A double spring connector structure

Abstract

The present invention discloses a dual-spring connector structure. The structure is an integrated structure comprising a contact portion, which is a flat plate structure; an elastic portion, disposed in the space below the contact portion, comprising independent first and second submodules. The first and second submodules are S-shaped elastic structures that diagonally support the contact portion; the bottom of the elastic portion is a flat plate structure forming a welding portion; and a protective portion, which comprises independent third and fourth submodules. The third and fourth submodules are arranged diagonally to form two right-angled protective structures that block the outside of the elastic portion. The third submodule is integrally connected to the first submodule, and the fourth submodule is integrally connected to the second submodule. The present invention has a good elastic effect, a stable contact portion, no rubbing problems, and an over-compression limiting function, thereby extending the service life.

Description

Technical field

[0001] The present invention belongs to the technical field of connectors, and in particular relates to a double-spring connector structure. [Background Technology]

[0002] With technological advancements and economic development, electronic devices such as mobile phones, tablets, and headphones have become indispensable to people's lives. These digital products have become widely integrated into people's daily lives, providing great convenience and enriching their lives. Shrapnel is one of the essential components of electronic devices, and one of them is a POGO pin (spring-loaded pin). POGO pins are commonly used for electrical connections in electronic products such as mobile phones and watches, transmitting electrical signals.

[0003] The traditional POGO PIN consists of a syringe, a needle tube and a spring. During operation, the contact connection between the syringe and the needle tube plays the main role in transmitting electrical signals. The spring is used to provide elastic force between the syringe and the needle tube, and can also transmit a small amount of current. In the assembly method of the POGO PIN connector, there is a gap between the syringe and the needle tube. When the electrical connector vibrates, it is easy to cause a momentary interruption in charging. At this time, the syringe and the needle tube are separated, and all the transmitted current is transmitted through the spring, which can easily cause the spring to carbonize, thereby losing its elasticity and causing the electrical connector to fail.

[0004] With the continuous research and development and innovation of charging terminal structures, integrated spring structures have gradually appeared on the market. For example, in the prior art, patent publication number CN216648664U discloses an electrical connector and electronic device. Although it overcomes the technical defects of the traditional POGO PIN structure, its contact bullet still adopts a cylindrical structure, and a protective plate is set on the top. The protective plate is provided with a limit hole for the contact bullet to pass through. Because there is an elastic support structure under the contact probe, the contact bullet also has the problem of rubbing against the limit hole during the plug-in process, which can easily cause wear on the contact bullet and affect the contact performance of the contact bullet. In this connector, the elastic part is provided with a protective part at the top to limit the elastic part's upward rebound height, but there is no limit function to limit the elastic part's downward pressure height. There is a risk that the elastic part will be over-pressed and unable to rebound to the set height normally.

[0005] Therefore, it is necessary to provide a new double-spring connector structure to solve the above technical problems. [Summary of the invention]

[0006] The main purpose of the present invention is to provide a double-spring connector structure with good elastic effect, stable contact part, no collision problem, and an over-compression limiting function, thereby extending the service life.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions: a double spring type connector structure, which is an integrated structure, comprising

[0008] a contact portion having a flat plate structure;

[0009] The elastic portion is disposed in the space below the contact portion and includes an independent first submodule and a second submodule. The first submodule and the second submodule are S-shaped elastic structures and support the contact portion diagonally. The bottom of the elastic portion is a flat plate structure forming a welding portion.

[0010] The protective part includes an independent third submodule and a fourth submodule. The third submodule and the fourth submodule are diagonally distributed to form two right-angle protective structures, blocking the outside of the elastic part; the third submodule is connected to the first submodule as a whole, and the fourth submodule is connected to the second submodule as a whole.

[0011] Furthermore, a protrusion is provided at the center of the upper surface of the contact portion.

[0012] Furthermore, the first submodule has the same structure as the second submodule and has an S-shaped winding structure as a whole, which includes a plurality of planar portions and a plurality of U-shaped connecting portions. The planar portions are arranged in parallel at equal intervals in the space below the contact portion, and the U-shaped connecting portions are arranged at the ends of the two adjacent planar portions above and below and connect them into one; the two adjacent U-shaped connecting portions are relatively distributed on the front and rear sides.

[0013] Furthermore, a first connecting portion is provided on the top of the first submodule, and the first connecting portion is adjacent to the first point of the contact portion; a second connecting portion is provided on the top of the second submodule, and the second connecting portion is adjacent to the second point of the contact portion; the first point and the second point are diagonally distributed on opposite sides of the contact portion.

