CN201138602Y - Transformer with high isolation breakdown voltage - Google Patents
Transformer with high isolation breakdown voltage Download PDFInfo
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- CN201138602Y CN201138602Y CNU2007200556906U CN200720055690U CN201138602Y CN 201138602 Y CN201138602 Y CN 201138602Y CN U2007200556906 U CNU2007200556906 U CN U2007200556906U CN 200720055690 U CN200720055690 U CN 200720055690U CN 201138602 Y CN201138602 Y CN 201138602Y
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Abstract
The utility model relates to a high isolating pressure-proof transformer which includes a primary winding and educing line (1), a secondary winding and educing line (2) as well as an iron core (3); the high isolating pressure-proof transformer is characterized in that an insulating isolating layer (4) is arranged between the primary winding and educing line (1) and the secondary winding and educing line (2); the insulating isolating layer (4) is formed by epoxide resin by pouring and sealing or formed by isolating silica gel by pouring and sealing; the iron core 3 is grounded. The utility model can distinguish the high voltage drive powers of power and electric devices like a large power inverter from a low voltage control power, namely separating the high potential pressure part of a power unit from a control power voltage part which can realize to monitor the state and the control waveform of the power unit as well even if under the situation that no high voltage powers are inputted, can carry out detection monitoring on the whole system control part including the power unit, can realize to carry out checking and debugging on the waveform outputted by a power loop under the situation of a low voltage power and is greatly convenient for the maintaining and debugging work.
Description
Technical field
The utility model relates to the withstand voltage transformer of a kind of high isolation, is applicable to the power circuit of high-power inverter and Switching Power Supply constant power unit controls part, is a kind of transformer that is applied to the high-power electric and electronic product.Belong to electric and electronic technical field.
Background technology
Modular power cell is the important component part of high-power electric and electronic product, and this class power electronic product relates to electric power conversion products such as the rectification, inversion, frequency conversion of high pressure, high-power or high-power.The residing current potential of each power cell is a high pressure in control, requires each power cell that the earth, device housings etc. are needed suitable dielectric voltage withstand requirement according to the power equipment electrical insulation properties.
At present, used power cell control power supply on the market generally adopts power cell inside to be in the filter capacitor direct voltage of power main circuit of high potential as the power supply of control power transformer or Switching Power Supply.Be characterized in: adopt high potential inlet wire AC power as power supply, power supply and control circuit all are in hot end, need not high withstand voltage insulation request.But because power supply is from high voltage source; therefore have following shortcoming: causing only inserting high-tension electricity in system could debug the control section of power cell; like this system do not debug or break down shut down after; the detection that can not comprise the whole system control section of power cell monitors; can't be implemented under the low-tension supply situation loop of power circuit output waveform is checked, debugged; in case the control section of power cell goes wrong; just may cause equipment fault; needing increases debug time, even may cause device damage.Therefore, need a kind of height of high-power unit controls circuit that is applicable to of design to isolate withstand voltage low-voltage transformer.
The utility model content
The purpose of this utility model is in order to provide a kind of high isolation withstand voltage transformer, to be specially adapted to the power circuit of the power cell control section of power electronic equipments such as the big inverter of high pressure.
The purpose of this utility model can reach by following measure:
The withstand voltage transformer of a kind of high isolation, comprise winding and lead-out wire, secondary winding and lead-out wire and iron core, its design feature is: be provided with dielectric isolation layer between winding and lead-out wire and secondary winding and lead-out wire, dielectric isolation layer can water envelope by epoxy resin and form or the silica gel embedding of insulating forms iron core grounding.
The purpose of this utility model can also reach by following measure:
A kind of execution mode of the present utility model is: all right fixedly connected support mounting plate on the iron core is provided with several installing holes, iron core and support mounting plate plate earthing in this support mounting plate.
A kind of execution mode of the present utility model is: dielectric isolation layer can be arranged to tolerate the structure of 15～32kV voltage.
A kind of execution mode of the present utility model is: the permission input voltage of winding and lead-out wire can be≤380V alternating voltage, and the permission output voltage of secondary winding and lead-out wire can be≤40V alternating voltage.
The beneficial effects of the utility model are:
The utility model can come the high drive power supply and the low-voltage control power difference of power electronic equipments such as high power contravariant device; it is independent with control supply voltage part to be about to power cell high-potential voltage part; therefore; even under the situation that does not go up the high voltage source input; also can realize the Stateful Inspection and the control waveform of power cell are monitored; like this system do not debug or break down shut down after; the detection that can comprise the whole system control section of power cell monitors; can be implemented under the low-tension supply situation loop of power circuit output waveform is checked; debugging; maintain easily greatly and debugging work, have the application practical significance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Embodiment
Specific embodiment 1:
With reference to Fig. 1, present embodiment comprises winding and lead-out wire 1, secondary winding and lead-out wire 2, iron core 3 and support mounting plate 5, between winding and lead-out wire 1 and secondary winding and lead-out wire 2, be provided with dielectric isolation layer 4, dielectric isolation layer 4 can water envelope by epoxy resin and form or the silica gel embedding of insulating forms, iron core 3 ground connection.
In the present embodiment: fixedly connected with support mounting plate 5 on the iron core 3, be provided with several installing holes 51 in this support mounting plate 5; Dielectric isolation layer 4 can be arranged to tolerate the structure of 15～32kV voltage; The permission input voltage of winding and lead-out wire 1 can be≤380V alternating voltage, and the permission output voltage of secondary winding and lead-out wire 2 can be≤40V alternating voltage.
As Fig. 1 is a kind of design of the present utility model.As can be seen from Figure 1, support mounting plate 5 is installation cabinet, personal safety ground connection when working for guaranteed output unit high voltage source with the current potential of iron core (magnetic core) 3; For realizing low tension (can adopt power frequency civil power or other low pressure high frequency electric source) power supply debugging, the current potential of primary winding and lead-out wire 1 is not high yet; Secondary coil and lead-out wire 2 are the power cell power supply of high potential; Insulating material between primary winding, secondary coil need tolerate 15～32kV and above industrial frequency withstand voltage, can adopt epoxy resin to water envelope or the embedding of insulation silica gel, guarantees the insulation between secondary coil and lead-out wire 2 primary windings and the lead-out wire 1.
Above-mentioned design is one of design of present design; protection range of the present utility model is not limited thereto scheme; all are based on the utility model; on technical scheme, adopt high isolated variable power supply; once adopt electronegative potential, low-voltage input; once, between secondary high isolation withstand voltage, secondary winding works in high potential, unit controls power supply inside need not to adopt the variation of power conversion design transformation that high pressure (15kV～32kV and more than) isolates, layout, material etc. all within this protection range.
Claims (4)
1, the withstand voltage transformer of a kind of high isolation, comprise winding and lead-out wire (1), secondary winding and lead-out wire (2) and iron core (3), it is characterized in that: between winding and lead-out wire (1) and secondary winding and lead-out wire (2), be provided with dielectric isolation layer (4), dielectric isolation layer (4) waters envelope by epoxy resin and forms or the silica gel embedding of insulating forms, iron core (3) ground connection.
2, the withstand voltage transformer of a kind of high isolation according to claim 1 is characterized in that: iron core (3) is gone up fixedly connected support mounting plate (5), is provided with several installing holes (51) in this support mounting plate (5), iron core (3) and support mounting plate plate (5) ground connection.
3, the withstand voltage transformer of a kind of high isolation according to claim 1, it is characterized in that: dielectric isolation layer (4) is arranged to tolerate the structure of 15～32kV voltage.
4, the withstand voltage transformer of a kind of high isolation according to claim 1 is characterized in that: the permission input voltage of winding and lead-out wire (1) is≤380V alternating voltage, and the permission output voltage of secondary winding and lead-out wire (2) is≤the 40V alternating voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200556906U CN201138602Y (en) | 2007-08-17 | 2007-08-17 | Transformer with high isolation breakdown voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200556906U CN201138602Y (en) | 2007-08-17 | 2007-08-17 | Transformer with high isolation breakdown voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138602Y true CN201138602Y (en) | 2008-10-22 |
Family
ID=40039283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200556906U Expired - Fee Related CN201138602Y (en) | 2007-08-17 | 2007-08-17 | Transformer with high isolation breakdown voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138602Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366767A (en) * | 2018-12-25 | 2020-07-03 | 西安西电高压开关有限责任公司 | Direct current measuring device |
| CN111768960A (en) * | 2019-04-01 | 2020-10-13 | 台达电子企业管理（上海）有限公司 | Potting box and transformer |
| CN113303821A (en) * | 2021-06-07 | 2021-08-27 | 江苏康众数字医疗科技股份有限公司 | X-ray digital imaging system |
| US11610729B2 (en) | 2019-04-01 | 2023-03-21 | Delta Electronics (Shanghai) Co., Ltd | Transformer and assembling method thereof |
| US11610716B2 (en) | 2019-04-01 | 2023-03-21 | Delta Electronics (Shanghai) Co., Ltd | Transformer |
-
2007
- 2007-08-17 CN CNU2007200556906U patent/CN201138602Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366767A (en) * | 2018-12-25 | 2020-07-03 | 西安西电高压开关有限责任公司 | Direct current measuring device |
| CN111366767B (en) * | 2018-12-25 | 2022-11-25 | 西安西电高压开关有限责任公司 | Direct current measuring device |
| CN111768960A (en) * | 2019-04-01 | 2020-10-13 | 台达电子企业管理（上海）有限公司 | Potting box and transformer |
| CN111768960B (en) * | 2019-04-01 | 2022-02-18 | 台达电子企业管理（上海）有限公司 | Potting box and transformer |
| US11610729B2 (en) | 2019-04-01 | 2023-03-21 | Delta Electronics (Shanghai) Co., Ltd | Transformer and assembling method thereof |
| US11610717B2 (en) | 2019-04-01 | 2023-03-21 | Delta Electronics (Shanghai) Co., Ltd | Potting box and transformer |
| US11610716B2 (en) | 2019-04-01 | 2023-03-21 | Delta Electronics (Shanghai) Co., Ltd | Transformer |
| CN113303821A (en) * | 2021-06-07 | 2021-08-27 | 江苏康众数字医疗科技股份有限公司 | X-ray digital imaging system |
| WO2022257729A1 (en) * | 2021-06-07 | 2022-12-15 | 江苏康众数字医疗科技股份有限公司 | X-ray digital imaging system |
| CN113303821B (en) * | 2021-06-07 | 2023-05-12 | 江苏康众数字医疗科技股份有限公司 | X-ray digital imaging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |