Magnetic assembly and transformer

Abstract

The utility model provides a kind of magnetic assembly, can improve assembly efficiency and can reduce cost, including sleeve, annular copper sheet and coil winding.Sleeve includes the sleeve body along extension direction extension, sleeve body has opposite first end surface and second end surface and guide ditch, guide ditch from at least one of first end surface and second end surface to extension direction extension.Annular copper sheet includes copper sheet body, convex part and connecting portion, convex part is protruded from the inner periphery of copper sheet body to axial direction and is arranged in guide ditch, connecting portion is protruded outward from the outside of copper sheet body.Coil winding is arranged in sleeve body and is located between two annular copper sheets.A kind of transformer is also mentioned.The transformer of the utility model includes the above-mentioned magnetic assembly.

Description

Technical Field

[0001] This utility model relates to a magnetic component and a transformer, and more particularly to a magnetic component capable of positioning a copper sheet and a transformer having the magnetic component. Background Technology

[0002] Generally, in the assembly process of magnetic components currently on the market, the electroplated copper sheet must be fixed by additional fasteners to ensure that the connecting part of the electroplated copper sheet is positioned in the predetermined position. However, this positioning method increases costs and affects assembly efficiency. Therefore, how to improve the assembly efficiency of magnetic components while reducing costs is a problem that this field is dedicated to exploring. Utility Model Content

[0003] This invention provides a magnetic component that can improve assembly efficiency and reduce costs.

[0004] This utility model provides a transformer that includes the magnetic components described above.

[0005] This utility model discloses a magnetic component, including a sleeve, an annular copper sheet, and a coil winding. The sleeve includes a sleeve body extending along an extension direction, having opposing first and second end faces and a guide groove, the guide groove extending in the extension direction from at least one of the first and second end faces. The annular copper sheet includes a copper sheet body, a protrusion, and a connecting portion. The protrusion protrudes axially from the inner circumference of the copper sheet body and is disposed in the guide groove, while the connecting portion protrudes outward from the outer side of the copper sheet body. The coil winding is disposed on the sleeve body and located between the two annular copper sheets.

[0006] The present invention discloses a transformer comprising a housing, the aforementioned magnetic components, and a magnetic core. The magnetic core is disposed within the housing and includes a central column and side columns, with a sleeve fitted onto the central column.

[0007] In one embodiment of this utility model, the connecting portion has a through hole.

[0008] In one embodiment of the present invention, the guide channel has a first guide channel segment and a second guide channel segment. The first guide channel segment extends from a first end face along the extension direction, and the second guide channel segment extends from a second end face along the extension direction. The first guide channel segment and the second guide channel segment are not connected.

[0009] In one embodiment of this utility model, the first guide channel segment and the second guide channel segment extend along the same straight line.

[0010] In one embodiment of this utility model, the length of the first guide channel segment is different from the length of the second guide channel segment.

[0011] In one embodiment of the present invention, the guide groove extends from the first end face to the second end face along the extension direction.

[0012] In one embodiment of the present invention, at least one of the first guide channel segment and the second guide channel segment is provided with a slot at its tail end, and the slot extends along the circumferential direction.

[0013] In one embodiment of the present invention, the slot includes a protrusion that protrudes from the bottom surface of the slot.

[0014] In one embodiment of the present invention, the aforementioned slot further includes a guide slope, which is located between the protrusion and the first guide groove segment or the second guide groove segment.

[0015] In one embodiment of the present invention, the guide channel has a longitudinal guide channel section and a transverse guide channel section. The longitudinal guide channel section extends from at least one of the first end face and the second end face along the extension direction, and the transverse guide channel section extends from both sides of the longitudinal guide channel section along the circumferential direction.

[0016] In one embodiment of the present invention, the sleeve further includes a stop portion, which protrudes outward from the sleeve body along the extension direction from the first end face and the second end face.

[0017] Based on the above, the magnetic component of the transformer of this utility model includes a sleeve, an annular copper sheet, and a coil winding. The annular copper sheet has a protrusion extending from the inner circumference of the copper sheet body, and the protrusion is disposed in the guide groove of the sleeve. Accordingly, the magnetic component of the transformer of this utility model can position the connecting part of the annular copper sheet without the need for additional fasteners, thereby improving assembly efficiency and reducing costs.

[0018] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a transformer according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 Exploded view of the magnetic core and magnetic components;

[0021] Figure 3 yes Figure 1 A front view of the magnetic core and magnetic components;

[0022] Figures 4A to 4C Show Figure 1 Assembly steps of the magnetic components;

[0023] Figure 5 This is a schematic diagram of the sleeve of a magnetic component according to another embodiment of the present invention;

[0024] Figure 6This is a schematic diagram of the sleeve of a magnetic component according to another embodiment of the present invention;

[0025] Figure 7A This is a schematic diagram of the sleeve of a magnetic component according to another embodiment of the present invention;

[0026] Figure 7B yes Figure 7A A schematic diagram of the sleeve at another angle.

[0027] Explanation of reference numerals in the attached figures

[0028] 10: Transformer;

[0029] 20: Shell;

[0030] 30: Magnetic core;

[0031] 31: Central column;

[0032] 32: Side pillar;

[0033] 33: Groove;

[0034] 100, 100a, 100b, 100c: Magnetic components;

[0035] 110, 110a, 110b, 110c: Sleeves;

[0036] 111: Sleeve body;

[0037] 1111: First end face;

[0038] 1112: Second end face;

[0039] 1113: Guide trench;

[0040] 1113a: First guide trench section;

[0041] 1113b: Second guide channel section;

[0042] 1113c: Longitudinal guide trench section;

[0043] 1113d: Transverse guide trench section;

[0044] 112: Stop section;

[0045] 120: Ring-shaped copper sheet;

[0046] 121: Copper sheet body;

[0047] 122: convex part;

[0048] 123: Connecting part;

[0049] 1231: Through hole;

[0050] 130: Coil winding;

[0051] C: Circumferential direction;

[0052] D1: Direction of extension;

[0053] D2: Axial direction;

[0054] S: Card slot;

[0055] S1: Bump;

[0056] S2: Guide ramp;

[0057] S3: Positioning area. Detailed Implementation

[0058] Figure 1 This is a schematic diagram of a transformer according to an embodiment of the present invention. Please refer to it. Figure 1 The transformer 10 in this embodiment includes a housing 20, a magnetic core 30, and a magnetic assembly 100. The magnetic core 30 is disposed on the housing 20. The magnetic assembly 100 is disposed on the magnetic core 30.

[0059] The structure of the magnetic component 100 in this embodiment is described in detail below.

[0060] Figure 2 yes Figure 1 An exploded view of the magnetic core and magnetic components. Figure 3 yes Figure 1 A front view of the magnetic core and magnetic components. To clearly show the structure of the magnetic component 100, Figure 3 The magnetic core 30 is shown in perspective. Please refer to... Figure 2 and Figure 3 The magnetic component 100 includes a sleeve 110, an annular copper sheet 120, and a coil winding 130. The sleeve 110 includes a sleeve body 111 extending along an extension direction D1. The sleeve body 111 has opposing first end faces 1111 and second end faces 1112. The sleeve body 111 also has a guide groove 1113 extending from the first end face 1111 and / or the second end face 1112 in the extension direction D1. The annular copper sheet 120 includes a copper sheet body 121, a protrusion 122, and a connecting portion 123. The protrusion 122 protrudes from the inner circumference of the copper sheet body 121 in an axial direction D2 and is disposed in the guide groove 1113. The connecting portion 123 protrudes outward from the outer side of the copper sheet body 121 to allow the magnetic component 100 to connect with surrounding electronic components (e.g., plug-in, soldering, etc.). The coil winding 130 is disposed on the sleeve body 111 and located between the two annular copper sheets 120.

[0061] It is worth mentioning that, since the annular copper sheet 120 has a protrusion 122 extending from the inner circumference of the copper sheet body 121, the annular copper sheet 120 can be fixed at a specific position on the sleeve 110, such as the tail end of the guide groove 1113, by setting the protrusion 122 in the guide groove 1113 of the sleeve 110. Accordingly, this invention can fix the annular copper sheet 120 at a specific position on the sleeve 110 without the need for additional fasteners, thereby improving the assembly efficiency of the magnetic component 100 and reducing costs. At the same time, through different guide groove 1113 designs and the installation direction of the annular copper sheet 120, this invention allows the connecting portion 123 of the annular copper sheet 120 to be positioned in different directions, thereby providing more options for connection positions of electronic components around the magnetic component 100 and improving the space utilization possibilities within the device.

