CN216597399U - Longitudinal rotary vacuum circuit breaker - Google Patents
Longitudinal rotary vacuum circuit breaker Download PDFInfo
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- CN216597399U CN216597399U CN202121976407.XU CN202121976407U CN216597399U CN 216597399 U CN216597399 U CN 216597399U CN 202121976407 U CN202121976407 U CN 202121976407U CN 216597399 U CN216597399 U CN 216597399U
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- isolation moving
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Abstract
The utility model discloses a longitudinal rotary vacuum circuit breaker, which comprises a rotary bracket rotationally connected with a mechanism box; the rotary bracket is longitudinally connected with three vacuum bubble rotary brackets in a front-back sequence; a vacuum bubble is arranged in the vacuum bubble rotating support, and an upper isolation moving contact lifting assembly and a lower isolation moving contact lifting assembly which are used for connecting the contact finger assembly are arranged at two ends of the vacuum bubble rotating support; a connecting rod transmission mechanism for controlling vacuum bubble combination and separation is arranged in the rotating bracket; and a transmission mechanism for controlling the upper isolation moving contact lifting component and the lower isolation moving contact lifting component to lift is arranged on the side of the rotating support. Through the integral type supporting structure of special design, reduce radius of rotation, through the connecting rod drive mechanism of integration in runing rest, reduced the volume of whole circuit breaker. The upper isolation moving contact and the lower isolation moving contact are electrically connected with the contact finger assembly through the cylindrical upper isolation moving contact and the cylindrical lower isolation moving contact, so that the service life of the upper isolation moving contact and the service life of the lower isolation moving contact are effectively prolonged, and the safety is improved.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a longitudinal rotary vacuum circuit breaker.
Background
The vertical rotary circuit breaker in the prior art adopts a structure that the circuit breaker is matched with a three-phase pole, and when the vertical rotary circuit breaker works, the circuit breaker can be opened and closed under the load, and the three-phase pole is used for realizing the non-load switching-on or switching-off. Because the circuit breaker needs to be provided with an independent power device for realizing rapid switching-off and switching-on of the circuit breaker, and a certain space needs to be reserved for the three-phase pole for operation, the size of the whole isolating switch is larger, and the structure is more complex.
Moving contacts arranged at the end part of an isolation knife of a longitudinal rotary type circuit breaker in the prior art are connected into a main loop by adopting a duckbilled sliding structure, for example, a patent with an authorization publication number of CN101178989B discloses a longitudinal rotary type functional composite vacuum isolation circuit breaker, and a spoon-shaped contact structure disclosed in the longitudinal rotary type functional composite vacuum isolation circuit breaker is widely used in the longitudinal rotary type circuit breaker, so that the structure has short service life, and the moving cabinet adopting the type of contact cannot realize larger rated current due to the temperature rise problem and cannot realize serialization due to the limitation of the contact structure; meanwhile, three-phase poles in the longitudinal rotary circuit breaker in the prior art are usually arranged on the side of a rotating shaft, so that the rotating radius is increased, the size of the switch cabinet is increased, the rotating shaft of the metal structure can also increase the space between the three-phase poles, and the size of the switch cabinet is further increased.
In view of this, there is a need in the art for a circuit breaker that is smaller, has a longer service life, is safer, and has a simpler structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the longitudinal rotation type vacuum circuit breaker which is compact in structure, long in service life, high in safety coefficient and simple in structure.
The utility model is realized by the following modes:
a longitudinal rotary vacuum circuit breaker comprises a rotary bracket which is rotationally connected with a mechanism box; the rotary bracket is longitudinally connected with three vacuum bubble rotary brackets in a front-back sequence; be equipped with vacuum bubble in the rotatory support of vacuum bubble, its characterized in that: an upper isolation moving contact lifting component and a lower isolation moving contact lifting component which are used for connecting the contact finger components are arranged at two ends of the vacuum bubble rotating support; a connecting rod transmission mechanism for controlling vacuum bubble combination and separation is arranged in the rotating bracket; and a transmission mechanism for controlling the upper isolation moving contact lifting component and the lower isolation moving contact lifting component to lift is arranged on the side of the rotating support.
