An anti-interference USB plug

Abstract

The present invention relates to an anti-interference USB plug, which includes a rubber core assembly, a plug-in housing, and a wire-wrapping housing. The plug-in housing is integrally formed, and the wire-wrapping housing is detachably connected by a first wire-binding member and a second wire-binding member; the front ends of the first wire-binding member and the second wire-binding member form a connection port, and the rear end of the plug-in housing has a connection portion adapted to be covered by the connection port. A first limiting protrusion is provided at the rear end of the connection portion, and a second limiting protrusion adapted to the first limiting protrusion is provided at the front end of the wire-wrapping housing, and a second accommodating cavity for accommodating the first limiting protrusion is formed inside the second limiting protrusion. Both the front and rear ends of the second limiting protrusion are of an open structure; through the cooperation of the first limiting protrusion and the second limiting protrusion, not only does it play a positioning role, making the assembly of the first wire-binding member and the second wire-binding member more accurate, but it can also enhance the fixing structure between the wire-wrapping housing and the rubber coating during rubber coating to prevent degumming. In addition, it is beneficial for automated equipment to carry out processing and production, and the production efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field, in particular to an anti-interference USB plug.

Background Art

[0002] The existing USB plugs mainly include an upper shell, a lower shell and a rubber core assembly. During production, the wires need to be assembled with the upper shell and the lower shell first, and then the core wires of the wires are welded to the rubber core assembly. Finally, the rubber core assembly is pushed into the shell for encapsulation; the following problems exist in this structure:

[0003] 1. During repair and disassembly, it is not only difficult to disassemble, but also easy to damage the rubber core assembly, resulting in a high scrap rate;

[0004] 2. The upper shell and the lower shell are only connected by a snap structure, there are gaps, which easily cause electromagnetic wave leakage and interference from the outside to the video signal;

[0005] 3. There is no fixed structure between the upper shell, the lower shell and the encapsulation, and serious glue separation is likely to occur.

Summary of the Invention

[0006] To solve the above problems, the present invention provides an anti-interference USB plug with advantages or invention purposes filled in.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An anti-interference USB plug, comprising a rubber core assembly, a plug-in housing covering the front end of the rubber core assembly, and a wire-wrapping housing covering the rear end of the rubber core assembly. The plug-in housing is integrally formed, and the wire-wrapping housing is detachably connected by a first wire-binding member and a second wire-binding member; a connection port is formed at the front ends of the first wire-binding member and the second wire-binding member. The rear end of the plug-in housing has a connection portion adapted to be covered by the connection port. A first limiting protrusion is provided at the rear end of the connection portion. The front end of the wire-wrapping housing is provided with a second limiting protrusion adapted to the first limiting protrusion, and a second accommodating cavity for accommodating the first limiting protrusion is formed inside the second limiting protrusion. Both the front and rear ends of the second limiting protrusion are open structures.

[0009] As a preferred embodiment, it is further defined that both the front and rear ends of the first limiting protrusion are open structures, a first accommodating cavity is formed inside the first limiting protrusion, and the length of the first limiting protrusion is less than the length of the second limiting protrusion, so that the first accommodating cavity communicates with the second accommodating cavity.

[0010] As a preferred embodiment, it is further defined that the upper end surface of the first limiting protrusion is higher than the outer side surface of the wire-wrapping housing.

[0011] As a preferred embodiment, it is further defined that: a reinforcing rib is further provided at the rear end of the connecting portion, and after assembly, the reinforcing rib abuts against the front end face of the wire wrapping housing.

[0012] As a preferred embodiment, it is further defined that: the maximum width of the first wire hoop member is smaller than the maximum width of the second wire hoop member, so that when assembled, the first wire hoop member is snap-fitted into the second wire hoop member. The rear ends of the first wire hoop member and the second wire hoop member are both of a reduced-opening structure. A wire wrapping space is formed at the front end of the wire wrapping housing, and a wire hoop space smaller than the wire wrapping space is formed at the rear end.

