CN217306282U - Vertical transformer - Google Patents
Vertical transformer Download PDFInfo
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- CN217306282U CN217306282U CN202221045063.5U CN202221045063U CN217306282U CN 217306282 U CN217306282 U CN 217306282U CN 202221045063 U CN202221045063 U CN 202221045063U CN 217306282 U CN217306282 U CN 217306282U
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Abstract
The utility model provides a vertical transformer, it includes magnetic core, lead wire seat, skeleton and the solenoid that has the cavity, and the lead wire seat is equipped with a plurality of electrodes, and the solenoid includes primary and secondary coil, and primary includes a plurality of primary, and the both ends of the leading-out terminal of each primary are connected electrically respectively in two of them electrodes of lead wire seat; the secondary coils each comprise a plurality of secondary windings, and the secondary windings comprise a first winding and a second winding; the first wire outlet end of the first winding and the first wire outlet end of the second winding are electrically connected with the other two electrodes of the wire holder respectively; the second wire outlet end of the first winding and the second wire outlet end of the second winding extend out of the cavity from the wire coil and are at least partially exposed out of the magnetic core to form two flying wires for connecting with an external circuit board. The utility model discloses a vertical transformer can directly be qualified for the next round of competitions and connect, small and easy to use.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a be applied to switching power supply's vertical transformer.
Background
With the continuous development of society, the variety of electrical equipment is also increasing, and different electrical equipment may need different operating voltages. The transformer is a circuit transformation device, and can reduce the voltage of a large voltage or increase the voltage of a small voltage through the transformer to adapt to the operation of different electrical equipment.
The general main components of the related art transformer are a primary coil, a secondary coil, an iron core, and a lead frame. The wire outlet end of the primary coil and the wire outlet end of the secondary coil are both electrically connected with the wire lead seat and then welded with the circuit board through the pins of the wire lead seat so as to integrate the transformer and the circuit board.
However, in order to output a large current to be applied to the switching power supply circuit and to match the output of the transformer with the layout of the circuit board, the conventional transformer has a large wire diameter of the secondary coil, so that the winding of the secondary coil needs to be matched with the pins of the lead socket, and when the number of the secondary windings of the transformer is large, the number of the pins of the lead socket is limited. Meanwhile, the transformer is limited by the layout wiring of the circuit board, so that the transformer is large in size, the layout wiring of the circuit board is limited, and the application of the transformer is limited.
Therefore, a new transformer needs to be designed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be less than to above correlation technique, the utility model provides a can directly be qualified for the next round of competitions and connect, small and easy to use vertical transformer.
In order to solve the above technical problem, an embodiment of the present invention provides a vertical transformer, which includes a magnetic core having a cavity, a lead seat fixed to the magnetic core, a skeleton fixed to the magnetic core, and a coil wound around the skeleton, wherein at least a portion of the skeleton and the coil are accommodated in the cavity; the lead seat is arranged outside the cavity and provided with a plurality of electrodes, and the electrodes are exposed out of the surface of the lead seat; the coil comprises a primary coil and a secondary coil, the primary coil comprises a plurality of primary windings, and two ends of a wire outlet end of each primary winding are electrically connected to two electrodes of the lead base respectively; the secondary coils each comprise a plurality of secondary windings, and the secondary windings comprise a first winding and a second winding; the first wire outlet end of the first winding and the first wire outlet end of the second winding are respectively and electrically connected to the other two electrodes of the lead base; the second outlet end of the first winding and the second outlet end of the second winding extend to the outside of the cavity through the coil and at least partially expose out of the magnetic core to form two flying leads for connecting an external circuit board.
Preferably, the magnetic core includes an upper magnetic core and a lower magnetic core connected with the upper magnetic core to jointly enclose the cavity, and both the second wire outlet end of the first winding and the second wire outlet end of the second winding extend outwards from the same side of the cavity close to the upper magnetic core.
