CN103474201B - A kind of pulse transformer and manufacture method thereof - Google Patents
A kind of pulse transformer and manufacture method thereof Download PDFInfo
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- CN103474201B CN103474201B CN201310350438.8A CN201310350438A CN103474201B CN 103474201 B CN103474201 B CN 103474201B CN 201310350438 A CN201310350438 A CN 201310350438A CN 103474201 B CN103474201 B CN 103474201B
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Abstract
The invention discloses pulse transformer and manufacture method thereof, pulse transformer comprises primary coil, secondary coil, the first step connected successively, first center pillar, second step, second center pillar and the 3rd step, first step is provided with the first primary coil electrode and first level coil electrode, second step is provided with the second primary coil electrode and second subprime coil electrode, 3rd step is provided with the 3rd primary coil electrode and third time level coil electrode, primary coil and secondary coil are wound on the first center pillar and the second center pillar, first elementary contact of primary coil, second elementary contact and the 3rd elementary contact respectively with the first primary coil electrode, second primary coil electrode and the electrical connection of the 3rd primary coil electrode, first level contact of secondary coil, second subprime contact and third time level contact respectively with first level coil electrode, second subprime coil electrode and third time level coil electrode electrical connection.This pulse transformer has comparatively low-loss and manufactures simpler.
Description
[technical field]
The present invention relates to pulse transformer field, be specifically related to a kind of pulse transformer and manufacture method thereof.
[background technology]
Along with interface in recent years and digital television techniques development, lan interfaces (LANInterface) is configured at the audio and video equipments such as LCD TV by as standarized component, and the electronic equipment such as PC.Network transformer (NetworkTransformer) is as the critical component (for isolated from power and noise suppression) of lan interfaces, and its stable quality and availability also become more and more important.An elementary cell of network transformer comprises a pulse transformer (PulseTransformer) and a common-mode filter (CommonModeFilter).Traditional pulse transformer is generally made up of ferrite bead and the main be wrapped on magnet ring, secondary coil, the mutual high-insulation of major/minor level coil.Signal transmissions is realized by the electromagnetic induction between two-stage coil, and by major/minor level turns ratio adjustment input/output voltage.But one is due to legacy network transformer coiling on ring type magnetic core, be difficult to adopt automation equipment to produce (generally all being made by manual mode), process management and control difficulty, product quality is difficult to be guaranteed; Two is adopt magnet ring due to legacy network transformer and make by hand, limits by manufacturing process, and the size of product is general comparatively large, slimming difficulty.
Current, TDK adopts automatic winding manufacture technics network transformer comparative maturity.TDK product design overall structure is comparatively compacted, and can ensure the causing property after wire coiling preferably, also ensure that the good coupled characteristic of product equally; But its winding mode is comparatively complicated, machine implements comparatively difficulty, adopts 4 wires, at twice reverse doubling coiling, is connected to (detailed content is shown in TDK pulse transformer patent: US2010/0109827A1) on 6 electrodes.
Another is the design of 8 electrodes, adopts 4 wires, equally at twice reverse doubling coiling, is connected on 8 electrodes, just by wherein two electrode short circuits at product two ends.This kind of method for designing requires higher equipment fulfillment capability equally, and needs to propose new requirement to the pcb board pad design of product itself or application end.
[summary of the invention]
In order to overcome the deficiencies in the prior art, the invention provides a kind of pulse transformer and manufacture method thereof, to make, when ensureing the quality of pulse transformer, to manufacture pulse transformer simpler.
A kind of pulse transformer, comprise first step, first center pillar, second step, primary coil and secondary coil, also comprise the second center pillar and the 3rd step, described first step, first center pillar, second step, second center pillar is connected successively with the 3rd step, described first step is provided with the first primary coil electrode and first level coil electrode, described second step is provided with the second primary coil electrode and second subprime coil electrode, described 3rd step is provided with the 3rd primary coil electrode and third time level coil electrode, described first primary coil electrode, second primary coil electrode and the 3rd primary coil electrode are in the side of the first center pillar or the second center pillar place rectilinear direction, described first level coil electrode, second subprime coil electrode with third time level coil electrode at the opposite side relative with described side of the first center pillar or the second center pillar place rectilinear direction, described primary coil is wound on the first center pillar and the second center pillar successively, described secondary coil is wound on the first center pillar and the second center pillar successively, first elementary contact of described primary coil, second elementary contact and the 3rd elementary contact respectively with the first primary coil electrode, second primary coil electrode and the electrical connection of the 3rd primary coil electrode, first level contact of described secondary coil, second subprime contact and third time level contact respectively with first level coil electrode, second subprime coil electrode and third time level coil electrode electrical connection.
