CN115692104A - Novel vacuum contactor - Google Patents
Novel vacuum contactor Download PDFInfo
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- CN115692104A CN115692104A CN202211427629.5A CN202211427629A CN115692104A CN 115692104 A CN115692104 A CN 115692104A CN 202211427629 A CN202211427629 A CN 202211427629A CN 115692104 A CN115692104 A CN 115692104A
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Abstract
The invention provides a novel vacuum contactor, comprising: the driving spline main transmission shaft, the crank arm with the roller, the transition buckle plate, the rocker arm, the opening half shaft, the opening button and the single-coil electromagnetic mechanism are arranged; the single-coil electromagnetic mechanism is connected with the driving spline main transmission shaft, the driving spline main transmission shaft is connected with the turning arm with the roller in a spline shaft tooth meshing mode, the transition buckle plate is movably connected with the turning arm with the roller, the transition buckle plate is further connected with the rocker arm, and the opening half shaft is used for limiting the rocker arm; the opening button is connected with the opening half shaft. The invention adopts mature and conventional product parts, can adopt universal parts, has short purchase period, ensures the price and has more reliable performance.
Description
Technical Field
The invention relates to the technical field of high-voltage vacuum contactors for 10-35 KV high-voltage power supply and distribution projects, in particular to a novel vacuum contactor.
Background
The vacuum contactor mainly comprises a vacuum arc-extinguishing chamber and an operating mechanism. The vacuum arc-extinguishing chamber has two functions of reliably extinguishing the arc when the working current is passed through and cut off frequently. But not to cut off overload and short-circuit currents. The operating mechanism is composed of a holding coil with an iron core and an armature. Energizing the coil to attract the armature and closing the contactor; and when the coil loses power, the contactor is disconnected. The holding coil generally has two forms of direct current and alternating current.
The housing of the vacuum arc-extinguishing chamber is made of glass or ceramic insulating material, and the internal vacuum degree is usually above 0.01 Pa. Because the air in the shell is less, the contact opening distance can be made very small, and the electric arc is also easier to extinguish. The contact material is generally made of copper, antimony, osmium and other alloys. The effect of shield cover in the explosion chamber is that when breaking current, the metallic vapor that diffuses out in the contact clearance that condenses helps putting out an arc, can also prevent that metallic vapor from spattering and falling and reducing its dielectric strength on insulating casing. The moving contact is connected with the lower end of the shell through a corrugated pipe, and the moving contact can move up and down and cannot leak air.
The contactor mechanism in the prior art mostly adopts purpose-made parts, the purchase cycle is long, the manufacturing cost is high, and the external shape of the contactor cabinet matching body is special and can not be matched with a conventional switch cabinet.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a novel vacuum contactor.
In order to achieve the purpose, the invention provides the following scheme:
a novel vacuum contactor, comprising: the driving spline main transmission shaft, the crank arm with the roller, the transition buckle plate, the rocker arm, the opening half shaft, the opening button and the single coil electromagnetic mechanism are arranged;
the single-coil electromagnetic mechanism is connected with the driving spline main transmission shaft, the driving spline main transmission shaft is connected with the turning arm with the roller in a spline shaft tooth meshing mode, the transition buckle plate is movably connected with the turning arm with the roller, the transition buckle plate is also connected with the rocker arm, and the opening half shaft is used for limiting the rocker arm; the opening button is connected with the opening half shaft.
Preferably, the method further comprises the following steps: a mechanism housing;
the mechanism shell is respectively connected with the single-coil electromagnetic mechanism, the transition buckle plate, the crank arm with the roller, the rocker arm and the opening half shaft through shaft pins.
Preferably, the single-coil electromagnetic mechanism comprises a connector, a main shaft driving main crank arm, a connecting plate and a positioning connecting plate;
the single-coil electromagnetic mechanism is fixedly connected with the connector through internal and external threads; the connector is connected with the connecting plate through a shaft pin; the main shaft drives the main crank arm to be connected with the connecting plate through a pin shaft; the positioning connecting plate is connected with the connecting plate through a pin shaft and is connected with the mechanism shell through a pin shaft.
