CN202816628U - High-frequency insulation power transformer - Google Patents
High-frequency insulation power transformer Download PDFInfo
- Publication number
- CN202816628U CN202816628U CN 201220495914 CN201220495914U CN202816628U CN 202816628 U CN202816628 U CN 202816628U CN 201220495914 CN201220495914 CN 201220495914 CN 201220495914 U CN201220495914 U CN 201220495914U CN 202816628 U CN202816628 U CN 202816628U
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- pressure side
- low
- iron core
- soft magnetic
- power transformer
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- Expired - Fee Related
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Abstract
The utility model relates to high-voltage measuring or relaying protection equipment of a power system, in particular to a high-frequency insulation power transformer. A low-voltage side winding group is arranged on a soft magnetic ferrite iron core in a winding mode and is connected with a low-voltage wire side connection terminal. A high-voltage side winding group is arranged on a frame in a winding mode and is installed on an edge column of the soft magnetic ferrite iron core in a sleeved mode. The high-voltage side winding group is connected with a high-voltage wire side connection terminal. The soft magnetic ferrite iron core, the high-voltage side winding group, the low-voltage side winding group, the high-voltage wire side connection terminal and the low-voltage wire side connection terminal are poured to form an integral structure by epoxy resin. A cuboid structure in the middle of the integral structure is a main insulator. A high-voltage side terminal box and a low-voltage side terminal box are respectively arranged at the upper end of the integral structure and the lower end of the integral structure. The high-frequency insulation power transformer has the advantages of being small in size, flexible in installation, reasonable in structure, achievable in convenient wire connection, stable in power, low in loss, reliable in insulation and free of maintenance.
Description
Technical field
The utility model relates to electric power system high-tension measurement or relay protection device, specifically a kind of high-frequency isolation power transformer.
Background technology
The high-frequency isolation power transformer is the capital equipment of Switching Power Supply in the electric power system, utilize the device such as bridge cowling panel, inversion plate of switch, pass through control circuit, electronic switching device is ceaselessly turned on and off, thereby realize AC/DC, DC-DC voltage transformation, and output voltage can be in harmonious proportion the function of automatic voltage regulation.Existing Switching Power Supply is comparatively cumbersome, power transformer is semiclosed form, its primary and secondary coil directly is wound on the iron core, mainly utilize the insulation such as air and insulating paper, and the switching devices such as other bridge cowling panel, inversion plate adopt absolute construction to link to each other with power supply power transformation depressor, structural volume is larger, and more complicated is installed; In the long-term use procedure, relate to high pressure isolation and high-frequency circuit occasion, the power transformer insulation is relatively weaker place, obviously reduces every the useful life of high power supply, thereby affects the safe operation of integral device.Therefore as the capital equipment in the Switching Power Supply, in order further to improve Switching Power Supply designing quality level, need to provide especially a kind of special isolation reliable high-frequency isolation power transformer.
The utility model content
Have the problems such as volume is large, structure is cumbersome, insulation is unreliable, useful life is low in order to solve switch power supply equipment, the utility model provides a kind of, easy-to-connect little, flexible for installation, rational in infrastructure for the volume that adopts the epoxide resin vacuum cast to form, power stability, loss is low, insulation is reliable, non-maintaining a kind of high-frequency isolation power transformer.
The technical scheme that the utility model adopts for achieving the above object is: a kind of high-frequency isolation power transformer, the low-pressure side winding technique is on the soft magnetic ferrite iron core and connect the low-pressure side binding post, the high-pressure side winding technique is on the skeleton and be sleeved on the side column of soft magnetic ferrite iron core, the high-pressure side winding connects the high-pressure side binding post, the soft magnetic ferrite iron core, the high-pressure side winding, the low-pressure side winding, high-pressure side binding post and low-pressure side binding post are the integral type structure by poured with epoxy resin, rectangular structure in the middle of the integral structure is the main insulation body, and the top and bottom of integral structure are respectively equipped with high-pressure side terminal board and low-pressure side terminal board.
