CN218887080U - Static contact bridge structure - Google Patents
Static contact bridge structure Download PDFInfo
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- CN218887080U CN218887080U CN202223216771.3U CN202223216771U CN218887080U CN 218887080 U CN218887080 U CN 218887080U CN 202223216771 U CN202223216771 U CN 202223216771U CN 218887080 U CN218887080 U CN 218887080U
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Abstract
The utility model discloses a static contact bridge structure, including static contact, run-on plate, the static contact is including the first horizontal section, the horizontal section of second and connecting the vertical section between first horizontal section one end and the horizontal section one end of second along vertical parallel distribution setting, and first horizontal section is located the top of the horizontal section of second, the interval is formed with the storage tank between first horizontal section one end and the horizontal section one end of second, the one end of run-on plate is including the cartridge supporting part in the storage tank, the last lower extreme of this supporting part constitutes the support cooperation with first horizontal section, the horizontal section of second respectively. The utility model discloses a static contact bridge structure simple structure, reliability are stronger and have better striking effect.
Description
Technical Field
The utility model relates to a static bridge structure that touches.
Background
The static contact bridge is one of the parts of the contactor, is arranged between the movable contact bridge and the arc extinguish chamber, and has the functions of being matched with the static contact bridge to be switched on and off, being connected with a wiring terminal, leading electric arcs generated during breaking into the arc extinguish chamber and the like. For example, in an arc extinguishing device (CN 2415444Y) of an ac contactor contact disclosed in the chinese utility model patent, it includes a cover plate and an arc extinguishing chamber, the cover plate and the arc extinguishing chamber form an arc extinguishing chamber, an arc striking plate is provided above a movable contact bridge, longitudinal and transverse grids are provided on both sides of the arc striking plate, the arc striking plate is fixed on a stationary contact bridge by screws and faces the contact, when the movable contact bridge and the stationary contact bridge are separated, an arc is generated between the contacts, the arc is rapidly pulled out from between the contacts under the action of the arc striking plate and the transverse grid, and is sucked by the longitudinal grid, and is divided into a plurality of short arcs, when the circuit in the circuit passes through zero, the arc will be easily extinguished, the arc and free gas are cooled through the longitudinal grid, the transverse grid and the narrow slit, and the circuit is separated.
The prior art represented by the above patent documents has the following drawbacks:
(1) The static contact bridge (namely a static contact piece) and the shell of the contactor are fixedly installed in a matched mode, when the contactor is attracted, the static contact bridge can be subjected to large impact force, connection between the static contact bridge and the shell is easy to loose after long-term use, even the static contact bridge is deformed and damaged, and reliability and service life of a product are affected;
(2) The static contact bridge and the transverse grid (namely the arc striking plate) are not tightly matched, and the arc striking effect needs to be improved;
(3) The periphery of the static contact bridge is lack of a magnetic conduction structure capable of increasing magnetic blowing force, and the magnetic blowing force is weak, so that the moving speed of the electric arc is influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a reliability is stronger and have better striking effect's stationary contact bridge structure.
In order to realize the above-mentioned purpose, the utility model provides a static bridge structure that touches, including static contact, run-on arc piece, the static contact is including the first horizontal section, the horizontal section of second that set up along vertical parallel distribution and connect the vertical section between first horizontal section one end and the horizontal section one end of second, and first horizontal section is located the top of the horizontal section of second, the interval is formed with the storage tank between first horizontal section one end and the horizontal section one end of second, the one end of run-on arc piece is including the cartridge supporting part in the storage tank, the last lower extreme of this supporting part constitutes the support cooperation with first horizontal section, the horizontal section of second respectively.
Furthermore, the other end of the arc striking plate comprises a longitudinally extending arc extinguishing plate, and the arc striking plate and the arc extinguishing plate are integrally connected through an arc connecting section.
Further, one end of the arc striking piece is provided with a notch for dividing the electric arc at a position corresponding to between one end of the second transverse section and the lower end of the second transverse section.
Furthermore, the notch is of a triangular structure, the large end of the notch extends to one end of the second transverse section, an opening is formed at one end of the second transverse section, and the small end of the notch extends towards the other end of the arc striking plate.
Furthermore, the supporting part is positioned above one end of the arc ignition piece, and the other end of the second transverse section is inserted between the supporting part and one end of the arc ignition piece along the opening.
Further, the lower end of the second transverse section is provided with a silver contact which is correspondingly arranged in the notch.
Furthermore, the lower end of the second transverse section is provided with a stepped groove which is aligned with the silver contact in a matching manner.
