Integrated transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to an integrated transformer which comprises a shell, a magnetic core structure and a coil structure, the coil structure comprises a first primary coil, a second primary coil, a first secondary coil, a second secondary coil and an inductance coil; the magnetic core structure comprises a third magnetic column, and a first magnetic column and a second magnetic column which are symmetrically distributed; the first primary coil and the first secondary coil are both arranged on the first magnetic column in a sleeving mode, the second primary coil and the second secondary coil are both arranged on the second magnetic column in a sleeving mode, and the inductance coil is arranged on the third magnetic column in a sleeving mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to an integrated transformer. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Traditional magnetic component designs can no longer meet the comprehensive requirements of modern electronic equipment for performance, size, and cost; small size, high power, high frequency, integration, intelligence, and high cost-effectiveness have become new requirements for magnetic components.

[0004] Currently, the transformer and inductor can be designed separately or physically integrated together to obtain an integrated transformer. However, the resulting transformer has the defects of large size, high cost, complicated processing and large power loss. Utility Model Content

[0005] To solve the above problems, the utility model proposes an integrated transformer, which combines a single transformer and an inductor design magnetic integration mode into one, forms a common magnetic circuit through the winding structure of the primary coil, secondary coil and inductor coil, and realizes the magnetic integration structural design.

[0006] According to some embodiments, the present invention provides an integrated transformer, which adopts the following technical solutions:

[0007] An integrated transformer comprises a housing and a magnetic core structure and a coil structure arranged within the housing; the coil structure comprises a first primary coil, a second primary coil, a first secondary coil, a second secondary coil and an inductor coil; the magnetic core structure comprises a third magnetic column, and a first magnetic column and a second magnetic column that are symmetrically distributed; the first primary coil and the first secondary coil are both sleeved on the first magnetic column, the second primary coil and the second secondary coil are both sleeved on the second magnetic column, and the inductor coil is sleeved on the third magnetic column.

[0008] As a further technical definition, the first primary coil and the second primary coil are connected in series.

[0009] As a further technical limitation, two ends of the inductor coil are connected to the first secondary coil and the second secondary coil respectively.

[0010] As a further technical definition, the integrated transformer further includes a shell arranged outside the magnetic core structure and the coil structure.

[0011] Furthermore, a shell fixing plate is provided on the shell, and a fixing hole is opened on the edge of the shell fixing plate.

[0012] As a further technical limitation, the first primary coil and the second primary coil are wound in the same direction.

[0013] As a further technical definition, the first primary coil, the second primary coil, the first secondary coil, the second secondary coil and the inductor coil are fixedly connected to the first primary terminal, the second primary terminal, the first secondary terminal, the second secondary terminal and the inductor terminal respectively.

[0014] Furthermore, the integrated transformer also includes a fixed plate, on which are provided a first primary terminal through hole, a second primary terminal through hole, a first secondary terminal through hole, a second secondary terminal through hole and an inductor terminal through hole, which are respectively adapted to the first primary terminal, the second primary terminal, the first secondary terminal, the second secondary terminal and the inductor terminal.

[0015] Furthermore, the fixing plate is provided with fixing bolt holes.

[0016] As a further technical definition, the integrated transformer includes a skeleton, which is arranged around one side of the magnetic core structure.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention adopts a highly integrated packaging structure, which can integrate transformer components together, greatly reducing the space occupied, and is suitable for occasions with limited loading space; the integrated transformer in the present invention has a small volume, and the weight of the components is correspondingly reduced, which can reduce the weight of the entire system and improve the convenience of transportation, installation and use; the power density of the integrated transformer in the present invention is higher than that of traditional coil transformers, which can reduce the volume of components while maintaining the same power output, thereby improving the overall efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a structural diagram of an integrated transformer in an embodiment of the present utility model;

[0021] Figure 2 This is a structural diagram of an integrated transformer in an embodiment of the present utility model;

[0022] Figure 3 This is a structural diagram of an integrated transformer without a housing in an embodiment of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of an integrated transformer without a housing in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of an integrated transformer without a housing in an embodiment of the present utility model;

[0025] Among them, 1. shell; 11. shell fixing plate; 12. fixing hole; 2. skeleton; 3. magnetic core structure; 31. first magnetic column; 32. second magnetic column; 33. third magnetic column; 4. coil structure; 41. first primary coil; 42. second primary coil; 43. first secondary coil; 44. second secondary coil; 45. inductor coil; 5. fixing plate; 51. first primary terminal through hole; 52. second primary terminal through hole; 53. first secondary terminal through hole; 54. second secondary terminal through hole; 55. inductor terminal through hole; 56. fixing bolt hole; 6. terminal structure; 61. first primary terminal; 62. second primary terminal; 63. first secondary terminal; 64. second secondary terminal; 65. inductor terminal. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention, and cannot be understood as a limitation on the present invention.

[0030] In this utility model, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meaning of these terms in this utility model based on specific circumstances, and they should not be construed as limiting this utility model.

[0031] Example

[0032] The embodiment of the utility model introduces an integrated transformer.

[0033] like Figure 1 and Figure 2 The integrated transformer shown includes a housing 1 and a magnetic core structure 3 (not marked in the figure) and a coil structure 4 (not marked in the figure) arranged in the housing 1; a housing fixing plate 11 for fixing the housing 1 and the magnetic core structure 3 is provided on the housing 1, and a fixing hole 12 for fixing the integrated transformer is opened on the edge of the housing fixing plate 11; a fixing plate 5 is provided on one side of the housing fixing plate 11; the coil structure 4 includes a first primary coil 41, a second primary coil 42, a first secondary coil 43, a second secondary coil 44 and an inductor coil 45.

[0034] The first primary coil 41 , the second primary coil 42 , the first secondary coil 43 , the second secondary coil 44 and the inductor coil 45 are fixedly connected to the first primary terminal 61 , the second primary terminal 62 , the first secondary terminal 63 , the second secondary terminal 64 and the inductor terminal 65 , respectively.

[0035] It should be noted that the first primary terminal 61, the second primary terminal 62, the first secondary terminal 63, the second secondary terminal 64 and the inductor terminal 65 all pass through the fixed plate 5, and the fixed plate 5 is provided with a first primary terminal through hole 51, a second primary terminal through hole 52, a first secondary terminal through hole 53, a second secondary terminal through hole 54 and an inductor terminal through hole 55 which are respectively adapted to the first primary terminal 61, the second primary terminal 62, the first secondary terminal 63, the second secondary terminal 64 and the inductor terminal 65.

[0036] In order to achieve a fixed connection between the fixing plate 5 and the magnetic core structure 3 , a fixing bolt hole 56 is further opened on the fixing plate 5 , and the fixing bolts are placed in the opened fixing bolt hole 56 to achieve a fixed connection between the fixing plate 5 and the magnetic core structure 3 .

[0037] like Figure 3 、 Figure 4 and Figure 5As shown, the magnetic core structure 3 is fixed on one side of the skeleton 2, and the magnetic core structure 3 includes a first magnetic column 31, a second magnetic column 32 and a third magnetic column 33; the first magnetic column 31 and the third magnetic column 33 are symmetrically distributed; the first primary coil 41 and the first secondary coil 43 are both sleeved on the first magnetic column 31, the second primary coil 42 and the second secondary coil 44 are both sleeved on the second magnetic column 32, and the inductor coil 45 is sleeved on the third magnetic column 33.

[0038] It should be noted that the coils encased within the first magnetic column 31 are, in this order, the first secondary coil copper foil, the tape, the first primary coil 41, the tape, the first secondary coil copper foil, and the tape, with the two first secondary coil copper foils arranged in parallel. The coil structure of the third magnetic column 33 is identical to that of the first magnetic column 31 and will not be further described in this embodiment.

[0039] The second magnetic column 32 adopts a segmented structure design. In order to increase the air gap of the second magnetic column 32 and improve the heat dissipation of the second magnetic column 32, in this embodiment, each segment structure is separated by an insulating sheet in the second magnetic column 32, and the coils mounted on the second magnetic column 32 all adopt a flat coil structure.

[0040] It should be noted that the first primary coil 41 and the second primary coil 42 are wound in the same direction and connected in series; the two ends of the inductor coil 45 are respectively connected to the first secondary coil 43 and the second secondary coil 44; the first secondary coil 43 and the second secondary coil 44 are connected in series.

[0041] In this embodiment, the outer shell 1 adopts a heat-dissipating aluminum shell, and thermal conductive silicone is encapsulated inside the outer shell 1 to facilitate heat conduction of the product, reduce temperature rise, and improve product conversion efficiency; at the same time, limiting holes can be set on the outer shell 1, which can play a role in positioning and fixing the product, thereby improving the stability of the product under mechanical vibration.

[0042] This embodiment adopts a highly integrated packaging structure, which can integrate transformer components together, greatly reducing the space occupied, and is suitable for occasions with limited loading space; the integrated transformer in the present invention is small in size, and the weight of the components is correspondingly reduced, which can reduce the weight of the entire system and improve the convenience of transportation, installation and use; the power density of the integrated transformer in the present invention is higher than that of traditional coil transformers, which can reduce the size of components while maintaining the same power output, thereby improving the overall efficiency of the system.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0044] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. An integrated transformer, characterized in that: It includes a shell and a magnetic core structure and a coil structure arranged in the shell; the coil structure includes a first primary coil, a second primary coil, a first secondary coil, a second secondary coil and an inductor coil; the magnetic core structure includes a third magnetic column, and a first magnetic column and a second magnetic column that are symmetrically distributed; the first primary coil and the first secondary coil are both sleeved on the first magnetic column, the second primary coil and the second secondary coil are both sleeved on the second magnetic column, and the inductor coil is sleeved on the third magnetic column.

2. An integrated transformer as claimed in claim 1, characterized in that: The first primary coil and the second primary coil are connected in series.

3. An integrated transformer as claimed in claim 1, characterized in that: Two ends of the inductor coil are connected to the first secondary coil and the second secondary coil respectively.

4. An integrated transformer as claimed in claim 1, characterized in that: It also includes a shell arranged outside the magnetic core structure and the coil structure.

5. An integrated transformer as claimed in claim 4, characterized in that: The shell is provided with a shell fixing plate, and the edge of the shell fixing plate is provided with a fixing hole.

6. An integrated transformer as claimed in claim 1, characterized in that: The first primary coil and the second primary coil are wound in the same direction.

7. An integrated transformer as claimed in claim 1, characterized in that: The first primary coil, the second primary coil, the first secondary coil, the second secondary coil and the inductor coil are fixedly connected to the first primary terminal, the second primary terminal, the first secondary terminal, the second secondary terminal and the inductor terminal respectively.

8. An integrated transformer as claimed in claim 7, characterized in that: It also includes a fixing plate, on which are opened a first primary terminal through hole, a second primary terminal through hole, a first secondary terminal through hole, a second secondary terminal through hole and an inductor terminal through hole respectively adapted to the first primary terminal, the second primary terminal, the first secondary terminal, the second secondary terminal and the inductor terminal.

9. An integrated transformer as claimed in claim 8, characterized in that: The fixing plate is also provided with fixing bolt holes.

10. The integrated transformer as claimed in claim 1, characterized in that: It also includes a frame, which is arranged around one side of the magnetic core structure.

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