[0014] Furthermore, the first connection is a C-shaped structure, with two ends thereof adjacent to the left front portion of the contact portion and the left front portion of the uppermost plane portion respectively;

[0015] The second connecting portion is a C-shaped structure, with two ends thereof respectively adjacent to the right rear portion of the contact portion and the right rear portion of the uppermost plane portion.

[0016] Furthermore, in the first sub-module, the front edge of the welding portion is adjacent to the U-shaped connecting portion and the rear edge is adjacent to the root of the third sub-module; the front section of the planar portion of the top layer has a widened portion; the front sections of the planar portion of the middle layer and the bottom layer have a widened portion; the left edge of the widened portion is close to the left surface of the third sub-module.

[0017] Furthermore, the front edge of the U-shaped connecting portion located on the front side is flush with the front edges of the uppermost plane portion and the contact portion.

[0018] Furthermore, in the second submodule, the rear edge of the welding portion is adjacent to the U-shaped connecting portion and the front edge is adjacent to the root of the fourth submodule; the rear section of the topmost planar portion has a widened portion; the rear sections of the middle and bottom planar portions have a widened portion; and the right side edge of the widened portion is close to the right side surface of the fourth submodule.

[0019] Furthermore, the rear edge of the U-shaped connecting portion located on the rear side is flush with the rear edges of the uppermost plane portion and the contact portion.

[0020] Furthermore, the front edge of the contact portion extends to above the fourth submodule; the rear edge extends to above the third submodule; and the top of the third submodule and the fourth submodule form a limiting blocking surface for the contact portion to float downward.

[0021] Furthermore, the third submodule has the same structure as the fourth submodule and includes a first protective plate erected upward from the front or rear edge of the welding portion and a second protective plate formed by vertically folding from the left or right edge of the first protective plate; the first protective plate and the second protective plate form a right-angle protective structure, and the two right-angle protective structures constitute a diagonal protective portion.

[0022] Compared with the prior art, the beneficial effect of the double-spring connector structure of the present invention is that the elastic part and the protective part are divided into two independent sub-modules, each forming a corresponding S-shaped elastic support structure and a protective structure. The two S-shaped elastic support structures make full use of the space below the contact part to form an elastic structure with sufficiently large elastic supporting force, thereby improving the elastic supporting force within the same height space; at the same time, the two S-shaped elastic support structures support the contact part in the form of diagonal support, thereby improving the stability of the bottom support of the contact part, effectively preventing the horizontal shaking of the contact part, and ensuring the stability of the electrical connection of the contact part; this structure also has an ingenious design, that is, the S-shaped detour in the elastic part detours back and forth in the front-back direction, while the connection part connected to the contact part is arranged on the left and right sides of the uppermost plane part. On both sides, the antagonistic relative forces of the two sub-modules are used to maintain the stability of the contact part, so that the contact part will not shake in the front-to-back direction or in the left-to-right direction; the two first front and rear protective plates provide effective support to the front and rear edges of the contact part, limit the height of the contact part floating downward, effectively prevent the contact part from being over-pressed, and thus effectively prevent the elastic part from failing due to deformation due to over-pressure; the connector designed in this scheme has a structural feature that is approximately cubic as a whole, and is a centrally symmetrical structure with high overall structural strength, good elastic effect and long service life. Through structural optimization design, while improving structural performance, it also simplifies the process technology, laying the foundation for the production of connectors with an integrated structure, and only requires bending and extrusion processes, and the process method is relatively simple, which reduces the difficulty of the process.

Brief Description of the Drawings

[0023] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the exploded structure of an embodiment of the present invention after removing the contact portion;

[0025] The numbers in the figure represent:

[0026] 100-Double spring connector structure;

[0027] 1-contact part, 11-protrusion, 12-first position, 13-second position;

[0028] 2-elastic portion, 21-first submodule, 211-first connecting portion, 212-planar portion, 2121-widening portion, 2122-reduced width portion, 213-U-shaped connecting portion, 214-welding portion, 22-second submodule, 221-second connecting portion;

[0029] 3-protection part, 31-third submodule, 311-first protection plate, 312-second protection plate, 313-insertion welding part 214, 32-fourth submodule. [Specific implementation method]

[0030] Example 1:

[0031] Please refer to Figure 1-Figure 2 This embodiment is a double-spring connector structure 100, which is an integrated structure formed by multiple extrusion and bending of a metal sheet structure with a set shape. It includes a contact portion 1 with a flat structure, an elastic portion 2 supporting the contact portion 1, and a protective portion 3 protecting the side of the elastic portion 2.

