CN216250367U - High-power direct-current high-voltage isolation transformer - Google Patents
High-power direct-current high-voltage isolation transformer Download PDFInfo
- Publication number
- CN216250367U CN216250367U CN202122773274.2U CN202122773274U CN216250367U CN 216250367 U CN216250367 U CN 216250367U CN 202122773274 U CN202122773274 U CN 202122773274U CN 216250367 U CN216250367 U CN 216250367U
- Authority
- CN
- China
- Prior art keywords
- coil
- heat dissipation
- electric connection
- connection strip
- isolation transformer
- 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
Landscapes
- Transformer Cooling (AREA)
Abstract
The utility model discloses a high-power direct-current high-voltage isolation transformer, which comprises a segmented framework, wherein an iron core penetrates through the segmented framework, a coil group is arranged on the segmented framework, the coil group comprises a primary coil, a secondary coil and a feedback coil, the segmented framework is made of an insulator, shielding copper sheets are arranged between the primary coil and the secondary coil as well as between the primary coil and the feedback coil, a heat dissipation block is arranged outside the iron core, mounting brackets are arranged outside the two sides of the heat dissipation block, a main electric connecting strip and a secondary electric connecting strip are arranged on the two sides of the segmented framework, the main electric connecting strip is electrically connected with the primary coil, the secondary electric connecting strip is electrically connected with the secondary coil, a connecting column is arranged on the segmented framework, the connecting column is arranged above the main electric connecting strip and the secondary electric connecting strip and is respectively electrically connected with the main electric connecting strip and the secondary electric connecting strip, the mounting bracket is provided with a top plate.
Description
Technical Field
The utility model relates to the technical field of isolation transformers, in particular to a high-power direct-current high-voltage isolation transformer.
Background
The isolation transformer is a transformer with an input winding and an output winding electrically isolated, the isolation transformer is used for avoiding touching an electrified body accidentally, and the isolation of the transformer is used for isolating respective currents of the primary winding coil and the secondary winding coil. In the early days, the power supply is used in the electric power industry in European countries and is widely used for control power supplies, safety lighting and indicator lamps of general circuits in electronic industries or industrial and mining enterprises, machine tools and mechanical equipment. The input end of an isolation transformer is connected to a corresponding power supply (380V), the output end (380V) of the isolation transformer is connected to the power supply input end of equipment needing to be used, and the isolation transformer can be normally used when the power supply is closed.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides the high-power direct-current high-voltage isolation transformer which can effectively solve the problems in the background technology.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a high-power direct-current high-voltage isolation transformer comprises a segmented framework, wherein an iron core penetrates through the segmented framework, a coil group is arranged on the segmented framework and comprises a primary coil, a secondary coil and a feedback coil, the segmented framework is made of an insulator, shielding copper sheets are arranged between the primary coil and the secondary coil as well as between the primary coil and the feedback coil, a heat dissipation block is arranged outside the iron core, mounting brackets are arranged outside two sides of the heat dissipation block, a main electric connection strip and a secondary electric connection strip are arranged on two sides of the segmented framework, the main electric connection strip is electrically connected with the primary coil, the secondary electric connection strip is electrically connected with the secondary coil, a connecting column is arranged on the segmented framework and is arranged above the main electric connection strip and the secondary electric connection strip and is respectively electrically connected with the main electric connection strip and the secondary electric connection strip, the mounting support is provided with a top plate, and the top plate is provided with a cooling fan.
Preferably, a heat dissipation surface sheet is arranged outside the heat dissipation block, and heat dissipation paint is arranged on the heat dissipation surface sheet.
Preferably, the mounting bracket is provided with a mounting hole at the lower part.
Preferably, the coil assembly, the main electrical connecting strip and the secondary electrical connecting strip are wrapped by high-temperature insulating tapes.
Preferably, the iron core is formed by laminating silicon steel sheets.
Compared with the prior art, the utility model has the beneficial effects that:
although the primary winding and the secondary winding of the general transformer have the function of an isolation circuit, under the condition of higher frequency, the capacitance between the two windings still can cause electrostatic interference between the circuits at two sides, in order to avoid the interference, the high-power direct-current high-voltage isolation transformer is provided with a shielding piece between the windings to realize electrostatic shielding, and also shields the leading-out wire terminal of the winding to prevent other external electromagnetic interference, meanwhile, a radiating piece is arranged outside the radiating block, a radiating coating is arranged on the radiating piece, and a radiating fan is arranged, so that the high-power direct-current high-voltage isolation transformer can be timely radiated when the coil resistance generates heat during working, and the working efficiency of the transformer is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial schematic view of the present invention;
FIG. 3 is a schematic diagram of the circuit structure of the present invention;
reference numbers in the figures:
the heat dissipation structure comprises a 1-segmented framework, a 2-iron core, a 3-coil set, a 4-primary coil, a 5-secondary coil, a 6-feedback coil, a 7-heat dissipation block, an 8-mounting bracket, a 9-main electric connecting strip, a 10-secondary electric connecting strip, an 11-connecting column, a 12-heat dissipation sheet, a 13-top plate, a 14-mounting hole and a 15-heat dissipation fan.
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.
The isolation transformer for high power dc voltage of the present invention is described in detail with reference to fig. 1-3 below:
the utility model provides a high-power direct current high voltage's isolation transformer, includes segmentation skeleton 1, it has iron core 2 to run through in the segmentation skeleton 1, be provided with coil assembly 3 on the segmentation skeleton 1, coil assembly 3 includes primary coil 4, secondary 5 and feedback coil 6, segmentation skeleton 1 is made by the insulator, primary coil 4 with be provided with the shielding copper sheet between secondary 5 and the feedback coil 6, iron core 2 is provided with radiating block 7 outward, be provided with installing support 8 outside the radiating block 7 both sides, be provided with main electric connection strip 9 and inferior electric connection strip 10 on segmentation skeleton 1 both sides, main electric connection strip 9 and primary 4 electric connection, inferior electric connection strip 9 and secondary 5 electric connection, be equipped with spliced pole 11 on the segmentation skeleton 1, spliced pole 11 sets up in main electric connection strip 9 and inferior electric connection strip 10 top and respectively with main electric connection strip 10 and inferior electric connection strip 11 electric connection strip 10 electric connection And a top plate 13 is mounted and connected on the mounting bracket 8, and a heat radiation fan 15 is mounted in the top plate 13.
A heat dissipation face sheet 12 is arranged outside the heat dissipation block 7, and heat dissipation coating is arranged on the heat dissipation face sheet 12. And a mounting hole 14 is formed in the lower part of the mounting bracket 8. And high-temperature insulating adhesive tape packages are arranged outside the coil group 3, the main electric connecting strip 9 and the secondary electric connecting strip 10. The iron core 2 is formed by laminating silicon steel sheets.
The working principle is as follows: the high-efficiency isolated high-frequency transformer electrically insulates and isolates the primary winding and the secondary winding, improves the insulating property of the primary winding and the secondary winding, and realizes electrostatic shielding by arranging a copper sheet between the primary winding and the secondary winding, namely a shielding layer. The outgoing terminals of the winding (the primary and secondary electrical connection strips 9, 10) are also shielded to prevent other extraneous electromagnetic interference. This results in a coupling between the primary and secondary windings that is predominantly only remanent. Meanwhile, a heat dissipation block 7 is arranged outside the iron core 2, a heat dissipation sheet 12 is arranged outside the heat dissipation block 7, heat dissipation coating is arranged on the heat dissipation sheet 12, a heat dissipation fan 15 is arranged to improve heat dissipation capacity, heat brought by the transformer during operation is absorbed through heat conduction of the heat dissipation sheet 12, the heat is released to the atmosphere, air flowing speed on the transformer is promoted through the heat dissipation fan 15, an installation support 8 is added, an installation hole 14 is formed in the lower portion of the installation support 8, the transformer can be flexibly suitable for different scenes, and reliability can be improved by adding an insulator and a high-temperature insulating adhesive tape.
