CN211828619U - Miniaturized high-voltage vacuum circuit breaker with three-phase linkage type permanent magnet operating mechanism - Google Patents
Miniaturized high-voltage vacuum circuit breaker with three-phase linkage type permanent magnet operating mechanism Download PDFInfo
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- CN211828619U CN211828619U CN202020494278.XU CN202020494278U CN211828619U CN 211828619 U CN211828619 U CN 211828619U CN 202020494278 U CN202020494278 U CN 202020494278U CN 211828619 U CN211828619 U CN 211828619U
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- vacuum circuit
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- permanent magnet
- voltage vacuum
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Abstract
The utility model provides a miniaturized high-pressure vacuum circuit breaker with three-phase coordinated type permanent magnetism operating device, at the inside coordinated type drive mechanism that is equipped with of operation box, the insulating pull rod of three solid utmost point post lower extreme stretches into in the operation box and is connected with coordinated type drive mechanism, inside permanent magnetic mechanism and the manual separating brake mechanism of being equipped with of operation box, and the lower extreme is located between permanent magnetic mechanism and the manual separating brake mechanism among the coordinated type drive mechanism to realize the synchronous break-make of high-pressure vacuum circuit breaker three-phase through the action of permanent magnetic mechanism drive coordinated type drive mechanism, or realize the synchronous break-off of high-pressure vacuum circuit breaker three-phase through manual separating brake mechanism drive coordinated type drive mechanism. The utility model discloses guaranteed the synchronism of three items of circuit breakers, transmission stable in structure is reliable, and the more succinct easy assembly of original structure of installation cooperation structure, the maintenance is changed conveniently, has reduced the manufacturing cost of circuit breaker, has improved the reliability of circuit breaker, has saved installation space and area.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker, concretely relates to miniaturized high-pressure vacuum circuit breaker with three-phase coordinated type permanent magnetism operating device.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The high-voltage vacuum circuit breaker who uses at present, because three inside break-make structural design are unreasonable, three break-make synchronizations are poor, lead to the switch reliability poor, and the break-make structure is complicated, make high-voltage vacuum circuit breaker the installation cooperation in-process degree of difficulty big, it is inconvenient to change for subsequent maintenance, the inside mechanical interlocking structure of high-voltage vacuum circuit breaker is complicated, installation space is big, area occupied is big, current vacuum circuit breaker only is fit for vertical installation, unsuitable side direction installation, therefore, to above-mentioned problem, it is necessary to improve.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem: the utility model provides a miniaturized high-pressure vacuum circuit breaker with three-phase coordinated type permanent magnet operating device, through set up the coordinated type drive mechanism who is used for driving the insulating pull rod synchronization action of three solid utmost point post lower extreme in the operation box, and realize the synchronous break-make of high-pressure vacuum circuit breaker three-phase under the drive of permanent magnet mechanism, or accomplish the synchronous break-make of high-pressure vacuum circuit breaker three-phase under the drive of manual separating brake mechanism, the synchronism of three items of circuit breaker has been guaranteed, the transmission structure is stable and reliable, the installation cooperation structure is more succinct easy the assembly than original structure, it is convenient to maintain and change, the manufacturing cost of circuit breaker is reduced, the reliability of circuit breaker is improved, installation space and area have been saved.
The utility model adopts the technical proposal that: miniaturized high-voltage vacuum circuit breaker with three-phase coordinated type permanent magnet operating device, including the operation box with locate the three utmost point post that seals admittedly of operation box upper end, the inside coordinated type drive mechanism that is equipped with of operation box, the insulating pull rod of three utmost point post lower extreme that seals admits to stretch into in the operation box and be connected with coordinated type drive mechanism, inside permanent magnet mechanism and the manual separating brake mechanism of being equipped with of operation box, and the lower extreme is located between permanent magnet mechanism and the manual separating brake mechanism among the coordinated type drive mechanism to realize the synchronous break-make of high-voltage vacuum circuit breaker three-phase through the action of permanent magnet mechanism drive coordinated type drive mechanism, or realize the synchronous break-off of high-voltage vacuum circuit breaker three-phase through manual separating brake mechanism drive.