[0032] The contact portion 1 is a flat plate with a raised portion 11 at the center of its upper surface. To prevent poor contact due to insufficient flatness or deformation of the contact portion 1, the raised portion 11 improves the contact reliability between the contact portion 1 and the external terminal. The contact portion 1 is elevated above the top of the protective portion 3 to create a floating space.

[0033] In order to improve the support stability of the contact portion 1, prevent the contact portion 1 from being deflected under pressure, and ensure the effective elastic effect of the elastic portion 2, this embodiment optimizes the design of the elastic portion 2. Specifically, first, the elastic portion 2 includes two independent submodules, namely a first submodule 21 and a second submodule 22. The top of the first submodule 21 is provided with a first connecting portion 211, which is adjacent to the first portion 12 of the contact portion 1. The top of the second submodule 22 is provided with a second connecting portion 221, which is adjacent to the second portion 13 of the contact portion 1. The first portion 12 and the second portion 13 are diagonally distributed on opposite sides of the contact portion 1. By designing an angled double support structure for the contact portion 1, the support stability of the contact portion 1 can be effectively improved, ensuring that the contact portion 1 can still maintain a horizontal state and elastically float downward after being compressed.

[0034] In this embodiment, the first location 12 is located at the right rear portion of the contact portion 1, and the second location 13 is located at the left front portion of the contact portion 1. In other embodiments, the second location 13 may also be located at two other diagonally opposite sides of the contact portion 1.

[0035] The first submodule 21 and the second submodule 22 share the same structure, forming an overall S-shaped, meandering structure. They comprise several planar portions 212 and several U-shaped connecting portions 213. The planar portions 212 are arranged parallel and at equal intervals below the contact portion 1. The U-shaped connecting portions 213 are located at the ends of two adjacent planar portions 212, connecting them into a single piece. The two adjacent U-shaped connecting portions 213 are located opposite each other on the front and back sides. The planar portion 212 at the bottom of the elastic portion 2 forms a soldering portion 214 for soldering to a PCB for electrical connection.

[0036] The protective part 3 also includes two independent sub-modules, namely the third sub-module 31 and the fourth sub-module 32. The third sub-module 31 is connected to the first sub-module 21 as a whole, and the fourth sub-module 32 is connected to the second sub-module 22 as a whole. The third sub-module 31 and the fourth sub-module 32 are arranged in the diagonal area of the connector to form two diagonal protective parts.

[0037] In the first submodule 21, the front edge of the welding portion 214 is adjacent to the U-shaped connecting portion 213 and the rear edge is adjacent to the root of the protective portion 3 (specifically, the third submodule 31). Except for the topmost planar portion 212, the front sections of the other planar portions 212 have widening portions 2121, that is, the left and right widths of the widening portions 2121 corresponding to the front sections are greater than the left and right widths of the rear sections. The left edge of the widening portion 2121 does not exceed the left side surface of the third submodule 31. In this embodiment, the left edge of the widening portion 2121 is flush with the left side surface of the third submodule 31. The front section of the topmost planar portion 212 has a reduced width portion 2122, that is, the left and right widths of the reduced width portion 2122 corresponding to the front section are less than the left and right widths of the rear section. The design of the narrowing portion 2122 ensures that the leftmost position of the first connecting portion 211 does not protrude from the left edge of the corresponding lower planar portion 212. In this embodiment, the leftmost side of the first connecting portion 211 is flush with the left edge of the corresponding lower planar portion 212. Through the structural design of the widening portion 2121 and the narrowing portion 2122, the overall connector structure is presented as a three-dimensional rectangular structure, providing the best and most reliable elastic support force and structural strength within the same volume range. The front edge of the U-shaped connecting portion 213 located on the front side is flush with the front edge of the topmost planar portion 212 and the contact portion 1. The front edge of the contact portion 1 extends to the top of the fourth submodule 32, so that when the contact portion 1 floats downward, the fourth submodule 32 below can provide a blocking surface that limits the downward pressure height.

[0038] Similarly, in the second submodule 22, the rear edge of the welding portion 214 is adjacent to the U-shaped connecting portion 213 and the front edge is adjacent to the root of the protective portion 3 (specifically, the fourth submodule 32). Except for the topmost planar portion 212, the rear sections of the other planar portions 212 have widening portions 2121, that is, the left and right widths of the widening portions 2121 corresponding to the rear sections are greater than the left and right widths of the front sections. The right edge of the widening portion 2121 does not exceed the right side surface of the fourth submodule 32. In this embodiment, the right edge of the widening portion 2121 is flush with the right side surface of the fourth submodule 32. The rear section of the topmost planar portion 212 has a reduced width portion 2122, that is, the left and right widths of the reduced width portion 2122 corresponding to the rear section are less than the left and right widths of the front section. The design of the narrowing portion 2122 ensures that the rightmost position of the second connecting portion 221 does not protrude from the right edge of the corresponding lower planar portion 212. In this embodiment, the rightmost side of the second connecting portion 221 is flush with the right edge of the corresponding lower planar portion 212. Through the structural design of the widening portion 2121 and the narrowing portion 2122, the overall connector structure is presented as a three-dimensional rectangular structure, providing the best and most reliable elastic support force and structural strength within the same volume range. The rear edge of the U-shaped connecting portion 213 located on the rear side is flush with the rear edge of the topmost planar portion 212 and the contact portion 1. The rear edge of the contact portion 1 extends to the top of the third submodule 31, so that when the contact portion 1 floats downward, the third submodule 31 below can provide a blocking surface that limits the downward pressure height.

[0039] The third submodule 31 and the fourth submodule 32 have the same structure and include a first protective plate 311 extending upward from the front or rear edge of the weld portion 214, and a second protective plate 312 folded vertically from the left or right edge of the first protective plate 311. The first protective plate 311 and the second protective plate 312 form a right-angled protective structure, and the two right-angled protective structures constitute the diagonal protective portion.

[0040] In order to improve the welding strength of the connector on the PCB, a plug-in welding portion 313 is formed at the bottom of the second protection plate 312 and is plugged into the PCB.

[0041] When this embodiment is in use, the two welding parts 214 at the bottom of the elastic part 2 are welded to the PCB board, and at the same time, the two plug-in welding parts 313 at the bottom of the protective part 3 are also welded to the PCB board; when the contact part 1 is connected to the external terminal, it will be subjected to a downward pressure force. Under the elastic support of the diagonal double S-shaped elastic support structure formed by the first submodule 21 and the second submodule 22, an effective, sufficiently large and reliable reverse support force is provided to the contact part 1. Even if the connector as a whole is shaken or swung, the contact part 1 can maintain a reliable connection without disconnection; when subjected to excessive downward pressure, the front and rear edges of the contact part 1 are effectively supported by the two first protective plates 311 at the front and rear, limiting the height of the contact part 1 floating downward, effectively preventing the contact part 1 from being excessively pressed downward, and further effectively preventing the elastic part 2 from failing due to deformation due to overpressure.

[0042] In this embodiment, the first connecting portion 211 and the second connecting portion 221 are arranged on the left and right sides of the contact portion 1. In other embodiments, they can also be arranged on the front and rear sides of the contact portion 1. However, if they are arranged on the front and rear sides, the front and rear widths of the contact portion 1 will be reduced due to the connection arc occupied by the connecting portion. If the overvoltage protection function of the protective portion 3 on the contact portion 1 is to be retained at the same time, the front and rear sides of the contact portion 1 need to be partially extended outward, and other sections of the front and rear sides need to be connected to the connecting portion in an arc. Therefore, a fault design will appear on the front and rear sides of the contact portion 1, which destroys the overall structural and structural strength of the contact portion 1. Since the strength of the part where the contact portion 1 cooperates with the protective portion 3 is weakened, when subjected to excessive downward pressure, the corresponding part of the contact portion 1 is easily squeezed and folded upward and deformed under the reverse support of the protective portion 3, resulting in failure of the overpressure protection function.

[0043] In order to realize the diagonal double S-shaped elastic support structure, this embodiment takes into account the process technology of the connector, and divides the elastic part 2 and the protective part 3 into two independent sub-modules, each forming a corresponding S-shaped elastic support structure and protective structure. The two S-shaped elastic support structures make full use of the space below the contact part 1 to form an elastic structure with sufficiently large elastic support force, thereby improving the elastic support force within the same height space. At the same time, the two S-shaped elastic support structures support the contact part 1 in the form of diagonal support, thereby improving the stability of the bottom support of the contact part 1, effectively preventing the horizontal shaking of the contact part 1, and ensuring the stability of the electrical connection of the contact part 1. This structure also has an ingenious design. The S-shaped detour in the elastic part 2 detours back and forth in the front-to-back direction, while the connection part connected to the contact part 1 is arranged on the uppermost plane part 21 2, the stability of the contact part 1 is maintained by the opposing relative forces of the two sub-modules, and the contact part 1 can be prevented from shaking in the front-to-back direction or in the left-to-right direction; the front and rear edges of the contact part 1 are effectively supported by the two first protective plates 311 in the front and rear, limiting the height of the contact part 1 floating downward, effectively preventing the contact part 1 from being over-pressed, and further effectively preventing the elastic part 2 from failing due to deformation due to over-pressure; the connector designed in this scheme has a structural feature that is approximately cubic as a whole, and is a centrally symmetrical structure with high overall structural strength, good elastic effect and long service life. Through the optimized design of the structure, while improving the structural performance, it also simplifies the process technology, laying the foundation for the production of a connector with an integrated structure, and only requires bending and extrusion process, the process method is relatively simple, and the process difficulty is reduced.

[0044] For those skilled in the art, several variations and improvements can be made without departing from the inventive concept of the present invention, and all of these fall within the scope of protection of the present invention.

Claims

1. A double spring connector structure, which is an integrated structure, characterized by: It includes: a contact portion having a flat plate structure; an elastic portion disposed in a space below the contact portion, comprising an independent first submodule and a second submodule, wherein the first submodule and the second submodule are S-shaped elastic structures and support the contact portion diagonally; the bottom of the elastic portion is a flat plate structure forming a welding portion; a first connecting portion is disposed on the top of the first submodule, the first connecting portion being adjacent to a first location of the contact portion; a second connecting portion is disposed on the top of the second submodule, the second connecting portion being adjacent to a second location of the contact portion, the first location and the second location being diagonally distributed on opposite sides of the contact portion; The protective part includes an independent third submodule and a fourth submodule, and the third submodule and the fourth submodule are diagonally distributed to form two right-angle protective structures, blocking the outside of the elastic part; the third submodule is connected to the first submodule as a whole, and the fourth submodule is connected to the second submodule as a whole; the front edge of the contact part extends to the top of the fourth submodule, and the rear edge extends to the top of the third submodule; the top of the third submodule and the fourth submodule form a limit blocking surface for the downward floating of the contact part; the third submodule and the fourth submodule have the same structure and include a first protective plate erected upward from the front or rear edge of the welding part and a second protective plate formed by vertically folding from the left or right edge of the first protective plate; the first protective plate and the second protective plate form a right-angle protective structure, and the two right-angle protective structures constitute a diagonal protective part.

2. The double spring connector structure according to claim 1, wherein: A convex portion is provided at the center of the upper surface of the contact portion.

3. The double spring connector structure according to claim 1, wherein: The first submodule has the same structure as the second submodule and has an S-shaped winding structure as a whole, which includes a plurality of planar portions and a plurality of U-shaped connecting portions. The planar portions are arranged in parallel at equal intervals in the space below the contact portion, and the U-shaped connecting portions are arranged at the ends of two adjacent planar portions above and below and connect them into one; the two adjacent U-shaped connecting portions are relatively distributed on the front and rear sides.

4. The double spring connector structure according to claim 1, wherein: The first connecting portion is a C-shaped structure, with two ends thereof adjacent to the left front portion of the contact portion and the left front portion of the uppermost plane portion respectively; The second connecting portion is a C-shaped structure, with two ends thereof respectively adjacent to the right rear portion of the contact portion and the right rear portion of the uppermost plane portion.

5. The double spring connector structure according to claim 3, wherein: In the first submodule, the front edge of the welding portion is adjacent to the U-shaped connecting portion and the rear edge is adjacent to the root of the third submodule; the front section of the planar portion of the top layer has a widened portion; the front sections of the planar portion of the middle layer and the bottom layer have a widened portion; the left edge of the widened portion is close to the left surface of the third submodule.

6. The double spring connector structure according to claim 5, wherein: The front edge of the U-shaped connecting portion located at the front side is flush with the front edges of the uppermost plane portion and the contact portion.

7. The double spring connector structure according to claim 3, wherein: In the second submodule, the rear edge of the welding portion is adjacent to the U-shaped connecting portion and the front edge is adjacent to the root of the fourth submodule; the rear section of the topmost planar portion has a widened portion; the rear sections of the middle and bottom planar portions have a widened portion; the right edge of the widened portion is close to the right side surface of the fourth submodule.

8. The double spring connector structure according to claim 7, wherein: The rear edge of the U-shaped connecting portion at the rear side is flush with the rear edges of the uppermost plane portion and the contact portion.

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