CN217086350U - Transformer structure - Google Patents

Abstract

A transformer structure includes a winding frame, an iron core unit and a wire unit. The bobbin has a hollow body, an outer edge and a limiting portion, the iron core unit passes through the body and surrounds the bobbin, and the outer edge protrudes from the body in a horizontal direction. The limiter protrudes from the outer edge portion toward the horizontal direction to limit the wire unit to a predetermined position.

Description

Transformer structure

technical field

The utility model relates to a transformer structure. More specifically, the present invention relates to a transformer structure with a winding frame.

Background technique

In the assembling process of a general transformer, it is usually necessary to wind the wires on a winding frame. However, due to the limitation of the structure of the traditional winding frame, it is often difficult to increase the winding space, so that the performance of the transformer cannot be effectively improved.

In view of this, how to improve the traditional transformer structure to improve its performance has become an important issue for researchers in the technical field.

Utility model content

In view of the aforementioned conventional problems, an embodiment of the present invention provides a transformer structure including a winding frame, an iron core unit and a lead unit. The bobbin has a hollow body, an outer edge and a limit portion, the body has a central axis, the outer edge is protruded from the body from one end of the body in a horizontal direction, and the limit is The part is formed on a connecting surface of the outer edge part, wherein the limiting part protrudes from the outer edge part toward the horizontal direction, and the horizontal direction is perpendicular to the central axis.

The aforementioned core unit passes through the aforementioned body and surrounds the aforementioned bobbin, wherein the aforementioned connecting surface of the aforementioned outer edge portion faces the aforementioned core unit. The lead unit is wound on the body, wherein the limiting portion restricts a predetermined position of the lead unit on the bobbin to prevent the lead unit from falling off the bobbin, and a part of the lead unit surrounds the lead unit The outer edge portion is such that the portion of the lead wire unit is located between the iron core unit and the outer edge portion in the horizontal direction.

In one embodiment, the transformer structure further includes an insulating sheet disposed on the outer edge portion for electrically isolating the iron core unit and the wire unit.

In one embodiment, the insulating sheet protrudes from the wire unit in the horizontal direction.

In one embodiment, the insulating sheet has a soft material and is sandwiched between the outer edge portion and the iron core unit.

In one embodiment, the insulating sheet is an insulating tape or a Mylar sheet.

In one embodiment, when viewed along the horizontal direction, the wire unit partially overlaps the outer edge portion.

In one embodiment, the main body further has two outer edge portions, the outer edge portions are located on opposite sides of the main body, and when viewed in the horizontal direction, the wire unit and the outer edge portions partially overlap.

In one embodiment, the outer edge portion extends from the main body to the horizontal direction by 0.5-3 mm.

In one embodiment, the limiting portion is higher than the outer edge portion.

In one embodiment, the transformer structure further includes a foot, connected to the body, and the wire unit is wound between the limiting portion and the foot.

Description of drawings

FIG. 1 shows an exploded view of a transformer structure 100 according to an embodiment of the present invention;

FIG. 2 shows a perspective view of the transformer structure 100 shown in FIG. 1 after assembly;

Figure 3 shows a cross-sectional view along line A1-A2 in Figure 2;

Fig. 4 shows the perspective view of the bobbin B in Fig. 1;

Fig. 5 shows another perspective view of the bobbin B in Fig. 1;

Figure 6 shows a cross-sectional view of the bobbin B in Figures 4 and 5;

7 shows a perspective view when the inner lead portion W1 of the lead wire unit W is wound around the body B1 of the bobbin B;

8 shows a perspective view of the outer wire portion W2 of the wire unit W being wound around the bobbin B and protruding from the outer edge portion B2;

FIG. 9 shows a perspective view after assembling the insulating sheets S1, S2 and the lead unit W on the bobbin B;

FIG. 10 shows a cross-sectional view of the insulating sheets S1 and S2 and the lead unit W assembled to the bobbin B, and FIG. 11 shows a cross-sectional view along the line A3-A4 in FIG. 2 .

【Symbol Description】

100: Transformer Structure

B: reel

B0: Center axis

B1: Ontology

B2: Outer edge

B21: Connection surface

B3: Limiting part

B4: Foot

B5: Pin

C: Iron core unit

C1: Upper iron core

C2: Lower iron core

S1: insulating sheet

S2: insulating sheet

W: wire unit

W1: Inner lead part

W2: Outer lead part

Detailed ways

The following describes the transformer structure of the embodiment of the present invention. It can be readily appreciated, however, that the embodiments of the invention provide many suitable invention concepts for implementation in a wide variety of specific contexts. The disclosed specific embodiments are only used to illustrate specific methods for using the present invention, and are not intended to limit the scope of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill of the art to which this disclosure belongs. It is to be understood that these terms, such as those defined in commonly used dictionaries, should be interpreted to have a meaning consistent with the relevant art and the context or context of this disclosure, and not in an idealized or overly formal manner Interpretation unless specifically defined herein.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or rear, etc., are only referring to the directions of the attached drawings. Therefore, the directional terms used in the embodiments are used to describe and not to limit the present invention.

First, please refer to FIGS. 1, 2, 3, 4, 5 and 6 together. FIG. 1 shows an exploded view of the transformer structure 100 according to an embodiment of the present invention, and FIG. 2 shows the transformer structure 100 shown in FIG. 1 after being assembled. 3 shows a cross-sectional view along the line A1-A2 in FIG. 2, FIG. 4 shows a perspective view of the bobbin B in FIG. 1, and FIG. 5 shows another perspective view of the bobbin B in FIG. 1. 6 shows a cross-sectional view of the bobbin B in FIGS. 4 and 5 .

As shown in FIGS. 1 , 2 and 3 , the transformer structure 100 of an embodiment of the present invention mainly includes a core unit C, a winding frame B, a lead unit W, and two insulating sheets S1 and S2 , wherein the aforementioned iron The core unit C includes an upper iron core C1 and a lower iron core C2 connected to each other, and the aforementioned wire unit W includes an inner wire portion W1 and an outer wire portion W2.

The aforementioned lead unit W is wound on the aforementioned bobbin B, and the aforementioned insulating sheets S1 and S2 are respectively arranged on the upper and lower sides of the bobbin B, and are located between the iron core unit C and the lead unit W for electrical power. The wire unit W and the iron core unit C are isolated from each other so as to prevent the occurrence of flashover.

In addition, it can be clearly seen from FIGS. 1, 3, 4, 5, and 6 that the aforementioned bobbin B has a hollow body B1, and the upper and lower sides of the body B1 are respectively formed with arc shapes and face the The outer edge portion B2 protruding from the outside, wherein the iron core unit C extends through the center of the body B1 and surrounds the wire unit W and the winding frame B after assembly (as shown in FIG. 3 ).

It should be noted that the body B1 of the bobbin B has a central axis B0, and the outer edge portion B2 is protruded from the body B1 in the horizontal direction from both ends of the body B1. In addition, at least one limiting portion B3 is also formed on the connecting surface B21 of the outer edge portion B2 on the top side of the body B1, wherein the aforementioned limiting portion B3 protrudes from the outer edge portion B2 in the horizontal direction, and the limiting portion B3 The height in the Z-axis direction is higher than the outer edge portion B2.

Specifically, the aforementioned horizontal direction is perpendicular to the central axis B0 and parallel to the XY plane, while the aforementioned central axis B0 is parallel to the Z axis and perpendicular to the XY plane. In this embodiment, the aforementioned outer edge portion B2 extends outward from the body B1 of the bobbin B by about 0.5-3 mm, preferably 1-2 mm.

Please continue to refer to FIGS. 1 to 6 , another outer edge portion B2 located on the bottom side of the bobbin B also protrudes from the body B1 in the horizontal direction, and two connecting surfaces B21 below the outer edge portion B2 are formed. The feet B4 (see Figure 5), one of the feet B4 is provided with a pin B5 on the bottom side, which can be used to fix the wire.

It should be understood that the connecting surfaces B21 of the two outer edge portions B2 located on the top side and the bottom side of the bobbin B face the core unit C after assembly (as shown in FIG. 3 ). As mentioned above, in this embodiment, the winding space around the bobbin B can be increased through the stepped structure (as shown in FIG. 6 ) formed by the aforementioned outer edge portion B2 and the limiting portions B3 and B4 At the same time, the wire unit W can be stably limited and fixed at a predetermined position on the bobbin B, thereby effectively preventing the wire unit W from falling off from the bobbin B.

7 , 8 , 9 , 10 , and 11 , wherein FIG. 7 shows a perspective view of the inner lead portion W1 of the lead wire unit W being wound around the body B1 of the bobbin B, and FIG. 8 shows the outer lead wire of the lead wire unit W Figure 9 shows a perspective view of the insulating sheets S1, S2 and the lead unit W assembled on the bobbin B, and Figure 10 shows the insulating sheets S1, S2, A cross-sectional view of S2 and the lead unit W assembled to the bobbin B, and FIG. 11 shows a cross-sectional view along line A3-A4 in FIG. 2 .

As shown in FIG. 7 , in the process of winding the wire unit W on the bobbin B, the inner wire portion W1 of the wire unit W will first be wound and limited to the body B1 and the two outer edge portions B2 of the bobbin B in the formed groove.

Also, as can be seen from Figures 8, 9 and 10, after the wire unit W is completely wound around the bobbin B, the outer wire portion W2 of the wire unit W will protrude from the outer edge portion B2 of the bobbin B, When viewed in the horizontal direction (X-axis direction), it can be seen that the outer wire portion W2 of the wire unit W partially overlaps the outer edge portions B2 on the upper and lower sides of the bobbin B (as shown in FIG. 10 ).

It should be noted that when the wire unit W is completely installed on the bobbin B, the outer wire portion W2 of the wire unit W surrounds the inner wire portion W1 and the outer edge portion B2 of the bobbin B, and the wire unit The outer wire portion W2 of W is confined between the limiting portion B3 and the foot base B4 in the Z-axis direction, so as to fix the wire unit W at a predetermined position on the bobbin B.

Next, the two insulating sheets S1 and S2 can be mounted on the connecting surface B21 of the outer edge portion B2 of the bobbin B respectively (as shown in FIGS. 9 and 10 ). In this embodiment, the aforementioned insulating sheets S1 and S2 are made of soft materials (such as insulating tapes or Mylar sheets), and are sandwiched between the outer edge portion B2 of the bobbin B and the iron core unit C, wherein the insulating sheets are insulated The maximum width of the sheets S1 and S2 in the horizontal direction is greater than the maximum width of the outer edge portion B2 and the wire unit W in the horizontal direction, which means that the insulating sheets S1 and S2 will protrude from the outer edge portion B2 and the wire in the horizontal direction. The unit W ( FIG. 9 ) can completely cover the upper and lower sides of the wire unit W to ensure that there is no flashover between the wire unit W and the iron core unit C.

It can be seen from FIGS. 3 and 11 , after the iron core unit C, the insulating sheets S1 , S2 and the lead unit W are installed on the winding frame B to form the aforementioned transformer structure 100 , the outer lead portion W2 of the lead unit W is in the The winding height in the Z-axis direction will be significantly greater than the winding height of the inner wire portion W1 in the Z-axis direction, so that not only the number of windings of the wire unit W as a whole can be greatly increased to improve the performance of the transformer structure 100, but also the wire unit W can be greatly improved. The outer wire portion W2 of the wire is also restricted by the limiting portion B3 and the foot seat B4 in the Z-axis direction, so that the wire unit W will not fall off from the bobbin B, so that it can also have the effect of fixing the wire.

Specifically, in this embodiment, by making a part of the wire unit W (outer wire portion W2 ) surrounding the outer edge portion B2 , the winding space around the bobbin B can be increased to improve the overall performance of the transformer structure 100 , wherein the wire unit This portion of W (outer wire portion W2 ) is positioned between the core unit C and the outer edge portion B2 of the bobbin B in the horizontal direction ( FIG. 3 ).

Although the embodiments of the present invention and the advantages thereof have been disclosed above, it should be understood that any person with ordinary knowledge in the technical field can make changes, substitutions and modifications without departing from the spirit and scope of the present invention retouch. In addition, the protection scope of the present invention is not limited to the process, machine, manufacture, material composition, device, method and steps in the specific embodiments described in the specification. Anyone with ordinary knowledge in the technical field can learn from the present invention In the disclosure, it is understood that processes, machines, manufacturing, material compositions, devices, methods and steps developed in the present or in the future, as long as substantially the same functions can be implemented or substantially the same results can be achieved in the embodiments described herein. New use. Therefore, the protection scope of the present invention includes the above-mentioned manufacturing process, machine, manufacture, material composition, device, method and steps. In addition, each claim constitutes a separate embodiment, and the protection scope of the present invention also includes the combination of each claim and the embodiment.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this technology can make some changes without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the appended claims.

Claims (10)

1. A transformer structure, comprising:

a bobbin, having a hollow body, an outer edge and a position-limiting part, wherein the body has a central axis, the outer edge protrudes from one end of the body to a horizontal direction, the horizontal direction is perpendicular to the central axis, and the position-limiting part is formed on a connecting surface of the outer edge, wherein the position-limiting part protrudes from the outer edge to the horizontal direction;

an iron core unit passing through the body and surrounding the bobbin, wherein the connection surface of the outer edge portion faces the iron core unit; and

and the limiting part limits a set position of the lead unit on the winding frame so as to prevent the lead unit from falling off the winding frame, and one part of the lead unit surrounds the outer edge part so that the part of the lead unit is positioned between the iron core unit and the outer edge part in the horizontal direction.

2. The transformer structure of claim 1, further comprising an insulating sheet disposed on the outer edge portion and located between the core unit and the wire unit.

3. The transformer structure of claim 2, wherein the insulation sheet protrudes from the lead unit in the horizontal direction.

4. The transformer structure of claim 2, wherein the insulation sheet is made of a soft material and is sandwiched between the outer edge portion and the core unit.

5. The transformer structure of claim 2, wherein the insulating sheet is an insulating tape or mylar sheet.

6. The transformer structure according to claim 1, wherein the lead unit partially overlaps the outer edge portion when viewed in the horizontal direction.

7. The transformer structure of claim 1, wherein the body further has two outer edge portions located at opposite sides of the body, and the lead unit partially overlaps the outer edge portions when viewed in the horizontal direction.

8. The transformer structure of claim 1, wherein the outer edge extends from the body to the horizontal direction by 0.5-3 mm.

9. The transformer structure of claim 1, wherein the limiting portion is higher than the outer edge portion.

10. The transformer structure of claim 1, further comprising a base connected to the body, wherein the lead unit is wound between the position-limiting portion and the base.

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