Preferably, the transition buckle plate is internally provided with a first rotating shaft, a first reset torsion spring and a roller;
the transition buckle plate is respectively connected with the first rotating shaft and the first reset torsion spring; the roller is connected with the rocker arm.
Preferably, the rocker arm contains a second reset torsion spring and a second rotating shaft;
the rocker arm is respectively connected with the second reset torsion spring and the second rotating shaft; the second rotating shaft is connected with the mechanism shell through a shaft pin.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a novel vacuum contactor, comprising: the driving spline main transmission shaft, the crank arm with the roller, the transition buckle plate, the rocker arm, the opening half shaft, the opening button and the single-coil electromagnetic mechanism are arranged; the single-coil electromagnetic mechanism is connected with the driving spline main transmission shaft, the driving spline main transmission shaft is connected with the turning arm with the roller in a spline shaft tooth meshing mode, the transition buckle plate is movably connected with the turning arm with the roller, the transition buckle plate is also connected with the rocker arm, and the opening half shaft is used for limiting the rocker arm; the opening button is connected with the opening half shaft. The invention adopts mature and conventional product parts, can adopt general parts, has short purchase period, guaranteed price and more reliable performance, and in the specific embodiment, the appearance of the invention is completely matched with the prior conventional switch cabinet, and the interchangeability is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is an internal view of an optimized contactor according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an optimized contactor profile matching cabinet according to an embodiment of the present invention.
Description of reference numerals:
1-driving a splined main transmission shaft; 2-crank arm with roller; 3-a transition buckle plate; 3.1-first axis of rotation; 3.2-a first return torsion spring; 3.3-rollers; 4-a rocker arm; 4.1-a second return torsion spring; 4.2-second rotating shaft; 5-opening half shaft; 6-opening the brake button; 7-single coil electromagnetic mechanism; 7.1-a connector; 7.2-the main shaft drives the main crank arm; 7.3-connecting plate; 7.4-positioning the connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, the inclusion of a list of steps, processes, methods, etc. is not limited to only those steps recited, but may alternatively include additional steps not recited, or may alternatively include additional steps inherent to such processes, methods, articles, or devices.
The invention aims to provide a novel vacuum contactor, which adopts mature and conventional product parts, can adopt general parts, has short purchase period and more reliable performance, and has guaranteed price.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is an internal view of an optimized contactor according to an embodiment of the present invention, and a novel vacuum contactor includes: the mechanism comprises a mechanism shell, a driving spline main transmission shaft 1, a crank arm 2 with a roller, a transition buckle plate 3, a rocker arm 4, a brake-separating half shaft 5, a brake-separating button 6 and a single-coil electromagnetic mechanism 7;
the single-coil electromagnetic mechanism 7 is connected with the driving spline main transmission shaft 1, the driving spline main transmission shaft 1 is connected with the turning arm 2 with the roller in a spline shaft tooth meshing mode, the transition buckle plate 3 is movably connected with the turning arm 2 with the roller, the transition buckle plate 3 is further connected with the rocker arm 4, and the opening half shaft 5 is used for limiting the rocker arm 4; the opening button 6 is connected with the opening half shaft 5.
The mechanism shell is respectively connected with the single-coil electromagnetic mechanism 7, the transition buckle plate 3, the crank arm 2 with the roller, the rocker arm 4 and the opening half shaft 5 through shaft pins.
Specifically, the mechanism shell is a whole contactor rack, is a sheet metal welding part and is used for bearing all parts and positioning.
Preferably, the single-coil electromagnetic mechanism 7 contains a connector 7.1, a main shaft driving main crank arm 7.2, a connecting plate 7.3 and a positioning connecting plate 7.4; the single-coil electromagnetic mechanism 7 is fixedly connected with the connector 7.1 through internal and external threads; the connector 7.1 is connected with the connecting plate 7.3 through a shaft pin; the main shaft driving main crank arm 7.2 is connected with the connecting plate 7.3 through a pin shaft; the positioning connecting plate 7.4 is connected with the connecting plate 7.3 through a pin shaft and is connected with the mechanism shell through a pin shaft.
