TW202240613A - Improved structure of transformer wire frame capable of increasing the creepage distance, shielding the loop interference between coils, and simplifying the production procedure of an improved transformer wire frame structure - Google Patents

Abstract

An improved structure of a transformer wire frame is provided with a first wire frame and a second wire frame. A plurality of magnetically conductive sheets are respectively arranged in grooves on the top of the first wire frame. The first wire frame and the second wire frame are respectively wound with coils, and each of the coils is connected to the first terminal set at the bottom of the first wire frame and the second terminal set at the bottom of the second wire frame. Further, a plurality of insulators are respectively wrapped on both sides of the second wire frame. The second wire frame is assembled into the receiving groove at the top of the first wire frame, so the coil conductor of the second wire frame is extended and accommodated in the wire groove on the bottom side of the second wire frame, which can isolate the coil signal and external noise in the first wire frame, thereby increasing the creepage distance, shielding the loop interference between coils, and simplifying the production procedure of an improved transformer wire frame structure.

Description

Improved Structure of Transformer Wire Frame

The invention relates to a resonant transformer, in particular to an improved structure of a transformer wire frame which simplifies the production process, increases the creepage distance, and has an adjustable dew sense.

Conventional resonant transformers are limited by size, weight, coil ratio, etc., and the leakage inductance generated cannot be adjusted at will, which cannot meet the needs of power supply systems with different power levels. Furthermore, in order to meet the needs of different leakage inductance power supply systems, the industry must The same structure is used to generate the required leakage inductance, but the variable range of the leakage inductance is often limited, which cannot fully meet the design. It can only be matched with the existing transformer through the compromise of the circuit, but the performance of the resonant transformer cannot be effectively improved;

Therefore, the applicant of this case proposed a resonant transformer structure with adjustable leakage inductance, such as the patent case No. I556273 of the Republic of China Patent Announcement; however, even for a resonant transformer, its manufacturing process is still the same as the traditional transformer, that is, the primary coil is wound Set it on the primary wire frame, then reserve the outgoing wire (that is, reserve a certain length of wire), then combine the primary wire frame with the secondary wire frame, and then connect the outgoing wire to the primary PIN pin on the secondary wire frame, In particular, there is a set of auxiliary windings on the secondary winding of the resonant transformer, and the auxiliary windings are connected to the primary PIN pin, resulting in increased manufacturing time.

Therefore, some people in the industry have developed a combined transformer. After the primary coil and the secondary coil are respectively wound on the wire frame, the wire frame is combined into a transformer. There are still the following deficiencies that need to be improved:

1. The primary wire frame and the secondary wire frame of this patent have corresponding PIN pins respectively. For example, the metal pins of the primary wire frame are arranged in a row on the left side of the transformer, and the metal pins of the secondary wire frame are on the transformer. However, the aforementioned secondary PIN pins also include the PIN pins of the auxiliary coil, and the PIN pins of the auxiliary coil and the secondary coil have different thicknesses, resulting in the need for more secondary wire racks. Setting the PIN pin for the first time cannot shorten the manufacturing time.

2. Although the primary wire frame is equipped with PIN pins, the auxiliary winding of the secondary winding still needs to be reserved for outgoing wires. It is necessary to wait for the combination of the primary wire frame and the secondary wire frame before connecting the outgoing wires of the auxiliary winding to the primary The PIN pin of the wire frame cannot shorten the production time of the resonant transformer.

3. The bottom of the primary wire frame is a ㄇ-shaped structure. After the secondary wire frame is combined with the primary wire frame, the creepage distance will not be increased, and there is a small gap at the junction of the two wire frames. This distance is Poor insulation conditions can result.

In view of the above-mentioned shortcomings of the conventional method, the inventors aimed at the above-mentioned shortcomings and how to simplify the production process of the resonant transformer, conducted research and improvement, and finally produced the present invention.

The main purpose of the present invention is to provide an improved structure of a transformer wire frame which simplifies the production process and increases the creepage distance.

The secondary object of the present invention is to provide an improved structure of the transformer wire frame which can be directly connected to the PIN pin after the coil is wound on the wire frame and does not need to reserve an outgoing line.

Another object of the present invention is to provide an improved structure of a transformer wire frame with adjustable leakage inductance. .

Yet another object of the present invention is to provide an improved structure of a transformer bobbin used as an anti-magnetic transformer when the leakage is extremely low. .

In order to achieve the above purpose and effect, the technical means adopted by the present invention include: a first wire frame, a second wire frame, a plurality of magnetic conductive sheets, and a plurality of insulating parts, wherein:

The first wire frame is provided with a first perforation and a first wire groove through it, and the top of the first wire frame is provided with a plurality of grooves, and a wall plate is arranged around the top to form a receiving groove, and the bottom of the first wire frame One side is provided with a plurality of wiring grooves, and the other side extends a first connection base and is provided with a connection part, and a first terminal group is provided on both sides of the connection part.

The magnetic conductive sheets are respectively arranged in the grooves.

The second wire frame is provided with a second through hole and a second wire slot through which a second connecting seat is extended on one side of the bottom of the second wire frame and a wire slot is provided, and a second terminal group is arranged on both sides of the wire slot ;as well as,

The insulator wraps both sides of the second wire frame respectively.

Thereby, a coil is respectively wound on the first wire frame and the second wire frame at the same time, and the coils are connected to the first terminal group and the second terminal group respectively, and the magnetic conductive sheets are respectively arranged in the groove, and the first terminal group and the second terminal group are connected respectively. The second wire frame is assembled into the storage groove, and the coil wire of the second wire frame is extended and stored in the wire groove, which can isolate the coil signal in the first wire frame and external noise, increase the creepage distance, and can shield the coil Interference between the loops, simplify the production process of the improved structure of the transformer wire frame.

According to the above structure, the top and the bottom of the first wire frame are respectively provided with a first top plate and a first bottom plate, and the first wire slot is provided between the first bottom plate and the second bottom plate, wherein: the surface of the first top plate is provided with The grooves, and the wall plate is arranged around the periphery of the first top plate, the receiving groove is formed between the wall plate and the first top plate; The first connecting seat and the connecting portion.

According to the above structure, a second top plate and a second bottom plate respectively extend from the top and the bottom of the second wire frame, the second wire groove is formed between the second top plate and the second bottom plate, and the second bottom plate extends the A heat dissipation space is formed between the second connection seat and the wire groove; and the second bottom plate and the second connection seat.

According to the above structure, a symmetrical first fixing part is arranged in the connecting part, and a second fixing part is arranged on both sides of the second connecting seat, and the second connecting seat is assembled into the connecting part, so that the first fixing part It is combined with the second fixing part to achieve a structure of positioning during assembly and increasing mechanical strength after assembly.

According to the above structure, one side of the bottom of the second connection seat is provided with a third fixing part connected with the second bottom plate, the bottom surface of the other side is provided with a plurality of partition plates, and the top side of the first wire frame is provided with a The notch, the second wire frame is assembled into the receiving groove, and the third fixing part is incorporated into the notch, so as to achieve a structure of positioning during assembly and increasing mechanical strength after assembly.

According to the above structure, a plurality of recesses are arranged in the wire groove.

According to the above structure, the first connecting seat is provided with a third terminal subgroup.

According to the above structure, the coil includes: a first coil, which is wound in the first wire slot, and respectively extends a first wire outlet and a second wire outlet, and the first wire outlet extends a group into the wiring groove, the second wire outlet extends to connect with the first terminal group; and, a second coil is wound in the second wire groove, and extends a third wire outlet, the third wire outlet The second terminal group is connected along the wire groove.

According to the above structure, it further includes an iron core group, which has two symmetrically arranged first iron cores and second iron cores, and there are respectively a There is a protruding part inside the side wall parts, and the protruding part respectively passes through the first through hole and the second perforation; thereby, after the first wire frame is combined with the second wire frame, the first The iron core is sleeved on the top of the first wire frame, and the second iron core is sleeved on the bottom of the second wire frame, so that the transformer can generate leakage inductance of required strength through the magnetic conductive sheet.

In order to make the above-mentioned purpose, effects and characteristics of the present invention more concretely understood, the description is as follows according to the accompanying drawings:

Referring to Figures 1 to 3, it can be seen that the structure of the present invention mainly includes: a first wire frame 1, a plurality of magnetic conductive sheets 2, a second wire frame 3, a plurality of insulating parts 4, and a first coil 5 , a second coil 6, and an iron core group 7. It should be explained first that the present invention is mainly aimed at improving the structure of the first wire frame 1 and the second wire frame 3, including but not limited to the combination guide of the first wire frame 1. The combined structure of the magnetic sheet 3, the second wire frame 3 combined with the insulator 4, and the first wire frame 1 combined with the second wire frame 3; and the description about the first coil 5, the second coil 6, and the iron core group 7 , in order to let the Judging Committee clearly understand the structure of the present invention combined into a complete resonant transformer, which will be described first.

