High-voltage-resistant waterproof self-locking electric connector for preventing wrong insertion

Abstract

The utility model relates to the technical field of connectors, and discloses a high-voltage-resistant waterproof self-locking electric connector for preventing wrong insertion, which comprises a socket assembly and a plug assembly, the socket assembly comprises a socket shell and a socket rubber core assembly, the socket rubber core assembly is assembled in the socket shell, and the plug assembly is arranged in the socket shell. Sealant is filled between one end, far away from the plug assembly, of the socket assembly and the socket rubber core assembly, the plug assembly comprises a shell sheath, a plug shell and a pressing sleeve, the plug shell is sleeved with the pressing sleeve and the shell sheath, a plug inner rubber core assembly is assembled in the plug shell, and the plug inner rubber core assembly is in plug-in fit with the socket rubber core assembly; a shielding ring is arranged in the plug shell, an O-shaped sealing ring is arranged between the outer wall of the shielding ring and the inner wall of the plug shell in an interference fit mode, a cable sealing ring is arranged on the inner wall of the shielding ring, and an O-shaped ring is arranged between the socket rubber core assembly and the socket shell. The problem that an existing connector cannot bear high voltage resistance and other test experiments is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a high-pressure resistant and waterproof self-locking electric connector for preventing erroneous insertion. Background Art

[0002] Connector: Usually installed on cables or equipment, for transmission line systems to electrically connect detachable source devices. Connectors are indispensable components in electronic equipment, and connector forms and structures are ever-changing. There are various forms of connectors depending on the application object, frequency, power, application environment, etc. Since the use of connectors is very limited, they generally cannot take into account both video signals and high voltage resistance. This defect of the connector limits its scope of application, and the connector often arcs and breaks down due to excessive voltage. Therefore, in order to improve the high voltage resistance of the connector, a high-voltage waterproof self-locking electrical connector structure that can prevent incorrect insertion is now needed. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a high-pressure resistant and waterproof self-locking electrical connector for preventing erroneous insertion, thereby solving the problem that the prior connector cannot withstand high-pressure resistance and other test experiments.

[0004] The purpose of the utility model is achieved through the following technical solutions: a high-pressure waterproof self-locking electrical connector for preventing incorrect insertion, comprising a socket assembly and a plug assembly, one end of the plug assembly is plugged into the socket assembly, the socket assembly comprises a socket shell and a socket rubber core assembly, the socket rubber core assembly is assembled in the socket shell, a sealant is poured between the end of the socket assembly away from the plug assembly and the socket rubber core assembly, the plug assembly comprises an outer shell sheath, a plug shell and a pressing sleeve, the pressing sleeve and the outer shell sheath are both sleeved on the plug shell, the outer shell sheath is arranged close to the socket shell, a plug inner rubber core assembly is assembled in the plug shell, the plug inner rubber core assembly is plugged and matched with the socket rubber core assembly, a shielding ring is arranged in the plug shell, an O-ring is interference-fitted between the outer wall of the shielding ring and the inner wall of the plug shell, a cable sealing ring is arranged on the inner wall of the shielding ring, an insertion space for inserting the plug assembly is formed between the socket rubber core assembly and the socket shell, an O-ring is arranged in the insertion space, and the O-ring is assembled on the inner wall of the socket shell.

[0005] In some embodiments, the socket rubber core assembly includes a hole insulator, a hole shell and an outer hole insulator, the hole shell is sleeved on the hole insulator, the outer hole insulator is sleeved on the hole shell, the hole insulator is provided with a coaxial hole at one end close to the plug assembly, and the outer hole insulator is assembled in the socket shell.

[0006] In some embodiments, a stepped hole is provided in the socket shell, a boss is formed on the outer wall of the insulator outside the hole, one end of the boss abuts against the step surface of the stepped hole, and a fixing sleeve is fixed in the socket shell, the fixing sleeve abuts against the other end of the boss.

[0007] In some embodiments, a step is formed on the outer wall of the socket housing, a sealing gasket is mounted on the socket housing, and the sealing gasket contacts the step.

[0008] In some embodiments, the plug inner rubber core assembly includes an inner shielding sleeve, an inner insulator and an outer insulator, the inner insulator is equipped with a coaxial pin, the coaxial pin is inserted into the coaxial hole, the inner shielding sleeve is equipped with the inner insulator and the bushing, the bushing and the inner insulator are coaxially abutted, the inner shielding sleeve is equipped with a clamping sleeve, the clamping sleeve is abutted against the end of the bushing away from the inner insulator, the outer insulator is sleeved on the inner shielding sleeve, the inner shielding sleeve is equipped with an insulating gasket at one end away from the coaxial pin, and the insulating gasket is coaxially abutted against the outer insulator.

[0009] In some embodiments, a gasket is provided between the insulating gasket and the shielding ring.

[0010] In some embodiments, a slotted pressing sleeve is installed in the shielding ring, a tail nut is mounted on the slotted pressing sleeve, the tail nut is threadedly mounted on the plug housing, the outer wall of the slotted pressing sleeve is conical, and the inner wall of the tail nut is a conical surface.

[0011] In some embodiments, a stop collar is provided between the inner wall of the compression sleeve and the plug housing.

