CN209804414U - Transformer with high safety performance - Google Patents
Transformer with high safety performance Download PDFInfo
- Publication number
- CN209804414U CN209804414U CN201921009961.3U CN201921009961U CN209804414U CN 209804414 U CN209804414 U CN 209804414U CN 201921009961 U CN201921009961 U CN 201921009961U CN 209804414 U CN209804414 U CN 209804414U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- transformer
- secondary side
- wire
- line
- 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
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model provides a transformer of high ann rule performance, including last magnetic core and lower magnetic core, locate the line frame between two magnetic cores to and around the polyurethane enamelled copper line on the line frame, the outer parcel of polyurethane enamelled copper line has the sticky tape, a serial communication port, the line frame includes primary side and secondary side, and wherein, the distance of secondary side to magnetic core is more than 6mm at least. The transformer adopts the three layers of insulated wires to directly wind pins for operation, reduces the production difficulty caused by the original mode of adding sleeves and prolonging flying wires, can be simultaneously immersed into a tin furnace during tin immersion, does not need to be separately tinned, reduces the operation time and improves the production efficiency; meanwhile, the forming of the wire frame is improved, the safe distance between the secondary side and the magnetic core and between the secondary side and the primary side is increased to more than 6mm, and the minimum safe creepage distance of 4.2mm which can completely meet the safety requirement can be achieved.
Description
Technical Field
The utility model relates to a transformer field, in particular to transformer of high ann rule performance.
Background
The conventional products of EE and EI type electronic transformers used at present cannot meet the primary withstand voltage requirement of a secondary pole of 3750V, which is required by safety regulations, but in actual use, the conventional products need to meet the corresponding safety regulations; in order to meet the requirement, the insulation requirement of design is achieved by adding a sleeve pipe at the output end and prolonging the length of the outgoing line, so that the requirement of high-voltage occasions is met.
However, the mode of adding the sleeve and prolonging the outgoing line length increases the production cost, the requirement of mass production cannot be met during mass production, the outgoing line length control difficulty is increased, the product process difficulty is increased, and the efficiency is not high; meanwhile, after the extension outgoing line is used, certain electromagnetic radiation can be generated during actual work, and hidden danger is caused to the stability of the whole line.
Disclosure of Invention
In view of the above shortcomings of the prior art, an object of the present invention is to provide a transformer with high safety performance, which does not increase the operation mode of the secondary bushing and the extension of the outgoing line length on the original basis, so as to satisfy the primary 3750V safety requirement of the electronic transformer to the secondary, and have sufficient creepage distance.
In order to achieve the above objects and other related objects, the present invention provides a transformer with high safety performance, which comprises an upper magnetic core and a lower magnetic core, a wire frame disposed between the two magnetic cores, and a polyurethane enameled copper wire wound on the wire frame, wherein the polyurethane enameled copper wire is wrapped with an adhesive tape, the wire frame comprises a primary side and a secondary side, and the distance from the pin of the secondary side to the magnetic core is more than 6.5 mm.
Furthermore, the outgoing line of the secondary side is a three-layer insulated wire resistant to 6000V high voltage and is directly wound on a stitch, so that a sleeve and an extended flying wire are not required to be added.
Furthermore, the secondary side is provided with a wire outlet slot, so that a wire outlet is placed in the wire outlet slot, and the problem that the wire outlet cannot be placed to cause left and right displacement is solved.
Furthermore, an outgoing line fixing column is arranged between the outgoing line slot and the pin, and the polyurethane enameled copper wire or the three-layer insulated wire can be effectively fixed when the outgoing line is wound on the pin through the outgoing line fixing column, so that the actual production is facilitated.
furthermore, all be provided with the iron clamp on last magnetic core and the lower magnetic core to be used for playing the effect of fixed product after the transformer inserts the PCB board.
Further, go up between the side post of magnetic core and lower magnetic core and be in the same place through epoxy adhesive, simultaneously, also be in the same place through epoxy adhesive between magnetic core and the three-layer insulation coil edge, simultaneously, epoxy glue is comparatively soft, can play the effect of making an uproar of falling of buffering.
Furthermore, the wire frame is vertical or horizontal, and is of a single-groove or multi-groove winding structure.
Furthermore, the magnetic core is EE type or ER type, the saturation magnetic flux density of the magnetic core is above 420mT, and the pressing density of the magnetic core is more than 4.85kg/m3。
Furthermore, all be provided with the louvre on last magnetic core and the lower magnetic core.
