CN217086350U - Transformer structure - Google Patents

Transformer structure Download PDF

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CN217086350U
CN217086350U CN202220505625.3U CN202220505625U CN217086350U CN 217086350 U CN217086350 U CN 217086350U CN 202220505625 U CN202220505625 U CN 202220505625U CN 217086350 U CN217086350 U CN 217086350U
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outer edge
unit
transformer structure
horizontal direction
bobbin
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彭贤均
颜錞靖
曹越
李铭成
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Delta Electronics Inc
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Delta Electronics Inc
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Abstract

一种变压器结构,包括一绕线架、一铁芯单元以及一导线单元。前述绕线架具有一中空的本体、一外缘部以及一限位部,前述铁芯单元穿过前述本体并且围绕前述绕线架,前述外缘部则朝一水平方向凸出于前述本体。前述限位朝前述水平方向凸出于前述外缘部,用以限制前述导线单元于一既定位置。

Figure 202220505625

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.

Figure 202220505625

Description

变压器结构Transformer structure

技术领域technical field

本实用新型是有关于一种变压器结构。更具体地来说,本实用新型有关于一种具有绕线架的变压器结构。The utility model relates to a transformer structure. More specifically, the present invention relates to a transformer structure with a winding frame.

背景技术Background technique

在一般变压器的组装过程中,通常必须将导线缠绕于一绕线架上,然而受到传统绕线架结构的限制,往往难以增加其绕线空间,从而使得变压器的性能无法有效地提升。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.

有鉴于此,如何改良传统的变压器结构以提升其效能始成为本技术领域研发人员的一重要课题。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.

实用新型内容Utility model content

有鉴于前述习知问题点,本实用新型的一实施例提供一种变压器结构,包括一绕线架、一铁芯单元以及一导线单元。前述绕线架具有一中空的本体、一外缘部以及一限位部,前述本体具有一中心轴,前述外缘部是由前述本体的一端朝一水平方向凸出于前述本体,且前述限位部形成于前述外缘部的一连接面上,其中前述限位部朝前述水平方向凸出于前述外缘部,且前述水平方向垂直于前述中心轴。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.

前述铁芯单元,穿过前述本体并且围绕前述绕线架,其中前述外缘部的前述连接面朝向前述铁芯单元。前述导线单元缠绕于前述本体上,其中前述限位部限制前述导线单元于前述绕线架上的一既定位置,以避免前述导线单元自前述绕线架上脱落,且前述导线单元的一部分围绕前述外缘部,使得前述导线单元的前述部分在前述水平方向上位于前述铁芯单元以及前述外缘部之间。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.

于一实施例中,前述变压器结构还包括一绝缘片,设置于前述外缘部上,用以电性隔离前述铁芯单元以及前述导线单元。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.

于一实施例中,前述绝缘片在前述水平方向上凸出于前述导线单元。In one embodiment, the insulating sheet protrudes from the wire unit in the horizontal direction.

于一实施例中,前述绝缘片具有软性材质,并且夹设于前述外缘部以及前述铁芯单元之间。In one embodiment, the insulating sheet has a soft material and is sandwiched between the outer edge portion and the iron core unit.

于一实施例中,前述绝缘片为一绝缘胶带或麦拉片。In one embodiment, the insulating sheet is an insulating tape or a Mylar sheet.

于一实施例中,当沿前述水平方向观察时,前述导线单元与前述外缘部部分重叠。In one embodiment, when viewed along the horizontal direction, the wire unit partially overlaps the outer edge portion.

于一实施例中,前述本体还具有两个外缘部,前述外缘部位于前述本体的相反侧,且当沿前述水平方向观察时,前述导线单元与前述外缘部部分重叠。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.

于一实施例中,前述外缘部自前述本体朝前述水平方向延伸0.5~3mm。In one embodiment, the outer edge portion extends from the main body to the horizontal direction by 0.5-3 mm.

于一实施例中,前述限位部高于前述外缘部。In one embodiment, the limiting portion is higher than the outer edge portion.

于一实施例中,前述变压器结构还包括一脚座,连接前述本体,且前述导线单元缠绕于前述限位部以及前述脚座之间。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.

