Laminated transformer

Abstract

The utility model relates to the technical field of electronic components, in particular to a laminated transformer which comprises a first cover plate, a lamination assembly and a second cover plate which are arranged in sequence, the lamination assembly is composed of a plurality of lamination supports, the lamination supports are stacked in sequence, each lamination support comprises a first connecting table, a connecting column and a second connecting table which are arranged in sequence, and the first connecting table is connected with the second connecting column. Every two adjacent lamination supports are connected through the corresponding first connecting table and the corresponding second connecting table, the first cover plate is connected with the first connecting table of the first lamination support, and the second cover plate is connected with the last second connecting table. According to the utility model, the first cover plate, the lamination assembly and the second cover plate are arranged in sequence to form a whole body which is compact in structure and clear in gradation. The plurality of lamination brackets are stacked in sequence, so that the space utilization is optimized, and the occupied area is reduced, so that the transformer can better meet the requirements of a modern power system on miniaturization and light weight of equipment while keeping high performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic component technical field, in particular to a laminated transformer. BACKGROUND

[0002] Power adapter, also known as external power supply, is a kind of small portable electronic equipment and electronic appliance power conversion equipment. It is widely used in mobile phones, LCD, computer notebook and other small electronic equipment, and is also commonly used in security cameras, TV set-top boxes, wireless routers, light bars, massage instruments and other equipment. The basic working principle of power adapter is to convert AC input into DC output, which is usually composed of shell, transformer, inductor, capacitor, control IC, PCB and other components.

[0003] Inside the power adapter, the transformer receives the input AC voltage through the primary coil, and induces the corresponding voltage in the secondary coil through the magnetization of the core. By adjusting the turns ratio of the primary and secondary coils, the voltage can be raised or lowered, thus meeting the voltage requirements of different devices.

[0004] The existing transformer occupies a large space in use due to the structural design, affecting the stability. Therefore, new improvements need to be made to the existing transformer structure. UTILITY MODEL CONTENT

[0005] To solve the above problems, the utility model forms a compact structure and clear hierarchy by sequentially arranging the first cover plate, the lamination assembly and the second cover plate. The sequential stacking of multiple lamination supports not only optimizes the space utilization, but also reduces the floor area, so that the transformer is more suitable for the demand of modern power system for small and light equipment while maintaining high performance.

[0006] The utility model discloses a technical scheme adopted is: a kind of lamination transformer, including first cover plate, lamination assembly and second cover plate sequentially arranged, the lamination assembly is made of multiple lamination supports, multiple lamination supports are sequentially stacked, the lamination support includes first connecting table, connecting column and second connecting table sequentially arranged, and first connecting table and second connecting table are connected between adjacent two lamination supports, first connecting table of first lamination support is connected with the first cover plate, and second connecting table of last one is connected with the second cover plate;First fixed groove is provided on the first connecting table, and second fixed groove is provided on the second connecting table, first pole piece is provided on the first fixed groove, and second pole piece is provided on the second fixed groove;First connecting table side is provided with first wiring part, and second connecting table side is provided with second wiring part, first pole piece is provided with first extension, and one end of first extension extends to first wiring part, second pole piece is provided with second extension, and one end of second extension extends to second wiring part.

[0007] Further improvement of the above scheme is that the first connecting table, the connecting column and the second connecting table are integrally injection molded;The connecting column is centrally arranged on the lamination support, the connecting column is provided with a through hole, the first cover plate is provided with a first through hole, the second cover plate is provided with a second through hole, and the first through hole and the second through hole are respectively opposite to both ends of the through hole.

[0008] Further improvement of the above scheme is that the first through hole is provided with a first mounting clamp on both sides, and the second through hole is provided with a second mounting clamp on both sides.

[0009] Further improvement of the above scheme is that one side of the first connecting table is provided with a first assembly positioning strip and a first positioning buckle, and the first assembly positioning strip is used for first pole piece assembly positioning.

[0010] Further improvement of the above scheme is that one side of the second connecting table is provided with a second assembly positioning strip and a second positioning buckle, and the second assembly positioning strip is used for second pole piece assembly positioning.

[0011] Further improvement of the above scheme is that the first positioning buckle is used for cooperating with the second positioning buckle to connect adjacent two lamination supports.

[0012] Further improvement of the above scheme is that one side of the first pole piece is provided with a first positioning step, and the first positioning step is used for cooperating with the first assembly positioning strip to position the first pole piece on the first connecting table.

[0013] Further improvement of the above scheme is that one side of the second pole piece is provided with a second positioning step, and the second positioning step is used for cooperating with the second assembly positioning strip to position the second pole piece on the second connecting table.

[0014] Further improvement of the above scheme is that one end of the first pole piece is provided with a first positioning clamping groove, and the first positioning clamping groove is used for cooperating with a first positioning buckle to position the direction of the first pole piece.

[0015] Further improvement of the above scheme is that the first cover plate is provided with a first cooperating buckle, and the first cooperating buckle is used for cooperating with the first positioning buckle.

[0016] Further improvement of the above scheme is that the second cover plate is provided with a second cooperating buckle, and the second cooperating buckle is used for cooperating with the second positioning buckle.

[0017] Further improvement of the above scheme is that the two sides of the first connecting table are provided with first assembly buckles, the two sides of the second connecting table are provided with second assembly clamping grooves, and the first connecting table is clamped with the second connecting table through the first assembly buckles and the second assembly clamping grooves.

[0018] Further improvement of the above scheme is that the two sides of the first cover plate are provided with first assembly clamping grooves, and the first assembly clamping grooves are used for buckling on the first assembly buckles; the two sides of the second cover plate are provided with second assembly buckles, and the second assembly clamping grooves are used for buckling on the second assembly buckles.

[0019] Further improvement of the above scheme is that the first wiring part is provided with a first wiring clamping groove, the second wiring part is provided with a second wiring clamping groove, and the first wiring clamping groove and the second wiring clamping groove are opposite.

[0020] Further improvement of the above scheme is that the first cover plate is provided with a first threading groove, and the first threading groove is opposite to the first wiring clamping groove; the second cover plate is provided with a second threading groove, and the second threading groove is opposite to the second wiring clamping groove.

[0021] The utility model has the advantages of:

[0022] Compared with the existing transformer, the utility model discloses a first cover plate, lamination assembly and second cover plate are set gradually, formed a compact structure, the whole of distinct levels. The stacking of multiple lamination supports not only optimizes the space utilization, but also reduces the floor area, so that the transformer is in keeping high performance, more adapt to the demand of modern power system to the miniaturization of equipment, light weight. Secondly, the unique design of lamination support enhances the stability and reliability of transformer. Each lamination support is set gradually by first connecting table, connecting column and second connecting table, this design not only guarantees the stable stacking of lamination assembly, still through the support effect of connecting column, effectively disperses the stress and vibration generated in the operation process of transformer, prolongs the service life of equipment. By setting first fixed groove and second fixed groove on first connecting table and second connecting table respectively, and installing first pole piece and second pole piece on it, realize the accuracy and stability of electrical connection. The setting of first pole piece and second pole piece not only ensures the effective transmission of current and voltage in transformer, but also through the first extension and second extension on it, guides the current to first wiring part and second wiring part respectively, so as to realize the convenient connection with external circuit. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional schematic view of the lamination transformer of the utility model;

[0024] Figure 2 It is Figure 1 It is the side view schematic view of the lamination transformer in the middle;

[0025] Figure 3 It is Figure 1 It is the explosion schematic view of the lamination transformer in the middle;

[0026] Figure 4 It is Figure 1 It is the explosion schematic view of the partial structure of the lamination transformer in the middle;

[0027] Figure 5 It is Figure 1 It is the explosion schematic view of the partial structure of the lamination transformer in the middle.

[0028] The first cover plate 1, first perforation 11, first installation clamp 111, first cooperation buckle 12, first assembly clamping groove 13, first threading groove 14 are explained to the drawing mark:

[0029] Lamination assembly 2, second cover plate 3, second perforation 31, second installation clamp 311, second cooperation buckle 32, second assembly buckle 33, second threading groove 34 are explained to the drawing mark:

[0030] Laminated bracket 4, first connecting table 41, first fixed groove 411, first wiring part 412, first assembly positioning strip 413, first positioning buckle 414, first assembly buckle 415, first wiring buckle slot 416, connecting column 42, through hole 421, second connecting table 43, second fixed groove 431, second wiring part 432, second assembly positioning strip 433, second positioning buckle 434, second assembly buckle slot 435, second wiring buckle slot 436;

[0031] First pole piece 5, first extension 51, first positioning step 52, first positioning buckle slot 53;

[0032] Second pole piece 6, second extension 61, second positioning step 62, second positioning buckle slot 63. DETAILED DESCRIPTION

[0033] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present application can be more thoroughly and completely understood.

[0034] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. Figures 1-5The utility model discloses a kind of laminated transformers, including first cover plate 1, laminated assembly 2 and second cover plate 3 arranged in sequence, the laminated assembly 2 is formed by multiple lamination supports 4, multiple lamination supports 4 are stacked in sequence, the lamination support 4 includes first connecting table 41, connecting column 42 and second connecting table 43 arranged in sequence, first connecting table 41 and second connecting table 43 are connected between adjacent two lamination supports 4, the first cover plate 1 is connected with the first connecting table 41 of first lamination support 4, and the second cover plate 3 is connected with the second connecting table 43 of last one;First connecting table 41 is provided with first fixed groove 411, and second connecting table 43 is provided with second fixed groove 431, first fixed groove 411 is provided with first pole piece 5, and second fixed groove 431 is provided with second pole piece 6;First connecting table 41 is provided with first wiring portion 412 on one side, and second connecting table 43 is provided with second wiring portion 432 on one side, and first pole piece 5 is provided with first extension 51, and one end of first extension 51 extends to first wiring portion 412, and second pole piece 6 is provided with second extension 61, and one end of second extension 61 extends to second wiring portion 432.This embodiment is arranged in sequence by first cover plate 1, laminated assembly 2 and second cover plate 3, and a compact structure, clear level whole is formed.Multiple lamination supports 4 are stacked in sequence, not only optimize space utilization, but also reduce floor area, so that transformer is more suitable for modern power system to the demand of equipment miniaturization, light weight while maintaining high performance.Second, the unique design of lamination support 4 enhances the stability and reliability of transformer.Each lamination support 4 is arranged in sequence by first connecting table 41, connecting column 42 and second connecting table 43, and this design not only guarantees the stable stacking of laminated assembly 2, but also effectively disperses the stress and vibration generated during operation of transformer through the supporting action of connecting column 42, prolongs the service life of equipment.By setting first fixed groove 411 and second fixed groove 431 on first connecting table 41 and second connecting table 43 respectively, and installing first pole piece 5 and second pole piece 6 thereon, the accuracy and stability of electrical connection are realized.The setting of first pole piece 5 and second pole piece 6 not only ensures the effective transmission of current and voltage in transformer, but also guides current to first wiring portion 412 and second wiring portion 432 respectively through first extension 51 and second extension 61 on it, so as to realize the convenient connection with external circuit.

[0036] The first connecting platform 41 is integrally injection molded with the connecting column 42 and the second connecting platform 43. The connecting column 42 is centrally arranged on the lamination support 4. The connecting column 42 is provided with a through hole 421. The first cover plate 1 is provided with a first through hole 11. The second cover plate 3 is provided with a second through hole 31. The first through hole 11 and the second through hole 31 are respectively opposite to the two ends of the through hole 421. Specifically, the two sides of the first through hole 11 are provided with first mounting clamps 111. The two sides of the second through hole 31 are provided with second mounting clamps 311. In this embodiment, the integrally injection molding technology ensures seamless connection between the connecting platform and the connecting column 42, effectively avoiding the performance degradation problem caused by loose or damaged connection parts. The centrally arranged connecting column 42 on the lamination support 4 cleverly balances the load distribution of the transformer, improving the overall stability and durability. At the same time, the through hole 421 on the connecting column 42 and the corresponding first through hole 11 and second through hole 31 provide accurate guidance and positioning for subsequent electrical connection, ensuring smooth and efficient current transmission. Further, the first mounting clamps 111 and the second mounting clamps 311 respectively arranged on the two sides of the first through hole 11 and the second through hole 31 reflect the meticulous and thoughtful design. These clamp structures not only enhance the strength of the through hole edges, preventing deformation or damage caused by long-term stress, but also provide a convenient fixing means for quick and reliable electrical connection. They can tightly clamp wires or connectors, effectively preventing loosening, thereby ensuring the electrical performance stability and safety of the transformer during long-term operation.

[0037] One side of the first connecting platform 41 is provided with a first assembly positioning strip 413 for the assembly positioning of the first pole piece 5 and a first positioning buckle 414. One side of the second connecting platform 43 is provided with a second assembly positioning strip 433 for the assembly positioning of the second pole piece 6 and a second positioning buckle 434. The first positioning buckle 414 is used to cooperate with the second positioning buckle 434 for connecting the two adjacent lamination supports 4. In this embodiment, the first assembly positioning strip 413 and the first positioning buckle 414 on the first connecting platform 41 are designed to provide a reliable physical reference for the accurate assembly of the first pole piece 5. This design ensures the position accuracy of the pole piece during the stacking process, effectively avoiding the problems of electrical performance degradation or structural instability caused by assembly deviation. The first assembly positioning strip 413 as a direct guide simplifies the assembly process, improves production efficiency, and at the same time ensures the overall consistency of the lamination structure. Secondly, the second assembly positioning strip 433 and the second positioning buckle 434 on the second connecting platform 43 also play an accurate assembly positioning role for the second pole piece 6. This symmetrical design not only maintains the balance of the lamination structure, but also further enhances the structural strength and electrical insulation performance of the laminated transformer. Through the accurate guidance of the second assembly positioning strip 433, the second pole piece 6 can accurately and accurately be stacked with the first pole piece 5 to form a tight and stable electrical connection. What is particularly important is that the first positioning buckle 414 and the second positioning buckle 434 are cleverly matched to realize the seamless connection of the two adjacent lamination supports 4. This connection method not only simplifies the assembly process between the lamination supports 4, but also significantly improves the overall stability and reliability of the laminated transformer. Through the locking effect of the buckle structure, it effectively prevents the loosening of the lamination supports 4 under the action of external factors such as vibration or temperature change, ensuring the stability and safety of the long-term operation of the transformer.

[0038] One side of the first pole piece 5 is provided with a first positioning step 52, which is used to cooperate with the first assembly positioning strip 413 to position the first pole piece 5 on the first connecting table 41. Specifically, one side of the second pole piece 6 is provided with a second positioning step 62, which is used to cooperate with the second assembly positioning strip 433 to position the second pole piece 6 on the second connecting table 43. In this embodiment, from the perspective of assembly efficiency, the cooperation of the positioning step and the assembly positioning strip greatly simplifies the assembly process. In previous designs, the installation of pole pieces often relies on manual adjustment or complex mechanical positioning devices, which not only consumes time and effort, but also easily introduces assembly errors. After adopting this design, the pole pieces can be quickly and accurately positioned at the predetermined position without the need for additional adjustment steps, thereby significantly improving production efficiency. Secondly, from the perspective of structural stability, the close cooperation of the positioning step and the assembly positioning strip effectively prevents the displacement or loosening of the pole pieces during the operation of the transformer. In the laminated transformer, the stable arrangement of the pole pieces is a key factor to ensure the current transmission efficiency and the performance of the transformer. Through this design, the pole pieces are firmly locked on the connecting table, and even under long-term high-load operation, the stability and reliability of the structure can be maintained. In addition, this design also improves the overall performance of the transformer. Since the pole pieces can be accurately positioned, the consistency of the electrical gap and the insulation performance between each layer of laminations is ensured, thereby reducing the risk of electrical failure caused by assembly errors. At the same time, accurate assembly also helps to optimize the electromagnetic field distribution of the transformer and improve the energy conversion efficiency.

[0039] One end of the first pole piece 5 is provided with a first positioning clamping groove 53 for cooperating with a first positioning buckle 414 to position the direction of the first pole piece 5; one end of the second pole piece 6 is provided with a second positioning clamping groove 63 for cooperating with a second positioning buckle 434 to position the direction of the second pole piece 6. In this embodiment, from the perspective of positioning accuracy, the close cooperation of the first positioning step 52 and the first assembly positioning strip 413, and the second positioning step 62 and the second assembly positioning strip 433, ensures the accurate positioning of the first pole piece 5 and the second pole piece 6 on the corresponding connecting table. This high-precision positioning method not only improves the overall assembly precision of the laminated transformer, but also effectively avoids the decline in electrical performance or safety hazards caused by pole piece misalignment. Secondly, the cooperation of the positioning step and the assembly positioning strip also significantly enhances the stability of the pole piece on the connecting table. During the operation of the transformer, the pole piece may be affected by various external forces, such as electromagnetic force, thermal stress caused by temperature changes, etc. The design of the positioning step effectively resists these external disturbances by increasing the contact area and friction between the pole piece and the connecting table, ensuring the stability and reliability of the pole piece during long-term operation. In addition, this technology also simplifies the assembly process of the laminated transformer. Traditional positioning methods may rely on complex tooling fixtures or manual adjustments, while the cooperation of the positioning step and the assembly positioning strip realizes automatic or semi-automatic positioning, greatly improving production efficiency. At the same time, due to accurate and stable positioning, the workload of subsequent debugging and maintenance is also reduced, and the life cycle cost of the transformer is reduced.

[0040] The first cover plate 1 is provided with a first cooperating buckle 12 for cooperating with the first positioning buckle 414. The second cover plate 3 is provided with a second cooperating buckle 32 for cooperating with the second positioning buckle 434. In this embodiment, through the buckle cooperation mechanism, the first cover plate 1 and the second cover plate 3 can be firmly fixed on the transformer body, effectively preventing loosening or displacement caused by vibration or external force, thereby ensuring the stability and reliability of the transformer during long-term operation. Secondly, this buckle cooperation method simplifies the assembly and disassembly process of the transformer. Compared with the traditional bolt fastening or welding method, buckle connection not only operates simply and quickly, but also does not require additional tool assistance, greatly improving production efficiency.

[0041] The first connecting platform 41 is provided with first assembly buckles 415 on both sides, and the second connecting platform 43 is provided with second assembly clamping grooves 435 on both sides, and the first connecting platform 41 is clamped with the second connecting platform 43 through the first assembly buckles 415 and the second assembly clamping grooves 435. In this embodiment, the clamping structure greatly simplifies the assembly process of the laminated transformer. The traditional connection method often needs complex bolt fixing or welding operation, which not only consumes time and effort, but also increases the operation difficulty and cost. The design of the assembly buckle and the clamping groove makes the butt joint between the connecting platforms quick and simple, and the fixing can be completed by simply embedding the buckle into the clamping groove, which significantly improves the production efficiency. Secondly, in terms of structural stability, this clamping structure ensures the close fit and firm connection between the connecting platforms through precise size design and material selection. During the operation of the transformer, even if it faces challenges such as vibration and temperature change, it can effectively prevent the connection from loosening or failing, thereby ensuring the overall stability and long-term reliability of the transformer. In addition, this design also embodies good maintainability and flexibility. When it is necessary to maintain or replace parts of the transformer, the buckle and the clamping groove can be easily separated to achieve quick disassembly, reducing the maintenance difficulty and time cost. At the same time, this modular design also provides more possibilities for upgrading and modification of the transformer, facilitating the adjustment of component configuration according to actual needs.

[0042] The first cover plate 1 is provided with first assembly clamping grooves 13 on both sides, which are used to be buckled on the first assembly buckles 415; and the second cover plate 3 is provided with second assembly buckles 33 on both sides, and the second assembly clamping grooves 435 are used to be buckled on the second assembly buckles 33. In this embodiment, the first assembly clamping grooves 13 provided on both sides of the first cover plate 1 are matched with the corresponding first assembly buckles 415, which ensures that the cover plate can be accurately positioned and fixed on the transformer body, effectively avoiding performance degradation or safety hazards caused by assembly deviation. At the same time, the close buckling of the clamping groove and the buckle reduces the gap in the assembly process, improves the overall sealing and electromagnetic shielding effect, which is of great significance to suppress electromagnetic interference and protect the internal components of the transformer from the influence of the external environment. Secondly, the second assembly buckles 33 on the second cover plate 3 are combined with the corresponding second assembly clamping grooves 435, which further strengthens the hierarchical structure and modular design of the transformer. This structure not only facilitates the disassembly and assembly of the transformer during production, improves the production efficiency, but also helps the maintenance and upgrading in the later stage, reduces the maintenance cost. In addition, by optimizing the shape and material of the buckle and the clamping groove, more efficient heat dissipation can be achieved to ensure the stability and durability of the transformer under high load operation.

[0043] The first wiring part 412 is provided with a first wiring clamping groove 416, and the second wiring part 432 is provided with a second wiring clamping groove 436, and the first wiring clamping groove 416 is opposite to the second wiring clamping groove 436. The first cover plate 1 is provided with a first threading groove 14, and the first threading groove 14 is opposite to the first wiring clamping groove 416; the second cover plate 3 is provided with a second threading groove 34, and the second threading groove 34 is opposite to the second wiring clamping groove 436. In the embodiment, the opposite arrangement of the first wiring clamping groove 416 and the second wiring clamping groove 436 not only ensures the accuracy and stability of electrical connection, but also effectively simplifies the wiring process and improves the installation efficiency. Further, the opposite arrangement of the first threading groove 14 and the first wiring clamping groove 416 on the first cover plate 1, and the corresponding arrangement of the second threading groove 34 and the second wiring clamping groove 436 on the second cover plate 3, constitute an efficient and orderly cable management system. This design allows the cable to pass through the fixed structure in a more intuitive and standardized manner, avoiding the disorder of the cable and reducing the safety hazards caused by the interlacing of the cable, and also facilitating subsequent maintenance inspection and troubleshooting. In practical application, this design significantly improves the overall reliability and safety of the laminated transformer. On the one hand, the precise cooperation of the wiring clamping groove and the threading groove effectively prevents the cable from loosening or falling off, ensuring the durability and stability of the electrical connection; on the other hand, the neat cable layout reduces the possibility of electromagnetic interference, improving the running efficiency and performance stability of the transformer.

[0044] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A laminated transformer characterized by: The application relates to a laminated core, which comprises a first cover plate, a laminated core assembly and a second cover plate arranged in sequence, the laminated core assembly is composed of a plurality of laminated core supports arranged in sequence, the laminated core supports comprise a first connecting table, a connecting column and a second connecting table arranged in sequence, two adjacent laminated core supports are connected through the first connecting table and the second connecting table, the first cover plate is connected with the first connecting table of the first laminated core support, and the second cover plate is connected with the second connecting table of the last laminated core support; a first fixing groove is arranged on the first connecting table, a second fixing groove is arranged on the second connecting table, a first pole piece is arranged on the first fixing groove, and a second pole piece is arranged on the second fixing groove; a first wiring part is arranged on one side of the first connecting table, a second wiring part is arranged on one side of the second connecting table, the first pole piece is provided with a first extension part, one end of the first extension part extends to the first wiring part, the second pole piece is provided with a second extension part, and one end of the second extension part extends to the second wiring part.

2. The laminated transformer of claim 1, wherein: The first connecting table, the connecting column and the second connecting table are integrally injection molded; the connecting column is arranged in the middle of the laminated core support, the connecting column is provided with a through hole, the first cover plate is provided with a first through hole, the second cover plate is provided with a second through hole, and the first through hole and the second through hole are respectively opposite to two ends of the through hole.

3. The laminated transformer of claim 2, wherein: First mounting clamps are arranged on two sides of the first through hole, and second mounting clamps are arranged on two sides of the second through hole.

4. The laminated transformer of claim 1, wherein: One side of the first connecting table is provided with a first assembly positioning strip and a first positioning buckle, and the first assembly positioning strip is used for assembly positioning of the first pole piece; One side of the second connecting table is provided with a second assembly positioning strip and a second positioning buckle, and the second assembly positioning strip is used for assembly positioning of the second pole piece; The first positioning buckle is used for matching the second positioning buckle to connect two adjacent laminated core supports.

5. The laminated transformer of claim 4, wherein: One side of the first pole piece is provided with a first positioning step, and the first positioning step is used for matching the first assembly positioning strip to position the first pole piece on the first connecting table; One side of the second pole piece is provided with a second positioning step, and the second positioning step is used for matching the second assembly positioning strip to position the second pole piece on the second connecting table.

6. The laminated transformer of claim 4, wherein: One end of the first pole piece is provided with a first positioning buckle groove, and the first positioning buckle groove is used for matching the first positioning buckle to position the direction of the first pole piece; one end of the second pole piece is provided with a second positioning buckle groove, and the second positioning buckle groove is used for matching the second positioning buckle to position the direction of the second pole piece.

7. The laminated transformer of claim 4, wherein: The first cover plate is provided with a first matching buckle, and the first matching buckle is used for matching the first positioning buckle; The second cover plate is provided with a second matching buckle, and the second matching buckle is used for matching the second positioning buckle.

8. The laminated transformer of claim 1, wherein: Two sides of the first connecting table are provided with first assembly buckles, two sides of the second connecting table are provided with second assembly buckle grooves, and the first connecting table is clamped with the second connecting table through the first assembly buckles and the second assembly buckle grooves.

9. The laminated transformer of claim 8, wherein: The first cover plate is provided with first assembly clamping grooves for buckling on first assembly buckles; the second cover plate is provided with second assembly buckles for buckling on second assembly clamping grooves.

10. The laminated transformer of claim 1, wherein: The first wiring part is provided with first wiring clamping grooves, and the second wiring part is provided with second wiring clamping grooves, which are opposite to each other. The first cover plate is provided with first threading grooves opposite to the first wiring clamping grooves; and the second cover plate is provided with second threading grooves opposite to the second wiring clamping grooves.

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