Furthermore, the rotating bracket and the vacuum bulb rotating bracket are both of hollow structures; the rotating bracket and the vacuum bulb rotating bracket are integrally formed insulating brackets; the central axis of the vacuum bubble rotating bracket is perpendicular to and intersected with the central axis of the rotating bracket.
Further, the vacuum bubble rotating bracket penetrates through the rotating bracket; the distances between the two ends of the vacuum bubble rotating bracket are unequal.
Furthermore, the upper isolation moving contact lifting component comprises an upper conductive cylinder fixedly sealed with the upper end of the vacuum bulb rotating support; an upper isolation moving contact is movably connected in the upper conductive cylinder; the lower isolation moving contact lifting component comprises a lower conductive cylinder fixedly sealed with the lower end of the vacuum bulb rotating support; and a lower isolation moving contact is movably connected in the lower conductive cylinder.
Further, the connecting rod transmission mechanism comprises a crank arm hinged inside the rotating support and a connecting rod which is arranged inside the rotating support and can axially slide; two ends of the crank arm are respectively provided with a first hole and a second hole; the first hole is rotationally connected with the vacuum bubble conductive cylinder through a vacuum bubble driving pin; the hole two-way is rotatably connected with the connecting rod through a connecting rod pin.
Further, the connecting rod controls the axial left-right movement of the connecting rod through the mechanism box.
Further, the transmission mechanism comprises a power shaft connected with the mechanism box; the power shaft is arranged in parallel to the rotating bracket; a transmission bevel gear is arranged on the power shaft opposite to the vacuum bubble rotating bracket; an upper transmission shaft and a lower transmission shaft are meshed at the upper end and the lower end of the transmission bevel gear; the upper transmission shaft is connected with the upper isolation moving contact lifting assembly; the lower transmission shaft is connected with the lower isolation moving contact lifting component.
Furthermore, a driving tooth is arranged at the end part of the upper transmission shaft; the driving teeth are meshed with the driving piece through a plurality of connecting gears; and the central shaft part of the driving piece is in threaded connection with an upper isolation moving contact in the upper isolation moving contact lifting assembly and is used for driving the upper isolation moving contact to move up and down.
Furthermore, a driving tooth is arranged at the end part of the lower transmission shaft; the driving teeth are meshed with the driving piece through a plurality of connecting gears; and the central shaft part of the driving piece is in threaded connection with a lower isolation moving contact in the lower isolation moving contact lifting assembly and is used for driving the lower isolation moving contact to move up and down.
Further, the connecting gear is provided with two connecting gears.
The utility model has the beneficial effects that: through the integrated support structure of special design, reduced the volume and reduced the radius of rotation, through the connecting rod drive mechanism of integration in runing rest, greatly reduced the volume of whole circuit breaker. Meanwhile, the linear structure design of the main circuit is realized, namely, the double-isolation vacuum bubble conductive cylinders at two ends are positioned on the same straight line, so that the size of the circuit breaker is further reduced.
Meanwhile, the upper isolation moving contact and the lower isolation moving contact which are cylindrical are electrically connected with the contact finger assembly, so that the service life of the upper isolation moving contact and the service life of the lower isolation moving contact can be effectively prolonged, and the safety is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a vertical rotary vacuum circuit breaker according to the present invention;
FIG. 2 is an enlarged view of portion A of the present invention;
FIG. 3 is a schematic view of a partial structure of a vertical rotary vacuum circuit breaker according to the present invention;
FIG. 4 is a schematic view of a link mechanism according to the present invention;
FIG. 5 is a schematic view of the structure of the transmission mechanism of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1 to 5, a vertical rotary vacuum circuit breaker includes a rotary bracket 1 rotatably connected to a mechanism case; the rotary bracket 1 is longitudinally connected with three vacuum bubble rotary brackets 2 in a front-back order; be equipped with vacuum bubble 3 in the rotatory support of vacuum bubble 2, its characterized in that: an upper isolation moving contact lifting component 5 and a lower isolation moving contact lifting component 6 which are used for connecting the contact finger component 4 are arranged at two ends of the vacuum bubble rotating support 2; a connecting rod transmission mechanism 7 for controlling the closing and the opening of the vacuum bubbles 3 is arranged in the rotating bracket 1; and a transmission mechanism 8 for controlling the upper isolation moving contact lifting component 5 and the lower isolation moving contact lifting component 6 to lift is arranged on the side of the rotating support 1.
In an embodiment of the present invention, the rotating bracket 1 and the vacuum bulb rotating bracket 2 are both hollow structures; the rotating bracket 1 and the vacuum bulb rotating bracket 2 are integrally formed insulating brackets; the central axis of the vacuum bulb rotating bracket 2 is perpendicular to and intersected with the central axis of the rotating bracket 1. In one embodiment of the present invention, the vacuum bulb rotating bracket 2 penetrates through the rotating bracket 1; the distances between the two ends of the vacuum bulb rotating bracket 2 at the two ends of the rotating bracket 1 are unequal. When actual installation, because the volume of the connecting rod drive mechanism 7 of control vacuum bubble 3 close and divide can be done less, consequently vacuum bubble runing rest 2 most is located the unilateral of runing rest 1, run through the offside of runing rest 1 only reserve the installation down keep apart moving contact lifting unit 6 the space can, perhaps directly on runing rest 1 with vacuum bubble runing rest 2 relative position department set up down keep apart moving contact lifting unit 6, the volume of reducing that can be better, conveniently with connecting rod drive mechanism 7 whole setting inside runing rest 1, remove the quick close and divide of quick realization vacuum bubble 3 about the axial through connecting rod 72.
In an embodiment of the present invention, the upper isolated moving contact lifting assembly 5 includes an upper conductive tube 51 sealed with the upper end of the vacuum bubble rotating bracket 2; an upper isolation moving contact 52 is movably connected in the upper conductive tube 51; the lower isolation moving contact lifting component 6 comprises a lower conductive cylinder 61 fixedly sealed with the lower end of the vacuum bubble rotating bracket 2; the lower conductive tube 61 is movably connected with a lower isolation moving contact 62. The upper isolation moving contact 52 and the lower isolation moving contact 62 are both cylindrical, and internal threads are arranged in the upper isolation moving contact and the lower isolation moving contact, and the internal threads are matched with external threads of a central shaft part of the driving piece 833, so that when the driving piece 833 rotates, the upper isolation moving contact 52 and the lower isolation moving contact 62 are driven to move up and down to complete electric connection with a main loop.
In an embodiment of the present invention, the connecting rod transmission mechanism 7 includes a connecting rod 71 hinged inside the rotating bracket 1 and a connecting rod 72 disposed inside the rotating bracket 1 and capable of sliding axially; two ends of the crank arm 71 are respectively provided with a first hole 73 and a second hole 74; the first hole 73 is rotatably connected with the vacuum bubble conductive cylinder 76 through a vacuum bubble driving pin 75; the second hole 74 is rotatably connected to the link 72 by a link pin 77. In order to reduce the friction between the first hole 73 and the vacuum bubble driving pin 75, the second hole 74 and the connecting rod pin 77 and convert the friction between the first hole 73 and the second hole 74 into rolling friction, the first hole 73 and the second hole 74 are kidney-shaped holes.
In one embodiment of the present invention, the connecting rod 72 is controlled to move axially left and right by the mechanism box.
In one embodiment of the present invention, the transmission mechanism 8 comprises a power shaft 81 connected to the mechanism box; the power shaft 81 is arranged in parallel to the rotating bracket 1; a transmission bevel gear 82 is arranged on the power shaft 81 opposite to the vacuum bulb rotating bracket 2; the upper end and the lower end of the transmission bevel gear 82 are engaged with an upper transmission shaft 83 and a lower transmission shaft 84; the upper transmission shaft 83 is connected with the upper isolation moving contact lifting component 5; the lower transmission shaft 84 is connected with the lower isolated moving contact lifting assembly 6.
In an embodiment of the present invention, the end of the upper transmission shaft 83 is provided with a driving tooth 831; the driving teeth 831 are meshed with a driving piece 833 through a plurality of connecting gears 832; the central shaft part of the driving member 833 is in threaded connection with the upper isolating movable contact 52 in the upper isolating movable contact lifting assembly 5 to drive the upper isolating movable contact 52 to move up and down.
In an embodiment of the present invention, the end of the lower transmission shaft 84 is provided with a driving tooth 831; the driving teeth 831 are meshed with a driving piece 833 through a plurality of connecting gears 832; the central shaft part of the driving member 833 is in threaded connection with the lower isolation moving contact 62 in the lower isolation moving contact lifting assembly 6 to drive the lower isolation moving contact 62 to move up and down.
In one embodiment of the present invention, there are two connecting gears 832.
The working principle is as follows: the rotating bracket 1 is controlled to rotate through the mechanism box, when the rotating bracket 1 rotates for a certain angle to cause that the contact finger assembly 4 and the upper isolation moving contact lifting assembly 5 are not in relative positions, the circuit breaker is in a double-isolation opening state, and the whole main loop is not switched on. When the contact finger assembly 4 and the upper isolating moving contact lifting assembly 5 face each other by rotating to a certain angle, the mechanism box further drives the driving piece 833 to rotate by controlling the power shaft 81 to rotate so as to enable the upper isolating moving contact 52 and the lower isolating moving contact 62 to be connected with the contact finger assembly to enter a main loop; the closing and opening actions of the vacuum bubbles 3 are completed through a connecting rod transmission mechanism 7 located in the rotating support 1, a connecting rod 72 in the connecting rod transmission mechanism 7 axially moves left and right in the rotating support 1 under the control of a mechanism box, as shown in fig. 4, when the connecting rod 72 moves rightwards, the connecting rod 72 drives a connecting lever 71 to rotate, so that a vacuum bubble conductive cylinder 76 moves downwards, the vacuum bubble opening actions are completed, and when the reverse connecting rod 72 moves leftwards, the connecting rod 72 drives the connecting lever 71 to rotate, so that the vacuum bubble conductive cylinder 76 moves upwards, and the vacuum bubble closing actions are completed.
The utility model reduces the volume and the rotating radius through the integrated bracket structure with special design, and greatly reduces the volume of the whole circuit breaker through the connecting rod transmission mechanism integrated in the rotating bracket. Meanwhile, the linear structure design of the main circuit is realized, namely, the double-isolation vacuum bubble conductive cylinders at two ends are positioned on the same straight line, so that the size of the circuit breaker is further reduced.
Meanwhile, the upper isolation moving contact and the lower isolation moving contact which are cylindrical are electrically connected with the contact finger assembly, so that the service life of the upper isolation moving contact and the service life of the lower isolation moving contact can be effectively prolonged, and the safety is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A longitudinal rotary vacuum circuit breaker comprises a rotary bracket (1) which is rotationally connected with a mechanism box; the rotary bracket (1) is longitudinally connected with three vacuum bubble rotary brackets (2) in a front-back sequence; be equipped with vacuum bubble (3) in vacuum bubble runing rest (2), its characterized in that: an upper isolation moving contact lifting component (5) and a lower isolation moving contact lifting component (6) which are used for connecting the contact finger component (4) are arranged at two ends of the vacuum bubble rotating bracket (2); a connecting rod transmission mechanism (7) for controlling the closing and the opening of the vacuum bubbles (3) is arranged in the rotating bracket (1); and a transmission mechanism (8) for controlling the upper isolation moving contact lifting component (5) and the lower isolation moving contact lifting component (6) to lift is arranged on the side of the rotating support (1).
2. A longitudinal rotary vacuum circuit breaker according to claim 1, characterized in that: the rotating bracket (1) and the vacuum bulb rotating bracket (2) are both hollow structures; the rotating bracket (1) and the vacuum bulb rotating bracket (2) are integrally formed insulating brackets; the central axis of the vacuum bubble rotating bracket (2) is vertical to and intersected with the central axis of the rotating bracket (1).
3. A longitudinal rotary vacuum circuit breaker according to claim 1, wherein: the upper isolation moving contact lifting component (5) comprises an upper conductive cylinder (51) fixedly sealed with the upper end of the vacuum bulb rotating bracket (2); an upper isolation moving contact (52) is movably connected in the upper conductive tube (51); the lower isolation moving contact lifting component (6) comprises a lower conductive cylinder (61) fixedly sealed with the lower end of the vacuum bulb rotating support (2); and a lower isolation moving contact (62) is movably connected in the lower conductive cylinder (61).
4. A longitudinal rotary vacuum circuit breaker according to claim 1, characterized in that: the connecting rod transmission mechanism (7) comprises a crank arm (71) hinged inside the rotating support (1) and a connecting rod (72) which is arranged inside the rotating support (1) and can axially slide; two ends of the crank arm (71) are respectively provided with a first hole (73) and a second hole (74); the first hole (73) is rotatably connected with the vacuum bubble conductive cylinder (76) through a vacuum bubble driving pin (75); the second hole (74) is rotatably connected with the connecting rod (72) through a connecting rod pin (77).
5. A longitudinal rotary vacuum circuit breaker according to claim 4, wherein: the connecting rod (72) controls the axial left-right movement of the connecting rod through the mechanism box.
6. A longitudinal rotary vacuum circuit breaker according to claim 1, characterized in that: the transmission mechanism (8) comprises a power shaft (81) connected with the mechanism box; the power shaft (81) is arranged in parallel to the rotating bracket (1); a transmission bevel gear (82) is arranged on the power shaft (81) opposite to the vacuum bulb rotating bracket (2); an upper transmission shaft (83) and a lower transmission shaft (84) are meshed at the upper end and the lower end of the transmission bevel gear (82); the upper transmission shaft (83) is connected with the upper isolation moving contact lifting component (5); the lower transmission shaft (84) is connected with the lower isolation moving contact lifting component (6).
7. A longitudinal rotary vacuum circuit breaker according to claim 6, wherein: the end part of the upper transmission shaft (83) is provided with a driving tooth (831); the driving tooth (831) is meshed with the driving piece (833) through a plurality of connecting gears (832); the central shaft part of the driving piece (833) is in threaded connection with the upper isolation moving contact (52) in the upper isolation moving contact lifting component (5) and is used for driving the upper isolation moving contact (52) to move up and down.
8. A longitudinal rotary vacuum circuit breaker according to claim 6, wherein: the end part of the lower transmission shaft (84) is provided with a driving tooth (831); the driving tooth (831) is meshed with the driving piece (833) through a plurality of connecting gears (832); and the central shaft part of the driving piece (833) is in threaded connection with the lower isolating moving contact (62) in the lower isolating moving contact lifting assembly (6) and is used for driving the lower isolating moving contact (62) to move up and down.
9. A longitudinal rotary vacuum circuit breaker according to claim 7 or 8, wherein: the number of the connecting gears (832) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976407.XU CN216597399U (en) | 2021-08-20 | 2021-08-20 | Longitudinal rotary vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976407.XU CN216597399U (en) | 2021-08-20 | 2021-08-20 | Longitudinal rotary vacuum circuit breaker |
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| Publication Number | Publication Date |
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| CN216597399U true CN216597399U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121976407.XU Active CN216597399U (en) | 2021-08-20 | 2021-08-20 | Longitudinal rotary vacuum circuit breaker |
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| CN (1) | CN216597399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064412A (en) * | 2022-06-28 | 2022-09-16 | 山东国信电力科技有限公司 | High-voltage capacitor fling-cut switch and control method thereof |
-
2021
- 2021-08-20 CN CN202121976407.XU patent/CN216597399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064412A (en) * | 2022-06-28 | 2022-09-16 | 山东国信电力科技有限公司 | High-voltage capacitor fling-cut switch and control method thereof |
| CN115064412B (en) * | 2022-06-28 | 2023-03-14 | 山东国信电力科技有限公司 | High-voltage capacitor fling-cut switch and control method thereof |
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