Magnetic integrated transformer
By adjusting the thickness of the intermediate magnetic block and the setting of the winding slot, the problems of large size, large leakage flux, and inconvenient leakage inductance adjustment of existing magnetic integrated transformers have been solved, and simple and accurate adjustment of leakage inductance has been achieved.
Patent Information
- Application Number
- CN202520164763.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing magnetic integrated transformers are large in size, have high leakage flux, low efficiency, and are inconvenient to change leakage inductance.
The leakage inductance of the magnetic integrated transformer can be adjusted by changing the thickness of the two sides of the middle magnetic block closest to the outer magnetic core. The left and right magnetic blocks have the same structure and are inserted into the winding bracket respectively. Horizontal or vertical magnetic integrated transformers can be realized by combining different settings of the winding slots.
The leakage inductance adjustment of the magnetic integrated transformer is simple and highly accurate, with a simple structure and easy improvement.
Smart Images
Figure CN223784982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a magnetic integrated transformer. Background Technology
[0002] Magnetic integration technology integrates two or more discrete magnetic components (DMs), such as inductors and transformers, into a single magnetic core, structurally combining them. This reduces the size and weight of magnetic components and can sometimes reduce current ripple, lower magnetic losses, and improve power supply dynamic performance, which is significant for enhancing power supply performance and power density. However, existing magnetically integrated transformers are large, have high leakage flux, and low efficiency, and modifying the transformer's leakage inductance is quite complex. Utility Model Content
[0003] To address the cumbersome process of modifying leakage inductance in existing magnetically integrated transformers, this invention provides a magnetically integrated transformer. The specific technical solution of this invention is as follows:
[0004] A magnetic integrated transformer includes: a winding bracket, a central magnetic block, a left magnetic block, and a right magnetic block. The winding bracket has a slot, the central magnetic block is disposed in the slot, and the central magnetic block has a through hole. The left and right magnetic blocks have the same structure and are respectively disposed on the winding bracket by insertion. The left magnetic block includes a central magnetic core and an outer magnetic core. The central magnetic core is disposed in the through hole. The thickness of the central magnetic block on both sides closest to the outer magnetic core is 1.5 mm.
[0005] Furthermore, the winding bracket includes winding grooves, which are respectively disposed on the left and right sides of the slot, and the left magnetic block and the right magnetic block are inserted into the winding bracket from the left and right sides respectively.
[0006] Furthermore, the winding bracket includes winding grooves, which are respectively disposed on the upper and lower sides of the slot, and the left magnetic block and the right magnetic block are inserted into the winding bracket from the upper and lower sides respectively.
[0007] Furthermore, the through hole is elliptical or circular.
[0008] Furthermore, the intermediate magnetic block is trapezoidal in shape.
[0009] A magnetic integrated transformer includes: a winding bracket, a central magnetic block, a left magnetic block, and a right magnetic block. The winding bracket has a slot, the central magnetic block is disposed in the slot, and the central magnetic block has a through hole. The left and right magnetic blocks have the same structure and are respectively disposed on the winding bracket by insertion. The left magnetic block includes a central magnetic core and an outer magnetic core. The central magnetic core is disposed in the through hole. The thickness of the central magnetic block on both sides closest to the outer magnetic core is 3.5 mm.
[0010] Furthermore, the winding bracket includes winding grooves, which are respectively disposed on the left and right sides of the slot, and the left magnetic block and the right magnetic block are inserted into the winding bracket from the left and right sides respectively.
[0011] Furthermore, the winding bracket includes winding grooves, which are respectively disposed on the upper and lower sides of the slot, and the left magnetic block and the right magnetic block are inserted into the winding bracket from the upper and lower sides respectively.
[0012] Furthermore, the through hole is elliptical or circular.
[0013] Furthermore, the intermediate magnetic block is trapezoidal in shape.