Wherein, the linkage type transmission mechanism comprises a linkage long plate, two V-shaped transmission connecting levers, a middle driving connecting lever and a tripping spring, a cross beam is fixed in the operation box body, the corners of the two V-shaped transmission connecting levers and the middle part of the middle driving connecting lever between the two V-shaped transmission connecting levers are rotatably arranged on the cross beam, one ends of the middle driving connecting lever and the two V-shaped transmission connecting levers are respectively and rotatably connected with the lower end of an insulating pull rod at the corresponding position, the other ends of the middle driving connecting lever and the two V-shaped transmission connecting levers are rotatably connected with the linkage long plate above the cross beam, the end part of the linkage long plate is connected with one end of a tripping spring, the other end of the tripping spring is hung with a fixed pin arranged on the side wall of the operation box body, the lower end of the middle driving connecting lever is arranged between a permanent magnetic mechanism and a manual tripping mechanism, and the middle driving connecting lever lower end is driven by the linkage type transmission mechanism to move leftwards or move rightwards to realize, or the lower end of the middle driving crank arm is driven to move left by the manual brake separating mechanism to realize the three-phase synchronous disconnection of the high-voltage vacuum circuit breaker.
Further, the manual switching-off mechanism comprises a cam, a rotating shaft and a torsion spring, the rotating shaft is rotatably installed on a supporting frame on the inner bottom surface of the operation box body and extends out of the operation box body, the cam is fixed on the rotating shaft, one end of the torsion spring sleeved on the rotating shaft is positioned through a positioning pin in the operation box body, the other end of the torsion spring is positioned on a handle at the lower end of the cam, the permanent magnet mechanism is fixed on the inner bottom surface of the operation box body, a mandril is fixed on an output shaft of the permanent magnet mechanism, the lower end of a middle driving crank arm in the linkage type transmission mechanism is positioned between the mandril and the cam, the output shaft of the energized permanent magnet mechanism drives the mandril to push the lower end of the middle driving crank arm to move right or left so that the lower ends of the middle driving crank arms move up or down synchronously so that the insulating pull rods at the lower ends of the three solid-sealed poles move And synchronously opening three phases of the vacuum circuit breaker.
Furthermore, a brake separating buffer is arranged on the inner bottom surface of the operation box body and is positioned at the lower end of one of the insulating pull rods.
Furthermore, the vacuum arc-extinguishing chamber and the upper and lower outlet terminals in the solid-sealed polar pole are all cast and sealed into a whole by adopting APG epoxy resin.
The utility model has the advantages compared with the prior art:
1. according to the technical scheme, the linkage type transmission mechanism for driving the insulating pull rods at the lower ends of the three solid-sealed polar columns to synchronously act is arranged in the operating box body, three-phase synchronous on-off of the high-voltage vacuum circuit breaker is realized under the driving of the permanent magnetic mechanism, or three-phase synchronous off of the high-voltage vacuum circuit breaker is completed under the driving of the manual brake separating mechanism, so that the synchronism of the three items of the circuit breaker is ensured;
2. according to the technical scheme, the structure that two V-shaped transmission connecting levers and a middle driving connecting lever which are rotatably installed on a cross beam are connected with a linkage long plate is adopted, synchronous actions of three insulation pull rods connected with the two V-shaped transmission connecting levers and the middle driving connecting lever can be guaranteed on the premise that the lower end of the middle driving connecting lever moves left and right, a three-phase integrated opening and closing structure is formed, necessary conditions are provided for three-phase synchronous disconnection of a high-voltage vacuum circuit breaker, the transmission structure is stable and reliable, and the installation matching structure is simpler than the original structure and is easy to assemble;
3. according to the technical scheme, the vacuum arc-extinguishing chamber and the upper and lower wire outlet ends in the solid-sealed polar pole are all cast and sealed into a whole by APG epoxy resin, so that the defects that the vacuum arc-extinguishing chamber is possibly damaged in the assembling process and the bolt connection part is loosened due to vibration are reduced, and the structure of the high-voltage vacuum circuit breaker is optimized;
4. the technical scheme has the advantages that the maintenance and the replacement are convenient, the manufacturing cost of the circuit breaker is reduced, the reliability of the circuit breaker is improved, the installation space and the occupied area are saved, the miniaturized vacuum circuit breaker can be vertically installed and also can be horizontally installed, and the miniaturized vacuum circuit breaker can be used in a fixed switch cabinet with a small size.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
An embodiment of the present invention will be described in conjunction with fig. 1, so that the technical solution will be described clearly and completely, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Take a high-voltage vacuum circuit breaker of 10KV as an example: the miniature high-voltage vacuum circuit breaker with the three-phase linkage type permanent magnet operating mechanism comprises an operating box body 1 and three fixedly-sealed polar posts 2 arranged at the upper end of the operating box body 1, wherein a linkage type transmission mechanism is arranged in the operating box body 1, insulating pull rods 3 at the lower ends of the three fixedly-sealed polar posts 2 extend into the operating box body 1 and are connected with the linkage type transmission mechanism, a permanent magnet mechanism 10 and a manual opening mechanism are arranged in the operating box body 1, the lower ends of the linkage type transmission mechanism are positioned between the permanent magnet mechanism 10 and the manual opening mechanism 11, the linkage type transmission mechanism is driven by the permanent magnet mechanism 10 to act to realize three-phase synchronous on-off of the high-voltage vacuum circuit breaker, or the linkage type transmission mechanism is driven by the manual opening mechanism 11 to realize three-phase synchronous off; the circuit breaker of this kind of structure has reduced 50% than the circuit breaker volume on the existing market, and part quantity has reduced 50%, and the whole weight of circuit breaker has alleviateed 30%, and the circuit breaker in this structure states operation box 1 and is a holistic mechanism case, and the circuit breaker three-phase has been connected by coordinated type drive mechanism and has been constituteed three-phase integral type divide-shut brake to more family has guaranteed the synchronism of three-phase, and more succinct than former mechanism in the installation cooperation, it is more convenient to maintain and change.
Specifically, the linkage type transmission mechanism comprises a linkage long plate 4, two V-shaped transmission connecting levers 5, a middle driving connecting lever 6 and a brake separating spring 7, a cross beam 8 is fixed inside the operation box body 1, the corners of the two V-shaped transmission connecting levers 5 and the middle part of the middle driving connecting lever 6 between the two V-shaped transmission connecting levers 5 are rotatably installed on the cross beam 8, one ends of the middle driving connecting lever 6 and the two V-shaped transmission connecting levers 5 are respectively rotatably connected with the lower ends of the insulating pull rods 3 at the corresponding positions, the other ends of the middle driving connecting lever 6 and the two V-shaped transmission connecting levers 5 are rotatably connected with the linkage long plate 4 positioned above the cross beam 8, the end part of the linkage long plate 4 is connected with one end of the brake separating spring 7, the other end of the brake separating spring 7 is hung with a fixing pin 9 arranged on the side wall of the operation box body 1, the lower end of the middle driving connecting lever 6 is positioned between a permanent magnet mechanism 10 and, the lower end of the middle driving connecting lever 6 is driven to move left or right through the linkage type transmission mechanism to realize the synchronous disconnection or connection of three phases of the high-voltage vacuum circuit breaker, or the lower end of the middle driving connecting lever 6 is driven to move left through the manual brake separating mechanism 11 to realize the synchronous disconnection of three phases of the high-voltage vacuum circuit breaker; the complex mechanical interlocking between the circuit breaker and the cabinet body is optimized, the installation is simple, time and labor are saved, and nonferrous metal (copper bus) is saved, so that the cost is greatly reduced, the reliability of the switch is improved, and the installation space and the occupied area are saved.
Specifically, the manual opening mechanism 11 comprises a cam 14, a rotating shaft 17 and a torsion spring 16, the rotating shaft 17 is rotatably mounted on a support frame 13 on the inner bottom surface of the operation box body 1 and extends out of the operation box body 1, the cam 14 is fixed on the rotating shaft 17, one end of the torsion spring 16 sleeved on the rotating shaft 17 is positioned by a positioning pin inside the operation box body 1, the other end of the torsion spring 16 is positioned on a handle at the lower end of the cam 14, the permanent magnet mechanism 10 is fixed on the inner bottom surface of the operation box body 1, a push rod 15 is fixed on an output shaft of the permanent magnet mechanism 10, the lower end of a middle driving crank arm 6 in the linkage type transmission mechanism is positioned between the push rod 15 and the cam 14, and an output shaft of the electrified permanent magnet mechanism 10 drives the push rod 15 to push the lower end of the middle driving crank arm 6 to move to the right or left so that an insulating, the handle at the lower end of the anticlockwise rotating cam 14 pushes the lower end of the middle driving crank arm 6 to move left by the cam 14, so that the insulating pull rod 3 at the lower end of the three solid-sealed poles 2 synchronously moves downwards to realize the synchronous disconnection of three phases of the high-voltage vacuum circuit breaker; in the above structure, the permanent magnet mechanism 10 is a conventional VSM permanent magnet mechanism, and the manual opening mechanism 11 and the permanent magnet mechanism 10 are both in the prior art and are not described again.
