Connector

Abstract

The utility model belongs to the technical field of power electronic equipment, and particularly relates to a connector assembly, which comprises a flexible transition section with conductivity, a first joint and a second joint. The first connector and the second connector are connected to the two ends of the flexible transition section respectively. The rigidity of the flexible transition section is smaller than that of the first connector and / or the second connector. According to the utility model, the flexible transition section is arranged on the connector, the effective area of the printed circuit board is not reduced, and the mechanical load is absorbed through the deformation of the flexible transition section, so that the deformation and surface strain of components are reduced, additional parts are not needed, the cost can be reduced, and the product size is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of power electronic equipment technology, and specifically relates to a connector. Background Technology

[0002] With the development of the automotive industry and the trend of vehicle electrification, the application of power electronic devices such as motor controllers, chargers, and DC-DC converters in automobiles is becoming increasingly widespread. Meanwhile, low cost and miniaturization are also development trends for these devices. In these power electronic devices, connectors, as components that enable the transmission of electrical signals and energy between the device and the outside world, are extremely important.

[0003] When the external terminals are parallel to the printed circuit board (PCB), a copper busbar parallel to the PCB is used for connection. However, when the external terminals are perpendicular to the PCB, a connector stud is required. One end of the connector stud has a screw hole with its axis parallel to the PCB. The external terminals are fixed to one end of the connector stud by screws inserted into the screw holes. The other end of the connector stud has a flat surface to fit against the PCB, and the PCB is then fixed to the connector stud by screws.

[0004] Since most of the components mounted on printed circuit boards (PCBs) are stress-sensitive, such as ceramic capacitors, and the PCB material itself has relatively limited rigidity, the PCB can deform under the influence of assembly tolerances and external assembly torque, resulting in excessive strain in the component area due to the mechanical load on the mating connector studs.

[0005] To reduce the deformation of printed circuit boards (PCBs), existing technologies typically involve slotting the output interface area of ​​the PCB to reduce the stiffness of the output interface area, thus confining the PCB deformation to a localized area and avoiding stress-sensitive components. However, this method reduces the effective area on the PCB, limiting the flexibility of component placement and hindering product miniaturization. Utility Model Content

[0006] This application provides a connector to solve related technical problems.

[0007] This utility model is achieved through the following technical solution:

[0008] A connector, comprising:

[0009] A flexible transition section with conductive properties, a first connector, and a second connector;

[0010] The first connector and the second connector are respectively connected to both ends of the flexible transition section;

[0011] The stiffness of the flexible transition section is less than that of the first joint and / or the second joint.

[0012] In this invention, the flexible transition section, the first connector, and the second connector all have conductive properties, ensuring that the connector can achieve electrical connection. Since the stiffness of the flexible transition section is less than that of the first connector and / or the second connector, after the component is installed on the first or second connector, the flexible transition section can withstand more deformation, thereby reducing the deformation and surface strain of the component.

[0013] Furthermore, the flexible transition section is a flat plate-like structure. The design of the flexible transition section as a flat plate-like structure facilitates bending deformation to absorb mechanical loads.

[0014] To ensure that the flexible transition section has good overcurrent capability and heat dissipation performance, the dimensions of the flexible transition section are optimized. Specifically, the thickness of the flexible transition section is 1-4 mm, and the length of the flexible transition section is 5-15 mm.

[0015] To reduce manufacturing costs, the flexible transition section, the first connector, and the second connector are processed on the same conductive body; the flexible transition section is processed using a subtractive material process or a mold forming process.

[0016] The flexible transition section, which is processed by subtractive manufacturing or mold forming, has a sudden change in cross-section relative to the first and second joints. In order to avoid stress concentration after deformation, the connection needs to be optimized: the two ends of the flexible transition section are connected to the first and second joints respectively through transition fillets.

[0017] The flexible transition section can also be made of special materials to reduce stiffness. Specifically, the flexible transition section is made of a porous material with conductive properties. Porous materials have a certain degree of elasticity, and therefore can undergo elastic deformation to absorb mechanical loads.

[0018] Furthermore, the first connector is used to connect to the printed circuit board; the second connector is used to connect to the terminal block.

[0019] Furthermore, the first connector has a mounting surface for attaching the printed circuit board.

[0020] Furthermore, the flexible transition section has a flat plate-like structure and is parallel to the mounting plane. This reduces both the torsional stiffness and the vertical stiffness of the printed circuit board.

[0021] Furthermore, the flexible transition section has a flat plate-like structure and is perpendicular to the mounting plane. This reduces the stiffness in the torsional direction while maintaining the vertical stiffness of the printed circuit board, resulting in good support.

[0022] Furthermore, the second connector has screw connection holes.

[0023] Furthermore, it also includes an insulating support having an axial through hole, the second connector being embedded in the axial through hole, and the flexible transition section and the first connector extending out of the axial through hole.

[0024] Furthermore, the insulating bracket is also provided with a mounting part for connecting the housing of electrical components.

[0025] By setting up an insulating bracket, the insulation performance of the connector outside the electrical component housing is improved, and it is also easier to connect to the housing.

[0026] Compared with the prior art, the present invention sets a flexible transition section on the connector, which does not reduce the effective area of ​​the printed circuit board. The mechanical load is absorbed by the deformation of the flexible transition section, thereby reducing the deformation and surface strain of the components. No additional parts are needed, which can reduce costs and reduce product size. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is an assembly structure diagram of connectors in the prior art;

[0029] Figure 2 This is a schematic diagram of the connector structure in Example 1;

[0030] Figure 3 This is an assembly structure diagram of the connector in Example 1;

[0031] Figure 4 yes Figure 3 Enlarged view of a portion of the flexible transition section;

[0032] Figure 5 This is a schematic diagram of the connector structure in Example 2;

[0033] Figure 6 This is a schematic diagram of the connector structure in Example 3. Detailed Implementation

[0034] refer to Figure 1 As shown, in the prior art, the rigidity of the printed circuit board 1b material itself is relatively limited. Under the influence of assembly tolerance and external assembly torque, the printed circuit board 1b will be deformed by the mechanical load on the mating plug stud 1a, resulting in excessive strain in the device area.

[0035] To reduce strain after connecting electronic components to connectors, this invention provides a connector with a flexible transition section. The deformation of this flexible transition section absorbs mechanical loads, thereby reducing component deformation and surface strain. This eliminates the need for additional parts, reducing costs and minimizing product size.

[0036] Example 1

[0037] refer to Figure 2 and Figure 3 As shown, a connector includes:

[0038] A flexible transition section 101 with conductive properties, a first connector 102, and a second connector;

[0039] The first connector 102 and the second connector are respectively connected to both ends of the flexible transition section 101;

[0040] The stiffness of the flexible transition section 101 is less than that of the first joint 102 and / or the second joint 103.

[0041] The stiffness of the flexible transition section 101 can be less than that of both the first joint 102 and the second joint 103, or it can be designed to be less than that of either one as needed. When the stiffness of the flexible transition section 101 is less than that of the first joint 102, it reduces the strain on the components connected to the first joint 102. When the stiffness of the flexible transition section 101 is less than that of the second joint 103, it reduces the strain on the components connected to the second joint 103.

[0042] In this embodiment, the flexible transition section 101, the first connector 102, and the second connector 103 all have conductive properties, ensuring that the connector can achieve electrical connection. Since the stiffness of the flexible transition section 101 is less than that of the first connector 102 and / or the second connector 103, after the component is installed on the first connector 102 or the second connector 103, the flexible transition section 101 can withstand more deformation, thereby reducing the deformation and surface strain of the component.

[0043] In this embodiment, the flexible transition section 101 is a flat plate-like structure. The flexible transition section 101 is designed as a flat plate-like structure, which facilitates bending deformation to absorb mechanical loads.

[0044] To ensure that the flexible transition section 101 has good overcurrent capability and heat dissipation performance, the dimensions of the flexible transition section 101 are optimized, referring to... Figure 4 As shown, specifically: the thickness H of the flexible transition section 101 is 1 to 4 mm; the length L of the flexible transition section 101 is 5 to 15 mm.

[0045] To reduce manufacturing costs, the flexible transition section 101, the first connector 102, and the second connector 103 are processed on the same conductive body; the flexible transition section 101 is processed using a subtractive material process or a mold forming process.

[0046] The flexible transition segment 101, manufactured using subtractive processing or die forming, undergoes abrupt changes in cross-section relative to the first joint 102 and the second joint 103. To avoid stress concentration after deformation, the connection needs to be optimized: both ends of the flexible transition segment 101 are connected to the first joint 102 and the second joint 103 respectively via transition fillets. In this embodiment, refer to... Figure 4 As shown, the radius R of the transition fillet is 0.2 to 1 mm.

[0047] In this embodiment, the first connector 102 is used for the printed circuit board 2, which is located inside the electrical component housing; the second connector 103 is used for connecting the wiring terminals, which are located outside the electrical component housing.

[0048] In this embodiment, the first connector 102 has a mounting surface 1021 for attaching a printed circuit board.

[0049] In this embodiment, reference Figure 4 As shown, the flexible transition section 101 is a flat plate-like structure and is parallel to the mounting plane 1021. This reduces both the torsional stiffness and the vertical stiffness of the printed circuit board.

[0050] In this embodiment, the second connector 103 has a screw connection hole 1031. External terminals, such as brass lugs, are fixed to the second connector by screws inserted into the screw connection hole 1031. Depending on actual needs, the axis of the screw connection hole 1031 can be parallel to or perpendicular to the mounting plane 1021.

[0051] In this embodiment, an insulating support 104 is also included. The insulating support has an axial through hole. The second connector 103 is embedded in the axial through hole, and the flexible transition section 101 and the first connector 102 extend out of the axial through hole.

[0052] In this embodiment, the insulating bracket is further provided with a mounting part 1041 for connecting the electrical component housing 3, and the mounting part 1041 is connected to the electrical component housing 3 by screws.

[0053] By setting up an insulating bracket, the insulation performance of the connector outside the electrical component housing is improved, and it is also easier to connect to the housing.

[0054] Example 2

[0055] In this embodiment, the flexible transition section 101 is made of a porous material with conductive properties. The porous material has a certain degree of elasticity, thus enabling it to undergo elastic deformation to absorb mechanical loads.

[0056] In this embodiment, the flexible transition section 101, the first connector 102, and the second connector 103 are manufactured using different conductive materials. Then, the first connector 102 and the second connector 103 are welded to both ends of the flexible transition section 101. The flexible transition section 101 can be of any shape, as long as the stiffness of the flexible transition section 101 is less than that of the first connector 102 and / or the second connector 103.

[0057] Example 3

[0058] refer to Figure 5 As shown, the flexible transition section 101 is a flat plate structure and is perpendicular to the mounting plane 1021. This reduces the stiffness in the torsional direction while maintaining the vertical stiffness of the printed circuit board, resulting in good support.

[0059] Example 4

[0060] refer to Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the flexible transition section 101 includes two flat plate-like structures.

[0061] The two flat plate-shaped structures can be arranged side by side with intervals, or they can be arranged one above the other. Alternatively, one flat plate-shaped structure can be parallel to the mounting plane 1021 on the first connector 102, while the other flat plate-shaped structure is perpendicular to the mounting plane 1021.

[0062] In addition, those skilled in the art, guided by the teachings of this embodiment, may also set three or more flat plate-like structures as needed. For example, a flat plate-like structure perpendicular to the mounting plane 1021 may be inserted between two parallel flat plate-like structures that are spaced apart to adjust the support.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A connector, characterized in that, include: A flexible transition section with conductive properties, a first connector, and a second connector; The first connector and the second connector are respectively connected to both ends of the flexible transition section; The stiffness of the flexible transition section is less than that of the first joint and / or the second joint.

2. The connector according to claim 1, characterized in that, The flexible transition section is a flat plate-like structure.

3. The connector according to claim 2, characterized in that, The thickness of the flexible transition section is 1–4 mm; the length of the flexible transition section is 5–15 mm.

4. The connector according to any one of claims 1 to 3, characterized in that, The flexible transition section, the first connector, and the second connector are processed on the same conductive body; the flexible transition section is processed by subtractive processing or mold forming process.

5. The connector according to claim 4, characterized in that, The two ends of the flexible transition section are connected to the first connector and the second connector respectively through transition fillets.

6. The connector according to claim 1, characterized in that, The flexible transition section is made of a porous material with electrical conductivity.

7. The connector according to claim 1, characterized in that, The first connector is used to connect to a printed circuit board; the second connector is used to connect to a terminal block.

8. The connector according to claim 7, characterized in that, The first connector has a mounting surface for attaching a printed circuit board.

9. The connector according to claim 8, characterized in that, The flexible transition section is a flat plate-like structure and is parallel to the mounting plane.

10. The connector according to claim 8, characterized in that, The flexible transition section is a flat plate-like structure and is perpendicular to the mounting plane.

11. The connector according to claim 7, characterized in that, The second connector has screw connection holes.

12. The connector according to claim 7 or 11, characterized in that, It also includes an insulating support having an axial through hole, the second connector being embedded in the axial through hole, and the flexible transition section and the first connector extending out of the axial through hole.

13. The connector according to claim 12, characterized in that, The insulating bracket is also provided with a mounting part for connecting the housing of electrical components.

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