Integrated transformer
By adopting a chip terminal structure and a flat coil in the integrated transformer, combined with the magnetic core positioning structure, the problems of PIN foot deformation and disconnection are solved, and the stability and reliability of the integrated transformer are improved.
Patent Information
- Application Number
- CN202422254924.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing DC-DC integrated transformer leads to deformation and disconnection in the PIN pin, resulting in installation deviation and insufficient tin, and problems of overcurrent abnormality and poor stability and reliability.
The chip terminal structure and flat coil are adopted, combined with the positioning structure in the core structure to reduce the deformation and disconnection of the end feet and improve stability.
Through the chip terminal structure and flat coil, the volume of the integrated transformer is reduced and its stability and reliability are improved.
Smart Images
Figure CN223123715U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformers, and particularly relates to an integrated transformer. Background Technique
[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.
[0003] Conventional DC-DC integrated transformers generally adopt an assembly method of "magnetic core - primary coil - secondary coil - epoxy board", and the PIN pins adopt a direct pin-out or copper bus bar welding and then pin-out method. However, the direct pin-out method of PIN pins will cause deformation of the PIN pins, resulting in the risk of misalignment or insufficient soldering during the use of the integrated transformer; when the winding uses multi-strand wires, it is extremely easy to cause wire breakage, resulting in overcurrent anomalies or open circuits during the use of the integrated transformer, and causing problems such as product temperature rise and poor stability and reliability. Summary of the Utility Model
[0004] To solve the above problems, the utility model proposes an integrated transformer. By adopting a chip terminal structure and a flat coil, the utility model reduces the deformation or wire breakage of the end feet, reduces the overall volume of the integrated transformer, and at the same time, adds a positioning structure to the magnetic core structure to improve the stability and reliability of the integrated transformer.
[0005] According to some embodiments, the first solution of the utility model provides an integrated transformer, which adopts the following technical scheme:
[0006] An integrated transformer includes a base and a magnetic component disposed on the base. The magnetic component includes a transformer and an inductor; the inductor includes a first inductor magnetic core, a second inductor magnetic core, and an inductor coil wound around the first inductor magnetic core and the second inductor magnetic core; the transformer includes a first transformer magnetic core, a second transformer magnetic core, and a transformer coil structure disposed on the first transformer magnetic core and the second transformer magnetic core; the transformer coil structure includes a plurality of alternately arranged primary coil skeletons and secondary coil groups, and a primary coil is disposed on the primary coil skeleton; the inductor coil, the primary coil, and the secondary coil groups all adopt flat coils; an isolation strip and an isolation block are disposed on the base; a chip terminal structure for connecting the transformer coil structure and the inductor coil is further disposed on the base.
[0007] As a further technical limitation, the base includes a first partition and a second partition; a first secondary terminal slot, a second secondary terminal slot, and a third secondary terminal slot are provided on the first partition; the isolation strip includes a first isolation strip disposed between the first secondary terminal slot and the second secondary terminal slot, and a second isolation strip disposed between the second secondary terminal slot and the third secondary terminal slot.
[0008] Further, the chip terminal structure includes a first secondary terminal, a second secondary terminal, and a third secondary terminal; the first secondary terminal, the second secondary terminal, and the third secondary terminal are sequentially disposed in the first secondary terminal slot, the second secondary terminal slot, and the third secondary terminal slot; after the second secondary terminal extends out of the second secondary terminal slot, it extends to the second partition, one side of the second secondary terminal is disposed below the first secondary terminal, and both the first secondary terminal and the third secondary terminal are fixed in the embedded nut of the base by bolts.
[0009] Further, the first secondary terminal and the third secondary terminal are both provided with secondary terminal through holes that are the same in number and size; the second secondary terminal disposed in the first partition is provided with a group of secondary terminal through holes that are the same in number as the secondary terminal through holes, and two adjacent secondary terminal through holes of the same size are provided in the group of secondary terminal through holes.
[0010] Further, the chip terminal structure further includes a fourth secondary terminal disposed in the second partition, and two spaced-apart and identically-sized inductance terminal through holes are provided on both the second secondary terminal disposed in the second partition and the fourth secondary terminal; the fourth secondary terminal is fixed in the embedded nut of the base by bolts.
[0011] Further, the chip terminal structure further includes a first primary terminal and a second primary terminal disposed at the edge of the first partition, and both the first primary terminal and the second primary terminal are fixed in the embedded nut of the base by bolts.
[0012] Further, the isolation block includes a first isolation block for separating the first primary terminal and the first secondary terminal, and a second isolation block for separating the second primary terminal and the second secondary terminal.
[0013] As a further technical limitation, a plurality of limiting blocks for fixing the first inductance core, the second inductance core, the first transformer core, and the second transformer core are provided on the base.
[0014] As a further technical limitation, the first transformer core includes a first middle leg, a first side leg and a second side leg; the second transformer core includes a second middle leg, a third side leg and a fourth side leg; the end of the first middle leg is provided with a first step, and the end of the second middle leg is provided with a second step adapted to the first step; the end of the first side leg is provided with a third step, and the end of the third side leg is provided with a fourth step adapted to the third step; the end of the second side leg is provided with a fifth step, and the end of the fourth side leg is provided with a sixth step adapted to the fifth step; the transformer coil structure is sleeved on the first middle leg and the second middle leg; the interiors of the first side leg, the second side leg, the third side leg and the fourth side leg are all provided with arc-shaped grooves.
[0015] As a further technical limitation, the first inductor core includes a third middle leg, a fifth side leg and a sixth side leg; the second inductor core includes a fourth middle leg, a seventh side leg and an eighth side leg; the end of the third middle leg is provided with a seventh step, and the end of the fourth middle leg is provided with an eighth step adapted to the seventh step; the end of the fifth side leg is provided with a ninth step, and the end of the seventh side leg is provided with a tenth step adapted to the ninth step; the end of the sixth side leg is provided with an eleventh step, and the end of the eighth side leg is provided with a twelfth step adapted to the eleventh step; the inductor coil is sleeved on the third middle leg and the fourth middle leg; the interiors of the fifth side leg, the sixth side leg, the seventh side leg and the eighth side leg are all provided with arc-shaped grooves.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] By adopting the chip terminal structure and the flat coil, the present utility model reduces the deformation or disconnection of the end feet while reducing the overall volume of the integrated transformer. At the same time, a positioning structure is added to the core structure to improve the stability and reliability of the integrated transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The schematic diagrams in the specification forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.
[0019] Figure 1 is a schematic structural diagram of an integrated transformer in an embodiment of the present utility model;
[0020] Figure 2 is a schematic structural diagram of an integrated transformer in an embodiment of the present utility model;
[0021] Figure 3It is a schematic diagram of an explosion structure of an integrated transformer in an embodiment of the present utility model;
[0022] Figure 4 It is a schematic diagram of a structure of a base in an embodiment of the present utility model;
[0023] Figure 5 It is a schematic diagram of a structure of a base in an embodiment of the present utility model;
[0024] Figure 6 It is a schematic diagram of an explosion structure of a base in an embodiment of the present utility model;
[0025] Figure 7 It is a partial schematic diagram of a chip terminal structure in an embodiment of the present utility model;
[0026] Figure 8 It is a partial schematic diagram of a chip terminal structure in an embodiment of the present utility model;
[0027] Figure 9 It is a schematic diagram of a structure of a magnetic component in an embodiment of the present utility model;
[0028] Figure 10 It is a schematic diagram of a structure of a magnetic component in an embodiment of the present utility model;
[0029] Figure 11 It is a schematic diagram of an explosion structure of a magnetic component in an embodiment of the present utility model;
[0030] Figure 12 It is a schematic diagram of a structure of a transformer coil structure in an embodiment of the present utility model;
[0031] Figure 13 It is a schematic diagram of a structure of a primary coil in an embodiment of the present utility model;
[0032] Figure 14 It is a schematic diagram of a structure of a primary coil skeleton in an embodiment of the present utility model;
[0033] Figure 15 It is a schematic diagram of a structure of a secondary coil group in an embodiment of the present utility model;
[0034] Figure 16 It is a schematic diagram of a structure of a secondary coil group in an embodiment of the present utility model;
[0035] Figure 17 It is a schematic diagram of a structure of a first transformer core in an embodiment of the present utility model;
[0036] Figure 18 It is a schematic diagram of a structure of a second transformer core in an embodiment of the present utility model;
[0037] Figure 19 Schematic diagram of an explosion structure of an inductor in an embodiment of the present utility model;
[0038] Figure 20 Schematic diagram of a structure of an inductor coil in an embodiment of the present utility model;
[0039] Figure 21 Schematic diagram of a structure of a first inductor core in an embodiment of the present utility model;
[0040] Figure 22 Schematic diagram of a structure of a second inductor core in an embodiment of the present utility model;
[0041] Wherein, 1. Base; 11. First isolation strip; 12. Second isolation strip; 13. First isolation block; 14. Second isolation block; 15. First partition; 151. First secondary terminal slot; 152. Second secondary terminal slot; 153. Third secondary terminal slot; 16. Second partition; 17. Embedded nut slot; 18. Bushing hole; 181. Bushing; 19. Limit block; 110. Embedded nut; 2. Magnetic component; 21. Transformer; 211. First transformer core; 2111. First middle column; 21111. First step; 2112. First side column; 21121. Third step; 2113. Second side column; 21131. Fifth step; 212. Second transformer core; 2121. Second middle column; 21211. Second step; 2122. Third side column; 21221. Fourth step; 2123. Fourth side column; 21231. Sixth step; 213. Transformer coil structure; 2131. Primary coil skeleton; 2132. Secondary coil group; 21321. First secondary coil; 213211. First end foot; 213212. Second end foot; 21322. Second secondary coil; 213221. Third end foot; 213222. Fourth end foot; 2133. Primary coil; 22. Inductor; 221. First inductor core; 2211. Third middle column; 22111. Seventh step; 2212. Fifth side column; 22121. Ninth step; 2213. Sixth side column; 22131. Eleventh step; 222. Second inductor core; 2221. Fourth middle column; 22211. Eighth step; 2222. Seventh side column; 22221. Tenth step; 2223. Eighth side column; 22231. Twelfth step; 223. Inductor coil; 2231. Inductor coil end foot; 23. Arc-shaped groove; 3. Chip terminal structure; 31. First secondary terminal; 311. First secondary terminal fixing hole; 32. Second secondary terminal; 33. Third secondary terminal; 331. Third secondary terminal fixing hole; 34. Fourth secondary terminal; 341. Fourth secondary terminal fixing hole; 35. First primary terminal; 351. First primary terminal fixing hole; 36. Second primary terminal; 361. Second primary terminal fixing hole; 37. Secondary terminal through hole; 38. Secondary terminal through hole group; 39. Inductor terminal through hole. Detailed implementation mode
[0042] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0043] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.
[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0045] In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only relational terms determined for the convenience of describing the structural relationship of various components or elements of the present utility model and do not specifically refer to any component or element in the present utility model and should not be construed as a limitation to the present utility model.
[0046] In the present utility model, terms such as "fixed connection", "connected", "connected" should be understood in a broad sense, which may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances and should not be construed as a limitation to the present utility model.
[0047] Embodiment
[0048] This embodiment provides an integrated transformer.
[0049] As Figure 1 、 Figure 2 and Figure 3 shown, an integrated transformer includes a base 1 and a magnetic component 2 disposed on the base 1.
[0050] Next, a detailed structural description will be given in conjunction with the accompanying drawings of the specification.
[0051] As Figure 4 、 Figure 5 and Figure 6 shown, the base 1 includes a first partition 15 and a second partition 16; wherein, a first secondary terminal slot 151, a second secondary terminal slot 152 and a third secondary terminal slot 153 are provided in the first partition 15; wherein, a first isolation strip 11 is provided between the first secondary terminal slot 151 and the second secondary terminal slot 152, and a second isolation strip 12 is provided between the second secondary terminal slot 152 and the third secondary terminal slot 153.
[0052] As Figure 8As shown, a first secondary terminal 31 arranged in an L shape is disposed in the first secondary terminal slot 151. A first secondary terminal fixing hole 311 is provided at the end of the first secondary terminal 31. An embedded nut groove 17 with an internally embedded nut 110 adapted to the first secondary terminal fixing hole 311 is formed on the base 1. A plurality of secondary terminal through holes 37 are provided on the first secondary terminal 31.
[0053] As Figure 8 shown, a second secondary terminal 32 arranged in an L shape and extending to the second partition 16 is disposed in the second secondary terminal slot 152. The second secondary terminal 32 at the joint of the first partition 15 and the second partition 16 is placed below the first secondary terminal 31. A plurality of secondary terminal through hole groups 38 and two inductance terminal through holes 39 of the same size are provided on the second secondary terminal 32.
[0054] As Figure 8 shown, a third secondary terminal 33 is disposed in the third secondary terminal slot 153. A third secondary terminal fixing hole 331 is provided at the end of the third secondary terminal 33. An embedded nut groove 17 with an internally embedded nut 110 adapted to the third secondary terminal fixing hole 331 is formed on the base 1. A plurality of secondary terminal through holes 37 are provided on the third secondary terminal 33.
[0055] It should be noted that the number of the secondary terminal through holes 37 provided on the first secondary terminal 31, the secondary terminal through hole groups 38 provided on the second secondary terminal 32, and the secondary terminal through holes 37 provided on the third secondary terminal 33 should be kept the same.
[0056] In this embodiment, a fourth secondary terminal 34 as Figure 8 shown is further disposed in the second partition 16. Inductance terminal through holes 39 exactly the same as those on the second secondary terminal 32 are formed on the fourth secondary terminal. A fourth secondary terminal fixing hole 341 is provided at the end of the fourth secondary terminal 34. An embedded nut groove 17 with an internally embedded nut 110 adapted to the fourth secondary terminal fixing hole 341 is formed on the base 1.
[0057] A first primary terminal 35 and a second primary terminal 36 as Figure 7 shown are further disposed at the edge of the first partition 15. First primary terminal fixing holes 351 and second primary terminal fixing holes 361 are respectively provided at the ends of the first primary terminal 35 and the second primary terminal 36. Embedded nut grooves 17 with an internally embedded nut 110 adapted to the first primary terminal fixing hole 351 and the second primary terminal fixing hole 361 are respectively formed on the base 1.
[0058] It should be noted that a primary coil connecting wire (not marked in the figure) matching the primary coil 2133 is provided in the base 1. With the help of the primary coil connecting wire, the primary coil 2133 is electrically connected to the first primary terminal 35 and the second primary terminal 36 respectively.
[0059] In this embodiment, a first isolation block 13 is set between the first primary terminal 35 and the first secondary terminal 31, and a second isolation block 14 is set between the second primary terminal 36 and the second secondary terminal 32; the first isolation block 13 and the second isolation block 14 serve to reduce the problem of poor withstand voltage caused by insufficient safety distance between the secondary and the primary.
[0060] It should be noted that the first secondary terminal 31 , the second secondary terminal 32 , the third secondary terminal 33 , the fourth secondary terminal 34 , the first primary terminal 35 and the second primary terminal 36 constitute a sheet-type terminal structure 3 (not marked in the drawings).
[0061] To achieve the fixing of the position of the transformer 21 and the inductor 22, as shown in FIG. Figure 4 As shown, in this embodiment, six limit blocks 19 are arranged on the base 1 .
[0062] In order to achieve effective connection between the transformer and other devices, bushing holes 18 with built-in bushings 181 are respectively provided on both sides of the base 1 in this embodiment.
[0063] like Figure 9 , Figure 10 and Figure 11 The magnetic component 2 shown includes a transformer 21 and an inductor 22 , and this embodiment is described in detail in terms of structure in conjunction with the relevant drawings.
[0064] like Figure 11 As shown, the transformer 21 includes a first transformer core 211, a second transformer core 212, and a plurality of components disposed on the first transformer core 211 and the second transformer core 212. Figure 12 The transformer coil structure 213 shown in FIG. 2 includes a plurality of staggered configurations such as Figure 14 The primary coil frame 2131 shown and Figure 15 The secondary coil assembly 2132 shown in the figure has a primary coil frame 2131 provided with Figure 13 The primary coil 2133 is shown.
[0065] exist Figure 15 In the embodiment, the secondary coil group 2132 includes a first secondary coil 21321 and a second secondary coil 21322; Figure 16As shown, the first secondary coil 21321 has a first terminal pin 213211 and a second terminal pin 213212 at its end, and the second secondary coil 21322 has a third terminal pin 213221 and a fourth terminal pin 213222 at its end. The front of the first secondary coil 21321 coincides with the back of the second secondary coil 21322, and the first terminal pin 213211 is in contact with the third terminal pin 213221; both the second terminal pin 213212 and the fourth terminal pin 213222 are placed in the secondary terminal through-hole 37, and the first terminal pin 213211 and the third terminal pin 213221 are placed in the secondary terminal through-hole group 38.
[0066] As Figure 17 shown, the first transformer core 211 includes a first middle column 2111, a first side column 2112, and a second side column 2113; as Figure 18 shown, the second transformer core 212 includes a second middle column 2121, a third side column 2122, and a fourth side column 2123; to better achieve the fitting of the first transformer core 211 and the second transformer core 212 in terms of position, in this embodiment, the end of the first middle column 2111 is set as a first step 21111, and the end of the second middle column 2121 is set as a second step 21211 adapted to the first step 21111; the end of the first side column 2112 is set as a third step 21121, and the end of the third side column 2122 is set as a fourth step 21221 adapted to the third step 21121; the end of the second side column 2113 is set as a fifth step 21131, and the end of the fourth side column 2123 is set as a sixth step 21231 adapted to the fifth step 21131; the transformer coil structure 213 is sleeved on the first middle column 2111 and the second middle column 2121.
[0067] It should be noted that, to achieve the matching setting between the transformer coil structure 213 and the first transformer core 211 and the second transformer core 212, the interiors of the first side column 2112, the second side column 2113, the third side column 2122, and the fourth side column 2123 are all set as arc-shaped grooves 23.
[0068] As Figure 11 and Figure 19 shown, the inductor 22 includes a first inductor core 221, a second inductor core 222, and an inductor coil 223 wound around the first inductor core 221 and the second inductor core 222.
[0069] As Figure 20 shown, the end of the inductor coil 223 has two inductor coil terminal pins 2231, and the inductor coil terminal pins 2231 are placed in the inductor terminal through-hole 39.
[0070] As Figure 21The first inductance core 221 shown includes a third central leg 2211, a fifth side leg 2212, and a sixth side leg 2213; as Figure 22 The second inductance core 222 shown includes a fourth central leg 2221, a seventh side leg 2222, and an eighth side leg 2223; to better achieve the fitting of the first inductance core 221 and the second inductance core 222 in terms of position, in this embodiment, the end of the third central leg 2211 is provided with a seventh step 22111, and the end of the fourth central leg 2221 is provided with an eighth step 22211 adapted to the seventh step 22111; the end of the fifth side leg 2212 is provided with a ninth step 22121, and the end of the seventh side leg 2222 is provided with a tenth step 22221 adapted to the ninth step 22121; the end of the sixth side leg 2213 is provided with an eleventh step 22131, and the end of the eighth side leg 2223 is provided with a twelfth step 22231 adapted to the eleventh step 22131; the inductance coil 223 is sleeved on the third central leg 2211 and the fourth central leg 2221.
[0071] It should be noted that to achieve the matching setting between the inductance coil 223, the first inductance core 221, and the second inductance core 222, the interiors of the fifth side leg 2212, the sixth side leg 2213, the seventh side leg 2222, and the eighth side leg 2223 are all provided with arc-shaped grooves 23.
[0072] It should be noted that the inductance coil 223, the primary coil 2133, and the secondary coil group 2132 are all flat coils.
[0073] In this embodiment, by adopting a chip terminal structure and flat coils, while reducing the deformation or disconnection of the end feet, the overall volume of the integrated transformer is reduced. At the same time, a positioning structure is added to the core structure to improve the stability and reliability of the integrated transformer.
[0074] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
[0075] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.
Claims
1. An integrated transformer, comprising a base and a magnetic component disposed on the base, the magnetic component including a transformer and an inductor; the inductor includes a first inductor core, a second inductor core, and an inductor coil wound around the first inductor core and the second inductor core; the transformer includes a first transformer core, a second transformer core, and a transformer coil structure disposed on the first transformer core and the second transformer core; characterized in that, The transformer coil structure includes a number of primary coil skeletons and secondary coil groups arranged alternately, and a primary coil is provided on the primary coil skeleton; the inductance coil, the primary coil, and the secondary coil group all adopt flat coils; an isolation strip and isolation blocks are provided on the base; a chip terminal structure for connecting the transformer coil structure and the inductance coil is also provided on the base.
2. An integrated transformer as described in claim 1, characterized in that, The base includes a first partition and a second partition; a first secondary terminal slot, a second secondary terminal slot, and a third secondary terminal slot are provided on the first partition; the isolation strip includes a first isolation strip provided between the first secondary terminal slot and the second secondary terminal slot, and a second isolation strip provided between the second secondary terminal slot and the third secondary terminal slot.
3. An integrated transformer as described in claim 2, wherein, The chip terminal structure includes a first secondary terminal, a second secondary terminal, and a third secondary terminal; the first secondary terminal, the second secondary terminal, and the third secondary terminal are sequentially arranged in the first secondary terminal slot, the second secondary terminal slot, and the third secondary terminal slot; after the second secondary terminal extends out of the second secondary terminal slot, it extends to the second partition, one side of the second secondary terminal is arranged below the first secondary terminal, and both the first secondary terminal and the third secondary terminal are fixed in the embedded nuts on the base by bolts.
4. An integrated transformer as described in claim 3, characterized in that, The first secondary terminal and the third secondary terminal are both provided with secondary terminal through holes that are the same in number and size; the second secondary terminal arranged in the first partition is provided with a secondary terminal through hole group that is the same in number as the secondary terminal through holes, and two adjacent secondary terminal through holes of the same size are provided in the secondary terminal through hole group.
5. An integrated transformer as described in claim 3, characterized in that, The chip terminal structure further includes a fourth secondary terminal arranged in the second partition, and two spaced-apart inductance terminal through holes of the same size are provided on both the second secondary terminal arranged in the second partition and the fourth secondary terminal; the fourth secondary terminal is fixed in the embedded nuts on the base by bolts.
6. An integrated transformer as described in claim 3, wherein The chip terminal structure further includes a first primary terminal and a second primary terminal arranged at the edge of the first partition, and both the first primary terminal and the second primary terminal are fixed in the embedded nuts on the base by bolts.
7. An integrated transformer as described in claim 6, characterized in that, The isolation block includes a first isolation block for separating the first primary terminal and the first secondary terminal, and a second isolation block for separating the second primary terminal and the second secondary terminal.
8. An integrated transformer as described in claim 1, characterized in that, A number of limiting blocks for fixing the first inductance core, the second inductance core, the first transformer core, and the second transformer core are provided on the base.
9. An integrated transformer as described in claim 1, characterized in that, The first transformer core includes a first middle column, a first side column and a second side column; the second transformer core includes a second middle column, a third side column and a fourth side column; the end of the first middle column is provided with a first step, and the end of the second middle column is provided with a second step adapted to the first step; the end of the first side column is provided with a third step, and the end of the third side column is provided with a fourth step adapted to the third step; the end of the second side column is provided with a fifth step, and the end of the fourth side column is provided with a sixth step adapted to the fifth step; the transformer coil structure is sleeved on the first middle column and the second middle column; the interiors of the first side column, the second side column, the third side column and the fourth side column are all provided with arc-shaped grooves.
10. An integrated transformer as described in claim 1, characterized in that, The first inductor core includes a third middle column, a fifth side column and a sixth side column; the second inductor core includes a fourth middle column, a seventh side column and an eighth side column; the end of the third middle column is provided with a seventh step, and the end of the fourth middle column is provided with an eighth step adapted to the seventh step; the end of the fifth side column is provided with a ninth step, and the end of the seventh side column is provided with a tenth step adapted to the ninth step; the end of the sixth side column is provided with an eleventh step, and the end of the eighth side column is provided with a twelfth step adapted to the eleventh step; the inductor coil is sleeved on the third middle column and the fourth middle column; the interiors of the fifth side column, the sixth side column, the seventh side column and the eighth side column are all provided with arc-shaped grooves.