[0013] As a preferred embodiment, it is further defined that: first engaging pieces are respectively bent downward or upward on the left and right sides of the first wire hoop member, and a first wire hoop body is formed between the two first engaging pieces; second engaging pieces are respectively bent upward or downward on the left and right sides of the second wire hoop member and are matched with the first engaging pieces, and a second wire hoop body is formed between the two second engaging pieces; a clamping block is arranged on the inner side of the second engaging piece, and a clamping hole matched with the clamping block is arranged on the first engaging piece.

[0014] As a preferred embodiment, it is further defined that: the clamping block is a wedge body.

[0015] As a preferred embodiment, it is further defined that: the rear end of the first wire hoop member has an arc-shaped first wire hoop portion, the rear end of the second wire hoop member has a second wire hoop portion with a diameter larger than that of the first wire hoop portion, both ends of the second wire hoop portion respectively extend upward above the first wire hoop portion, one end of the second wire hoop portion has a V-shaped opening, and the other end has a V-shaped convex block matched with the V-shaped opening. After assembly, both ends of the second wire hoop portion are bent toward each other and wrap around the outer surface of the first wire hoop portion, and the V-shaped convex block is embedded in the V-shaped opening and is in tight fit with it.

[0016] As a preferred embodiment, it is further defined that: an insertion block protrudes outward at the lower end of the first engaging piece, and the second wire hoop member is provided with a jack matched with the insertion block. After assembly, the insertion block is inserted into the jack and then abuts against the lower end face of the second wire hoop member through bending.

[0017] As a preferred embodiment, it is further defined that: the side end of the first wire hoop member further has a first rear wrapping portion connecting the first engaging piece and the first wire hoop portion, and the side end of the second wire hoop member further has a second rear wrapping portion connecting the second engaging piece and the second wire hoop portion. After assembly, the second rear wrapping portion abuts against the outer side of the first rear wrapping portion.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention includes a plug-in housing wrapped around the front end of the rubber core assembly and a wire-wrapping housing wrapped around the rear end of the rubber core assembly. The wire-wrapping housing is detachably connected by a first wire-binding member and a second wire-binding member. When defective products need to be repaired, it is only necessary to disassemble the first wire-binding member and the second wire-binding member, effectively protecting the rubber core assembly from being damaged and reducing the generation of scrap products.

[0020] 2. The cooperation between the connecting portion and the wire-wrapping housing through the first limiting protrusion and the second limiting protrusion not only plays a positioning role, making the assembly of the first wire-binding member and the second wire-binding member more accurate, preventing the first wire-binding member and the second wire-binding member from shifting and generating defective products due to excessive machine downward pressure during assembly, and effectively improving the qualified rate of the product. It can also enhance the fixed structure between the wire-wrapping housing and the encapsulation during encapsulation, making the assembly more firm and preventing degumming.

[0021] 3. A reinforcing rib is further provided at the rear end of the connecting portion. After assembly, the reinforcing rib abuts against the front end face of the wire-wrapping housing, capable of sealing the gap between the plug-in housing and the wire-wrapping housing connection, preventing electromagnetic wave leakage.

[0022] 4. The maximum width of the first wire-binding member is less than the maximum width of the second wire-binding member, so that the first wire-binding member is snap-fitted into the second wire-binding member during assembly, capable of sealing the side-end gap between the first wire-binding member and the second wire-binding member, preventing electromagnetic wave leakage.

[0023] 5. During assembly, the two ends of the second wire-binding portion are bent towards each other and wrapped around the outer surface of the first wire-binding portion. The V-shaped convex block is embedded in the V-shaped opening and is in tight fit with it, capable of sealing the gap between the wire and the HDMI connector, preventing electromagnetic wave leakage.

[0024] 6. The first wire-binding member further has a first rear wrapping portion, and the second wire-binding member further has a second rear wrapping portion. After assembly, the second rear wrapping portion abuts against the outside of the first rear wrapping portion, capable of sealing the rear-end gap between the first wire-binding member and the second wire-binding member, preventing electromagnetic wave leakage.

