Laminated transformer

Abstract

The invention 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 sequentially arranged, the lamination assembly is composed of a plurality of lamination supports which are sequentially stacked, and each lamination support comprises a first connecting table, a connecting column and a second connecting table which are sequentially arranged. 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 invention, the first cover plate, the lamination assembly and the second cover plate are arranged in sequence to form an integral body with a compact structure and distinct layers. 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 invention relates to the technical field of electronic components, and in particular to a laminated transformer. Background Art

[0002] A power adapter, also known as an external power supply, is a small portable electronic device and a power supply voltage conversion device for electronic appliances. It is widely used in small electronic devices such as mobile phones, LCD screens, and laptops. It is also commonly found in security cameras, TV set-top boxes, wireless routers, light bars, massagers, and other devices. The basic working principle of a power adapter is to convert AC input into DC output. It is usually composed of components such as a housing, transformer, inductor, capacitor, control IC, and PCB board.

[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 iron core. By adjusting the turns ratio of the primary and secondary coils, the voltage can be increased or decreased to meet the voltage requirements of different devices.

[0004] Due to structural design reasons, the existing transformers take up a large space during use and affect stability. Therefore, it is necessary to make new improvements to the existing transformer structure. Summary of the invention

[0005] To solve the above problems, the present invention forms a compact and well-organized whole by sequentially arranging a first cover plate, a lamination assembly, and a second cover plate. The sequential stacking of multiple lamination brackets not only optimizes space utilization, but also reduces the floor space, making the transformer more adaptable to the requirements of modern power systems for miniaturization and lightweight equipment while maintaining high performance.

[0006] The technical solution adopted by the present invention is: a laminated transformer, comprising a first cover plate, a laminate assembly and a second cover plate arranged in sequence, the laminate assembly is composed of a plurality of laminate brackets, the plurality of laminate brackets are stacked in sequence, the laminate bracket comprises a first connecting platform, a connecting column and a second connecting platform arranged in sequence, two adjacent laminate brackets are connected to the second connecting platform through the first connecting platform, the first cover plate is connected to the first connecting platform of the first laminate bracket, and the second cover plate is connected to the last second connecting platform; the first connecting platform is provided with a first fixing groove, the second connecting platform is provided with a second fixing groove, the first fixing groove is provided with a first pole piece, and the second fixing groove is provided with a second pole piece; a first wiring portion is provided on one side of the first connecting platform, a second wiring portion is provided on one side of the second connecting platform, the first pole piece is provided with a first extension portion, one end of the first extension portion extends to the first wiring portion, the second pole piece is provided with a second extension portion, one end of the second extension portion extends to the second wiring portion.

[0007] A further improvement to the above scheme is that the first connecting platform and the connecting column and the second connecting platform are integrally injection molded; the connecting column is centrally arranged on the stack bracket, 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 the two ends of the through hole.

[0008] A further improvement to the above solution is that first mounting clamps are provided on both sides of the first through hole, and second mounting clamps are provided on both sides of the second through hole.

[0009] A further improvement to the above solution is that a first assembly positioning strip and a first positioning buckle are provided on one side of the first connecting platform, and the first assembly positioning strip is used for assembly positioning of the first pole piece.

[0010] A further improvement to the above solution is that a second assembly positioning strip and a second positioning buckle are provided on one side of the second connecting platform, and the second assembly positioning strip is used for assembly positioning of the second pole piece.

[0011] A further improvement to the above solution is that the first positioning buckle is used to cooperate with the second positioning buckle to connect two adjacent stack brackets.

[0012] A further improvement to the above solution is that a first positioning step is provided on one side of the first pole piece, and the first positioning step is used to cooperate with the first assembly positioning strip to position the first pole piece on the first connecting platform.

[0013] A further improvement to the above solution is that a second positioning step is provided on one side of the second pole piece, and the second positioning step is used to cooperate with the second assembly positioning strip to position the second pole piece on the second connecting platform.

[0014] A further improvement to the above scheme is that a first positioning slot is provided at one end of the first pole piece, and the first positioning slot is used to cooperate with the first positioning buckle to position the direction of the first pole piece; a second positioning slot is provided at one end of the second pole piece, and the second positioning slot is used to cooperate with the second positioning buckle to position the direction of the second pole piece.

[0015] A further improvement to the above solution is that the first cover plate is provided with a first matching buckle, and the first matching buckle is used to match the first positioning buckle.

[0016] A further improvement to the above solution is that the second cover plate is provided with a second matching buckle, and the second matching buckle is used to match the second positioning buckle.

[0017] A further improvement to the above solution is that first assembly buckles are provided on both sides of the first connecting platform, second assembly slots are provided on both sides of the second connecting platform, and the first connecting platform is connected to the second connecting platform via the first assembly buckles and the second assembly slots.

[0018] A further improvement to the above scheme is that first assembly slots are provided on both sides of the first cover plate, and the first assembly slots are used to buckle onto the first assembly buckles; second assembly buckles are provided on both sides of the second cover plate, and the second assembly slots are used to buckle onto the second assembly buckles.

[0019] A further improvement to the above solution is that the first wiring portion is provided with a first wiring slot, the second wiring portion is provided with a second wiring slot, and the first wiring slot is opposite to the second wiring slot.

[0020] A further improvement to the above solution is that the first cover plate is provided with a first wire threading groove, which is opposite to the first wiring card slot; the second cover plate is provided with a second wire threading groove, which is opposite to the second wiring card slot.

[0021] The beneficial effects of the present invention are: Compared with the existing transformer, the present invention forms a compact and well-organized whole by sequentially arranging the first cover plate, the lamination assembly and the second cover plate. The sequential stacking of multiple lamination brackets not only optimizes the space utilization, but also reduces the floor space, so that the transformer can better adapt to the requirements of modern power systems for miniaturization and lightweight equipment while maintaining high performance. Secondly, the unique design of the lamination bracket enhances the stability and reliability of the transformer. Each lamination bracket is sequentially arranged by the first connecting platform, the connecting column and the second connecting platform. This design not only ensures the stable stacking of the lamination assembly, but also effectively disperses the stress and vibration generated by the transformer during operation through the supporting effect of the connecting column, thereby extending the service life of the equipment. The accuracy and stability of the electrical connection are achieved by respectively arranging the first fixing groove and the second fixing groove on the first connecting platform and the second connecting platform, and installing the first pole piece and the second pole piece thereon. The arrangement of the first pole piece and the second pole piece not only ensures the effective transmission of current and voltage in the transformer, but also guides the current to the first wiring part and the second wiring part respectively through the first extension part and the second extension part thereon, thereby achieving convenient connection with the external circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the laminated transformer of the present invention; Figure 2 for Figure 1 A schematic side view of a medium laminated transformer; Figure 3 for Figure 1 Exploded diagram of a medium-laminated transformer; Figure 4 for Figure 1 An exploded schematic diagram of part of the structure of the laminated transformer; Figure 5 for Figure 1 Exploded diagram of part of the structure of the laminated transformer.

[0023] Description of reference numerals: first cover plate 1, first through hole 11, first mounting clamp 111, first matching buckle 12, first assembly slot 13, first threading slot 14; The lamination assembly 2, the second cover plate 3, the second through hole 31, the second mounting clamp 311, the second matching buckle 32, the second assembly buckle 33, and the second threading groove 34; The stack bracket 4, the first connecting platform 41, the first fixing groove 411, the first wiring portion 412, the first assembly positioning strip 413, the first positioning buckle 414, the first assembly buckle 415, the first wiring slot 416, the connecting column 42, the through hole 421, the second connecting platform 43, the second fixing groove 431, the second wiring portion 432, the second assembly positioning strip 433, the second positioning buckle 434, the second assembly slot 435, and the second wiring slot 436; A first pole piece 5, a first extension portion 51, a first positioning step 52, and a first positioning slot 53; The second pole piece 6 , the second extending portion 61 , the second positioning step 62 , and the second positioning slot 63 . DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1~Figure 5As shown, in one embodiment of the present invention, a laminated transformer is involved, including a first cover plate 1, a laminate assembly 2 and a second cover plate 3 arranged in sequence, the laminate assembly 2 is composed of a plurality of laminate brackets 4, the plurality of laminate brackets 4 are stacked in sequence, the laminate brackets 4 include a first connecting platform 41, a connecting column 42 and a second connecting platform 43 arranged in sequence, two adjacent laminate brackets 4 are connected via a first connecting platform 41 and a second connecting platform 43, the first cover plate 1 is connected to the first connecting platform 41 of the first laminate bracket 4, the second cover plate 3 is connected to the last second connecting platform 43; the first connecting platform 41 is provided with a first fixing groove 411, the second connecting platform 43 is provided with a second fixing groove 431, the first fixing groove 411 is provided with a first pole piece 5, and the second fixing groove 431 is provided with a second pole piece 6; a first connection portion 412 is provided on one side of the first connecting platform 41, a second connection portion 432 is provided on one side of the second connecting platform 43, the first pole piece 5 is provided with a first extension portion 51, one end of the first extension portion 51 extends to the first connection portion 412, and the second pole piece 6 is provided with a second extension portion 61, one end of the second extension portion 61 extends to the second connection portion 432. In this embodiment, a compact structure and a clear hierarchy are formed by sequentially arranged first cover plate 1, lamination assembly 2 and second cover plate 3. The sequential stacking of multiple lamination brackets 4 not only optimizes space utilization, but also reduces the floor space, so that the transformer can better adapt to the requirements of modern power systems for miniaturization and lightweight equipment while maintaining high performance. Secondly, the unique design of the lamination bracket 4 enhances the stability and reliability of the transformer. Each stack support 4 is composed of a first connection platform 41, a connection column 42 and a second connection platform 43 arranged in sequence. This design not only ensures the stable stacking of the stack assembly 2, but also effectively disperses the stress and vibration generated by the transformer during operation through the supporting effect of the connection column 42, thereby extending the service life of the equipment. The accuracy and stability of the electrical connection are achieved by respectively setting the first fixing groove 411 and the second fixing groove 431 on the first connection platform 41 and the second connection platform 43, and installing the first pole piece 5 and the second pole piece 6 thereon. The arrangement of the first pole piece 5 and the second pole piece 6 not only ensures the effective transmission of current and voltage in the transformer, but also guides the current to the first wiring part 412 and the second wiring part 432 respectively through the first extension part 51 and the second extension part 61 thereon, thereby achieving a convenient connection with the external circuit.

[0027] The first connecting platform 41 and the connecting column 42 and the second connecting platform 43 are formed by integral injection molding; the connecting column 42 is centrally arranged on the lamination bracket 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, and the first through hole 11 and the second through hole 31 are respectively opposite to the two ends of the through hole 421. Specifically, a first mounting clamp 111 is provided on both sides of the first through hole 11, and a second mounting clamp 311 is provided on both sides of the second through hole 31. In this embodiment, the integral injection molding technology ensures seamless connection between the connecting platform and the connecting column 42, and effectively avoids the performance degradation problem caused by loose or damaged connection parts. The connecting column 42, which is centrally arranged on the lamination bracket 4, is designed to cleverly balance the load distribution of the transformer and improve the overall stability and durability. At the same time, the through hole 421 provided on the connecting column 42 and the corresponding first through hole 11 and second through hole 31 provide precise guidance and positioning for the subsequent electrical connection, ensuring smooth and efficient current transmission. Furthermore, the first mounting clamp 111 and the second mounting clamp 311 respectively provided on both sides of the first through hole 11 and the second through hole 31 further reflect the refinement and thoughtfulness of the design. These clamp structures not only enhance the strength of the edge of the perforation, prevent deformation or damage caused by long-term stress, but also provide a convenient fixing means for achieving fast and reliable electrical connection. They can tightly clamp the wire or connector to effectively prevent loosening, thereby ensuring the electrical performance stability and safety of the transformer during long-term operation.

[0028] One side of the first connection platform 41 is provided with a first assembly positioning strip 413 and a first positioning buckle 414, and the first assembly positioning strip 413 is used for assembly and positioning of the first pole piece 5. One side of the second connection platform 43 is provided with a second assembly positioning strip 433 and a second positioning buckle 434, and the second assembly positioning strip 433 is used for assembly and positioning of the second pole piece 6. The first positioning buckle 414 is used to cooperate with the second positioning buckle 434 to connect two adjacent stacking brackets 4. In this embodiment, the first assembly positioning strip 413 and the first positioning buckle 414 on the first connection platform 41 are designed to provide a reliable physical reference for the precise assembly of the first pole piece 5. This design ensures the position accuracy of the pole piece during the stacking process and effectively avoids the problem of electrical performance degradation or structural instability caused by assembly deviation. The first assembly positioning strip 413 acts as a direct guide, simplifies the assembly process, improves production efficiency, and ensures the overall consistency of the stacking structure. Secondly, the second assembly positioning strip 433 and the second positioning buckle 434 on the second connection platform 43 also play a role in the precise assembly and positioning of the second pole piece 6. This symmetrical design not only maintains the balance of the laminated structure, but also further enhances the structural strength and electrical insulation performance of the laminated transformer. Through the precise guidance of the second assembly positioning strip 433, the second pole piece 6 can accurately overlap with the first pole piece 5 to form a tight and stable electrical connection. More importantly, the ingenious cooperation between the first positioning buckle 414 and the second positioning buckle 434 realizes the seamless connection of two adjacent laminated brackets 4. This connection method not only simplifies the assembly process between the laminated brackets 4, but also significantly improves the overall stability and reliability of the laminated transformer. Through the locking action of the buckle structure, the laminated bracket 4 is effectively prevented from loosening under the influence of external factors such as vibration or temperature changes, ensuring the stability and safety of the long-term operation of the transformer.

[0029] A first positioning step 52 is provided on one side of the first pole piece 5, and the first positioning step 52 is used to cooperate with the first assembly positioning strip 413 to position the first pole piece 5 on the first connection platform 41. Specifically, a second positioning step 62 is provided on one side of the second pole piece 6, and the second positioning step 62 is used to cooperate with the second assembly positioning strip 433 to position the second pole piece 6 on the second connection platform 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 is not only time-consuming and labor-intensive, but also easy to introduce assembly errors. After adopting this design, the pole piece can be quickly and accurately positioned at a predetermined position without the need for additional adjustment steps, thereby significantly improving production efficiency. Secondly, from the perspective of structural stability, the close cooperation between the positioning step and the assembly positioning strip effectively prevents the displacement or loosening of the pole piece during the operation of the transformer. In a laminated transformer, the stable arrangement of the pole pieces is a key factor in ensuring current transmission efficiency and transformer performance. Through this design, the pole piece is firmly locked on the connection table, and the structural stability and reliability can be maintained even under long-term high-load operation. In addition, this design also improves the overall performance of the transformer. Since the pole piece can be accurately positioned, the consistency of the electrical gap and insulation performance between each layer of lamination is ensured, thereby reducing the risk of electrical failure caused by assembly errors. At the same time, precise assembly also helps to optimize the electromagnetic field distribution of the transformer and improve energy conversion efficiency.

[0030] One end of the first pole piece 5 is provided with a first positioning slot 53, which is used to cooperate with the 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 slot 63, which is used to cooperate with the 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 between 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 that the positions of the first pole piece 5 and the second pole piece 6 on their respective corresponding connection platforms are accurate. This high-precision positioning method not only improves the overall assembly accuracy of the laminated transformer, but also effectively avoids the degradation of electrical performance or safety hazards caused by the misalignment of the pole piece. Secondly, the cooperation between the positioning step and the assembly positioning strip also significantly enhances the stability of the pole piece on the connection platform. 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 the interference of these external forces by increasing the contact area and friction between the pole piece and the connection platform, ensuring the stability and reliability of the pole piece during long-term operation. In addition, this technology also simplifies the assembly process of laminated transformers. Traditional positioning methods may require reliance on complex fixtures or manual adjustments, while the combination of the positioning step and the assembly positioning strip realizes automated or semi-automated 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, reducing the full life cycle cost of the transformer.

[0031] The first cover plate 1 is provided with a first mating buckle 12, and the first mating buckle 12 is used to cooperate with the first positioning buckle 414. The second cover plate 3 is provided with a second mating buckle 32, and the second mating buckle 32 is used to cooperate with the second positioning buckle 434. In this embodiment, through the snap-fit ​​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 in long-term operation. Secondly, this snap-fit ​​method simplifies the assembly and disassembly process of the transformer. Compared with traditional bolt fastening or welding methods, the snap connection is not only easy and quick to operate, but also does not require additional tools to assist, which greatly improves production efficiency.

[0032] The first connection platform 41 is provided with a first assembly buckle 415 on both sides, and the second connection platform 43 is provided with a second assembly slot 435 on both sides. The first connection platform 41 is connected to the second connection platform 43 through the first assembly buckle 415 and the second assembly slot 435. In this embodiment, the clamping structure greatly simplifies the assembly process of the laminated transformer. Traditional connection methods often require complex bolt fixing or welding operations, which are not only time-consuming and labor-intensive, but also increase the difficulty and cost of operation. The design of assembly buckles and slots makes the docking between the connection platforms quick and easy, and the fixation can be completed by simply embedding the buckles into the slots, which significantly improves the production efficiency. Secondly, in terms of structural stability, this clamping structure ensures the close fit and firm connection between the connection platforms through precise size design and material selection. During the operation of the transformer, even in the face of challenges from external factors such as vibration and temperature changes, it can effectively prevent the connection from loosening or failing, thereby ensuring the overall stability and long-term reliability of the transformer. In addition, the design also reflects good maintainability and flexibility. When the transformer needs to be maintained or parts need to be replaced, it can be easily disassembled by separating the buckle and the slot, reducing the difficulty and time cost of maintenance. At the same time, this modular design also provides more possibilities for upgrading and modifying the transformer, making it easier to adjust the component configuration according to actual needs.

[0033] The first cover plate 1 is provided with a first assembly slot 13 on both sides, and the first assembly slot 13 is used to buckle on the first assembly buckle 415; the second cover plate 3 is provided with a second assembly buckle 33 on both sides, and the second assembly slot 435 is used to buckle on the second assembly buckle 33. In this embodiment, the first assembly slots 13 provided on both sides of the first cover plate 1 match the corresponding first assembly buckle 415. This design 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 tight buckling of the slot and the buckle reduces the gap during the assembly process, improves the overall sealing and electromagnetic shielding effect, and is of great significance for suppressing electromagnetic interference and protecting the internal components of the transformer from the influence of the external environment. Secondly, the second assembly buckle 33 on the second cover plate 3 is combined with the corresponding second assembly slot 435, which further strengthens the hierarchical structure and modular design of the transformer. This structure not only facilitates the decomposition and assembly of the transformer during the production process, improves production efficiency, but also helps with later maintenance and upgrading, and reduces maintenance costs. In addition, by optimizing the shape and material of the clips and slots, more efficient heat dissipation can be achieved, ensuring the stability and durability of the transformer under high-load operation.

[0034] The first wiring portion 412 is provided with a first wiring card slot 416, and the second wiring portion 432 is provided with a second wiring card slot 436, and the first wiring card slot 416 is opposite to the second wiring card slot 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 card slot 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 card slot 436. In this embodiment, the relative arrangement of the first wiring card slot 416 and the second wiring card slot 436 not only ensures the accuracy and stability of the electrical connection, but also effectively simplifies the wiring process and improves the installation efficiency. Furthermore, the relative layout of the first threading groove 14 and the first wiring card slot 416 on the first cover plate 1, and the corresponding configuration of the second threading groove 34 and the second wiring card slot 436 on the second cover plate 3, constitute an efficient and orderly cable management system. This design allows the cables to pass through the fixed structure in a more intuitive and standardized way, avoiding the disorder of cables and reducing the safety hazards caused by the interlacing of cables. It also facilitates subsequent maintenance inspections and troubleshooting. In practical applications, this design significantly improves the overall reliability and safety of the laminated transformer. On the one hand, the precise wiring card slots and wire troughs work together to effectively prevent the cables from loosening or falling off, ensuring the long-term stability of the electrical connection; on the other hand, the neat cable layout reduces the possibility of electromagnetic interference and improves the operating efficiency and performance stability of the transformer.

[0035] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A laminated transformer, characterized in that: It includes a first cover plate, a stacking assembly and a second cover plate which are arranged in sequence, the stacking assembly is composed of a plurality of stacking brackets, the plurality of stacking brackets are stacked in sequence, the stacking brackets include a first connecting platform, a connecting column and a second connecting platform which are arranged in sequence, two adjacent stacking brackets are connected with the second connecting platform via the first connecting platform, the first cover plate is connected with the first connecting platform of the first stacking bracket, the second cover plate is connected with the last second connecting platform; the first connecting platform is provided with a first fixing groove, the second connecting platform is provided with a second fixing groove, the first fixing groove is provided with a first pole piece, the second fixing groove is provided with a second pole piece; a first wiring portion is provided on one side of the first connecting platform, a second wiring portion is provided on one side of the second connecting platform, the first pole piece is provided with a first extension portion, one end of the first extension portion extends to the first wiring portion, the second pole piece is provided with a second extension portion, one end of the second extension portion extends to the second wiring portion.

2. The laminated transformer according to claim 1, characterized in that: The first connecting platform and the connecting column and the second connecting platform are integrally formed by injection molding; the connecting column is centrally arranged on the stack bracket, 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 the two ends of the through hole.

3. The laminated transformer according to claim 2, characterized in that: A first mounting clamp is disposed on both sides of the first through hole, and a second mounting clamp is disposed on both sides of the second through hole.

4. The laminated transformer according to claim 1, characterized in that: A first assembly positioning strip and a first positioning buckle are provided on one side of the first connecting platform, and the first assembly positioning strip is used for assembling and positioning the first pole piece; A second assembly positioning strip and a second positioning buckle are provided on one side of the second connection platform, and the second assembly positioning strip is used for assembling and positioning the second pole piece; The first positioning buckle is used to cooperate with the second positioning buckle to connect two adjacent stack brackets.

5. The laminated transformer according to claim 4, characterized in that: A first positioning step is provided on one side of the first pole piece, and the first positioning step is used to cooperate with the first assembly positioning strip to position the first pole piece on the first connecting platform; A second positioning step is provided on one side of the second pole piece, and the second positioning step is used to cooperate with the second assembly positioning strip to position the second pole piece on the second connecting platform.

6. The laminated transformer according to claim 4, characterized in that: A first positioning slot is provided at one end of the first pole piece, and the first positioning slot is used to cooperate with the first positioning buckle to position the direction of the first pole piece; a second positioning slot is provided at one end of the second pole piece, and the second positioning slot is used to cooperate with the second positioning buckle to position the direction of the second pole piece.

7. The laminated transformer according to claim 4, characterized in that: The first cover plate is provided with a first matching buckle, and the first matching buckle is used to match the first positioning buckle; The second cover plate is provided with a second matching buckle, and the second matching buckle is used to match the second positioning buckle.

8. The laminated transformer according to claim 1, characterized in that: The first connecting platform is provided with first assembly buckles on both sides, the second connecting platform is provided with second assembly slots on both sides, and the first connecting platform is connected with the second connecting platform through the first assembly buckles and the second assembly slots.

9. The laminated transformer according to claim 8, characterized in that: The first cover plate is provided with first assembly slots on both sides, and the first assembly slots are used to buckle on the first assembly buckles; the second cover plate is provided with second assembly buckles on both sides, and the second assembly slots are used to buckle on the second assembly buckles.

10. The laminated transformer according to claim 1, characterized in that: The first wiring portion is provided with a first wiring card slot, the second wiring portion is provided with a second wiring card slot, and the first wiring card slot is opposite to the second wiring card slot; The first cover plate is provided with a first wire threading groove, which is opposite to the first wiring card slot; the second cover plate is provided with a second wire threading groove, which is opposite to the second wiring card slot.

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