CN214672186U - Non-excitation tap switch and three-dimensional wound core transformer - Google Patents
Non-excitation tap switch and three-dimensional wound core transformer Download PDFInfo
- Publication number
- CN214672186U CN214672186U CN202120720574.1U CN202120720574U CN214672186U CN 214672186 U CN214672186 U CN 214672186U CN 202120720574 U CN202120720574 U CN 202120720574U CN 214672186 U CN214672186 U CN 214672186U
- Authority
- CN
- China
- Prior art keywords
- support section
- tapping
- static contact
- contact group
- tap changer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an off-circuit tapping switch and three-dimensional iron core transformer of rolling up. Wherein, no excitation tapping switch is applied to three-dimensional wound core transformer, and this no excitation tapping switch includes: the support comprises a first support section and a second support section, the length of the second support section is greater than that of the first support section, a preset included angle is formed between the first support section and the second support section, and the preset included angle is greater than 90 degrees and smaller than 180 degrees; the connecting rods comprise first connecting rods corresponding to the first support sections and second connecting rods corresponding to the second support sections, and the connecting rods are matched with the supports in shape; the tapping assemblies are connected with the connecting rods and correspond to the static contact groups one by one; the drive assembly, drive assembly and a plurality of tapping subassembly linkage, drive assembly are used for moving the tapping subassembly. By using the excitation-free tap changer, the lead arrangement of the transformer can be simplified, and the space utilization rate of the transformer is improved.
Description
Technical Field
The utility model relates to a power equipment field, in particular to non-excitation tapping switch and three-dimensional transformer of rolling up unshakable in one's determination.
Background
The three-dimensional wound core transformer has the advantages of excellent performance, reasonable structure, small radiation, low noise and the like, and is widely applied to various electric power equipment in daily life of people. At present, a tap switch commonly used in a three-dimensional wound core transformer is an off-circuit tap switch, but the existing bar-type off-circuit tap switch and the existing disc-type off-circuit tap switch have partial limitations when in use, so that lead wires of the transformer are complex in arrangement and low in space utilization rate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an excitation-free tapping switch and three-dimensional iron core transformer of rolling up can simplify the lead wire of transformer and arrange, improves the space utilization of transformer.
In a first aspect, an embodiment of the present invention provides an excitation-free tap changer, which is applied to a three-dimensional wound core transformer, and is characterized in that the excitation-free tap changer includes: the support comprises a first support section and a second support section, the length of the second support section is greater than that of the first support section, a preset included angle is formed between the first support section and the second support section, and the preset included angle is greater than 90 degrees and smaller than 180 degrees; the connecting rods comprise first connecting rods corresponding to the first support sections and second connecting rods corresponding to the second support sections, and the connecting rods are matched with the supports in shape; the tapping assemblies are connected with the connecting rods and correspond to the static contact groups one by one; the drive assembly is linked with the plurality of tapping assemblies, and the drive assembly is used for moving the tapping assemblies.
According to some embodiments of the first aspect of the present invention, the predetermined included angle is 120 °.
According to the utility model discloses some embodiments of the first aspect, the shunting subassembly is provided with the moving contact, static contact group includes a plurality of static contacts, the moving contact is used for the electricity to connect adjacent two the static contact.
According to some embodiments of the first aspect of the present disclosure, the tapping assembly is a clamping piece, the clamping piece is fixedly connected to the connecting rod, and the driving assembly controls the connecting rod to move so as to drive the clamping piece to move relative to the bracket.
According to some embodiments of the first aspect of the present invention, the driving assembly is a driving gear, the connecting rod is provided with a rack moving frame, and a rack of the rack moving frame is engaged with the driving gear.
According to some embodiments of the first aspect of the present invention, the number of stationary contact groups of the first carrier section accounts for all one third of the number of stationary contact groups, the number of stationary contact groups of the second carrier section accounts for all two thirds of the number of stationary contact groups.
According to some embodiments of the first aspect of the present invention, the bracket is further provided with a fixing plate, and the fixing plate is used for fixing the off-circuit tap changer and the three-dimensional wound core transformer.
According to some embodiments of the first aspect of the present invention, the bracket and the connecting rod are made of an insulating material.
In a second aspect, an embodiment of the present invention provides a three-dimensional wound core transformer, which includes an off-circuit tap changer implementing any one of the embodiments of the first aspect.
According to some embodiments of the second aspect of the present invention, the three-dimensional wound core transformer includes a three-phase coil, and the off-circuit tap changer includes a first stationary contact group, a second stationary contact group, and a third stationary contact group, the first stationary contact group being disposed at the first bracket section, and the second stationary contact group and the third stationary contact group being disposed at the second bracket section; and the terminals of the two-phase coil are positioned above the second static contact group and the third static contact group, and the terminal of the other phase lead is positioned above the first static contact group.
One or more technical schemes provided in the embodiment of the application have at least the following beneficial effects: the utility model discloses an excitation-free tapping switch is applied to three-dimensional wound core transformer, excitation-free tapping switch includes: the device comprises a bracket, a connecting rod, a plurality of tapping assemblies and a driving assembly. Wherein, the support includes first support section and second support section and the length of second support section is greater than the length of first support section, and the connecting rod includes the first connecting rod that corresponds with first support section and the second connecting rod that corresponds with the second support section. Because the first support section and the second support section have a preset included angle which is larger than 90 degrees and smaller than 180 degrees, and the shape of the connecting rod is matched with that of the support, the off-circuit tap-changer is in a nearly L-shaped structure, and the off-circuit tap-changer is matched with the assembling structure of the three-dimensional wound core transformer. Meanwhile, the driving assembly can move the tapping assembly to be electrically connected with the static contact group arranged on the support, so that the arrangement of the transformer leads under the assembly structure is simpler, and the space utilization rate of the transformer is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an off-circuit tap changer according to an embodiment of the first aspect of the present invention;
fig. 2 is a schematic view illustrating an assembly effect of the three-dimensional wound core transformer according to an embodiment of the first aspect of the present invention.
Reference numerals:
a first carrier section 110; a second stent segment 120; a fixing plate 130;
a first connecting rod 210; a second connecting rod 220;
a first set of stationary contacts 310; a second set of stationary contacts 320; a third set of stationary contacts 330;
a tap assembly 400;
the assembly 500 is driven.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless explicitly defined otherwise, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of the technical solutions.
In the description of embodiments of the present disclosure, reference to the description of the terms "one embodiment/implementation," "another embodiment/implementation," or "some embodiments/implementations," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least two embodiments or implementations of the disclosure, and the schematic representations of the terms above do not necessarily refer to the same example embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
The embodiments of the present invention will be further explained with reference to the drawings.
In a first aspect, referring to fig. 1, an embodiment of the present invention provides an off-circuit tap changer for a three-dimensional wound core transformer, where the off-circuit tap changer specifically includes, but is not limited to, a bracket, a connecting rod, a plurality of tap assemblies 400, and a driving assembly 500.
Specifically, the bracket is provided with a plurality of static contact groups at intervals, the bracket comprises a first bracket section 110 and a second bracket section 120, the length of the second bracket section 120 is greater than that of the first bracket section 110, a preset included angle is formed between the first bracket section 110 and the second bracket section 120, and the preset included angle is greater than 90 degrees and smaller than 180 degrees; the connecting rods include a first connecting rod 210 corresponding to the first bracket section 110 and a second connecting rod 220 corresponding to the second bracket section 120, the connecting rods match the shape of the bracket; the tapping component 400 is connected with the connecting rod, and the tapping component 400 corresponds to the static contact group one by one; a drive assembly 500 is coupled to the plurality of tap assemblies 400, the drive assembly 500 being used to move the tap assemblies 400.
It can be understood that, because the preset included angle between the first bracket section 110 and the second bracket section 120 is greater than 90 ° and less than 180 °, and the shape of the connecting rod is matched with that of the bracket, the off-circuit tap-changer is in a nearly L-shaped structure, so that the assembly structure of the off-circuit tap-changer and the three-dimensional wound core transformer is more matched. Meanwhile, the driving assembly 500 can move the tapping assembly 400 to be electrically connected with the static contact set arranged on the bracket, so that the arrangement of the transformer leads under the assembly structure is simpler, and the space utilization rate of the transformer is improved.
It can be understood that, as shown in fig. 1, the preset included angle is an included angle between the first stent section 110 and the second stent section 120, that is, the preset included angle is ≈ α in fig. 1.
It should be noted that the preset included angle may be any angle between more than 90 ° and less than 180 °, such as 90 °, 120 °, 150 °, 180 °, and the like, and the embodiment does not limit the preset included angle.
Illustratively, as shown in FIG. 1, the predetermined included angle is 120. It can be understood that, when the off-circuit tap changer is applied to the three-dimensional wound core transformer, because the cross section of the three-dimensional wound core forms an equilateral triangle to make the included angle between the adjacent side yokes be 120 degrees, the preset included angle is set to be 120 degrees, the shape of the three-dimensional wound core can be better adapted, so that the assembly with the three-dimensional wound core transformer can be better realized, the lead arrangement is simpler, and the space utilization rate of the transformer is improved.