[0062] Please refer to Figure 1 and Figure 2 In this embodiment, the magnetic core 30 includes a central post 31 and side posts 32, and a sleeve 110 is fitted onto the central post 31. Preferably, the sleeve 110 further includes a stop portion 112, which protrudes outward from the sleeve body 111 along the extending direction D1 from the first end face 1111 and the second end face 1112. The two stop portions 112 are adapted to be disposed in the two grooves 33 of the magnetic core 30 to securely fix the sleeve 110 to the magnetic core 30.

[0063] In this embodiment, eight annular copper sheets 120 are arranged in pairs on the sleeve body 111 as an illustration. Figure 2 As shown, the annular copper sheets 120 in each group can be configured such that the connecting portions 123 face upwards and downwards respectively, so that each group can be connected to surrounding electronic components in both directions. In other embodiments, depending on different connection position requirements, the connecting portions 123 of the annular copper sheets 120 can all face upwards or all face downwards, or, in some groups, the connecting portions 123 of the annular copper sheets 120 can all face upwards, and the connecting portions 123 of the annular copper sheets 120 of the remaining groups can all face downwards. This utility model does not limit the number or orientation of the annular copper sheets 120 and the connecting portions 123.

[0064] In this embodiment, the number of protrusions 122 of the annular copper sheet 120 is two, and the number of guide grooves 1113 is four (e.g., Figure 3 (Illustrative diagram). Two protrusions 122 are arranged approximately 180 degrees apart along the inner circumference of the copper sheet body 121, and guide grooves 1113 are symmetrically arranged with the axis of the circumference of the sleeve body 111 as the center. This utility model does not limit the number of protrusions 122 and guide grooves 1113; at least one protrusion 122 and one guide groove 1113 are sufficient to achieve the purpose of this utility model.

[0065] In this embodiment, the shape of the protrusion 122 and the cross-sectional shape of the guide groove 1113 are schematically triangular. In other embodiments, the shape of the protrusion 122 and the cross-sectional shape of the guide groove 1113 may be the same, for example, square or semi-circular, or each may have a different shape. This utility model does not limit the shape of the two or whether the two shapes match, as long as the guide groove 1113 can allow the protrusion 122 to pass through.

[0066] Please refer to Figure 3 Preferably, the connecting part 123 in this embodiment has a through hole 1231. When welding, the through hole 1231 can increase the adhesion of the solder and prevent the connecting part 123 from being welded to other electronic components.

[0067] The specific structure of the guide groove 1113 in this embodiment is described in detail below.

[0068] Please refer to Figure 2 , Figure 3 In this embodiment, each of the four guide channels 1113 has a first guide channel segment 1113a and a second guide channel segment 1113b. The first guide channel segment 1113a extends from the first end face 1111 along the extension direction D1, and the second guide channel segment 1113b extends from the second end face 1112 along the extension direction D1. The first guide channel segment 1113a and the second guide channel segment 1113b are not connected. In this embodiment, the first guide channel segment 1113a and the second guide channel segment 1113b extend along the same straight line. Accordingly, at least one annular copper sheet 120 can be disposed at the tail end of the first guide channel segment 1113a from the first end face 1111 via a protrusion 122, and / or at least one annular copper sheet 120 can be disposed at the tail end of the second guide channel segment 1113b from the second end face 1112 via a protrusion 122, thereby being stably positioned on the sleeve body 111.

[0069] Please refer to Figure 2 In this embodiment, the length of the first guide channel segment 1113a is different from the length of the second guide channel segment 1113b. Accordingly, the magnetic component 100 can have different numbers of annular copper sheets 120 at both ends of the sleeve 110 by using first guide channel segments 1113a and second guide channel segments 1113b of different lengths. However, the length relationship between the first guide channel segment 1113a and the second guide channel segment 1113b is not limited to the above, and the lengths of the first guide channel segment 1113a and the second guide channel segment 1113b can be adjusted accordingly based on the number of annular copper sheets 120. For example, when there are only two (or two sets) of annular copper sheets 120, the first guide channel segment 1113a and the second guide channel segment 1113b can also have the same length.

[0070] The assembly steps of the magnetic component 100 in this embodiment are described in detail below.

[0071] Figures 4A to 4C Show Figure 1The assembly steps of the magnetic component. To clearly illustrate the structure of the magnetic component 100, Figure 4A The perspective is different Figure 4B and Figure 4C From that perspective. Please refer to... Figures 4A to 4C First, the protrusion 122 of one or more annular copper sheets 120 is slid from the first end face 1111 into the longer first guide channel section 1113a (e.g., Figure 2 (As shown in the lower left of the sleeve body 111), and the protrusion 122 is positioned at the tail end of the first guide groove section 1113a. Next, the wound coil 130 is fitted from the first end face 1111 onto the sleeve body 111 and positioned next to the aforementioned annular copper sheet 120. Then, the protrusion 122 of another or a group of annular copper sheets 120 is slid from the first end face 1111 into the shorter first guide groove section 1113a (e.g., as shown in the lower left of the sleeve body 111), and the protrusion 122 is positioned at the tail end of the first guide groove section 1113a. Figure 2 (As shown in the upper left of the sleeve body 111), and the protrusion 122 is disposed at the tail end of the first guide groove section 1113a. Then, the annular copper sheet 120 and the coil winding 130 can be disposed on the sleeve body 111 from the second guide groove section 1113b of the second end face 1112 in the same manner to complete the assembly of the magnetic assembly 100.

[0072] Figure 5 This is a schematic diagram of the sleeve of a magnetic assembly according to another embodiment of the present invention. Please refer to... Figure 5 The difference between the sleeve 110a of the magnetic component 100a in this embodiment and the sleeve 110 of the magnetic component 100 in the above embodiment is that the guide groove 1113 in this embodiment extends from the first end face 1111 along the extending direction D1 to the second end face 1112. When assembling the magnetic component 100a, the annular copper sheet 120 and the coil winding 130 can be selectively fitted onto the sleeve body 111 from either the first end face 1111 or the second end face 1112. Compared to the above embodiment, the position of the annular copper sheet 120 in this embodiment is not limited and can be disposed at any location in the guide groove 1113. The lengths of the sleeve body 111 and the guide groove 1113 can be configured according to the number of annular copper sheets 120 and coil windings 130. Figure 5 The remaining configuration and operation of the magnetic component 100a in the illustrated embodiment are the same as or similar to those of the magnetic component 100 in the foregoing embodiments, and will not be described again here.

[0073] Figure 6 This is a schematic diagram of the sleeve of a magnetic assembly according to another embodiment of the present invention. Please refer to... Figure 6The difference between the sleeve 110b of the magnetic component 100b in this embodiment and the sleeve 110 of the magnetic component 100 in the above embodiment is that at least one of the first guide groove section 1113a and the second guide groove section 1113b of the sleeve 110b in this embodiment is provided with a groove S at its tail end, and the groove S extends along the circumferential direction C. Accordingly, when the annular copper sheet 120 slides to the tail end of the first guide groove section 1113a and / or the second guide groove section 1113b, the annular copper sheet 120 can rotate relative to the sleeve body 111 along the circumferential direction C, so that the protrusion 122 rotates into the groove S, so that the annular copper sheet 120 can be more securely positioned.

[0074] Please refer to Figure 6 Preferably, the slot S includes a protrusion S1 that protrudes from the bottom surface of the slot S, ensuring that the protrusion 122 cannot easily reverse and disengage from the positioning area S3 after entering the slot S and passing through the protrusion S1. Furthermore, preferably, the slot S also includes a guide ramp S2 located between the protrusion S1 and the first guide groove segment 1113a or the second guide groove segment 1113b. Accordingly, the protrusion 122 is adapted to be positioned in the positioning area S3 more easily by passing over the protrusion S1 from the first guide groove segment 1113a or the second guide groove segment 1113b through the guide ramp S2.

[0075] In this embodiment, the positioning areas S3 of the first guide channel section 1113a and the second guide channel section 1113b extend along the same straight line. Accordingly, when the annular copper sheet 120 rotates to the positioning area S3, the annular copper sheet 120 disposed in the first guide channel section 1113a and the annular copper sheet 120 disposed in the second guide channel section 1113b can be aligned with each other (connecting portions 123 facing the same direction) or symmetrically (connecting portions 123 facing opposite directions) with the connecting portions 123 disposed.

[0076] Figure 6 The remaining configuration and operation of the magnetic component 100b in the illustrated embodiment are the same as or similar to those of the magnetic component 100 in the foregoing embodiments, and will not be described again here.