In summary, compared with the conventional technology: although the primary and secondary windings of a general transformer also have the function of an isolation circuit, under the condition of higher frequency, the capacitance between the two windings still causes electrostatic interference between circuits at two sides, in order to avoid the interference, the high-power direct-current high-voltage isolation transformer arranges a shielding part between the windings to realize electrostatic shielding, the leading-out wire terminal of the winding is also shielded to prevent other external electromagnetic interference, and the heat dissipation block 7 is externally provided with a heat dissipation web 12, the heat dissipation face sheet 12 is provided with heat dissipation coating, and a heat dissipation fan 15 is installed to improve heat dissipation capability, the heat generated during the operation of the transformer is absorbed by the heat conduction of the heat dissipation webs 12, and is released to the atmosphere, the high-power direct-current high-voltage isolation transformer can dissipate heat in time when heat is generated by the coil resistor during working, and the working efficiency of the transformer is improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a high-power direct current high voltage's isolation transformer which characterized in that: the transformer comprises a segmented framework, an iron core penetrates through the segmented framework, a coil set is arranged on the segmented framework, the coil set comprises a primary coil, a secondary coil and a feedback coil, the segmented framework is made of an insulator, shielding copper sheets are arranged between the primary coil and the secondary coil as well as between the primary coil and the feedback coil, a heat dissipation block is arranged outside the iron core, mounting brackets are arranged outside two sides of the heat dissipation block, a main electric connection strip and a secondary electric connection strip are arranged on two sides of the segmented framework, the main electric connection strip is electrically connected with the primary coil, the secondary electric connection strip is electrically connected with the secondary coil, a connecting column is arranged on the segmented framework, the connecting column is arranged above the main electric connection strip and the secondary electric connection strip and is respectively electrically connected with the main electric connection strip and the secondary electric connection strip, and a top plate is mounted on the mounting brackets, and a heat radiation fan is arranged in the top plate.
2. The isolation transformer for high power direct current and high voltage according to claim 1, wherein: and a heat dissipation surface sheet is arranged outside the heat dissipation block, and heat dissipation coating is arranged on the heat dissipation surface sheet.
3. The isolation transformer for high power direct current and high voltage according to claim 1, wherein: and a mounting hole is formed in the lower part of the mounting bracket.
4. The isolation transformer for high power direct current and high voltage according to claim 1, wherein: and high-temperature insulating adhesive tape wraps are arranged outside the coil group, the main electric connecting strip and the secondary electric connecting strip.
5. The isolation transformer for high power direct current and high voltage according to claim 1, wherein: the iron core is formed by laminating silicon steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773274.2U CN216250367U (en) | 2021-11-12 | 2021-11-12 | High-power direct-current high-voltage isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773274.2U CN216250367U (en) | 2021-11-12 | 2021-11-12 | High-power direct-current high-voltage isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250367U true CN216250367U (en) | 2022-04-08 |
Family
ID=80996129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122773274.2U Active CN216250367U (en) | 2021-11-12 | 2021-11-12 | High-power direct-current high-voltage isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216250367U (en) |
-
2021
- 2021-11-12 CN CN202122773274.2U patent/CN216250367U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guillod et al. | Electrical shielding of MV/MF transformers subjected to high dv/dt PWM voltages | |
| US10312801B2 (en) | High power density inverter (II) | |
| CN115398786A (en) | Power conversion device and air conditioner | |
| CN216250367U (en) | High-power direct-current high-voltage isolation transformer | |
| CN210516411U (en) | Damp-proof power transformer | |
| CN214203437U (en) | High efficiency isolation type high frequency transformer | |
| Josifović et al. | New double-sided SMT power inductor | |
| CN200959569Y (en) | Inverse-outputting filter | |
| WO2014178589A1 (en) | Magnetic energy transfer device and power supply unit | |
| US20230138281A1 (en) | Symmetric Air-core Planar Transformer with Partial Electromagnetic Interference Shielding | |
| CN221304432U (en) | Electronic transformer skeleton convenient to heat dissipation | |
| CN204720297U (en) | A kind of transformer framework structure | |
| CN220753184U (en) | Ultra-low inductance and high current integrated inductor | |
| CN219435682U (en) | High cost performance electromagnetic compatibility isolation transformer | |
| CN221861438U (en) | Transformer with interlayer insulation protection | |
| CN216623936U (en) | Electronic transformer | |
| CN112259329B (en) | Transformer core grounding lead structure | |
| CN217468172U (en) | Transformer, power conversion circuit and adapter | |
| CN219919614U (en) | Anti-interference control cabinet with reactor | |
| CN221101854U (en) | Horizontal transformer and reactor integrated device | |
| CN220439360U (en) | PCB planar transformer | |
| CN210805442U (en) | Fireproof and explosion-proof dry-type transformer structure | |
| CN214428462U (en) | Aviation power transformer with good heat dissipation performance | |
| CN210896937U (en) | ESP high-frequency transformer oil tank input end device | |
| CN221928901U (en) | Combined bus duct for power distribution cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |