TW202044289A - Filter transformer for effectively simplifying control of winding machine and enhancing production efficiency - Google Patents

Abstract

A filter transformer includes a winding body, an electrode unit disposed on the winding body, and a lead unit. The winding body includes a winding core, and first to third partitions. The first to third partitions respectively separate the winding core into a first winding portion and a second winding portion. The electrode unit includes first to eighth electrodes. The lead unit includes first to fourth leads, in which the first and second leads wind the first winding portion back and forth along a first lead winding direction, such that two ends of the first and second leads are electrically connected with the first and third electrodes and the second and fourth electrodes, respectively. A portion of the third and fourth leads winds the second winding portion along a second lead winding direction, and another portion winds the first winding portion back and forth along the first lead winding direction, such that two ends of the third and fourth leads are electrically connected with the fifth and seventh electrodes and the sixth and eighth electrodes, respectively.

Description

Filter transformer

The invention relates to a voltage transformation device, in particular to a filter voltage transformation device.

Most of the transformers installed on the printed circuit board are used for signal processing or noise filtering, so as to provide stable signal transmission on the printed circuit board traces. The main structure of this type of transformer can include a transformer element and a common mode choke. The traditional method of fabricating a transformer element and a common mode filter element is through two or more separate winding cores and It is composed of multiple enameled wires wound on the multiple winding cores. In other words, the transformer element is made of one or more separate and independent coil structures, and the common mode filter element is another or more separate and independent coils. The coil structure is made. As the coil structure increases, not only does the number of printed circuit boards increase, and the wire routing is also more complicated, which makes the production process of the entire system board more time-consuming. If there are more filter transformers to be manufactured The structure of the common mode choke will be more complicated in the winding, and the automatic machine used to perform the winding is also more complicated in control and the production efficiency is low.

Therefore, the purpose of the present invention is to provide a novel filtering and voltage transformation device that solves the problems encountered by combining an independent transformer with an independent common mode filter into a filtering and voltage transformation device, and has innovative winding structure characteristics. Filter transformer device.

Therefore, the present invention provides a filter transformer device, including a winding body, an electrode unit, and a wire unit. The winding body includes a winding core, a first separator arranged on the winding core sequentially and at intervals, A second partition, and a third partition, the first partition and the second partition separate the winding core into a first winding part, the second partition and the third partition separate the winding core Separated into a second winding part; the electrode unit includes a first electrode, a second electrode, a third electrode, a fourth electrode also arranged on the first separator, and also arranged on the second separator A fifth electrode, a sixth electrode, a seventh electrode also arranged on the third separator, and an eighth electrode; the wire unit includes a first wire, a second wire, and a third wire, And a fourth wire.

The first wire and the second wire are wound around the first winding portion in a first wire winding direction toward a first direction, and then the first wire is wound in a second direction opposite to the first direction. Around the first winding part, one end of the first wire is electrically connected to the first electrode, and the other end of the first wire is electrically connected to the third electrode; and an end of the second wire is electrically connected to the A fourth electrode, and the other end of the second wire is electrically connected to the second electrode to form a primary side inductance, wherein the winding direction of the first wire and the winding direction of the second wire are the wire unit along the first direction The defined wire winding direction.

The third wire is wound in a second wire winding direction toward a second direction, so that a part of the wire of the third wire is wound around the second winding part, and another part of the wire passes through the second partition and is wound with the first wire Winding the second winding part in the direction so that one end of the third wire is electrically connected to the seventh electrode, and the other end is electrically connected to the fifth electrode; the fourth wire is wound in the direction of the first wire toward the second Directional winding, so that a part of the fourth wire is wound around the first winding part, and another part of the wire passes through the second partition, and the second winding part is wound in the second winding direction to make the fourth wire One end is electrically connected to the sixth electrode, and the other end is electrically connected to the eighth electrode to form a secondary side inductor and a common mode filter.

The effect of the present invention is that the first wire, the second wire, the third wire, and the fourth wire are wound around the first winding part and the fourth wire in a wire winding direction that has a relative relationship. The second winding part, or one of the two winding methods of winding the first winding part and winding the second winding part back and forth, achieves the effective combination of a transformer and a common mode filter in the filtering and transforming device The printed circuit board with reduced ground should be fixedly connected to multiple independent transformers and multiple independent common mode filters. It also simplifies the wiring of the printed circuit board, and any wire of the filter transformer device All are wound with one thread to the end, which effectively simplifies the control of the winding machine and indeed improves production efficiency.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

1, a first embodiment of the filter transformer device of the present invention includes a winding body 3, an electrode unit, and a wire unit 4. The winding body 3 includes a winding core 31 and a winding core 31. A first partition 32 at one end of the winding core 31, a second partition 33 disposed at the winding core 31, and a third partition 34 disposed at the other end of the winding core 31, the second partition 33 intervening The first partition 32 and the third partition 34 are arranged at intervals on the first partition 32, the second partition 33, and the third partition 34 of the winding core 31 to divide the winding core 31 into one A first winding part 311 and a second winding part 312.

The winding body 3 can be an integrally formed iron structure, or it can be composed of the winding core 31 and three flanges that serve as the first partition 32, the second partition 33, and the third partition 34, respectively. (Flange) plate combination structure, the winding core 21 can be a strip-shaped iron core or other metal materials. In this embodiment, the winding core 31 is a strip-shaped iron core with a square cross-section, and the first separator 32. The second partition 33 and the third partition 34 are square flanges with the same size (length/width/height), and the winding body 3 is composed of the winding core 31 and the first partition 32. The second partition 33 and the third partition 34 are assembled, but not limited to this. In addition, the side area of each partition is larger than the cross-sectional area of the winding core 31.

The electrode unit includes a first electrode P1, a second electrode P2, a third electrode P3, a fourth electrode P4 also disposed on the first separator 32, and a circle also disposed on the second separator 33 A fifth electrode P5, a sixth electrode P6, a seventh electrode P7 and an eighth electrode P8 are also arranged on a peripheral surface of the third separator 34, and the peripheral surface of the first separator 32 The surface, the peripheral surface of the second separator 33, and the peripheral surface of the third separator 34 are all on the same horizontal plane for welding the first electrode P1 to the eighth electrode P8 to a system circuit board.

The wire unit 4 includes a first wire 41, a second wire 42, a third wire 43, and a fourth wire 44. Each wire has a core made of a conductive material, and a core that covers the core. In addition, the insulated outer covering part, in this embodiment, the core part of each wire is a copper wire and the insulated outer covering part is an electroplated insulator covering the copper wire, but it is not limited to this.

It is defined that one end of the winding core 31 connected to the first separator 32 is a first winding end, and the other end of the winding core 31 connected to the third separator 34 is a second winding end. The direction from the end to the second winding end is a first direction A, and the direction from the second winding end to the first winding end is a second direction B.

It is defined that both a clockwise direction and a counterclockwise direction are the winding directions of the wire looking into the first direction A.

2 and 3, one end of the first wire 41 (the one-point chain line in FIGS. 1 and 2) is electrically connected to the first electrode P1, and the second wire 42 (the solid line in FIGS. 1 and 3) One end of the first wire 41 is electrically connected to the fourth electrode P4, and the other end of the first wire 41 and the other end of the second wire 42 extend toward the first direction A and go around the first winding portion 311 in the clockwise direction. The first number of winding turns until it is adjacent to the second partition 33, and then extends in the opposite direction toward the second direction B, and the first winding part 311 is wound in the clockwise direction. The other end of a wire 41 is electrically connected to the third electrode P3, and the other end of the second wire 42 is electrically connected to the second electrode P2 to form a primary side coil inductance. It is worth mentioning that the electrical connection between the wire and the electrode may be spot welding fixed connection or through connection. In this embodiment, the electrical connection is spot welding fixed connection, but it is not limited to this.

It should be supplemented that, in order to increase the readability of the figure, the winding methods of the first wire 41 and the second wire 42 are shown separately through FIGS. 2 and 3, but in this embodiment, the The first wire 41 and the second wire 42 are wound in the same way (winded simultaneously and in the same direction) the first winding portion 311. The third wire 43 and the fourth wire 44 are also shown separately through FIGS. 4 and 5 in a similar manner.

4 and 5, one end of the third wire 43 (the thick solid line in FIGS. 1 and 4) is electrically connected to the seventh electrode P7, and the fourth wire 44 (the thick two points in FIGS. 1 and 5) One end of the chain wire) is electrically connected to the sixth electrode P6, the other end of the third wire 43 extends toward the second direction B and winds the second winding portion 312 in the counterclockwise direction for a second number of windings, and After passing through the second partition 33, and then extending toward the second direction B with the other end of the fourth wire 44 and winding the first winding portion 311 in the clockwise direction for the first number of turns until adjacent The first partition 32, the other end of the third wire 43, and the other end of the fourth wire 44 extend in the opposite direction to the first direction A and go around the first winding portion 311 in the clockwise direction. A number of windings, and then the other end of the third wire 43 is electrically connected to the fifth electrode P5, and the other end of the fourth wire 44 passes through the second partition 33 and extends toward the first direction A with the The second winding portion 312 is wound clockwise for the second winding number, and finally the eighth electrode P8 is electrically connected. The third wire 43 and the fourth wire 44 wound around the first winding portion 311 form a secondary-side coil inductance, and the third wire 43 and the fourth wire 44 wound around the second winding portion 312 A common mode filter is formed.

Referring to FIG. 6, the first layer coil and the second layer coil of the first winding portion 311, that is, the second layer coil closest to the winding core 31, will be wound by the first wire 41 and the second wire 42 Thus, the third layer coil and the fourth layer coil of the first winding portion 311 are respectively wound by a part of the third wire 43 and a part of the fourth wire 44 and stacked on the second layer of coil. to make.

The first layer of coils of the second winding portion 312, that is, the bottom coil closest to the winding core 31, is wound by another part of the third wire 43. The second layer of the second winding portion 312 The coil is formed by winding another part of the fourth wire 44 on the first layer of coil.

Referring to FIG. 7, in a first different implementation aspect of this embodiment, the difference is that one end of the third wire 43 and one end of the fourth wire 44 can also be electrically connected to the seventh electrode P7 and the first Eight electrodes P8, and then make the other end of the third wire 43 and the other end of the fourth wire 44 go around the second winding portion 312 toward the second direction B, so that the third wire 43 and the fourth wire The wires 44 form a winding structure that is wound side by side on the second winding part 312, and then cross the second partition 33, and then wind (same-wind) the first winding part 311 at the same time.

In a second different implementation aspect of this embodiment, the difference from the first different implementation aspect of this embodiment is that the second separator 33 is further provided with two other electrodes, and the third lead 43 and The fourth wire 44 has two sections of wires. One end of the first section of the third wire 43 is electrically connected to the fifth electrode P7, and one end of the first section of the fourth wire 44 is electrically connected to the sixth electrode P7. Electrode P6, and then the other end of the first section of the third wire 43, and the other end of the first section of the fourth wire 44 toward the second direction B and the first winding portion 311 and the first After the number of windings, the other two electrodes of the second separator 33 are electrically connected, one end of the second section of the third lead 43, and one end of the second section of the fourth lead 44 are electrically connected to the The other two electrodes of the second separator 33, the other end of the second section of the third wire 43, and the other end of the second section of the fourth wire 44 go around the second direction B and the second The winding portion 312 is electrically connected to the seventh electrode P7 and the eighth electrode P8 after the second number of windings. In short, originally the third wire 43 and the fourth wire 44 need to cross the second separator 33 to reach the end of one wire. Instead, the other two electrodes of the second separator 33 are electrically connected. In order to pass through the second partition 33, each section of the third wire 43 and the fourth wire 44 is wound to the end without crossing the second partition 33, which further simplifies the actual winding of the first factory Control complexity.

In other different implementations of this embodiment, the difference is that as long as the winding directions of the third wire 43 and the fourth wire 44 of the second winding portion 312 are the same when viewed from the first direction A, change In other words, the third wire 43 and the fourth wire 44 are wound in the clockwise direction or the counterclockwise direction to form the common mode filter. In addition, as long as the winding directions of the first wire 41 and the second wire 42 are the same when viewed from the first direction A, the primary-side coil inductance can be formed. Similarly, as long as the winding directions of the third wire 43 and the fourth wire 44 wound around the first winding portion 311 are the same when viewed from the first direction A, the secondary side coil inductance can be formed.

It is worth mentioning that, as shown in FIG. 1, in this embodiment, the first electrode P1 and the second electrode P2 adjacent to the first electrode P1 can also be a single electrode, or through spot welding without additional An additional wire is electrically connected to form a short circuit to form a contact of the center tap of the primary side. Alternatively, the third electrode P3 and the fourth electrode P4 can also be a single electrode, or can be short-circuited by spot welding without another additional wire electrical connection, so as to form a primary-side center-tapped contact. The fifth electrode P5 and the sixth electrode P6 can be short-circuited through spot welding without the need for another additional wire to be electrically connected, or a single electrode can be used to replace the fifth electrode P5 and the sixth electrode P6 to Form the contact of the center tap on the secondary side.

Referring to FIG. 8, a second embodiment of the filtering and transforming device of the present invention is similar to the first embodiment, except that: the electrode unit further includes a peripheral surface of the second separator 33 The ninth electrode P9 and a tenth electrode P10 arranged on the peripheral surface of the third separator 34. The wire unit 4 further includes a fifth wire 45 (dotted line in FIG. 8), and the fifth wire One end of 45 is electrically connected to the ninth electrode P9, while the other end extends toward the first direction A and winds the second winding portion 312 in the clockwise direction for the second winding number, and finally is electrically connected to the tenth electrode P10 .

Referring to FIG. 9, the difference between this embodiment and the first embodiment in the second winding portion 312 is that the fifth wire 45 wound by the second winding portion 312 is stacked on the fourth wire 44 , To form the third layer of coils of the second winding portion 312.

The fifth electrode P5, the sixth electrode P6 adjacent to the fifth electrode P5, and the ninth electrode P9 adjacent to the fifth electrode P5 can also be the same electrode, or through spot welding without other additional The electrical connection of the wires can be short-circuited to form the center tap of the secondary side.

Referring to FIG. 10, in a different implementation aspect of this embodiment, the difference is that the third wire 43, the fourth wire 44, and the fifth wire 45 can also be wound at the same time (same winding), so that the The third wire 43, the fourth wire 44, and the fifth wire 45 form a winding structure that is wound side by side on the second winding portion 312.

Among the other different implementation aspects of this embodiment, the difference is that as long as the second winding portion 312 is viewed from the first direction A, it is different from the other multiple implementation aspects of the first embodiment. The winding directions of the third wire 43, the fourth wire 44, and the fifth wire 45 are the same, in other words, the winding directions of the third wire 43, the fourth wire 44, and the fifth wire 45 The winding in the clockwise direction or the counterclockwise direction can still form the common mode filter.

In summary, the filtering and transforming device of the present invention winds the first wire 41 and the second wire 42 back and forth around the first winding portion 311, and winds the first wire 41 and the second wire 42 back and forth around the first winding portion 311. The three wires 43 and the fourth wire 44, and the third wire 43 and the fourth wire 44 wound around the second winding portion 312, to integrate a transformer and a common mode filter in the filtering and transforming device, not only It effectively reduces the manufacturing and punching process of the system board, and since each wire is wound to the end, the control complexity of the winding machine is further reduced, and the purpose of the filter transformation of the present invention is achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent for the present invention.

3: Winding main body 31: Winding core 311: First winding part 312: Second winding part 32: First partition 33: Second partition 34: Third partition 4: Wire unit 41: First wire 42 : Second lead 43: third lead 44: fourth lead P1: first electrode P2: second electrode P3: third electrode P4: fourth electrode P5: fifth electrode P6: sixth electrode P7: seventh electrode P8 : Eighth electrode P9: Ninth electrode P10: Tenth electrode A: First direction B: Second direction

The other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a bottom view, schematically illustrating a first embodiment of the filter transformer device of the present invention; Figure 2 is A partial bottom view, which only schematically illustrates the winding method of a first wire in the first embodiment; Figure 3 is a partial bottom view, which only schematically illustrates the winding method of a second wire in the first embodiment Figure 4 is a partial bottom view, which only schematically illustrates the winding method of a third wire of the first embodiment; Figure 5 is a partial bottom view, which only schematically illustrates a fourth wire of the first embodiment Figure 6 is a cross-sectional view schematically illustrating a wire winding state of the first embodiment; Figure 7 is a cross-sectional view schematically illustrating another wire winding state of the first embodiment; Figure 8 Is a bottom view schematically illustrating a second embodiment of the filter transformer device of the present invention; FIG. 9 is a cross-sectional view schematically illustrating a wire stacking state of the second embodiment; and FIG. 10 is a cross-sectional view, schematically Describes another wire-wound state of the second embodiment.

3: Winding the main body

31: winding core

311: First winding part

312: Second winding part

32: The first partition

33: second partition

34: third partition

4: Wire unit

43: third wire

44: Fourth wire

P1: first electrode

P2: second electrode

P3: third electrode

P4: Fourth electrode

P5: fifth electrode

P6: sixth electrode

41: The first wire

42: second wire

P7: seventh electrode

P8: Eighth electrode

Claims (10)

A filter transformer device, comprising: a winding main body, including a winding core, a first partition, a second partition, and a third partition arranged on the winding core in sequence and at intervals, the first partition and The second separator separates the winding core into a first winding part, and the second separator and the third separator separate the winding core into a second winding part; an electrode unit including the same arranged on the A first electrode, a second electrode, a third electrode, and a fourth electrode of a separator, a fifth electrode and a sixth electrode also provided on the second separator, are also provided on the third separator A seventh electrode and an eighth electrode of the board; and a lead unit, including a first lead, a second lead, a third lead, and a fourth lead, both the first lead and the second lead The first winding part is wound in a first wire winding direction toward a first direction, and then the first winding part is wound in a second direction opposite to the first direction in the first wire winding direction, so that the second One end of a wire is electrically connected to the first electrode, and the other end of the first wire is electrically connected to the third electrode; and one end of the second wire is electrically connected to the fourth electrode, and the other end of the second wire One end is electrically connected to the second electrode to form a primary side inductance, wherein the first wire winding direction and the second wire winding direction are the wire winding directions defined by the wire unit along the first direction; the third The wire is wound in a second wire winding direction toward a second direction, so that a part of the wire of the third wire is wound around the second winding part, and another part of the wire passes through the second partition and is wound back and forth in the first wire winding direction In the first winding portion, one end of the third wire is electrically connected to the seventh electrode, and the other end is electrically connected to the fifth electrode; the fourth wire is wound in the winding direction of the first wire toward the second direction , A part of the fourth wire is wound around the first winding part, and another part of the wire passes through the second partition, and is wound around the second winding part in the second winding direction, so that a part of the fourth wire One end is electrically connected to the sixth electrode, and the other end is electrically connected to the eighth electrode to form a secondary side inductor and a common mode filter. The filtering and transforming device according to claim 1, wherein the electrode unit further includes a ninth electrode provided on the second separator, and a tenth electrode provided on the third separator, the wire unit further It includes a fifth wire, the fifth wire is wound around the second winding part in the winding direction of the second wire, so that one end of the fifth wire is electrically connected to the ninth electrode, and the other end is electrically connected to the tenth electrode , To form a center tapped inductor on the secondary side. The filter transformer device according to claim 1, wherein the first direction is defined as a direction along the length of the winding core, from the first partition to the third partition, and the second direction is Along the length direction of the winding core, from the third partition to the direction pointed by the first partition, the first wire winding direction and the second wire winding direction are the wires defined by looking in the first direction Winding direction. The filtering and transforming device according to claim 1, wherein the first wire and the second wire are in the same direction and wind around the first winding part. The filtering and transforming device according to claim 1, wherein the third wire and the fourth wire are in the same direction and are wound around the first winding part. The filtering and transforming device according to claim 1, wherein the first electrode and the second electrode are short-circuited by welding to be equivalent to a single electrode, thereby forming a primary-side center-tap contact. The filtering and transforming device according to claim 1, wherein the third electrode and the fourth electrode are short-circuited by welding to be equivalent to a single electrode, thereby forming a primary-side center-tap contact. The filtering and transforming device according to claim 1, wherein the fifth electrode and the sixth electrode are short-circuited by welding to be equivalent to a single electrode, thereby forming a secondary-side center-tapped contact. The filtering and transforming device according to claim 2, wherein the fifth electrode, the sixth electrode, and the ninth electrode are equivalent to a single electrode by being short-circuited, thereby forming a connection of the secondary side center tap point. The filtering and transforming device according to claim 2, wherein the ten electrodes of the first electrode, the second electrode and the tenth electrode are all on the same horizontal plane.

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