Preferably, the two lead wire seats are arranged on two opposite sides of the lower magnetic core, and the outlet end of the primary winding and the outlet end of the secondary winding are respectively and electrically connected with one corresponding lead wire seat.
Preferably, the wire diameter of the secondary winding is larger than that of the primary winding.
Preferably, the primary winding and the secondary winding extend in contact with each other or with a fixed interval therebetween.
Preferably, the plurality of primary windings and the plurality of secondary windings are isolated from each other by an insulating adhesive paper.
Preferably, the secondary winding is multi-strand wound.
Preferably, the solenoid also includes two sleeves, two the sleeve is located respectively the second leading-out terminal of first winding and the second leading-out terminal of second winding.
Preferably, the lead frame further comprises a plurality of pins for electrical connection with the circuit board, and each of the electrodes is electrically connected with a corresponding one of the pins.
Preferably, the magnetic core is rectangular.
Compared with the prior art, the vertical transformer of the utility model arranges the lead base outside the magnetic core, and then electrically connects the first wire outlet end of the first winding and the first wire outlet end of the second winding to the other two electrodes of the lead base respectively; and the second wire outlet end of the first winding and the second wire outlet end of the second winding are respectively extended out of the cavity from the wire coil and at least partially exposed out of the magnetic core to form two flying wires for connecting with an external circuit board. This structure makes the second leading-out terminal of first winding with the second leading-out terminal of second winding forms two fly wires to make the coiling of primary coil and secondary coil need not receive the restriction of being qualified for the next round of competitions of secondary coil, the second leading-out terminal of first winding with the second leading-out terminal of second winding need not be connected to the pedestal, consequently make the solenoid is small, thereby realizes the utility model discloses a vertical transformer is small to under the volume condition that does not increase vertical transformer, can realize multiplexed output or heavy current output, and because export two fly wires, directly be qualified for the next round of competitions connecting circuit board, make the territory wiring of circuit board not receive the influence, thereby make the utility model discloses a vertical transformer easy to use.
Description of the drawings: the present invention will be described in detail with reference to the accompanying drawings. The foregoing and other aspects of the invention will become more apparent and more readily appreciated from the following detailed description, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic structural diagram of the vertical transformer of the present invention.
In the figure, 1, a magnetic core, 10, a cavity, 11, an upper magnetic core, 12, a lower magnetic core, 2, a lead base, 21, a pin, 3, a coil, 4 and a sleeve.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The description of the embodiments/examples set forth herein is provided to illustrate the principles of the invention and is intended to be exemplary and explanatory only and should not be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention.
The utility model provides a vertical transformer 100.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vertical transformer 100 according to the present invention.
Specifically, the vertical transformer 100 includes a magnetic core 1 having a cavity 10, a lead frame 2 fixed to the magnetic core 1, a bobbin (not shown) fixed to the magnetic core 1, and a coil 3 wound around the bobbin.
In the present embodiment, the magnetic core 1 includes an upper magnetic core 11 and a lower magnetic core 12 connected to the upper magnetic core 11 to jointly enclose the cavity 10. The magnetic core 1 is formed by assembling the upper magnetic core 11 and the lower magnetic core 12 which are separated into a whole, and the vertical transformer 100 is beneficial to production and manufacturing. Of course, the core 1 is not limited thereto, and may be integrally formed.
In the present embodiment, the magnetic core 1 has a rectangular shape. The rectangular magnetic core 1 is convenient to produce and manufacture.
The skeleton and the coil 3 are at least partially housed in the cavity 10.
The lead frame 2 includes a plurality of electrodes and a plurality of leads 21 disposed outside the cavity 10.
The electrodes are exposed on the surface of the lead frame 2. The electrode is used for being electrically connected with the wire outlet end of the coil 3.
The pins 21 are used for electrical connection with an external circuit board. Each of the electrodes is electrically connected to a corresponding one of the leads 21. The pins 21 are also used to fix the vertical transformer 100 to a circuit board.
The coil package 3 comprises a primary coil (not shown) and a secondary coil (not shown). The primary coil is used for connecting input power voltage, the secondary coil is used for connecting output power voltage, and the transformer is connected to the electrical equipment to realize a voltage transformation function.
The primary coil includes a plurality of primary windings. Two ends of the outlet end of each primary winding are respectively and electrically connected with two of the electrodes of the lead base 2.
The secondary coils each comprise a plurality of secondary windings, and the secondary windings comprise a first winding and a second winding; the first wire outlet end of the first winding and the first wire outlet end of the second winding are electrically connected to the other two electrodes of the lead base 2 respectively. The second wire outlet end a of the first winding and the second wire outlet end B of the second winding extend from the coil 3 to the outside of the cavity 10 and at least partially expose out of the magnetic core 1 to form two flying wires for connecting with an external circuit board. Thereby make the coiling of primary and secondary coil need not receive the restriction of being qualified for the next round of competitions of secondary coil, the second leading-out terminal A of first winding with the second leading-out terminal B of second winding need not be connected to the lead wire seat 2, consequently make solenoid 3's small, thereby realize the utility model discloses a vertical transformer 100 is small to under the volume condition that does not increase vertical transformer 100, can realize multichannel output or heavy current output, and because export two flying leads, directly be qualified for the next round of competitions connecting circuit board for the territory wiring of circuit board does not receive the influence, thereby makes the utility model discloses a vertical transformer 100 easily uses.
In this embodiment, the second wire outlet a of the first winding and the second wire outlet B of the second winding both extend outward from the same side of the cavity 10 close to the upper magnetic core 1. The structure is beneficial to the reliability of flying wires, the winding process can be simplified, the outgoing wires of the first winding and the second winding are connected to the circuit board, and the over-current capability of the outgoing wires of the wire package 3 to the circuit board can be improved.
In this embodiment, the wire diameter of the secondary winding is larger than the wire diameter of the primary winding. The structure is beneficial to the secondary winding to output large current.
In this embodiment, the primary winding and the secondary winding extend in contact with each other or with a fixed interval therebetween. The primary winding and the secondary winding may be wound in a sandwich of primary and secondary windings. Therefore, under the condition of not increasing the volume of the transformer, the large-current high-power output or the multi-path output can be realized, the limitation of the circuit board layout wiring in the small-volume power supply equipment can be realized, the wiring area of the circuit board layout wiring can be saved, and the wiring line can be simplified.
In this embodiment, the secondary winding is multi-strand wound. The secondary winding is wound by the stranded wires, so that high-current high-power output or multi-path output can be realized.
In this embodiment, the lead wire holders 2 include two lead wire holders 2, the two lead wire holders 2 are disposed on two opposite sides of the lower magnetic core 1, and the outlet end of the primary winding and the outlet end of the secondary winding are electrically connected to a corresponding one of the lead wire holders 2 respectively. The arrangement of the two lead wire seats 2 is beneficial to the mutual noninterference of the outlet ends of the primary winding and the outlet ends of the secondary winding, and the reliability is improved.
For improved reliability, the coil 3 further comprises two sleeves 4. The two sleeves 4 are respectively sleeved on the second wire outlet end a of the first winding and the second wire outlet end B of the second winding. In this embodiment, the sleeve 4 is an iron Buddha cage sleeve. The length of the sleeve 4 is less than 100 mm, and the second outlet end a of the first winding and the second outlet end B of the second winding can be dipped with 5-10 mm of tin for convenient welding, so as to be welded with a reserved pad on a circuit board, thereby simplifying layout wiring from the vertical transformer 100 to the circuit board, and enabling the vertical transformer 100 to be easy to use and have wide application.
