LLC magnetic integrated transformer capable of improving insulation effect

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to an LLC magnetic integrated transformer capable of improving the insulation effect, which comprises a base and a transformer magnetic core arranged on the surface of the base, a transformer winding is arranged in the transformer magnetic core, one end of the transformer magnetic core is connected with a resonant inductor magnetic core, and the other end of the transformer magnetic core is connected with an inductor. According to the utility model, the enameled wire is wound on the transformer winding and the resonant inductor winding, so that the film-covered wire has good heat resistance and voltage resistance, and can keep stable insulation performance in high-temperature and high-voltage environments; and the transformer magnetic core and the resonant inductor magnetic core are limited and assembled stably by the extrusion plate, so that the LLC magnetic integrated transformer is prevented from loosening and falling off during use, and the service life of the LLC magnetic integrated transformer is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of LLC magnetic integrated transformer technology, specifically relating to an LLC magnetic integrated transformer that can improve insulation performance. Background Technology

[0002] LLC magnetically integrated transformers combine the functions of a transformer and a resonant inductor by altering the magnetic flux in the primary winding using the principle of magnetic superposition. Their basic operating principle involves voltage and current conversion via a resonant network, which includes an inductor (L) and a capacitor (C). Energy transfer is achieved by adjusting the operating frequency. In an LLC resonant converter, the transformer and resonant inductor are integrated into a compact and efficient circuit structure.

[0003] LLC magnetic integrated transformers typically consist of a magnetic core, windings, insulation materials, and a housing. The magnetic core is generally made of ferrite material, and the windings include primary and secondary windings, each wound on the core. Insulation materials isolate the windings and prevent short circuits, while the housing provides mechanical protection. During the use of LLC magnetic integrated transformers, due to the small size of most commercially available models, the internal magnetic core is prone to loosening or improper assembly during assembly, thus reducing the transformer's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide an LLC magnetic integrated transformer that can improve insulation performance. This invention aims to solve the problem that, in the use of the aforementioned equipment in the prior art, the LLC magnetic integrated transformer is prone to internal core loosening or even loose assembly during the assembly process due to the small size of most LLC magnetic integrated transformers on the market, which reduces the service life of the LLC magnetic integrated transformer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an LLC magnetic integrated transformer that can improve insulation performance, comprising a base and a transformer core mounted on the surface of the base, wherein a transformer winding is installed inside the transformer core, one end of the transformer core is connected to a resonant inductor core, a resonant inductor winding is installed inside the resonant inductor core, pins are connected to the bottom surface of the base, and film-wrapped wire is wound on the surfaces of the transformer winding and the resonant inductor winding;

[0006] The base is connected to two limit plates on both sides, and a limit spring is connected to the inner opening of the limit plate. The other end of the limit spring is connected to a compression plate, and a fixing block is connected to the surface of the base near the pin.

[0007] As a preferred embodiment of the LLC magnetic integrated transformer of the present invention, which can improve the insulation effect, the surface of the base is equipped with a transformer assembly, which consists of a transformer core and a transformer winding.

[0008] As a preferred embodiment of the LLC magnetic integrated transformer of this utility model that can improve insulation effect, the limiting spring and the extrusion plate form an elastic telescopic structure, and the extrusion plate is made of PVC material.

[0009] As a preferred embodiment of the LLC magnetic integrated transformer of this utility model that can improve insulation effect, the two ends of the fixing block are connected to a linkage spring, and the other end of the linkage spring is connected to a linkage plate.

[0010] As a preferred embodiment of the LLC magnetic integrated transformer of the present invention that can improve insulation effect, a connecting block is connected to the other side of the linkage plate, a movable clamping plate is connected to the other side of the connecting block, and the connecting block passes through the fixed block and extends to the outside of the fixed block.

[0011] As a preferred embodiment of the LLC magnetic integrated transformer of this utility model that can improve insulation effect, the base is connected to a fixed clamping plate on the surface near the movable clamping plate, and the opening size of the fixed clamping plate on the opposite side of the movable clamping plate is adapted to the pin surface size.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention improves the insulation performance of LLC magnetic integrated transformers by winding enameled wire around the transformer windings and resonant inductor windings. The enameled wire has good heat and pressure resistance, and can maintain stable insulation performance under high temperature and high pressure environments. In addition, when the transformer core and resonant inductor core are installed inside the base, the extrusion plate squeezes the limiting spring. The rebound of the limiting spring then limits and stabilizes the extrusion plate on the transformer core and resonant inductor core, preventing the LLC magnetic integrated transformer from loosening or falling off during use, thus extending the service life of the LLC magnetic integrated transformer. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of the LLC magnetic integrated transformer of this utility model;

[0016] Figure 2 This is a schematic diagram of the base connection structure of this utility model;

[0017] Figure 3 This is an exploded view of the base structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the connecting block of this utility model.

[0019] In the diagram: 1. Base; 2. Transformer core; 3. Transformer winding; 4. Resonant inductor core; 5. Resonant inductor winding; 6. Transformer assembly; 7. Pin; 8. Limiting side plate; 9. Limiting spring; 10. Extrusion plate; 11. Fixing block; 12. Linkage spring; 13. Linkage plate; 14. Connecting block; 15. Movable clamping plate; 16. Fixed clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 The present invention provides the following technical solution: an LLC magnetic integrated transformer that can improve insulation effect, including a base 1 and a transformer core 2 installed on the surface of the base 1, a transformer winding 3 installed inside the transformer core 2, a resonant inductor core 4 connected to one end of the transformer core 2, a resonant inductor winding 5 installed inside the resonant inductor core 4, a pin 7 connected to the bottom surface of the base 1, and a film-wrapped wire wound on the surface of the transformer winding 3 and the resonant inductor winding 5.

[0022] Limiting side plates 8 are connected to both sides of the base 1. Limiting springs 9 are connected to the inner opening of the limiting side plates 8. A pressing plate 10 is connected to the other end of the limiting springs 9. A fixing block 11 is connected to the surface of the base 1 near the pin 7.

[0023] Preferably, a transformer assembly 6 is mounted on the surface of the base 1. The transformer assembly 6 consists of a transformer core 2 and a transformer winding 3.

[0024] In practical applications, membrane-coated wires perform excellently at high frequencies, effectively reducing the skin effect and improving current transmission efficiency. They are resistant to high temperatures and high voltages, maintaining stable insulation performance even under high temperature and high voltage conditions. They are flexible and resistant to mechanical stress, allowing them to maintain stable performance in complex applications. They are also waterproof and resistant to insulating oils, making them suitable for use in sealed environments and further enhancing their insulation performance.

[0025] Preferably, the limiting spring 9 and the extrusion plate 10 form an elastic telescopic structure, and the extrusion plate 10 is made of PVC material.

[0026] In practical use, the extrusion plate 10 facilitates the limiting and extrusion of the transformer core 2 and the resonant inductor core 4, thereby improving the overall integrity and strength of the LLC magnetic integrated transformer.

[0027] Preferably, the two ends of the fixed block 11 are connected to the linkage spring 12, and the other end of the linkage spring 12 is connected to the linkage plate 13.

[0028] In practical use, the linkage spring 12 facilitates the movement of the movable clamping plate 15, making it easy to cooperate with the fixed clamping plate 16.

[0029] Preferably, a connecting block 14 is connected to the other side of the linkage plate 13, and a movable clamping plate 15 is connected to the other side of the connecting block 14. The connecting block 14 passes through the fixed block 11 and extends to the outside of the fixed block 11.

[0030] In practical use, the rebound force of the linkage spring 12 drives the movable clamp 15 to move.

[0031] Preferably, a fixed clamping plate 16 is connected to the surface of the base 1 near the movable clamping plate 15, and the opening size of the fixed clamping plate 16 on the opposite side of the movable clamping plate 15 is adapted to the surface size of the pin 7.

[0032] In practical use, the use of the movable clamping plate 15 and the fixed clamping plate 16 makes it easy to clamp and protect the pin 7, thereby improving the overall strength of the pin 7 and extending its service life.

[0033] The working principle of this utility model is as follows: First, by winding enameled wire around the transformer winding 3 and the resonant inductor winding 5, the enameled wire has good heat resistance and pressure resistance, and can maintain stable insulation performance under high temperature and high pressure environments, thereby improving the insulation effect of the LLC magnetic integrated transformer. In addition, when the transformer core 2 and the resonant inductor core 4 are installed inside the base 1, the extrusion plate 10 is driven to extrude the limiting spring 9. After the limiting spring 9 rebounds, the extrusion plate 10 limits and stabilizes the transformer core 2 and the resonant inductor core 4, preventing the LLC magnetic integrated transformer from loosening and falling off during use, thus improving the service life of the LLC magnetic integrated transformer. Furthermore, by extending and retracting the movable clamping plate 15 towards the inside of the fixed block 11, the linkage plate 13 is driven to extrude the linkage spring 12. After the linkage spring 12 rebounds, the movable clamping plate 15 moves closer to the pin 7 and is clamped and fixed by the fixed clamping plate 16, thereby improving the overall strength of the pin 7, preventing the pin 7 from bending or breaking, and improving the service life of the LLC magnetic integrated transformer with pin 7.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An LLC magnetic integrated transformer with improved insulation performance, comprising a base (1) and a transformer core (2) mounted on the surface of the base (1), characterized in that: The transformer core (2) is equipped with a transformer winding (3), and one end of the transformer core (2) is connected to a resonant inductor core (4). The resonant inductor core (4) is equipped with a resonant inductor winding (5), and the bottom surface of the base (1) is connected to a pin (7). The transformer winding (3) and the resonant inductor winding (5) are wrapped with film-coated wire. The base (1) is connected to two limit side plates (8) on both sides. The inner opening of the limit side plate (8) is connected to a limit spring (9). The other end of the limit spring (9) is connected to a pressing plate (10). The surface of the base (1) near the pin (7) is connected to a fixing block (11).

2. The LLC magnetic integrated transformer with improved insulation effect according to claim 1, characterized in that: The base (1) is mounted on a transformer assembly (6), which consists of a transformer core (2) and a transformer winding (3).

3. The LLC magnetic integrated transformer with improved insulation effect according to claim 1, characterized in that: The limiting spring (9) and the extrusion plate (10) form an elastic telescopic structure, and the extrusion plate (10) is made of PVC material.

4. An LLC magnetically integrated transformer with improved insulation performance according to claim 1, characterized in that: The fixed block (11) has a linkage spring (12) connected to both ends of the opening, and the other end of the linkage spring (12) is connected to a linkage plate (13).

5. An LLC magnetically integrated transformer with improved insulation performance according to claim 4, characterized in that: A connecting block (14) is connected to the other side of the linkage plate (13), and a movable clamping plate (15) is connected to the other side of the connecting block (14). The connecting block (14) passes through the fixing block (11) and extends to the outside of the fixing block (11).

6. An LLC magnetically integrated transformer with improved insulation performance according to claim 1, characterized in that: The base (1) has a fixed clamp (16) connected to the surface of the movable clamp (15) near the base (1). The opening size of the fixed clamp (16) on the opposite side of the movable clamp (15) is adapted to the surface size of the pin (7).

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