The first groove is provided with between described first primary coil electrode and first level coil electrode, be provided with the second groove between described second primary coil electrode and second subprime coil electrode, between described 3rd primary coil electrode and third time level coil electrode, be provided with the 3rd groove.
Described first center pillar and the second center pillar are on same straight line, and described first step, second step are identical with the height that the 3rd step exceeds the first center pillar or the second center pillar.
Described primary coil is identical with the coiling direction of secondary coil.
Described first center pillar and the second center pillar is wound on successively after described primary coil is mutually stranded with secondary coil.
Present invention also offers a kind of manufacture method of pulse transformer, described pulse transformer comprises the first wire and skeleton, described skeleton comprises: the first step connected successively, the first center pillar, second step, the second center pillar and the 3rd step, and first step, second step and the 3rd step described in the side of the first center pillar or the second center pillar place rectilinear direction are respectively equipped with the third electrode of the first electrode of the first wire, the second electrode of the first wire and the first wire;
Described manufacture method comprises the steps:
One end of the first wire through First Line mouth is fixed on relatively the side of the first electrode of described first wire;
First Line mouth is moved towards the opposite side of the first electrode of the first wire, the first wire is drawn from First Line mouth, and make the first wire stride across the first electrode of described first wire;
Rotate described skeleton, described First Line mouth moved towards the second electrode of the first wire simultaneously, make the first Wire-wound at described first center pillar;
Mobile First Line mouth makes the first wire draw from First Line mouth, and makes the first wire stride across the second electrode of described first wire;
First wire is electrically connected with the first electrode of the first wire;
First wire is electrically connected with the second electrode of the first wire;
Rotate described skeleton, described First Line mouth moved towards the third electrode of the first wire simultaneously, make the first Wire-wound at described second center pillar;
Mobile First Line mouth makes the first wire draw from First Line mouth, and makes the first wire stride across the third electrode of described first wire;
First wire is electrically connected with the third electrode of the first wire.
Described pulse transformer also comprises the second wire, and first step, second step and the 3rd step described in the opposite side relative with described side of the first center pillar or the second center pillar place rectilinear direction are also respectively equipped with the third electrode of the first electrode of the second wire, the second electrode of the second wire and the second wire;
Described method also comprises the steps:
One end of the second wire through the second line mouth is fixed on relatively the side of the first electrode of described second wire;
Second line mouth is moved towards the opposite side of the first electrode of the second wire, the second wire is drawn from the second line mouth, and make the second wire stride across the first electrode of described second wire;
Described First Line mouth and the second line mouth are synchronously moved towards the second electrode of the first wire and the second electrode of the second wire respectively, makes the first wire and the second wire be wound on described first center pillar simultaneously;
Mobile second line mouth makes the second wire draw from the second line mouth, and makes the second wire stride across the second electrode of described second wire;
Second wire is electrically connected with the first electrode of the second wire;
Second wire is electrically connected with the second electrode of the second wire;
Described First Line mouth and the second line mouth are synchronously moved towards the third electrode of the first wire and the third electrode of the second wire respectively, makes the first wire and the second wire be wound on described second center pillar simultaneously;
Mobile second line mouth makes the second wire draw from the second line mouth, and makes the second wire stride across the third electrode of described second wire;
Second wire is electrically connected with the third electrode of the second wire.
After described first wire strides across the first electrode of described first wire and described second wire strides across the first electrode of described second wire, by mutually stranded with the second wire for described first wire;
After described first wire strides across the second electrode of described first wire and described second wire strides across the second electrode of described second wire, by mutually stranded with the second wire for described first wire.
The first groove is provided with between described first primary coil electrode and first level coil electrode, be provided with the second groove between described second primary coil electrode and second subprime coil electrode, between described 3rd primary coil electrode and third time level coil electrode, be provided with the 3rd groove;
The surface of described first wire and the second wire is all coated with insulating material;
After described first wire strides across the second electrode of described first wire and the second wire strides across the second electrode of described second wire, and before described First Line mouth and the second line mouth synchronously move towards the third electrode of the first wire and the third electrode of the second wire respectively, comprise the steps:
At the first electrode place of the first wire, by hot pressing, the insulating material on the first wire is departed from, and make the first wire weld mutually with the first electrode of the first wire and form electrical connection;
At the second electrode place of the first wire, by hot pressing, the insulating material on the first wire is departed from, and make the first wire weld mutually with the second electrode of the first wire and form electrical connection;
At the first electrode place of the second wire, by hot pressing, the insulating material on the second wire is departed from, and make the second wire weld mutually with the first electrode of the second wire and form electrical connection;
At the second electrode place of the second wire, by hot pressing, the insulating material on the second wire is departed from, and make the second wire weld mutually with the second electrode of the second wire and form electrical connection.
The invention has the beneficial effects as follows: pulse transformer of the present invention is simpler than the manufacture of the pulse transformer of prior art, in addition, due to the first wire and the second wire synchronous parallel or close to being wound on skeleton abreast, or be wound on skeleton after the first wire is mutually stranded with the second wire, thus make can keep good consistency between the first wire and the second wire, coupling coefficient between the winding that first wire is formed and the winding that the second wire is formed is higher, be more conducive to the transmission of the differential signal through this pulse transformer, thus make this pulse transformer have more low-loss superiority.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the skeleton of the pulse transformer of an embodiment of the present invention;
Fig. 2-1 is one of them step schematic diagram of the manufacture method of the pulse transformer of an embodiment of the present invention;
Fig. 2-2 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 2-3 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 2-4 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 2-5 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 2-6 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 2-7 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 2-1;
Fig. 3-1 is one of them step schematic diagram of the manufacture method of the pulse transformer of the another kind of embodiment of the present invention;
Fig. 3-2 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-3 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-4 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-5 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-6 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-7 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-8 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-9 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-10 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-11 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 3-12 is one of them step schematic diagram of the manufacture method of the pulse transformer shown in Fig. 3-1;
Fig. 4 is one of them step schematic diagram of the manufacture method of the pulse transformer of the another kind of embodiment of the present invention.
[embodiment]
Below with reference to accompanying drawing, specific embodiments of the invention are described in further detail.
As shown in Fig. 1 to 2-6, a kind of pulse transformer of embodiment, comprise skeleton 10, first wire S1, the second wire S2 and cover plate (or block) 11, skeleton 10 comprise connect successively first step 10a, the first center pillar 10d, second step 10b, the second center pillar 10e and the 3rd step 10c.Wherein, the first wire S1 is as secondary coil, and the second wire S2 is as primary coil, or the first wire S1 is as primary coil, and the second wire S2 is as secondary coil (being described for the latter below).
First step 10a is provided with the first primary coil electrode (first electrode of the first wire S1) E1 and first time level coil electrode (first electrode of the second wire S2) E4, second step 10b is provided with the second primary coil electrode (second electrode of the first wire S1) E2 and second subprime coil electrode (second electrode of the second wire S2) E5, the 3rd step 10c are provided with the 3rd primary coil electrode (third electrode of the first wire S1) E3 and third time level coil electrode (third electrode of the second wire S2) E6, the first groove 10a1 is provided with between first primary coil electrode E1 and first level coil electrode E4, be provided with the second groove 10b1 between second primary coil electrode E2 and second subprime coil electrode E5, between the 3rd primary coil electrode E3 and third time level coil electrode E6, be provided with the 3rd groove 10c1, first primary coil electrode E1, second primary coil electrode E2 and the 3rd primary coil electrode E3 is in the side of the first center pillar 10d or the second center pillar 10e place rectilinear direction, and first level coil electrode E4, second subprime coil electrode E5 and third time level coil electrode E6 are at the opposite side relative with above-mentioned side of the first center pillar 10d or the second center pillar 10e place rectilinear direction, primary coil S1 is wound on the first center pillar 10d and the second center pillar 10e successively, secondary coil S2 is wound on the first center pillar 10d and the second center pillar 10e successively, the surface coverage of wire insulating material, the first elementary contact S1a of primary coil S1, second elementary contact S1b and the 3rd elementary contact S1c respectively with the first primary coil electrode E1, second primary coil electrode E2 and the 3rd primary coil electrode E3 is electrically connected, first level contact S2a of secondary coil S2, second subprime contact S2b and third time level contact S2c respectively with first level coil electrode E4, second subprime coil electrode E5 and third time level coil electrode E6 electrical connection, the contact place of primary coil and secondary coil does not all have insulating material.
In preferred embodiment, the first center pillar 10d and the second center pillar 10e is on same straight line, and first step 10a, second step 10b are identical with the height that the 3rd step 10c exceeds the first center pillar 10d or the second center pillar 10e.Like this, only three of skeleton 10 step need be immersed in coating bath, namely on these steps, electrode can be plated simultaneously, and two electrodes on same step can not be caused to occur electrical connection.
Wherein, skeleton 10 is made up of the insulating material such as ferrite, pottery.The shape of the first center pillar 10d and the second center pillar 10e can be the shape such as square column, cylinder polygon post; Electrode on step can be flat surface, also can be the isomery face etc. being provided with wire grooves.Electrode is made by alloy or Ag, W, Ni, Sn etc. such as Ag-Pd, Ni-Cu.
Above-mentioned skeleton 10 is combined with cover plate or the 10f that blocks a shot and formed coil component, when being installed on circuit board by this coil component, scolding tin etc. can be utilized to be electrically connected with the electrode of circuit board by these electrodes.
In the present embodiment, primary coil S1 is identical with the coiling direction of secondary coil S2, reeling condition is identical, length is identical or close.
The embodiment 1 of the manufacture method of pulse transformer
As shown in Fig. 1 to Fig. 2-6, this be the first wire S1 and the second wire S2 synchronous and around embodiment.
Step 1, as shown in Fig. 2-1, first prepares the first wire S1 and the second wire S2, and is each passed through First Line mouth N1 and the second line mouth N2.Then, the other end of the first wire S1 and the second wire S2 is separately fixed on two chucks of the first stationary fixture M1 and the second stationary fixture M2, with the side making this end of the first wire S1 relatively be fixed on the first electrode E1 of the first wire S1, and this end of the second wire S2 is made relatively to be fixed on the side of the first electrode E4 of the second wire S2.Then, (namely First Line mouth N1 and the second line mouth N2 all moves along X-axis negative direction and Y-axis negative (or just) direction, First Line mouth N1 moves towards the opposite side of the first electrode E1 of the first wire S1, and the second line mouth N2 moves towards the opposite side of the first electrode E4 of the second wire S2) (in line mouth moving process, wire can be drawn from corresponding line mouth), stride across to make the first wire S1 and contact the first electrode E1 of the first wire, second wire S2 is striden across and contacts the first electrode E4 of the second wire, thus complete the positioning operation of the first wire S1 and the second wire S2 respectively on the first electrode E1 and the first electrode E4.
Step 2, as shown in Fig. 2-2, by the first wire S1 and the second wire S2 around to the first center pillar 10d.After completing the positioning operation of the first wire S1 and the second wire S2 respectively on the first electrode E1 and the first electrode E4, skeleton 10 counterclockwise (or clockwise) direction at the uniform velocity rotates, First Line mouth N1 and the second line mouth N2 all at the uniform velocity moves along X-axis negative direction simultaneously, move respectively to the second electrode E2 of the first wire and the second electrode E5 of the second wire, thus the first wire S1 and the second wire S2 is wound on the first center pillar 10d of skeleton 10.Then, skeleton 10 stops operating, First Line mouth N1 and the second line mouth N2 all moves along X-axis negative direction and Y-axis negative (or just) direction, first wire S1 is striden across and contact the first wire the second electrode E2, the second wire S2 is striden across and contacts the second electrode E5 of the second wire, thus complete the positioning operation of the first wire S1 and the second wire S2 on the second electrode E2 and the second electrode E5.
Step 3, as Figure 2-3, utilize thermal compression welding fixture, the first contact S1a of wire first wire S1 and the first electrode E1 is heated, applies pressure along Z-direction simultaneously, utilize the heat that thermal compression welding fixture produces, burn the insulating barrier on the first contact S1a of the first wire S1, and the tin layers on partial melting first electrode E1, make the conductor part of the coated first contact S1a of the tin of melting, thus the first contact S1a is electrically connected with the first electrode E1; Meanwhile, under heat and pressure synergy, the first wire S1 contacted with the first electrode E1 is crushed.Equally, according to identical method, make that the first contact S2a of the second wire S2 is electrically connected with the first electrode E4, the second contact S1b of the first wire S1 is electrically connected with the second electrode E2, the second contact S2b of the second wire S2 is electrically connected with the second electrode E5.
Step 4, as in Figure 2-4, by the first wire S1 and the second wire S2 around to the second center pillar 10e.After the part-structure of pulse transformer is as Figure 2-3 formed, skeleton 10 counterclockwise (or clockwise direction) at the uniform velocity rotates, First Line mouth N1 and the second line mouth N2 all at the uniform velocity moves along X-axis negative direction simultaneously, namely move respectively to the third electrode E3 of the first wire and the third electrode E6 of the second wire, thus the first wire S1 and the second wire S2 is wound on the second center pillar 10e of skeleton 10.Then, skeleton 10 stops operating, First Line mouth N1 and the 2nd N2 all moves along X-axis negative direction and Y-axis negative (or just) direction, first wire S1 striden across and contacts third electrode E3, make the second wire S2 stride across and contact third electrode E6, thus completing the first wire S1 and the positioning operation of the second wire S2 on third electrode E3 and third electrode E6.
Step 5, as shown in Figure 2-5, adopt and be electrically connected identical method with by the first wire S1 with the first electrode E1, the 3rd contact S2c making the 3rd contact S1c of the first wire S1 be electrically connected, make the second wire S2 with third electrode E3 is electrically connected with third electrode E6.
Step 6, adopts the pulse transformer of above manufacture method, after completing coiling, welding, by assembling procedure, skeleton 10 and cover plate (as shown in figures 2-6) or block a shot (as illustrated in figs. 2-7) is combined.
Wherein, after the first wire S1 strides across the first electrode E1, in order to by above-mentioned method, the first wire S1 can be electrically connected with the first electrode E1, but, after completing the positioning operation of the first wire S1 and the second wire S2 on the second electrode E2 and the second electrode E5, unification makes the first wire S1 be electrically connected with the first electrode E1 and the second electrode, the second wire S2 is electrically connected with the first electrode E4 and the second electrode E5 again, like this, thermal compression welding fixture just can complete the operation to four electrodes at a station, greatly saves efficiency.
The embodiment 2 of the manufacture method of pulse transformer
As shown in Fig. 3-1 to Fig. 3-12, this is the embodiment of the first wire S1 and the second wire S2 double-deck coiling at twice.
Step 1, as shown in figure 3-1, first prepares the first wire S1, and through First Line mouth N1.Then, the other end of the first wire S1 is fixed on the chuck of the first stationary fixture M1, with the side making this end of the first wire S1 relatively be fixed on the first electrode E1 of the first wire S1.Then, (namely First Line mouth N1 moves along X-axis negative direction and Y-axis negative (or just) direction, First Line mouth N1 moves towards the opposite side of the first electrode E1 of the first wire S1), first wire S1 striden across and contacts the first electrode E1, thus completing the positioning operation of the first wire S1 on the first electrode E1.
Step 2, as shown in figure 3-2, by the first wire S1 around to the first center pillar 10d.After the part-structure of pulse transformer is as shown in figure 3-2 formed, skeleton 10 counterclockwise (or clockwise) direction at the uniform velocity rotates, First Line mouth N1 at the uniform velocity moves along X-axis negative direction simultaneously, the second electrode E2 to the first wire moves, thus the first wire S1 is wound on the first center pillar 10d of skeleton 10.Then, skeleton 10 stops operating, and First Line mouth N1 moves along X-axis negative direction and Y-axis negative (or just) direction, the first wire S1 is striden across and contacts the second electrode E2 of the first wire, thus completing the positioning operation of the first wire S1 on the second electrode E2.
Step 3, as shown in Fig. 3-3, utilize thermal compression welding fixture, the first contact S1a of the first wire S1 and the first electrode E1 is heated, applies pressure along Z-direction simultaneously, utilize the heat that thermal compression welding fixture produces, burn the insulating barrier on the first contact S1a of the first wire S1, and the tin layers on partial melting first electrode E1, make the conductor part of the coated first contact S1a of the tin of melting, thus the first contact S1a is electrically connected with the first electrode E1; Meanwhile, under heat and pressure synergy, the first wire S1 contacted with the first electrode E1 is crushed.Equally, according to identical method, the second contact S1b of the first wire S1 is electrically connected with the second electrode E4.
Step 4, as shown in Figure 3-4, by the first wire S1 around to the second center pillar 10e.After the second contact S1b of the first wire S1 is fixed on the second electrode E2, skeleton 10 counterclockwise (or clockwise) direction at the uniform velocity rotates, First Line mouth N1 at the uniform velocity moves along X-axis negative direction simultaneously, First Line mouth N1 is moved to the third electrode E3 of the first wire, thus the first wire S1 is wound on the second center pillar 10e of skeleton 10.Then, skeleton 10 stops operating, and First Line mouth N1 moves along X-axis negative direction and negative (just) direction of Y-axis, makes the first wire S1 stride across and contact third electrode E3, thus completes the positioning operation of the first wire S1 on third electrode E3.
Step 5, as in Figure 3-5, adopts and is electrically connected identical method with by the first wire S1 with the first electrode E1, the 3rd contact S1c of the first wire S1 is electrically connected with third electrode E3.
Step 6, as seen in figures 3-6, prepares the second wire S2, and through First Line mouth N1.Then, the other end of the second wire S2 is separately fixed on the chuck of the first stationary fixture M1, with the side making this end of the second wire S2 relatively be fixed on the first electrode E4 of the second wire S2.Then, (namely First Line mouth N1 moves along X-axis negative direction and negative (just) direction of Y-axis, First Line mouth N1 moves towards the opposite side of the first electrode E4 of the second wire S2), the second wire S2 striden across and contacts the first electrode E4, thus completing the positioning operation of the second wire S2 on the first electrode E4.
Step 7, as shown in fig. 3 to 7, by the second wire S2 around to the first center pillar 10d.After the second wire S2 locates on the first electrode E4, skeleton 10 counterclockwise (or clockwise) direction at the uniform velocity rotates, First Line mouth N1 at the uniform velocity moves along X-axis negative direction simultaneously, and the second electrode E5 to the second wire moves, thus the second wire S2 is wound on the second center pillar 10d of skeleton 10.Then, skeleton 10 stops operating, and First Line mouth N1 moves, the second wire S2 striden across and contacts the second electrode E5 along X-axis negative direction and Y-axis negative (or just) direction, thus complete the positioning operation of the second wire S2 on the second electrode E5.
Step 8, as shown in figures 3-8, adopt and be electrically connected identical method with by the first wire S1 with the first electrode E1, the second contact S2b making the first contact S2a of the second wire S2 be electrically connected, make the second wire S2 with the first electrode E4 is electrically connected with the second electrode E5.
Step 9, as shown in figs. 3-9, by the second wire S2 around to the second center pillar 10e.After the second wire S2 is fixing on the second electrode E5, skeleton 10 counterclockwise (or clockwise) direction at the uniform velocity rotates, First Line mouth N1 at the uniform velocity moves along X-axis negative direction simultaneously, First Line mouth N1 is moved to the third electrode E6 of the second wire, thus the second wire S2 is wound on the second center pillar 10e of skeleton 10.Then, skeleton 10 stops operating, and First Line mouth N1 moves along X-axis negative direction and Y-axis negative (or just) direction, makes the second wire S2 stride across and contact third electrode E6, thus complete the positioning operation of the second wire S2 on third electrode E6.
Step 10, as shown in figs. 3-10, adopts and is electrically connected identical method with by the first wire S1 with its first electrode E1, the 3rd contact S2c of the second wire S2 is electrically connected with its third electrode E6.
Step 11, adopts the pulse transformer of above manufacture method, after completing coiling, welding, by assembling procedure, skeleton 10 and cover plate (as shown in Fig. 3-11) or block a shot (as shown in Fig. 3-12) is combined.
By the first wire S1(or the second wire S2) be wound up into the first center pillar 10d(or the second center pillar 10e) process in, by regulating First Line mouth N1(or the second line mouth N2) along X-axis negative direction movement velocity, and skeleton 10 (clockwise) direction velocity of rotation counterclockwise, can the spacing of continuous setup first wire S1 on skeleton 10 within the specific limits, realize coil on skeleton rare around with close around arrangement.
The embodiment 3 of the manufacture method of pulse transformer
As shown in Figure 4, it is compared with the embodiment 1 of the manufacture method of pulse transformer, and difference is:
After completing the positioning operation of the first wire S1 and the second wire S2 respectively on the first electrode E1 and the first electrode E4, after first wire S1 is stranded with the second wire S2 phase, First Line mouth N1 and the second line mouth N2 is made to move respectively to the second electrode E2 and the second electrode E5 direction again, skeleton 10 rotates simultaneously, thus the first mutually stranded wire S1 and the second wire S2 is wound on the first center pillar 10d.
Making that the second contact S1b of the first wire S1 is electrically connected with the second electrode E2, after the second contact S2b of the second wire S2 is electrically connected with the second electrode E5, after first wire S1 is stranded with the second wire S2 phase, then First Line mouth N1 and the second line mouth N2 is moved respectively to third electrode E3 and third electrode E6 direction.
If wire is thicker, the connection of wire termination and electrode generally directly can not be completed by thermal compression welding, need to be flattened near the two ends of wire by press fixture on pedestal, make its planarization, and then make it be electrically connected with corresponding electrode through thermal compression welding.Or by convincing wire casing by patient analysis on electrode, ensure that wire is in the evenness through thermal compression welding rear electrode face.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some equivalent to substitute or obvious modification can also be made, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a pulse transformer, comprise skeleton, primary coil and secondary coil, it is characterized in that: described skeleton comprises first step, first center pillar, second step, second center pillar and the 3rd step, described first step, first center pillar, second step, second center pillar is connected successively with the 3rd step, described first step is provided with the first primary coil electrode and first level coil electrode, described second step is provided with the second primary coil electrode and second subprime coil electrode, described 3rd step is provided with the 3rd primary coil electrode and third time level coil electrode, described first primary coil electrode, second primary coil electrode and the 3rd primary coil electrode are in the side of the first center pillar or the second center pillar place rectilinear direction, described first level coil electrode, second subprime coil electrode with third time level coil electrode at the opposite side relative with described side of the first center pillar or the second center pillar place rectilinear direction, described primary coil is wound on the first center pillar and the second center pillar successively, described secondary coil is wound on the first center pillar and the second center pillar successively, first elementary contact of described primary coil, second elementary contact and the 3rd elementary contact respectively with the first primary coil electrode, second primary coil electrode and the electrical connection of the 3rd primary coil electrode, first level contact of described secondary coil, second subprime contact and third time level contact respectively with first level coil electrode, second subprime coil electrode and third time level coil electrode electrical connection.
2. pulse transformer as claimed in claim 1, it is characterized in that: between described first primary coil electrode and first level coil electrode, be provided with the first groove, be provided with the second groove between described second primary coil electrode and second subprime coil electrode, between described 3rd primary coil electrode and third time level coil electrode, be provided with the 3rd groove.
3. pulse transformer as claimed in claim 1, is characterized in that: described first center pillar and the second center pillar are on same straight line, and described first step, second step are identical with the height that the 3rd step exceeds the first center pillar or the second center pillar.
4. pulse transformer as claimed in claim 1, is characterized in that: described primary coil is identical with the coiling direction of secondary coil.
5. pulse transformer as claimed in claim 1, is characterized in that: be wound on described first center pillar and the second center pillar after described primary coil is mutually stranded with secondary coil successively.
6. the manufacture method of a pulse transformer, described pulse transformer comprises the first wire and skeleton, it is characterized in that, described skeleton comprises: the first step connected successively, the first center pillar, second step, the second center pillar and the 3rd step, and first step, second step and the 3rd step described in the side of the first center pillar or the second center pillar place rectilinear direction are respectively equipped with the third electrode of the first electrode of the first wire, the second electrode of the first wire and the first wire;
Described manufacture method comprises the steps:
One end of the first wire through First Line mouth is fixed on relatively the side of the first electrode of described first wire;
First Line mouth is moved towards the opposite side of the first electrode of the first wire, the first wire is drawn from First Line mouth, and make the first wire stride across the first electrode of described first wire;
Rotate described skeleton, described First Line mouth moved towards the second electrode of the first wire simultaneously, make the first Wire-wound at described first center pillar;
Mobile First Line mouth makes the first wire draw from First Line mouth, and makes the first wire stride across the second electrode of described first wire;
First wire is electrically connected with the first electrode of the first wire;
First wire is electrically connected with the second electrode of the first wire;
Rotate described skeleton, described First Line mouth moved towards the third electrode of the first wire simultaneously, make the first Wire-wound at described second center pillar;
Mobile First Line mouth makes the first wire draw from First Line mouth, and makes the first wire stride across the third electrode of described first wire;
First wire is electrically connected with the third electrode of the first wire.
7. the manufacture method of pulse transformer as claimed in claim 6, is characterized in that:
Described pulse transformer also comprises the second wire, and first step, second step and the 3rd step described in the opposite side relative with described side of the first center pillar or the second center pillar place rectilinear direction are also respectively equipped with the third electrode of the first electrode of the second wire, the second electrode of the second wire and the second wire;
Described method also comprises the steps:
One end of the second wire through the second line mouth is fixed on relatively the side of the first electrode of described second wire;
Second line mouth is moved towards the opposite side of the first electrode of the second wire, the second wire is drawn from the second line mouth, and make the second wire stride across the first electrode of described second wire;
Described First Line mouth and the second line mouth are synchronously moved towards the second electrode of the first wire and the second electrode of the second wire respectively, makes the first wire and the second wire be wound on described first center pillar simultaneously;
Mobile second line mouth makes the second wire draw from the second line mouth, and makes the second wire stride across the second electrode of described second wire;
Second wire is electrically connected with the first electrode of the second wire;
Second wire is electrically connected with the second electrode of the second wire;
Described First Line mouth and the second line mouth are synchronously moved towards the third electrode of the first wire and the third electrode of the second wire respectively, makes the first wire and the second wire be wound on described second center pillar simultaneously;
Mobile second line mouth makes the second wire draw from the second line mouth, and makes the second wire stride across the third electrode of described second wire;
Second wire is electrically connected with the third electrode of the second wire.
