CN217955687U - Low-voltage fusing type isolating switch with strong conductivity - Google Patents
Low-voltage fusing type isolating switch with strong conductivity Download PDFInfo
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- CN217955687U CN217955687U CN202221820797.6U CN202221820797U CN217955687U CN 217955687 U CN217955687 U CN 217955687U CN 202221820797 U CN202221820797 U CN 202221820797U CN 217955687 U CN217955687 U CN 217955687U
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Abstract
The utility model relates to a strong low pressure fuse-type isolator of electric conductive property, comprising a base plate, fix two insulating columns on the bottom plate, moving contact and static contact, the static contact is fixed on one of them insulating column, the moving contact passes through the moving contact seat and installs on another insulating column, moving contact one end is connected with the moving contact seat through first U type splint, the moving contact other end passes through second U type splint and is connected with the static contact, second U type splint are adorned admittedly on the static contact, second U type splint have two clamping jaws, the moving contact be close to second U type splint one side and be equipped with two current conducting plates, each clamping jaw cliies respectively and corresponds the current conducting plate, the clamping jaw includes splint base and two touch panels, the mounting panel is adorned admittedly on the moving contact seat, the middle section of two touch panels articulates respectively on the extension board that corresponds and is used for pushing down corresponding current conducting plate, be equipped with electrically conductive auxiliary fin group on the splint base, be equipped with the electrically conductive comb of electrically conductive auxiliary fin group adaptation on each touch panel, guarantee reliable contact.
Description
Technical Field
The utility model relates to an isolator technical field especially relates to a low pressure fuse-type isolator that electric conductive property is strong.
Background
The low-voltage fuse type isolating switch with strong conductivity is widely applied to the outgoing line at the low-voltage side of the platform-type transformer due to the advantages of low manufacturing cost, stable operation and convenient maintenance. The common low-voltage fuse-type isolating switch with strong conductivity comprises a base, a static contact, a moving contact and a fuse link, wherein the static contact and the moving contact are arranged on the base; the static contact, the moving contact and the connecting plate are respectively arranged on the insulating column. When the fuse link is fused, the moving contact is detached and replaced by electric power personnel in time, and then the fuse link is installed. Because the disassembly and assembly are generally operated by using a pull rod, the disassembly and assembly structure not only requires tight combination with the moving contact base and the static contact, but also requires the disassembly and assembly structure to facilitate the operation of the pull rod. Moreover, when the switch is closed, the contact area is usually very small, even point contact or line contact is caused, so that the contact resistance is very high, when the switch works for a long time, contact surface overheating is easy to occur to burn out a contact, sufficient contact pressure is needed to solve the problem of high contact resistance, but the sufficient contact pressure is ensured to make switching-on and switching-off become difficult, and the contradiction between reliable connection and light switching-on is difficult to solve.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model provides a low pressure fuse-type isolator that electric conductive property is strong guarantees reliable contact.
The utility model discloses a technical solution be:
the low-voltage fuse-type isolating switch with high electric conductivity comprises a base plate, two insulating columns fixed on the base plate, a moving contact and a static contact, wherein the static contact is fixed on one insulating column, the moving contact is installed on the other insulating column through a moving contact seat, a fuse link is arranged on the moving contact, one end of the moving contact is connected with the moving contact seat through a first U-shaped clamping plate, the other end of the moving contact is connected with the static contact through a second U-shaped clamping plate, the second U-shaped clamping plate is fixedly installed on the static contact, the second U-shaped clamping plate is provided with two clamping jaws, two electric conduction plates are arranged on one side, close to the second U-shaped clamping plate, of the moving contact, the clamping jaws respectively clamp the corresponding electric conduction plates, each clamping jaw comprises a clamping plate base and two contact plates, the clamping plate base is composed of two supporting plates and a U-shaped mounting plate, the mounting plates are fixedly installed on the moving contact seat, the middle sections of the two contact plates are respectively hinged to the corresponding supporting plates and used for pressing the corresponding electric conduction plates, an electric conduction auxiliary fin group is arranged on the clamping plate, and a conductive comb matched with the electric conduction auxiliary fin group is arranged on each contact plate.
