CN203871105U - High-frequency transformer - Google Patents
High-frequency transformer Download PDFInfo
- Publication number
- CN203871105U CN203871105U CN201420229188.2U CN201420229188U CN203871105U CN 203871105 U CN203871105 U CN 203871105U CN 201420229188 U CN201420229188 U CN 201420229188U CN 203871105 U CN203871105 U CN 203871105U
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- magnetic core
- mount pad
- frequency transformer
- high frequency
- bobbin
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Abstract
The utility model discloses a high-frequency transformer. The high-frequency transformer comprises a primary coil (2), a secondary coil (3), a first LM magnetic core (4) with a magnetic core middle column (6), a second LM magnetic core (5) with a magnetic core middle column (6) and a spool (1); the spool (1) comprises a winding groove (101), a first magnetic core installing seat (102) and a second magnetic core installing seat (103); the first magnetic core installing seat (102) is arranged on the upper side of the winding groove (101); the second magnetic core installing seat (103) is arranged on the lower side of the winding groove (101); one end of the second magnetic core installing seat (103) is provided with a first through U-shaped groove (106); the bottom of each of the second magnetic core installing seat (103) portions which are arranged on the bilateral sides of the first U-shaped groove (106) respectively is provided with a pin (104); a through magnetic core hole (105) is formed in the spool (1) along the axis direction; the first LM magnetic core (4) is arranged on the spool (1) through the first magnetic core installing seat (102) and the magnetic core hole (105); the second LM magnetic core (5) is arranged on the spool (1) through the second magnetic core installing seat (103) and the magnetic core hole (105); the primary coil (2) and the secondary coil (3) wind the winding groove (101); a lead wire of the secondary coil (3) penetrates the first U-shaped groove (106) to be electrically connected with the pins (104).
Description
Technical field
The utility model relates to transformer technology field, is specifically related to a kind of high frequency transformer.
Background technology
The development of high frequency technique, TRC (time ratio control) technology, has brought the revolutionary development of Switching Power Supply.High frequency switch power has the features such as power output is high, stable output, low in energy consumption, volume is little, input range is wide, operating efficiency is high, anti-electromagnetic interference, assembly mould blocking, the future thrust that it has become Switching Power Supply, is widely used in the electronic products such as computer and ancillary equipment, communication equipment, the network equipment, consumer electronics, automotive electronics, inverter.
High frequency transformer is the chief component of high frequency switch power, and its volume size is directly connected to the volume size of high frequency switch power.The arriving in mutual epoch, electronic product is towards the future development of portability, as the high frequency switch power of its assembly correspondingly towards better quality, future development that volume is less, thinner, lighter.
The power output of transformer and magnetic flux density are directly proportional to the product of current density, magnetic flux density depends primarily on the overall dimension of magnetic core and the magnetic permeability of magnetic core, because the limited size of current density is in temperature rise setting, therefore, in the time of Design of Transformer, in the rational scope of exciting current, consider in the situation of core material cost, conventionally improve magnetic flux density by increasing overall dimension, to improve the power output of transformer.
Transformer inserted sheet, has met the design requirement of high frequency switch power assembly mould blocking well, and high frequency transformer adopts inserted sheet structure more.Switching mode power supply transformer in the market comprises E type core transformers, C type core transformers, ring type magnetic core transformer, R type core transformers, E type core transformers, it is thicker, and its volume is large, Heavy Weight, is difficult to meet the needs of complete electronic set miniaturization.C type core transformers and ring type magnetic core transformer, processing technology is more complicated, and quality conformance is poor, and C type core transformers also exists noise larger, cannot meet the high growth requirement of refining of electronic equipment.R type core transformers has the advantages such as leakage field is minimum, loss is little, temperature rise is low, noise is minimum, simple in structure, safe and reliable, it is the magnetic core conventionally adopting in current high frequency transformer, but due to its moulding complexity, thicker, cost is higher, and volume cannot meet more greatly the demand of complete electronic set miniaturization.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of small volume, high-power a kind of high frequency transformer.
The technical scheme that the utility model technical solution problem adopts is: a kind of high frequency transformer, comprise primary coil, secondary coil, the LM magnetic core with magnetic core intermediolateral column, the 2nd LM magnetic core, the bobbin with magnetic core intermediolateral column, bobbin comprises winding slot, be arranged on the first magnetic core mount pad of winding slot upside, be arranged on the second magnetic core mount pad of winding slot downside, one end of the second magnetic core mount pad has the second U-shaped groove of up/down perforation, and the second magnetic core mount pad bottom of the second U-shaped groove both sides is provided with stitch; Bobbin is provided with the magnetic core hole of up/down perforation along axis direction, magnetic core hole and magnetic core intermediolateral column are the structure cooperatively interacting; The one LM magnetic core is arranged on bobbin by the first magnetic core mount pad and magnetic core hole, and the 2nd LM magnetic core is arranged on bobbin by the second magnetic core mount pad and magnetic core hole; Primary coil, secondary coil are all wound on winding slot, and the lead-out wire of secondary coil is through the second U-shaped groove electrical connection stitch.
