A fixing structure for a transformer cable

Abstract

The utility model discloses a kind of fixing structure for transformer cable, including transformer and fixed plate, four through holes are set up around the fixed plate, four cable lines of the transformer respectively pass through four described through holes, the cable line of the transformer is connected with the through hole;Through fixed plate through hole, cable line is accurately positioned, avoid cable line to shake or dislocation in assembly process, facilitate subsequent welding operation, after cable line is fixed, cable line is stable when welding, reduce the occurrence of false welding, virtual welding, improve welding quality and product pass rate, assembly process is more convenient and fast, reduce rework frequency, reduce artificial operation difficulty and cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of transformer and PCB board connection, specifically a fixing structure for transformer cables. Background Technology

[0002] The connection between a transformer and a PCB board refers to the process of electrically connecting and mechanically fixing the electrodes of the transformer to the circuits on the printed circuit board. This connection method is widely used in various electronic devices to realize the conversion of electrical energy and the integration of circuits.

[0003] The common connection between transformer cables and PCB circuit boards is to solder the transformer cables to the PCB circuit board. However, due to the large diameter and rigidity of transformer cables, which make them difficult to bend, it is very difficult to accurately solder the transformer cables to the PCB circuit board when space is limited. This often results in false soldering or poor soldering, leading to low product qualification rate and high labor costs. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing structure for transformer cables to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fixing structure for transformer cables includes a transformer and a fixing plate. The fixing plate has four through holes around its perimeter. The four cables of the transformer pass through the four through holes respectively, and the cables of the transformer are connected to the through holes.

[0007] In a further technical solution, the fixing plate includes a small PCB board, which is welded to the cable of the transformer.

[0008] In a further technical solution, the fixing plate includes a metal plate, the transformer cable is provided with an insulating layer, and the outer end of the insulating layer is connected to the wall of the through hole of the metal plate.

[0009] In a further technical solution, an insulating sleeve is fixedly installed on the inner wall of the through hole of the metal plate, and a pressure ring is installed on the outer layer of the insulating sleeve. The pressure ring is used to connect the insulating sleeve to the cable of the transformer.

[0010] In a further technical solution, a power board and a PCB circuit board are respectively provided on both sides of the transformer. One side of the transformer is connected to the power board, and the cable on the other side of the transformer passes through the through hole and is connected to the PCB circuit board. The power board and the PCB circuit board are connected by several studs.

[0011] In a further technical solution, a heat sink is fixedly installed on the power board, and the heat sink is connected to the metal plate through several heat conduction lines.

[0012] In a further technical solution, a PCB sub-board is fixedly mounted on the power board, and the PCB sub-board is connected to the PCB circuit board via wires.

[0013] In a further technical solution, the PCB sub-board and the heat sink are connected by a heat-conducting wire.

[0014] The beneficial effects of this utility model are:

[0015] In manufacturing this utility model, four cables are led out from the transformer. The cable lengths are pre-cut according to assembly requirements, and the ends of the cables are stripped to expose a suitable amount of conductor for subsequent connection. The external insulation of the other cables remains intact to ensure insulation safety. After selecting a fixing plate, four through holes are designed according to the transformer cable layout, with the hole diameter slightly larger than the cable sheath diameter. Then, the four transformer cables are passed through the corresponding four through holes on the fixing plate. Next, the operator adjusts the position of the cables to keep them neatly arranged on the fixing plate, avoiding tangling or uneven stress. The through holes in the fixing plate accurately position the cable, preventing it from shaking or misaligning during assembly and facilitating subsequent welding operations. With the cable secured, it remains stable during welding, reducing the occurrence of false or incomplete welds, improving welding quality and product qualification rate. The assembly process is simpler and faster, reducing rework and lowering manual operation difficulty and costs. Furthermore, the fixing plate provides mechanical support for the cable, preventing breakage or loosening due to vibration or pulling, extending product lifespan. A well-designed fixing plate and through-hole layout ensure neat cable arrangement, saving space and adapting to space-constrained assembly environments.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 : Structural diagram of Embodiment 1 of this utility model.

[0018] Figure 2 : Front view of Embodiment 1 of this utility model.

[0019] Figure 3 : Cross-sectional view of Embodiment 1 of this utility model.

[0020] Figure 4 The structural diagram of the transformer, fixing plate, power supply board, PCB circuit board and PCB sub-board of this utility model.

[0021] Figure 5: A schematic diagram showing the location of the fixing plate of this utility model.

[0022] Figure 6 : Structural diagram and partial enlarged view of Embodiment 2 of this utility model.

[0023] Reference numerals: 1. Transformer; 11. Cable; 21. PCB board; 22. Metal plate; 3. Through hole; 4. Power board; 5. PCB circuit board; 6. Stud; 7. PCB sub-board; 8. Insulating sleeve; 9. Pressure ring; 10. Heat sink; 12. Heat-conducting wire Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] The connection between the common transformer 1 cable 11 and the PCB circuit board 5 is usually achieved by soldering. However, because the transformer 1 cable 11 has a large diameter and is relatively rigid, it is not easy to bend. In situations with limited space, it is very difficult to accurately solder the transformer 1 cable 11, which is prone to false soldering or poor soldering, resulting in low product qualification rate and high labor costs.

[0026] Please refer to Figure 1-6 ;

[0027] Example 1:

[0028] This embodiment discloses a fixing structure for the cable 11 of a transformer 1, including a transformer 1 and a fixing plate. The fixing plate has four through holes 3 around its perimeter. The four cables 11 of the transformer 1 pass through the four through holes 3 respectively, and the cables 11 of the transformer 1 are connected to the through holes 3.

[0029] Specifically, during the manufacturing of transformer 1, four cables 11 are led out from transformer 1. The length of the cables 11 is pre-cut according to assembly requirements, and the ends of the cables 11 are stripped to expose an appropriate amount of wire for subsequent connection. The external insulation layer of the other cables 11 remains intact to ensure insulation safety. After selecting a fixing plate, four through holes 3 are designed according to the layout of the cables 11 in transformer 1. The diameter of the holes is slightly larger than the diameter of the cable sheaths of the cables 11. Then, the four cables 11 of transformer 1 are passed through the four corresponding through holes 3 in the fixing plate. The next step is for the operator to adjust the position of the cables 11 to keep them neatly arranged on the fixing plate, avoiding tangling or uneven stress. The cable 11 is accurately positioned through the through holes 3 of the fixing plate, preventing it from shaking or misaligning during assembly and facilitating subsequent welding operations. With the cable 11 fixed, it is stable during welding, reducing the occurrence of false welds and incomplete welds, improving welding quality and product qualification rate. The assembly process is simpler and faster, reducing rework and lowering the difficulty and cost of manual operation. In addition, the fixing plate provides mechanical support for the cable 11, preventing it from breaking or loosening due to vibration or pulling, thus extending the product's service life. Through the reasonable design of the fixing plate and through hole 3 layout, the cable 11 is arranged neatly, saving space and adapting to assembly environments with limited space.

[0030] Furthermore, the fixing plate includes a small PCB board 21, which is welded to the cable 11 of the transformer 1. In this embodiment, the fixing plate uses a small PCB board 21, and the cable 11 of the transformer 1 is directly welded to the small PCB board 21, which realizes the stable fixing and precise positioning of the cable 11, significantly improves the welding quality, reduces false soldering and incomplete soldering, improves the product qualification rate, simplifies the assembly process, reduces labor costs, and enhances the mechanical strength and electrical reliability of the overall connection.

[0031] In this embodiment, a power board 4 and a PCB circuit board 5 are respectively provided on both sides of the transformer 1. One side of the transformer 1 is connected to the power board 4, and the cable 11 on the other side of the transformer 1 passes through the through hole 3 and is connected to the PCB circuit board 5. The power board 4 and the PCB circuit board 5 are connected by several studs 6. Furthermore, a PCB sub-board 7 is fixedly provided on the power board 4, and the PCB sub-board 7 is connected to the PCB circuit board 5 by wires.

[0032] More specifically, a power board 4 and a PCB circuit board 5 are respectively installed on both sides of the transformer 1. One side of the transformer 1 is directly connected to the power board 4, and the cable 11 on the other side passes through the through hole 3 on the fixed plate to achieve electrical connection with the PCB circuit board 5. The power board 4 and the PCB circuit board 5 are firmly connected by several studs 6 to ensure the mechanical stability of the overall structure. In addition, a PCB sub-board 7 is fixedly installed on the power board 4. The PCB sub-board 7 is connected to the PCB circuit board 5 through wires to realize signal or power transmission between the PCB sub-board 7 and the PCB circuit board 5, ensuring the functional integration and reliable operation of the system. By rationally arranging the transformer 1, power board 4, and PCB circuit board 5, and combining the studs 6 to achieve a stable mechanical connection, and completing the electrical interconnection of multiple boards through the cable 11 and wires, the assembly accuracy and overall stability of the system are effectively improved. At the same time, the setting of the PCB sub-board 7 enriches the circuit function expandability, simplifies wiring, reduces the risk of electrical interference, and improves the reliability and maintenance convenience of the product.

[0033] Example 2

[0034] The structure of this embodiment is mostly the same as that of embodiment 1.

[0035] Unlike the structure of Example 1,

[0036] In this embodiment, the fixing plate includes a metal plate 22. The cable 11 of the transformer 1 is provided with an insulating layer to prevent short circuit caused by conductivity between the metal plate 22 and the cable 11. The outer end of the insulating layer is connected to the hole wall of the through hole 3 of the metal plate 22. Further, an insulating sleeve 8 is fixedly provided on the inner wall of the through hole 3 of the metal plate 22. The insulating sleeve 8 can be fixedly connected to the inner wall of the through hole 3 through various connection methods. This embodiment does not limit this. Pressure rings 9 are provided on both the upper and lower ends of the outer layer of the insulating sleeve 8. The pressure rings 9 are used to connect the insulating sleeve 8 to the cable 11 of the transformer 1. First, the cable 11 is passed through the insulating sleeve 8, and then the insulating sleeve 8 is locked by the pressure rings 9, so that the insulating sleeve 8 is stably connected to the insulating layer, thereby connecting the insulating tube to the metal plate 22 together.

[0037] More specifically, the first step involves the operator threading the cable 11 of transformer 1 through the through-hole 3 on the metal plate 22 and through the insulating sleeve 8 inside. A pressure ring 9 is used to tightly fit the insulation layer of the cable 11 against the inner wall of the insulating sleeve 8, ensuring insulation protection. The second step involves using pressure rings 9 installed at both ends of the insulating sleeve 8 to securely lock the insulating sleeve 8 onto the cable 11, achieving a stable connection between the insulating sleeve 8 and the cable 11. The third step involves the insulating sleeve 8 being fixedly connected to the inner wall of the through-hole 3 on the metal plate 22, thus firmly and safely fixing the cable 11 onto the metal plate 22. To prevent cable 11 from loosening or shifting and to ensure the mechanical and electrical safety of the overall structure, an insulating sleeve 8 is installed inside the through hole 3 of the metal plate 22 and a pressure ring 9 is used to lock the insulation layer of cable 11. This achieves reliable insulation and stable fixation between cable 11 and metal plate 22, effectively avoiding the risk of short circuit between metal plate 22 and the conductor of cable 11. At the same time, this structure enhances the mechanical support capacity of cable 11, preventing damage or loosening of cable 11 due to vibration or tension, significantly improving the safety and service life of the product. Moreover, the installation process is simple and improves assembly efficiency.

[0038] Furthermore, a heat sink 10 is fixedly installed on the power board 4. The heat sink 10 is connected to the metal plate 22 through several heat conduction lines. Through the connection between the metal plate 22 and the heat sink 10, the heat generated by the metal plate 22 or the heat generated by the transformer 1 and PCB circuit board 5 around the metal plate 22 is quickly conducted to the heat sink 10 to improve heat dissipation performance and further improve the performance of the product.

[0039] In this embodiment, the PCB sub-board 7 is connected to the heat sink 10 via a heat-conducting wire 12 to further improve the heat dissipation performance of the PCB circuit board 5.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixing structure for transformer cables, characterized in that, The device includes a transformer (1) and a fixing plate. The fixing plate has four through holes (3) around its perimeter. The four cables (11) of the transformer (1) pass through the four through holes (3) respectively, and the cables (11) of the transformer (1) are connected to the through holes (3).

2. The fixing structure for transformer cables according to claim 1, characterized in that, The fixing plate includes a small PCB board (21), which is welded to the cable (11) of the transformer (1).

3. The fixing structure for transformer cables according to claim 1, characterized in that, The fixing plate includes a metal plate (22), and the cable (11) of the transformer (1) is provided with an insulating layer. The outer end of the insulating layer is connected to the hole wall of the through hole (3) of the metal plate (22).

4. The fixing structure for transformer cables according to claim 3, characterized in that, An insulating sleeve (8) is fixedly installed on the inner wall of the through hole (3) of the metal plate (22). A pressure ring (9) is provided on the outer layer of the insulating sleeve (8). The pressure ring (9) is used to connect the insulating sleeve (8) to the cable (11) of the transformer (1).

5. A fixing structure for transformer cables according to claim 4, characterized in that, A power board (4) and a PCB circuit board (5) are respectively provided on both sides of the transformer (1). One side of the transformer (1) is connected to the power board (4), and the cable (11) on the other side of the transformer (1) passes through the through hole (3) and is connected to the PCB circuit board (5). The power board (4) and the PCB circuit board (5) are connected by several studs (6).

6. A fixing structure for transformer cables according to claim 5, characterized in that, A heat sink (10) is fixedly installed on the power board (4), and the heat sink (10) is connected to the metal plate (22) through several heat conduction lines.

7. A fixing structure for transformer cables according to claim 6, characterized in that, A PCB sub-board (7) is fixedly installed on the power board (4), and the PCB sub-board (7) is connected to the PCB circuit board (5) by wires.

8. A fixing structure for transformer cables according to claim 7, characterized in that, The PCB sub-board (7) is connected to the heat sink (10) via a heat-conducting wire (12).

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