Foreign matter preventing terminal

Abstract

This invention discloses a foreign object prevention terminal, comprising a terminal body, a dustproof part, and a welding part. The dustproof part is located between the terminal body and the welding part. The terminal body, dustproof part, and welding part are integrally formed by stamping and bending. The dustproof part includes a left side wall, a right side wall, a front baffle, a rear baffle, and a dustproof top wall. The front baffle and rear baffle are formed by bending from both ends of the right side wall towards the left side wall. A closed space is formed between the left side wall, right side wall, front baffle, rear baffle, dustproof top wall, and the connector body on which the foreign object prevention terminal is installed. The front baffle and rear baffle are used to prevent foreign objects from entering the terminal body from one end of the welding part. The advantages of this invention are: the dustproof baffle is directly formed during the stamping and bending process, eliminating the need for a dust plug assembly process, greatly reducing processing costs and improving processing efficiency. Furthermore, since the dustproof structure and the terminal structure are integrated, the stability of the connector is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of connectors, and more particularly to a foreign object-proof terminal. Background Technology

[0002] In electronic devices, connector terminals are used to transmit electrical signals. Before a connector is mated with its mating connector, such as during transportation, storage, or circuit board soldering, the internal contact areas of the terminals are highly susceptible to contamination from dust, foreign matter, flux, solder splatter, and fixative, which can affect the reliability and lifespan of the terminal contact. Therefore, protective measures are typically required for connector terminals.

[0003] Currently, most common anti-foreign-object terminal structures adopt a split design. That is, a plastic plug adapted to the shape of the terminal opening is manufactured separately, and then the plastic plug is inserted into the head of the connector terminal one by one to seal the terminal opening and achieve the purpose of dust prevention. However, this method of inserting plastic plugs separately has obvious shortcomings in practical applications.

[0004] On the one hand, the addition of plastic plugs not only increases mold and material costs but also complicates material management. On the other hand, the assembly process is cumbersome, requiring the extremely small plugs to be aligned with the terminal openings and pressed in one by one. Automation is difficult, relying heavily on manual operation, leading to low production efficiency and increased labor costs. Especially as connectors continue to evolve towards miniaturization and high density, terminal sizes are becoming increasingly smaller, making the plugs more difficult to handle and assemble, further increasing assembly difficulty and potentially causing problems such as improper assembly and terminal deformation.

[0005] Meanwhile, the separate plastic plugs are prone to loosening and falling off during transportation due to vibration or temperature changes. Once the plugs come off, the terminals lose their dust protection, making it difficult to guarantee reliability. When the connector needs to be used normally, the plugs must be removed one by one, which is inconvenient and generates a lot of tiny waste. In fact, the terminals may be damaged during the removal process.

[0006] In summary, the existing split-type plug-in anti-foreign-object terminal structure has problems such as multiple processes, high cost, low assembly efficiency, and insufficient dustproof reliability, which cannot fully meet the needs of connector miniaturization and efficient production, and needs further improvement. Summary of the Invention

[0007] The technical problem to be solved by the present invention is how to improve the assembly efficiency of dustproof connector terminals. In view of the above-mentioned technical problem, a foreign object-proof terminal is proposed.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a foreign object prevention terminal, comprising a terminal body, a dustproof part, and a welding part, wherein the dustproof part is located between the terminal body and the welding part, and the terminal body, the dustproof part, and the welding part are integrally formed by stamping and bending, wherein the dustproof part includes a left side wall, a right side wall, a front baffle, a rear baffle, and a dustproof top wall, wherein the front baffle and the rear baffle are formed by bending from both ends of the right side wall toward the left side wall, wherein the left side wall, the right side wall, the front baffle, the rear baffle, the dustproof top wall, and the connector body on which the foreign object prevention terminal is installed form a closed space, wherein the front baffle and the rear baffle are used to prevent foreign objects from entering the terminal body from one end of the welding part.

[0009] Furthermore, the left side wall is provided with a left anchoring hole, and the right side wall is provided with a right anchoring hole, the left anchoring hole and the right anchoring hole being L-shaped.

[0010] Furthermore, a front stop limiting convex bulge and a rear stop limiting convex bulge are respectively provided on the inner side of the right side wall. The front stop limiting convex bulge and the rear stop limiting convex bulge are configured with a central concave structure. The front stop and the rear stop are inserted into the concave structure, and the front stop limiting convex bulge and the rear stop limiting convex bulge limit the front stop and the rear stop respectively.

[0011] Furthermore, anti-backlash barbs are provided on both sides of the dustproof top wall of the dustproof part. The anti-backlash barbs are integrally formed with the dustproof top wall. The anti-backlash barbs on both sides are formed by cutting and bending outward from the left side wall and the right side wall, respectively. The holes left below the anti-backlash barbs serve as anchoring holes.

[0012] Furthermore, the welding part includes a welding foot and a connecting body. The welding foot bends outward at the tail of the connecting body. The connecting body connects to the dustproof part. The top of the connecting body is provided with a welding foot connecting reinforcing rib.

[0013] Furthermore, the terminal body includes a top wall, a main side wall, a bottom wall, a secondary side wall, a first spring sheet, and a second spring sheet. The top wall, main side wall, bottom wall, secondary side wall, first spring sheet, and second spring sheet are formed by rolling to form the structure of the terminal body. The first spring sheet and the second spring sheet are formed by bending from one side of the secondary side wall toward the main side wall. The first spring sheet and the second spring sheet are respectively bent inward at the front and rear ends of the secondary side wall. The first spring sheet and the second spring sheet are arranged facing each other and overlapping each other.

[0014] Furthermore, the secondary sidewall includes a first spring plate base, a second spring plate base, and a side cover portion. The first spring plate base and the second spring plate base are formed by bending the top wall downwards, and the side cover portion is formed by bending the bottom wall upwards. The side cover portion is inserted into the space formed by the first spring plate base and the second spring plate base. The first spring plate base, the second spring plate base, and the side cover portion constitute the entire secondary sidewall.

[0015] Furthermore, a self-locking hook is provided on the bottom wall, which is located near the secondary side wall and is an elastic hook that can be lifted downwards.

[0016] Furthermore, a first buckle is provided on the side of the first spring piece near the main sidewall, and a second buckle is provided on the side of the second spring piece near the main sidewall. A first slot and a second slot are respectively provided on the main sidewall at the positions opposite to the bends of the first and second spring pieces. The first slot and the second slot correspond to the first buckle and the second buckle to form a fastening position.

[0017] Furthermore, a top wall protrusion is provided on the inner side of the top wall.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This invention adds a front and rear dustproof barrier to both ends of the terminal anchoring section. The front and rear barriers are formed by bending the side walls that form anchoring holes on both sides inward. This allows the dustproof barrier to be formed directly during the stamping and bending process, eliminating the need for subsequent dust plug assembly. This greatly reduces processing costs and improves processing efficiency. At the same time, since the dustproof structure and the terminal structure are integrated, the stability of the connector is greatly improved. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the upper front end of the present invention; Figure 3 This is a schematic diagram of the side structure of the main side in this invention; Figure 4 This is a schematic diagram of the side structure of the secondary side in this invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] See Figures 1-4As shown in the illustration, this specific embodiment discloses a foreign object resistant terminal, including a terminal body 1, a dustproof part 2, and a welding part 3. The dustproof part 2 is located between the terminal body 1 and the welding part 3. The terminal body 1, dustproof part 2, and welding part 3 are integrally formed by stamping and bending. The terminal body 1, as the main part of the insertion connection, includes key structures such as spring contacts. If foreign objects are introduced during processing and transportation, it can easily lead to connector failure and shorten the connector's lifespan.

[0022] Specifically, the dustproof part 2 includes a left side wall 21, a right side wall 22, a front baffle 23, a rear baffle 24, and a dustproof top wall 26. The front baffle 23 and the rear baffle 24 are formed by bending from both ends of the right side wall 22 toward the left side wall 21. A closed space is formed between the left side wall 21, the right side wall 22, the front baffle 23, the rear baffle 24, the dustproof top wall 26, and the connector body on which the anti-foreign object terminal is installed. That is, after anchoring, a relatively closed space is formed between the dustproof part 2 and the plastic shell. Thus, the front baffle 23 and the rear baffle 24 are used to prevent foreign objects from entering the terminal body part 1 from one end of the welding part 3. Since dustproof front and rear baffles are added to both ends of the terminal anchoring section, and the front and rear baffles are formed by bending inward from the side walls on both sides where anchoring holes are formed, the dustproof baffles can be directly formed during the stamping and bending process, thus eliminating the need for subsequent dustproof plug assembly, greatly reducing processing costs and improving processing efficiency. At the same time, since the dustproof structure and the terminal structure are integrated, the stability of the connector is greatly improved. The front and rear guards effectively prevent foreign objects and adhesives from entering the terminals during assembly and use, thus improving the stability of terminal use.

[0023] Preferably, the left side wall 21 is provided with a left anchoring hole 211, and the right side wall 22 is provided with a right anchoring hole 223, wherein the left anchoring hole 211 and the right anchoring hole 223 are L-shaped. Compared with circular anchoring holes, the use of L-shaped anchoring holes can form a more robust plastic anchor during injection molding, thereby improving stability.