Wherein, winding slot, the first magnetic core mount pad, the second magnetic core mount pad, magnetic core hole, a LM magnetic core, the 2nd LM magnetic core form the magnetic structure of high frequency transformer jointly, and primary coil, secondary coil, stitch form the electric mapped structure of high frequency transformer jointly.
Further, the bobbin of high frequency transformer is the integrated formed structure being made up of winding slot, the first magnetic core mount pad, the second magnetic core mount pad.
Further, the first magnetic core mount pad of high frequency transformer, also comprises two circular orientation pieces, and circular orientation piece is and is symmetrically arranged, and is arranged on the upper side of the first magnetic core mount pad of magnetic core hole opening part.On the first magnetic core mount pad of the circular orientation piece internal ring portion of high frequency transformer, be provided with the first U-shaped groove of up/down perforation.
High frequency transformer of the present utility model is applicable to the technical fields such as computer and ancillary equipment, communication equipment, the network equipment, consumer electronics, automotive electronics, inverter, as long as adopting the technical field of high frequency transformer all applicable.
Compared with prior art, the beneficial effects of the utility model are: high frequency transformer of the present utility model adopts magnetic structure stronger, more powerful, a LM magnetic core, the 2nd LM magnetic core that magnetic flux density is larger, in same volume situation, its power output is larger, and in same power output situation, its volume is less; Magnetic core hole structurally cooperatively interacts with magnetic core intermediolateral column, the axis of a LM magnetic core and the 2nd LM magnetic core, and axis, the magnetic core centerline hole of winding slot overlap substantially, guarantee that high frequency transformer is less on volume; Primary coil, the each winding cross winding of secondary coil are on wire casing, and Energy Coupling efficiency is high, and heat waste is little, and in same power output situation, high frequency transformer can do littlely; High frequency transformer of the present utility model, adopt integrated formed structure, have assembly few, simple in structure, be easy to manufacture and design, low cost of manufacture.Because its volume is little, power is large, can make to adopt the equipment of this high frequency transformer thinner, lighter, be easier to use.
Brief description of the drawings
In order to clearly demonstrate the utility model, adopt accompanying drawing to make an explanation to the utility model and embodiment below, and accompanying drawing is made to brief description.Accompanying drawing and brief description of the drawings are schematically, do not form concrete restriction of the present utility model.Under the present utility model design is instructed, can also pass through accompanying drawing below, obtain other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of bobbin of the present utility model.
Fig. 3 is the structural representation of magnetic core of the present utility model.
In figure, Reference numeral is expressed as: 1-bobbin, 2-primary coil, 3-secondary coil, 4-the one LM magnetic core, 5-the 2nd LM magnetic core, 6-magnetic core intermediolateral column, 101-winding slot, 102-the first magnetic core mount pad, 103-the second magnetic core mount pad, 104-stitch, 105-magnetic core hole, the U-shaped groove of 106-second, 107-circular orientation piece, the U-shaped groove of 108-first.
Embodiment
Below in conjunction with Figure of description, embodiment of the present utility model is further illustrated.The explanation of these execution modes is mainly used in helping to understand inventive concept of the present utility model, the technical problem solving, the technical characterictic that forms technical scheme and the technique effect bringing.Be schematically to the explanation of these execution modes, do not form concrete restriction of the present utility model.The technical characterictic that each execution mode of the utility model is related, just can combine mutually as long as do not form each other conflict, and by being equal to all embodiment alternative or that obviously variant obtains, and embodiment of the present utility model is identical in fact.
As shown in Figure 1 to Figure 3, a kind of high frequency transformer of the present utility model, comprise primary coil 2, secondary coil 3, the LM magnetic core 4 with magnetic core intermediolateral column 6, the 2nd LM magnetic core 5, the bobbin 1 with magnetic core intermediolateral column 6, bobbin 1 comprises winding slot 101, be arranged on the first magnetic core mount pad 102 of winding slot 101 upsides, be arranged on the second magnetic core mount pad 103 of winding slot 101 downsides, the second magnetic core mount pad 103 bottoms that one end of the second magnetic core mount pad 103 has the U-shaped groove of the second U-shaped groove 106, the second 106 both sides of up/down perforation are provided with stitch 104; Bobbin 1 is provided with the magnetic core hole 105 of up/down perforation along axis direction, magnetic core hole 105 and the structure of magnetic core intermediolateral column 6 for cooperatively interacting; The one LM magnetic core 4 is arranged on bobbin 1 by the first magnetic core mount pad 102 and magnetic core hole 105, and the 2nd LM magnetic core 4 is arranged on bobbin 1 by the second magnetic core mount pad 102 and magnetic core hole 105; Primary coil 2, secondary coil 3 are all wound on winding slot 101, and the lead-out wire of secondary coil 3 is electrically connected stitch 104 through the second U-shaped groove 106.Wherein:
As shown in Figure 1, simultaneously with reference to shown in Fig. 2, Fig. 3, the magnetic core intermediolateral column 6 of a LM magnetic core 4 and the 2nd LM magnetic core 5 is cylindrical-shaped structure, and winding slot 101 is also cylindrical-shaped structure.The upside of winding slot 101 is provided with the first magnetic core mount pad 102, and downside is provided with the second magnetic core mount pad 103, the first magnetic core mount pads 102, winding slot 101, the common formation spool body of the second magnetic core mount pad 103.Spool body is provided with the magnetic core hole 105 that runs through the first magnetic core mount pad 102, winding slot 101, the second magnetic core mount pad 103 along axis direction, magnetic core hole 105 is cylindrical cavity, and magnetic core hole 105 structurally cooperatively interacts with magnetic core intermediolateral column 6; Winding slot 101, the first magnetic core mount pad 102, the second magnetic core mount pad 103, magnetic core hole 105, a LM magnetic core 4 and the common magnetic structure that forms high frequency transformer of the 2nd LM magnetic core 5.This magnetic structure, adopts a LM magnetic core 4 and the combination of 5 two LM magnetic cores of the 2nd LM magnetic core, and its magnetic structure is stronger, more powerful, and magnetic flux density is large, and in the situation of same volume, it has larger power output compared with other magnetic cores; Magnetic core hole 105 and the structure of magnetic core intermediolateral column 6 for cooperatively interacting, be conducive to fix a LM magnetic core 4 and the 2nd LM magnetic core 5, make the winding slot 101 that magnetic core hole 105 is set there is less volume simultaneously, the axis of winding slot 101 and magnetic core hole 105 center lines overlap, pipe thickness between winding slot 101 and magnetic core hole 105 is even, is conducive to make full use of the magnetic inductive capacity of a LM magnetic core 4 and the 2nd LM magnetic core 5.Between the one LM magnetic core 4 and the 2nd LM magnetic core 5, be in contact with one another, space is little, and space hold is few, thereby further reduces the volume of high frequency transformer.
Stitch 104 is set, stitch 104 electrical connection electric loadings in the second magnetic core mount pad 103 bottoms, the second U-shaped groove 106 both sides.Primary coil 2 is wound on wire casing 101, and primary coil 2 connects power supply by lead-out wire; Secondary coil 3 comprises multiple windings, the coiling of each winding intersection, and secondary coil 3 is electrically connected stitch 104 by lead-out wire.Primary coil 2, secondary coil 3, the common electric mapped structure that forms high frequency transformer of stitch 104.This electric mapped structure, each winding coupled is good, is conducive to improve the Energy Coupling of high frequency transformer, reduces heat waste, is more conducive to reduce the volume of high frequency transformer.
Be more than the making implementation process of high frequency transformer, can find out from its constitutive requirements and compound mode, primary coil 2, the each winding cross winding of secondary coil 3 are on wire casing 101, Energy Coupling efficiency is high, heat waste is little, the in the situation that of same power output, is conducive to reduce the volume of high frequency transformer; It is strong that the one LM magnetic core 4 and the 2nd LM magnetic core 5 have magnetic structure, and power is large, and magnetic flux density is large, and thermal resistance is little, attenuation is little, shield effectiveness is good, and therefore, the in the situation that of same volume, its power output is larger, and the in the situation that of same power output, its volume is less; Pipe thickness between winding slot 101 and magnetic core hole 105 is even, is conducive to make full use of the magnetic inductive capacity of a LM magnetic core 4 and the 2nd LM magnetic core 5; Magnetic core hole 105 structurally cooperatively interacts with magnetic core intermediolateral column 6, magnetic core intermediolateral column 6, magnetic core hole 105, winding slot 101 are cylindrical-shaped structure, the axis of the one LM magnetic core 4 and the 2nd LM magnetic core 5, axis, the magnetic core hole 105 center line lines of winding slot 101 overlap substantially, guarantee that high frequency transformer is less on volume.High frequency transformer of the present utility model have assembly few, simple in structure, be easy to the feature that manufactures and designs, cost of manufacture is low.
In order to reduce the space between assembly, further reduce the volume of high frequency transformer, as shown in Figure 2, and as preferentially, the integrated formed structure of bobbin 1 for being formed by winding slot 101, the first magnetic core mount pad 102, the second magnetic core mount pad 103.Integrated formed structure, does not have space between winding slot 101, the first magnetic core mount pad 102,103, and the structure of bobbin 1 is more stable, and high frequency transformer can do littlely; Integrated formed structure, has saved the assembling procedure of bobbin 1, and manufacturing cost is lower.
Be locked on bobbin 1 in order to ensure a LM magnetic core 4, as shown in Figure 2, as preferably, the first magnetic core mount pad 102 of high frequency transformer, also comprise two circular orientation pieces 107, circular orientation piece 107 is and is symmetrically arranged, and is arranged on the upper side of the first magnetic core mount pad 102 of magnetic core hole 105 opening parts.Two circular orientation pieces 107 cooperatively interact, and a LM magnetic core 4 are carried out spacing, guarantee that a LM magnetic core 4 is locked on bobbin 1.
Primary coil 2 lead-out wires are in the time being connected with power supply, lead-out wire can take certain volumetric spaces, in order to reduce the space hold of primary coil 2 lead-out wires, further reduce the volume of high frequency transformer, as shown in Figure 2, as preferably, on the first magnetic core mount pad 102 of circular orientation piece 107 internal ring portions of high frequency transformer, be provided with the first U-shaped groove 108 of up/down perforation.
Industrial applicibility of the present utility model: as mentioned above, high frequency transformer of the present utility model, owing to adopting integrated formed structure, have assembly few, simple in structure, be easy to manufacture and design, low cost of manufacture.Because its power is large, volume is little, can make to adopt the equipment of this high frequency transformer thinner, lighter, be easier to use.
In conjunction with Figure of description, execution mode of the present utility model is made to detailed description above; but the utility model is not limited to the above-described embodiment and examples; on the basis based on inventive concept of the present utility model; above-mentioned execution mode of the present utility model is carried out to various variations, amendment, replacement or modification, all fall into protection range of the present utility model.
Claims (4)
1. a high frequency transformer, comprise primary coil (2), secondary coil (3), it is characterized in that, also comprise a LM magnetic core (4) of band magnetic core intermediolateral column (6), the 2nd LM magnetic core (5) of band magnetic core intermediolateral column (6), bobbin (1), described bobbin (1) comprises winding slot (101), be arranged on the first magnetic core mount pad (102) of winding slot (101) upside, be arranged on the second magnetic core mount pad (103) of winding slot (101) downside, one end of described the second magnetic core mount pad (103) has the first U-shaped groove (106) of up/down perforation, the second magnetic core mount pad (103) bottom of described the first U-shaped groove (106) both sides is provided with stitch (104), described bobbin (1) is provided with the magnetic core hole (105) of up/down perforation along axis direction, described magnetic core hole (105) and magnetic core intermediolateral column (6) structure for cooperatively interacting, it is upper that a described LM magnetic core (4) is arranged on bobbin (1) by the first magnetic core mount pad (102) and magnetic core hole (105), and described the 2nd LM magnetic core (4) is arranged on bobbin (1) by the second magnetic core mount pad (102) and magnetic core hole (105), it is upper that described primary coil (2), secondary coil (3) are all wound on winding slot (101), and the lead-out wire of described secondary coil (3) is through the first U-shaped groove (106) electrical connection stitch (104).
2. a kind of high frequency transformer according to claim 1, it is characterized in that, described bobbin (1) is the integrated formed structure being made up of winding slot (101), the first magnetic core mount pad (102), the second magnetic core mount pad (103).
3. a kind of high frequency transformer according to claim 1, it is characterized in that, described the first magnetic core mount pad (102), also comprise two circular orientation pieces (107), described circular orientation piece (107) is and is symmetrically arranged, and is arranged on the upper side of the first magnetic core mount pad (102) of magnetic core hole (105) opening part.
4. a kind of high frequency transformer according to claim 3, is characterized in that, is provided with the second U-shaped groove (108) of up/down perforation on the first magnetic core mount pad (102) of described circular orientation piece (107) internal ring portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229188.2U CN203871105U (en) | 2014-05-06 | 2014-05-06 | High-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229188.2U CN203871105U (en) | 2014-05-06 | 2014-05-06 | High-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871105U true CN203871105U (en) | 2014-10-08 |
Family
ID=51652030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229188.2U Expired - Fee Related CN203871105U (en) | 2014-05-06 | 2014-05-06 | High-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871105U (en) |
-
2014
- 2014-05-06 CN CN201420229188.2U patent/CN203871105U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Ling Chuanbao rock Electronic Science and Technology Co., Ltd. Assignor: GUANG'AN XINYV ELECTRONIC CO., LTD. Contract record no.: 2015510000047 Denomination of utility model: Winding method for high-frequency transformer winding and high-frequency transformer Granted publication date: 20141008 License type: Exclusive License Record date: 20150522 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20190506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |