Spring supporting type power module PIN structure

Abstract

The utility model discloses a spring support type power module PIN structure, which relates to the technical field of PIN structures, and comprises a main rod, a guide rod, an elastic frame, an elastic piece and a PIN base, one end of the elastic frame is connected with one end of the main rod, the other end of the elastic frame is connected with one end of the guide rod, and the other end of the guide rod is connected with the other end of the PIN base. The other end of the main rod is provided with the PIN base, and the elastic frame is internally provided with the elastic piece. According to the utility model, the PINs are clamped in the PCB hole sites through the elastic frame, welding is not needed, the operation is convenient and fast, efficient direct insertion is realized, and the working efficiency is improved; compared with an existing PIN structure, the PIN structure has the advantages that the PIN can be in closer contact with the inner wall of the PCB hole site, the conductivity and the signal transmission capacity can be enhanced, the number of times of repeated assembly is increased, the service life is prolonged, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PIN needle structures, in particular to a spring-supported power module PIN needle structure. Background Art

[0002] A connector is a component that connects two active devices, transmitting current or signals. With the rapid growth of the consumer electronics, automotive electronics, and communications terminal markets, global connector production has also increased significantly. A PIN is a metal material used in connectors to conduct electrical signals. As a component of power products, a PIN is used to output product signals. One end connects to the internal metal layer of the product, and the other end connects to the external circuit.

[0003] Currently, the most common power module PIN pins on the market can be divided into Press-Fit PIN (press-fit pin) and Solder PIN (solder pin). Among them, Solder PIN needs to be soldered when installed on the PCB. During soldering, problems such as cold solder joints, voids, and tin slag residue may occur. These problems will lead to poor contact and increase the difficulty of detection for workers, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a spring-supported power module PIN needle structure for solving the above-mentioned technical problems.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A spring-supported power module PIN pin structure includes a main rod, a guide rod, an elastic frame, an elastic member, and a PIN pin base. One end of the elastic frame is connected to one end of the main rod, and the other end of the elastic frame is connected to one end of the guide rod. The PIN pin base is provided at the other end of the main rod, and the elastic member is provided inside the elastic frame.

[0007] Preferably, the elastic frame is elliptical in shape as a whole.

[0008] Preferably, positioning grooves are provided on the inner walls on both sides of the elastic frame, and the two ends of the elastic member are arranged in the two positioning grooves.

[0009] Preferably, the elastic member is a spring.

[0010] Preferably, the other end of the guide rod is provided with a chamfer.

[0011] Preferably, the main rod, the elastic frame, the guide rod and the PIN needle base are integrally formed.

[0012] Preferably, the connection between the main rod and the elastic frame adopts an arc-shaped transition, and the connection between the guide rod and the elastic frame adopts an arc-shaped transition.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The PIN pin in the utility model is clamped in the PCB hole by an elastic frame, without the need for welding, and is easy to operate and can be inserted directly, thereby improving work efficiency. Compared with the existing PIN pin structure, the PIN pin in the utility model can contact the inner wall of the PCB hole more closely, which can enhance the conductivity and signal transmission capability, increase the number of repeated assembly and connection, increase the service life, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the PIN structure of the spring-supported power module in the present utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a diagram of the use state of the spring-supported power module PIN needle structure in the utility model.

[0018] In the figure: 1. Main rod; 2. Guide rod; 3. Elastic frame; 4. Elastic part; 5. PIN pin base; 6. PCB board; 7. PCB hole; 8. Positioning groove; 9. Chamfer. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] Figure 1 This is a three-dimensional diagram of the PIN structure of the spring-supported power module in the present utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a diagram of the use status of the spring-supported power module PIN needle structure in this utility model. Figures 1 to 3 The figure shows a preferred embodiment of a spring-supported power module PIN pin structure, comprising a main rod 1, a guide rod 2, an elastic frame 3, an elastic member 4, and a PIN pin base 5. One end of the elastic frame 3 is connected to one end of the main rod 1, and the other end of the elastic frame 3 is connected to one end of the guide rod 2. The PIN pin base 5 is provided at the other end of the main rod 1, and the elastic member 4 is disposed within the elastic frame 3. In this embodiment, the main rod 1 and the guide rod 2 are both rectangular in cross-section, and the overall length of the PIN pin structure is 15 mm. The guide rod 2 serves as a guide, facilitating the PIN pin structure's entry into a PCB hole 7 on a PCN board. Once the elastic frame 3 enters the PCB hole 7, the outer walls of the elastic frame 3 can abut against the inner walls of the PCB hole 7. In conjunction with the arrangement of the elastic member 4, the outer walls of the elastic frame 3 can closely contact the inner walls of the PCB hole 7, allowing the elastic frame 3 to be locked within the PCB hole 7 and achieve connection with the PCB board 6.

[0023] In this embodiment, when in use, the guide rod 2 can be passed through the PCB hole 7, and then the PIN needle base 5 can be pressed. At this time, the inner wall of the PCB hole 7 will squeeze the outer wall of the elastic frame 3, causing the elastic frame 3 to deform, thereby allowing the elastic frame 3 to enter the PCB hole 7. At this time, under the action of the elastic member 4, the elastic frame 3 can be snapped into the PCB hole 7, thereby realizing the installation of the PIN needle structure.

[0024] In this embodiment, the elastic frame 3 has a certain degree of elastic deformation ability, which can effectively release the stress generated during press-fitting and prevent the PIN from being bent or damaged due to excessive stress.

[0025] Furthermore, as a preferred embodiment, the elastic frame 3 is configured to be elliptical as a whole.

[0026] Furthermore, as a preferred embodiment, positioning grooves 8 are formed on the inner walls of both sides of the elastic frame 3, and the two ends of the elastic member 4 are arranged in the two positioning grooves 8. The two ends of the elastic member 4 can be clamped in the two positioning grooves 8 or welded in the two positioning grooves 8, and the specific selection can be made according to needs.

[0027] Furthermore, as a preferred embodiment, the elastic member 4 is a spring. The provision of the elastic member 4 prevents stress relaxation in the elastic frame 3 in the middle of the PIN structure after repeated use, which can lead to poor contact. This allows for a tighter connection with the PCB 6, improving contact and stability. To better support the elastic frame 3, the spring is made of a hard metal material with a wire diameter of 0.1 mm, a spring height of 2 mm, and a thread pitch of 0.2 mm. The PIN base 5 has a diameter of 2.5 mm.

[0028] Furthermore, as a preferred embodiment, the other end of the guide rod 2 is provided with a chamfer 9 to facilitate the guiding function and facilitate the guide rod 2 to pass through the PCB hole 7.

[0029] Furthermore, as a preferred embodiment, the main rod 1, the elastic frame 3, the guide rod 2 and the PIN needle base 5 are integrally formed. Specifically, the main rod 1 and the elastic frame 3 and the PIN needle base 5 can be integrally formed or welded, and the elastic frame 3 and the guide rod 2 can be integrally formed or welded.

[0030] Furthermore, as a preferred embodiment, the connection between the main rod 1 and the elastic frame 3 adopts an arc transition, and the connection between the guide rod 2 and the elastic frame 3 adopts an arc transition, which facilitates the elastic frame 3 to enter the PCB hole 7.

[0031] In this embodiment, since the PIN needle structure needs to have good conductivity and wear resistance, the material selected for the main rod 1, guide rod 2 and elastic frame 3 is copper, and the surface is gold-plated. The gold layer has good conductivity, chemical stability and corrosion resistance.

[0032] In this embodiment, in a natural uncompressed state, the outer left and right distance of the elastic frame 3 is 2.6 mm. When in contact with the PCB hole 7, the elastic frame 3 is deformed, and the outer left and right distance is 2 mm.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A spring-supported power module PIN pin structure, characterized in that: It includes a main rod, a guide rod, an elastic frame, an elastic part and a PIN needle base. One end of the elastic frame is connected to one end of the main rod, and the other end of the elastic frame is connected to one end of the guide rod. The PIN needle base is provided at the other end of the main rod, and the elastic part is provided inside the elastic frame.

2. The spring-supported power module PIN structure according to claim 1, wherein: The elastic frame is arranged in an oval shape as a whole.

3. The spring-supported power module PIN structure according to claim 1, wherein: Positioning grooves are provided on the inner walls of both sides of the elastic frame, and the two ends of the elastic member are arranged in the two positioning grooves.

4. The spring-supported power module PIN structure according to claim 1, wherein: The elastic member is a spring.

5. The spring-supported power module PIN structure according to claim 1, wherein: The other end of the guide rod is provided with a chamfer.

6. The spring-supported power module PIN structure according to claim 1, wherein: The main rod, the elastic frame, the guide rod and the PIN needle base are integrally formed.

7. The spring-supported power module PIN structure according to claim 1, wherein: The connection between the main rod and the elastic frame adopts an arc-shaped transition, and the connection between the guide rod and the elastic frame adopts an arc-shaped transition.

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