Eccentric Pogo pin connector assembly

Abstract

The utility model relates to the connector field, and discloses an eccentric Pogo pin connector assembly comprising a needle tube, the middle of the needle tube is vertically provided with a cavity groove, the upper part of the cavity groove is slidably connected with a needle head, the needle head is internally provided with a needle cavity, the cavity groove is internally provided with a spring, the upper end of the spring is arranged in the needle cavity, and the lower part of the spring is eccentrically arranged. The needle head comprises a compression head slidably connected with the upper portion of the cavity groove, the compression head is provided with a pressing head, the compression head and the pressing head are of an integrated structure, an inward-contracting slope surface is arranged on the inner side of the lower portion of the compression head, the inner wall of the cavity groove is of a smooth surface structure, and an arc surface is formed by the pressing head and the upper portion of the needle tube in the working state. The surfaces of the needle cavity and the cavity groove are provided with nickel-plated layers, and the outermost layers of the needle head and the needle tube are provided with gold-plated layers, so that the low-contact-resistance fast charging application of the Pogo pin connector in a short and small size can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of connector components, in particular to an eccentric Pogopin connector component. Background Technique

[0002] Pogopin is a precision connector applied to peripheral electronic products, generally applied to products such as mobile phone tablet devices, portable charging devices, wearable smart products, smart home, medical, aerospace, etc.

[0003] In the application requirements of smart wearables and fast charging docks, due to product space limitations, Pogopin needs to be designed very short. When designing the structure, the hollow type is the first option, that is, when in the working state, the spring can stretch into the needle head. Generally, there are two types of Pogopin: the left side with a limit groove type or the right side with a common non-limit groove type. The spring deforms irregularly to ensure good contact between the needle head and the needle tube. At this time, it is suitable for non-fast charging products. However, when the product has the application requirement of fast charging with low contact resistance, the existing hollow type Pogopin structure under such extreme application conditions cannot meet the requirements. Therefore, we propose an eccentric Pogopin connector component. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an eccentric Pogopin connector component, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: The utility model discloses an eccentric Pogopin connector component, including a needle tube. A cavity groove is vertically opened in the middle of the needle tube. A needle head is slidably connected to the upper part of the cavity groove. A needle cavity is arranged inside the needle head. A spring is arranged in the cavity groove. The upper end of the spring is arranged in the needle cavity. The lower part of the spring is eccentrically arranged, and the lower part of the spring is connected to the lower part of the cavity groove.

[0006] As a preferred scheme, the needle head includes a compression head slidably connected to the upper part of the cavity groove. An operating head is arranged on the compression head, and the compression head and the operating head are integrally structured.

[0007] As a preferred scheme, an inwardly sloping surface is arranged on the inner side below the compression head.

[0008] As a preferred scheme, the inner wall of the cavity groove is arranged with a smooth surface structure.

[0009] As a preferred scheme, an arc surface is formed between the operating head in the working state and the upper part of the needle tube.

[0010] As a preferred solution, a nickel plating layer is provided on the surfaces of the needle cavity and the cavity groove, and a gold plating layer is provided on the outermost layers of the needle tip and the needle tube.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] Through the structural arrangement of the present utility model, compared with the existing Pogopin, the spring is made into an eccentric shape to actively increase the lateral force of the spring in contact with the cavity groove. Then, according to the remaining space in the working state, the diameter of the transition region of the eccentric spring is designed. Finally, according to the simulation results, the limit size of the inward-sloping surface on the needle tip is designed to ensure that the compression head has no chance to scratch the spring and cause the contact resistance to jump at the limit compression position, ultimately realizing the low-contact-resistance fast charging application in a small size. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0014] Figure 2 is a sectional view of the structure of the present utility model;

[0015] Figure 3 is a front sectional view of the present utility model in the free state;

[0016] Figure 4 is a front sectional view of the present utility model in the working state.

[0017] In the figure: 1. Needle tube; 2. Cavity groove; 3. Needle tip; 4. Needle cavity; 5. Spring; 6. Compression head; 7. Pressing head; 8. Inward-sloping surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4An eccentric Pogopin connector assembly according to this embodiment includes a needle tube 1. A cavity groove 2 is vertically formed in the middle of the needle tube 1. A needle head 3 is slidably connected to the upper part of the cavity groove 2. A needle cavity 4 is arranged inside the needle head 3. A spring 5 is arranged in the cavity groove 2. The upper end of the spring 5 is arranged in the needle cavity 4. The lower part of the spring 5 is eccentrically arranged and connected to the lower part of the cavity groove 2. By making the spring 5 into an eccentric shape, the lateral force of the spring 5 in contact with the cavity groove 2 is actively increased. Then, according to the remaining space in the working state, the diameter of the transition area of the eccentric spring 5 is designed. Finally, according to the simulation results, the limit size of the inwardly tapered surface 8 on the needle head 3 is designed to ensure that the compression head 6 has no chance of scratching the spring 5 at the limit compression position, resulting in a jump in the contact resistance value, and ultimately realizing low-contact-resistance fast charging applications in a small size.

[0020] As Figure 1 , 2 shown, the needle head 3 includes a compression head 6 slidably connected to the upper part of the cavity groove 2. A pressing head 7 is arranged on the compression head 6. The compression head 6 and the pressing head 7 are integrally structured to stably compress the spring 5.

[0021] As Figure 2 , 3 , 4 shown, an inwardly tapered surface 8 is arranged on the inner side below the compression head 6 to prevent the spring 5 from being scratched excessively by lateral displacement, affecting the contact resistance value.

[0022] As Figure 3 , 4 shown, the inner wall of the cavity groove 2 is arranged as a smooth surface structure to reduce the friction force between the needle head 3 and the cavity groove 2, making the pressing process of the pressing head 7 smoother.

[0023] As Figure 4 shown, an arc surface is formed between the pressing head 7 and the upper part of the needle tube 1 in the working state. In the working state, it avoids excessive extrusion of the needle head 3, resulting in too large a lateral force of the spring 5, causing the spring 5 to be scratched excessively by lateral displacement, affecting the contact resistance value.

[0024] As Figure 1 , 2 shown, nickel plating layers are arranged on the surfaces of the needle cavity 4 and the cavity groove 2 to ensure wear resistance and oxidation resistance. Gold plating layers are arranged on the outermost layers of the needle head 3 and the needle tube 1, which can significantly reduce the contact resistance of the product.

[0025] In the specific implementation of this embodiment, through the structural arrangement of this utility model, compared with the existing Pogopin, the spring 5 is made into an eccentric shape to actively increase the lateral force of the spring 5 in contact with the cavity groove 2. Then, according to the remaining space in the working state, the diameter of the transition region of the eccentric spring 5 is designed. Finally, according to the simulation results, the limit size of the inward-sloping surface 8 on the needle 3 is designed to ensure that the compression head 6 has no chance of scratching the spring 5 at the limit compression position, resulting in a jump in the contact resistance value, and ultimately realizing the low-contact-resistance fast charging application in a small size.

[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An eccentric Pogopin connector assembly, comprising a needle tube (1), characterized in that: A cavity groove (2) is vertically formed in the middle of the syringe barrel (1). A needle head (3) is slidably connected to the upper part of the cavity groove (2). A needle cavity (4) is arranged inside the needle head (3). A spring (5) is arranged in the cavity groove (2). The upper end of the spring (5) is arranged in the needle cavity (4). The lower part of the spring (5) is eccentrically arranged and connected to the lower part of the cavity groove (2).

2. The eccentric Pogopin connector assembly according to claim 1, wherein: The needle head (3) includes a compression head (6) slidably connected to the upper part of the cavity groove (2). A pressing head (7) is arranged on the compression head (6). The compression head (6) and the pressing head (7) are integrally structured.

3. The eccentric Pogopin connector assembly according to claim 2, wherein: An inwardly converging slope surface (8) is arranged on the inner side below the compression head (6).

4. The eccentric Pogopin connector assembly according to claim 1, wherein: The inner wall of the cavity groove (2) is arranged with a smooth surface structure.

5. The eccentric Pogopin connector assembly according to claim 3, wherein: The pressing head (7) in the working state forms an arc surface with the upper part of the syringe barrel (1).

6. The eccentric Pogopin connector assembly according to claim 1, wherein: Nickel plating layers are arranged on the surfaces of the needle cavity (4) and the cavity groove (2). Gold plating layers are arranged on the outermost layers of the needle head (3) and the syringe barrel (1).

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