Magnetic integrated transformer

Abstract

The utility model discloses a magnetic integrated transformer which is formed by integrating a voltage transformation unit and an inductance unit, and a base is fixedly arranged at the bottom of the voltage transformation unit and the bottom of the inductance unit. The voltage transformation unit comprises a plurality of first magnetic core elements and first edge magnetic elements, the first magnetic core elements are sequentially connected end to end to form a first frame, a first mounting space is formed between every two first magnetic core elements, and a voltage transformation unit magnetic core is arranged in each first mounting space; the first edge magnetic element is connected to the top of the first frame; the transformer is formed by integrating a plurality of transformation units and inductance units, and when the transformation units and the inductance units are formed, a common surface is arranged for magnetic core elements, so that the volume and the weight of the inherited transformer are reduced, and the efficiency and the power density of the integrated transformer are improved; the size of the air gap between the magnetic core and the magnetic column in the transformer is set to be an adjustable structure, so that required excitation inductance and resonance inductance can be obtained through adjustment.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and particularly relates to a magnetically integrated transformer. Background Art

[0002] Traditional inductor and transformer designs have drawbacks such as low efficiency and large occupied volume of the transformer. Since a large number of electromagnetic components are provided inside, the connection of two complete electromagnetic components is required to form a magnetic field, resulting in a large occupied volume and high loss of the transformer. In addition, since the size of the air gap formed in the magnetic core cannot be adjusted, the required exciting inductance and resonant inductance cannot be obtained. Summary of the Utility Model

[0003] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a magnetically integrated transformer.

[0004] The technical solution adopted by the utility model is as follows: The transformer is integrated by a voltage conversion unit and an inductor unit, and a base is fixedly provided at the bottom of the voltage conversion unit and the inductor unit;

[0005] The voltage conversion unit includes a plurality of first magnetic core elements and a first side magnetic element. The plurality of first magnetic core elements are connected end to end in sequence to form a first frame. A first installation space is formed between two of the first magnetic core elements. A voltage conversion unit magnetic core is provided in the first installation space, and the first side magnetic element is connected to the top of the first frame;

[0006] The inductor unit includes a plurality of inductor magnetic core elements and a second side magnetic element. The plurality of inductor magnetic core elements are connected end to end in sequence to form a second frame. A second installation space is formed between two of the inductor magnetic core elements. An inductor unit magnetic core is provided in the second installation space, and the second side magnetic element is connected to the top of the second frame.

[0007] As a preference of the utility model, a first through groove is provided at the bottom of the first frame. The first through groove penetrates the first frame. The first magnetic core element includes a first U-shaped magnet, and a connecting magnet is fixedly provided on each of the first U-shaped magnets. The connecting magnet is fixedly connected to the first U-shaped magnet.

[0008] As a preference of the utility model, the voltage conversion unit magnetic core includes a voltage conversion magnetic column. The voltage conversion magnetic column is fixedly connected to the first magnetic core element, and the voltage conversion magnetic column is located in the installation space.

[0009] As a preference of the utility model, a voltage conversion magnetic sheet and a voltage conversion air gap sheet are provided on the voltage conversion magnetic column. The voltage conversion magnetic sheet and the voltage conversion air gap sheet are sleeved on the voltage conversion magnetic column in sequence, and a coil is wound around the circumferences of the voltage conversion magnetic sheet and the voltage conversion air gap sheet.

[0010] As a preference of the present utility model, an inductance magnetic column is provided inside the inductance magnetic core component. The inductance magnetic column is fixedly connected to the inductance magnetic core component. An inductance magnetic sheet and an inductance air gap sheet are provided on the inductance magnetic column. The inductance magnetic sheet and the inductance air gap sheet are sleeved on the inductance magnetic column in sequence, and a coil is wound around the inductance magnetic sheet and the inductance air gap sheet.

[0011] As a preference of the present utility model, a second through groove is provided at the bottom of the second frame, and the second through groove penetrates through the second frame.

[0012] As a preference of the present utility model, the base is a transformer unit base, and the transformer unit base is fixedly connected to the bottom of the first frame.

[0013] As a preference of the present utility model, the base is an inductance unit base, and the inductance unit base is fixedly connected to the bottom of the second frame.

[0014] The beneficial effects of the present utility model are as follows:

[0015] As a magnetic integrated transformer, the present utility model integrates a transformer with multiple transformer units and inductance units. When the transformer units and inductance units are formed, by setting a common surface for the magnetic core components, the volume and weight of the integrated transformer are reduced, and the efficiency and power density of the integrated transformer are improved. By setting the air gap size between the magnetic core columns in the transformer to an adjustable structure, it is possible to obtain the required excitation inductance and resonance inductance through adjustment. Through the segmented design scheme of the magnetic core air gap, the problem of large-area magnetic core connection is solved, preventing separation during subsequent use and also reducing eddy current losses, providing a solution for the application of high-power high-frequency LLC resonant converters. By respectively providing a transformer unit base and an inductance unit base at the bottoms of the first frame and the second frame, the eddy current losses of the transformer are reduced while the heat dissipation capacity is improved, reducing losses. Description of the Drawings

[0016] The following further describes the present utility model in detail with reference to the drawings and specific implementation methods.

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the first frame and the second frame of the present utility model;

[0019] Figure 3 is a partial structural schematic diagram of the transformer unit of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the partial structure of the inductance unit of the present utility model.

[0021] In the figure: 1. Transformer unit; 2. Inductor unit; 3. Base

[0022] 11. First magnetic core element; 12. First side magnetic element; 13. First frame; 14. First installation space; 15. Transformer unit magnetic core

[0023] 21. Inductor magnetic core element; 22. Second side magnetic element; 23. Second frame; 24. Second installation space; 25. Inductor unit magnetic core

[0024] 31. Transformer unit base; 32. Inductor unit base

[0025] 111. First U-shaped magnet; 112. Connecting magnet

[0026] 131. First through groove

[0027] 151. Transformer magnetic column; 152. Transformer magnetic sheet; 153. Transformer air gap sheet

[0028] 231. Second through groove

[0029] 251. Inductor magnetic column; 252. Inductor magnetic sheet; 253. Inductor air gap sheet Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0032] The following will be combined with Figures 1-4 to illustrate the detailed implementation manners of the present utility model. A magnetic integrated transformer, the transformer is integrated by a transformer unit 1 and an inductor unit 2, and bases 3 are fixedly arranged at the bottoms of the transformer unit 1 and the inductor unit 2. In the implementation manner, there are two groups of transformer units 1 and two groups of inductor units 2;

[0033] The transformer unit 1 includes a plurality of first magnetic core elements 11 and a first side magnetic element 12. The plurality of first magnetic core elements 11 are connected end to end in sequence to form a first frame 13. A first installation space 14 is formed between two of the first magnetic core elements 11. A transformer unit magnetic core 15 is provided in the first installation space 14. The first side magnetic element 12 is connected to the top of the first frame 13. By connecting the plurality of first magnetic core elements 11 end to end in sequence, when two first magnetic core elements 11 are connected, one surface of one of the first magnetic core elements 11 can be used as the coplanar surface for the connection of the two first magnetic core elements 11 to realize the connection of the two first magnetic core elements 11 to form a first installation space 14. The open end of the first frame 13 is connected by the first side magnetic element 12, and the last first magnetic core element 11 encloses to form the first installation space 14, reducing the weight and volume of the magnetic core elements required for the formation of the first installation space 14, reducing the distance between the transformer unit magnetic cores 15 in the two first installation spaces 14, and effectively improving the efficiency and power density of the integrated transformer;

[0034] The inductor unit 2 includes a plurality of inductor magnetic core elements 21 and a second side magnetic element 22. The plurality of inductor magnetic core elements 21 are connected end to end in sequence to form a second frame 23. In this embodiment, the second frame 23 is composed of two inductor magnetic core elements 21 and a second side magnetic element 22. The two inductor magnetic core elements 21 are connected end to end in sequence to form the second frame 23. The open end of the second frame 23 is connected by the second side magnetic element 22, so that a second installation space 24 is formed inside each inductor magnetic core element 21. An inductor unit magnetic core 25 is installed in the second installation space 24 to form an alternating magnetic field in the second installation space 24. A second installation space 24 is formed between the two inductor magnetic core elements 21. An inductor unit 2 magnetic core is provided in the second installation space 24. The second side magnetic element 22 is connected to the top of the second frame 23.

[0035] Please refer to Figures 1-3 As shown, a first through groove 131 is provided at the bottom of the first frame 13. The first through groove 131 penetrates the first frame 13 to improve the heat dissipation of the transformer unit magnetic core 15 in the first frame 13. The first magnetic core element 11 includes a first U-shaped magnet 111, and a connecting magnet 112 is respectively fixed on the first U-shaped magnet 111. The connecting magnet 112 is fixedly connected to the first U-shaped magnet 111. The connecting magnet 112 serves as the carrier for the connection between the two first U-shaped magnets 111 to reduce the volume and weight of the connection between the two first U-shaped magnets 111. The first through groove 131 reduces the eddy current loss of the transformer and improves the heat dissipation ability, reducing the loss.

[0036] Please refer to Figure 3As shown, the transformer unit core 15 includes a transformer magnetic column 151. The transformer magnetic column 151 is fixedly connected to the first core element 11. The transformer magnetic column 151 is located within the installation space and is fixedly connected within the first installation space 14 for winding an electromagnetic coil.

[0037] Please refer to Figure 3 As shown, a transformer magnetic sheet 152 and a transformer air gap sheet 153 are provided on the transformer magnetic column 151. The transformer magnetic column 151 and the transformer air gap sheet 153 are sleeved on the transformer magnetic column 151 in sequence. The circumferences of the transformer magnetic sheet 152 and the transformer air gap sheet 153 are wound with coils. The transformer magnetic sheet 152 and the transformer air gap sheet 153 are respectively sleeved with the transformer magnetic column 151. The electromagnetic coil is wound around the transformer magnetic column 151 through the transformer magnetic sheet 152 and the transformer air gap sheet 153. Among them, by changing the number of settings of the transformer air gap sheet 153 between two transformer air gap sheets 153, the distance between the two transformer air gap sheets 153 on the transformer magnetic column 151 is adjusted, and then the air gap size between the transformer air gap sheets 153 is changed to obtain the required exciting inductance and resonance inductance. The segmented design scheme of the core air gap solves the problem of large-area core connection, prevents separation during subsequent use, and also reduces eddy current loss, providing a solution for the application of high-power high-frequency LLC resonant converters.

[0038] Please refer to Figure 1 As shown, an inductor magnetic column 251 is provided inside the inductor core element 21. The inductor magnetic column 251 is fixedly connected to the inductor core element 21. An inductor magnetic sheet 252 and an inductor air gap sheet 253 are provided on the inductor magnetic column 251. The inductor magnetic sheet 252 and the inductor air gap sheet 253 are sleeved on the inductor magnetic column 251 in sequence. The inductor magnetic sheet 252 and the inductor air gap sheet 253 are wound with coils. In this embodiment, the inductor unit 2 is composed of two inductor core elements 21 and a second side magnetic element 22. The two inductor core elements 21 are connected end to end in sequence to form a second frame 23, and the second side magnetic element 22 is connected to the open end of the second frame 23, so that two second installation spaces 24 are formed inside the second frame 23 for installing the inductor unit core 25. Among them, the inductor unit core 25 includes an inductor magnetic column 251 fixedly connected inside the second installation space 24, and the inductor magnetic column 251 is sleeved with an inductor magnetic sheet 252 and an inductor air gap sheet 253. In some embodiments, the arrangement modes of the inductor magnetic sheet 252 and the inductor air gap sheet 253 can be arranged differently to obtain different exciting inductances and resonance inductances. In this embodiment, two inductor magnetic sheets 252 are sleeved between every two inductor air gap sheets 253. By changing the number of inductor magnetic sheets 252 between the two inductor air gap sheets 253, the distance between the two inductor air gap sheets 253 is controlled, that is, the air gap size formed between the inductor unit cores 25 inside the second installation space 24 is adjusted.

[0039] Please refer to Figure 4 As shown, a second through groove 231 is provided at the bottom of the second frame 23. The second through groove 231 penetrates through the second frame 23. The second through groove 231 is used to improve the heat dissipation of the inductor unit magnetic core 25 in the second installation space 24, thereby reducing the eddy current loss of the transformer, while improving the heat dissipation capacity and reducing the loss.

[0040] Please refer to Figure 2 As shown, the base 3 is a transformer unit base 31. The transformer unit base 31 is fixedly connected to the bottom of the first frame 13. The transformer unit base 31 is used for the installation of the first U-shaped magnet 111, the connecting magnet 112, and the inductor core element 21. The first U-shaped magnet 111, the connecting magnet 112, and the inductor core element 21 are fixedly connected to the transformer unit base 31. The first frame 13 and the transformer unit base 31 form a transformer unit 1.

[0041] Please refer to Figure 4 As shown, the base 3 is an inductor unit base 32. The inductor unit base 32 is fixedly connected to the bottom of the second frame 23. The inductor unit base 32 is used for the connection of the second side magnetic element 22 and the inductor core element 21. The inductor core element 21 and the second side magnetic element 22 are fixedly connected to the inductor unit base 32 and form an inductor unit 2 with the inductor unit base 32.

[0042] The working principle of the present utility model:

[0043] The transformer is integrated by a transformer unit 1 and an inductor unit 2;

[0044] Connect a connecting magnet 112 to each of the four first U-shaped magnets 111 to form a first magnetic core element 11. Connect them respectively to form three first magnetic core elements 11. Connect the heads and tails of the three first magnetic core elements 11 in sequence. Connect the open ends of the first side magnetic elements 12 to each other to form the first frame 13;

[0045] Among them, when connecting multiple first magnetic core elements 11, sleeved the transformer magnetic sheet 152 and the transformer air gap sheet 153 on the transformer magnetic column 151. According to the requirements of the exciting inductance and the resonant inductance, the number of transformer magnetic sheets 152 between the two transformer air gap sheets 153 can be changed, thereby changing the exciting inductance and the resonant inductance. Wind an electromagnetic coil on the transformer magnetic sheet 152 and the transformer air gap sheet 153 to form a transformer magnetic field;

[0046] Fix the formed first frame 13 to the transformer unit base 31 to form a transformer unit 1;

[0047] Connect the head and tail of two inductive core components 21 in sequence, and connect the end with an opening after connection to the second side magnetic component 22 to assemble and form the second frame 23, and a second installation space 24 is formed inside the second frame 23;

[0048] Among them, when multiple inductive core components 21 are connected, an inductive magnetic sheet 252 and an inductive air gap sheet 253 are sleeved on the inductive magnetic column 251. According to the requirements of the exciting inductance and the resonant inductance, the number of inductive magnetic sheets 252 between the two inductive air gap sheets 253 is changed, so as to change the exciting inductance and the resonant inductance. A coil is wound around the inductive magnetic sheet 252 and the inductive air gap sheet 253 to form an inductive magnetic field;

[0049] Connect the formed second frame 23 to the inductance unit base 32 to form the inductance unit 2.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A magnetic integrated transformer, characterized in that: The transformer is integrated by a voltage transformation unit (1) and an inductance unit (2), and a base (3) is fixedly provided at the bottom of the voltage transformation unit (1) and the inductance unit (2); The voltage transformation unit (1) includes a plurality of first magnetic core elements (11) and a first side magnetic element (12). The plurality of first magnetic core elements (11) are sequentially connected end to end to form a first frame (13). A first installation space (14) is formed between two of the first magnetic core elements (11). A voltage transformation unit magnetic core (15) is provided in the first installation space (14). The first side magnetic element (12) is connected to the top of the first frame (13); The inductance unit (2) includes a plurality of inductance magnetic core elements (21) and a second side magnetic element (22). The plurality of inductance magnetic core elements (21) are sequentially connected end to end to form a second frame (23). A second installation space (24) is formed between two of the inductance magnetic core elements (21). An inductance unit magnetic core (25) is provided in the second installation space (24). The second side magnetic element (22) is connected to the top of the second frame (23).

2. The magnetic integrated transformer according to claim 1, wherein: A first through groove (131) is provided at the bottom of the first frame (13). The first through groove (131) penetrates the first frame (13). The first magnetic core element (11) includes a first U-shaped magnet (111). A connecting magnet (112) is fixedly provided on each of the first U-shaped magnets (111). The connecting magnet (112) is fixedly connected to the first U-shaped magnet (111).

3. A magnetic integrated transformer according to claim 2, characterized in that: The voltage transformation unit magnetic core (15) includes a voltage transformation magnetic column (151). The voltage transformation magnetic column (151) is fixedly connected to the first magnetic core element (11). The voltage transformation magnetic column (151) is located in the installation space.

4. The magnetic integrated transformer according to claim 3, wherein: A voltage transformation magnetic sheet (152) and a voltage transformation air gap sheet (153) are provided on the voltage transformation magnetic column (151). The voltage transformation magnetic sheet (152) and the voltage transformation air gap sheet (153) are sequentially sleeved on the voltage transformation magnetic column (151). Coils are wound around the circumferences of the voltage transformation magnetic sheet (152) and the voltage transformation air gap sheet (153).

5. A magnetic integrated transformer according to claim 1, wherein: An inductance magnetic column (251) is provided in the inductance magnetic core element (21). The inductance magnetic column (251) is fixedly connected to the inductance magnetic core element (21). An inductance magnetic sheet (252) and an inductance air gap sheet (253) are provided on the inductance magnetic column (251). The inductance magnetic sheet (252) and the inductance air gap sheet (253) are sequentially sleeved on the inductance magnetic column (251). Coils are wound around the inductance magnetic sheet (252) and the inductance air gap sheet (253).

6. The magnetic integrated transformer according to claim 5, wherein: A second through groove (231) is provided at the bottom of the second frame (23). The second through groove (231) penetrates the second frame (23).

7. A magnetic integrated transformer according to claim 2, characterized in that: The base (3) is a voltage transformation unit base (31). The voltage transformation unit base (31) is fixedly connected to the bottom of the first frame (13).

8. A magnetic integrated transformer according to claim 1, wherein: The base (3) is an inductance unit base (32). The inductance unit base (32) is fixedly connected to the bottom of the second frame (23).

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