Described soft magnetic ferrite iron core is that two Π shape iron cores combine, side post coiling low-pressure side winding.
Described high-pressure side winding technique is on quadrate framework, and the coil end face is square, is sleeved on the upper side column of soft magnetic ferrite iron core.
Described high-pressure side terminal board and low-pressure side terminal board are the trench structure that inner chamber is cuboid.
The external side of described main insulation is provided with the insulation full skirt that the interval equates.
The outer transverse plane place of described high-pressure side terminal board and low-pressure side terminal board is embedded respectively four embedded nuts.
The utlity model has following advantage and beneficial effect:
1, volume is little, flexible for installation: whole employing poured with epoxy resin is the integral type structure, the high-pressure side terminal board is used for that the cowling panel device is installed and the low-pressure side terminal board makes overall structure less for the design of installing every current inversion plate device, the transverse plane place is embedded respectively four embedded nuts, and product is installed more flexible;
2, rational in infrastructure, easy-to-connect: this Realization of Product power transformer and cowling panel and isolation current inversion plate integral type press assembling structure, convenient with the wiring of other circuit devcie of switch;
3, power stability, loss are low: the soft magnetic ferrite core material of this product is Mn-Zn soft magnetic ferrite, have higher saturation flux density and lower residual flux density, satisfy the high frequency characteristics needs, good iron core performance guarantee product power stage is very stable, and power loss is very low;
4, insulation is reliable, non-maintaining: the high-pressure side winding is sleeved on the upper side column of soft magnetic ferrite iron core, and insulation distance more rationally evenly between the iron core, and has a reliable dielectric strength, be provided with the insulation full skirt that the interval equates from top to bottom, effectively strengthen surface creepage distance between high-pressure side terminal and the low-pressure side, improve the insulation level of product, but the product long-time running is non-maintaining.
Description of drawings
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure end view;
Fig. 3 is the utility model internal structure schematic diagram.
Among the figure: 1, soft magnetic ferrite iron core; 2, high-pressure side winding; 3, low-pressure side winding; 4, high-pressure side terminal board; 5, low-pressure side terminal board; 6, main insulation body; 7, insulation full skirt; 8, embedded nut; 9, high-pressure side binding post; 10, low-pressure side binding post.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As Figure 1-3, low-pressure side winding 3 evenly is wound on the soft magnetic ferrite iron core 1 side post, and high-pressure side winding 2 is wound on the quadrate framework, and the coil end face is square, is sleeved on the upper side column of soft magnetic ferrite iron core 1.Then adopt special stand up and down two soft magnetic ferrite iron core group be integral, insulate again and the wrapping of padded coaming, thereby forming one has high-pressure side binding post 9, low-pressure side binding post 10 coil device bodies; Coil device body changes in the mould, the employing supports such as the high-pressure side winding adopts high-pressure side binding post and mould to fix, low-voltage side coil and mould are fixed, and connect the inserts of low-voltage wiring terminal again, adjust insulation distance, adopt the epoxide resin vacuum cast cured explosive to form integral structure; It is the cuboid trench structure that high-pressure side terminal board 4 is inner chamber with low-pressure side terminal board 5, is located at respectively the upper and lower side of integral structure, and wherein high-pressure side terminal board 4 is used for installing the cowling panel device, and low-pressure side terminal board 5 is used for installing isolation current inversion plate device; Inner soft magnetic ferrite iron core 1 is that two Π shape iron cores combine, interface leaves suitable air gap, improve the saturation flux density of product and the problem of solution D.C. magnetic biasing, core material is Mn-Zn soft magnetic ferrite, have higher saturation flux density and lower residual flux density, satisfy the high frequency characteristics needs; High-pressure side winding 2 is wound on the quadrate framework, and the coil end face is square, is sleeved on the upper side column of soft magnetic ferrite iron core 1, makes between high-pressure side coil and the iron core insulation distance more rationally evenly, and has reliable dielectric strength; Low-pressure side winding 3 directly on the side post of soft magnetic ferrite iron core 1, effectively utilizes the core interior space to increase the insulation of high-pressure side winding, and is conducive to reduce leakage inductance generation and increasing heat radiation area; Main insulation body 6 integral body are rectangular structure, are provided with the insulation full skirt 7 that the interval equates from top to bottom, effectively strengthen surface creepage distance between high-pressure side terminal and the low-pressure side, improve the insulation level of product; High-pressure side terminal board 4 is embedded respectively four embedded nuts 8 with the outer transverse plane place of low-pressure side terminal board 5, is mainly used in installing and fixing of integrated transformers and integral device.
When product is installed and used, should be in advance cowling panel and isolation current inversion plate be installed in the terminal board of the high-pressure side of product and low-pressure side, send laboratory's check single unit system whether to meet designing requirement, can drop into after qualified and install and use.
Claims (6)
1. high-frequency isolation power transformer, low-pressure side winding (3) is wound on the upper and connection low-pressure side binding post (10) of soft magnetic ferrite iron core (1), high-pressure side winding (2) is wound on the skeleton and is sleeved on the side column of soft magnetic ferrite iron core (1), high-pressure side winding (2) connects high-pressure side binding post (9), it is characterized in that, soft magnetic ferrite iron core (1), high-pressure side winding (2), low-pressure side winding (3), high-pressure side binding post (9) and low-pressure side binding post (10) are the integral type structure by poured with epoxy resin, rectangular structure in the middle of the integral structure is main insulation body (6), and the top and bottom of integral structure are respectively equipped with high-pressure side terminal board (4) and low-pressure side terminal board (5).
2. high-frequency isolation power transformer according to claim 1 is characterized in that, described soft magnetic ferrite iron core (1) is that two Π shape iron cores combine side post coiling low-pressure side winding (3).
3. high-frequency isolation power transformer according to claim 1 and 2 is characterized in that, described high-pressure side winding (2) is wound on the quadrate framework, and the coil end face is square, is sleeved on the upper side column of soft magnetic ferrite iron core (1).
4. high-frequency isolation power transformer according to claim 1 is characterized in that, described high-pressure side terminal board (4) and low-pressure side terminal board (5) are the trench structure that inner chamber is cuboid.
5. high-frequency isolation power transformer according to claim 1 is characterized in that, described main insulation body (6) outside is provided with the insulation full skirt (7) that the interval equates.
6. high-frequency isolation power transformer according to claim 1 is characterized in that, described high-pressure side terminal board (4) is embedded respectively four embedded nuts (8) with the outer transverse plane place of low-pressure side terminal board (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495914 CN202816628U (en) | 2012-09-26 | 2012-09-26 | High-frequency insulation power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495914 CN202816628U (en) | 2012-09-26 | 2012-09-26 | High-frequency insulation power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816628U true CN202816628U (en) | 2013-03-20 |
Family
ID=47875473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220495914 Expired - Fee Related CN202816628U (en) | 2012-09-26 | 2012-09-26 | High-frequency insulation power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104234A (en) * | 2013-04-07 | 2014-10-15 | 华云逸力(北京)光纤传感技术有限公司 | Secondary power supply technology under high-voltage environment based on electromagnetic theory |
| CN109448965A (en) * | 2018-12-17 | 2019-03-08 | 上海意兰可电力电子设备有限公司 | High frequency high voltage transformer |
-
2012
- 2012-09-26 CN CN 201220495914 patent/CN202816628U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104234A (en) * | 2013-04-07 | 2014-10-15 | 华云逸力(北京)光纤传感技术有限公司 | Secondary power supply technology under high-voltage environment based on electromagnetic theory |
| CN109448965A (en) * | 2018-12-17 | 2019-03-08 | 上海意兰可电力电子设备有限公司 | High frequency high voltage transformer |
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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: 20130320 Termination date: 20200926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |