A connection structure between an OBC transformer and a capacitor PCB board

Abstract

This utility model discloses a connection structure between an OBC transformer and a capacitor PCB board. The OBC transformer includes an OBC base fixing frame with OBC fixing frame hooks. The capacitor PCB board has capacitor PCB board mounting holes. The OBC transformer is engaged with the pre-drilled capacitor PCB board mounting holes on the capacitor PCB board via the OBC fixing frame hooks. This OBC transformer and capacitor PCB board connection structure is easy to install and operate, uses mature and reliable technology, and is feasible for large-scale production. The structure provides a firm snap-fit ​​connection, is easy to position with the OBC transformer, and the connection strength meets automotive industry standards, ensuring stable current transmission in the device.

Description

Technical Field

[0001] This utility model relates to a connection structure between an OBC transformer and a capacitor PCB board. Background Technology

[0002] With the increasing demands for space utilization and lightweight design in electric vehicles, OBC miniaturization has become a crucial industry trend. Successful OBC miniaturization necessitates minimizing the related PCB design. Due to the multiple combinations and soldering methods of its components and power devices, the overall process and structural implementation face more stringent requirements. Achieving a fast, reliable, and stable connection between the OBC transformer and the capacitor PCB board has become a key challenge. Utility Model Content

[0003] The purpose of this invention is to provide a connection structure between the OBC transformer and the capacitor PCB board, which enables a reliable and stable connection between the OBC transformer and the capacitor PCB board, reducing the investment and use of specialized equipment in tooling and assembly processes. This makes the assembly process of PCBA components much simpler.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] This utility model relates to an OBC transformer and capacitor PCB board connection structure, wherein the OBC transformer includes an OBC base fixing frame and an OBC fixing frame hook is provided on the OBC base fixing frame.

[0006] The capacitor PCB board is provided with capacitor PCB board mounting holes;

[0007] The OBC transformer is connected to the pre-drilled mounting holes on the capacitor PCB board via the OBC fixing frame hooks.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the OBC transformer further includes an OBC magnetic core, an OBC coil winding, an OBC transformer frame, and OBC epoxy resin.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the material of the OBC base fixing frame is thermoplastic polyester engineering plastic.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the number of OBC fixing frame hooks is two, with a width of 3mm and a thickness of 1mm.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the capacitor PCB board has two mounting holes, each 4mm long and 1.5mm wide.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the OBC transformer 1 is further provided with OBC transformer positioning holes, the number of which is 3, and the diameter is 5.8mm.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: one end of the capacitor PCB board is provided with four welding bosses.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the OBC transformer 1 is further provided with a positioning column.

[0015] The beneficial effects of this utility model are as follows: The OBC transformer and capacitor PCB board connection structure involved in this utility model is easy to install and operate, adopts mature and reliable technology, and is feasible for large-scale production. This structure features a firm snap-fit ​​connection, easy positioning with the OBC transformer, and connection strength that meets automotive industry standards, ensuring stable current transmission in the equipment. Attached Figure Description

[0016] Figure 1 This is a diagram showing the connection structure between the OBC transformer and the capacitor on the PCB board.

[0017] Figure 2 This is a structural diagram of the OBC transformer;

[0018] Figure 3 This is a structural diagram of the OBC transformer from another perspective;

[0019] Figure 4 This is a structural diagram of the capacitor welding module;

[0020] Figure 5 This is a structural diagram of the capacitor welding module from another perspective;

[0021] Figure 6 This is a connection diagram of the OBC transformer, capacitor welding module, and OBC motherboard. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Combination Figures 1 to 6 This invention provides a detailed description of the present invention. The OBC transformer 1 needs to be fixedly connected to the capacitor welding module 2 first, and then welded and fixed to the OBC mainboard 3. The capacitor welding module 2 includes a capacitor PCB board 2-a and capacitors welded to the capacitor PCB board 2-a. The OBC transformer and capacitor PCB board connection structure involved in this invention includes the OBC transformer 1 being fixedly connected to the capacitor welding module 2 via the capacitor PCB board 2-a.

[0024] The OBC transformer 1 includes an OBC base fixing frame 1-d, on which an OBC fixing frame hook 1-f is provided; the capacitor PCB board 2-a is provided with a capacitor PCB board mounting hole 2-d; the OBC fixing frame hook 1-f matches the capacitor PCB board mounting hole 2-d. The OBC transformer 1 is engaged with the capacitor PCB board mounting hole 2-d on the capacitor PCB board 2-a by the OBC fixing frame hook 1-f, that is, the OBC fixing frame hook 1-f is inserted into the capacitor PCB board mounting hole 2-d to achieve a fixed connection between the two. This connection structure, through the designed engagement of the OBC fixing frame hook 1-f with the capacitor PCB board mounting hole 2-d, facilitates quick installation by operators.

[0025] Furthermore, the OBC transformer 1 also includes an OBC magnetic core 1-a, an OBC coil winding 1-b, an OBC transformer skeleton 1-c, and OBC epoxy resin disposed inside the OBC base fixing frame 1-d. An injection hole 1-j is also provided on the OBC base fixing frame 1-d for injecting epoxy resin after assembly and curing it under vacuum. The injection hole is located at the bottom, on the side where the OBC transformer 1 contacts the OBC mainboard 3.

[0026] Furthermore, the OBC base fixing frame 1-d is made of thermoplastic polyester engineering plastic. Thermoplastic polyester engineering plastic has excellent fatigue resistance and wear resistance, good dimensional stability and electrical properties, and can meet the material requirements of OBC transformers.

[0027] Furthermore, the number of OBC fixing frame hooks 1-f is two, each 3mm wide and 1mm thick. The number of capacitor PCB board mounting holes 2-d is two, each 4mm long and 1.5mm wide.

[0028] Furthermore, the OBC transformer 1 is also provided with three OBC transformer positioning holes 1-g, each with a diameter of 5.8mm. The OBC mainboard 3 is provided with corresponding holes to the OBC transformer positioning holes 1-g, for fixing the OBC mainboard 3 and the OBC transformer 1 together.

[0029] Furthermore, one end of the capacitor PCB board is provided with four soldering bosses 2-c. The OBC mainboard 3 is provided with holes corresponding to the four soldering bosses 2-c, and during assembly, the four soldering bosses 2-c are inserted into the corresponding holes.

[0030] Furthermore, the OBC transformer 1 is also equipped with four positioning posts with a circular cross-section. The OBC main board 3 has holes corresponding to the positioning posts 1-g, which are inserted into the corresponding holes during assembly.

[0031] Furthermore, a protrusion 1-i is provided on the OBC base fixing frame 1-d, which is inserted between two adjacent welding bosses 2-c during assembly.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An OBC transformer and capacitor PCB board connection structure, characterized in that, The OBC transformer (1) includes an OBC base fixing frame (1-d), and an OBC fixing frame hook (1-f) is provided on the OBC base fixing frame (1-d). The capacitor PCB board (2-a) is provided with capacitor PCB board mounting holes (2-d). The OBC transformer (1) is connected to the capacitor PCB board mounting hole (2-d) reserved on the capacitor PCB board (2-a) by the OBC fixing frame hook (1-f).

2. The OBC transformer and capacitor PCB board connection structure according to claim 1, characterized in that, The OBC transformer (1) also includes an OBC magnetic core (1-a), an OBC coil winding (1-b), an OBC transformer skeleton (1-c), and an OBC epoxy resin (1-e).

3. The OBC transformer and capacitor PCB board connection structure of claim 2, wherein, The OBC base fixing frame (1-d) is made of thermoplastic polyester engineering plastic.

4. The OBC transformer and capacitor PCB board connection structure of claim 1, wherein, The number of OBC fixing frame hooks (1-f) is two, with a width of 3mm and a thickness of 1mm.

5. The OBC transformer and capacitor PCB board connection structure of claim 1, wherein, The capacitor PCB board has two mounting holes (2-d), each 4mm long and 1.5mm wide.

6. The OBC transformer and capacitor PCB board connection structure of claim 1, wherein, The OBC transformer (1) is also provided with OBC transformer positioning holes (1-g), which are 3 in number and have a diameter of 5.8 mm.

7. The OBC transformer and capacitor PCB board connection structure of claim 1, wherein, The capacitor PCB board has four solder bosses (2-c) on one end.

8. The OBC transformer and capacitor PCB board connection structure of claim 1, wherein, The OBC transformer (1) is also equipped with a positioning column.

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