[0077] Figure 7A This is a schematic diagram of the sleeve of a magnetic component according to another embodiment of the present invention. Figure 7B yes Figure 7A A schematic diagram of the sleeve at another angle. Please refer to... Figure 7A and Figure 7BThe difference between the sleeve 110c of the magnetic component 100c in this embodiment and the sleeve 110 of the magnetic component 100 in the above embodiment is that the guide groove 1113 of the sleeve 110c in this embodiment has a longitudinal guide groove section 1113c and a transverse guide groove section 1113d. The longitudinal guide groove section 1113c extends from at least one of the first end face 1111 and the second end face 1112 along the extension direction D1, and the transverse guide groove section 1113d extends from both sides of the longitudinal guide groove section 1113c along the circumferential direction C. When the annular copper sheet 120 is provided, after the protrusion 122 slides along the longitudinal guide groove section 1113c to the position of the corresponding transverse guide groove section 1113d, the annular copper sheet 120 can rotate relative to the sleeve body 111 along the circumferential direction C, so that the protrusion 122 rotates to the tail end of the transverse guide groove section 1113d, thereby positioning the annular copper sheet 120.

[0078] In this embodiment, two guide channels 1113 are illustrated, each guide channel 1113 represented by one longitudinal guide channel segment 1113c and four transverse guide channel segments 1113d. Preferably, in order to enable each annular copper sheet 120 to be positioned within the transverse guide channel segments 1113d, in this embodiment, the transverse guide channel segments 1113d of the two guide channels 1113 are designed to be staggered along the extending direction D1, such as... Figure 7B As shown, the annular copper sheet 120 can be positioned at multiple locations on the sleeve body 111.

[0079] Figure 7A and Figure 7B The remaining configuration and operation of the magnetic component 100c in the illustrated embodiment are the same as or similar to those of the magnetic component 100 in the foregoing embodiments, and will not be described again here.

[0080] In summary, the magnetic assembly of the transformer of this invention includes a sleeve, an annular copper sheet, and a coil winding. The annular copper sheet has a protrusion extending from the inner circumference of the copper sheet body, and the protrusion is disposed in the guide groove of the sleeve. Accordingly, the magnetic assembly of the transformer of this invention can position the connecting part of the annular copper sheet without the need for additional fasteners, thereby improving assembly efficiency and reducing costs.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A magnetic component, characterized in that, include: A sleeve includes a sleeve body extending in an extension direction, the sleeve body having opposing first end faces and second end faces and a guide groove extending from at least one of the first end faces and the second end faces in the extension direction. An annular copper sheet includes a copper sheet body, a protrusion, and a connecting portion. The protrusion extends axially from the inner circumference of the copper sheet body and is disposed in the guide groove. The connecting portion protrudes outward from the outer side of the copper sheet body. The coil winding is disposed on the sleeve body and located between the two annular copper sheets.

2. The magnetic component according to claim 1, characterized in that, The connecting part has a through hole.

3. The magnetic component according to claim 1, characterized in that, The guide channel has a first guide channel segment and a second guide channel segment. The first guide channel segment extends from the first end face along the extension direction, and the second guide channel segment extends from the second end face along the extension direction. The first guide channel segment and the second guide channel segment are not connected.

4. The magnetic component according to claim 3, characterized in that, The first guide channel segment and the second guide channel segment extend along the same straight line.

5. The magnetic component according to claim 3, characterized in that, The length of the first guide channel segment is different from the length of the second guide channel segment.

6. The magnetic component according to claim 1, characterized in that, The guide groove extends from the first end face along the extension direction to the second end face.

7. The magnetic component according to claim 3, characterized in that, At least one of the first guide channel section and the second guide channel section is provided with a slot at its tail end, and the slot extends in the circumferential direction.

8. The magnetic component according to claim 7, characterized in that, The slot includes a protrusion that protrudes from the bottom surface of the slot.

9. The magnetic component according to claim 8, characterized in that, The slot also includes a guide ramp, which is located between the protrusion and the first guide groove segment or the second guide groove segment.

10. The magnetic component according to claim 1, characterized in that, The guide channel has a longitudinal guide channel section and a transverse guide channel section. The longitudinal guide channel section extends from at least one of the first end face and the second end face along the extension direction, and the transverse guide channel section extends from both sides of the longitudinal guide channel section along the circumferential direction.

11. The magnetic component according to claim 1, characterized in that, The sleeve also includes a stop portion, which protrudes outward from the sleeve body along the extending direction from the first end face and the second end face.

12. A transformer, characterized in that, include: case; The magnetic component as claimed in any one of claims 1 to 11; and A magnetic core is disposed in the housing, the magnetic core includes a central column and side columns, and the sleeve is sleeved on the central column.

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