CN211183105U - Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet - Google Patents
Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet Download PDFInfo
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- CN211183105U CN211183105U CN201922162894.5U CN201922162894U CN211183105U CN 211183105 U CN211183105 U CN 211183105U CN 201922162894 U CN201922162894 U CN 201922162894U CN 211183105 U CN211183105 U CN 211183105U
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Abstract
The utility model discloses a gas insulation vacuum switch mechanism and a gas insulation switch cabinet, the mechanism comprises an insulation support, a gap groove is arranged on the insulation support, the insulation support is connected with a fixed plate and a guide plate through a fastener, and a pressure equalizing cap is arranged on the fastener; the vacuum arc extinguish chamber is provided with a static contact and a moving contact, the static contact is arranged on the fixed plate, and the moving contact movably penetrates through the guide plate; the over-travel transmission assembly is arranged above the vacuum arc extinguish chamber and is connected with the moving contact; the metal mounting cover is wrapped on the outer side of the over-travel transmission assembly; the insulating transmission rotating shaft penetrates through the over-travel transmission assembly and the metal mounting cover; and the cold-shrinkage insulating sleeves are arranged on the insulating transmission rotating shaft and are positioned on two sides of the over-travel transmission assembly. The creepage distance can be increased by the gap groove and the cold-shrinkage insulating sleeve; the voltage-sharing cap can avoid the point discharge of the fastener, and the metal mounting cover can eliminate the discharge phenomenon of the over-travel transmission assembly and improve the insulativity between different phases and between the phases and the ground.
Description
Technical Field
The utility model relates to a distribution equipment technical field, in particular to gas insulation vacuum switch mechanism and gas insulation cubical switchboard.
Background
China power supply and distribution products are developed by four large structures of oil insulation, air insulation, gas insulation and solid insulation, and the performance of the products is continuously improved. Currently, SF is the most used product6The gas insulation product and the solid insulation product are two series, and both products have small volume and better insulation and arc extinguishing performance.
However, the sulfur hexafluoride (SF) is contained in the two series products6) And solid epoxy resin and other non-environment-friendly wastes, and does not meet the development direction of green and environment protection of the society.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a gas insulation vacuum switch mechanism has good insulating properties, can use under the condition of air insulation medium.
The utility model also provides a gas insulation cubical switchboard of having above-mentioned gas insulation vacuum switch mechanism.
According to the utility model discloses a gas insulation vacuum switch mechanism of first aspect embodiment, including the insulating support, have the breach groove, the insulating support is connected with fixed plate and deflector through the fastener, be provided with the uniform pressure cap on the fastener; the vacuum arc extinguish chamber is provided with a fixed contact and a movable contact, the fixed contact is arranged on the fixed plate, and the movable contact movably penetrates through the guide plate; the over travel transmission assembly is arranged above the vacuum arc extinguish chamber and is connected with the moving contact; the metal mounting cover is wrapped on the outer side of the over-travel transmission assembly; the insulating transmission rotating shaft penetrates through the over travel transmission assembly and the metal mounting cover and is connected with the metal mounting cover through a bearing; and the cold-shrinkage insulating sleeves are arranged on the insulating transmission rotating shaft and are positioned on two sides of the over-travel transmission assembly.
According to the utility model discloses gas insulation vacuum switch mechanism has following beneficial effect at least:
the gap groove on the insulating support and the cold-shrinkage insulating sleeve on the insulating transmission rotating shaft can increase the creepage distance between different phases and the creepage distance between the phases and the ground, and are favorable for improving the insulating property of the insulating support; the uniform pressure cap is arranged on the fastener, so that the point discharge of the fastener can be avoided, the metal mounting cover is arranged on the outer side of the over-travel transmission assembly, and the current of the over-travel transmission assembly can be guided to the mounting cover, so that the discharge phenomenon of the over-travel transmission assembly is eliminated, and the insulativity between different phases and between the phases and the ground is improved.
According to some embodiments of the present invention, the metal mounting cover comprises a first mounting cover and a second mounting cover, the first mounting cover and the second mounting cover are respectively provided with a first L type step and a second L type step adapted to each other at their edges, and pass through the first L type step and the second L type step are mutually buckled.
According to some embodiments of the invention, the outer surface of the metal mounting cover is a curved surface.
According to the utility model discloses a some embodiments, first installation cover with be provided with first spliced pole and second spliced pole on the second installation cover respectively, first spliced pole with all set up the screw hole that is used for mounting screw or bolt on the second spliced pole, first spliced pole with the second spliced pole passes through screw or bolted connection.
According to the utility model discloses a some embodiments, first installation cover with junction between the second installation cover is provided with first heat dissipation breach and second heat dissipation breach, first heat dissipation breach with the louvre is constituteed to the second heat dissipation breach.
According to the utility model discloses a some embodiments, the disk body that the insulating cover of shrinkage was made for adopting insulating material, the centre of a circle of the insulating cover of shrinkage is provided with the mounting hole.
According to some embodiments of the invention, the fixed plate and the edge on the deflector all are provided with a chamfer.
According to some embodiments of the utility model, the deflector includes circular, oval or oblong's main part, the side of main part is provided with the annular groove, metal installation cover includes interconnect's first installation cover and second installation cover, first installation cover with the bottom of second installation cover all be provided with the flange of annular groove adaptation, the flange is installed in the annular groove.
According to some embodiments of the utility model, the over travel transmission subassembly is established including closing separating brake cam, guide arm and cover elastic component on the guide arm, the first end activity of guide arm is worn to locate vacuum interrupter's moving contact, vacuum interrupter's moving contact is provided with first locating part, the second end of guide arm is provided with the second locating part, the both ends of elastic component respectively with first locating part with second locating part butt, the second end of guide arm is connected with the connecting piece, close and be provided with the guide hole on the separating brake cam, the connecting piece activity is inserted and is located the guide hole.
According to the utility model discloses a gas insulated switchgear of second aspect embodiment, include according to the utility model discloses the first aspect gas insulated vacuum switchgear.
According to the utility model discloses gas-insulated cubical switchboard has following beneficial effect at least:
the utility model discloses gas insulation vacuum switch mechanism has good insulating nature, can use under the condition of ordinary pressure air, dry air or nitrogen gas as insulating medium, reaches the environmental protection and changes the requirement.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is one of the schematic structural diagrams of a gas insulated vacuum switchgear according to an embodiment of the present invention;
fig. 2 is one of the schematic structural views of the gas-insulated vacuum switching mechanism shown in fig. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 circled at position A;
FIG. 4 is an enlarged view of a portion of FIG. 2, circled at position B;
FIG. 5 is a schematic structural diagram of an opening state of an over travel transmission assembly of the gas insulated vacuum switchgear shown in FIG. 2;
fig. 6 is a schematic structural diagram of a closing state of an over travel transmission assembly of the gas insulated vacuum switchgear shown in fig. 2.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, the present embodiment discloses a gas-insulated vacuum switching mechanism, which includes an insulating and supporting vacuum interrupter 200, an over travel transmission assembly 300, a metal mounting cover 400, an insulating transmission shaft 500, and a cold-shrink insulating sleeve 600, wherein the insulating supporting 100 has a notch groove 110, the notch groove 110 may be a square groove or a U-shaped groove, the insulating supporting 100 is connected to a fixing plate 120 and a guide plate 130 through a fastener, the fastener may be a screw or a bolt, and the fastener is provided with a pressure equalizing cap 140; the vacuum arc-extinguishing chamber 200 is provided with a fixed contact 210 and a movable contact 220, the fixed contact 210 is installed on the fixed plate 120, and the movable contact 220 movably penetrates through the guide plate 130; the over travel transmission assembly 300 is arranged above the vacuum arc extinguish chamber 200 and is connected with the moving contact 220; the metal mounting cover 400 is wrapped on the outer side of the over travel transmission assembly 300; the insulation transmission rotating shaft 500 penetrates through the over travel transmission assembly 300 and the metal mounting cover 400, and the insulation transmission rotating shaft 500 is connected with the metal mounting cover 400 through a bearing 510; the cold-shrink insulating sleeve 600 is disposed on the insulating transmission rotating shaft 500 and located at both sides of the over travel transmission assembly 300.
The gap groove 110 on the insulating support 100 and the cold-shrink insulating sleeve 600 on the insulating transmission rotating shaft 500 can increase the creepage distance between different phases and the creepage distance between the phases and the ground, which is beneficial to improving the insulating property of the insulating support 100; the uniform pressure cap 140 is arranged on the fastener, so that the point discharge of the fastener can be avoided, the metal mounting cover 400 is arranged on the outer side of the over travel transmission assembly 300, and the current of the over travel transmission assembly 300 can be guided to the mounting cover, so that the discharge phenomenon of the over travel transmission assembly 300 is eliminated, and the insulation between different phases and between the phases and the ground is improved.
Referring to fig. 3, for convenience of installation, the metal mounting cover 400 includes a first mounting cover 410 and a second mounting cover, the edges of the first mounting cover 410 and the second mounting cover are respectively provided with a first L-shaped step 411 and a second L-shaped step which are matched with each other, and are buckled with each other through the first L-shaped step 411 and the second L-shaped step, and the first L-shaped step 411 and the second L-shaped step are aligned when buckled and are favorable for tight buckling, so that the first mounting cover 410 and the second mounting cover ensure the electric field shielding effect.
In order to improve the electric field shielding effect, the outer surface of the metal mounting cover 400 is a curved surface, so that the discharge of the metal mounting cover 400 due to the existence of a sharp point on the surface can be avoided.
The over-travel transmission assembly 300 generates a certain amount of heat when in use, a first heat dissipation notch 414 and a second heat dissipation notch are arranged at the joint between the first mounting cover 410 and the second mounting cover, and the first heat dissipation notch 414 and the second heat dissipation notch form heat dissipation holes, which is beneficial to heat dissipation of the over-travel transmission assembly 300.
Referring to fig. 1 and 2, the cold-shrink insulating sleeve 600 is a disk made of an insulating material, so that the distances between each point of the edge of the cold-shrink insulating sleeve 600 and the center are equal, the discharge phenomenon at the tip of the outgoing line is avoided, and a mounting hole is formed in the center of the cold-shrink insulating sleeve 600.
In order to reduce the point discharge phenomenon, the edges of the fixed plate 120 and the guide plate 130 are provided with chamfers, so that the structures of the fixed plate 120 and the guide plate 130 are more smooth, and the points are reduced.
Referring to fig. 4, the guide plate 130 includes a circular, elliptical or oblong main body, a circular groove 131 is disposed on a side surface of the main body, the metal mounting cover 400 includes a first mounting cover 410 and a second mounting cover (not shown) connected to each other, flanges 415 adapted to the circular groove 131 are disposed at bottoms of the first mounting cover 410 and the second mounting cover, and the flanges 415 are mounted in the circular groove 131, so that the metal mounting cover 400 and the guide plate 130 are stably connected, and the metal mounting cover 400 and the guide plate 130 can form a complete electric field shielding structure, thereby improving the electric field shielding effect and reducing the point discharge phenomenon of the over travel transmission assembly 300. The round, oval or oblong main body can make the electric field uniformly distributed and avoid point discharge.
Referring to fig. 5 and 6, the over travel transmission assembly 300 includes an opening/closing cam 310, a guide rod (not shown), and an elastic member 330 sleeved on the guide rod, the guide plate 130 is provided with a guide hole, a first end of the guide rod movably penetrates through the movable contact 220 of the vacuum interrupter 200, the movable contact 220 of the vacuum interrupter 200 is provided with a first limiting member 340, a second end of the guide rod is provided with a second limiting member 350, two ends of the elastic member 330 are respectively abutted against the first limiting member 340 and the second limiting member 350, the first limiting member 340 and the second limiting member 350 are bolts, limiting rods, or limiting blocks, a second end of the guide rod is connected with a connecting member 320, the connecting member 320 is a connecting pin or a connecting rod, the opening/closing cam 310 is provided with a guide hole 311, and the connecting member 320 is movably. The middle part of the guide plate 130 is provided with a through hole, the moving contact 220 of the vacuum arc-extinguishing chamber 200 movably penetrates through the through hole, when the switch is switched on, the insulation transmission rotating shaft 500 rotates anticlockwise and drives the switch-on/switch-off cam 310, so that the connecting piece 320 moves downwards and pushes the guide rod, the second limiting piece 350 moves downwards along with the guide rod and compresses the elastic piece 330, the force of the elastic piece 330 acts on the first limiting piece 340, and therefore the moving contact 220 of the vacuum arc-extinguishing chamber 200 is pushed to move downwards, wherein the guide plate 130 plays a guiding role in the moving process of the moving contact 220 of the vacuum arc-extinguishing. After the vacuum arc-extinguishing chamber 200 is switched on in place, the switching-on/off cam 310 keeps the final position of the central line, and under the condition of no external force, the vacuum arc-extinguishing chamber 200 always keeps the switching-on position, and the movable contact 220 of the vacuum arc-extinguishing chamber 200 is in a closed state under the elastic force action of the elastic element 330. During opening, the insulating transmission rotating shaft 500 rotates clockwise and drives the opening and closing cam 310 to enable the connecting piece 320 to move upwards and pull the guide rod, the second limiting piece 350 moves upwards along with the guide rod, the elastic piece 330 releases energy, the moving contact 220 of the vacuum arc-extinguishing chamber 200 moves upwards, after the vacuum arc-extinguishing chamber 200 is opened in place, the opening and closing cam 310 keeps the final position of the central line, and under the condition of no external force, the vacuum arc-extinguishing chamber 200 always keeps the opening position.
According to the utility model discloses a second aspect embodiment still discloses a gas insulated switchgear, including the gas insulated vacuum switchgear of above-mentioned embodiment.
The utility model discloses gas insulation vacuum switch mechanism has good insulating nature, can be at ordinary pressure air, dry air or nitrogen gas as the absoluteUse under the condition of reason medium, vacuum interrupter 200 need not to use epoxy to seal admittedly, eliminates because of the epoxy seals the partial discharge hidden danger that causes admittedly and improves the radiating efficiency, the utility model discloses the gas insulated switchgear of embodiment does not have SF6And epoxy resin and other wastes, and meets the requirement of environmental protection.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A gas insulated vacuum switching mechanism, comprising:
the insulation support (100) is provided with a notch groove (110), the insulation support (100) is connected with a fixing plate (120) and a guide plate (130) through a fastener, and the fastener is provided with a pressure equalizing cap (140);
the vacuum arc-extinguishing chamber (200) is provided with a static contact (210) and a moving contact (220), the static contact (210) is installed on the fixing plate (120), and the moving contact (220) is movably arranged on the guide plate (130) in a penetrating mode;
the over travel transmission assembly (300) is arranged above the vacuum arc-extinguishing chamber (200) and is connected with the moving contact (220);
the metal mounting cover (400) is wrapped on the outer side of the over-travel transmission assembly (300);
the insulation transmission rotating shaft (500) penetrates through the overtravel transmission assembly (300) and the metal mounting cover (400), and the insulation transmission rotating shaft (500) is connected with the metal mounting cover (400) through a bearing (510);
and the cold-shrink insulating sleeve (600) is arranged on the insulating transmission rotating shaft (500) and positioned on two sides of the over-travel transmission assembly (300).
2. The gas insulated vacuum switchgear according to claim 1, wherein the metal mounting cover (400) comprises a first mounting cover (410) and a second mounting cover, edges of the first mounting cover (410) and the second mounting cover are respectively provided with a first L-type step (411) and a second L-type step which are fitted to each other, and are engaged with each other by the first L-type step (411) and the second L-type step.
3. The gas insulated vacuum switchgear according to claim 1 or 2, characterized in that the outer surface of the metal mounting cover (400) is curved.
4. The gas insulated vacuum switchgear according to claim 2, characterized in that the first mounting cup (410) and the second mounting cup are provided with a first connection post (412) and a second connection post, respectively, the first connection post (412) and the second connection post are provided with a threaded hole (413) for mounting a screw or a bolt, the first connection post (412) and the second connection post are connected by the screw or the bolt.
5. The gas insulated vacuum switchgear according to claim 2, wherein a first heat dissipation notch (414) and a second heat dissipation notch are provided at a connection between the first mounting cover (410) and the second mounting cover, and the first heat dissipation notch (414) and the second heat dissipation notch constitute a heat dissipation hole.
6. The gas-insulated vacuum switching mechanism according to claim 1, wherein the cold-shrink insulating sleeve (600) is a circular disk body made of an insulating material, and a mounting hole is provided at a center of the cold-shrink insulating sleeve (600).
7. Gas insulated vacuum switchgear according to claim 1, characterized in that the edges on the fixed plate (120) and the guide plate (130) are each provided with a chamfer.
8. The gas insulated vacuum switchgear according to claim 1, characterized in that the guiding plate (130) comprises a circular, oval or oblong body, the side of which is provided with an annular groove (131), the metal mounting cup (400) comprises a first mounting cup (410) and a second mounting cup connected to each other, the bottom of each of the first mounting cup (410) and the second mounting cup is provided with a flange (415) fitting into the annular groove (131), the flange (415) being mounted in the annular groove (131).
9. The gas-insulated vacuum switching mechanism according to claim 1, wherein the over-travel transmission assembly (300) includes an opening/closing cam (310), a guide rod and an elastic member (330) sleeved on the guide rod, a first end of the guide rod movably penetrates through the movable contact (220) of the vacuum interrupter (200), the movable contact (220) of the vacuum interrupter (200) is provided with a first limiting member (340), a second end of the guide rod is provided with a second limiting member (350), two ends of the elastic member (330) respectively abut against the first limiting member (340) and the second limiting member (350), the second end of the guide rod is connected with a connecting member (320), the opening/closing cam (310) is provided with a guide hole (311), and the connecting member (320) is movably inserted into the guide hole (311).
10. A gas-insulated switchgear cabinet, characterized in that it comprises a gas-insulated vacuum switchgear according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162894.5U CN211183105U (en) | 2019-12-05 | 2019-12-05 | Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922162894.5U CN211183105U (en) | 2019-12-05 | 2019-12-05 | Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211183105U true CN211183105U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922162894.5U Active CN211183105U (en) | 2019-12-05 | 2019-12-05 | Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211183105U (en) |
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- 2019-12-05 CN CN201922162894.5U patent/CN211183105U/en active Active
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