CN210052658U - A miniaturized option switch subassembly for on-load tap changer - Google Patents
A miniaturized option switch subassembly for on-load tap changer Download PDFInfo
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- CN210052658U CN210052658U CN201920689078.7U CN201920689078U CN210052658U CN 210052658 U CN210052658 U CN 210052658U CN 201920689078 U CN201920689078 U CN 201920689078U CN 210052658 U CN210052658 U CN 210052658U
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Abstract
The utility model discloses a miniaturized selector switch subassembly for on-load tap changer, this selector switch subassembly include copper guide arm, movable contact subassembly, static contact subassembly, and insulating support, movable contact subassembly carry out linear motion under on-load tap changer actuating mechanism's drive on the copper guide arm, select corresponding static contact in the static contact subassembly, accomplish the selection of pressure regulating gear. The selection switch assembly adopts a linear design, so that the mechanical structure is greatly simplified, the volume of the selection switch assembly is reduced, and the cost is reduced; meanwhile, the selection switch assembly adopts the copper guide rod for conducting and guiding, so that the stability and the reliability of the selection switch assembly in operation are greatly improved.
Description
Technical Field
The device relates to the technical field of electric power products, in particular to a miniaturized selective switch assembly for an on-load tap changer.
Background
At present, a selection switch component used by an on-load voltage regulating switch generally adopts a cage-shaped moving contact and static contact system, and the cage-shaped moving contact and static contact system has the problems of complex mechanical structure, poor reliability, large volume, inconvenience in installation and high cost. In recent years, a plurality of technicians develop a strip-shaped on-load tap changer, but the problems of complex structure and low operation reliability of a selection switch assembly adopted by the design of the on-load tap changer still exist.
Disclosure of Invention
The utility model provides a miniaturized selector switch subassembly for on-load tap changer to solve the weak point that prior art exists.
In order to realize the purpose of the invention, the utility model adopts the technical scheme that:
a miniaturized selective switch component for an on-load voltage regulation switch is characterized by comprising two copper guide rods, a moving contact component, a static contact component and an insulating bracket;
the moving contact component comprises two moving contacts and a moving contact seat, and the two moving contacts are fixedly arranged on the moving contact seat;
the copper guide rod is fixedly arranged on the insulating bracket;
the copper guide rod is conductive and guiding, the moving contact is electrically connected with the copper guide rod, the moving contact component moves linearly on the copper guide rod, and the copper guide rod is electrically connected with other components of the on-load voltage regulating switch;
the static contact assembly comprises a plurality of static contacts and a static contact integrated base which are linearly arranged, the static contacts are fixedly arranged on the static contact integrated base, and the static contact integrated base is connected with the insulating support through a fixing stud;
the moving contact component moves on the copper guide rod under the driving of the on-load voltage regulating switch driving mechanism, and the moving contact selects the corresponding fixed contact to be electrically connected, so that the selection of a voltage regulating gear is realized.
According to the utility model discloses preferred embodiment, the contact double-screw bolt on the static contact is taken a percentage with the corresponding shunting of transformer high-voltage coil and is connected.
According to the utility model discloses preferred embodiment, the upper and lower both sides of the integrative seat of static contact set up the arch, the arch is located space outside between the static contact, the integrative seat upside of static contact the bellied plane is higher than the last plane of static contact, the integrative seat downside of static contact the bellied plane height is less than the lower plane of static contact.
According to the utility model discloses preferred embodiment, the top of moving the contact seat sets up the recess, and on-load tap changer's actuating mechanism passes through the recess with moving the contact seat is connected or is contacted, and drives moving the contact seat removes, moving the contact seat and driving the moving contact is in move on the copper guide arm.
Compared with the prior art, the utility model has the advantages that the design of the linear selection switch component is adopted, the mechanical structure of the selection switch component of the on-load voltage regulation switch is simplified, the volume of the selection switch component is greatly reduced, and the cost is reduced; meanwhile, the two copper guide rods are adopted for conducting and guiding, so that the stability and the reliability of the selection switch assembly in operation are greatly improved.
Drawings
Fig. 1 is a schematic diagram a of a structure of a miniaturized selector switch assembly for an on-load tap changer according to the present invention;
fig. 2 is a schematic diagram b of a structure of a miniaturized selector switch assembly for an on-load tap changer according to the present invention;
fig. 3 is a schematic diagram of the miniaturized selector switch assembly for on-load tap changers connected with the tap of the transformer high-voltage coil voltage-regulating winding.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The embodiments described below are merely intended to more clearly illustrate the technical solutions of the present invention, are selected embodiments of the present invention, and are not all embodiments, and therefore the scope of the present invention should not be limited thereto. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Referring to fig. 1 to 2, a miniaturized selector switch assembly for an on-load tap changer includes two copper guide rods 1.1 and 1.2, a moving contact assembly 2, a static contact assembly 3, and an insulating support 4;
the moving contact assembly 2 comprises two moving contacts 2.1 and 2.2 and a moving contact base 2.3, a groove 2.3.1 is arranged on the moving contact base, and the two moving contacts 2.1 and 2.2 are fixedly arranged on the moving contact base 2.3;
the copper guide rods 1.1 and 1.2 are fixedly arranged on the insulating bracket 4;
the copper guide rods 1.1 and 1.2 are both conductive rods and guide rods, the moving contacts 2.1 and 2.2 are respectively and electrically connected with the copper guide rods 1.1 and 1.2, and the moving contact component 2 moves linearly on the copper guide rods 1.1 and 1.2.
The static contact component 3 comprises a plurality of static contacts 3.1, 3.2, 3.3, 3.4 and 3.5 (the number of the static contacts is determined according to the actual voltage regulating gear number, 5 voltage regulating gears correspond to 5 static contacts shown in figures 1-3), a static contact integrated base 3.6, a plurality of static contacts 3.1-3.5 are installed and fixed on the static contact integrated base 3.6, and the static contact integrated base 3.6 is connected with the insulating support 4 through fixing studs 5.1 and 5.2.
The static contact integrated base 3.6 is provided with a plurality of protrusions 3.6.1-3.6.8, the protrusions 3.6.1-3.6.8 are arranged on the upper side and the lower side of the static contact integrated base 3.6 and are positioned outside the gap of the static contacts 3.1-3.5, the plane of the protrusions 3.6.1-3.6.4 on the upper side of the static contact integrated base 3.6 of the protrusions 3.6.1-3.6.8 is higher than the upper plane of the static contacts 3.1-3.5, and the plane of the protrusions on the lower side of the static contact integrated base 3.6 is lower than the lower plane of the static contacts 3.1-3.5. In order to reduce the transverse distance of the selective switch assembly and miniaturize the selective switch assembly, the distance between the static contacts 3.1-3.5 in the selective switch assembly is set to be smaller than the transverse width of the movable contacts 2.1 and 2.2, so the protrusions 3.6.1-3.6.8 are arranged to prevent the two adjacent static contacts 3.1-3.5 from being short-circuited when the movable contacts 2.1 and 2.2 carry out voltage-regulating and gear-shifting selection. Certainly, the distance between the fixed contacts needs to be increased without arranging the protrusion, and the volume of the selection switch assembly is increased.
Referring to fig. 1-3, fig. 3 shows a schematic diagram of the connection of the selector switch assembly to the tap of the transformer high voltage coil regulating winding. Components in the driving mechanism of the on-load tap changer are connected or contacted with a groove 2.3.1 on a moving contact base 2.3, the moving contact base 2.3 is driven to move on copper guide rods 1.1 and 1.2, the moving contact base 2.3 drives moving contacts 2.1 and 2.2 (A1 and A2 in the graph of figure 3) to move on the copper guide rods 1.1 and 1.2 respectively, the moving contacts 2.1 and 2.2 select corresponding static contacts 3.1-3.5 to be electrically connected, contact studs 3.11, 3.21, 3.31, 3.41 and 3.51 (1, 2, 3, 4 and 5 in the graph of figure 3) on the static contacts 3.1-3.5 are connected with a tap of a high-voltage coil of a transformer, the position of the tap of the high-voltage coil is changed through selection of a corresponding gear, and selection of the gear of the tap of the on-load tap changer is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of changes and improvements can be made without departing from the technical principle of the present invention, and these changes and improvements should also be considered as the protection scope of the present invention.
Claims (4)
1. A miniaturized selective switch component for an on-load voltage regulation switch is characterized by comprising two copper guide rods, a moving contact component, a static contact component and an insulating bracket;
the moving contact component comprises two moving contacts and a moving contact seat, and the two moving contacts are fixedly arranged on the moving contact seat;
the copper guide rod is fixedly arranged on the insulating bracket;
the copper guide rod is conductive and guiding, the moving contact is electrically connected with the copper guide rod, the moving contact component moves linearly on the copper guide rod, and the copper guide rod is electrically connected with other components of the on-load voltage regulating switch;
the static contact assembly comprises a plurality of static contacts and a static contact integrated base which are linearly arranged, the static contacts are fixedly arranged on the static contact integrated base, and the static contact integrated base is connected with the insulating support through a fixing stud;
the moving contact component moves on the copper guide rod under the driving of the on-load voltage regulating switch driving mechanism, and the moving contact selects the corresponding fixed contact to be electrically connected, so that the selection of a voltage regulating gear is realized.
2. The miniaturized selective switch assembly for an on-load tap changer of claim 1, wherein the contact studs on the stationary contact are connected with corresponding tap taps of a high-voltage coil of a transformer.
3. The miniaturized selective switch component for the on-load tap changer of claim 1, wherein protrusions are arranged on the upper side and the lower side of the integrated static contact seat, the protrusions are located on the outer side of a gap between the static contacts, the plane of the protrusions on the upper side of the integrated static contact seat is higher than the upper plane of the static contacts, and the height of the plane of the protrusions on the lower side of the integrated static contact seat is lower than the lower plane of the static contacts.
4. The miniaturized selective switch assembly for the on-load tap changer of claim 1, wherein a groove is formed above the movable contact base, a driving mechanism of the on-load tap changer is connected or contacted with the movable contact base through the groove and drives the movable contact base to move, and the movable contact base drives the movable contact to move on the copper guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689078.7U CN210052658U (en) | 2019-05-15 | 2019-05-15 | A miniaturized option switch subassembly for on-load tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689078.7U CN210052658U (en) | 2019-05-15 | 2019-05-15 | A miniaturized option switch subassembly for on-load tap changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210052658U true CN210052658U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920689078.7U Active CN210052658U (en) | 2019-05-15 | 2019-05-15 | A miniaturized option switch subassembly for on-load tap changer |
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| Country | Link |
|---|---|
| CN (1) | CN210052658U (en) |
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2019
- 2019-05-15 CN CN201920689078.7U patent/CN210052658U/en active Active
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