Specifically, a brake separating buffer 12 is arranged on the inner bottom surface of the operation box body 1, and the brake separating buffer 12 is positioned at the lower end of one of the insulating pull rods 3; specifically, the vacuum arc-extinguishing chamber and the upper and lower outlet terminals in the solid-sealed polar pole 2 are all cast and sealed into a whole by adopting APG epoxy resin; the vacuum arc-extinguishing chamber and the upper and lower wire-outgoing ends are poured and sealed in the high-strength pole main body by APG epoxy resin, the complicated assembly adjustment link of a three-phase main loop is simplified, the damage to the vacuum arc-extinguishing chamber possibly caused in the assembly process and the looseness of bolt joints caused by vibration are reduced, the specially manufactured conductive copper piece has good electric field distribution, the unique epoxy resin pole has ageing resistance, high temperature resistance, low temperature resistance and higher mechanical strength, and the defect that the outer surface of the arc-extinguishing chamber of the vacuum circuit breaker taking air as an insulating medium is easily damaged is completely avoided.
The technical scheme is that a linkage type transmission mechanism for driving the insulating pull rods 3 at the lower ends of three solid-sealed polar columns 2 to synchronously act is arranged in an operation box body 1, three-phase synchronous on-off of a high-voltage vacuum circuit breaker is realized under the drive of a permanent magnet mechanism 10, or three-phase synchronous off of the high-voltage vacuum circuit breaker is completed under the drive of a manual opening mechanism 11, the synchronism of three items of the circuit breaker is ensured, a structure that two V-shaped transmission connecting levers 5 and a middle driving connecting lever 6 which are rotatably arranged on a cross beam 8 are connected with a linkage long plate 4 is adopted, on the premise that the lower end of the middle driving connecting lever 6 moves left and right, the synchronous action of the three insulating pull rods 3 connected with the two V-shaped transmission connecting levers 5 and the middle driving connecting lever 6 can be ensured, a three-phase integrated opening and closing structure is formed, necessary conditions are provided for the three, installation cooperation structure is more succinct easy assembly than original structure, seal the vacuum interrupter in the utmost point post 2 admittedly and upper and lower leading-out terminals all adopt APG epoxy resin pouring solid to seal as an organic wholely, the damage that probably leads to the fact the vacuum interrupter in the assembling process and bolted connection department cause not hard up drawback owing to the vibration, high-voltage vacuum circuit breaker's structure has been optimized, it is convenient to maintain and change, the manufacturing cost of circuit breaker has been reduced, the reliability of circuit breaker has been improved, installation space and area have been saved, miniaturized vacuum circuit breaker not only can vertically install, still can transversely install, can be used to in the less fixed cubical switchboard of volume.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. Miniaturized high-voltage vacuum circuit breaker with three-phase coordinated type permanent magnetism operating device, including operation box (1) and three solid utmost point post (2) that seal of locating operation box (1) upper end, its characterized in that: the high-voltage vacuum circuit breaker is characterized in that a linkage type transmission mechanism is arranged inside the operation box body (1), an insulating pull rod (3) at the lower end of each solid-sealed pole (2) extends into the operation box body (1) and is connected with the linkage type transmission mechanism, a permanent magnet mechanism (10) and a manual opening mechanism are arranged inside the operation box body (1), the lower end of the linkage type transmission mechanism is located between the permanent magnet mechanism (10) and the manual opening mechanism (11), the linkage type transmission mechanism is driven by the permanent magnet mechanism (10) to act to realize three-phase synchronous on-off of the high-voltage vacuum circuit breaker, or the linkage type transmission mechanism is driven by the manual opening mechanism (11) to realize three-phase synchronous off of the high-voltage vacuum circuit breaker.