[0024] Furthermore, as a further extension of the innovation of this invention, a front deflector limiting protrusion 221 and a rear deflector limiting protrusion 222 are respectively provided on the inner side of the right side wall 22. The front deflector limiting protrusion 221 and the rear deflector limiting protrusion 222 are configured with a recessed structure in the middle. The front deflector 23 and the rear deflector 24 are inserted into this recess, and the front deflector limiting protrusion 221 and the rear deflector limiting protrusion 222 respectively limit the front deflector 23 and the rear deflector 24. Through the limiting of the protrusions, deformation of the front deflector and the rear deflector during insertion can be effectively avoided, thus preventing subsequent dustproof performance.

[0025] Preferably, the dustproof top wall 26 of the dustproof part 2 is provided with anti-reverse barbs 25 on both sides. The anti-reverse barbs 25 are integrally formed with the dustproof top wall 26. The anti-reverse barbs 25 on both sides are formed by cutting and bending outward from the left side wall 21 and the right side wall 22, respectively. The holes left below the anti-reverse barbs 25 serve as anchoring holes. The double barb design at the tail, combined with the hook at the front end, achieves double anti-reverse. The anti-reverse barbs 25 on both sides cooperate with the protrusions inside the plastic shell, and after insertion, they hook in place to prevent reversal.

[0026] In addition, the welding part 3 includes a welding foot 30 and a connecting body 32. The welding foot 30 bends outward at the tail of the connecting body 32. The connecting body 32 is connected to the dustproof part 2. The top of the connecting body 32 is provided with a welding foot connecting reinforcing rib 31, wherein the welding foot connecting reinforcing rib 31 is an inwardly oriented long strip groove. This design can not only achieve stress release, but also improve the connection strength of the welding foot.

[0027] Furthermore, the terminal body 1 includes a top wall 11, a main side wall 12, a bottom wall 13, a secondary side wall 14, a first spring 15, and a second spring 16. The top wall 11, main side wall 12, bottom wall 13, secondary side wall 14, first spring 15, and second spring 16 are formed by rolling to create the structure of the terminal body 1. The first spring 15 and second spring 16 are formed by bending from one side of the secondary side wall 14 towards the main side wall 12. The first spring 15 and second spring 16 are bent inwards at the front and rear ends of the secondary side wall 14, respectively. The first spring 15 and second spring 16 are arranged facing each other and overlapping. The main structure of the terminal is formed by rolling during the bending process. Specifically, the first spring 15 and second spring 16 are bent inwards from the side wall. The double springs of the first spring 15 and second spring 16 improve the insertion and extraction force and simultaneously enhance stability, ensuring connection stability.

[0028] Preferably, the secondary sidewall 14 includes a first spring sheet base 141, a second spring sheet base 142, and a side-mounted portion 143. The first spring sheet base 141 and the second spring sheet base 142 are formed by bending downward from the top wall 11, and the side-mounted portion 143 is formed by bending upward from the bottom wall 13. The side-mounted portion 143 is inserted into the space formed by the first spring sheet base 141 and the second spring sheet base 142. The first spring sheet base 141, the second spring sheet base 142, and the side-mounted portion 143 constitute the entire secondary sidewall 14. By adopting a bending method from one side and using a side-mounted portion to ensure structural strength, the amount of material used is effectively reduced.

[0029] Preferably, the bottom wall 13 is provided with a self-locking hook 131 facing downwards. The self-locking hook 131 is located on the side of the secondary side wall 14. The self-locking hook 131 is an elastic hook that can be lifted downwards. The self-locking hook 131 cooperates with the corresponding slot inside the plastic shell. After insertion, the self-locking hook 131 is locked in the slot, thereby preventing it from falling back.

[0030] Preferably, the first spring piece 15 is provided with a first latch 151 on the side near the main sidewall 12, and the second spring piece 16 is provided with a second latch 161 on the side near the main sidewall 12. A first slot 121 and a second slot 122 are respectively provided on the main sidewall 12 at positions opposite the bends of the first spring piece 15 and the second spring piece 16. The first slot 121 and the second slot 122 correspond to the first latch 151 and the second latch 161 to form a locking position. This locking position can fix the position of the spring pieces, ensuring the stability of the spring pieces' elasticity.

[0031] In a further preferred embodiment, the inner side of the top wall 11 is provided with a top wall protrusion 111. The top wall protrusion 111 can increase the elastic clamping force after the male end is inserted, ensuring the insertion and extraction force, and at the same time, it can change the surface contact to point contact, reducing wear.

[0032] In addition, a top wall reinforcing rib 112 is also provided on the outer side of the top wall 11 to relieve stress on the top wall of the terminal and improve strength.