附图说明Description of drawings

图1表示本实用新型一实施例的变压器结构100的爆炸图;FIG. 1 shows an exploded view of a transformer structure 100 according to an embodiment of the present invention;

图2表示图1所示的变压器结构100于组合后的立体图;FIG. 2 shows a perspective view of the transformer structure 100 shown in FIG. 1 after assembly;

图3表示沿图2中的线段A1-A2的剖视图;Figure 3 shows a cross-sectional view along line A1-A2 in Figure 2;

图4表示图1中的绕线架B的立体图;Fig. 4 shows the perspective view of the bobbin B in Fig. 1;

图5表示图1中的绕线架B的另一视角立体图;Fig. 5 shows another perspective view of the bobbin B in Fig. 1;

图6表示图4、5中的绕线架B的剖视图;Figure 6 shows a cross-sectional view of the bobbin B in Figures 4 and 5;

图7表示导线单元W的内导线部W1缠绕于绕线架B的本体B1时的立体图;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;

图8表示导线单元W的外导线部W2缠绕于绕线架B后凸出于外缘部B2的立体图;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;

图9表示将绝缘片S1、S2以及导线单元W组装于绕线架B后的立体图;FIG. 9 shows a perspective view after assembling the insulating sheets S1, S2 and the lead unit W on the bobbin B;

图10表示将绝缘片S1、S2以及导线单元W组装于绕线架B后的剖视图,图11表示沿图2中的线段A3-A4的剖视图。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 .

【符号说明】【Symbol Description】

100:变压器结构100: Transformer Structure

B:绕线架B: reel

B0:中心轴B0: Center axis

B1:本体B1: Ontology

B2:外缘部B2: Outer edge

B21:连接面B21: Connection surface

B3:限位部B3: Limiting part

B4:脚座B4: Foot

B5:引脚B5: Pin

C:铁芯单元C: Iron core unit

C1:上铁芯C1: Upper iron core

C2:下铁芯C2: Lower iron core

S1:绝缘片S1: insulating sheet

S2:绝缘片S2: insulating sheet

W:导线单元W: wire unit

W1:内导线部W1: Inner lead part

W2:外导线部W2: Outer lead part

具体实施方式Detailed ways

以下说明本实用新型实施例的变压器结构。然而,可轻易了解本实用新型实施例提供许多合适的实用新型概念而可实施于广泛的各种特定背景。所揭示的特定实施例仅仅用于说明以特定方法使用本实用新型,并非用以局限本实用新型的范围。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.

除非另外定义,在此使用的全部用语(包括技术及科学用语)具有与此篇揭露所属的一般技艺者所通常理解的相同涵义。能理解的是这些用语,例如在通常使用的字典中定义的用语,应被解读成具有一与相关技术及本揭露的背景或上下文一致的意思,而不应以一理想化或过度正式的方式解读,除非在此特别定义。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.

有关本实用新型的前述及其他技术内容、特点与功效,在以下配合参考附图的一较佳实施例的详细说明中,将可清楚的呈现。以下各实施例中所提到的方向用语,例如:上、下、左、右、前或后等,仅是参考附加附图的方向。因此,实施方式中所使用的方向用语是用来说明并非用来限制本实用新型。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.

首先请一并参阅图1、2、3、4、5、6,其中图1表示本实用新型一实施例的变压器结构100的爆炸图,图2表示图1所示的变压器结构100于组合后的立体图,图3表示沿图2中的线段A1-A2的剖视图,图4表示图1中的绕线架B的立体图,图5表示图1中的绕线架B的另一视角立体图,图6表示图4、5中的绕线架B的剖视图。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 .

如图1、2、3所示,本实用新型一实施例的变压器结构100主要包括一铁芯单元C、一绕线架B、一导线单元W以及两个绝缘片S1、S2,其中前述铁芯单元C包含相互连接的一上铁芯C1以及一下铁芯C2,前述导线单元W则包含一内导线部W1以及一外导线部W2。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.

前述导线单元W缠绕于前述绕线架B上,前述绝缘片S1、S2则分别设置于绕线架B的上、下两侧,且位于铁芯单元C以及导线单元W之间,用以电性隔离导线单元W以及铁芯单元C,从而可防止跳火(flashover)的情况产生。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.

此外,由图1、3、4、5、6中可以清楚地看出,前述绕线架B具有一中空的本体B1,且在本体B1的上、下两侧分别形成有圆弧状且朝外侧凸出的外缘部B2,其中铁芯单元C于组装后会延伸通过本体B1中央并且围绕导线单元W以及绕线架B(如图3所示)。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 ).

需特别说明的是,前述绕线架B的本体B1具有一中心轴B0,且前述外缘部B2是由本体B1的两端朝水平方向凸出于本体B1。此外,在本体B1顶侧的外缘部B2的连接面B21上还形成有至少一限位部B3,其中前述限位部B3是朝水平方向凸出于外缘部B2,且限位部B3在Z轴方向上的高度是高于外缘部B2。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.

具体而言,前述水平方向垂直于中心轴B0,并且平行于XY平面,而前述中心轴B0则是平行于Z轴且垂直于XY平面。在本实施例中,前述外缘部B2是自绕线架B的本体B1朝外侧延伸约0.5~3mm,较佳为1~2mm。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.

请继续参阅图1~6,位于绕线架B底侧的另一外缘部B2同样是朝水平方向凸出于本体B1,且在该外缘部B2下方的连接面B21上形成有两个脚座B4(参见图5),其中一个脚座B4的底侧设有引脚B5,借此可用以固定导线。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.

应了解的是,位在绕线架B顶侧及底侧的两个外缘部B2的连接面B21于组装后是朝向铁芯单元C(如图3所示)。如前所述,本实施例可透过由前述外缘部B2以及限位部B3、B4所形成的阶梯状结构(如图6所示),以增加绕线架B周围的可绕线空间,同时可将导线单元W稳定地限制并固定在绕线架B上的一既定位置,从而有效防止导线单元W自绕线架B脱落。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.

接着请一并参阅图7、8、9、10、11,其中图7表示导线单元W的内导线部W1缠绕于绕线架B的本体B1时的立体图,图8表示导线单元W的外导线部W2缠绕于绕线架B后凸出于外缘部B2的立体图,图9表示将绝缘片S1、S2以及导线单元W组装于绕线架B后的立体图,图10表示将绝缘片S1、S2以及导线单元W组装于绕线架B后的剖视图,图11表示沿图2中的线段A3-A4的剖视图。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 .

如图7所示,在将导线单元W缠绕于绕线架B的过程中,导线单元W的内导线部W1首先会被缠绕并限制在绕线架B的本体B1和两个外缘部B2所形成的凹槽内。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.

又,从图8、9、10中可以看出,在将导线单元W完全缠绕于绕线架B之后,导线单元W的外导线部W2会凸出于绕线架B的外缘部B2,且当沿水平方向(X轴方向)观察时可以看出,导线单元W的外导线部W2会与绕线架B上、下两侧的外缘部B2部分重叠(如图10所示)。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 ).

需特别说明的是,当导线单元W被完整地安装在绕线架B上时,导线单元W的外导线部W2是围绕内导线部W1以及绕线架B的外缘部B2,且导线单元W的外导线部W2在Z轴方向上会被局限在限位部B3以及脚座B4之间,借以将导线单元W固定于绕线架B上的一既定位置。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.

接着,可再将两个绝缘片S1、S2分别安装于绕线架B的外缘部B2的连接面B21上(如图9、10所示)。在本实施例中,前述绝缘片S1、S2是具有软性材质(例如绝缘胶带或麦拉片),并且夹设于绕线架B的外缘部B2以及铁芯单元C之间,其中绝缘片S1、S2在水平方向上的最大宽度是大于外缘部B2以及导线单元W在水平方向上的最大宽度,意即绝缘片S1、S2在水平方向上会凸出于外缘部B2以及导线单元W(图9),借此可完整覆盖住导线单元W的上、下两侧,以确保导线单元W和铁芯单元C之间不会产生跳火(flashover)的情形。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.

从图3、11中可以看出,在将铁芯单元C、绝缘片S1、S2以及导线单元W安装于绕线架B上并组成前述变压器结构100之后,导线单元W的外导线部W2在Z轴方向上的缠绕高度会明显大于内导线部W1在Z轴方向上的缠绕高度,如此一来不仅可大幅提升导线单元W整体的绕线圈数以提升变压器结构100的效能,同时导线单元W的外导线部W2在Z轴方向上也会受到限位部B3以及脚座B4的限制,而不致于使导线单元W从绕线架B上脱落,从而能够兼具有固定导线的效果。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.

具体而言,本实施例通过使导线单元W的一部分(外导线部W2)围绕外缘部B2,可增加绕线架B周围的可绕线空间以提升变压器结构100的整体效能,其中导线单元W的该部分(外导线部W2)在水平方向上会位在铁芯单元C以及绕线架B的外缘部B2之间(图3)。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 ).

虽然本实用新型的实施例及其优点已揭露如上,但应该了解的是,任何所属技术领域中具有通常知识者,在不脱离本实用新型的精神和范围内,当可作更动、替代与润饰。此外,本实用新型的保护范围并未局限于说明书内所述特定实施例中的制程、机器、制造、物质组成、装置、方法及步骤,任何所属技术领域中具有通常知识者可从本实用新型揭示内容中理解现行或未来所发展出的制程、机器、制造、物质组成、装置、方法及步骤,只要可以在此处所述实施例中实施大抵相同功能或获得大抵相同结果皆可根据本实用新型使用。因此,本实用新型的保护范围包括上述制程、机器、制造、物质组成、装置、方法及步骤。另外,每一权利要求构成个别的实施例,且本实用新型的保护范围也包括各个权利要求及实施例的组合。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.

虽然本实用新型已以较佳实施例揭露于上,然其并非用以限定本实用新型,任何熟悉此项工艺者,在不脱离本实用新型的精神和范围内,当可作些许的更动与润饰,因此本实用新型的保护范围当视所附的权利要求书所界定的范围为准。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.
CN202220505625.3U 2022-03-10 2022-03-10 Transformer structure Active CN217086350U (en)

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