Preferably: the auxiliary fin group is composed of a plurality of conductive fins which are arranged in parallel, each conductive fin is provided with a conductive reinforcing plate, and each conductive reinforcing plate is matched with the contact plate in a closing state.
Preferably: the conductive comb is composed of a plurality of auxiliary conductive plates matched with the conductive fins.
Preferably: the middle sections of the touch plates are respectively hinged to the corresponding support plates through shafts, torsion springs are mounted on the shafts and respectively press the touch plates and the support plates, the touch plates are opened towards the two sides of the U-shaped opening direction of the clamp plate base under the action of the torsion springs, and the sides, away from the mounting plate, of the touch plates are respectively bent towards the two sides of the U-shaped opening direction.
Preferably: the mounting plate is fixed on the movable contact seat by adopting a screw or welding mode.
Preferably, the following components: the two support plates are elastic plates.
Preferably, the isolating switch is further provided with an arc extinguishing piece, and the arc extinguishing piece consists of a movable arc extinguishing piece arranged on the movable contact and a static arc extinguishing piece arranged on the static contact.
Preferably, a rotating shaft is further arranged at one end of the moving contact connected with the moving contact seat, and the rotating shaft is hung on a hanging seat on the moving contact seat.
The beneficial effects of the utility model are that:
the static contact is fixed on one of the insulating columns, the moving contact is installed on the other insulating column through a moving contact seat, the moving contact is provided with a fuse link, the moving contact rotates around the moving contact seat to further enable the moving contact and the static contact to be switched on and off, one end of the moving contact is connected with the moving contact seat through a first U-shaped clamping plate to achieve electrical connection between the moving contact and the moving contact seat, the other end of the moving contact is connected with the static contact through a second U-shaped clamping plate, the moving contact is electrically connected with the static contact through the second U-shaped clamping plate, the second U-shaped clamping plate is fixedly installed on the static contact, the second U-shaped clamping plate is provided with two clamping jaws, one side of the moving contact, close to the second U-shaped clamping plate, is provided with two current conducting plates, and each clamping jaw respectively clamps a corresponding current conducting plate;
the clamping jaw comprises a clamping plate base and two contact plates, the clamping plate base is composed of two support plates and a mounting plate and is U-shaped, the mounting plate is fixedly mounted on a movable contact seat, the middle sections of the two contact plates are respectively hinged to the corresponding support plates and used for pressing corresponding conductive plates, conductive auxiliary fin groups are arranged on the clamping plate base, a conductive comb matched with the conductive auxiliary fin groups is arranged on each contact plate, the contact plates are hinged to the support plates and can extrude the conductive plates, the contact area between the contact plates and the conductive plates is increased, the conductive performance is guaranteed, and the contact area between the contact plates and the clamping jaws is further increased due to the matching of the conductive combs and the conductive auxiliary fins, so that the conductive performance is guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a schematic structural view of a second U-shaped splint.
Fig. 4 is a schematic view of a jaw structure.
Fig. 5 is a schematic view of the clamping jaws clamping the conductive plate.
Fig. 6 is a schematic diagram of a touch panel structure.
