TWM491930U - Transformer structure - Google Patents

Description

Transformer structure 【0001】

This creation relates to a transformer, especially a transformer structure that can be made into a low profile.

【0002】

In general, many magnetic components, such as transformers, inductive components, etc., are often provided in electrical equipment. However, most of the conventionally used transformers are Bobbin or Coil assembly, and are realized by Bobbin winding. This method causes the wire winding window area to shrink and the utilization rate to decrease. Therefore, it does not conform to the trend of the current small size and thinness of the electronic device, and at the same time hinders the assembly of the transformer.

[0003]

In order to cope with the trend of thinning the electrical equipment, the transformer is bound to reduce the height or simplify the structure to reduce the overall volume of the electrical equipment. However, the winding frame in the transformer has only a few standard specifications, and it is difficult to change the appearance of the winding frame, which also makes the transformer application less flexible. Furthermore, since the winding used for the transformer often uses a single-core or a multi-strand enameled wire, the shape of the above-mentioned wire is mostly circular, and the number of currents to be carried is not high except for the way of winding the wire, so it is not suitable for a thin product. application.

[0004]

In view of this, how to solve the problem that the traditional transformer structure is not easy to change and the number of the carrier current is not high is an urgent problem to be solved in the industry.

[0005]

The main purpose of this creation is to provide a transformer structure that can carry a high current amount while achieving a thinner thickness.

[0006]

To achieve the above object, the present invention provides a transformer structure including a first conductive sheet, a second conductive sheet, a circuit board, and a core group. The first conductive sheet is provided with a first through hole. The second conductive sheet is disposed opposite to the first conductive sheet, and the second conductive sheet is provided with a second through hole. The circuit board is disposed in alignment with the first conductive sheet and the second conductive sheet. The circuit board is provided with at least one winding, a positioning portion and a third through hole. The positioning portion abuts the first conductive sheet and positions the first conductive sheet on the circuit board. The iron core group electromagnetically couples the first conductive sheet, the circuit board and the second conductive sheet. The iron core group is respectively provided with a first through hole, a second through hole and a third through hole, and covers the first conductive sheet, the circuit board and the second conductive sheet.

【0007】

The creation also has the following effects: a circuit board made of a multi-layer board replaces the structure of the bobbin and the winding, and is matched with a flat copper-plated coil to reduce the height to achieve a thinned structure, and at the same time improve product utilization. At the output voltage end of the present invention, the groove of the circuit board accommodates the pin of the first conductive piece, and further overlaps with the pin of the second conductive piece, so that the overall area of the transformer is reduced, which is more conducive to subsequent transformer packaging/ Assembly work.

[0029]

100‧‧‧Transformer structure

[0030]

110‧‧‧First conductive sheet

[0031]

112‧‧‧First conductive sheet body

[0032]

114‧‧‧First perforation

[0033]

116‧‧‧ first gap

[0034]

118, 120‧‧‧ first end

[0035]

122, 124‧‧‧ first pin

[0036]

126‧‧‧First convex end

[0037]

128‧‧‧First corner end

[0038]

130‧‧‧ boards

[0039]

132‧‧‧ third perforation

[0040]

134‧‧‧ Positioning Department

[0041]

136‧‧‧ jack

[0042]

138‧‧‧through holes

[0043]

140‧‧‧Electrical terminals

[0044]

142‧‧‧parallel

[0045]

150‧‧‧Second conductive sheet

[0046]

152‧‧‧Second conductive sheet body

[0047]

154‧‧‧Second perforation

[0048]

156‧‧‧ second gap

[0049]

158, 160‧‧‧ second end

[0050]

162, 164‧‧‧ second pin

[0051]

166‧‧‧Second convex end

[0052]

168‧‧‧second corner end

[0053]

200‧‧‧ iron core group

[0054]

210‧‧‧First core

[0055]

212‧‧‧first pillar

[0056]

214‧‧‧First accommodating slot

[0057]

220‧‧‧second core

[0058]

222‧‧‧second core column

[0059]

224‧‧‧Second accommodating slot

[0060]

300‧‧‧Insulation diaphragm

[0061]

310‧‧‧fourth perforation

[0008]

FIG. 1 is a perspective view showing the structure of the transformer of the present invention.

【0009】

FIG. 2 is an exploded perspective view of FIG. 1. FIG.