Furthermore, the lower extreme of first horizontal section is provided with first lug, the upper end of supporting part is provided with the guide slot of pegging graft with first lug cooperation direction.
Furthermore, a screw hole is arranged on the first bump in a penetrating manner.
Furthermore, the supporting portion on be provided with the second lug, run through on the second lug and be provided with the screw, the second lug can play the effect of bearing the weight of the screw, increases the degree of depth of screw, the correspondence is provided with the through-hole on the first horizontal section.
The beneficial effects of the utility model are that: the utility model discloses a static contact bridge simple structure, simple to operate, the supporting part of run-on piece one end can be used for forming reliable support to the one end of static contact piece, improves the structural strength and the reliability of static contact piece to because the cooperation is inseparable between run-on piece and the static contact piece, can improve the run-on effect. In addition, based on the electromagnetism principle can know, can produce magnetic field when electric current passes through between first horizontal section, the horizontal section of second and the vertical section, and the supporting part that sets up in the storage tank can regard as the magnetic conduction structure to use, can increase magnetism and blow the power effect, improves electric arc moving speed.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
fig. 2 is a cross-sectional view of an embodiment of the present invention;
fig. 3 is an exploded view of an embodiment of the present invention.
Detailed Description
The utility model discloses an embodiment of static contact bridge structure is shown in fig. 1-3, including static contact 1, run-on arc piece 2, static contact 1 is including the first horizontal section 11 along vertical parallel distribution setting, the horizontal section 12 of second, and connect the vertical section 13 between the horizontal section 12 one end of first horizontal section 11 one end and second, form the structure of bending back between first horizontal section 11, the horizontal section 12 of second and the vertical section 13, can form magnetic field when the electric current process based on the electromagnetism principle, and then form the magnetic blow effect, improve the moving speed of electric arc, first horizontal section 11 is located the top of the horizontal section 12 of second, the first horizontal section 11 of static contact 1, the horizontal section 12 of second and vertical section 13 are integrated into one piece, can the shaping through carrying out bending process to the work piece of bar, wear to establish in the outside of contactor casing when the other end practical application of the horizontal section of second, and be used for the wiring. The interval is formed with storage tank 10 between first transverse section 11 one end and the 12 one end of second transverse section, the one end of striking piece 2 is including the cartridge supporting part 21 in storage tank 10, the upper and lower end of this supporting part 21 constitutes the support cooperation (see fig. 2) with first transverse section 11, the horizontal section 12 of second respectively, the setting of supporting part 21 can be used for supporting the horizontal section 12 of second when the movable contact bridge of contactor is inhaled, avoids the deformation damage of static contact 1 one end to improve the structural strength of static contact 1, improve the life of contactor product. And because adopt above-mentioned this kind of connection structure between static contact 1 and the arc piece 2, can make to be connected more closely between static contact 1 and the arc piece 2, avoid electric arc to follow the clearance migration between static contact 1 and the arc piece 2. In addition, the support portion 21 can also function as a magnetic conductive structure, and the above-described magnetic blowing effect can be further improved.
The other end of striking piece 2 is including longitudinal extension's arc extinguishing piece 22, through 23 a body couplings of curved linkage segment between striking piece 2 and the arc extinguishing piece 22, simple structure can be shaping through carrying out bending process to the work piece of bar, convenient production and processing, arc extinguishing piece 22 cartridge when practical application has constituted the arc extinguishing bars piece among the contactor arc extinguishing system in the explosion chamber of contactor, can eliminate in introducing the explosion chamber with electric arc, can improve striking and arc extinguishing effect.
The one end of striking piece 2 sets up the breach 20 that is used for cutting apart electric arc in the position between the one end that corresponds second horizontal section 12 and the lower extreme of second horizontal section 12, and this breach 20's setting can cut off it in advance before electric arc enters into the explosion chamber along striking piece 2, separates into little electric arc with big electric arc to improvement arc extinguishing effect that can step forward. Meanwhile, the arrangement of the notch 20 can also increase the contact surface of the arc striking plate 2, and improve the heat dissipation effect of the arc striking plate 2.
The notch 20 is a triangular structure, the large end of the notch 20 extends to one end of the second transverse section 12, an opening 201 is formed at one end of the second transverse section 12, and the small end of the notch 20 extends towards the other end of the arc ignition piece 2, so that the width of the notch 20 is gradually narrowed towards the other end of the arc ignition piece 2, and the arc cutting effect is improved.
The supporting part 21 is located the top of the one end of the arc striking piece 2, the other end of the second transverse section 12 is inserted between the supporting part 21 and the one end of the arc striking piece 2 along the opening 201, the reliability of connection between the static contact piece 1 and the arc extinguishing piece 2 can be further improved by adopting the structural design, and the matching installation among the static contact piece 1, the arc extinguishing piece 2 and the contactor shell is facilitated.
The lower end of the second transverse section 12 is provided with a silver contact (not shown in the figure), the silver contact is correspondingly arranged in the gap 20, the silver contact on the second transverse section 12 is used for being in contact with and conducting electricity with the silver contact on the movable contact piece, and when the silver contact is arranged in the gap 20, the silver contact can be cut off in time when electric arcs are generated, so that the whole arc extinguishing effect is improved.
The 12 lower extremes of second horizontal section are provided with the ladder groove 121 with silver contact cooperation counterpoint, and ladder groove 121 has curved lateral wall, carries out assistance-localization real-time when can be used to welding between silver contact and the static contact to make things convenient for production and processing.
The lower extreme of second horizontal section 12 is provided with first lug 122, the upper end of supporting part 21 is provided with the guide slot 211 of pegging graft with first lug 122 cooperation direction, through the sliding fit of first lug 122 and guide slot 211, can be convenient with supporting part 21 direction slip insert storage tank 10 to can also play spacing effect, improve the reliability of being connected between static contact 1 and the arc piece 2.
The first lug 122 of the second transverse section 12 is provided with a screw hole 123 in a penetrating mode, the screw hole 123 is used for penetrating a screw, the stationary contact piece 1 and the contactor shell can be fixed through the screw, and the contactor shell is simple in structure and convenient to install.
The supporting portion 21 is provided with a second protruding block 212, the second protruding block 212 is provided with a screw hole in a penetrating mode, the first transverse section 11 is correspondingly provided with a through hole 111, and one end of a screw penetrates through the through hole 111 and then is connected with the screw hole of the second protruding block 212, so that the static contact piece 1 and the arc striking piece 2 can be reliably connected and fixed together.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a static bridge structure that touches, includes static contact, run-on arc piece, its characterized in that: the static contact piece comprises a first transverse section, a second transverse section and a vertical section, wherein the first transverse section and the second transverse section are longitudinally distributed in parallel, the vertical section is connected between one end of the first transverse section and one end of the second transverse section, the first transverse section is positioned above the second transverse section, an accommodating groove is formed between one end of the first transverse section and one end of the second transverse section at intervals, one end of the arc striking piece comprises a supporting part inserted in the accommodating groove, and the upper end and the lower end of the supporting part are respectively in supporting fit with the first transverse section and the second transverse section.
2. The static bridge structure according to claim 1, wherein: the other end of the arc striking plate comprises an arc extinguishing plate extending longitudinally, and the arc striking plate and the arc extinguishing plate are integrally connected through an arc connecting section.
3. The static bridge structure according to claim 1, wherein: and a notch for cutting the electric arc is arranged at a position, corresponding to the position between one end of the second transverse section and the lower end of the second transverse section, of one end of the arc striking piece.
4. The static bridge structure according to claim 3, wherein: the notch is of a triangular structure, the large end of the notch extends to one end of the second transverse section, an opening is formed in one end of the second transverse section, and the small end of the notch extends towards the other end of the arc striking plate.
5. The static bridge structure according to claim 4, wherein: the supporting part is positioned above one end of the arc ignition sheet, and the other end of the second transverse section is inserted between the supporting part and one end of the arc ignition sheet along the opening.
6. The static bridge structure according to claim 5, wherein: and a silver contact is arranged at the lower end of the second transverse section and correspondingly arranged in the notch.
7. The static bridge structure according to claim 6, wherein: the lower end of the second transverse section is provided with a stepped groove which is aligned with the silver contact in a matching way.
8. The static bridge structure according to claim 1, wherein: the lower extreme of first horizontal section is provided with first lug, the upper end of supporting part is provided with the guide slot of pegging graft with first lug cooperation direction.
9. The static bridge structure according to claim 8, wherein: the first lug is provided with a screw hole in a penetrating manner.
10. The static bridge structure according to claim 1, wherein: the supporting part on be provided with the second lug, run through on the second lug and be provided with the screw, correspond on the first horizontal section and be provided with the through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223216771.3U CN218887080U (en) | 2022-12-01 | 2022-12-01 | Static contact bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223216771.3U CN218887080U (en) | 2022-12-01 | 2022-12-01 | Static contact bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218887080U true CN218887080U (en) | 2023-04-18 |
Family
ID=85945755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223216771.3U Active CN218887080U (en) | 2022-12-01 | 2022-12-01 | Static contact bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218887080U (en) |
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2022
- 2022-12-01 CN CN202223216771.3U patent/CN218887080U/en active Active
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