Transformer device and electrical apparatus

Abstract

The application provides a variable voltage device and an electrical equipment. The magnetic core structure of the variable voltage device is installed on the framework structure, the winding structure is wound on the magnetic core structure, the isolation structure is installed on the magnetic core structure, and the isolation structure is arranged between the magnetic core structure and the winding structure. The winding structure comprises a first winding and a second winding. One of the first winding and the second winding is a primary winding, and the other is a secondary winding. The first winding comprises a first sub-winding and a second sub-winding. In a first direction, the second winding is located between the first sub-winding and the second sub-winding. At least part of the isolation structure is arranged between the first sub-winding and the second winding, and at least part of the isolation structure is arranged between the second sub-winding and the second winding. The variable voltage device and the electrical equipment provided by the application can realize the main harmonic integrated design of the variable voltage device, reduce the number of devices, reduce the manufacturing cost, reduce the volume, and reduce the board area and manufacturing process difficulty of the circuit board connected with the variable voltage device.

Description

Technical Field

[0001] This application belongs to the field of transformer design technology, and in particular relates to a transformer device and electrical equipment. Background Technology

[0002] Most existing transformer devices use external resonant inductors, which results in more components and a larger size. This increases the board area occupied by the circuit boards connected to the transformer and the difficulty of manufacturing processes, thus leading to higher manufacturing costs for the transformer devices. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a transformer device and electrical equipment that can achieve an integrated design of the transformer device's main and resonant circuits, reduce the number of components in the transformer device, lower the manufacturing cost of the transformer device, reduce the size of the transformer device, reduce the board area occupied by the circuit board connected to the transformer device and the difficulty of manufacturing process, and make the leakage inductance generated by the winding structure more balanced, which makes it easier to make the leakage inductance into a resonant inductor, and reduce the heat generation of the winding structure and the transformer device.

[0004] On one hand, this application provides a transformer device, including a magnetic core structure, a winding structure, a frame structure, and an isolation structure; the magnetic core structure is mounted on the frame structure, the winding structure is wound around the magnetic core structure, and the isolation structure is mounted on the magnetic core structure and disposed between the magnetic core structure and the winding structure; wherein, the winding structure includes a first winding and a second winding, one of the first winding and the second winding being a primary winding and the other being a secondary winding; the first winding includes a first sub-winding and a second sub-winding, and in a first direction, the second winding is located between the first sub-winding and the second sub-winding, and at least a portion of the isolation structure is disposed between the first sub-winding and the second winding, and at least a portion of the isolation structure is disposed between the second sub-winding and the second winding.

[0005] In one possible implementation, the isolation structure includes a body, a first barrier wall, and a second barrier wall. The body is sleeved on the magnetic core structure. The first barrier wall and the second barrier wall are spaced apart along a first direction. The first barrier wall extends along a second direction perpendicular to the first direction, and the second barrier wall extends along the second direction. In the first direction, the first barrier wall is disposed between the first sub-winding and the second winding, and the second barrier wall is disposed between the second sub-winding and the second winding.

[0006] In one possible implementation, there are multiple first baffles, which are circumferentially spaced on the body around the first direction; a first gap is formed between any two adjacent first baffles around the first direction, and the first gap is used for heat dissipation of the first sub-winding and the second winding; and / or, there are multiple second baffles, which are circumferentially spaced on the body around the first direction; a second gap is formed between any two adjacent second baffles around the first direction, and the second gap is used for heat dissipation of the second sub-winding and the second winding.

[0007] In one possible implementation, the first winding is a primary winding, and the second winding is a secondary winding; the second winding includes a third sub-winding and a fourth sub-winding, and in the first direction, the first sub-winding, the third sub-winding, the fourth sub-winding, and the second sub-winding are arranged sequentially; in the first direction, the first baffle is arranged between the first sub-winding and the third sub-winding, and the second baffle is arranged between the second sub-winding and the fourth sub-winding.

[0008] In one possible implementation, the isolation structure further includes a third retaining wall extending along the second direction; in the first direction, the first retaining wall, the third retaining wall, and the second retaining wall are sequentially spaced apart, with the third retaining wall disposed between the third sub-winding and the fourth sub-winding; in the second direction, the extension length of the third retaining wall is less than the extension length of the first retaining wall, and the extension length of the third retaining wall is less than the extension length of the second retaining wall, with at least a portion of the third sub-winding and at least a portion of the fourth sub-winding exposed above the third retaining wall.