Compared with the prior art, the vertical transformer of the utility model arranges the lead base outside the magnetic core, and then electrically connects the first wire outlet end of the first winding and the first wire outlet end of the second winding to the other two electrodes of the lead base respectively; and the second wire outlet end of the first winding and the second wire outlet end of the second winding are respectively extended out of the cavity from the wire coil and at least partially exposed out of the magnetic core to form two flying wires for connecting with an external circuit board. This structure makes the second leading-out terminal of first winding with the second leading-out terminal of second winding forms two fly lines to make the coiling of primary and secondary coil need not receive the restriction of being qualified for the next round of competitions of secondary coil, the second leading-out terminal of first winding with the second leading-out terminal of second winding need not be connected to the pedestal, consequently make the solenoid is small, thereby realizes the utility model discloses a vertical transformer is small to under the volume condition that does not increase vertical transformer, can realize multichannel output or heavy current output, and because export two fly lines, directly be qualified for the next round of competitions connecting circuit board, make the territory wiring of circuit board not receive the influence, thereby make the utility model discloses a vertical transformer is easy to use.
Claims (10)
1. A vertical transformer is characterized by comprising a magnetic core with a cavity, a lead base fixed on the magnetic core, a framework fixed on the magnetic core and a coil wound on the framework, wherein at least parts of the framework and the coil are accommodated in the cavity; the lead seat is arranged outside the cavity and provided with a plurality of electrodes, and the electrodes are exposed out of the surface of the lead seat; the coil comprises a primary coil and a secondary coil, the primary coil comprises a plurality of primary windings, and two ends of a wire outlet end of each primary winding are electrically connected to two electrodes of the lead base respectively; the secondary coils each comprise a plurality of secondary windings, and the secondary windings comprise a first winding and a second winding; the first wire outlet end of the first winding and the first wire outlet end of the second winding are respectively and electrically connected to the other two electrodes of the lead base; the second outlet end of the first winding and the second outlet end of the second winding extend to the outside of the cavity through the coil and at least partially expose out of the magnetic core to form two flying leads for connecting an external circuit board.
2. The vertical transformer of claim 1, wherein the core comprises an upper core and a lower core connected to the upper core to define the cavity, and wherein the second outlet of the first winding and the second outlet of the second winding both extend outwardly from the cavity on a same side of the upper core.
3. The vertical transformer of claim 2, wherein the two terminal blocks are disposed on opposite sides of the lower core, and the outlet of the primary winding and the outlet of the secondary winding are electrically connected to a respective one of the terminal blocks.
4. The vertical transformer according to claim 1, wherein the wire diameter of the secondary winding is larger than the wire diameter of the primary winding.
5. Vertical transformer according to claim 1, characterised in that the primary winding and the secondary winding extend in contact with each other or are arranged at a fixed distance from each other.
6. Vertical transformer according to claim 1, characterized in that the plurality of primary windings and the plurality of secondary windings are mutually isolated by an insulating glue.
7. The vertical transformer according to claim 1, wherein the secondary winding is multi-strand wound.
8. The vertical transformer of claim 1, wherein the coil further comprises two sleeves, and the two sleeves are respectively sleeved on the second outlet end of the first winding and the second outlet end of the second winding.
9. The vertical transformer of claim 1, wherein the lead frame further comprises a plurality of pins for electrical connection to the circuit board, each of the electrodes being electrically connected to a respective one of the pins.
10. The vertical transformer according to claim 1, wherein the magnetic core is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045063.5U CN217306282U (en) | 2022-04-29 | 2022-04-29 | Vertical transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221045063.5U CN217306282U (en) | 2022-04-29 | 2022-04-29 | Vertical transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217306282U true CN217306282U (en) | 2022-08-26 |
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ID=82917508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221045063.5U Active CN217306282U (en) | 2022-04-29 | 2022-04-29 | Vertical transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217306282U (en) |
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2022
- 2022-04-29 CN CN202221045063.5U patent/CN217306282U/en active Active
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