[0014] Compared with existing technologies, the advantages of this utility model are as follows: The magnetic integrated transformer described in this application changes the leakage inductance of the magnetic integrated transformer by changing the thickness of the two sides of the middle magnetic block closest to the outer magnetic core. The structure is simple, easy to improve, and the leakage inductance of the improved magnetic integrated transformer is more accurate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a horizontal magnetic integrated transformer in one embodiment of the present invention;
[0016] Figure 2 This is an exploded view of a horizontal magnetic integrated transformer in one embodiment of the present invention. Figure 1 ;
[0017] Figure 3 This is a schematic cross-section of a horizontal magnetic integrated transformer in one embodiment of the present invention. Figure 1 ;
[0018] Figure 4 This is an exploded view of a horizontal magnetic integrated transformer in one embodiment of the present invention. Figure 2 ;
[0019] Figure 5 This is a schematic cross-section of a horizontal magnetic integrated transformer in one embodiment of the present invention. Figure 2 ;
[0020] Figure 6 This is a schematic diagram of the structure of a vertical magnetic integrated transformer in one embodiment of the present invention;
[0021] Figure 7 This is an exploded view of a vertical magnetic integrated transformer in one embodiment of the present invention;
[0022] Figure 8 This is a cross-sectional schematic diagram of a vertical magnetic integrated transformer in one embodiment of the present invention;
[0023] Figure 9 This is a schematic diagram showing the dimensions of a magnetically integrated transformer in one embodiment of the present invention. Detailed Implementation
[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0025] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0030] like Figures 1 to 9 As shown, a magnetic integrated transformer includes: a winding bracket 1, a central magnetic block 2, a left magnetic block 3, and a right magnetic block 4. The winding bracket 1 has a slot 5, and winding grooves 6 are provided on both sides of the slot 5. A guide pin 7 is provided at the lower end of the winding bracket 1, and the guide pin 7 connects to the coil in the winding groove 6. The central magnetic block 2 is disposed in the slot 5 and has a through hole 10. The left magnetic block 3 and right magnetic block 4 have the same structure and are respectively disposed on the winding bracket 1 by insertion. The left magnetic block 3 includes a central magnetic core 8 and an outer magnetic core 9. The central magnetic core 8 is disposed in the through hole 10. The thickness of the central magnetic block 2 closest to the outer magnetic core 9 is 1.5 mm. The leakage inductance of this type of magnetic integrated transformer is 1.2 MHz. The central magnetic block 2, left magnetic block 3, and right magnetic block 4 are ferrite magnetic chips or silicon steel sheets. The left magnetic block 3 has a mountain-shaped structure.
[0031] In one embodiment, the winding bracket 1 includes a winding groove 6, which is respectively disposed on the left and right sides of the slot 5. The left magnetic block 3 and the right magnetic block 4 are inserted into the winding bracket 1 from the left and right sides respectively. The magnetic integrated transformer of this structure is a horizontal magnetic integrated transformer.
[0032] In one embodiment, the winding bracket 1 includes a winding groove 6, which is respectively disposed on the upper and lower sides of the slot 5. The left magnetic block 3 and the right magnetic block 4 are inserted into the winding bracket 1 from the upper and lower sides respectively. The magnetic integrated transformer of this structure is a vertical magnetic integrated transformer.
[0033] In one embodiment, the through hole 10 is elliptical or circular. An elliptical through hole 10 can reduce the weight of the intermediate magnetic block 2 and make it easier to control the thickness of the two sides of the intermediate magnetic block 2 closest to the outer magnetic core 9.
[0034] In one embodiment, the intermediate magnetic block 2 is trapezoidal in shape. Alternatively, the lower half can be square, with the upper half having protrusions on both sides and the top. Or, the lower half can be circular, with the upper half having protrusions on both sides and the top.
[0035] A magnetic integrated transformer includes: a winding bracket 1, a middle magnetic block 2, a left magnetic block 3, and a right magnetic block 4. The winding bracket 1 is provided with a slot 5, and the middle magnetic block 2 is disposed in the slot 5. The middle magnetic block 2 is provided with a through hole 10. The left magnetic block 3 and the right magnetic block 4 have the same structure and are respectively disposed on the winding bracket 1 by insertion. The left magnetic block 3 includes a central magnetic core 8 and an outer magnetic core 9. The central magnetic core 8 is disposed in the through hole 10. The thickness of the two sides of the middle magnetic block 2 closest to the outer magnetic core 9 is 3.5 mm. The leakage inductance of this type of magnetic integrated transformer is 2 MHz.
[0036] In one embodiment, the winding bracket 1 includes a winding groove 6, which is respectively disposed on the left and right sides of the slot 5, and the left magnetic block 3 and the right magnetic block 4 are inserted into the winding bracket 1 from the left and right sides respectively.
[0037] In one embodiment, the winding bracket 1 includes a winding groove 6, which is respectively disposed on the upper and lower sides of the slot 5, and the left magnetic block 3 and the right magnetic block 4 are inserted into the winding bracket 1 from the upper and lower sides respectively.
[0038] In one embodiment, the through hole 10 is elliptical or circular.
[0039] In one embodiment, the intermediate magnetic block 2 is trapezoidal in shape.
[0040] To achieve different leakage inductance values in a magnetic integrated transformer, it is only necessary to change the thickness of the two sides of the middle magnetic block 2 closest to the outer magnetic core 9. The structure is simple and easy to implement. Moreover, the leakage inductance of the magnetic integrated transformer can be adjusted from 1.2MH to 400MH.
[0041] The magnetic integrated transformer described in this application changes the leakage inductance of the magnetic integrated transformer by altering the thickness of the two sides of the intermediate magnetic block 2 closest to the outer magnetic core 9. The structure is simple, easy to improve, and the improved magnetic integrated transformer has higher leakage inductance accuracy.
[0042] In the description of this specification, the terms "in one embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The connection methods linked in the description of this specification have significant effects and practical utility.
[0043] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.
Claims
1. A magnetically integrated transformer, characterized in that, include: The winding bracket includes a middle magnetic block, a left magnetic block, and a right magnetic block. The winding bracket has a slot, and the middle magnetic block is disposed in the slot. The middle magnetic block has a through hole. The left and right magnetic blocks have the same structure and are respectively disposed on the winding bracket by insertion. The left magnetic block includes a central magnetic core and an outer magnetic core. The central magnetic core is disposed in the through hole. The thickness of the middle magnetic block on both sides closest to the outer magnetic core is 1.5 mm.
2. The magnetic integrated transformer according to claim 1, characterized in that, The winding bracket includes winding grooves, which are respectively disposed on the left and right sides of the slot. The left magnetic block and the right magnetic block are inserted into the winding bracket from the left and right sides respectively.
3. The magnetic integrated transformer according to claim 1, characterized in that, The winding bracket includes winding grooves, which are respectively disposed on the upper and lower sides of the slot. The left magnetic block and the right magnetic block are inserted into the winding bracket from the upper and lower sides respectively.
4. The magnetic integrated transformer according to claim 1, characterized in that, The through hole is elliptical or circular.
5. The magnetically integrated transformer according to claim 4, characterized in that, The intermediate magnetic block is trapezoidal in shape.
6. A magnetically integrated transformer, characterized in that, include: The winding bracket includes a middle magnetic block, a left magnetic block, and a right magnetic block. The winding bracket has a slot, and the middle magnetic block is disposed in the slot. The middle magnetic block has a through hole. The left and right magnetic blocks have the same structure and are respectively disposed on the winding bracket by insertion. The left magnetic block includes a central magnetic core and an outer magnetic core. The central magnetic core is disposed in the through hole. The thickness of the middle magnetic block on both sides closest to the outer magnetic core is 3.5 mm.
7. The magnetically integrated transformer according to claim 6, characterized in that, The winding bracket includes winding grooves, which are respectively disposed on the left and right sides of the slot. The left magnetic block and the right magnetic block are inserted into the winding bracket from the left and right sides respectively.
8. The magnetically integrated transformer according to claim 6, characterized in that, The winding bracket includes winding grooves, which are respectively disposed on the upper and lower sides of the slot. The left magnetic block and the right magnetic block are inserted into the winding bracket from the upper and lower sides respectively.
9. The magnetically integrated transformer according to claim 6, characterized in that, The through hole is elliptical or circular.
10. The magnetically integrated transformer according to claim 9, characterized in that, The intermediate magnetic block is trapezoidal in shape.