[0009] In one possible implementation, the body is provided with heat dissipation holes, which are located at positions of the first winding and / or the second winding corresponding to the body.

[0010] In one possible implementation, the magnetic core structure includes a plurality of magnetic cores arranged along the first direction, wherein the first sub-winding, the second sub-winding, the third sub-winding and the fourth sub-winding are respectively wound around a corresponding magnetic core; in the first direction, an air gap is formed between two adjacent magnetic cores; in a second direction perpendicular to the first direction, the plurality of air gaps are respectively disposed opposite to the first barrier wall, the second barrier wall and the third barrier wall.

[0011] In one possible implementation, the transformer further includes a connecting bus and an electronic wire, wherein the connecting bus, the first sub-winding and the second sub-winding are connected in series, and the electronic wire, the fourth sub-winding and the third sub-winding are connected in series.

[0012] In one possible implementation, the transformer further includes a current transformer and a signal line, the current transformer being connected in series between the fourth sub-winding and the electronic line, and the signal line being connected to the current transformer.

[0013] In one possible implementation, there are three magnetic core structures, three winding structures, and three isolation structures; the three winding structures are respectively wound around the three magnetic core structures, and each isolation structure is disposed between one magnetic core structure and a corresponding winding structure; each winding structure includes a first winding and a second winding, the three first windings are connected in parallel, and the three second windings are connected in parallel.

[0014] On the other hand, this application provides an electrical device, including: The aforementioned transformer; The circuit board, wherein the transformer is detachably mounted on the circuit board.

[0015] The transformer and electrical equipment provided in this application, on the one hand, isolate the first sub-winding and the second winding of the first winding through an isolation structure. This isolation structure also isolates the second sub-winding and the second winding of the first winding, increasing the spacing between them. This, in turn, increases the leakage inductance of the transformer. The increased leakage inductance can be made into a resonant inductor, achieving a main-resonant integrated design of the transformer, reducing the number of components and lowering manufacturing costs. Furthermore, reducing the number of components reduces the transformer's size, decreasing the board area occupied by the circuit board connected to the transformer and simplifying manufacturing processes. On the other hand, by positioning the first and second sub-windings of the first winding on opposite sides of the second winding in a first direction, the leakage inductance generated by the winding structure becomes more balanced, facilitating the creation of a resonant inductor. Moreover, the placement of the first and second sub-windings on opposite sides of the second winding results in a more balanced winding structure design, reducing heat generation in the winding structure and the transformer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some implementation methods provided by the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an electrical device provided in one embodiment of this application; Figure 2 This is an assembly structure diagram of a transformer device provided in one embodiment of this application; Figure 3 This is a front view of a transformer device provided in an embodiment of this application; Figure 4 This application provides a partial assembly structure for a transformer device according to one embodiment. Figure 1 ; Figure 5 This is a structural diagram of the skeleton structure provided in one embodiment of this application; Figure 6 This is a structural diagram of an isolation structure provided in an embodiment of this application; Figure 7 This application provides a partial assembly structure for a transformer device according to one embodiment. Figure 2 ; Figure 8 This is a structural diagram of a magnetic core structure provided in one embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: Electrical equipment-1000, transformer-100, magnetic core structure-10, magnetic core-11, air gap-12, winding structure-20, first winding-21, first sub-winding-211, second sub-winding-212, second winding-22, third sub-winding-221, fourth sub-winding-222, frame structure-30, mounting position-31, isolation structure-40, body-41, first retaining wall-42, first gap-421, second retaining wall-43, second gap-431, third retaining wall-44, third gap-441, heat dissipation hole-45, first support part-46, fourth gap-461, second support part-47, fifth gap-471, connecting bar-50, electronic wire-60, current transformer-70, signal line-80, circuit board-200. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or it can be in a component in between. When a component is described as "mounted to" another component, it can be directly on the other component or it can be in a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or it can be in a component in between.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. Directional terms mentioned in the description of this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "top surface," "side surface," "bottom surface," "top wall," "side wall," "bottom wall," "inner wall," "outer wall," "axial," "radial," "circumferential," "length direction," "width direction," "height direction," etc., are merely for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the application. In the description of this application, terms such as "first," "second," "third," "fourth," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0022] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Please see Figure 1 , Figure 1 This is a schematic diagram of an electrical device provided in one embodiment of this application.

[0024] This embodiment provides an electrical device 1000, which includes a transformer 100 and a circuit board 200. The transformer 100 is detachably mounted on the circuit board 200 and is electrically connected to the circuit board 200.

[0025] Please see Figures 1 to 4 , Figure 2 This is an assembly structure diagram of a transformer device according to an embodiment of this application. Figure 3 This is a front view of a transformer device provided in one embodiment of this application. Figure 4 This application provides a partial assembly structure for a transformer device according to one embodiment. Figure 1 .

[0026] This embodiment provides a transformer device 100, which includes a magnetic core structure 10, a winding structure 20, a frame structure 30, and an isolation structure 40. The magnetic core structure 10 is mounted on the frame structure 30, the winding structure 20 is wound around the magnetic core structure 10, and the isolation structure 40 is mounted on the magnetic core structure 10 and disposed between the magnetic core structure 10 and the winding structure 20. The winding structure 20 includes a first winding 21 and a second winding 22, one of which is a primary winding and the other is a secondary winding. The first winding 21 includes a first sub-winding 211 and a second sub-winding 212, in a first direction (e.g., ...). Figure 2 (As shown in the Z-axis direction), the second winding 22 is located between the first sub-winding 211 and the second sub-winding 212, and at least part of the isolation structure 40 is disposed between the first sub-winding 211 and the second winding 22, and at least part of the isolation structure 40 is disposed between the second sub-winding 212 and the second winding 22.

[0027] The transformer device 100 provided in this embodiment, on the one hand, isolates the first sub-winding 211 and the second winding 22 of the first winding 21 through the isolation structure 40. The isolation structure 40 also isolates the second sub-winding 212 and the second winding 22 of the first winding 21, thereby increasing the spacing between the first sub-winding 211 and the second winding 22, and also increasing the spacing between the second sub-winding 212 and the second winding 22. This, in turn, increases the leakage inductance of the transformer device 100. The increased leakage inductance can be made into a resonant inductor, realizing the integrated main and resonant design of the transformer device 100, which can reduce the number of components in the transformer device 100 and help reduce the manufacturing cost of the transformer device 100. Moreover, reducing the number of components in the transformer device 100 can reduce the size of the transformer device 100, and reduce the board area occupied by the circuit board 200 connected to the transformer device 100 and the manufacturing process difficulty. On the other hand, by positioning the first sub-winding 211 and the second sub-winding 212 of the first winding 21 on both sides of the second winding 22 in the first direction, the leakage inductance generated by the winding structure 20 is made more balanced, making it easier to make the leakage inductance a resonant inductor. Moreover, the positioning of the first sub-winding 211 and the second sub-winding 212 of the first winding 21 on both sides of the second winding 22 makes the design of the winding structure 20 more balanced, which can reduce the heat generation of the winding structure 20 and the transformer 100.

[0028] Please see Figures 1 to 4In one embodiment, the first sub-winding 211 and the second sub-winding 212 in the first winding 21 are both primary windings, and the second winding 22 is a secondary winding. In a first direction, the first sub-winding 211 and the second sub-winding 212 (two primary windings) are respectively disposed on both sides of the second winding 22 (secondary winding). It is understood that in some other embodiments, the first sub-winding 211 and the second sub-winding 212 in the first winding 21 are both secondary windings, and the second winding 22 is a primary winding. In a first direction, the first sub-winding 211 and the second sub-winding 212 (two secondary windings) are respectively disposed on both sides of the second winding 22 (primary winding), and this application does not limit this.

[0029] Please see Figure 1 , Figure 2 and Figure 5 , Figure 5 This is a structural diagram of the skeleton structure provided in one embodiment of this application.

[0030] In one embodiment, the skeleton structure 30 is provided with a mounting position 31, which is configured to allow the skeleton structure 30 to be detachably connected to the circuit board 200. For example, the mounting position 31 can be a screw hole, a snap-fit ​​slot, etc., and this application does not limit it.

[0031] Please see Figures 1 to 4 , Figure 6 and Figure 7 , Figure 6 This is a structural diagram of an isolation structure provided in an embodiment of this application. Figure 7 This application provides a partial assembly structure for a transformer device according to one embodiment. Figure 2 .

[0032] In one embodiment, the isolation structure 40 includes a body 41, a first barrier 42, and a second barrier 43. The body 41 is sleeved on the magnetic core structure 10. The first barrier 42 and the second barrier 43 are spaced apart along a first direction on the outer side wall of the body 41 away from the magnetic structure. The first barrier 42 is positioned along a second direction perpendicular to the first direction (e.g., ...). Figure 2 The first barrier 42 extends along the X-axis direction (as shown), and the second barrier 43 extends along the second direction. In the first direction, the first barrier 42 is disposed between the first sub-winding 211 and the second winding 22, and the second barrier 43 is disposed between the second sub-winding 212 and the second winding 22.

[0033] The transformer 100 provided in this embodiment isolates the first sub-winding 211 and the second winding 22 of the first winding 21 through the first barrier 42, and the second sub-winding 212 and the second winding 22 of the first winding 21 through the second barrier 43. This increases the spacing between the first sub-winding 211 and the second winding 22, and also increases the spacing between the second sub-winding 212 and the second winding 22. Consequently, the leakage inductance of the transformer 100 increases. The increased leakage inductance can be made into a resonant inductor, realizing a main-resonant integrated design of the transformer 100. This reduces the number of components in the transformer 100, which is beneficial for reducing the manufacturing cost of the transformer 100. Moreover, reducing the number of components in the transformer 100 can reduce the size of the transformer 100, and reduce the board area occupied by the circuit board 200 connected to the transformer 100 and the manufacturing process difficulty.

[0034] Please see Figure 6 In one embodiment, the main body 41, the first retaining wall 42, and the second retaining wall 43 are integrally formed. It is understood that in some other embodiments, the main body 41, the first retaining wall 42, and the second retaining wall 43 are separate structures, i.e., the first retaining wall 42 and the second retaining wall 43 are fixed to the main body 41 by connection; this application does not limit this.

[0035] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one specific embodiment, there are multiple first baffles 42, each disposed between the first sub-winding 211 and the second winding 22. These first baffles 42 are spaced apart circumferentially around the body 41 in a first direction, extending from the inside out in the circumferential direction. A first gap 421 is formed between any two adjacent first baffles 42 in the first direction, and this gap 421 is used for heat dissipation of the first sub-winding 211 and the second winding 22. Similarly, there are multiple second baffles 43, each disposed between the second sub-winding 212 and the second winding 22. These second baffles 43 are spaced apart circumferentially around the body 41 in the first direction. A second gap 431 is formed between any two adjacent second baffles 43 in the first direction, and this gap 431 is used for heat dissipation of the second sub-winding 212 and the second winding 22. The first gap 421 and the second gap 431 are positioned opposite each other in the first direction.

[0036] The transformer 100 provided in this embodiment has multiple first baffles 42 spaced circumferentially around the periphery of the main body 41, allowing heat generated by the first sub-winding 211 and the second winding 22 to be conducted to the outside of the transformer 100 through the first gap 421. Similarly, multiple second baffles 43 spaced circumferentially around the periphery of the main body 41 allow heat generated by the second sub-winding 212 and the second winding 22 to be conducted to the outside of the transformer through the second gap 431. Therefore, by designing the first baffles 42 and the second baffles 43, heat dissipation of the first sub-winding 211 and the second sub-winding 212, as well as the second winding 22, is facilitated, resulting in better heat dissipation performance of the transformer 100.

[0037] In some other embodiments, there are multiple first baffles 42, each disposed between the first sub-winding 211 and the second winding 22, and the multiple first baffles 42 are spaced apart circumferentially around the body 41 in a first direction. A first gap 421 is formed between any two adjacent first baffles 42 in the first direction, and the first gap 421 is used for heat dissipation between the first sub-winding 211 and the second winding 22. There is only one second baffle 43, which is annular and disposed between the second sub-winding 212 and the second winding 22, and is circumferentially around the body 41 in the first direction. This application does not limit this.

[0038] In some other embodiments, there is one first baffle wall 42, which is annular and disposed between the first sub-winding 211 and the second winding 22. The first baffle wall 42 is circumferentially disposed around the body 41 in a first direction. There are multiple second baffle walls 43, which are disposed between the second sub-winding 212 and the second winding 22. The multiple second baffle walls 43 are spaced apart around the body 41 in a first direction. A second gap 431 is formed between any two adjacent second baffle walls 43 in the first direction. The second gap 431 is used for heat dissipation between the second sub-winding 212 and the second winding 22. This application does not limit this.

[0039] Please see Figures 2 to 4 , Figure 6 and Figure 7In one embodiment, the first winding 21 is the primary winding, and the second winding 22 is the secondary winding. The first winding 21 includes a first sub-winding 211 and a second sub-winding 212, both of which are primary windings. The second winding 22 includes a third sub-winding 221 and a fourth sub-winding 222, both of which are secondary windings. In a first direction, the first sub-winding 211, the third sub-winding 221, the fourth sub-winding 222, and the second sub-winding 212 are arranged sequentially. In the first direction, a first barrier 42 is disposed between the first sub-winding 211 and the third sub-winding 221, and a second barrier 43 is disposed between the second sub-winding 212 and the fourth sub-winding 222. The first sub-winding 211 is used to generate an induced current in the third sub-winding 221, and the second sub-winding 212 is used to generate an induced current in the fourth sub-winding 222.

[0040] The transformer 100 provided in this embodiment has a first sub-winding 211 and a second sub-winding 212 disposed on both sides of the magnetic structure, and a third sub-winding 221 and a fourth sub-winding 222 disposed in the middle of the magnetic structure, so that the first sub-winding 211 and the second sub-winding 212 can be electrically connected to the outside to form the primary winding. Moreover, a first barrier 42 is disposed between the first sub-winding 211 and the third sub-winding 221, and a second barrier 43 is disposed between the second sub-winding 212 and the fourth sub-winding 222, so as to increase the spacing between the first sub-winding 211 and the third sub-winding 221, and also increase the spacing between the second sub-winding 212 and the fourth sub-winding 222, thereby increasing the leakage inductance of the transformer 100. The increased leakage inductance can be made into a resonant inductor, realizing the integrated design of the primary and resonant windings of the transformer 100, which can reduce the number of components in the transformer 100 and help reduce the manufacturing cost of the transformer 100. Furthermore, reducing the number of components in the transformer 100 can reduce the size of the transformer 100, and decrease the board area occupied by the circuit board 200 connected to the transformer 100 and the difficulty of manufacturing process.

[0041] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one specific embodiment, the first retaining wall 42 exposes the first sub-winding 211 and the third sub-winding 221, and the second retaining wall 43 exposes the second sub-winding 212 and the fourth sub-winding 222. In other words, the extension length of the first retaining wall 42 in the second direction is greater than the thickness of the first sub-winding 211 and the third sub-winding 221 in the second direction, and the extension length of the second retaining wall 43 in the second direction is greater than the thickness of the second sub-winding 212 and the fourth sub-winding 222 in the second direction.

[0042] The transformer 100 provided in this embodiment exposes the first sub-winding 211 and the third sub-winding 221 through the first retaining wall 42, and exposes the second sub-winding 212 and the fourth sub-winding 222 through the second retaining wall 43. This can prevent the first sub-winding 211, the second sub-winding 212, the third sub-winding 221 and the fourth sub-winding 222 from loosening, which is beneficial to improving the stability of the first sub-winding 211, the second sub-winding 212, the third sub-winding 221 and the fourth sub-winding 222 wound on the isolation structure 40.

[0043] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one embodiment, the isolation structure 40 further includes a third baffle 44 extending along a second direction. In a first direction, the first baffle 42, the third baffle 44, and the second baffle 43 are sequentially spaced apart, with the third baffle 44 positioned between the third sub-winding 221 and the fourth sub-winding 222 of the second winding 22. In the second direction, the extension length of the third baffle 44 is less than the extension length of the first baffle 42, and the extension length of the third baffle 44 is less than the extension length of the second baffle 43, with at least a portion of the third sub-winding 221 and at least a portion of the fourth sub-winding 222 exposed above the third baffle 44. The first gap 421, the second gap 431, and the third gap 441 are arranged opposite each other in the first direction.

[0044] The transformer 100 provided in this embodiment has a third baffle 44 disposed between the third sub-winding 221 and the fourth sub-winding 222 to separate them, thereby reducing the mutual thermal influence caused by the heating of the third sub-winding 221 and the fourth sub-winding 222. Simultaneously, the third baffle 44 helps improve the stability of the third sub-winding 221 and the fourth sub-winding 222 wound on the isolation structure 40. Furthermore, by exposing at least a portion of the third sub-winding 221 and at least a portion of the fourth sub-winding 222 to the third baffle 44, heat dissipation of the third sub-winding 221 and the fourth sub-winding 222 is facilitated.

[0045] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one specific embodiment, there are multiple third baffles 44, each disposed between the third sub-winding 221 and the fourth sub-winding 222. These third baffles 44 are spaced apart circumferentially around the body 41 in a first direction. A third gap 441 is formed between any two adjacent third baffles 44 in the circumferential direction around the first direction. The third gap 441 is used for heat dissipation between the third sub-winding 221 and the fourth sub-winding 222.

[0046] The transformer 100 provided in this embodiment has multiple third baffles 44 arranged circumferentially around the periphery of the body 41 at intervals in a first direction. The heat generated by the third sub-winding 221 and the fourth sub-winding 222 can be conducted to the outside of the transformer 100 through the third gap 441. Thus, by designing the third baffles 44, heat dissipation of the third sub-winding 221 and the fourth sub-winding 222 of the second winding 22, as well as the second winding 22 itself, is facilitated, resulting in better heat dissipation performance of the transformer 100.

[0047] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one embodiment, the body 41 of the isolation structure 40 is provided with heat dissipation holes 45, which penetrate the body 41 of the isolation structure 40. There are multiple heat dissipation holes 45, which are respectively located at positions corresponding to the body 41 of the first winding 21 and the second winding 22. Specifically, the multiple heat dissipation holes 45 are respectively located at positions corresponding to the body 41 of the first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222.

[0048] The transformer 100 provided in this embodiment has heat dissipation holes 45 disposed at positions corresponding to the main body 41 of the first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222, respectively. This facilitates the conduction of heat generated by the first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222 to the outside of the transformer 100 through the heat dissipation holes 45, which helps to improve the heat dissipation efficiency of the first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222, thereby improving the heat dissipation effect of the transformer 100.

[0049] In some other embodiments, the multiple heat dissipation holes 45 on the body 41 of the isolation structure 40 are only distributed at the position of the first winding 21 corresponding to the body 41, or the multiple heat dissipation holes 45 on the body 41 of the isolation structure 40 are only distributed at the position of the second winding 22 corresponding to the body 41. This can also conduct the heat generated by the first sub-winding 211 and the second sub-winding 212 to the outside of the transformer device 100 through the heat dissipation holes 45, or conduct the heat generated by the third sub-winding 221 and the fourth sub-winding 222 to the outside of the transformer device 100 through the heat dissipation holes 45, so as to improve the heat dissipation performance of the transformer device 100. This application does not limit this.

[0050] Please see Figures 2 to 4 , Figure 6 and Figure 7In one embodiment, each isolation structure 40 further includes a first support portion 46 and a second support portion 47, which are disposed at opposite ends of the body 41 of the isolation structure 40 along a first direction, and both the first support portion 46 and the second support portion 47 extend along a second direction. In other words, the first support portion 46 is disposed on the side of the first retaining wall 42 away from the third retaining wall 44, and the second support portion 47 is disposed on the side of the second retaining wall 43 away from the third retaining wall 44. A first sub-winding 211 is wound between the first support portion 46 and the first retaining wall 42, and a second sub-winding 212 is wound between the second support portion 47 and the second retaining wall 43. Thus, through the design of the first support portion 46 and the second support portion 47, the winding stability of the first sub-winding 211 and the second sub-winding 212 on the isolation structure 40 is better.

[0051] Please see Figures 2 to 4 , Figure 6 and Figure 7 In one specific embodiment, there are multiple first support portions 46, which are circumferentially spaced around the body 41 in a first direction. A fourth gap 461 is formed between any two adjacent first support portions 46 in the first direction, and this fourth gap 461 is used for heat dissipation of the first sub-winding 211. There are also multiple second support portions 47, which are circumferentially spaced around the body 41 in a first direction. A fifth gap 471 is formed between any two adjacent second support portions 47 in the first direction, and this fifth gap 471 is used for heat dissipation of the second sub-winding 212. The first gap 421, second gap 431, third gap 441, fourth gap 461, and fifth gap 471 are arranged opposite each other in the first direction. Therefore, the design of the first support portions 46 and the second support portions 47 helps to improve the heat dissipation efficiency of the first sub-winding 211 and the second sub-winding 212.

[0052] Please see Figures 2 to 4 , Figure 7 and Figure 8 , Figure 8 This is a structural diagram of a magnetic core structure provided in one embodiment of this application.

[0053] In one embodiment, the magnetic core structure 10 includes a plurality of magnetic cores 11 arranged along a first direction, with a first sub-winding 211, a second sub-winding 212, a third sub-winding 221, and a fourth sub-winding 222 respectively wound around a corresponding magnetic core 11. In the first direction, an air gap 12 is formed between two adjacent magnetic cores 11. In a second direction perpendicular to the first direction, the plurality of air gaps 12 are respectively positioned opposite to a first baffle wall 42, a second baffle wall 43, and a third baffle wall 44. Specifically, the magnetic structure includes four magnetic cores 11 arranged along the first direction, with the body 41 of the isolation structure 40 sleeved around the four magnetic cores 11. The first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222 are respectively wound around the body 41 of the isolation structure 40 at positions corresponding to the four magnetic cores 11. Three air gaps 12 are formed between the four magnetic cores 11, and the three air gaps 12 are respectively set with the first baffle 42, the second baffle 43 and the third baffle 44.

[0054] The transformer 100 provided in this embodiment improves the efficiency of electromagnetic induction and energy conversion by winding the first sub-winding 211, the second sub-winding 212, the third sub-winding 221, and the fourth sub-winding 222 around a corresponding magnetic core 11. Furthermore, the formation of three air gaps 12 between the four magnetic cores 11 allows heat generated by the magnetic cores 11 to be conducted to the outside of the transformer 100, improving the overall heat dissipation efficiency of the magnetic structure. Moreover, the corresponding arrangement of the three air gaps 12 with the first baffle 42, the second baffle 43, and the third baffle 44 reduces the area around the first winding 21 or the second winding 22 within the air gaps 12, ensuring that the first winding 21 and the second winding 22 are wound more around the corresponding positions of the magnetic cores 11, further improving the efficiency of electromagnetic induction and energy conversion of the transformer 100.

[0055] Please see Figures 2 to 4 and Figure 7 In one embodiment, the transformer 100 further includes a connecting bus 50 and an electronic wire 60. The connecting bus 50 is mounted on the frame structure 30. The connecting bus 50, the first sub-winding 211, and the second sub-winding 212 are connected in series. The connecting bus 50 is used to connect to the power supply so that the first sub-winding 211 and the second sub-winding 212 form the primary winding. The electronic wire 60, the fourth sub-winding 222, and the third sub-winding 221 are connected in series. The electronic wire 60 is used to connect to the load so that the load can receive electrical energy from the power supply after passing through the transformer 100. The transformer 100 provided in this embodiment, through the arrangement of the connecting bus 50 and the electronic wire 60, enables the transformer 100 to more conveniently connect to the power supply and the load.

[0056] Please see Figures 2 to 4 and Figure 7In one embodiment, the transformer 100 further includes a current transformer 70 and a signal line 80. The current transformer 70 is connected in series between the fourth sub-winding 222 and the electronic line 60. The signal line 80 is connected to the current transformer 70 and is used to detect the magnitude of the current flowing through the current transformer 70. Thus, by connecting the current transformer 70 in series between the fourth sub-winding 222 and the electronic line 60, the current transformer 70 is avoided from being externally connected, resulting in a higher integration level of the transformer 100 and further reducing its manufacturing cost. Simultaneously, reducing the number of components in the transformer 100 can reduce its size, decrease the board area occupied by the circuit board 200 connected to the transformer, and reduce the manufacturing difficulty.

[0057] Please see Figures 2 to 4 In one embodiment, the transformer 100 is a three-phase transformer. The transformer 100 has three magnetic core structures 10, three winding structures 20, and three isolation structures 40. In a first direction, one end of each of the three magnetic core structures 10 is connected together, and the other end of each magnetic core structure 10 is connected together. The three winding structures 20 are respectively wound around the three magnetic core structures 10, and the three isolation structures 40 are respectively sleeved around the three magnetic core structures 10. Each isolation structure 40 is disposed between a magnetic core structure 10 and a corresponding winding structure 20. Each winding structure 20 includes a first winding 21 and a second winding 22. The three first windings 21 are connected in parallel, and the three second windings 22 are connected in parallel. Specifically, one end of each of the three first sub-windings 211 is connected to one of the three connecting bars 50, and the other end of each of the three first sub-windings 211 is connected in series with one end of each of the three second sub-windings 212. The other ends of the three second sub-windings 212 are connected together and grounded. One end of each of the three fourth sub-windings 222 is connected to one of the three electronic wires 60, and the other end of each of the three fourth sub-windings 222 is connected in series with one end of each of the three third sub-windings 221. The other ends of the three third sub-windings 221 are connected together and grounded. Thus, by having three core structures 10, three winding structures 20, and three isolation structures 40 in the transformer device 100, the transformer device 100 can achieve the function of three-phase transformation. The first support part 46 of the isolation structure 40 is used to support the end connected to the three core structures 10, and the second support part 47 of the isolation structure 40 is used to support the other end connected to the three core structures 10, so that the isolation structure 40 is more stable when fitted onto the core structures 10.

[0058] It is understood that in some other embodiments, the transformer 100 has two magnetic core structures 10, two winding structures 20, and two isolation structures 40. This application does not limit this.

[0059] The above are some embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A transformer device, characterized in that, This includes the core structure, winding structure, frame structure, and isolation structure; The magnetic core structure is mounted on the skeleton structure, the winding structure is wound around the magnetic core structure, the isolation structure is mounted on the magnetic core structure, and the isolation structure is disposed between the magnetic core structure and the winding structure; The winding structure includes a first winding and a second winding, wherein one of the first winding and the second winding is a primary winding and the other is a secondary winding; the first winding includes a first sub-winding and a second sub-winding, and in a first direction, the second winding is located between the first sub-winding and the second sub-winding, and at least a portion of the isolation structure is disposed between the first sub-winding and the second winding, and at least a portion of the isolation structure is disposed between the second sub-winding and the second winding.

2. The transformer device as described in claim 1, characterized in that, The isolation structure includes a body, a first barrier wall, and a second barrier wall. The body is sleeved on the magnetic core structure. The first barrier wall and the second barrier wall are spaced apart along the first direction. The first barrier wall extends along a second direction perpendicular to the first direction, and the second barrier wall extends along the second direction. In the first direction, the first retaining wall is disposed between the first sub-winding and the second winding, and the second retaining wall is disposed between the second sub-winding and the second winding.

3. The transformer device as described in claim 2, characterized in that, There are multiple first baffles, and the multiple first baffles are circumferentially spaced on the body around the first direction; a first gap is formed between any two adjacent first baffles around the first direction, and the first gap is used to dissipate heat from the first sub-winding and the second winding. and / or, There are multiple second baffles, which are circumferentially spaced on the body around the first direction; a second gap is formed between any two adjacent second baffles around the first direction, and the second gap is used to dissipate heat from the second sub-winding and the second winding.

4. The transformer device as described in claim 2, characterized in that, The first winding is the primary winding, and the second winding is the secondary winding; The second winding includes a third sub-winding and a fourth sub-winding. In the first direction, the first sub-winding, the third sub-winding, the fourth sub-winding and the second sub-winding are arranged sequentially. In the first direction, the first retaining wall is disposed between the first sub-winding and the third sub-winding, and the second retaining wall is disposed between the second sub-winding and the fourth sub-winding.

5. The transformer as described in claim 4, characterized in that, The isolation structure further includes a third retaining wall extending along the second direction; in the first direction, the first retaining wall, the third retaining wall, and the second retaining wall are arranged sequentially at intervals, and the third retaining wall is disposed between the third sub-winding and the fourth sub-winding; in the second direction, the extension length of the third retaining wall is less than the extension length of the first retaining wall, and the extension length of the third retaining wall is less than the extension length of the second retaining wall, and at least a portion of the third sub-winding and at least a portion of the fourth sub-winding are exposed through the third retaining wall.

6. The transformer device as described in claim 2, characterized in that, The body is provided with heat dissipation holes, which are located at positions of the first winding and / or the second winding corresponding to the body.

7. The transformer device as described in claim 5, characterized in that, The magnetic core structure includes multiple magnetic cores arranged along the first direction, and the first sub-winding, the second sub-winding, the third sub-winding and the fourth sub-winding are respectively wound around a corresponding magnetic core; in the first direction, an air gap is formed between two adjacent magnetic cores; in the second direction perpendicular to the first direction, the multiple air gaps are respectively arranged opposite to the first barrier wall, the second barrier wall and the third barrier wall.

8. The transformer device as described in claim 4, characterized in that, The transformer also includes a connecting bar and an electronic wire. The connecting bar, the first sub-winding and the second sub-winding are connected in series, and the electronic wire, the fourth sub-winding and the third sub-winding are connected in series.

9. The transformer as described in claim 8, characterized in that, The transformer also includes a current transformer and a signal line. The current transformer is connected in series between the fourth sub-winding and the electronic wire, and the signal line is connected to the current transformer.

10. The transformer as claimed in claim 1, characterized in that, The number of magnetic core structures is three, the number of winding structures is three, and the number of isolation structures is three; The three winding structures are respectively wound around the three magnetic core structures, and each isolation structure is disposed between a magnetic core structure and a corresponding winding structure; Each of the winding structures includes a first winding and a second winding, with three first windings connected in parallel and three second windings connected in parallel.

11. An electrical device, characterized in that, include: The transformer device as described in any one of claims 1 to 10; The circuit board, wherein the transformer is detachably mounted on the circuit board.

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