The first thread frame 1 is provided with a first through hole 10, the top and the bottom of the first thread frame 1 are respectively provided with a first top plate 11 and a first bottom plate 12, between the first bottom plate 12 and the second bottom plate 32 There is a first trunking 13, wherein:

The surface of the first top plate 11 is provided with a plurality of grooves 111, and a wall plate 112 is arranged around the first top plate 11, a receiving groove 113 is formed between the wall plate 112 and the first top plate 11, and one side of the first top plate 11 is provided with a gap 114; and,

A plurality of connection grooves 121 and a third terminal group 122 are disposed on one side of the first bottom plate 12 , and a first connecting seat 14 and a connecting portion 141 are extended on the other side, and a symmetrical first fixing portion 143 is disposed in the connecting portion 141 .

Each magnetic conductive sheet 2 is respectively disposed in the groove 111 on the top of the first top board 11 .

The second thread frame 3 is provided with a second through hole 30, the top and the bottom of the second thread frame 3 respectively extend a second top plate 31 and a second bottom plate 32, and there is a gap between the second top plate 31 and the second bottom plate 32. The second wiring groove 33, a second connecting seat 34 and a wire groove 341 are extended on one side of the second bottom plate 32, a heat dissipation space 320 is formed between the second bottom plate 32 and the second connecting seat 34, and on both sides of the second connecting seat 34 A second fixing part 343 is provided on one side, and a third fixing part 344 connected to the second bottom plate 32 is provided on one side of the second connecting seat 34, and a plurality of partition plates 346 are provided on the bottom surface of the other side, and wire grooves A plurality of recesses 345 are provided inside 341 .

Each insulator 4 wraps both sides of the second wire frame 3 respectively.

The first coil 5 is wound in the first wire slot 13 and extends a first wire outlet 51 and a second wire outlet 52 respectively.

The second coil 6 is wound in the second slot 33 and extends to a third outlet 61 . as well as,

The iron core group 7 has two symmetrically arranged first iron cores 71 and a second iron core 72, and the two ends of the surface of the first iron core 71 and the second iron core 72 respectively have side wall parts 711, 721 , There is a convex portion 712, 722 inside between the side wall portions 711, 721.

When the above components are combined (please refer to Figure 4 for assistance), the first coil 5 is wound in the first wire slot 13 of the first wire frame 1, and the first wire outlet 51 is extended and assembled into the wire slot of the first wire frame 1 121, the second outlet end 52 is connected to the first terminal group 142 along the surface of the first connection seat 14; at the same time, the second coil 6 is wound in the second slot 33 of the second wire frame 3, and the third outlet The end 61 is connected to the second terminal group 342 along the wire groove 341; because the wire groove 341 is provided with a plurality of recesses 345, therefore, when the third outlet end 61 is a plurality of wires, each wire can be respectively accommodated in the recesses 345 Inside.

It should be noted that the above-mentioned first coil 5 is wound on the first bobbin 1, and the second coil 6 is wound on the second bobbin 3, because the first bobbin 1 and the second bobbin 3 are independent components, so coil winding can be performed independently; and the first outlet end 51 and the second outlet end 52 of the first coil 5 can be directly connected to the junction slot 121, the first terminal group 142, and the second The third terminal 61 of the coil 6 can be directly connected to the second terminal group 342 ; a structure that simplifies the production process and shortens the production time is achieved.

Each magnetically conductive sheet 2 is arranged in the receiving groove 113 of the first top plate 12 respectively, and each insulating member 4 is coated on both sides of the second wire frame 3 respectively; The top surface of the first top plate 31 and the bottom surface of the second bottom plate 32 , so that the insulating member 4 can wrap the second wire slot 33 of the second wire frame 3 to achieve a structure that increases the creepage distance.

After the above combination steps are completed (please refer to Figure 5 for assistance), that is, the first wire frame 1 completes the winding of the first coil 5 and puts it into the magnetic conductive sheet 2; and the second wire frame 3 completes the winding of the second coil 6 And connect the insulator 4 , continue to assemble the second wire frame 3 into the receiving groove 113 on the top of the first wire frame 1 . It should be noted that after the first wire frame 1 and the second wire frame 3 are combined, the present invention has the following technical features of increasing the creepage distance and strengthening the structure.

1. The second connecting seat 34 on the side of the second bottom plate is assembled into the connecting portion 141 of the first connecting seat 14 on the side of the first bottom plate 12, then the first fixing portion 143 in the connecting portion 14 and the second connecting seat The second fixing part 343 of 34 is combined with each other to achieve a structure of positioning during assembly and increasing mechanical strength after assembly.

2. The third fixing part 344 at the bottom of the second connecting base 34 is sleeved into the notch 114 of the first top plate 11 to achieve positioning during assembly and increase mechanical strength after assembly.

3. The third outlet end 61 of the second coil 6 is connected to the second terminal group 342 along the wire groove 341, so the wire groove 341 can shield the signal interference of the first coil 5 and the second wire outlet end 52 to achieve The third outlet 61 is a structure capable of shielding and isolating signal interference.

4. The partition plate 346 at the bottom of the second connecting seat 34 can increase the creepage distance between the first terminal group 142 and the second terminal group 342 .

Finally (please refer to Figure 6 for assistance), set the first iron core 71 of the iron core group 7 on the top of the first wire frame 1, and the second iron core 72 on the bottom of the second wire frame 3, then the protrusions 712, 722 pass through the first through hole 10 and the second through hole 30 respectively, and then abut against each other, and the two side wall parts 711, 721 cover both sides of the first wire frame 1 and abut against each other, so that the iron core group 7 forms a complete magnetic path , complete the assembly of the present invention.

Thereby, the present invention utilizes the magnetically permeable sheet 2 to change the coupling coefficient between the first coil 5 and the second coil 6. Because the magnetically permeable sheet 2 is magnetically permeable, the magnetically permeable sheet 2 is used to guide the leakage flux back to the iron. The core group 7 can completely avoid the generation of eddy current loss, so the efficiency can be greatly improved. Furthermore, the magnetically conductive sheet 2 is arranged between the first coil 5 and the second coil 6, and the magnetic interference of the magnetically conductive sheet 2 is used to generate the required leakage inductance; it should be noted that the thickness of the magnetically conductive sheet 2 and the resonance transformer produce is proportional to the leakage inductance, and the magnetic permeability of the magnetic sheet 2 is proportional to the leakage inductance generated by the resonant transformer; when the magnetic sheet 2 is not set in the resonant transformer, the leakage inductance generated by the resonant transformer is quite small, and can be Used as an anti-magnetic transformer.

Based on the above, the improved structure of the transformer wire frame of the present invention is indeed a novel and progressive invention, and an application for an invention patent is filed in accordance with the law; but the content of the above description is only a description of the preferred embodiment of the present invention. Changes, modifications, changes or equivalent replacements based on the technical means and scope of the present invention should also fall within the scope of the patent application of the present invention.

1: The first wire rack 10: First piercing 11: The first top plate 111: Groove 112: Siding 113: storage tank 114: Gap 12: The first bottom plate 121: wiring slot 122: The third end group subgroup 13: The first trunking 14: The first connecting seat 141: connection part 142: The first terminal group 143: The first fixed part 144: The third end group subgroup 2: Magnetic sheet 3: The second wire rack 30: Second piercing 31: Second top plate 32: Second bottom plate 320: cooling space 33: Second trunking 34: The second connecting seat 341: wire groove 342: The second terminal group 343: The second fixed part 344: The third fixed part 345: concave part 346: Partition board 4: Insulation 5: The first coil 51: The first outlet 52: The second outgoing terminal 6: Second coil 61: The third terminal 7: Iron core group 71: The first iron core 711: side wall 712: convex part 72: Second core 721: side wall 722: convex part

[Fig. 1] is an exploded perspective view of a preferred embodiment of the present invention. [Figure 2] is another perspective view of some components in [Figure 1]. [Figure 3] is a front view of some components in [Figure 1]. [Fig. 4] is the combination diagram 1 of the preferred embodiment of the present invention. [Fig. 5] is the combination diagram 2 of the preferred embodiment of the present invention. [ Fig. 6 ] is an assembled perspective view of a preferred embodiment of the present invention.

1: The first wire rack

10: First piercing

11: The first top plate

111: Groove

112: Siding

113: storage tank

114: Gap

12: The first bottom plate

121: wiring slot

13: The first trunking

14: The first connecting seat

141: connection part

142: The first terminal group

143: The first fixed part

2: Magnetic sheet

3: The second wire rack

30: Second piercing

31: Second top plate

32: Second bottom plate

320: cooling space

33: Second trunking

34: The second connecting seat

341: wire groove

342: The second terminal group

343: The second fixed part

345: concave part

4: Insulation

5: The first coil

51: The first outlet

52: The second outgoing terminal

6: Second coil

61: The third terminal

7: Iron core group

71: The first iron core

711: side wall

712: convex part

72: Second core

721: side wall

722: convex part

Claims (10)

An improved structure of a transformer wire frame, which at least includes: A first wire frame is provided with a first perforation and a first wire groove through it, and a plurality of grooves are arranged on the top of the first wire frame, and a wall plate is arranged around the top to form a receiving groove, the first wire frame One side of the bottom is provided with a plurality of wiring slots, and the other side is extended with a first connecting seat and a connecting part is provided, and a first terminal group is provided on both sides of the connecting part; A plurality of magnetically conductive sheets are respectively arranged in the groove; A second wire frame is provided with a second through hole and a second wire slot through which a second connecting seat is extended on one side of the bottom of the second wire frame and a wire slot is provided, and a second terminal is provided on both sides of the wire slot Group; a plurality of insulating pieces covering both sides of the second wire frame respectively; Thereby, a coil is respectively wound on the first wire frame and the second wire frame at the same time, and the coils are connected to the first terminal group and the second terminal group respectively, and the magnetic conductive sheets are respectively arranged in the groove, and the first terminal group and the second terminal group are connected respectively. The second wire frame is assembled into the storage groove, and the coil wire of the second wire frame is extended and stored in the wire groove, which can isolate the coil signal in the first wire frame and external noise, increase the creepage distance, and can shield the coil Interference between the loops, simplify the production process of the improved structure of the transformer wire frame. The improved structure of the transformer wire frame according to claim 1, wherein the top and the bottom of the first wire frame are respectively provided with a first top plate and a first bottom plate, and the first wire groove is formed between the first bottom plate and the second bottom plate ,in: These grooves are provided on the surface of the first top plate, and the wall plate is arranged around the periphery of the first top plate, and the receiving groove is formed between the wall plate and the first top plate; and, One side of the first bottom plate is provided with the wiring grooves, and the other side extends the first connecting seat and the connecting portion. The improved structure of the transformer wire frame according to claim 1, wherein the top and the bottom of the second wire frame respectively extend a second top plate and a second bottom plate, and there is the second wire groove between the second top plate and the second bottom plate , one side of the second bottom plate extends the second connection seat and the wire groove. According to the improved structure of the transformer wire frame as claimed in item 3, a heat dissipation space is formed between the second bottom plate and the second connecting seat. The improved structure of the transformer wire frame as described in Claim 1, wherein a symmetrical first fixing part is arranged inside the connecting part, and a second fixing part is arranged on both sides of the second connecting seat, and the second connecting seat is assembled into the In the wiring groove, the first fixing part and the second fixing part are combined with each other to achieve a structure of positioning during assembly and increasing mechanical strength after assembly. The improved structure of the transformer wire frame as described in Claim 1, wherein a third fixing portion connected to the second bottom plate is provided on one side of the bottom of the second connecting seat, and a plurality of partition plates are provided on the bottom surface of the other side; A notch is provided on the top side of the first thread frame, and the second thread frame is assembled into the receiving groove, so that the third fixing part is incorporated into the notch, so as to achieve a structure of positioning during assembly and increasing mechanical strength after assembly. The improved structure of the transformer wire frame according to claim 1, wherein a plurality of recesses are arranged in the wire groove. According to the improved structure of the transformer wire frame as claimed in claim 1, wherein the first connecting seat is provided with a third terminal group subgroup. The improved structure of the transformer wire frame as described in Claim 1, wherein the coil comprises: A first coil, wound in the first wire slot, and respectively extending a first wire outlet end and a second wire outlet end, the first wire outlet end is extended and assembled into the wire slot, and the second wire outlet end extending to connect the first terminal set; and, A second coil is wound in the second wire groove and extends a third wire outlet, and the third wire outlet is connected to the second terminal group along the wire groove. The improved structure of the transformer wire frame as described in claim 1 further includes an iron core group, which has two symmetrically arranged first iron cores and a second iron core, and the first iron core and the second iron core are one There are side wall parts at both ends of the side surface, and there is a convex part inside the side wall parts, and the convex part respectively passes through the first through hole and the second through hole; thereby, the first wire frame and the second wire frame After the two wire frames are combined, the first iron core is sleeved on the top of the first wire frame, and the second iron core is sleeved on the bottom of the second wire frame, so that the transformer can generate leakage inductance of required strength through the magnetic conductive sheet.

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