Preferably, the transition buckle plate 3 internally comprises a first rotating shaft 3.1, a first reset torsion spring 3.2 and a roller 3.3; the transition buckle plate 3 is respectively connected with the first rotating shaft 3.1 and the first reset torsion spring 3.2; the roller 3.3 is connected to the rocker arm 4.
Preferably, the rocker arm 4 contains a second return torsion spring 4.1 and a second rotating shaft 4.2; the rocker arm 4 is respectively connected with the second reset torsion spring 4.1 and the second rotating shaft 4.2; the second rotary shaft 4.2 is connected to the mechanism housing via a pivot pin.
The working principle of the embodiment is as follows:
when the contactor receives a closing instruction, the single-coil electromagnetic mechanism 7 moves up and down through the self-provided connector 7.1, so that the connecting plate 7.3 further moves, and the main shaft 7.2 further drives the main crank arm to move clockwise;
wherein, the single-coil electromagnetic mechanism 7 is fastened with the connector 7.1 through internal and external threads; the connector 7.1 is connected with the connecting plate 7.3 through a shaft pin; the main shaft driving main crank arm 7.2 is connected with the connecting plate 7.3 through a pin shaft; the positioning connecting plate 7.4 is connected with the connecting plate 7.3 through a pin shaft and is connected with the mechanism shell through a shaft pin;
further, when main shaft drive main connecting lever 7.2 moved, drive spline final drive shaft 1 rotated to make and take gyro wheel connecting lever 2 clockwise to rotate, when taking the gyro wheel rotation on gyro wheel connecting lever 2 to surmount transition buckle 3's main part, transition buckle 3 revolves round through first pivot 3.1 and resets under the power of the first torsional spring that resets of self 3.2, thereby restriction takes gyro wheel connecting lever 2's gyro wheel, does not let it reset. Thereby completing the mechanical holding function after closing;
the driving spline main transmission shaft 1 and the crank arm 2 with the roller are connected and act in a whole spline shaft tooth meshing mode; the crank arm 2 with the roller is connected with the roller on the crank arm through a shaft pin; the crank arm 2 with the roller is connected with the mechanism shell through a shaft pin; the transition pinch plate 3 is connected with the mechanism shell through a shaft pin.
Specifically, the main shaft is a spline shaft with teeth, the inner layers of the main crank arm and the driving spline main transmission crank arm are both spline sleeves, and the spline shaft is meshed with the spline sleeves to be connected and moved.
Further, when the transition buckle plate 3 moves, the rocker arm 4 main body rotates through the roller 3.3, and the second rotating shaft 4.2 and the rocker arm 4 main body are limited on the notched opening half shaft 5 under the action of the second reset torsion spring 4.1.
The second rotating shaft 4.2 is connected with the mechanism shell through a shaft pin; the opening half shaft 5 is connected with the mechanism shell through a shaft pin; the roller 3.3 is connected with the transition pinch plate 3 through a shaft pin.
After the contactor receives the opening instruction (or through the action of the opening button 6), the opening button 6 drives the opening half shaft 5 to rotate by driving the bent plate on the opening half shaft 5, so that the main body of the rocker arm 4 is separated from the limitation of the opening half shaft 5, and the second rotating shaft 4.2 is released under the action of the second reset torsion spring 4.1.
The main body of the opening button 6 is fastened with the mechanism shell through screws; and the bent plate on the opening half shaft 5 is fastened with the opening half shaft through a screw.
Further, after the second rotating shaft 4.2 is released, the roller 3.3 on the transition buckle plate 3 is not limited, so that the crank arm 2 with the roller is released under the action of the first reset torsion spring 3.2, the main transmission shaft 1 with the driving spline is released, and the brake separating action is completed.
In addition, in the embodiment, the vacuum contactor moves the small wheels by itself and enters the cabinet body through the U-shaped guide rail in the cabinet to realize vertical locking; furthermore, a contactor locking pin is inserted into a limit square hole in the cabinet to lock the position, so that front and back locking is realized; the main power supply current enters an upper end fixed contact through a three-phase main copper bar (the main copper bar and the fixed contact are fixedly connected through a bolt and a nut), and further the current enters the interior of the contactor through a plum blossom contact with a contraction spring of the contactor (the fixed contact is in friction contact with the plum blossom contact, and the plum blossom contact is in complete contact with the fixed contact through the plum blossom contact contraction spring). Current passes through the interior of the contactor, passes through the lower end fixed contact from the lower end plum blossom contact, goes down the main copper bar and enters the cable side (the lower main copper bar is tightly connected with the cable through bolts and nuts).
As an alternative embodiment, the opening button is a small bent plate fixed on the mechanism shell (the small bent plate is fastened on the mechanism shell through a screw), the small bent plate is provided with a hole, and the opening button is pin-shaped and is connected with the small bent plate pin hole; and the opening half shaft is connected with a hole in the mechanism shell through a pin hole. The opening half shaft is provided with a screw hole, and the bent plate is provided with a hole (the bent plate is fastened with the opening half shaft into a whole through a screw). The bent plate on the opening half shaft is positioned at the rear position of the opening button. When the opening button is pressed down, the front end of the button pushes a bent plate on the opening half shaft, so that the opening half shaft rotates.
The invention has the following beneficial effects:
1. the mechanical maintenance scheme of the invention adopts mature and conventional product parts, can adopt universal parts, has short purchase period, ensures the price and has more reliable performance;
2. the appearance of the invention is completely matched with the existing conventional switch cabinet, and the interchangeability is better.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the embodiment of the present invention are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. A novel vacuum contactor, comprising: the driving spline main transmission shaft, the crank arm with the roller, the transition buckle plate, the rocker arm, the opening half shaft, the opening button and the single coil electromagnetic mechanism are arranged;
the single-coil electromagnetic mechanism is connected with the driving spline main transmission shaft, the driving spline main transmission shaft is connected with the turning arm with the roller in a spline shaft tooth meshing mode, the transition buckle plate is movably connected with the turning arm with the roller, the transition buckle plate is also connected with the rocker arm, and the opening half shaft is used for limiting the rocker arm; the opening button is connected with the opening half shaft.
2. The novel vacuum contactor as claimed in claim 1, further comprising: a mechanism housing;
the mechanism shell is respectively connected with the single-coil electromagnetic mechanism, the transition buckle plate, the crank arm with the roller, the rocker arm and the opening half shaft through shaft pins.
3. The novel vacuum contactor as claimed in claim 1, wherein the single coil electromagnetic mechanism comprises a connector, a main shaft driving main crank arm, a connecting plate and a positioning connecting plate;
the single-coil electromagnetic mechanism is fixedly connected with the connector through internal and external threads; the connector is connected with the connecting plate through a shaft pin; the main shaft drives the main crank arm to be connected with the connecting plate through a pin shaft; the positioning connecting plate is connected with the connecting plate through a pin shaft and is connected with the mechanism shell through a pin shaft.
4. The novel vacuum contactor according to claim 1, wherein a first rotating shaft, a first return torsion spring and a roller are contained in the transition pinch plate;
the transition buckle plate is respectively connected with the first rotating shaft and the first reset torsion spring; the roller is connected with the rocker arm.
5. The novel vacuum contactor as claimed in claim 2, wherein said rocker arm contains a second return torsion spring and a second shaft;
the rocker arm is respectively connected with the second reset torsion spring and the second rotating shaft; the second rotating shaft is connected with the mechanism shell through a shaft pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211427629.5A CN115692104A (en) | 2022-11-15 | 2022-11-15 | Novel vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211427629.5A CN115692104A (en) | 2022-11-15 | 2022-11-15 | Novel vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115692104A true CN115692104A (en) | 2023-02-03 |
Family
ID=85052665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211427629.5A Pending CN115692104A (en) | 2022-11-15 | 2022-11-15 | Novel vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115692104A (en) |
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2022
- 2022-11-15 CN CN202211427629.5A patent/CN115692104A/en active Pending
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