CN218513716U

CN218513716U - Conductive terminal suitable for being assembled on printed circuit board and corresponding printed circuit board assembly

Info

Publication number: CN218513716U
Application number: CN202223097921.3U
Authority: CN
Inventors: 袁生地; 黄陈熙; 宋春来; 施晨
Original assignee: Delphi Electrical Centers Shanghai Co Ltd
Current assignee: Delphi Electrical Centers Shanghai Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-21
Anticipated expiration: 2032-11-22

Abstract

The application discloses a conductive terminal suitable for being assembled on a printed circuit board and a corresponding printed circuit board assembly. According to the embodiment of the application, be suitable for and assemble in conductive terminal of printed circuit board, its characterized in that includes the terminal body of being made by sheet metal, the terminal body is including the afterbody that is located the afterbody that connects the portion of inserting and is located the other end that is located one end, the terminal body is still including forming installation department (330) in grafting portion rear end, be equipped with the wing shell fragment structure (335) of circumference distribution on the installation department.

Description

Conductive terminal suitable for being assembled on printed circuit board and corresponding printed circuit board assembly

Technical Field

The present application relates to electrical connection technology, and more particularly, to a conductive terminal structure adapted to make reliable mechanical and electrical contact with a printed circuit board assembly (PCBA assembly).

Background

In many types of electric and hybrid vehicles, terminals mounted to the charging receptacle need to be in contact with the PCBA assembly to enable signal transmission (e.g., for detecting the make and break of a wire, or for temperature control).

Fig. 1 illustrates an exemplary PCBA assembly 100 that includes a printed circuit board 110 on which conductive traces are formed as desired, and a number of terminal through-holes 1201 and 1202 (depending on the size of the terminals, terminal through-holes 1201 and terminal through-holes 1202 can be of different sizes) provided in printed circuit board 110 for insertion of corresponding terminals of a charging receptacle.

Fig. 2 illustrates exemplary

charging receptacle terminals

210 and 220 that can be used with the PCBA assembly 100 of fig. 1. These charging socket terminals may have different diameters according to their functions, for example, the power supply terminal 210 through which the charging current passes may have a larger diameter, and the signal terminal 220 may have a smaller diameter. The charging socket terminal as a whole may be a solid conductor formed by cutting work on a solid metal rod body. The front end of the charging receptacle terminal is thin to meet the mating interface requirements, while the middle or rear end is machined to have a larger diameter to form mounting

portions

215 and 225 to facilitate mounting in the terminal through-holes of the PCBA assembly.

One way to achieve reliable contact between these

charging socket terminals

210 and 220 and the terminal through

holes

1201 and 1202 is by means of the sheet-like elastic piece 140 shown in fig. 1. As shown in fig. 1, one end of the sheet-like spring piece 140 may be mounted near the edge of the terminal through

hole

1201 or 1202 of the PCBA assembly 100, and the other end may be adapted to abut against the mounting portion 215 or 225B of the charging socket terminal having a larger diameter. The attachment of the sheet clips 140 to the PCBA assembly 100 may be by soldering or by assembly of a fish eye structure (fishereye) at one end of the sheet clips.

Fig. 3 is a sectional view showing a state in which the sheet-like elastic piece 140 abuts and is pressed by the mounting portion 215 of the terminal after one charging socket terminal 210 is fitted into the terminal through hole 1201.

Although the techniques represented by fig. 1-3 can achieve effective and reliable contact between the terminals and the PCBA assembly, separate sheet spring components need to be fabricated and assembled, thereby increasing the component cost and process assembly cost of the product and impacting the market competitiveness of the product.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a conductive terminal having a novel configuration that is adapted to be mounted to a printed circuit board, and a corresponding PCBA assembly. The mounting part of the conductive terminal is provided with the wing-shaped elastic sheet structures distributed circumferentially, so that the conductive terminal can be directly assembled and connected with a PCB, and the manufacturing and mounting cost of the sheet-shaped elastic sheet is saved.

According to the first aspect of the application, a conductive terminal suitable for being assembled on a printed circuit board is provided, which is characterized by comprising a terminal body made of a metal sheet, wherein the terminal body comprises a plug part and a tail part, the plug part is positioned at one end, the tail part is positioned at the other end, the terminal body further comprises an installation part formed at the rear end of the plug part, and a wing-shaped elastic sheet structure is arranged on the installation part and distributed in the circumferential direction.

In the above-mentioned scheme of the conductive terminal, as a further implementation manner, the wing-shaped spring plate structure includes a plurality of terminal spring plates, each terminal spring plate is an elastic cantilever, one end of the elastic cantilever is fixedly connected to the body of the mounting portion, and the other end of the elastic cantilever bends toward the radial outside of the mounting portion.

In the above-mentioned scheme of the conductive terminal, as a further implementation manner, the number of the terminal spring pieces is three or more.

In the above-mentioned scheme of the conductive terminal, as a further implementation manner, the plurality of terminal spring pieces are distributed along the circumferential direction of the mounting portion.

In the above-mentioned scheme of the conductive terminal, as a further implementation manner, one end of the elastic cantilever, which is close to the insertion part, is fixedly connected to the body of the mounting part.

In the above-mentioned solution of the conductive terminal, as a further implementation manner, the terminal body is formed by stamping and curling a single metal sheet.

In the above-mentioned scheme of the conductive terminal, as a further implementation manner, the terminal is a power supply terminal or a signal terminal.

According to a first aspect of the present application, there is provided a printed circuit board assembly comprising: one or more conductive terminals as hereinbefore described; the printed circuit board is provided with one or more terminal jacks corresponding to the one or more conductive terminals.

In the above-mentioned printed circuit board assembly, as a further implementation manner, a step structure is formed on an inner wall of the terminal insertion hole, and is used for forming physical interference on the mounting portion of the conductive terminal to prevent the conductive terminal from withdrawing after the conductive terminal is inserted into the terminal insertion hole.

In the above-mentioned solution of the printed circuit board assembly, as a further implementation, the conductive terminal forms a multi-path electrical connection to the printed circuit board through the wing-shaped elastic sheet structure.

Drawings

Figure 1 provides a schematic structural diagram of a PCBA assembly solution as background art of the present patent application.

Fig. 2 presents a schematic view of an exemplary charging receptacle terminal for use with the PCBA assembly scheme of fig. 1.

Fig. 3 is a sectional view showing a state of a terminal through hole after the charging receptacle terminal shown in fig. 2 is mounted in the PCBA assembly shown in fig. 1.

Fig. 4 shows a schematic view and a partially enlarged schematic view of a terminal having a new configuration according to an embodiment of the present application.

Fig. 5 is a schematic view showing a state in which the newly constructed terminal shown in fig. 4 is inserted into a terminal hole of a PCBA assembly.

Fig. 6 shows a sectional view of the newly constructed terminal shown in fig. 4 in a state inserted into a terminal hole of a PCBA assembly.

Detailed Description

In the following description, the present patent application is described with reference to various embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details, or with other alternative and/or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of various embodiments of the present patent application. Similarly, for purposes of explanation, specific numbers, materials, and configurations are set forth in order to provide a thorough understanding of the embodiments of the present patent application. However, the present patent application may be practiced without specific details. Further, it should be understood that the embodiments shown in the figures are illustrative representations and are not necessarily drawn to scale.

Embodiments and variations of the present patent application are further described below with reference to the accompanying drawings.

Fig. 4 shows a schematic view and a partially enlarged schematic view of a terminal 300 having a new configuration according to an embodiment of the present application, fig. 5 shows a schematic view in which the terminal 300 shown in fig. 4 is inserted into a terminal hole of a PCBA assembly 400, and fig. 6 shows a sectional view in a state in which the terminal 300 shown in fig. 4 is inserted into the terminal hole of the PCBA assembly 400.

As shown in fig. 4, the terminal body having the newly constructed terminal 300 includes a plug receiving portion 310 and a tail portion 320. The plug contact portion 310 may be in the shape of a male pin (or may be referred to as a male pin). However, it should be understood that the plug portion may be of other configurations, for example, may be in the shape of a jack (or may be referred to as a female pin).

At the rear end of the pin head section 310 of the terminal 300, the diameter of the terminal body gradually increases, transitioning to a size that fits into the mounting of the terminal aperture of the PCBA assembly. For ease of illustration, the present application refers to the portion of the terminal body of the terminal 300 that is used to fit into a terminal hole of a PCBA assembly as the terminal mounting portion 330.

