Assembled frameless insulation power induction transformer and electronic equipment
By setting an insulating partition on the inner cavity wall of the core housing of the inductor transformer and clamping the winding between the core column and the insulating partition, the problem of large volume of the traditional inductor transformer is solved, miniaturization and performance stability are improved.
Patent Information
- Application Number
- CN202421204475.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-29
AI Technical Summary
While ensuring stable and fixed windings, traditional inductor transformers are difficult to reduce the volume of inductor transformers, resulting in a larger overall volume, which is not conducive to the miniaturization and integration of electronic devices.
The assembled frameless insulating power inductor transformer design is adopted. By setting an insulating partition on the inner cavity wall of the winding cavity of the magnetic core shell, the winding is sandwiched between the magnetic core column and the insulating partition, and the winding is wound on the magnetic core column to achieve the fixation and insulation of the winding to avoid electrical contact.
The stable fixation and insulation of windings under the frameless structure are achieved, which enhances the performance stability of the inductor transformer, and is conducive to the miniaturization of inductor transformer and reduces volume occupation.
Smart Images
Figure CN222672781U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of inductor components, and in particular to an assembled frameless insulated power inductor transformer and electronic equipment. Background Art
[0002] With the rapid development of electronic technology, inductors, as important components in circuits, have become the focus of research on their performance and structure.
[0003] In the related art, the inductor transformer usually sets a skeleton inside the magnetic core to fix the winding. Although this method can achieve stable fixation of the winding, it will inevitably increase the space in the inner cavity of the magnetic core, which not only makes the overall volume of the inductor transformer larger, which is not conducive to the miniaturization and integration of electronic equipment, but also may affect the working performance of the inductor. In addition, the introduction of the skeleton may also increase the complexity and manufacturing cost of the inductor transformer, which is not conducive to the large-scale production and application of inductors.
[0004] Therefore, how to reduce the volume of the inductor transformer while ensuring the winding is stable and fixed has become an urgent problem to be solved in the field of inductor technology. Utility Model Content
[0005] The purpose of the present application is to provide an assembled frameless insulated power inductor transformer and electronic equipment, aiming to solve the problem of reducing the volume of the inductor transformer while ensuring the stable fixation of the winding in the traditional technology.
[0006] A first aspect of an embodiment of the present application provides an assembled frameless insulated power inductor transformer, the inductor transformer comprising:
[0007] A magnetic core shell, wherein a winding cavity is arranged in the magnetic core shell, the winding cavity has an inner cavity wall, and an insulating barrier is arranged on at least a part of the inner cavity wall;
[0008] A magnetic core column is arranged in the winding cavity, and the magnetic core column is spaced apart from the insulating barrier;
[0009] The winding is sandwiched between the magnetic core column and the insulating layer, and the winding is arranged around the magnetic core column.
[0010] In some embodiments of the present application, the insulating barrier is an insulating coating applied on the inner cavity wall.
[0011] In some embodiments of the present application, the insulating coating is an insulating layer made of at least a polymer material.
[0012] In some embodiments of the present application, the thickness of the insulating coating is 0.1 mm-0.5 mm.
[0013] In some embodiments of the present application, the magnetic core shell includes a first shell and a second shell, the first shell is provided with a first slot body, the second shell is provided with a second slot body, and the first shell is configured to abut against the second shell so that the first slot body is connected with the second slot body to define the winding cavity.
[0014] In some embodiments of the present application, the magnetic core column includes a first sub-column, the first sub-column is arranged in the first slot body, and the winding is wound on the first sub-column.
[0015] In some embodiments of the present application, the first sub-column is configured to extend into the second slot when the first shell is cooperatively connected with the second shell.
[0016] In some embodiments of the present application, the magnetic core column includes a second sub-column, the second sub-column is arranged in the second slot, and the second sub-column is configured to abut against the first sub-column when the first shell and the second shell are cooperatively connected; the winding is wound on the first sub-column and the second sub-column.
[0017] In some embodiments of the present application, the inner wall of the winding cavity is completely covered with the insulating barrier.
[0018] In some embodiments of the present application, the insulating spacer is also disposed on the magnetic core column and covers the cylindrical surface of the magnetic core column.
[0019] In some embodiments of the present application, the winding includes a winding wire and a tape layer, and the tape layer is wrapped around the winding wire to form a wire package structure.
[0020] In a second aspect, the present application further provides an electronic device, wherein the electronic device comprises the above-mentioned inductor transformer.
[0021] Compared with the prior art, the beneficial effects of the embodiments of the utility model are as follows: the above-mentioned assembled frameless insulated power inductor transformer and electronic equipment, the inductor transformer includes a magnetic core shell, a magnetic core column and a winding, a winding cavity is arranged in the magnetic core shell, the winding cavity has an inner cavity wall, and an insulating barrier is arranged on at least a part of the inner cavity wall; the magnetic core column is arranged in the winding cavity, and the magnetic core column and the insulating barrier are arranged at intervals; on the one hand, the present application achieves the fixation of the winding by clamping the winding between the magnetic core column and the insulating barrier, and the winding is arranged around the magnetic core column, without the need for a traditional skeleton structure; on the other hand, an insulating barrier is arranged on the inner cavity wall to contact the winding to avoid electrical contact between the winding and the magnetic core shell, which is beneficial to enhancing the performance stability of the inductor transformer; and because the insulating barrier has a smaller volume than the traditional complex skeleton structure, it is beneficial to achieve the miniaturization of the inductor transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of an assembled frameless insulated power inductor transformer provided in one embodiment of the present application;
[0023] Figure 2 A schematic structural diagram of an assembled frameless insulated power inductor transformer provided in another embodiment of the present application;
[0024] Figure 3 A schematic structural diagram of an assembled frameless insulated power inductor transformer provided in yet another embodiment of the present application;
[0025] Figure 4 A schematic structural diagram of an assembled frameless insulated power inductor transformer provided in yet another embodiment of the present application.
[0026] Specific element symbol description: 100-magnetic core shell, 110-winding cavity, 111-first slot body, 112-second slot body, 120-insulating barrier, 130-first shell, 140-second shell, 200-winding, 210-tape layer, 300-magnetic core column, 310-first sub-column, 320-second sub-column. DETAILED DESCRIPTION
[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0028] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0029] It should be understood that the terms "length", "width", "up", "down", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0031] It is important to know that with the rapid development of electronic technology, inductors, as important components in circuits, have been the focus of research on performance and structure optimization. An inductor is a device with a certain inductance that only blocks the change of current. In an inductor, a wire or coil is wound around a magnetic material. When current flows through the inductor, a magnetic field is generated, which stores some electrical energy. When the current stops (or the circuit is disconnected) or changes direction, the magnetic field releases the stored electrical energy, trying to maintain the current unchanged so that the current continues to flow in the original direction.
[0032] In the related art, the structure of an inductor mainly includes a skeleton, a winding, a shielding cover, a packaging material, a magnetic core or an iron core, etc. Among them, the skeleton is a bracket for winding the coil, and the winding is a group of coils with specified functions, which is the basic component of the inductor. Therefore, the current inductor transformer usually sets a skeleton in the magnetic core to fix the winding. Since the skeleton is usually a relatively stable frame structure, the skeleton can be used to constrain the winding to prevent the winding from extending and forming an electrical contact with the magnetic core.
[0033] However, although this method can achieve stable fixation of the winding, it will inevitably increase the space in the inner cavity of the magnetic core, which not only makes the overall volume of the inductor transformer larger, which is not conducive to the miniaturization and integration of electronic equipment, but also may affect the working performance of the inductor. In addition, the introduction of the skeleton may also increase the complexity and manufacturing cost of the inductor transformer, which is not conducive to the large-scale production and application of inductors.
[0034] Therefore, the present application improves the related inductor transformer and electronic equipment based on this.
[0035] Please refer to Figures 1 to 3 , Figure 1 The structural schematic diagram of the assembled frameless insulated power inductor transformer provided by the present embodiment is shown. An assembled frameless insulated power inductor transformer of the present embodiment comprises a magnetic core shell 100, a magnetic core column 300 and a winding 200. A winding cavity 110 is arranged in the magnetic core shell 100, and the winding cavity 110 has an inner cavity wall, and an insulating barrier 120 is arranged on at least a part of the inner cavity wall; the magnetic core column 300 is arranged in the winding cavity 110, and the magnetic core column 300 is arranged at intervals from the insulating barrier 120; the winding 200 is sandwiched between the magnetic core column 300 and the insulating barrier 120, and the winding 200 is arranged around the magnetic core column 300.
[0036] It should be explained that the magnetic core column 300 is generally a cylindrical structure. Cylindrical magnetic cores are usually used in electrical and electronic equipment to improve their efficiency and performance. In inductors, the magnetic core column 300 is used to enhance the induced current and magnetic field strength of the inductor, thereby improving the performance of the inductor. The cylindrical structure makes it easier for the winding 200 to be wound around the magnetic core column 300.
[0037] In the current inductor transformer, a skeleton needs to be arranged in the winding cavity 110, and the winding 200 is constrained and fixed by the skeleton, and the skeleton will occupy a large space in the winding cavity 110. However, the present application, on the one hand, by sandwiching the winding 200 between the magnetic core column 300 and the insulating barrier 120, and the winding 200 is arranged around the magnetic core column 300, the winding 200 can be limited and fixed without the traditional skeleton structure; on the other hand, by arranging the insulating barrier 120 on the inner cavity wall to contact the winding 200, the winding 200 is prevented from making electrical contact with the magnetic core housing 100, which is conducive to enhancing the performance stability of the inductor transformer; and because the insulating barrier 120 has a smaller volume than the traditional complex skeleton structure, it is conducive to miniaturization of the inductor transformer.
[0038] It should be explained that the inner cavity wall of the winding cavity 110 of the conventional magnetic core housing 100 is conductive, so in order to avoid electrical contact between the winding 200 and the inner cavity wall and to constrain the winding 200, a special skeleton structure is usually required to fix the winding 200. In the present application, the inner cavity wall of the winding cavity 110 of the magnetic core housing 100 is actually used to directly constrain and fix the winding 200, and the inner cavity wall of the winding cavity 110 and the winding 200 are prevented from electrical contact by providing an insulating barrier 120 on the inner cavity wall.
[0039] Specifically, in conventional inductor transformers, the insulation purpose is mainly achieved by using the winding 200 alone for insulation. However, the present application uses the winding 200 insulation + the magnetic core (partial) for coating insulation, or the winding 200 is not insulated and only relies on the magnetic core insulation to achieve the insulation purpose.
[0040] In some embodiments of this application, please continue to refer to Figure 1 In this embodiment, the insulating barrier 120 is an insulating coating applied on the inner cavity wall. It should be explained that the thickness of the insulating coating is usually small, which is conducive to the miniaturization of the inductor transformer; and the insulating coating can form a good contact with the inner cavity wall, which is conducive to ensuring the structural stability of the inductor transformer.
[0041] It is understandable that the smaller thickness of the insulating coating is conducive to increasing the dedicated space of the coil, thereby improving the space utilization of the inductor transformer. In some embodiments, the insulating coating can reduce the space occupied by at least 60% compared to the skeleton structure.
[0042] In some embodiments, the insulating coating may be an insulating paint layer.
[0043] In some embodiments of the present application, the insulating coating of the present embodiment is an insulating layer made of at least a polymer material. In some embodiments, the insulating coating is an insulating layer made of a fluorocarbon coating and / or a paraxylene polymer coating.
[0044] In some embodiments of the present application, the thickness of the insulating coating of the present embodiment is 0.1 mm-0.5 mm. In some more specific embodiments, the thickness of the insulating coating is 0.2 mm-0.25 mm. In this way, the insulating coating can maintain good insulation and meet electrical use requirements while reducing unnecessary material waste.
[0045] In some embodiments of this application, please refer to Figure 2 , Figure 2 The schematic diagram of the structure of the assembled frameless insulated power inductor transformer provided in the present embodiment is shown. The magnetic core housing 100 of the present embodiment includes a first housing 130 and a second housing 140, a first slot 111 is provided on the first housing 130, a second slot 112 is provided on the second housing 140, and the first housing 130 is configured to abut against the second housing 140 so that the first slot 111 is connected with the second slot 112 to define a winding cavity 110. In other words, the inductor transformer can be assembled by assembling the first housing 130 and the second housing 140, and the inductor transformer can be disassembled by separating the first housing 130 and the second housing 140.
[0046] In some embodiments of this application, please continue to refer to Figure 2The magnetic core column 300 of this embodiment includes a first sub-column 310 . The first sub-column 310 is disposed in the first slot 111 , and the winding 200 is wound on the first sub-column 310 .
[0047] In some embodiments of this application, please continue to refer to Figure 2 In this embodiment, the first sub-column 310 is configured to extend into the second slot body 112 when the first shell 130 and the second shell 140 are connected in a cooperative manner.
[0048] In some embodiments of this application, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of the inductor transformer provided in this embodiment is shown; the magnetic core column 300 of this embodiment includes a second sub-column 320, the second sub-column 320 is arranged in the second slot 112, and the second sub-column 320 is configured to abut against the first sub-column 310 when the first shell 130 and the second shell 140 are connected in cooperation; the winding 200 is wound on the first sub-column 310 and the second sub-column 320.
[0049] That is to say, the magnetic core column 300 is formed by splicing the first sub-column 310 and the second sub-column 320 .
[0050] In some embodiments of the present application, the inner wall of the winding cavity 110 of this embodiment is completely covered with an insulating barrier 120 .
[0051] In some embodiments, the insulating barrier 120 of this embodiment is also disposed on the magnetic core column 300 and covers the cylindrical surface of the magnetic core column 300. That is, all inner cavity walls and the cylindrical surface of the magnetic core column 300 that the winding 200 may contact are provided with the insulating barrier 120.
[0052] In some embodiments, the insulating barrier 120 of this embodiment is further disposed outside the magnetic core housing 100 to improve the overall insulation performance of the inductor transformer.
[0053] In some embodiments of this application, please refer to Figure 4 , Figure 4 A schematic diagram of the structure of the inductor transformer provided in this embodiment is shown; the winding 200 of this embodiment includes a winding wire and a tape layer 210, and the tape layer 210 is wrapped around the winding wire to form a wire package structure.
[0054] It should be explained that the tape layer 210 can constrain the winding to a certain extent and form an insulating layer structure around the winding. On this basis, the winding cavity 110 can also constrain the wire package structure, and the insulating barrier 120 can form an insulating layer structure around the wire package structure.
[0055] In some embodiments, the inductor transformer further includes a pressing piece, the winding wire has an input pin and an output pin, and the pressing piece is arranged on one side of the winding wire and is welded and fixed to the input pin and the output pin.
[0056] Furthermore, in order to better implement the assembled frameless insulated power inductor transformer in any of the above embodiments, based on the above assembled frameless insulated power inductor transformer, the present application also provides an electronic device, and the electronic device includes the above inductor transformer.
[0057] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0058] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.
[0059] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.
[0060] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more utility model embodiments, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.
[0061] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. An assembled frameless insulated power inductor transformer, characterized in that: The inductor transformer comprises: A magnetic core shell, wherein a winding cavity is arranged in the magnetic core shell, the winding cavity has an inner cavity wall, and an insulating barrier is arranged on at least a part of the inner cavity wall; A magnetic core column is arranged in the winding cavity, and the magnetic core column is spaced apart from the insulating barrier; The winding is sandwiched between the magnetic core column and the insulating layer, and the winding is arranged around the magnetic core column.
2. The assembled frameless insulated power inductor transformer according to claim 1, characterized in that: The insulating barrier is an insulating coating coated on the inner cavity wall.
3. The assembled frameless insulated power inductor transformer according to claim 2, characterized in that: The insulating coating is an insulating layer made of at least a polymer material.
4. The assembled frameless insulated power inductor transformer according to claim 2 or 3, characterized in that: The thickness of the insulating coating is 0.1 mm-0.5 mm.
5. The assembled frameless insulated power inductor transformer according to claim 1, characterized in that: The magnetic core shell includes a first shell and a second shell, the first shell is provided with a first slot body, the second shell is provided with a second slot body, and the first shell is configured to abut against the second shell so that the first slot body is connected with the second slot body to define the winding cavity.
6. The assembled frameless insulated power inductor transformer according to claim 5, characterized in that: The magnetic core column comprises a first sub-column, the first sub-column is arranged in the first slot body, and the winding is wound on the first sub-column.
7. The assembled frameless insulated power inductor transformer according to claim 6, characterized in that: The first sub-column is configured to extend into the second slot when the first shell is connected with the second shell.
8. The assembled frameless insulated power inductor transformer according to claim 6, characterized in that: The magnetic core column includes a second sub-column, the second sub-column is arranged in the second slot, and the second sub-column is configured to abut against the first sub-column when the first shell and the second shell are matched and connected; the winding is wound on the first sub-column and the second sub-column.
9. The assembled frameless insulated power inductor transformer according to any one of claims 5 to 8, characterized in that: The inner cavity wall of the winding cavity is completely covered with the insulating barrier.
10. The assembled frameless insulated power inductor transformer according to claim 9, characterized in that: The insulating barrier is also arranged on the magnetic core column and covers the cylindrical surface of the magnetic core column.
11. The assembled frameless insulated power inductor transformer according to claim 1, characterized in that: The winding includes a winding wire and a tape layer, and the tape layer is wrapped around the winding wire to form a wire package structure.
12. An electronic device, characterized in that: The electronic device comprises the inductor transformer according to any one of claims 1 to 11.