[0010]

FIG. 3 is a partial perspective view showing the iron core group which has not been assembled in the present creation.

[0011]

FIG. 4 is a schematic view showing another angle of the assembled iron core assembly of the present invention.

[0012]

FIG. 5 is a schematic view showing still another angle of the assembled iron core set of the present invention.

[0013]

Figure 6 is a cross-sectional view showing the structure of the present transformer.

[0014]

The detailed description and technical content of the present invention are described below with reference to the drawings, but the drawings are only for reference and explanation, and are not intended to limit the creation.

[0015]

As shown in FIG. 1 to FIG. 4 , the present invention provides a transformer structure 100 including a first conductive sheet 110 , a second conductive sheet 150 , a circuit board 130 , and a core assembly 200 . The first conductive sheet 110 and the second conductive sheet 150 are respectively flat copper wire coils (ie, a single piece of copper), but are not limited thereto. Since the flat copper wire coil has a large winding window area Aw, the area of the copper wire coil can be changed according to the requirement if the core area Ae is constant, so that a larger current or output power AP can be carried. (Aw‧Ae=AP, Aw is the copper window area, Ae is the core area, AP is the output power)

[0016]

The first conductive sheet 110 further includes a first conductive sheet body 112 , a first through hole 114 , a first notch 116 , two first ends 118 , 120 , and two first pins 122 , 124 . In a preferred embodiment, the first conductive sheet 110 is annular in shape. In other embodiments, the first conductive sheet 110 may also be rectangular, polygonal or other suitable shape. The first through hole 114 is formed at the center of the first conductive body 112. The two first ends 118, 120 are parallel to the first conductive sheet body 112 and are respectively spaced by the first notches 116.

[0017]

Each of the first pins 122 and 124 is integrally formed with the first conductive sheet body 112. The first notch 116 is also formed between the two first pins 122 and 124. Each of the first pins 122 and 124 is bent from the opposite ends 118 and 120 of the first conductive sheet 110. Further, the first pin 122 is bent from the first end portion 118 perpendicular to the first conductive sheet body 112, wherein the first convex end portion 126 is further disposed at the end of the first pin 122. The first pin 124 is bent from the first end portion 120 perpendicular to the first conductive sheet body 112. The first corner end 128 is disposed at the end of the first pin 124. As shown in FIG. 2, each of the first pins 122, 124 is arranged in a line, that is, the first convex end portion 126 and the first notched end portion 128 are arranged in a line.

[0018]

The second conductive sheet 150 is disposed opposite to the first conductive sheet 110, and the detailed relationship will be described later. The second conductive sheet 150 further includes a second conductive sheet body 152, a second through hole 154, a second notch 156, two second end portions 158 and 160, and two second pins 162 and 164. In a preferred embodiment, the second conductive sheet 150 is annular in shape. In other embodiments, the first conductive sheet 110 may also be rectangular, polygonal or other suitable shape. The second through hole 154 is formed at the center of the second conductive body 152. The two second ends 158, 160 are parallel to the second conductive sheet body 152 and are spaced apart by a second notch 156, respectively.

[0019]

Each of the second pins 162 and 164 is integrally formed with the second conductive sheet body 152. The second notch 156 is also formed between the two second pins 162 and 164. Each of the second pins 162 and 164 is bent from both end portions 158 and 160 of the second conductive sheet 150. Further, the second pin 162 is bent from the second end portion 158 perpendicular to the second conductive sheet body 152, wherein the second convex end portion 166 is disposed at the end of the second pin 162. The second pin 164 is bent from the second end portion 160 perpendicular to the second conductive sheet body 152. The second corner end 168 is disposed at the end of the second pin 164.

[0020]

As shown in FIG. 2, each of the second pins 162, 164 is arranged in a line, that is, the second convex end portion 166 and the second notched end portion 168 are arranged in a line. As shown in FIG. 3 or FIG. 4, each of the first pins 122, 124 and each of the second pins 162, 164 are arranged in a line. In other words, the first convex end portion 126 and the first corner end portion 128 are arranged in line, and the second convex end portion 166 and the second notched end portion 168 are arranged in another straight line. Thus, the size (volume) of the transformer structure 100 in the width is effectively controlled, and the volume is not increased due to the misalignment between the first pins 122, 124 or the respective second pins 162, 164.

[0021]

The circuit board 130 is disposed between the first conductive sheet 110 and the second conductive sheet 150 in this embodiment. However, in other different embodiments, the circuit board 130 may also be disposed on one side (ie, the upper side or the lower side) of the first conductive sheet 110 and the second conductive sheet 150 in alignment. The circuit board 130 described herein is preferably a multilayer circuit substrate. The characteristics of the coils and/or windings (not shown) of each circuit board 100 are used as the primary side of the transformer structure 100, and the secondary side is the conductive sheets 110, 150 disposed on the upper and lower sides of the circuit board 130, respectively. However, the primary side and the secondary side are not limited to this, and can be set differently according to requirements. Therefore, in the embodiment, the transformer structure 100 can achieve the purpose of voltage conversion on the secondary side after the electromagnetic interaction of the magnetic core group 200 by the primary side input voltage.

[0022]

The circuit board 130 is further provided with a third through hole 132. The third through holes 132 are preferably disposed corresponding to the first through holes 114 and the second through holes 154 respectively, so that the first through holes 114, the second through holes 154, and the third through holes 132 communicate with each other to form a through hole 138. As shown in FIG. 2 and FIG. 3, the circuit board 130 is further provided with a positioning portion 134 on one side and two sockets 136 on the other side. In the embodiment, the positioning portion 134 is preferably a recess for receiving the first pins 122 and 124. However, in other different embodiments, the positioning portion 134 may also be a hole (not shown) for each of the first pins 122, 124 to be directly inserted. Therefore, the positioning portion 134 further overlaps the first pin 122 of the first conductive sheet 110 and the second pin 162 of the second conductive sheet 150, so that the overall area of the transformer structure 100 can be reduced, and the first pin 122 is used. The second pin 162 is in a limiting relationship, so that the first conductive sheet 110 and the second conductive sheet 150 can be simultaneously positioned without further positioning on the circuit board, which is more conducive to subsequent packaging/assembly operations.

[0023]

As shown in FIG. 3 and FIG. 4 , after the first conductive sheet 110 and the second conductive sheet 150 are respectively assembled on both sides of the circuit board 130 , the first pins 122 , 124 and the second conductive sheet 150 of the first conductive sheet 110 . The second pins 162, 164 are arranged in a line. Further, the first convex end portion 126 of the first conductive sheet 110 and the first corner end portion 128 and the second convex end portion 166 and the second corner end portion 168 of the second conductive sheet 150 may be arranged. A straight line that facilitates subsequent packaging/assembly operations. Since the first convex end portion 126 and the second convex end portion 166 have the same polarity, they can be disposed to overlap each other, thereby electrically connecting the first conductive sheet 110 and the second conductive sheet 150.

[0024]

In addition, for the subsequent packaging operation of the transformer structure 100, the first convex end portion 126 and the second convex end portion 166 are shaped into the same shape, which is convenient for the operator to identify and perform subsequent operations, and at the same time, the first defect is separated. The corner end portion 128 and the second corner end portion 168. In the embodiment shown in FIG. 3 and FIG. 4, the first conductive strip 110 and the second conductive strip 150 are arranged in a row of three pins, and the polarities are positive, negative, and positive, respectively, but are not limited thereto. .

[0025]

As shown in FIG. 5 and FIG. 6, the circuit board 130 further has two conductive terminals 140. The conductive terminals 140 are respectively inserted into the insertion holes 136 of the circuit board 130 and have parallel segments 142 and insertion segments 144, respectively. Parallel section 142 is perpendicular to insertion section 144, with parallel section 142 resting against the upper edge of circuit board 130. As shown, each of the conductive terminals 140 is offset from the receptacle 136 of the circuit board 130 and serves as a voltage input. Each of the conductive terminals 140 has a sheet-like structure, but the shape is not limited to withstand a relatively high amount of current.

[0026]

As shown in FIG. 2 and FIG. 6, the core group 200 electromagnetically couples the first conductive sheet 110, the second conductive sheet 150, and the circuit board 130, and penetrates or partially penetrates the first through hole 112, the second through hole 152, and the third portion. Perforation 132. The magnetic core group 200 may be an EE type iron core or an RM type iron core, but is not limited thereto. The core group 200 includes a first core 210 and a second core 220. The first core 210 includes a first stem 212 and a first receiving slot 214. The second core 220 includes a second stem 222 and a second receiving slot 224. The first stem 212 and the second stem 222 are disposed through the through hole 138 while covering the first conductive sheet 110, the circuit board 150, and the second conductive sheet 130. The first accommodating groove 214 and the second accommodating groove 224 respectively receive the first conductive sheet 110 and the second conductive sheet 150, and are assembled to the transformer structure 100 of the embodiment.

[0027]

It should be emphasized here that an insulating film 300, such as a mylar film, is disposed between each of the conductive sheets 110, 150, the circuit board 130, and the core group 200 to insulate the respective elements from each other. A fourth through hole 310 is further defined in each of the insulating film sheets 300, and is disposed corresponding to the first through hole 114, the second through hole 154, and the third through hole 132, respectively. Therefore, when the first stem 212 and the second stem 222 of the core set 200 are in the series of the conductive sheets 110 and 150 and the circuit board 200, the fourth through hole 310 of each of the insulating films 300 needs to be further penetrated, so that the assembly cost is implemented. Example transformer structure 100.

[0028]

The features and spirit of the present invention are more clearly described in the above detailed description of the preferred embodiments, and the scope of the present invention is not limited by the preferred embodiments disclosed herein. On the contrary, the objective is to cover a variety of changes and equivalence arrangements within the scope of the patent application to which the present invention is intended.

100‧‧‧Transformer structure

110‧‧‧First conductive sheet

118‧‧‧First end

122‧‧‧First pin

130‧‧‧ boards

134‧‧‧ Positioning Department

136‧‧‧ jack

140‧‧‧Electrical terminals

142‧‧‧parallel

146‧‧‧insert paragraph

150‧‧‧Second conductive sheet

158‧‧‧second end

162‧‧‧second pin

200‧‧‧ iron core group

210‧‧‧First core

212‧‧‧first pillar

220‧‧‧second core

222‧‧‧second core column

300‧‧‧Insulation diaphragm

Claims (10)

[Item 1] A transformer structure comprising:
a first conductive sheet, provided with a first through hole;
a second conductive sheet is disposed opposite to the first conductive sheet, and the second conductive sheet is provided with a second through hole;
a circuit board is disposed corresponding to the first conductive sheet and the second conductive sheet, wherein the circuit board is provided with at least one winding, a positioning portion and a third through hole, and the positioning portion abuts the first conductive sheet Positioning the first conductive sheet on the circuit board; and an iron core group electromagnetically coupling the first conductive sheet, the second conductive sheet, and the circuit board, the iron core group penetrating the first through hole, the first The second through hole and the third through hole cover the first conductive sheet, the second conductive sheet and the circuit board. [Item 2] The transformer structure of claim 1, wherein the first conductive sheet further comprises two first pins, each of the first pins is bent from two ends of the first conductive sheet, and the second conductive sheet is further The second second pin is formed, and each of the second pins is bent from both ends of the second conductive sheet. [Item 3] The transformer structure of claim 2, wherein each of the first pins and each of the second pins are arranged in line. [Item 4] The transformer structure of claim 2, wherein each of the first pins comprises a first convex end portion and a first corner end portion, and each of the second pins comprises a second convex portion And a second corner end portion, the second convex end portion and the first convex end portion have the same polarity and overlap. [Item 5] The transformer structure of claim 2, wherein the positioning portion is disposed on a side of the circuit board as a recess, and the recess is configured to receive each of the first pins. [Item 6] The transformer structure of claim 4, wherein the first convex end portion and the first notched end portion are arranged in line, and the second convex end portion and the second notched end portion are also arranged in a line. [Item 7] The transformer structure of claim 1, wherein the circuit board further comprises two conductive terminals and two jacks, each of the jacks being disposed on the other side of the positioning portion, wherein the conductive terminals are respectively inserted in the circuit board Each of the jacks. [Item 8] The transformer structure of claim 7, wherein each of the conductive terminals has a parallel segment and an insertion segment, the parallel segment being perpendicular to the insertion segment, the parallel segment resting against the upper edge of the circuit. [Item 9] The transformer structure of claim 7, wherein each of the conductive terminals is offset on the circuit board. [Item 10] The transformer structure of claim 1, further comprising a plurality of insulating films, each of the insulating films being respectively disposed between the first conductive sheet, the second conductive sheet, the circuit board and the core group, wherein each The insulating film is further provided with a fourth through hole corresponding to the first through hole, the second through hole and the third through hole.