2. The miniaturized high-voltage vacuum circuit breaker with a three-phase linkage type permanent magnet operating mechanism according to claim 1, characterized in that: the linkage type transmission mechanism comprises a linkage long plate (4), two V-shaped transmission connecting levers (5), a middle driving connecting lever (6) and a brake separating spring (7), wherein a cross beam (8) is fixed inside the operation box body (1), the corners of the two V-shaped transmission connecting levers (5) and the middle part of the middle driving connecting lever (6) between the two V-shaped transmission connecting levers (5) are respectively rotatably installed on the cross beam (8), the middle driving connecting lever (6) and one end of each of the two V-shaped transmission connecting levers (5) are respectively rotatably connected with the lower end of an insulating pull rod (3) at the corresponding position, the other ends of the middle driving connecting lever (6) and the two V-shaped transmission connecting levers (5) are rotatably connected with the linkage long plate (4) positioned above the cross beam (8), the end of the linkage long plate (4) is connected with one end of the brake separating spring (7), and the other end of the brake separating spring (7) is hung with a fixing pin (9) arranged on the side wall of the operation box body (1), the lower end of the middle driving connecting lever (6) is positioned between the permanent magnet mechanism (10) and the manual opening mechanism (11), and the linkage type transmission mechanism drives the lower end of the middle driving connecting lever (6) to move left or right to realize three-phase synchronous disconnection or connection of the high-voltage vacuum circuit breaker, or the manual opening mechanism (11) drives the lower end of the middle driving connecting lever (6) to move left to realize three-phase synchronous disconnection of the high-voltage vacuum circuit breaker.
3. The miniaturized high-voltage vacuum circuit breaker with a three-phase linkage type permanent magnet operating mechanism according to claim 1, characterized in that: the manual switching-off mechanism (11) comprises a cam (14), a rotating shaft (17) and a torsion spring (16), the rotating shaft (17) is rotatably installed on a support frame (13) on the inner bottom surface of the operation box body (1) and extends out of the operation box body (1) to be arranged, the cam (14) is fixed on the rotating shaft (17), one end of the torsion spring (16) sleeved on the rotating shaft (17) is positioned through a positioning pin inside the operation box body (1), the other end of the torsion spring (16) is positioned on a handle at the lower end of the cam (14), the permanent magnet mechanism (10) is fixed on the inner bottom surface of the operation box body (1), a mandril (15) is fixed on an output shaft of the permanent magnet mechanism (10), the lower end of a middle driving crank arm (6) in the linkage type transmission mechanism is positioned between the mandril (15) and the cam (14), and the output shaft of the permanent magnet mechanism (10) after electrification drives the mandril (15) to push the lower end of the (3) The three phases of the high-voltage vacuum circuit breaker are synchronously switched on and off by synchronously moving upwards or downwards, the handle at the lower end of the anticlockwise rotating cam (14) pushes the lower end of the middle driving crank arm (6) to move leftwards by the cam (14) so that the insulating pull rod (3) at the lower end of the three solid-sealed polar columns (2) synchronously moves downwards to realize the three phases of the high-voltage vacuum circuit breaker.
4. A miniaturized high voltage vacuum circuit breaker with a three-phase linkage permanent magnet operating mechanism according to claim 1 or 2 or 3, characterized in that: the bottom surface in the operation box body (1) is provided with a brake separating buffer (12), and the brake separating buffer (12) is positioned at the lower end of one of the insulating pull rods (3).
5. A miniaturized high-voltage vacuum circuit breaker with a three-phase linkage permanent magnet operating mechanism according to claim 4, characterized in that: and the vacuum arc-extinguishing chamber and the upper and lower outlet terminals in the solid-sealed polar pole (2) are all poured and sealed into a whole by APG epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020494278.XU CN211828619U (en) | 2020-04-08 | 2020-04-08 | Miniaturized high-voltage vacuum circuit breaker with three-phase linkage type permanent magnet operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020494278.XU CN211828619U (en) | 2020-04-08 | 2020-04-08 | Miniaturized high-voltage vacuum circuit breaker with three-phase linkage type permanent magnet operating mechanism |
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| Publication Number | Publication Date |
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| CN211828619U true CN211828619U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020494278.XU Active CN211828619U (en) | 2020-04-08 | 2020-04-08 | Miniaturized high-voltage vacuum circuit breaker with three-phase linkage type permanent magnet operating mechanism |
Country Status (1)
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|---|---|
| CN (1) | CN211828619U (en) |
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2020
- 2020-04-08 CN CN202020494278.XU patent/CN211828619U/en active Active
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