Portable energy storage LLC transformer capable of being flexibly assembled

Abstract

The portable energy storage LLC transformer capable of being flexibly assembled comprises a transformer shell, a coil fixed shaft and a framework, the coil fixed shaft and the framework are arranged in the transformer shell, and movable connecting blocks used for positioning the coil fixed shaft are fixed to the left end and the right end of the inner side of the framework. The bottom of the coil fixed shaft is provided with a connecting mechanism used for butt joint assembly. According to the portable energy storage LLC transformer capable of being flexibly assembled, the transformer secondary is formed by integral injection molding of C1100 copper sheets and bakelite powder, process production automation and standardization can be carried out, manpower is saved, cost is effectively saved, the framework of the transformer and the coil fixed shaft can be flexibly assembled and matched through the arrangement of the connecting mechanism, and the transformer is convenient to assemble and disassemble. And in addition, the transformer shell is soaked with the insulating oil, so that the overall compactness of the transformer can be improved, and it is guaranteed that the transformer is stable in structure and cannot move.

Description

Technical Field

[0001] This utility model relates to the technical field of LLC transformers, specifically a portable energy storage LLC transformer that can be flexibly assembled. Background Technology

[0002] LLC transformers are power conversion devices that can adjust current and voltage to provide appropriate electrical energy to various electronic devices. They can precisely adjust current and voltage according to the needs of different devices and can also be used as power regulators. They have applications in many fields such as high-frequency switching power supplies, vehicle OBCs, and charging piles.

[0003] As disclosed in CN208954762U, an LLC transformer includes: a first magnetic core; a second magnetic core covering the first magnetic core and forming a receiving cavity with the first magnetic core; a coil frame disposed within the receiving cavity; a primary winding and a secondary winding simultaneously wound on the coil frame; and a magnetic sheet disposed between the primary winding and the secondary winding. The magnetic sheet includes a first magnetic body and a second magnetic body separately disposed, which are respectively snapped onto the coil frame to form the magnetic sheet. The LLC transformer provided by this utility model, by setting a magnetic sheet between the primary winding and the secondary winding, adjusts the leakage inductance of the transformer. The adjusted leakage inductance serves as a resonant inductance to cooperate with the transformer's operation. Therefore, there is no need to separately set up a resonant inductance winding, thereby saving the space occupied by the resonant inductance winding, reducing the overall size of the LLC transformer, and facilitating its miniaturization.

[0004] However, existing technologies have problems such as inconvenient assembly and connection between the transformer frame and the coil fixed axis, poor tightness between internal components and the outer shell, easy displacement of internal components during long-term use, and high overall production cost. For example, the comparative patents listed above have this problem.

[0005] To address these issues, we propose a portable, flexibly assembled LLC energy storage transformer. Utility Model Content

[0006] The purpose of this utility model is to provide a portable energy storage LLC transformer that can be flexibly assembled, so as to solve the problems mentioned in the background art, such as the inconvenience of assembling and connecting the frame and coil fixed axis of the transformer, the poor tightness between its internal components and the outer shell, the easy displacement of internal components during long-term use, and the high overall production cost.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a portable energy storage LLC transformer that can be flexibly assembled, comprising a transformer housing and a coil fixed shaft and a frame disposed inside the transformer housing, wherein a coil group is wound on the outer surface of the coil fixed shaft;

[0008] Also includes:

[0009] Both ends of the inner side of the frame are fixed with movable connecting blocks for positioning with the coil fixed axis, and the bottom of the coil fixed axis is provided with a connecting mechanism for docking and assembly.

[0010] As a preferred technical solution of this utility model, the left and right sides of the coil fixed axis are provided with connecting slots that match the movable connecting blocks, and the movable connecting blocks form a sliding structure in the connecting slots.

[0011] The above technical solution involves opening connecting slots on both the left and right sides of the coil fixed axis to match the movable connecting blocks, and the movable connecting blocks forming a back-and-forth sliding structure in the connecting slots, which facilitates the installation and positioning of the frame and the coil fixed axis.

[0012] As a preferred embodiment of this utility model, the bottom of the frame is provided with a fixing groove for limiting positioning.

[0013] The above technical solution uses a fixing groove for limiting the position at the bottom of the frame. The fixing groove and the positioning protrusion are arranged in a corresponding manner, which facilitates the positioning of the coil axis and the frame.

[0014] As a preferred embodiment of this utility model, the connecting mechanism is composed of a spring disposed inside the coil fixed axis, a movable connecting column with a "T" shaped structure, a connecting plate fixed at the lower end of the movable connecting column, and a positioning protrusion disposed at the lower end of the connecting plate for limiting the movement.