Further, the magnetic core is one or a combination of more of an iron powder core, an iron silicon aluminum powder core, a high magnetic flux powder core, a permalloy powder core, a ferrite magnetic core, a silicon steel sheet, a permalloy, an amorphous alloy and a nanocrystalline alloy.
Furthermore, all be provided with the iron clamp on magnetic core and the last magnetic core down for play the effect of fixed product after the transformer inserts the PCB board.
Further, go up the magnetic core and be the square of the outside with interior round style of calligraphy of lower magnetic core, all include the bottom plate, set up center post on the bottom plate and set up in the side post of bottom plate both sides, form the recess between bottom plate, center post and the side post, wherein, be provided with the protective layer in the bottom plate, simultaneously go up and adhere together through epoxy glue between the side post of magnetic core and lower magnetic core.
Furthermore, an overflow port is arranged on the side column to prevent the epoxy resin glue from flowing out and flowing into the groove.
The transformer has the following beneficial effects:
1. The three-layer insulated wire is adopted to directly wind the pins, the production difficulty caused by the mode of adding the sleeve and prolonging the flying wire is reduced, and meanwhile, the three-layer insulated wire can be simultaneously immersed in a tin furnace during tin immersion, so that the tin immersion is not needed to be separately performed, the operation time is shortened, and the production efficiency is improved.
2. The forming of the coil holder is improved, the safe distance between the secondary side and the magnetic core and between the secondary side and the primary side is increased to more than 6mm, and the minimum safe creepage distance of 4.2mm which can completely meet the safety requirement can be achieved.
3. The wire outlet slot is added, so that the wire outlet can be placed into the wire outlet slot, and the problem that the wire outlet cannot be placed and is shifted left and right is avoided.
4. Furthermore, an outgoing line fixing column is arranged between the outgoing line slot and the pin, and the polyurethane enameled copper wire or the three-layer insulating wire can be effectively fixed when the outgoing line is wound on the pin through the outgoing line fixing column, so that the actual production is facilitated.
Drawings
Fig. 1 is a front view of the transformer.
Fig. 2 shows a top view of the transformer.
Fig. 3 is a schematic view showing the internal structure of fig. 2.
In the figure: 1. the magnetic core, 2, the coil holder, 3, the stitch, 4, the primary side, 5, the secondary side, 6, the outgoing line fixing column, 7 and the outgoing line slot.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Example (b):
as shown in fig. 1-2, the utility model provides a transformer of high ann's rule performance, including magnetic core 1, the magnetic core includes magnetic core and lower magnetic core, locates the line frame 2 between two magnetic cores to and the polyurethane enamelled copper line of winding on the line frame, the outer parcel of polyurethane enamelled copper line has the sticky tape, wherein, the line frame includes primary side 4 and secondary side 5, and stitch 3 has all been drawn forth to primary side 4 and secondary side 5.
In this embodiment, the distance from the secondary side stitch 3 to the magnetic core is 6.5mm, and the safety distance between the secondary side and the magnetic core and the primary side is increased by increasing the secondary side to be more than 6mm, so that the minimum safety creepage distance of 4.2mm which can completely meet the safety requirements can be achieved.
Meanwhile, the outgoing line of the secondary side 5 is a high-voltage-resistant three-layer insulated wire and is directly wound on the pin 3, so that a sleeve and an extended flying wire are not required to be added.
In this embodiment, the upper magnetic core and the lower magnetic core are both provided with iron clamps for fixing the product after the transformer is inserted into the PCB.
In this embodiment, go up between the side post of magnetic core and lower magnetic core and be in the same place through epoxy adhesive, simultaneously, also be in the same place through epoxy adhesive between magnetic core and the three-layer insulation coil edge, simultaneously, epoxy glue is comparatively soft, can play the effect of making an uproar that falls in the buffering.
In this embodiment, the wire frame is vertical or horizontal, and has a single-slot or multi-slot winding structure.
In this embodiment, the magnetic core is EE type or ER type, and the saturation magnetic flux density of the magnetic core is 420mTAbove, the pressed density of the magnetic core is more than 4.85kg/m3。
In this embodiment, the upper magnetic core and the lower magnetic core are both provided with heat dissipation holes to increase the overall heat dissipation performance of the transformer.
In this embodiment, the magnetic core is one or a combination of iron powder core, sendust core, high magnetic flux powder core, permalloy powder core, ferrite core, silicon steel sheet, permalloy, amorphous alloy and nanocrystalline alloy.
In this embodiment, the lower magnetic core and the upper magnetic core are both provided with iron clamps for fixing the product after the transformer is inserted into the PCB.