Description of reference numerals:
1. a base plate;
2. an insulating column;
3. a moving contact; 31. a conductive plate;
4. static contact;
5. a fuse link;
6. a first U-shaped clamp plate;
7. a movable contact seat; 71. hanging a seat;
8. a second U-shaped splint; 81. a clamping jaw; 811. a clamp plate base; 8111. a support plate; 8112. mounting a plate; 8113. a conductive auxiliary fin set; 8114. a conductive reinforcing plate; 812. a touch panel; 8121. a conductive comb; 81211. an auxiliary conductive plate; 813. a torsion spring.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-6, this embodiment provides a low-voltage fuse-type disconnecting switch with strong electrical conductivity, including a bottom plate 1, two insulating columns 2 fixed on the bottom plate 1, a moving contact 3 and a static contact 4, the static contact 4 is fixed on one of the insulating columns 2, the moving contact 3 is installed on the other insulating column 2 through a moving contact base 7, the moving contact 3 is provided with a fuse link 5, the moving contact 3 rotates around the moving contact base 7 to further enable the moving contact 3 to be switched on and off with the static contact 4, one end of the moving contact 3 is connected with the moving contact base 7 through a first U-shaped clamp plate 6 to enable electrical connection between the moving contact 3 and the moving contact base 7, the other end of the moving contact 3 is connected with the static contact 4 through a second U-shaped clamp plate 8, the moving contact 3 is electrically connected with the static contact 4 through the second U-shaped clamp plate 8, the second U-shaped clamp plate 8 is fixed on the static contact 4, the second U-shaped clamp plate 8 has two clamping jaws 81, one side of the moving contact 3 close to the second U-shaped clamp plate 8 is provided with two conductive plates 31, and each clamping jaw 81 respectively clamps a corresponding conductive plate 31.
The clamping jaws 81 comprise a clamping plate base 811 and two contact plates 812, the clamping plate base 811 is composed of two support plates 8111 and a mounting plate 8112 and is U-shaped, the mounting plate 8112 is fixed on the movable contact seat 7 in a screw or welding mode, the middle sections of the two contact plates 812 are respectively hinged on the corresponding support plates 8111 to press the corresponding conductive plates 31, the clamping plate base 811 is provided with conductive auxiliary fin groups 8113, each contact plate 812 is provided with a conductive comb 8121 matched with the conductive auxiliary fin groups 8113, the contact plates 812 are hinged on the support plates 8111 and can adaptively press the conductive plates 31, the contact area between the contact plates 812 and the conductive plates 31 is increased, the conductivity is ensured, and the contact area between the contact plates 812 and the clamping jaws 81 is further increased due to the matching of the conductive comb 8121 and the conductive auxiliary fins, so that the conductivity is ensured.
The auxiliary fin group is composed of a plurality of conductive fins arranged in parallel, each conductive fin is provided with a conductive reinforcing plate 8114, each conductive reinforcing plate 8114 is matched with a contact plate 812 in a closing state, each conductive comb 8121 is composed of a plurality of auxiliary conductive plates 81211 matched with each conductive fin, the contact plates 812 rotate during closing, the two conductive plates 31 of the movable contact 3 extrude the contact plates 812 during closing, the contact plates 812 rotate to be attached to the conductive plates 31, and the position of the contact plates 812 during closing enables each conductive reinforcing plate 8114 to be attached to the corresponding auxiliary conductive plate 81211, so that the conductivity is further enhanced.
The middle sections of the two touch panels 812 are respectively hinged to the corresponding support plates 8111 through shafts, torsion springs 813 are mounted on the shafts, the torsion springs 813 press the touch panels 812 and the support plates 8111 respectively, the two touch panels 812 are opened towards the two sides of the U-shaped opening direction of the clamp plate base 811 under the action of the torsion springs 813, one sides of the two touch panels 812, far away from the mounting plate 8112, are bent towards the two sides of the U-shaped opening direction respectively, the current conducting plate 31 enters the clamp plate base 811 when the switch is switched on conveniently, the two support plates 8111 are elastic plates, the two touch panels 812 and the corresponding current conducting plate 31 are in switch-on, and the current conducting plate 31 can be adaptively attached to each touch panel 812.
The isolating switch is also provided with an arc extinguishing piece, the arc extinguishing piece consists of a movable arc extinguishing piece arranged on the movable contact 3 and a static arc extinguishing piece arranged on the static contact 4, and the arc extinguishing piece can keep contact when the movable contact 3 is just separated from the static contact 4, so that current can continuously circulate along the arc extinguishing piece; meanwhile, because the contact surface of the arc extinguishing piece is smaller than that of the movable contact terminal 4 and the static contact terminal 4, the contact resistance of the arc extinguishing piece is larger, the time of passing current is reduced, the generation of electric arcs is effectively reduced, and the effect of protecting the movable contact terminal 4 and the static contact terminal 4 is achieved.
The moving contact 3 is still provided with the pivot with the one end that the moving contact seat 7 is connected, and the pivot articulates the seat 71 that hangs on the moving contact seat 7, when dismantling the moving contact 3 after fuse-link 5 fuses, can directly take off the moving contact 3 from hanging the seat 71, and is very convenient.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. The low-voltage fuse type isolating switch with high conductivity is characterized by comprising a base plate, two insulating columns, a moving contact and a static contact, wherein the two insulating columns, the moving contact and the static contact are fixed on the base plate, the static contact is fixed on one insulating column, the moving contact is installed on the other insulating column through a moving contact seat, a fuse link is arranged on the moving contact, one end of the moving contact is connected with the moving contact seat through a first U-shaped clamping plate, the other end of the moving contact is connected with the static contact through a second U-shaped clamping plate, the second U-shaped clamping plate is fixedly installed on the static contact, the second U-shaped clamping plate is provided with two clamping jaws, one side, close to the second U-shaped clamping plate, of the moving contact is provided with two conductive plates, each clamping jaw respectively clamps a corresponding conductive plate, each clamping jaw comprises a clamping plate base and two contact plates, each clamping plate base is composed of two supporting plates and a U-shaped, the mounting plates are fixedly installed on the moving contact seat, the middle sections of the two contact plates are respectively hinged to the corresponding supporting plates and used for pressing the corresponding conductive plates, each clamping plate is provided with a conductive auxiliary fin group, and each contact plate is provided with a conductive comb matched with the conductive auxiliary fin group.
2. The high conductivity low voltage fusible disconnect of claim 1, wherein: the auxiliary fin group is composed of a plurality of conductive fins which are arranged in parallel, each conductive fin is provided with a conductive reinforcing plate, and each conductive reinforcing plate is matched with the contact plate in a closing state.
3. The high conductivity low voltage fusible disconnect switch of claim 2, characterized in that: the conductive comb is composed of a plurality of auxiliary conductive plates matched with the conductive fins.
4. The high conductivity low voltage fusible disconnect switch of claim 1, characterized in that: the middle sections of the touch plates are respectively hinged to the corresponding support plates through shafts, torsion springs are mounted on the shafts and respectively press the touch plates and the support plates, the touch plates are opened towards the two sides of the U-shaped opening direction of the clamp plate base under the action of the torsion springs, and the sides, away from the mounting plate, of the touch plates are respectively bent towards the two sides of the U-shaped opening direction.
5. The high conductivity low voltage fusible disconnect of claim 1, wherein: the mounting plate is fixed on the movable contact seat by adopting a screw or welding mode.
6. The high conductivity low voltage fusible disconnect of claim 1, wherein: the two support plates are elastic plates.
7. The electrically conductive low-voltage fuse-link disconnector according to claim 1, further comprising an arc extinguishing piece, wherein the arc extinguishing piece comprises a moving arc extinguishing piece disposed on the moving contact and a static arc extinguishing piece disposed on the static contact.
8. The electrically conductive low-voltage fuse-type disconnector according to claim 1, wherein a rotating shaft is further disposed at an end of the moving contact connected to the moving contact base, and the rotating shaft is connected to a hanging base on the moving contact base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221820797.6U CN217955687U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with strong conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221820797.6U CN217955687U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with strong conductivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217955687U true CN217955687U (en) | 2022-12-02 |
Family
ID=84223373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221820797.6U Active CN217955687U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with strong conductivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217955687U (en) |
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2022
- 2022-07-15 CN CN202221820797.6U patent/CN217955687U/en active Active
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