Illustratively, the tapping assembly 400 is provided with a movable contact, and the stationary contact group includes a plurality of stationary contacts, and the movable contact is used for electrically connecting two adjacent stationary contacts. Specifically, the stationary contact group is used for connecting a terminal of a phase coil of the transformer, and then two adjacent stationary contacts in the same stationary contact group for realizing electrical connection are selected through the moving contact on the tapping component 400, so that the number of conductive turns of the phase coil is changed, and the purpose of adjusting voltage is realized.
Referring to fig. 1, the tapping assembly 400 is illustratively a clip fixedly connected to a connecting rod, and the driving assembly 500 controls the connecting rod to move so as to drive the clip to move relative to the bracket. Specifically, when the driving assembly 500 controls the connecting rod to move, the clamping piece moves under the driving of the connecting rod, so as to realize the electrical connection of two different adjacent static contacts, and adjust the number of conductive turns of the coil.
Illustratively, as shown in fig. 1, the driving assembly 500 is a driving gear, and the connecting rod is provided with a rack moving frame, and a rack of the rack moving frame is engaged with the driving gear. Specifically, the driving gear moves on the rack moving frame, so as to drive the tapping assembly 400 to move, and thus, the two different adjacent static contacts are electrically connected.
It should be noted that the manner in which the driving component controls the tapping assembly 400 to move may also be a slide rail, a numerical control, and the like, and this embodiment does not limit this.
Referring to fig. 1 and 2, the number of the stationary contact groups of the first carrier section 110 is, for example, one third of the number of all the stationary contact groups, and the number of the stationary contact groups of the second carrier section 120 is, for example, two thirds of the number of all the stationary contact groups.
It can be understood that, when the off-circuit tap changer is applied to the three-dimensional wound core transformer, the static contact groups with one-third quantity are arranged on the first bracket section 110, and the static contact groups with two-thirds quantity are arranged on the second bracket section 120, so that the structure of the three-dimensional wound core transformer can be better adapted, the lead arrangement of the transformer is simplified, and the space utilization rate of the transformer is improved.
Illustratively, as shown in fig. 1, the bracket is further provided with a fixing plate 130, and the fixing plate 130 is used for fixing the non-excited tap changer and the three-dimensional wound core transformer. It can be understood that the fixing plate 130 is arranged on the bracket, so that the non-excited tap changer and the three-dimensional wound core transformer can be better fixed, switch faults caused by scattering in the use process are avoided, and the use convenience of the non-excited tap changer is improved.
Illustratively, the brackets and connecting rods are pieces of insulating material. It will be appreciated that the use of insulating material to form the bracket and the connecting rod can improve the accuracy of the electrical conductivity of the tap assembly 400 to the set of stationary contacts, thereby better achieving the effect of regulating the voltage of the transformer.
In a second aspect, referring to fig. 2, an embodiment of the present invention further provides a three-dimensional wound core transformer, which includes the off-circuit tap changer in any one of the embodiments of the first aspect.
It can be understood that, because the utility model discloses the three-dimensional iron core transformer of rolling up of second aspect embodiment is including the off-circuit tap-changer in the arbitrary one of above-mentioned first aspect embodiment, consequently, the utility model discloses the concrete implementation and the technological effect of the three-dimensional iron core transformer of rolling up of second aspect embodiment can refer to the concrete implementation and the technological effect of the off-circuit tap-changer of the arbitrary one of above-mentioned first aspect embodiment, no longer describe herein.
Illustratively, as shown in fig. 2, the three-dimensional wound core transformer includes a three-phase coil, and the non-excited tap switch includes a first stationary contact group 310, a second stationary contact group 320, and a third stationary contact group 330, where the first stationary contact group 310 is disposed in the first carrier section 110, and the second stationary contact group 320 and the third stationary contact group 330 are disposed in the second carrier section 120; the terminals of the two-phase coil are located above the second stationary contact group 320 and the third stationary contact group 330, and the terminal of the other phase lead is located above the first stationary contact group 310.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.
Claims (10)
1. An off-circuit tap changer applied to a three-dimensional wound core transformer is characterized by comprising:
the support comprises a first support section and a second support section, the length of the second support section is greater than that of the first support section, a preset included angle is formed between the first support section and the second support section, and the preset included angle is greater than 90 degrees and smaller than 180 degrees;
the connecting rods comprise first connecting rods corresponding to the first support sections and second connecting rods corresponding to the second support sections, and the connecting rods are matched with the supports in shape;
the tapping assemblies are connected with the connecting rods and correspond to the static contact groups one by one;
the drive assembly is linked with the plurality of tapping assemblies, and the drive assembly is used for moving the tapping assemblies.
2. The off-circuit tap changer of claim 1, wherein: the preset included angle is 120 degrees.
3. The off-circuit tap changer of claim 1, wherein: the tapping component is provided with a moving contact, the static contact group comprises a plurality of static contacts, and the moving contact is used for electrically connecting two adjacent static contacts.
4. The off-circuit tap changer of claim 3, wherein: the tapping component is a clamping piece which is fixedly connected with the connecting rod, and the driving component controls the connecting rod to move so as to drive the clamping piece to move relative to the bracket.
5. The off-circuit tap changer of claim 1, wherein: the driving assembly is a driving gear, the connecting rod is provided with a rack moving frame, and a rack of the rack moving frame is meshed with the driving gear.
6. The off-circuit tap changer of claim 1, wherein: the number of the stationary contact groups of the first support section accounts for one third of the number of all the stationary contact groups, and the number of the stationary contact groups of the second support section accounts for two thirds of the number of all the stationary contact groups.
7. The off-circuit tap changer of claim 1, wherein: the bracket is further provided with a fixing plate, and the fixing plate is used for fixing the non-excitation tapping switch and the three-dimensional wound core transformer.
8. The off-circuit tap changer of claim 1, wherein: the bracket and the connecting rod are made of insulating materials.
9. A three-dimensional wound core transformer is characterized in that: comprising an off-circuit tap changer according to any of claims 1 to 8.
10. The stereoscopic wound core transformer of claim 9, wherein: the three-dimensional wound core transformer comprises a three-phase coil, the non-excitation tap switch comprises a first static contact group, a second static contact group and a third static contact group, the first static contact group is arranged on the first support section, and the second static contact group and the third static contact group are arranged on the second support section; and the terminals of the two-phase coil are positioned above the second static contact group and the third static contact group, and the terminal of the other phase lead is positioned above the first static contact group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120720574.1U CN214672186U (en) | 2021-04-09 | 2021-04-09 | Non-excitation tap switch and three-dimensional wound core transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120720574.1U CN214672186U (en) | 2021-04-09 | 2021-04-09 | Non-excitation tap switch and three-dimensional wound core transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214672186U true CN214672186U (en) | 2021-11-09 |
Family
ID=78460588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120720574.1U Active CN214672186U (en) | 2021-04-09 | 2021-04-09 | Non-excitation tap switch and three-dimensional wound core transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214672186U (en) |
-
2021
- 2021-04-09 CN CN202120720574.1U patent/CN214672186U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103069516B (en) | On load tap changer | |
| US20020036557A1 (en) | Electromagnetic relay | |
| JP2005071946A (en) | Electromagnetic relay | |
| CN214672186U (en) | Non-excitation tap switch and three-dimensional wound core transformer | |
| CN102956375B (en) | There is when there is high electric current the power contacts device of electric compensating | |
| CN107918038B (en) | Switch type phase sequence switching combined junction box | |
| CN201522973U (en) | Double-layer three-phase magnetic latching relay | |
| US20230298829A1 (en) | Switching module, and on-load tap changer comprising a switching module | |
| CN115083835B (en) | Integrated magnetic latching relay | |
| CN208111306U (en) | A kind of novel voltage-regulating structure of load ratio bridging switch | |
| CN212462278U (en) | Wiring terminal with manganin shunt | |
| CN203799968U (en) | Multipole switch device | |
| JP4676663B2 (en) | Residential distribution board | |
| JP2001023836A (en) | Tap selector of load-time tap switcher | |
| CN217426627U (en) | Vacuum on-load tap-changer for three-dimensional wound core distribution transformer | |
| CN208819808U (en) | Small high-power relay | |
| CN208767227U (en) | Three-phase motor positive and negative rotation control contactor | |
| CN216084734U (en) | Intermediate relay with multiple rated voltages | |
| CN218918619U (en) | Dual-voltage transformer lead structure applicable to triple-voltage equal-division connection relationship | |
| CN102915888B (en) | Circuit arrangement and comprise the withdrawable circuit breaker of this circuit arrangement | |
| CN220065528U (en) | Midway switch structure, midway switch and bipolar switch | |
| CN216597435U (en) | Relay contact structure and electromagnetic relay | |
| CN214043539U (en) | Holding coil connecting structure and starter electromagnetic switch with same | |
| CN203070976U (en) | Electric vehicle main power switch | |
| CN215815730U (en) | Contact relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |