A packaging structure for preventing direct down-wiring of a transformer

Abstract

The utility model discloses a kind of packaging structures for preventing transformer straight down threading in the field of circuit board design, including the transformer being set on circuit board, the transformer is below being provided with forbidden wiring area, copper skin is provided in the forbidden wiring area.This utility model solves the problem that the signal line is set in the directly below transformer by the current designer, the utility model is below the transformer is provided with forbidden wiring area, avoid signal line or power line threading, to effectively reduce the adverse effects of electromagnetic interference and heat on circuit, if circuit is set in the directly below transformer area, then circuit board design rule check (DRC) system will issue error prompt, facilitate designer to check in time and correct design error, prevent designer from accidentally setting signal line in the directly below transformer, and copper skin has good electromagnetic shielding effect, can further block the electromagnetic field generated by transformer to leak outward, effectively isolate the electromagnetic interference generated by transformer.

Description

Technical Field

[0001] This utility model relates to the field of circuit board design technology, specifically to a packaging structure that prevents transformers from being directly driven through. Background Technology

[0002] Transformers are indispensable key components for voltage conversion in circuit boards. Their core function is to efficiently convert electrical energy of a specific voltage level into electrical energy of another voltage level, thereby meeting the different voltage requirements of different parts of the circuit.

[0003] During transformer operation, certain magnetic fields and electromagnetic interference are generated. Therefore, in practical applications, it is generally not recommended to run cables directly under the transformer (i.e., directly below the transformer). However, designers may inadvertently place signal or power lines directly under the transformer. If these cables are run directly under the transformer, they may be affected by electromagnetic interference, leading to signal distortion, reduced transmission efficiency, or even damage. Secondly, transformers may generate heat during operation. If cables are run directly under the transformer, these lines may be affected by the heat, increasing the risk of fire or short circuits. Furthermore, if the distance between the cable and the transformer is too close, there may be insufficient electrical clearance and creepage distance, further increasing safety hazards.

[0004] The above-mentioned defects urgently need to be addressed. Utility Model Content

[0005] To address the problem of existing designers placing signal lines directly below the transformer, this invention provides an encapsulation structure that prevents direct wiring through the transformer.

[0006] The technical solution of this utility model is as follows:

[0007] An encapsulation structure for preventing direct wiring through a transformer includes a transformer mounted on a circuit board, with a prohibited wiring area below the transformer and copper foil disposed within the prohibited wiring area.

[0008] According to the above-described scheme of this utility model, the shape of the prohibited wiring area is the same as the orthographic projection shape of the transformer.

[0009] According to the above-described scheme of this utility model, the area of ​​the prohibited wiring zone is the same as the projected area of ​​the transformer.

[0010] According to the above-described scheme of this utility model, the shape of the copper foil is the same as the shape of the prohibited wiring area.

[0011] According to the above-described scheme of this utility model, the area of ​​the copper foil is the same as the area of ​​the prohibited wiring zone.

[0012] According to the present invention based on the above scheme, a silkscreen frame is provided on the circuit board, and the edge of the silkscreen frame coincides with the edge of the prohibited wiring area.

[0013] According to the above-described scheme of this utility model, the width of the silkscreen frame is 6mil to 8mil.

[0014] The advantages of this utility model based on the above solution are as follows:

[0015] In the aforementioned encapsulation structure that prevents direct wiring under the transformer, a no-wiring zone is set below the transformer to prevent signal lines or power lines from passing through, thereby effectively reducing the adverse effects of electromagnetic interference and heat on the circuit. If the circuit is placed in the area directly under the transformer, the Circuit Board Design Rule Check (DRC) system will issue an error message, allowing designers to promptly review and correct design errors and preventing designers from accidentally placing signal lines directly under the transformer.

[0016] In addition, copper foil is installed in the prohibited wiring area. Copper foil has excellent electromagnetic shielding properties, which can further prevent the electromagnetic field generated by the transformer from leaking outward, effectively isolating the electromagnetic interference generated by the transformer and protecting the surrounding lines from being affected. At the same time, copper foil also plays a role in heat dissipation, absorbing and dispersing the heat generated by the transformer, reducing the risk of circuit aging caused by high temperatures, and enhancing the thermal stability of the circuit board. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a transformer mounted on a circuit board;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention.

[0020] In the diagram, 1 is the circuit board; 2 is the transformer; 3 is the no-wiring zone; 4 is the copper foil; and 5 is the silkscreen frame. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] During transformer operation, magnetic fields and electromagnetic interference are generated. Therefore, in design practice, it is generally recommended to avoid running cables directly under the transformer (i.e., directly below it). However, sometimes designers may overlook this and inadvertently place signal or power lines directly under the transformer. Once cables are run directly under the transformer, they are easily affected by electromagnetic fields, leading to signal distortion, reduced transmission efficiency, and even cable damage. Furthermore, the heat released by the transformer during operation cannot be ignored. If cables pass close to the transformer, they may be affected by thermal effects, increasing the risk of fire or short circuit due to overheating. Moreover, excessively close proximity between cables and the transformer may cause electrical clearances and creepage distances to fail to meet safety standards, further exacerbating potential safety hazards.

[0023] like Figure 1 As shown, to solve the above-mentioned technical problems, this utility model provides a packaging structure to prevent direct wiring under the transformer, including a transformer 2 mounted on a circuit board 1, with a no-wiring area 3 provided below the transformer 2 to prevent signal lines or power lines from passing through, thereby effectively reducing the adverse effects of electromagnetic interference and heat on the circuit. Furthermore, preventing wiring from passing under the transformer 2 helps maintain signal integrity, reduces signal distortion and attenuation, and improves the overall performance of the circuit board 1.

[0024] In this embodiment, if the wiring is located directly below transformer 2, the Design Rule Check (DRC) system of circuit board 1 will issue an error message, allowing the designer to promptly view and correct design errors and preventing accidental placement of signal lines directly below transformer 2. Simultaneously, the DRC error message enables designers to adjust the layout more quickly and accurately, reducing repeated modifications and debugging during the design process and improving design efficiency.

[0025] It should be noted that the Design Rule Check (DRC) system of the circuit board 1 is existing technology, and this utility model has not made any improvements to this part, so its principle and process will not be described in detail.

[0026] like Figure 2 As shown, in this embodiment, a copper foil 4 is provided within the prohibited wiring area 3. The copper foil 4 has a good electromagnetic shielding effect, which can further prevent the electromagnetic field generated by the transformer 2 from leaking outward, effectively isolate the electromagnetic interference generated by the transformer 2, protect the surrounding lines from being affected, improve the overall electromagnetic compatibility of the circuit board 1, and also ensure the purity of the signal and the stability of the transmission. At the same time, the copper foil 4 can also play a role in heat dissipation. By absorbing and dispersing the heat generated by the transformer 2, it reduces the risk of line aging caused by high temperature, enhances the thermal stability of the circuit board 1, and enables the circuit board 1 to maintain good performance and stability even under long-term operation.

[0027] like Figure 1 As shown, in this embodiment, the shape of the prohibited wiring area 3 is the same as the orthographic projection shape of the transformer 2, ensuring that the prohibited wiring area 3 can accurately cover the area below the transformer 2. This not only avoids unnecessary wiring under the transformer 2 but also optimizes the space utilization of the circuit board 1. By ensuring that the prohibited wiring area 3 is completely consistent with the orthographic projection shape of the transformer 2, the designer can maximize the use of space on the circuit board 1 and reduce space waste caused by improper wiring. In addition, the area of ​​the prohibited wiring area 3 is the same as the orthographic projection area of ​​the transformer 2, further enhancing the isolation effect against electromagnetic interference. Since the prohibited wiring area 3 completely covers the area below the transformer 2, it can form an effective electromagnetic barrier, preventing the electromagnetic field generated by the transformer 2 from leaking outward. This not only protects the surrounding lines from electromagnetic interference but also improves the overall electromagnetic compatibility of the circuit board 1.

[0028] like Figure 2 As shown, in this embodiment, the shape of the copper foil 4 is the same as the shape of the no-wiring area 3, ensuring that the copper foil 4 can be precisely fitted into the position of the no-wiring area 3. This not only simplifies the design process and reduces the possibility of design errors, but also ensures that the space on the circuit board 1 is used efficiently. Designers can ensure that the copper foil 4 completely covers the no-wiring area 3 without performing complex calculations and adjustments, thereby improving design efficiency and accuracy.

[0029] like Figure 2 As shown, in this embodiment, the area of ​​the copper foil 4 is the same as the area of ​​the no-wiring area 3. The copper foil 4 can form a complete electromagnetic shielding layer, effectively preventing external electromagnetic interference from entering the no-wiring area 3, and also preventing electromagnetic radiation that may be generated in the no-wiring area 3 from leaking outward. At the same time, as a material with high thermal conductivity, the copper foil 4 can effectively conduct away any heat that may be generated in the no-wiring area 3. When the copper foil 4 completely covers the no-wiring area 3, the copper foil 4 forms an effective heat dissipation channel, which helps to reduce the temperature of this area and improve the overall heat dissipation performance of the circuit board 1.

[0030] like Figure 2As shown, in this embodiment, a silkscreen frame 5 is provided on the circuit board 1. The edge of the silkscreen frame 5 coincides with the edge of the prohibited wiring area 3, providing precise identification and positioning for the production, assembly, and testing of the circuit board 1. The silkscreen frame 5 serves as a visual reference, enabling production personnel to quickly identify the location and extent of the prohibited wiring area 3, thereby avoiding accidental entry into this area during wiring. This not only improves production efficiency and accuracy but also reduces circuit failures and rework costs caused by wiring errors. Furthermore, the silkscreen frame 5 enhances the readability and maintainability of the circuit board 1. Through the silkscreen frame 5, production personnel can clearly see the various components and wiring areas on the circuit board 1, making troubleshooting and repair easier. Additionally, during production, production personnel can quickly locate the prohibited wiring area 3 based on the markings in the silkscreen frame 5, thereby avoiding unnecessary processing and adjustments, reducing complexity and uncertainty in the production process, and improving production efficiency and quality stability.

[0031] In this embodiment, the width D of the silkscreen frame 5 is 6mil to 8mil. The width D of the silkscreen frame 5 can be designed to be any value in the range of 6mil, 6.2mil, 6.4mil, 6.6mil, 6.8mil, 7mil, 7.2mil, 7.4mil, 7.6mil, 7.8mil, 8mil, etc. In actual design, the width D of the silkscreen frame 5 can be designed according to actual needs.

[0032] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product is usually placed in during use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0033] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0034] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A packaging structure for preventing direct-dive wiring in a transformer, characterized in that, It includes a transformer mounted on a circuit board, with a no-wiring zone located below the transformer, and copper foil installed within the no-wiring zone.

2. The encapsulation structure for preventing direct-through of transformer wires according to claim 1, characterized in that, The shape of the prohibited wiring area is the same as the orthographic projection shape of the transformer.

3. The encapsulation structure for preventing direct-through of transformer wires according to claim 1, characterized in that, The area of ​​the prohibited wiring zone is the same as the projected area of ​​the transformer.

4. The encapsulation structure for preventing direct-through wiring of a transformer according to claim 1, characterized in that, The shape of the copper foil is the same as the shape of the prohibited wiring area.

5. The encapsulation structure for preventing direct-through of transformer wires according to claim 1, characterized in that, The area of ​​the copper foil is the same as the area of ​​the prohibited wiring zone.

6. The encapsulation structure for preventing direct-through wiring of a transformer according to claim 1, characterized in that, The circuit board is provided with a silkscreen frame, and the edge of the silkscreen frame coincides with the edge of the prohibited wiring area.

7. The encapsulation structure for preventing direct-through wiring of a transformer according to claim 6, characterized in that, The width of the silkscreen frame is 6mil to 8mil.

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