Description of the Drawings

[0025] Figure 1 is one of the structural schematic diagrams of the present invention;

[0026] Figure 2 is another structural schematic diagram of the present invention;

[0027] Figure 3 is one of the exploded schematic diagrams of the present invention;

[0028] Figure 4 is one of the structural schematic diagrams of the plug-in housing;

[0029] Figure 5 is another structural schematic diagram of the plug-in housing;

[0030] Figure 6 is a transverse sectional view of the present invention;

[0031] Figure 7 is a longitudinal partial sectional view of the present invention;

[0032] Figure 8 is the third structural schematic diagram of the present invention;

[0033] Figure 9 is the fourth structural schematic diagram of the present invention;

[0034] Figure 10 is the second exploded schematic diagram of the present invention.

Specific Embodiment

[0035] The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments:

[0036] As shown in the attached Figure 1 to the attached Figure 7 figures, the embodiments of the USB A male connector are shown. As shown in the attached Figure 8 to the attached Figure 10 figures, the embodiments of the USB B male connector are shown; An anti-interference USB plug includes a rubber core assembly 1, a plug-in housing 2 wrapped around the front end of the rubber core assembly 1, and a wire-wrapping housing 3 wrapped around the rear end of the rubber core assembly 1. The plug-in housing 2 is integrally formed, and the wire-wrapping housing 3 is detachably connected by a first wire-binding member 31 and a second wire-binding member 32. When defective products need to be repaired, only the first wire-binding member and the second wire-binding member need to be disassembled, effectively protecting the rubber core assembly from being damaged and reducing the generation of scrap products; A connection port 300 is formed at the front ends of the first wire-binding member 31 and the second wire-binding member 32. A connection portion 21 adapted to be wrapped by the connection port 300 is provided at the rear end of the plug-in housing 2. A first limiting protrusion 22 is provided at the rear end of the connection portion 21. A second limiting protrusion 33 adapted to the first limiting protrusion 22 is provided at the front end of the wire-wrapping housing 3, and a second accommodation cavity 34 for accommodating the first limiting protrusion 22 is formed inside the second limiting protrusion 33. Both the front and rear ends of the second limiting protrusion 33 are open structures. The cooperation between the connection portion and the wire-wrapping housing through the first limiting protrusion and the second limiting protrusion not only plays a positioning role, making the assembly of the first wire-binding member and the second wire-binding member more accurate, preventing the first wire-binding member and the second wire-binding member from shifting to produce defective products due to excessive machine downward pressure during assembly, effectively improving the qualified rate of products; It can also enhance the fixed structure between the wire-wrapping housing and the rubber coating during rubber coating, making the assembly more firm and preventing degumming. In addition, this structure is also beneficial for processing and production by automated equipment, with high production efficiency.

[0037] In this embodiment, both the front and rear ends of the first limiting protrusion 22 are of an open structure. A first accommodating cavity 23 is formed inside the first limiting protrusion 22. The length of the first limiting protrusion 22 is less than that of the second limiting protrusion 33, so that the first accommodating cavity 23 communicates with the second accommodating cavity 34, which is more conducive to the plastic entering the first accommodating cavity 23 and the second accommodating cavity 34 during glue injection. After glue injection, the plastic coats the first limiting protrusion 22, and the assembly is more firm. The upper end surface of the first limiting protrusion 22 is higher than the outer side surface of the wire-wrapping housing 3, which can increase the horizontal lifting weight capacity of this structure and make the structure more firm.

[0038] In this embodiment, a reinforcing rib 24 is further provided at the rear end of the connecting portion 21. After assembly, the reinforcing rib 24 abuts against the front end surface of the wire-wrapping housing 3, which can block the gap between the plug-in housing and the wire-wrapping housing connection to prevent electromagnetic wave leakage. In this embodiment, the reinforcing rib 24 is distributed in a circular manner on the surface of the plug-in housing 2, and the blocking effect is the best.

[0039] In this embodiment, the maximum width of the first wire-binding member 31 is less than the maximum width of the second wire-binding member 32, so that when assembling, the first wire-binding member 31 is snap-fitted into the second wire-binding member 32, which can block the side-end gap between the first wire-binding member and the second wire-binding member to prevent electromagnetic wave leakage. The rear ends of the first wire-binding member 31 and the second wire-binding member 32 are both of a reduced-opening structure. A wire-wrapping space is formed at the front end of the wire-wrapping housing 3, and a wire-binding space with a space smaller than the wire-wrapping space is formed at the rear end. The wire is fixed in the wire-binding space. The core wire of the wire is welded to the glue core assembly 1 in the wire-wrapping space. During assembly, first assemble the glue core assembly 1 with the plug-in housing 2, then weld the core wire to the glue core assembly 1, and finally assemble the first wire-binding member and the second wire-binding member.

[0040] In this embodiment, first clamping pieces 311 are respectively bent downward or upward on the left and right sides of the first wire-binding member 31, and a first wire-binding body 312 is formed between the two first clamping pieces 311. Second clamping pieces 321 that match the first clamping pieces 311 are respectively bent upward or downward on the left and right sides of the second wire-binding member 32, and a second wire-binding body 322 is formed between the two second clamping pieces 321. A clamping block 323 is provided on the inner side of the second clamping piece 321, and a clamping hole 313 that matches the clamping block 323 is provided on the first clamping piece 311. During assembly, the first wire-binding member 31 is snapped into the second wire-binding member 32 from top to bottom, and the clamping block 323 is snapped into the clamping hole 313 to make the first wire-binding member 31 and the second wire-binding member 32 snap-fitted, and the installation is firm. In order to prevent the first wire-binding member 31 and the second wire-binding member 32 from being easily separated, the clamping block 323 is set as a wedge body, which is convenient for the lower end of the first clamping piece 312 to slide over the clamping block 323 and snap into the clamping hole 313.

[0041] In this embodiment, the rear end of the first wire hoop member 31 has an arc-shaped first wire hoop portion 314, the rear end of the second wire hoop member 32 has a second wire hoop portion 324 with a diameter larger than that of the first wire hoop portion 314. Both ends of the second wire hoop portion 324 extend upward to above the first wire hoop portion 314 respectively. One end of the second wire hoop portion 324 has a V-shaped opening, and the other end has a V-shaped convex block matching the V-shaped opening. After assembly, both ends of the second wire hoop portion 324 are bent towards each other and wrapped around the outer surface of the first wire hoop portion 314. The V-shaped convex block is inserted into the V-shaped opening and is in tight fit with it, which can block the gap between the wire and the UCB plug and prevent electromagnetic wave leakage.

[0042] In this embodiment, an insertion block 315 protrudes outward from the lower end of the first engaging piece 311. The second wire hoop member 32 is provided with a jack 325 matching the insertion block 315. After assembly, the insertion block 315 is inserted into the jack 325 and then abuts against the lower end surface of the second wire hoop member 32 after being bent. The structure is simple and the assembly is firm.

[0043] In this embodiment, the side end of the first wire hoop member 31 further has a first rear wrapping portion 316 connecting the first engaging piece 311 and the first wire hoop portion 314. The side end of the second wire hoop member 32 further has a second rear wrapping portion 326 connecting the second engaging piece 321 and the second wire hoop portion 324. After assembly, the second rear wrapping portion 326 abuts against the outside of the first rear wrapping portion 316, which can block the rear gap between the first wire hoop member and the second wire hoop member and prevent electromagnetic wave leakage.

Claims

1. An anti-interference USB plug, comprising a rubber core assembly (1), a plugging outer shell (2) covering the front end of the rubber core assembly (1), and a wire-wrapping outer shell (3) covering the rear end of the rubber core assembly (1). The plugging outer shell (2) is integrally formed, and the wire-wrapping outer shell (3) is detachably connected by a first wire hoop member (31) and a second wire hoop member (32). The front ends of the first wire hoop member (31) and the second wire hoop member (32) form a connection port (300), and the rear end of the plugging outer shell (2) has a connection portion (21) adapted to be covered by the connection port (300), characterized in that A first limiting protrusion (22) is provided at the rear end of the connecting portion (21). A second limiting protrusion (33) adapted to the first limiting protrusion (22) is provided at the front end of the wire wrapping housing (3). Both the front and rear ends of the first limiting protrusion (22) are of open structures. Both the front and rear ends of the second limiting protrusion (33) are of open structures. A first accommodating cavity (23) is formed inside the first limiting protrusion (22). A second accommodating cavity (34) for accommodating the first limiting protrusion (22) is formed inside the second limiting protrusion (33). The length of the first limiting protrusion (22) is less than that of the second limiting protrusion (33), such that the first accommodating cavity (23) communicates with the second accommodating cavity (34). When injecting glue, the plastic enters the first accommodating cavity (23) and the second accommodating cavity (34), and after injecting the glue, the plastic coats the first limiting protrusion (22).

2. The anti-interference USB plug according to claim 1, wherein The upper end surface of the first limiting protrusion (22) is higher than the outer side surface of the wire wrapping housing (3).

3. The anti-interference USB plug according to any one of claims 1-2, characterized in that A reinforcing rib (24) is further provided at the rear end of the connecting portion (21). After assembly, the reinforcing rib (24) abuts against the front end surface of the wire wrapping housing (3).

4. The anti-interference USB plug according to any one of claims 1-2, characterized in that The maximum width of the first wire binding member (31) is less than that of the second wire binding member (32), such that when assembling, the first wire binding member (31) is snap-fitted into the second wire binding member (32). The rear ends of both the first wire binding member (31) and the second wire binding member (32) are of necked-down structures. A wire wrapping space is formed at the front end of the wire wrapping housing (3), and a wire binding space smaller than the wire wrapping space is formed at the rear end.

5. The anti-interference USB plug according to claim 4, wherein First engaging pieces (311) are respectively bent downward or upward on the left and right sides of the first wire binding member (31). A first wire binding body (312) is formed between the two first engaging pieces (311). Second engaging pieces (321) that match the first engaging pieces (311) are respectively bent upward or downward on the left and right sides of the second wire binding member (32). A second wire binding body (322) is formed between the two second engaging pieces (321). A locking block (323) is provided inside the second engaging piece (321). A locking hole (313) that matches the locking block (323) is provided on the first engaging piece (311).

6. The anti-interference USB plug according to claim 5, characterized in that The locking block (323) is a wedge body.

7. The anti-interference USB plug according to claim 5, wherein The rear end of the first wire binding member (31) has an arc-shaped first wire binding portion (314). The rear end of the second wire binding member (32) has a second wire binding portion (324) with a diameter larger than that of the first wire binding portion (314). Both ends of the second wire binding portion (324) respectively extend upward to above the first wire binding portion (314). One end of the second wire binding portion (324) has a V-shaped opening, and the other end has a V-shaped protrusion that matches the V-shaped opening. After assembly, both ends of the second wire binding portion (324) are respectively bent toward each other and wrap around the outer surface of the first wire binding portion (314), and the V-shaped protrusion is embedded in the V-shaped opening and is in tight fit with it.

8. The anti-interference USB plug according to claim 5, wherein The lower end of the first engaging piece (311) protrudes outward to form an insertion block (315). The second wire hoop member (32) is provided with a jack (325) matching the insertion block (315). After assembly, the insertion block (315) is inserted into the jack (325) and then abuts against the lower end surface of the second wire hoop member (32) by bending.

9. The anti-interference USB plug according to claim 5, wherein The side end of the first wire hoop member (31) further has a first rear wrapping portion (316) connecting the first engaging piece (311) and the first wire hoop portion (314). The side end of the second wire hoop member (32) further has a second rear wrapping portion (326) connecting the second engaging piece (321) and the second wire hoop portion (324). After assembly, the second rear wrapping portion (326) abuts against the outside of the first rear wrapping portion (316).

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