CN207993628U - A kind of Switch Power Transformer - Google Patents
A kind of Switch Power Transformer Download PDFInfo
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- CN207993628U CN207993628U CN201820503336.3U CN201820503336U CN207993628U CN 207993628 U CN207993628 U CN 207993628U CN 201820503336 U CN201820503336 U CN 201820503336U CN 207993628 U CN207993628 U CN 207993628U
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- 238000004804 winding Methods 0.000 claims abstract description 121
- 239000002390 adhesive tape Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
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Abstract
The utility model discloses a kind of Switch Power Transformer comprising skeleton, the first magnetic core, the second magnetic core, line winding, the encapsulated band of line and packet magnetic core adhesive tape；Wherein, skeleton includes main part and lead portion；Lead portion both sides are equipped with eight pins, including height less than the 5th pin of the bottom of lead portion successively；First magnetic core and the second magnetic core are in E fonts, and the two opening is opposite and is embedded at main part；Line winding is wound in the peripheral surface of cylinder comprising auxiliary winding, shield winding, armature winding and secondary windings, auxiliary winding are set to the 5th pin with shield winding for suspension the end of a thread of interleaved coiling and shield winding；Secondary windings is using double insulated wire interleaved coilings.The peripheral surface of winding along the encapsulated band of line is wound；Packet magnetic core adhesive tape wraps up the first magnetic core and the second magnetic core.The utility model winding construction reasonable design optimizes, and simplifies winding structure, improves production efficiency, while reducing leakage inductance, improves transformer transfer efficiency.
Description
Technical Field
The utility model relates to a transformer especially relates to a high frequency power transformer.
Background
The power transformer functions as power transmission, voltage conversion and insulation isolation, and is widely applied to power supply technology and power electronic technology as a main soft magnetic electromagnetic component. According to the working frequency, the method can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100 kHz-500 kHz, 500 kHz-1 MHz and more than 10 MHz. The high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency (10kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine. With the great increase of the consumption of electronic products, manufacturers are required to continuously optimize the production process of the power transformer so as to improve the production efficiency. Meanwhile, the continuous miniaturization of the volume of the electronic product also puts higher requirements on the conversion rate of the transformer.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a high frequency power transformer has improved the production efficiency and the conversion efficiency of transformer, has improved the radiating effect simultaneously.
The utility model discloses a high frequency power transformer, include: the magnetic core comprises a framework, a first magnetic core, a second magnetic core, a coil winding, a coil adhesive tape and a magnetic core adhesive tape; wherein,
the skeleton includes: the main body part and the pin parts are arranged on two sides of the main body part; the main body part comprises a column body and an assembling hole, and the assembling hole is arranged in the column body; a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin are sequentially arranged on one side of the pin part, and the height of the fifth pin is lower than that of the other pins; a seventh pin, an eighth pin, a ninth pin, a tenth pin and an eleventh pin are sequentially arranged on the other side of the first lead;
the first magnetic core and the second magnetic core are in an E-shaped symmetrical structure, openings of the first magnetic core and the second magnetic core are oppositely arranged on the main body part, and the middle parts of the first magnetic core and the second magnetic core are embedded in the assembling hole;
the coil winding is wound on the peripheral surface of the cylinder and is arranged in a space surrounded by the cylinder and two ends of the first magnetic core and the second magnetic core; the coil winding comprises an auxiliary winding, a shielding winding, a primary winding and a secondary winding, wherein the starting wire end of the auxiliary winding is arranged on the first pin, the wire tail of the auxiliary winding is arranged on the third pin, the starting wire end of the shielding winding is arranged on the third pin, the suspension wire end of the shielding winding is arranged on the fifth pin, the auxiliary winding and the shielding winding are wound in a staggered mode at intervals, and the distance between the starting point of the auxiliary winding and the first pin is equal to the distance between the starting point of the shielding winding and the third pin; the initial wire head of the primary winding is arranged on the fourth pin, and the wire tail of the primary winding is arranged on the sixth pin; the secondary winding adopts double insulated wires for alternate winding, the initial wire head of the secondary winding is arranged on the seventh pin, and the wire tail of the secondary winding is arranged on the eleventh pin;
the wire wrapping tape is wound along the outer peripheral surface of the wire coil winding;
the magnetic core wrapping adhesive tape wraps the first magnetic core and the second magnetic core in a winding mode along the butt joint direction of the first magnetic core and the second magnetic core.
Furthermore, bumps are respectively arranged on one sides of the first pin and the sixth pin of the pin part, and the height of each bump is higher than that of the fifth pin and lower than that of the other pins. Further, the second pin, the eighth pin and the ninth pin are movably connected to the pin part.
Further, the framework is vertical.
Further, the thickness of the first core and the second core was changed from 4.9mm to 8.2 mm.
Compared with the prior art, the utility model discloses can obtain including following technological effect:
the high-frequency power transformer adopts the vertical type framework, the height of the fifth pin arranged on one side of the pin part is lower than the height of the lug of the pin part, the lug is used for connecting the suspension wire end of the shielding winding, the subsequent pin shearing process is omitted by the aid of the design scheme, and production efficiency is improved. Meanwhile, the auxiliary winding and the shielding winding are designed into double-wire parallel winding, so that the winding machine is convenient to install double guide pins to perform double-wire parallel winding operation, and the production efficiency of the transformer is greatly improved. The secondary winding adopts double insulated wires to be wound in parallel, so that the primary pole coupling and the secondary pole coupling of the transformer are increased, the leakage inductance is reduced, and the conversion efficiency of the transformer is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a perspective view of a high frequency power transformer;
FIG. 2 is an exploded view of a high frequency power transformer;
FIG. 3 is a schematic view of a lead portion;
FIG. 4 is an enlarged view of the lead portion;
fig. 5 is a schematic diagram of the operation of the high frequency power transformer.
Description of the reference numerals
The transformer comprises a 1-framework, a 2-first magnetic core, a 3-second magnetic core, a 4-wire winding, a 5-wire winding tape, a 6-wire winding tape, an 11-main body part, a 12-pin part, a 41-auxiliary winding, a 42-shielding winding, a 43-primary winding, a 44-secondary winding, a 111-column, a 112-assembly hole, a P1-first pin, a P2-second pin, a P3-third pin, a P4-fourth pin, a P5-fifth pin, a P6-sixth pin, a P7-seventh pin, a P8-eighth pin, a P9-ninth pin, a P10-tenth pin, a P11-eleventh pin and a 121-bump.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 4, fig. 1 is a perspective view of a high-frequency power transformer, fig. 2 is an exploded view of the high-frequency power transformer, fig. 3 is a schematic view of a lead portion, and fig. 4 is an enlarged view of the lead portion. As shown in fig. 1 to 4, it includes: the magnetic core comprises a framework 1, a first magnetic core 2, a second magnetic core 3, a coil winding 4, a coil adhesive tape 5 and a magnetic core adhesive tape 6; among them, the frame 1 is vertical, and preferably, EE16 vertical frame. It includes: a body portion 11 and a lead portion 12 provided on one side of the body portion 11. The main body 11 includes a column 111 and a mounting hole 112, and the mounting hole 112 is provided in the column 111.
The first magnetic core 2 and the second magnetic core 3 are in an E-shaped symmetrical structure, and the openings of the two are oppositely arranged on the main body part 11, and the middle convex block is partially embedded in the assembly hole 112.
A first pin P1, a second pin P2, a third pin P3, a fourth pin P4, a fifth pin P5 and a sixth pin P6 are sequentially arranged on one side of the pin part 121, a bump 121 is respectively arranged on one side of the first pin P1 and one side of the sixth pin P6, and the height of the bump 121 is higher than that of the fifth pin and lower than that of the other pins. When the present application is assembled with a transformer housing, the bumps 121 serve as a support.
The other side of the pin part 12 is provided with a seventh pin P7, an eighth pin P8, a ninth pin P9, a 10 th pin P10 and an 11 th pin P11 in sequence, wherein the eighth pin P8 and the ninth pin P9 are pulled out. The unused second pin P2, the eighth pin P8 and the ninth pin P9 are removed, so that the internal space of the transformer is saved, and the requirement of the transformer for small volume is met. Since the second pin P2, the eighth pin P8 and the ninth pin P9 are already removed, the indications of the second pin P2, the eighth pin P8 and the ninth pin P9 are not labeled in fig. 2 to 4.
The coil winding 4 is wound around the outer peripheral surface of the cylindrical body 111 of the body 11 and is disposed in a space surrounded by the cylindrical body 111 and both ends of the first and second magnetic cores 2 and 3.
The coil winding 4 comprises an auxiliary winding 41, a shielding winding 42, a primary winding 43 and a secondary winding 44, wherein the starting end of the auxiliary winding 41 is arranged on a first pin P1, the tail of the auxiliary winding 41 is arranged on a third pin P3, the starting end of the shielding winding 42 is arranged on a third pin P3, and the suspension end of the shielding winding 42 is arranged on a fifth pin P5, wherein the suspension end represents one end of the shielding winding which is not suspended and connected; the auxiliary winding 41 and the shielding winding 42 are simultaneously and alternately wound. The distance between the winding start point of the auxiliary winding 41 and the first pin P1 is equal to the distance between the winding start point of the shielding winding 42 and the third pin P3, so that the full-automatic winding machine can conveniently install the double guide pins to perform double-wire parallel winding operation, the winding mode reduces the winding time of the transformer, and the production efficiency of the transformer is improved. The start end of the primary winding 43 is disposed at the fourth pin P4, and the end thereof is disposed at the sixth pin P6. The secondary winding 44 adopts double insulated wires for alternate winding, and the design increases the coupling of the primary pole and the secondary pole of the transformer, reduces leakage inductance and improves the conversion efficiency of the transformer; the start end of the secondary winding 44 is provided at the seventh pin P7, and the end thereof is provided at the eleventh pin P11.
The coil tape 5 is wound along the outer circumferential surface of the coil winding 4.
The magnetic core wrapping tape 6 wraps the first magnetic core 2 and the second magnetic core 3 along the butt joint direction of the first magnetic core 2 and the second magnetic core 3.
Preferably, the first core 2 and the second core 3 are both thickened, and are changed from 4.9mm to 8.2 mm. The thickened design of the magnetic core increases the sectional area of the magnetic core, greatly improves the transmission power and the conversion efficiency of the magnetic core, and improves the heat dissipation effect.
The operation principle of the high-frequency power transformer in the present embodiment is shown in fig. 5. In this embodiment, the specific manufacturing process of the high-frequency power transformer is as follows:
1. the primary winding 43, the auxiliary winding 41, the shield winding 42, and the secondary winding 44 are wound on the main body 111 in this order to form the coil winding 4. The coil winding 4 is fixed to the column 111 by wrapping the coil tape 5 around the outer peripheral surface of the coil winding 4. The two ends of each coil were connected to each pin as required in table 1 below.
2. The first magnetic core 2 and the second magnetic core 3 are opposite in opening, the middle parts of the first magnetic core 2 and the second magnetic core 3 are respectively embedded into the assembly holes 112 of the framework 1 from the two sides of the framework 1, and the coil winding 4 is wrapped at the two ends of the first magnetic core 2 and the second magnetic core 3.
3. A core-wrapping tape 6 is wound around the outer peripheral surfaces of the first and second cores 2 and 3, and the first and second cores 2 and 3 are fixed to the main body portion 11 of the frame 1.
4. The second pin P2, the eighth pin P8 and the ninth pin P9 are removed to save the space of the high-frequency transformer, so that the whole structure is more compact, and the requirement of the existing electronic product on volume miniaturization is met.
To sum up, the high frequency power transformer of this application adopts EE16 vertical type skeleton. The bump height of the height pin part of the fifth pin is used for connecting the suspension wire end of the shielding winding, and the subsequent pin shearing process is omitted by the design scheme, so that the production efficiency is improved. Meanwhile, the auxiliary winding and the shielding winding are designed to be in double-wire parallel winding, the distance between the winding starting point and the first pin of the auxiliary winding is equal to the distance between the winding starting point and the third pin of the shielding winding, the winding machine is convenient to install the double guide pins to carry out double-wire parallel winding operation, the winding time of the transformer is reduced by the winding mode, and the production efficiency of the transformer is improved. The secondary winding adopts double insulated wires to be wound in parallel, so that the primary pole coupling and the secondary pole coupling of the transformer are increased, the leakage inductance is reduced, and the conversion efficiency of the transformer is improved. The first magnetic core and the second magnetic core are changed from original 4.9mm to 8.2mm, the thickened design of the magnetic cores increases the sectional area of the magnetic cores, greatly improves the transmission power and the conversion efficiency of the magnetic cores, and improves the heat dissipation effect.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. A high frequency power transformer, comprising: the magnetic core comprises a framework (1), a first magnetic core (2), a second magnetic core (3), a coil winding (4), a coil adhesive tape (5) and a magnetic core adhesive tape (6); wherein,