[0033] Furthermore, the tail end of the secondary side wall 14, near the dustproof part 2, is beveled to accommodate the space created by the bent portion, as shown in the tail bevel 144 in the figure. This bevel serves both to accommodate the shape's manufacturing process and to ensure the flatness of the terminal's surface. This prevents overall structural distortion and maintains flatness, as stamped parts require very flat outer and bottom walls for easy insertion of the sheath and to ensure contact accuracy. This design provides sufficient deformation space for the formation of complex internal shapes while preventing the bending force from being transmitted to the bottom plate, thus maintaining the squareness and straightness of the terminal's external frame.

[0034] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A foreign object protection terminal, characterized in that, The device includes a terminal body (1), a dustproof part (2), and a welding part (3). The dustproof part (2) is located between the terminal body (1) and the welding part (3). The terminal body (1), the dustproof part (2), and the welding part (3) are integrally formed by stamping and bending. The dustproof part (2) includes a left side wall (21), a right side wall (22), a front baffle (23), a rear baffle (24), and a dustproof top wall (26). The front baffle (23) and the rear baffle (24) are formed by bending from both ends of the right side wall (22) toward the left side wall (21). The left side wall (21), the right side wall (22), the front baffle (23), the rear baffle (24), the dustproof top wall (26), and the connector body on which the anti-foreign object terminal is installed form a closed space. The front baffle (23) and the rear baffle (24) are used to prevent foreign objects from entering the terminal body (1) from one end of the welding part (3).

2. The anti-foreign object terminal according to claim 1, characterized in that, The left side wall (21) is provided with a left anchoring hole (211), and the right side wall (22) is provided with a right anchoring hole (223). The left anchoring hole (211) and the right anchoring hole (223) are L-shaped.

3. The anti-foreign object terminal according to claim 1, characterized in that, The front and rear limit protrusions (221 and 222) are respectively provided on the inner side of the right side wall (22). The front limit protrusions (221) and the rear limit protrusions (222) are configured with a recessed structure in the middle. The front (23) and the rear (24) are inserted into the recess. The front limit protrusions (221) and the rear limit protrusions (222) limit the front (23) and the rear (24) respectively.

4. The anti-foreign object terminal according to claim 1, characterized in that, The dustproof top wall (26) of the dustproof part (2) is provided with anti-reverse barbs (25) on both sides. The anti-reverse barbs (25) are integrally formed with the dustproof top wall (26). The anti-reverse barbs (25) on both sides are formed by cutting and bending outward from the left side wall (21) and the right side wall (22) respectively. The hole left below the anti-reverse barb (25) serves as an anchoring hole.

5. The anti-foreign object terminal according to claim 1, characterized in that, The welding part (3) includes a welding foot (30) and a connecting body (32). The welding foot (30) bends outward at the tail of the connecting body (32). The connecting body (32) is connected to the dustproof part (2). The top of the connecting body (32) is provided with a welding foot connecting reinforcing rib (31).

6. The anti-foreign object terminal according to claim 1, characterized in that, The terminal body (1) includes a top wall (11), a main side wall (12), a bottom wall (13), a secondary side wall (14), a first spring piece (15), and a second spring piece (16). The top wall (11), the main side wall (12), the bottom wall (13), the secondary side wall (14), the first spring piece (15), and the second spring piece (16) are formed by rolling to form the structure of the terminal body (1). The first spring piece (15) and the second spring piece (16) are formed by bending from one side of the secondary side wall (14) toward the main side wall (12). The first spring piece (15) and the second spring piece (16) are respectively bent inward at the front and rear ends of the secondary side wall (14). The first spring piece (15) and the second spring piece (16) are arranged facing each other and overlapped.

7. A foreign object prevention terminal according to claim 6, characterized in that, The sub-sidewall (14) includes a first spring base (141), a second spring base (142), and a side-packing portion (143). The first spring base (141) and the second spring base (142) are formed by bending the top wall (11) downwards, and the side-packing portion (143) is formed by bending the bottom wall (13) upwards. The side-packing portion (143) is inserted into the space formed by the first spring base (141) and the second spring base (142). The first spring base (141), the second spring base (142), and the side-packing portion (143) constitute the entire sub-sidewall (14).

8. A foreign object prevention terminal according to claim 6, characterized in that, The bottom wall (13) is provided with a self-locking hook (131) facing downwards. The self-locking hook (131) is located on the side of the secondary side wall (14) and is an elastic hook that can be lifted downwards.

9. A foreign object prevention terminal according to claim 6, characterized in that, The first spring piece (15) is provided with a first buckle (151) on the side near the main side wall (12), and the second spring piece (16) is provided with a second buckle (161) on the side near the main side wall (12). The main side wall (12) is provided with a first slot (121) and a second slot (122) at the bends of the first spring piece (15) and the second spring piece (16), respectively. The first slot (121) and the second slot (122) correspond to the first buckle (151) and the second buckle (161) to form a fastening position.

10. A foreign object prevention terminal according to claim 6, characterized in that, The inner side of the top wall (11) is provided with a top wall protrusion (111).

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