Safe and reliable transformer with integrated inductor
By using integrated inductor module and transformer module in resonant transformer, sharing spaced magnetic plates, abolishing plastic support, and realizing automated winding and standardized stamping molding, the problems of complex manufacturing processes and large volume are solved, and the problem of improvement is improved. Productivity and safety.
Patent Information
- Application Number
- CN202420548312.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The manufacturing process of existing resonant transformers is complex, resulting in high production costs, large device size and large space.
Adopt integrated inductor safety and reliable transformer design, and the inductor module and transformer module are arranged side by side, and the spaced magnetic plate is shared to reduce the number of parts. Automatic winding and standardized stamping are used to cancel plastic support, improve production efficiency and safety .
Simplify manufacturing processes, reduce production costs, reduce device volume, improve usage safety and reliability, extend service life, and achieve automated and efficient winding and product consistency.
Smart Images
Figure CN222145976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic components, in particular to a safe and reliable transformer with integrated inductance. Background Art
[0002] As an important electromagnetic component, transformers are widely used in power supply technology and electronic technology. They use the principle of electrical and magnetic energy conversion induction to adjust different voltages so that they can reach the applicable range of electrical equipment.
[0003] In a resonant power supply circuit, a transformer and an inductor are required to form a resonant transformer in combination to achieve the parameters required by the resonant power supply circuit. In order to combine a transformer and an inductor to form an electromagnetic component, the existing resonant transformer integrates a transformer module and an inductor module on a plastic support, such as a frame, a seat plate, and a shell, so that the plastic support integrates the transformer module and the inductor module to form an electromagnetic component. However, the plastic support of the existing resonant transformer needs to be made by injecting plastic into the cavity of the molding mold through an injection molding machine to form a plastic support, and then the assembled transformer module and inductor module are installed on the plastic support. The manufacturing process is relatively complicated, which greatly increases the manufacturing cost, and the addition of the plastic support causes the overall length or height of the resonant transformer to increase, which makes the overall volume of the resonant transformer larger, thereby occupying more installation space. Summary of the invention
[0004] In order to achieve the main purpose of the utility model, the utility model provides an integrated inductor safe and reliable transformer without plastic support parts, which greatly reduces the overall volume of the device, saves manufacturing costs, simplifies the manufacturing process and improves manufacturing efficiency, while realizing automated and efficient winding and good product consistency.
[0005] In order to achieve the main purpose of the utility model, the utility model provides an integrated inductor safe and reliable transformer, including an inductor module, an interval magnetic plate and two groups of transformer modules, the inductor module, one group of transformer modules, the interval magnetic plate and the other group of transformer modules are arranged side by side in sequence, and the two groups of transformer modules are symmetrically arranged about the interval magnetic plate; each group of transformer modules includes a first magnetic core, an insulating ring sleeve, three groups of primary coils, four groups of secondary copper groups, a first insulating plate and two insulating arc sheets, the first magnetic core includes a first magnetic plate and a first magnetic column and two first magnetic arms protruding from the inner end surface of the first magnetic plate, the two first magnetic arms are symmetrically arranged about the first magnetic column, the insulating ring sleeve is sleeved on the first magnetic column, the first magnetic column and the two first magnetic arms are arranged adjacent to the interval magnetic plate away from the end of the first magnetic plate, the first insulating plate is sleeved on the end of the first magnetic column and a transformer slot is formed between the first magnetic plate, the four groups of secondary copper groups are sleeved side by side on the insulating ring sleeve and Located in the transformer slot, two groups of secondary copper groups are respectively adjacent to the first magnetic plate and the first insulating plate, a winding slot is formed between the two adjacent groups of secondary copper groups, a group of primary coils is located in a winding slot and wound on the insulating ring sleeve, and the two adjacent groups of primary coils are connected, an insulating arc sheet is located between a first magnetic arm and the secondary copper group in the radial direction of the first magnetic core, each group of secondary copper groups includes two secondary insulating sheets and secondary copper sheets, and the two secondary insulating sheets are respectively located at the two ends of the secondary copper sheet in the axial direction of the first magnetic column; the inductor module includes an inductor coil, a second magnetic core and a second insulating plate, the second magnetic core includes a second magnetic plate and a second magnetic column and two second magnetic arms protruding from the inner end surface of the second magnetic plate, the two second magnetic arms are symmetrically arranged about the second magnetic column, the inductor coil is wound on the second magnetic column, and the second insulating plate is located at the second magnetic column and the second magnetic arm at one end away from the second magnetic plate and adjacent to the outer end surface of the first magnetic plate.
[0006] It can be seen from the above scheme that the inductor module, a group of transformer modules, the spacing magnetic plate and another group of transformer modules of the integrated inductor safe and reliable transformer of the utility model are arranged side by side in sequence, and the two groups of transformer modules are symmetrically arranged about the spacing magnetic plate. The second insulating plate of the inductor module is located at the end of its second magnetic column and second magnetic arm away from the second magnetic plate and adjacent to the outer end surface of the first magnetic plate, so that the multiple magnetic elements of the inductor module and the two groups of transformer modules adopt an integrated structural design to share the magnetic circuit of the spacing magnetic plate, and there is no need to set up plastic supports, thereby reducing the number of parts of the resonant transformer integrating the inductor module and the two groups of transformer modules, saving manufacturing production costs, and greatly reducing the overall volume of the device, simplifying the manufacturing production process, and thus improving manufacturing production efficiency. At the same time, the utility model integrated inductor safe and reliable transformer isolates and insulates the inductor coil and the second magnetic core from the adjacent first magnetic core through the second insulating plate, so that there is a sufficient safety distance between the inductor coil and the primary coil and the secondary copper group of the adjacent transformer module, and isolates and insulates the primary coil, the secondary copper group, the first magnetic core and the spacing magnetic plate through the first insulating plate, so that there is a sufficient safety distance between two adjacent transformer modules, thereby improving the safety and reliability of the use of the resonant transformer, and thus extending the service life. In addition, the utility model integrated inductor safe and reliable transformer uses an insulating ring sleeve to be set on the first magnetic column, and the secondary copper group is set on the insulating ring sleeve and the primary coil is wound on the insulating ring sleeve, so that the insulating ring sleeve isolates and insulates the primary coil and the secondary copper group from the first magnetic column, which can effectively prevent the occurrence of coil breakdown and short circuit, thereby improving the safety and reliability of the use of the resonant transformer, and thus extending the service life. In addition, the utility model integrated inductor safe and reliable transformer has an insulating arc sheet and an insulating arc sheet located between a first magnetic arm and a secondary copper group in the radial direction of the first magnetic core. The insulating arc sheet isolates and insulates the primary coil and the secondary copper group from the first magnetic arm, which can effectively prevent the primary coil and the secondary copper group from having insufficient safety distance from the first magnetic arm and causing poor withstand voltage, thereby improving the safety and reliability of the resonant transformer and extending its service life. In addition, the two adjacent groups of primary coils of the utility model integrated inductor safe and reliable transformer are connected, and automatic machine winding can be used to achieve automated and efficient winding, with good product consistency, and the secondary copper sheet is standardized by stamping and forming, thereby improving manufacturing efficiency. Therefore, the utility model integrated inductor safe and reliable transformer does not need to be provided with a plastic support, thereby greatly reducing the overall volume of the device, saving manufacturing production costs, simplifying the manufacturing production process, thereby improving manufacturing efficiency, while achieving automated and efficient winding, with good product consistency.
[0007] A further solution is that the inductor module further includes a fiber insulation board, which is sleeved on the second magnetic column and located between the second insulation board and the inductor coil.
[0008] A further solution is that a first V-shaped groove is formed through the fiber insulation board in the radial direction of the second magnetic column, the first V-shaped groove is located at the output end of the inductor coil, and the first V-shaped groove is filled with insulating glue; and / or, the number of fiber insulation boards is at least two, and multiple fiber insulation boards are arranged side by side on the second magnetic column and located between the second insulation board and the inductor coil.
[0009] A further solution is that a notch groove is formed through the secondary copper sheet in the radial direction of the first magnetic column, the notch groove is located at the output end of the primary coil, and a first pin and a second pin are protruding on both sides of the notch groove in the radial direction of the first magnetic column; a wire passing groove is formed through the secondary insulating sheet in the radial direction of the first magnetic column, and the wire passing groove is arranged corresponding to the notch groove in the axial direction of the first magnetic column.
[0010] A further solution is that a second V-shaped groove is formed through the first insulating plate in the radial direction of the first magnetic column, the second V-shaped groove is located at the outlet end of the primary coil, and the second V-shaped groove is filled with insulating glue.
[0011] A further solution is that each group of transformer modules also includes a spacing insulating sheet, and the spacing insulating sheet is located between one end surface of the spacing magnetic plate and the first insulating plate, the first magnetic column, and the two first magnetic arms.
[0012] A further solution is that the number of the spacing insulating sheets is at least two, and the plurality of spacing insulating sheets are arranged side by side between one end surface of the spacing magnetic plate and the first insulating plate, the first magnetic column, and the two first magnetic arms.
[0013] A further solution is that each group of primary coils is wound one turn in the axial direction of the first magnetic column, and each group of primary coils is wound at least four turns in the radial direction of the first magnetic column.
[0014] A further solution is that the second insulating plate and the second magnetic arm are fixedly connected by epoxy resin glue; and / or, the second insulating plate and a first magnetic plate are fixedly connected by epoxy resin glue; and / or, the spacer magnetic plate is fixedly connected to the first magnetic arms at both ends thereof by epoxy resin glue.
[0015] A further solution is that at least one layer of insulating tape is wrapped around the outer side surfaces of the second magnetic plate, the two second magnetic arms, the four first magnetic arms, the spacer magnetic plate and the first magnetic plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a first-view structural diagram of an embodiment of the utility model of a safe and reliable transformer with integrated inductance.
[0017] Figure 2 This is a structural diagram from a second viewing angle of an embodiment of the utility model of a safe and reliable transformer with integrated inductance.
[0018] Figure 3It is a cross-sectional view of an embodiment of the utility model of a safe and reliable transformer with integrated inductance.
[0019] Figure 4 This is the first partial structural exploded view of the embodiment of the integrated inductor safe and reliable transformer of the utility model.
[0020] Figure 5 This is a second partial structural exploded view of an embodiment of the integrated inductor safe and reliable transformer of the utility model.
[0021] Figure 6 It is an exploded view of the inductor module in the embodiment of the integrated inductor safe and reliable transformer of the utility model.
[0022] Figure 7 It is an exploded view of the transformer module in the embodiment of the integrated inductor safe and reliable transformer of the utility model.
[0023] Figure 8 It is an exploded view of the secondary copper group in the embodiment of the integrated inductor safe and reliable transformer of the utility model.
[0024] Fig. 9 This is a connection structure diagram of three groups of primary coils in an embodiment of the utility model integrated inductor safe and reliable transformer.
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION
[0026] See also Figures 1 to 9This embodiment discloses an integrated inductor safe and reliable transformer 10, including an inductor module 11, a spacing magnetic plate 13 and two groups of transformer modules 12. The inductor module 11, one group of transformer modules 12, the spacing magnetic plate 13 and another group of transformer modules 12 are arranged side by side in sequence, and the two groups of transformer modules 12 are symmetrically arranged about the spacing magnetic plate 13. Among them, each group of transformer modules 12 includes a first magnetic core 120, an insulating ring sleeve 124, three groups of primary coils 126, four groups of secondary copper groups 125, a first insulating plate 128 and two insulating arc pieces 127. The first magnetic core 120 includes a first magnetic plate 121 and a first magnetic column 122 and two first magnetic arms 123 protruding from the inner end surface of the first magnetic plate 121. The two first magnetic arms 123 are symmetrically arranged about the first magnetic column 122. The insulating ring sleeve 124 is sleeved on the first magnetic column 122. The ends of the first magnetic column 122 and the two first magnetic arms 123 away from the first magnetic plate 121 are adjacent to the spacer magnetic plate 13. The first insulating plate 128 is sleeved on the end of the first magnetic column 122 and forms a transformer slot (not marked) with the first magnetic plate 121. The secondary copper groups 125 are arranged side by side on the insulating ring sleeve 124 and are located in the transformer slot. The two secondary copper groups 125 are respectively arranged adjacent to the first magnetic plate 121 and the first insulating plate 128. A winding groove (not marked) is formed between the two adjacent secondary copper groups 125. A primary coil 126 is located in a winding groove and wound on the insulating ring sleeve 124, and the two adjacent primary coils 126 are connected. An insulating arc sheet 127 is located between a first magnetic arm 123 and the secondary copper group 125 in the radial direction of the first magnetic core 120. Each secondary copper group 125 includes two secondary insulating sheets 1252 and a secondary copper sheet 1251. The two secondary insulating sheets 1252 are respectively located at both ends of the secondary copper sheet 1251 in the axial direction of the first magnetic column 122. Furthermore, the inductor module 11 of this embodiment includes an inductor coil 114, a second magnetic core 110 and a second insulating plate 116. The second magnetic core 110 includes a second magnetic plate 111 and a second magnetic column 112 and two second magnetic arms 113 protruding from the inner end surface of the second magnetic plate 111. The two second magnetic arms 113 are symmetrically arranged about the second magnetic column 112. The inductor coil 114 is wound around the second magnetic column 112. The second insulating plate 116 is located at one end of the second magnetic column 112 and the second magnetic arm 113 away from the second magnetic plate 111 and adjacent to the outer end surface of the first magnetic plate 121.
[0027] The inductor module 11, a group of transformer modules 12, a spacing magnetic plate 13 and another group of transformer modules 12 of the integrated inductor safe and reliable transformer 10 of this embodiment are arranged side by side in sequence, and the two groups of transformer modules 12 are symmetrically arranged about the spacing magnetic plate 13. The second insulating plate 116 of the inductor module 11 is located at the end of its second magnetic column 112 and second magnetic arm 113 away from the second magnetic plate 111 and adjacent to the outer end surface of the first magnetic plate 121, so that the multiple magnetic elements of the inductor module 11 and the two groups of transformer modules 12 adopt an integrated structural design to share the magnetic circuit of the spacing magnetic plate 13, and there is no need to set up plastic supports, thereby reducing the number of parts of the resonant transformer 10 integrating the inductor module 11 and the two groups of transformer modules 12, saving manufacturing production costs, and greatly reducing the overall volume of the device, simplifying the manufacturing production process, and thus improving manufacturing production efficiency. At the same time, the integrated inductor safe and reliable transformer 10 of this embodiment isolates and insulates the inductor coil 114 and the second magnetic core 110 from the adjacent first magnetic core 120 through the second insulating plate 116, so that there is a sufficient safety distance between the inductor coil 114 and the primary coil 126 and the secondary copper group 125 of the adjacent transformer module 12, and isolates and insulates the primary coil 126, the secondary copper group 125, the first magnetic core 120 from the spacing magnetic plate 13 through the first insulating plate 128, so that there is a sufficient safety distance between two adjacent transformer modules 12, thereby improving the safety and reliability of the use of the resonant transformer 10 and thus extending its service life. In addition, the integrated inductor safe and reliable transformer 10 of this embodiment uses an insulating ring sleeve 124 to be sleeved on the first magnetic column 122, and the secondary copper group 125 is sleeved on the insulating ring sleeve 124 and the primary coil 126 is wound on the insulating ring sleeve 124, so that the insulating ring sleeve 124 isolates and insulates the primary coil 126 and the secondary copper group 125 from the first magnetic column 122, which can effectively prevent the occurrence of coil breakdown and short circuit, thereby improving the safety and reliability of the resonant transformer 10 and extending its service life. In addition, the integrated inductor safe and reliable transformer 10 of this embodiment has an insulating arc sheet 127 located between a first magnetic arm 123 and a secondary copper group 125 in the radial direction of the first magnetic core 120. The insulating arc sheet 127 isolates and insulates the primary coil 126 and the secondary copper group 125 from the first magnetic arm 123, which can effectively prevent the primary coil 126 and the secondary copper group 125 from having a poor withstand voltage due to insufficient safety distance between the first magnetic arm 123, thereby improving the safety and reliability of the resonant transformer 10 and extending its service life. In addition, the connection between the two adjacent groups of primary coils 126 of the integrated inductor safe and reliable transformer 10 of this embodiment can be achieved by automatic machine winding, thereby achieving automated and efficient winding, good product consistency, and the secondary copper sheet 1251 is produced by standardized stamping and forming, thereby improving manufacturing production efficiency.Therefore, the integrated inductor safe and reliable transformer 10 of this embodiment does not need to be provided with a plastic support, thereby greatly reducing the overall volume of the device, saving manufacturing production costs, simplifying the manufacturing production process, and thus improving manufacturing production efficiency, while achieving automated and efficient winding and good product consistency.
[0028] In order to facilitate the assembly of the three groups of primary coils 126 completed by automated winding with the secondary copper group 125 to improve manufacturing production efficiency, the secondary copper sheet 1251 of this embodiment is provided with a notch groove 12511 in the radial direction of the first magnetic column 122, the notch groove 12511 is located at the outlet end of the primary coil 126, and the two sides of the notch groove 12511 are protruding with a first pin 12512 and a second pin 12513 in the radial direction of the first magnetic column 122, and the secondary insulating sheet 1252 of this embodiment is provided with a wire passing groove 12521 in the radial direction of the first magnetic column 122, and the wire passing groove 12521 is arranged corresponding to the notch groove 12511 in the axial direction of the first magnetic column 122, so that the adjacent primary coils 126 can pass through the notch groove 12511 of the secondary copper sheet 1251 and the wire passing groove 12521 of the secondary insulating sheet 1252 for rapid stacking and assembly.
[0029] In order to improve the standardization and efficiency of automated winding, in this embodiment, each group of primary coils 126 is wound one turn in the axial direction of the first magnetic column 122, and each group of primary coils 126 is wound at least four turns in the radial direction of the first magnetic column 122. This improves product consistency while ensuring working performance, reduces the axial size of the first magnetic column 122, and further reduces the overall volume of the device.
[0030] In order to further improve the insulation performance and safety distance of the inductor module 11, the inductor module 11 of this embodiment also includes a fiber insulation board 115, which is sleeved on the second magnetic column 112, and the fiber insulation board 115 is located between the second insulation board 116 and the inductor coil 114. Among them, the fiber insulation board 115 is a composite insulation board made of epoxy resin filler and glass fiber, and has excellent insulation shielding performance. Specifically, the fiber insulation board 115 of this embodiment is provided with a first V-shaped groove 1151 in the radial direction of the second magnetic column 112, and the first V-shaped groove 1151 is located at the outlet end of the inductor coil 114, and the first V-shaped groove 1151 is filled with insulating glue, so that the outlet end of the inductor coil 114 has better insulation performance and safety distance. Furthermore, in this embodiment, the number of the fiber insulation plates 115 is at least two, and the plurality of fiber insulation plates 115 are arranged side by side on the second magnetic column 112 and located between the second insulation plate 116 and the inductor coil 114 , further improving the insulation performance and safety distance of the inductor module 11 .
[0031] In order to improve the insulation performance and safety distance of the outlet end of the primary coil 126, the first insulating plate 128 of this embodiment is provided with a second V-shaped groove 1281 in the radial direction of the first magnetic column 122, and the second V-shaped groove 1281 is located at the outlet end of the primary coil 126, and the second V-shaped groove 1281 is filled with insulating glue. In addition, each group of transformer modules 12 of this embodiment also includes a spacing insulating sheet 129, and the spacing insulating sheet 129 is located between one end surface of the spacing magnetic plate 13 and the first insulating plate 128, the first magnetic column 122, and the two first magnetic arms 123, thereby improving the insulation performance and safety distance between two adjacent groups of transformer modules 12. Specifically, the number of spacing insulating sheets 129 in this embodiment is at least two, and a plurality of spacing insulating sheets 129 are located side by side between one end surface of the spacing magnetic plate 13 and the first insulating plate 128, the first magnetic column 122, and the two first magnetic arms 123.
[0032] In order to ensure the stability and reliability of the inductor module 11, a group of transformer modules 12, the spacer magnetic plate 13 and another group of transformer modules 12 arranged side by side in sequence as an integrated whole, in this embodiment, the second insulating plate 116 and the second magnetic arm 113 are fixedly connected by epoxy resin glue, the second insulating plate 116 and a first magnetic plate 121 are fixedly connected by epoxy resin glue, and the spacer magnetic plate 13 is fixedly connected to the first magnetic arms 123 at both ends thereof by epoxy resin glue. Among them, the epoxy resin glue has the advantages of high bonding strength, high temperature resistance, and good thermal conductivity.
[0033] In order to further ensure the stability and reliability of the inductor module 11, a group of transformer modules 12, the spacing magnetic plate 13 and another group of transformer modules 12 which are arranged side by side in sequence to form an integrated whole, in this embodiment, the outer sides of the second magnetic plate 111, the two second magnetic arms 113, the four first magnetic arms 123, the spacing magnetic plate 13 and the first magnetic plate 121 are wrapped with at least one layer of insulating tape 14, and the insulating tape 14 can achieve the fixation and insulation of the overall structure.
[0034] The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles of the present invention should be included in the scope of the present invention patent application.
Claims
1. Integrated inductor safe and reliable transformer, characterized in that, It comprises an inductor module, a spacer magnetic plate and two groups of transformer modules, wherein the inductor module, one group of transformer modules, the spacer magnetic plate and another group of transformer modules are arranged side by side in sequence, and the two groups of transformer modules are symmetrically arranged about the spacer magnetic plate; Each group of the transformer module includes a first magnetic core, an insulating ring, three groups of primary coils, four groups of secondary copper groups, a first insulating plate and two insulating arc sheets. The first magnetic core includes a first magnetic plate and a first magnetic column and two first magnetic arms protruding from the inner end surface of the first magnetic plate. The two first magnetic arms are symmetrically arranged about the first magnetic column. The insulating ring is sleeved on the first magnetic column. The first magnetic column and the two first magnetic arms are arranged adjacent to the spacing magnetic plate at the ends away from the first magnetic plate. The first insulating plate is sleeved on the end of the first magnetic column and forms a transformer slot between the first magnetic plate. The four groups of secondary copper groups are arranged side by side. The two groups of secondary copper groups are respectively arranged adjacent to the first magnetic plate and the first insulating plate, a winding groove is formed between the two adjacent groups of secondary copper groups, a group of primary coils is located in one winding groove and wound on the insulating ring sleeve, and the two adjacent groups of primary coils are connected, one insulating arc sheet is located between one of the first magnetic arms and the secondary copper group in the radial direction of the first magnetic core, each group of the secondary copper group includes two secondary insulating sheets and a secondary copper sheet, and the two secondary insulating sheets are respectively located at two ends of the secondary copper sheet in the axial direction of the first magnetic column; The inductor module includes an inductor coil, a second magnetic core and a second insulating plate. The second magnetic core includes a second magnetic plate and a second magnetic column and two second magnetic arms protruding from the inner end surface of the second magnetic plate. The two second magnetic arms are symmetrically arranged about the second magnetic column. The inductor coil is wound around the second magnetic column. The second insulating plate is located at one end of the second magnetic column and the second magnetic arm away from the second magnetic plate and adjacent to the outer end surface of the first magnetic plate.
2. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: The inductor module further includes a fiber insulation board, which is sleeved on the second magnetic column and located between the second insulation board and the inductor coil.
3. The integrated inductor safe and reliable transformer according to claim 2, characterized in that: The fiber insulation plate is provided with a first V-shaped groove in the radial direction of the second magnetic column, the first V-shaped groove is located at the outlet end of the inductor coil, and the first V-shaped groove is filled with insulating glue; And / or, the number of the fiber insulation plates is at least two, and a plurality of the fiber insulation plates are sleeved side by side on the second magnetic column and located between the second insulation plate and the inductor coil.
4. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: The secondary copper sheet is provided with a notch slot in the radial direction of the first magnetic column, the notch slot is located at the outlet end of the primary coil, and a first pin and a second pin are protrudingly provided on both sides of the notch slot in the radial direction of the first magnetic column; The secondary insulating sheet is provided with a wire passing groove penetrating in the radial direction of the first magnetic column, and the wire passing groove is arranged corresponding to the notch groove in the axial direction of the first magnetic column.
5. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: The first insulating plate is provided with a second V-shaped groove in the radial direction of the first magnetic column, the second V-shaped groove is located at the output end of the primary coil, and the second V-shaped groove is filled with insulating glue.
6. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: Each group of the transformer modules further includes a spacing insulating sheet, and the spacing insulating sheet is located between one end surface of the spacing magnetic plate and the first insulating plate, the first magnetic column, and the two first magnetic arms.
7. The integrated inductor safe and reliable transformer according to claim 6, characterized in that: The number of the spacer insulating sheets is at least two, and the plurality of spacer insulating sheets are arranged side by side between one end surface of the spacer magnetic plate and the first insulating plate, the first magnetic column, and the two first magnetic arms.
8. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: The number of winding turns of each group of the primary coils in the axial direction of the first magnetic column is one turn, and the number of winding turns of each group of the primary coils in the radial direction of the first magnetic column is at least four turns.
9. The integrated inductor safe and reliable transformer according to claim 1, characterized in that: The second insulating plate and the second magnetic arm are fixedly connected by epoxy resin glue; And / or, the second insulating plate is fixedly connected to one of the first magnetic plates by epoxy resin glue; And / or, the spacer magnetic plate is fixedly connected to the first magnetic arms at both ends thereof by epoxy resin glue.
10. The integrated inductor safe and reliable transformer according to any one of claims 1 to 9, characterized in that: At least one layer of insulating tape is wrapped around outer sides of the second magnetic plate, the two second magnetic arms, the four first magnetic arms, the spacer magnetic plate and the first magnetic plate.