the skeleton (1) comprises: a main body part (11) and pin parts (12) arranged on both sides of the main body part (11); the main body part (11) comprises a column body (111) and an assembling hole (112), and the assembling hole (112) is arranged in the column body (111); a first pin (P1), a second pin (P2), a third pin (P3), a fourth pin (P4), a fifth pin (P5) and a sixth pin (P6) are sequentially arranged on one side of the pin part (12), and the height of the fifth pin (P5) is lower than that of other pins; the other side of the first lead is sequentially provided with a seventh lead (P7), an eighth lead (P8), a ninth lead (P9), a tenth lead (P10) and an eleventh lead (P11);
the first magnetic core (2) and the second magnetic core (3) are in an E-shaped symmetrical structure, openings of the first magnetic core and the second magnetic core are oppositely arranged on the main body part (11), and the middle parts of the first magnetic core and the second magnetic core are embedded in the assembling hole (112);
the coil winding (4) is wound on the outer peripheral surface of the cylinder (111) and is arranged in a space surrounded by the cylinder (111) and two ends of the first magnetic core (2) and the second magnetic core (3); the coil winding comprises an auxiliary winding (41), a shielding winding (42), a primary winding (43) and a secondary winding (44), the starting end of the auxiliary winding (41) is arranged on the first pin (P1), the tail end of the auxiliary winding is arranged on the third pin (P3), the starting end of the shielding winding (42) is arranged on the third pin (P3), the suspension end of the shielding winding is arranged on the fifth pin (P5), the auxiliary winding (41) and the shielding winding (42) are alternately wound, and the distance between the starting point of the auxiliary winding (41) and the first pin (P1) is equal to the distance between the starting point of the shielding winding (42) and the third pin (P3); the initial line head of the primary winding (43) is arranged on the fourth pin (P4), and the line tail of the primary winding is arranged on the sixth pin (P6); the secondary winding (44) adopts double insulated wires for alternate winding, the starting wire end of the secondary winding is arranged on the seventh pin (P7), and the wire tail of the secondary winding is arranged on the eleventh pin (P11);
the coil adhesive tape (5) is wound along the outer peripheral surface of the coil winding (4);
the magnetic core wrapping adhesive tape (6) wraps the first magnetic core (2) and the second magnetic core (3) in a winding mode along the butt joint direction of the first magnetic core (2) and the second magnetic core (3).
2. The high frequency power transformer according to claim 1, wherein one side of the first pin (P1) and the sixth pin (P6) of the lead part (12) is provided with a bump (121), respectively, and the height of the bump (121) is higher than the fifth pin and lower than the other pins.
3. The high frequency power transformer according to claim 1, wherein the second pin (P2), the eighth pin (P8) and the ninth pin (P9) are movably connected to the pin part (12).
4. A high frequency power transformer according to any one of claims 1 to 3, characterized in that said bobbin (1) is vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503336.3U CN207993628U (en) | 2018-04-10 | 2018-04-10 | A kind of Switch Power Transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820503336.3U CN207993628U (en) | 2018-04-10 | 2018-04-10 | A kind of Switch Power Transformer |
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| Publication Number | Publication Date |
|---|---|
| CN207993628U true CN207993628U (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820503336.3U Active CN207993628U (en) | 2018-04-10 | 2018-04-10 | A kind of Switch Power Transformer |
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| CN (1) | CN207993628U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545543A (en) * | 2018-11-30 | 2019-03-29 | 深圳原能电器有限公司 | A kind of automatization processing method and transformer of transformer |
| CN112908647A (en) * | 2021-03-27 | 2021-06-04 | 深圳市力可为科技有限公司 | High-frequency transformer with breakdown-preventing structure |
| CN113363063A (en) * | 2021-04-20 | 2021-09-07 | 广东力王高新科技股份有限公司 | Easily-assembled high-power transformer and production method thereof |
-
2018
- 2018-04-10 CN CN201820503336.3U patent/CN207993628U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545543A (en) * | 2018-11-30 | 2019-03-29 | 深圳原能电器有限公司 | A kind of automatization processing method and transformer of transformer |
| CN109545543B (en) * | 2018-11-30 | 2024-08-27 | 深圳原能电器有限公司 | Automatic processing method of transformer and transformer |
| CN112908647A (en) * | 2021-03-27 | 2021-06-04 | 深圳市力可为科技有限公司 | High-frequency transformer with breakdown-preventing structure |
| CN113363063A (en) * | 2021-04-20 | 2021-09-07 | 广东力王高新科技股份有限公司 | Easily-assembled high-power transformer and production method thereof |
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Denomination of utility model: A high frequency power transformer Effective date of registration: 20211102 Granted publication date: 20181019 Pledgee: Bank of Guangzhou Co.,Ltd. Huizhou Branch Pledgor: GUANGDONG LIWANG HIGH-TECH CO.,LTD. Registration number: Y2021980011779 |