8. the manufacture method of pulse transformer as claimed in claim 7, is characterized in that:
After described first wire strides across the first electrode of described first wire and described second wire strides across the first electrode of described second wire, by mutually stranded with the second wire for described first wire;
After described first wire strides across the second electrode of described first wire and described second wire strides across the second electrode of described second wire, by mutually stranded with the second wire for described first wire.
9. the manufacture method of pulse transformer as claimed in claim 7, is characterized in that:
The surface of described first wire and the second wire is all coated with insulating material;
After described first wire strides across the second electrode of described first wire and the second wire strides across the second electrode of described second wire, and before described First Line mouth and the second line mouth synchronously move towards the third electrode of the first wire and the third electrode of the second wire respectively, comprise the steps:
At the first electrode place of the first wire, by hot pressing, the insulating material on the first wire is departed from, and make the first wire weld mutually with the first electrode of the first wire and form electrical connection;
At the second electrode place of the first wire, by hot pressing, the insulating material on the first wire is departed from, and make the first wire weld mutually with the second electrode of the first wire and form electrical connection;
At the first electrode place of the second wire, by hot pressing, the insulating material on the second wire is departed from, and make the second wire weld mutually with the first electrode of the second wire and form electrical connection;
At the second electrode place of the second wire, by hot pressing, the insulating material on the second wire is departed from, and make the second wire weld mutually with the second electrode of the second wire and form electrical connection.
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| CN103745800B (en) * | 2014-01-14 | 2016-01-27 | 深圳顺络电子股份有限公司 | A kind of pulse transformer and manufacture method thereof |
| CN103779041B (en) * | 2014-02-24 | 2016-08-24 | 东莞铭普光磁股份有限公司 | A kind of pulse transformer and manufacture method thereof |
| US9715961B2 (en) | 2014-12-02 | 2017-07-25 | Tdk Corporation | Pulse transformer |
| JP6589588B2 (en) * | 2014-12-02 | 2019-10-16 | Tdk株式会社 | Pulse transformer |
| CN105244159A (en) * | 2015-10-12 | 2016-01-13 | 中山市汉仁电子有限公司 | Manufacturing method of built-in network port transformer module |
| CN106531409A (en) * | 2016-12-08 | 2017-03-22 | 东莞普思电子有限公司 | Magnetic core of transformer, network transformer and manufacturing method of network transformer |
| CN107068349B (en) * | 2017-05-03 | 2018-12-14 | 东莞普思电子有限公司 | A kind of network transformer structure and preparation method thereof |
| CN107424766A (en) * | 2017-05-12 | 2017-12-01 | 广东美信科技股份有限公司 | A kind of integrated form network filtering device |
| TWI656544B (en) * | 2018-02-27 | 2019-04-11 | 宏致電子股份有限公司 | Four-in-one network transmission pulse wafer |
| CN110581008A (en) * | 2019-09-16 | 2019-12-17 | 深圳振华富电子有限公司 | Radio frequency transformer and electric appliance |
| CN116741490A (en) * | 2023-06-29 | 2023-09-12 | 东莞顺为半导体有限公司 | Coil assembly with double-winding structure and preparation process thereof |
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| JPH0855738A (en) * | 1994-08-12 | 1996-02-27 | Murata Mfg Co Ltd | Transformer |
| CN2244244Y (en) * | 1995-06-16 | 1997-01-01 | 王坚 | Tranformer winding of switch power source |
| JP2002343642A (en) * | 2001-05-18 | 2002-11-29 | Ichiro Kato | Winding method for audio-frequency transformer |
| US7375611B1 (en) * | 2007-04-19 | 2008-05-20 | Harris Corporation | Embedded step-up toroidal transformer |
| US20090167473A1 (en) * | 2007-12-27 | 2009-07-02 | Wen-Sen Hsieh | Transformer structure |
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