[0015] The above technical solution uses a connecting mechanism consisting of a spring inside the coil fixed shaft, a movable connecting column with a "T" shape, a connecting plate fixed at the lower end of the movable connecting column, and a positioning protrusion at the lower end of the connecting plate for limiting the movement. The connecting mechanism facilitates limiting the movement between coil fixed shafts.

[0016] As a preferred technical solution of this utility model, the movable connecting column forms an up-and-down sliding structure in the transformer housing, and the movable connecting column is fixedly connected to the front and rear sides of the upper end of the connecting plate respectively.

[0017] The connecting plate is telescopically connected to the lower end of the coil fixed shaft, and the lower surface of the connecting plate is flush with the lower end of the coil fixed shaft.

[0018] Using the above technical solution, a sliding structure is formed in the transformer housing by means of movable connecting columns, and the movable connecting columns are respectively fixedly connected to the front and rear sides of the upper end of the connecting plate;

[0019] The connecting plate is telescopically connected to the lower end of the coil fixed shaft, and the lower surface of the connecting plate is flush with the lower end of the coil fixed shaft, so that the connecting plate drives the positioning protrusion to move up and down at the lower end of the coil fixed shaft.

[0020] As a preferred technical solution of this utility model, the lower end of the connecting plate is fixedly connected to a positioning protrusion, and the connecting plate drives the positioning protrusion to engage in the fixing groove at the corresponding position, and the positioning protrusion and the fixing groove are arranged in a one-to-one correspondence.

[0021] Using the above technical solution, a positioning protrusion is fixedly connected to the lower end of the connecting plate, and the connecting plate drives the positioning protrusion to engage in the corresponding fixing groove. The positioning protrusion and the fixing groove are set in a one-to-one correspondence, which facilitates the disassembly and assembly of the coil fixed shaft and the frame.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This portable energy storage LLC transformer that can be flexibly assembled uses C1100 copper sheets and bakelite powder for integrated injection molding of the transformer secondary, which enables automated and standardized production, saves manpower, and effectively reduces costs. Moreover, the connection mechanism between the transformer frame and the coil fixed shaft allows for flexible assembly and coordination, breaks down the process, and improves work efficiency. In addition, the transformer shell is soaked in insulating oil, which improves the overall tightness of the transformer and ensures that the transformer structure is stable and will not move.

[0023] 1. It is equipped with a transformer shell and insulating oil. The inside of the transformer shell is soaked in insulating oil. The use of insulating oil can improve the tightness between the transformer shell and the internal components, prevent the internal components of the transformer shell from shifting during long-term use, and effectively improve stability.

[0024] 2. It is equipped with a coil fixed axis, a frame, a connecting long groove and a movable connecting block. The movable connecting block is fixed at the left and right ends of the inner side of the frame. The frame drives the movable connecting block to slide in the connecting long groove on the left and right sides of the coil fixed axis, thereby facilitating the docking and positioning between the frame and the coil fixed axis.

[0025] 3. A connecting mechanism is provided, which includes a spring, a movable connecting column, a connecting plate, and a positioning protrusion. Through the setting of the connecting mechanism, the coil fixed axis and the frame can be assembled and connected very conveniently, and the disassembly and assembly operations are relatively convenient. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the coil fixed axis, frame and coil assembly of this utility model;

[0028] Figure 3 This is a bottom view of the coil axis, frame, and connecting plate of this utility model.

[0029] Figure 4 This is a frontal sectional view of the coil fixed axis, frame, connecting plate and positioning protrusion of this utility model.

[0030] Figure 5 This is a schematic diagram of the exploded structure of the coil fixed axis and frame of this utility model;

[0031] Figure 6 This is a bottom view of the coil fixed axis, frame, movable connecting block and connecting plate of this utility model;

[0032] Figure 7 This is an exploded structural diagram of the coil fixed axis, movable connecting column and connecting plate of this utility model.

[0033] In the diagram: 1. Transformer housing; 2. Coil fixed axis; 3. Frame; 4. Coil group; 5. Connecting long slot; 6. Movable connecting block; 7. Fixed slot; 8. Spring; 9. Movable connecting column; 10. Connecting long plate; 11. Positioning protrusion. Detailed Implementation

[0034] 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.

[0035] Please see Figures 1-7 .

[0036] To address the problems in existing technologies, such as inconvenient assembly and connection between the frame 3 and the coil shaft 2, poor tightness between internal components and the outer casing, easy displacement of internal components during long-term use, and high overall production costs, this solution provides a portable energy storage LLC transformer that can be flexibly assembled. The transformer includes a transformer housing 1, a coil shaft 2 and a frame 3 disposed inside the housing 1. A coil group 4 is wound around the outer surface of the coil shaft 2. Movable connecting blocks 6 for positioning with the coil shaft 2 are fixed at both ends of the inner side of the frame 3. A connecting mechanism for docking and assembly is provided at the bottom of the coil shaft 2.

[0037] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the connecting mechanism consists of a spring 8 located inside the coil fixed shaft 2, a movable connecting column 9 with a "T" shape, a connecting plate 10 fixed to the lower end of the movable connecting column 9, and a positioning protrusion 11 located at the lower end of the connecting plate 10 for limiting the movement. First, by pressing the connecting plate 10 upwards, the connecting plate 10 extends and retracts at the bottom of the coil fixed shaft 2, and the connecting plate 10 drives the movable connecting column 9 to slide and retract between the coil fixed shaft 2. At this time, the movable connecting column 9 compresses the spring 8, causing the spring 8 to undergo elastic deformation. Then, the frame 3 is fitted onto the outer surface of the coil fixed shaft 2, and movable connecting blocks 6 are fixedly connected to both the left and right ends of the inner side of the frame 3. The left side of the coil fixed shaft 2... Both ends of the frame are provided with connecting slots 5. The frame 3 drives the movable connecting block 6 to slide back and forth in the connecting slots 5, which facilitates the positioning between the frame 3 and the coil fixed shaft 2. In addition, the inner side of the lower end of the frame 3 is provided with a fixing slot 7. After the fixing slot 7 is moved to the lower end of the positioning protrusion 11 in the corresponding position, the connecting plate 10 is released directly. At this time, the spring 8 returns to its elastic deformation and pushes the movable connecting column 9 to move downward. The movable connecting column 9 pushes the connecting plate 10 to move downward, so that the connecting plate 10 drives the positioning protrusion 11 to engage in the fixing slot 7 in the corresponding position. This facilitates the quick connection and positioning between the frame 3 and the coil fixed shaft 2. The disassembly and assembly operations are more convenient, the process is divided, and the work efficiency is improved.

[0038] Moreover, as Figure 1 , Figure 2 and Figure 3 As shown, the secondary winding of the transformer is integrally injection molded using C1100 copper sheets and bakelite powder. The overall production process is highly automated and standardized, saving manpower and thus effectively reducing costs. Furthermore, the transformer casing 1 is soaked in insulating oil, which improves the overall tightness of the transformer and ensures that the transformer structure remains stable and does not move during long-term use, resulting in a high degree of stability.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable energy storage LLC transformer that can be flexibly assembled, comprising a transformer housing (1) and a coil fixed shaft (2) and a frame (3) disposed inside the transformer housing (1), wherein the outer surface of the coil fixed shaft (2) is wound with a coil group (4). Its features are, Also includes: The inner left and right ends of the frame (3) are fixed with movable connecting blocks (6) for positioning with the coil fixed shaft (2), and the bottom of the coil fixed shaft (2) is provided with a connecting mechanism for docking and assembly.

2. The portable energy storage LLC transformer that can be flexibly assembled according to claim 1, characterized in that: The coil fixed axis (2) has connecting slots (5) on both the left and right sides that match the movable connecting block (6), and the movable connecting block (6) forms a sliding structure in the connecting slot (5).

3. The portable energy storage LLC transformer that can be flexibly assembled according to claim 1, characterized in that: The bottom of the frame (3) is provided with a fixing groove (7) for limiting positioning.

4. The portable energy storage LLC transformer that can be flexibly assembled according to claim 1, characterized in that: The connecting mechanism is composed of a spring (8) located inside the coil fixed shaft (2), a movable connecting post (9) in a "T" shape, a connecting plate (10) fixed at the lower end of the movable connecting post (9), and a positioning protrusion (11) located at the lower end of the connecting plate (10) for limiting the position.

5. A portable energy storage LLC transformer that can be flexibly assembled according to claim 4, characterized in that: The movable connecting column (9) forms an up-and-down sliding structure in the transformer housing (1), and the movable connecting column (9) is fixedly connected to the front and rear sides of the upper end of the connecting plate (10); The connecting plate (10) is telescopically connected to the lower end of the coil fixed shaft (2), and the lower surface of the connecting plate (10) is flush with the lower end of the coil fixed shaft (2).

6. A portable energy storage LLC transformer that can be flexibly assembled according to claim 5, characterized in that: The lower end of the connecting plate (10) is fixedly connected to a positioning protrusion (11), and the connecting plate (10) drives the positioning protrusion (11) to engage in the corresponding fixing groove (7), and the positioning protrusion (11) and the fixing groove (7) are arranged in a one-to-one correspondence.

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