Tail portions 320 are formed at the rear of the terminal body of terminal 300. The tail 320 is used to form a connection (e.g., crimp, solder) with a wire or to otherwise connect with an appropriate conductive structure. It should be appreciated that a variety of desirable connection techniques may be employed as desired for a development or application, and thus the particular configuration of the tail 320 may not constitute a limitation on the embodiments of the present patent application.

The terminal body of terminal 300 may be formed by stamping and appropriate crimping of a single piece of sheet metal. In conjunction with the cross-sectional view of fig. 6, it can be seen that several terminal domes 335 arranged circumferentially can be formed on the terminal mounting portion 330 by means of a stamping process. Specifically, the terminal spring 335 is cantilevered, and has one end near the plug end 310 connected to the body of the mounting portion 330 and the other end near the tail end 320 bent radially outward of the mounting portion 330. Based on this structural relationship of the terminal dome 335 and the mounting portion, the structure of the terminal dome 335 may be referred to as a wing dome structure.

As can be seen in fig. 5 and 6, a plurality of terminal through-holes 420 are provided on a Printed Circuit Board (PCB) 410, and each terminal through-hole 420 is inserted with one terminal 300. At the same time, terminal dome 335 also provides a direct connection for the conductive paths on the terminal body and PCBA assembly 400, thus eliminating the reliance on a separate sheet dome in the conductive paths.

As shown in fig. 4 and 5, the number of the terminal domes 335 may be four, and the terminal domes are uniformly distributed. However, it is understood that the number of terminal domes 335 may be greater or lesser, and the distribution may be non-uniform. When the number of the terminal domes 335 is three or more, the number of the connection points between the terminal 300 and the PCBA assembly is three or more than two connection points in the solution shown in fig. 1, thereby enhancing the reliability of the product.

This patent application forms the terminal through the stamping process to sheet metal, wherein in the punching press stage, forms the wing shell fragment structure that circumference set up at the terminal installation department in the lump, utilizes the wing structure integrative with the terminal body to realize with the extrusion of terminal mounting hole and prevent that the terminal from moving back the physics of position and interfering, and then has realized reliable terminal installation location. The present patent application reduces the number of parts required for the terminal and PCBA connection scheme and increases the connection reliability of the terminal and PCBA.

Having thus described the basic concept, it should be apparent to those skilled in the art that the foregoing disclosure is by way of example only and is not to be construed as limiting the present patent application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such alterations, modifications, and improvements are intended to be suggested in this patent application and are intended to be within the spirit and scope of the embodiments of the application.

Claims

1. The utility model provides a be suitable for and assemble in conductive terminal of printed circuit board, characterized in that, includes the terminal body of being made by the sheet metal, the terminal body is including the afterbody that is located the connection portion of one end and is located the other end, the terminal body is still including forming in the installation department (330) of connection portion rear end, be equipped with wing shell fragment structure (335) that circumference distributes on the installation department.

2. The conductive terminal of claim 1, wherein the wing spring structure includes a plurality of terminal springs, each terminal spring being an elastic cantilever having one end fixedly connected to the body of the mounting portion and the other end bent radially outward of the mounting portion.

3. An electrically conductive terminal as claimed in claim 2, wherein the number of the terminal blades is three or more.

4. The conductive terminal of claim 2, wherein the plurality of terminal blades are circumferentially distributed about the mounting portion.

5. An electrically conductive terminal as claimed in claim 2, wherein one end of the resilient cantilever arm adjacent the mating part is fixedly connected to the body of the mounting part.

6. An electrically conductive terminal as claimed in claim 1, wherein the terminal body is stamped and crimped from a single piece of sheet metal.

7. An electrically conductive terminal as claimed in claim 1, wherein the terminal is a power supply terminal or a signal terminal.

8. A printed circuit board assembly comprising:

one or more electrically conductive terminals as claimed in any one of claims 1 to 7;

a printed circuit board (410) having one or more terminal receptacles (420) disposed thereon or corresponding to the one or more conductive terminals.

9. The printed circuit board assembly of claim 8, wherein a step structure is formed on an inner wall of said terminal receptacle for physically interfering with said mounting portion of said conductive terminal to prevent said conductive terminal from backing out when said conductive terminal is inserted into said terminal receptacle.

10. The printed circuit board assembly of claim 8, wherein said conductive terminals form multiple electrical connections to said printed circuit board through said wing spring structures (335).