In this embodiment, go up magnetic core and lower magnetic core and be the square outside and circle the style of calligraphy, all include the bottom plate, set up center post on the bottom plate and set up in the side post of bottom plate both sides, form the recess between bottom plate, center post and the side post, wherein, be provided with the protective layer in the bottom plate, simultaneously go up and be in the same place through epoxy adhesive between the side post of magnetic core and lower magnetic core.
In this embodiment, the side post is provided with an overflow port to prevent the epoxy resin glue from flowing out and flowing into the groove.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a transformer of high ann rule performance, includes magnetic core and lower magnetic core, locates the line frame between two magnetic cores to and the polyurethane enamelled copper line of winding on the line frame, the outer parcel of polyurethane enamelled copper line has the sticky tape, wherein, the line frame includes primary side and secondary side, and its characterized in that, the stitch of secondary side is more than 6.5mm to the distance of magnetic core.
2. The transformer with high safety performance as claimed in claim 1, wherein the outlet wire of the secondary side is a three-layer insulated wire resistant to 6000V high voltage and is directly wound on a stitch, so that no bushing and extension flying wire are required.
3. The transformer with high safety performance as claimed in claim 2, wherein the secondary side is provided with a wire outlet slot, so that the wire outlet is put into the wire outlet slot, thereby avoiding the problem of left and right displacement caused by the fact that the wire outlet cannot be placed.
4. The transformer with high safety performance according to claim 3, wherein an outgoing line fixing column is arranged between the outgoing line slot and the pin, and when the outgoing line is wound on the pin, the polyurethane enameled copper wire or the three-layer insulated wire can be effectively fixed through the outgoing line fixing column, so that actual production is facilitated.
5. The transformer of claim 1, wherein the upper core and the lower core are provided with iron clips for fixing a product when the transformer is inserted into the PCB.
6. The transformer with high safety performance as claimed in claim 2, wherein the side legs of the upper magnetic core and the lower magnetic core are adhered together by epoxy resin, and the magnetic core and the edges of the three-layer insulated coil are also adhered together by epoxy resin, and the epoxy resin is soft, so as to achieve the effect of buffering and reducing noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921009961.3U CN209804414U (en) | 2019-07-01 | 2019-07-01 | Transformer with high safety performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921009961.3U CN209804414U (en) | 2019-07-01 | 2019-07-01 | Transformer with high safety performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209804414U true CN209804414U (en) | 2019-12-17 |
Family
ID=68818069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921009961.3U Active CN209804414U (en) | 2019-07-01 | 2019-07-01 | Transformer with high safety performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209804414U (en) |
-
2019
- 2019-07-01 CN CN201921009961.3U patent/CN209804414U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106531435A (en) | Winding tooling of planar coil and winding method of winding tooling | |
| CN206421891U (en) | A kind of transformer and Switching Power Supply for facilitating Automated winding | |
| CN208433274U (en) | Multisection type air gap transformator | |
| CN209804414U (en) | Transformer with high safety performance | |
| CN106449053B (en) | High frequency transformer | |
| CN203721416U (en) | Novel integrated PFC (power factor correction) inductor | |
| CN210200499U (en) | High power flattened core transformer | |
| CN205177580U (en) | Llc transformer | |
| CN203366953U (en) | Ultra-thin inductance framework | |
| CN205789444U (en) | A kind of mains transformer | |
| CN201532845U (en) | Pulse transformer processed by circular magnetic core | |
| CN207834091U (en) | A kind of common mode choke easy to assembly | |
| CN207097625U (en) | A kind of high frequency AH series inductance structures | |
| CN209804405U (en) | Power enhancement type electronic transformer | |
| CN201820623U (en) | Transformer structure | |
| CN105374521B (en) | A kind of EI types transformer | |
| CN101996745A (en) | Transformer with magnetic iron wire and conductive aluminum wire | |
| CN204668076U (en) | Common-mode inductor | |
| CN206040391U (en) | Winding is at no metal terminal magnetic cell of self pin | |
| CN209804427U (en) | Electronic transformer of wireless coil | |
| CN203444907U (en) | SMD (surface mounted device) octagonal inductor | |
| US20030067374A1 (en) | Transformer coil bracket | |
| CN218123154U (en) | Planar inductor | |
| CN220821270U (en) | Ultrathin LLC transformer of high-efficiency AC-DC module power supply | |
| CN219180323U (en) | Magnetic flux structure, inductor and switching power supply transformer capable of improving electromagnetic performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |