial direction: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
On the basis of the spiral groove: the spiral groove is an arc-shaped groove, and the angle corresponding to the arc-shaped groove is smaller than a semicircle.
As a preferred technical scheme: the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the top diameter larger than the bottom diameter.
On the basis of adopting the conical structure: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
As a preferred technical scheme: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
On the basis of the arrangement of the connecting flange: the connecting flange is provided with an avoiding port for avoiding a coil fixing screw arranged on the contact seat.
As a preferred technical scheme: the insulating support is integrally cast and molded by epoxy resin.
Drawings
Fig. 1 is a schematic structural diagram of a fixed contact of a conventional arc extinguish chamber;
fig. 2 is a schematic structural diagram of a first embodiment of an arc chute contact of the present invention;
FIG. 3 is a front view of the insulating holder;
fig. 4 is a cross-sectional view of fig. 3.
In the figure: 1-contact seat, 2-insulating support, 3-arc suppression disc, 4-arc suppression coil, 5-coil fixing screw, 6-contact finger, 7-conical main body, 71-coil winding part, 72-equal diameter part, 8-connecting flange, 9-spiral groove, 10-avoidance opening, 11-positioning ring groove, 12-flange connecting hole, 13-arc suppression disc mounting hole and 14-positioning projection.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The first embodiment of the arc extinguish chamber contact disclosed by the invention comprises a contact seat 1, an insulating support 2, an arc extinguish disk 3, an arc extinguish coil 4 and a contact finger 6, as shown in figures 2 to 4. The insulating holder 2 is integrally molded from epoxy resin and includes a tapered body 7 and a connecting flange 8, and the outer peripheral surface of the tapered body 7 has a portion whose diameter gradually decreases in the top-to-bottom direction, which forms a coil winding portion 71 around which the arc-extinguishing coil is wound. In addition, the outer peripheral surface of the conical body 7 has an equal diameter portion 72 connected to the bottom end of the coil winding portion 71. The connecting flange 8 is arranged close to the small-diameter end of the conical main body 7, three evenly-distributed flange connecting holes 12 are formed in the connecting flange 8, and the insulators are fixed on the contact seat 1 through the flange connecting holes 12.
The upper end face of the insulating support 2 is provided with three arc extinguishing plate mounting holes 13 which are uniformly distributed, and the arc extinguishing plate 3 is fixed above the insulating support 2; the insulating support 2 has a cylindrical through hole inside, the diameter of which is slightly larger than the outer diameter of the contact finger 6, and the contact finger 6 is mounted in the insulating support 2. The outer peripheral surface of the conical main body 7 is provided with a spiral groove 9, the arc suppression coil 4 is wound on the outer peripheral surface of the insulating support 2 along the spiral groove 9, and the arc suppression coil 4 is a copper enameled wire.
One end of an arc suppression coil 4 is welded with the arc suppression disc 3, and the other end of the arc suppression coil is fixed on the contact seat 1 through a coil fixing screw 5 to form a conductive loop; the connecting flange 8 is provided with an avoiding opening 10 for avoiding the coil fixing screw 5. Furthermore, the lower end face of the connecting flange 8 is provided with a positioning ring groove 11, the top face of the contact seat 1 is provided with a positioning protrusion 14 matched with the positioning ring groove 11, and the positioning ring groove 11 is matched with the positioning protrusion 14 during installation, so that the insulating support 2 is conveniently fixed on the contact seat 1.
In order to enable the arc suppression coil 4 to be tightly wound on the insulating support 2, the length of the coil may be determined in advance, and the arc suppression coil 4 is wound rotatably from top to bottom along the spiral groove 9 on the insulating support 2. Of course, it is also possible to use longer copper enameled wires, and to cut off the remaining portion as required after winding is completed.
When the load switch is switched on and off, along with the upward movement of the movable contact, part of electric arcs between the movable contact and the fixed contact are transferred to the arc extinguishing disc 3 through the contact fingers 6, the electric arc current forms a conductive loop through the arc extinguishing disc 3, the arc extinguishing coil 4 and the contact seat 1, so that the arc extinguishing coil 4 generates a magnetic field, the electric arcs rotate at a high speed under the action of Lorentz force of the magnetic field and are elongated, the ablation of the arc extinguishing disc 3 is weakened due to the rotation of the electric arcs, and finally the electric arcs are gradually extinguished when the current crosses zero points.
Compared with the prior art, due to the limit of the spiral groove 9, the coil cannot be loosened, the winding speed of the coil can be greatly increased, the working efficiency is improved, and after the winding is finished, the intervals among all parts of the arc suppression coil 4 are uniform, and the winding quality of the coil is improved.
In addition, the insulating support 2 is of a conical structure, the distance between the lower end of the arc suppression coil 4 and the fracture of the arc extinguishing chamber is short, the magnetic field at the fracture is greatly enhanced, the generated Lorentz force is also increased, the rotating speed of the arc is increased, and the breaking current capacity of the arc extinguishing chamber is enhanced.
In other embodiments, the outer circumferential surface of the coil winding portion 71 may be provided with other types of positioning structures than a spiral groove, and the arc suppression coil may be positioned in the axial direction of the insulating support by the positioning structures. For example, a plurality of buckles are arranged on the outer peripheral surface of the insulating support, the buckles are arranged at intervals in a spiral shape, and the corresponding part of the arc suppression coil is clamped into the buckle during assembly, so that the coil positioning is realized; for another example, the buckles are arranged in rows along the axial direction of the insulating support, and the local part of each circle of arc suppression coil is clamped into the buckle to realize positioning, or the local part of a part of circle of arc suppression coil is clamped into the buckle to realize positioning; for another example, the insulating support is set to be in a form of smooth peripheral surface, a positioning sleeve is sleeved on the insulating support, and a positioning structure used for positioning the arc suppression coil along the axial direction of the insulating support is arranged on the positioning sleeve; for another example, the insulation support is provided with a needle-shaped protrusion as a positioning structure, and each turn or a part of the turns of the arc-extinguishing coil is positioned along the axial direction of the insulation support by virtue of the needle-shaped protrusion.
In addition, in other embodiments, the insulating support may also adopt a cylindrical structure in the prior art. In other embodiments, the entire conical body may be a coil winding portion, and the constant diameter portion 72 in the first embodiment may be omitted. In addition, the insulating support can be arranged into a split structure, the conical main body of the insulating support is detachably connected with the connecting flange, and the manufacturing difficulty of the insulating support is reduced. In other embodiments, if the arc suppression coil and the insulating support are arranged on the movable contact of the arc suppression chamber, the contact of the arc suppression chamber in the patent can also be a movable contact.
According to the embodiment of the arc extinguish chamber, the arc extinguish chamber comprises the cylinder body and the arc extinguish chamber contacts arranged at two ends of the cylinder body, wherein the arc extinguish chamber contacts are the arc extinguish chamber contacts in any embodiment of the arc extinguish chamber contacts, and specific structures are not repeated herein.
In the embodiment of the insulating support of the arc extinguishing coil, the structure of the insulating support is the same as that of the insulating support in any embodiment of the arc extinguishing chamber contact, and the specific structure is not described again.
Finally, 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 without departing from the inventive concept, or some of the technical features may be replaced with equivalents. 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 (24)
1. The explosion chamber, including the explosion chamber contact, the explosion chamber contact includes the contact seat, installs the insulating support on the contact seat and around establishing the arc suppression coil on the outer peripheral face of insulating support, and the insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, its characterized in that: the insulation support is provided with a coil positioning structure for positioning at least one turn of coil between the top end and the bottom end of the arc extinguishing coil along the axial direction of the insulation support; the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the diameter of the top larger than that of the bottom; the insulating bracket is internally provided with a cylindrical through hole; the wall thickness of the coil wound portion of the insulating support is gradually reduced in a top-to-bottom direction.
2. Arc chute according to claim 1, characterized in that: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
3. Arc chute according to claim 2, characterized in that: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
4. Arc chute according to claim 3, characterized in that: the depth of the spiral groove is smaller than the radius of the conducting wire of the arc suppression coil.
5. Arc chute according to claim 1, characterized in that: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
6. Arc chute according to any one of claims 1 to 4, characterized in that: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
7. The arc chute of claim 6, characterized in that: and the contact seat is provided with a coil fixing screw, and the connecting flange is provided with an avoiding port for avoiding the coil fixing screw.
8. The arc chute of claim 6, characterized in that: one of the bottom end face of the connecting flange and the top end face of the contact seat is provided with a positioning ring groove, the other one of the bottom end face of the connecting flange and the top end face of the contact seat is provided with a positioning bulge matched with the positioning ring groove, and the positioning bulge is embedded into the positioning ring groove and is in positioning fit with the positioning ring groove.
9. Explosion chamber contact, including the contact seat, install the insulating support on the contact seat and around establishing the arc suppression coil on insulating support's outer peripheral face, insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, its characterized in that: the insulation support is provided with a coil positioning structure for positioning at least one turn of coil between the top end and the bottom end of the arc extinguishing coil along the axial direction of the insulation support; the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the diameter of the top larger than that of the bottom; the insulating bracket is internally provided with a cylindrical through hole; the wall thickness of the coil wound portion of the insulating support is gradually reduced in a top-to-bottom direction.
10. Arc chute contact according to claim 9, characterized in that: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
11. Arc chute contact according to claim 10, characterized in that: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
12. Arc chute contact according to claim 11, characterized in that: the depth of the spiral groove is smaller than the radius of the conducting wire of the arc suppression coil.
13. Arc chute contact according to claim 9, characterized in that: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
14. Arc chute contact according to any of claims 9 to 12, characterized in that: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
15. The arcing chamber contact according to claim 14, wherein: and the contact seat is provided with a coil fixing screw, and the connecting flange is provided with an avoiding port for avoiding the coil fixing screw.
16. The arcing chamber contact according to claim 14, wherein: the end face of one of the connecting flange and the contact seat is provided with a positioning ring groove, the corresponding end face of the other connecting flange is provided with a positioning bulge matched with the positioning ring groove, and the positioning bulge is embedded into the positioning ring groove and is in positioning fit with the positioning ring groove.
17. Arc suppression coil's insulating support, insulating support has the top that is close to the fracture and keeps away from the bottom of fracture, its characterized in that: the insulation support is provided with a coil positioning structure for positioning at least one turn of coil between the top end and the bottom end of the arc extinguishing coil along the axial direction of the insulation support; the peripheral surface of the insulating support is provided with a coil winding part for winding the arc suppression coil, and the coil winding part is of a conical structure with the diameter of the top larger than that of the bottom; the insulating bracket is internally provided with a cylindrical through hole; the wall thickness of the coil wound portion of the insulating support is gradually reduced in a top-to-bottom direction.
18. An insulating support for an arc suppression coil as claimed in claim 17, wherein: the coil positioning structures are arranged at intervals along the axial direction of the insulating support.
19. An insulating support for an arc suppression coil as claimed in claim 18, wherein: and a spiral groove for guiding the arc suppression coil to be wound on the insulating support is arranged on the outer peripheral surface of the insulating support, and the spiral groove forms the coil positioning structure.
20. An insulating support for an arc suppression coil as claimed in claim 19, wherein: the spiral groove is an arc-shaped groove, and the angle corresponding to the arc-shaped groove is smaller than a semicircle.
21. An insulating support for an arc suppression coil as claimed in claim 17, wherein: the outer peripheral surface of the insulating support has an equal diameter portion connected to the bottom end of the coil winding portion.
22. An insulating support for an arc suppression coil as claimed in any one of claims 17 to 20, wherein: and the bottom of the insulating support is provided with a connecting flange used for being connected with a corresponding contact seat.
23. An insulating support for an arc suppression coil as claimed in claim 22, wherein: the connecting flange is provided with an avoiding port for avoiding a coil fixing screw arranged on the contact seat.
24. An insulating support for an arc suppression coil as claimed in any one of claims 17 to 20, wherein: the insulating support is integrally cast and molded by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614565.7A CN108735545B (en) | 2018-06-14 | 2018-06-14 | Arc suppression coil's insulating support, explosion chamber contact and explosion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614565.7A CN108735545B (en) | 2018-06-14 | 2018-06-14 | Arc suppression coil's insulating support, explosion chamber contact and explosion chamber |
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| Publication Number | Publication Date |
|---|---|
| CN108735545A CN108735545A (en) | 2018-11-02 |
| CN108735545B true CN108735545B (en) | 2020-04-10 |
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| CN201810614565.7A Active CN108735545B (en) | 2018-06-14 | 2018-06-14 | Arc suppression coil's insulating support, explosion chamber contact and explosion chamber |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113331950B (en) * | 2021-06-29 | 2023-07-25 | 杭州德诺脑神经医疗科技有限公司 | Conveying turntable, catheter storage conveying device and catheter controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273977A (en) * | 1977-08-31 | 1981-06-16 | Mitsubishi Denki Kabushiki Kaisha | Circuit interrupter |
| JP3407543B2 (en) * | 1996-05-28 | 2003-05-19 | 株式会社高岳製作所 | Arc extinguishing room |
| CN105448585B (en) * | 2015-12-04 | 2019-02-01 | 天津平高智能电气有限公司 | A kind of contact assembly of arc-chutes and arc-chutes using the contact assembly |
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2018
- 2018-06-14 CN CN201810614565.7A patent/CN108735545B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224904A (en) * | 1998-01-27 | 1999-08-04 | 施耐德电器公司 | Extinguishing chamber for circuit breaker with self-extinguishing expansion and rotating arc |
| CN102735974A (en) * | 2012-06-29 | 2012-10-17 | 中国科学院电工研究所 | Coil for measuring quench propagation speed of superconductive wire |
| CN106158227A (en) * | 2016-08-30 | 2016-11-23 | 贵州新安航空机械有限责任公司 | A kind of electromagnetic valve coil skeleton structure |
| CN106960755A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | A kind of contact system and the monopole arc-chutes and on-load switch using the contact system |
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