[0012] The beneficial effects of the utility model are:

[0013] 1. The socket assembly adopts the structure of increasing the creepage distance and groove of the insulator, and improves the waterproof performance of the socket assembly by injecting sealant and installing O-rings in the socket shell. A shielding ring is set at the tail of the plug shell and O-rings and cable sealing rings are added to improve the waterproof ability of the plug assembly, so that the overall electrical connector has a higher waterproof performance.

[0014] 2. The rubber core component in the plug has a double-layer shielding structure, which can achieve the electromagnetic interference shielding effect during the use of video signals and high voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of a high-pressure resistant and waterproof self-locking electrical connector for preventing incorrect insertion according to the utility model;

[0016] Figure 2This is a schematic structural diagram of a socket rubber core assembly in a high-pressure resistant and waterproof self-locking electrical connector for preventing incorrect insertion according to the utility model;

[0017] Figure 3 This is a schematic structural diagram of a plug inner rubber core assembly in a high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to the utility model;

[0018] In the figure, 1-socket housing, 2-O-ring, 3-sealing pad, 4-socket rubber core assembly, 5-fixing sleeve, 6-sealant, 7-gasket, 11-shell jacket, 12-plug shell, 13-pressing sleeve, 14-plug inner rubber core assembly, 15-shielding ring, 16-O-ring, 17-cable sealing ring, 18-hole insulator, 19-hole shell, 20-hole outer insulator, 21-coaxial hole, 24-inner shielding sleeve, 25-inner insulator, 26-outer insulator, 27-coaxial pin, 28-bushing, 29-pressing sleeve, 30-insulating gasket, 31-slotted pressing sleeve, 32-tail nut, 33-stop clamp. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0020] like Figures 1 to 3As shown, a high-pressure waterproof self-locking electrical connector for preventing incorrect insertion includes a socket assembly and a plug assembly, one end of the plug assembly is plugged into the socket assembly, the socket assembly includes a socket housing 1 and a socket rubber core assembly 4, the socket rubber core assembly 4 is assembled in the socket housing 1, and a sealant 6 is poured between the end of the socket assembly away from the plug assembly and the socket rubber core assembly 4, the plug assembly includes an outer shell sheath 11, a plug outer shell 12 and a pressing sleeve 13, the pressing sleeve 13 and the outer shell sheath 11 are both sleeved on the plug outer shell 12, the outer shell sheath 11 is arranged close to the socket housing 1, a stop collar 33 is arranged between the inner wall of the pressing sleeve 13 and the plug outer shell 12, a plug inner rubber core assembly 14 is assembled in the plug outer shell 12, the plug inner rubber core assembly 14 is plugged and adapted with the socket rubber core assembly 4, and a stop collar 33 is arranged in the plug outer shell 12 There is a shielding ring 15, an O-ring 16 is interference-fitted between the outer wall of the shielding ring 15 and the inner wall of the plug shell 12, a cable sealing ring 17 is arranged on the inner wall of the shielding ring 15, and a plugging space for inserting the plug assembly is formed between the socket rubber core assembly 4 and the socket shell 1, and an O-ring 2 is arranged in the plugging space, and the O-ring 2 is assembled on the inner wall of the socket shell 1, and the O-ring 2 is installed in the socket shell 1 to cooperate with the shell sheath 11 to achieve a waterproof effect, and the waterproof effect is achieved by injecting sealant 6 between the socket assembly and the socket rubber core assembly 4, so that the socket assembly has a better waterproof effect; secondly, the O-ring 16 seals and waterproofs the shielding ring 15 and the plug shell 12, and the cable sealing ring 17 cooperates with the cable to achieve a waterproof effect, thereby improving the waterproof ability of the plug assembly.

[0021] In some embodiments, Figure 1 and Figure 2 As shown, the socket rubber core assembly 4 includes a hole insulator 18, a hole shell 19 and an outer hole insulator 20. The hole shell 19 is sleeved on the hole insulator 18, and the outer hole insulator 20 is sleeved on the hole shell 19. The hole insulator 18 is provided with a coaxial hole 21 at one end close to the plug assembly. The outer hole insulator 20 is assembled in the socket shell 1. The outer wall of the socket shell 1 is formed with a step. The socket shell 1 is sleeved with a sealing gasket 3, and the sealing gasket 3 contacts the step. The socket shell 1 is provided with a stepped hole. The outer wall of the outer hole insulator 20 is formed with a boss, and one end of the boss abuts on the step surface of the stepped hole. A fixing sleeve 5 is fixed in the socket shell 1, and the fixing sleeve 5 abuts on the other end of the boss. The fixing sleeve 5 is installed in the socket shell 1 to fix the socket rubber core assembly 4, the hole insulator 18 is installed in the hole shell 19, and then the hole shell 19 is installed in the outer hole insulator 20 to complete the assembly of the socket rubber core assembly 4, and then the socket rubber core assembly 4 is installed in the socket shell 1.

[0022] In some embodiments, Figure 1 and Figure 3As shown, the plug inner rubber core assembly 14 includes an inner shielding sleeve 24, an inner insulator 25 and an outer insulator 26. The inner insulator 25 is provided with a coaxial pin 27, which is plugged into the coaxial hole 21. The inner shielding sleeve 24 is provided with the inner insulator 25 and a bushing 28, which is coaxially abutted against the inner insulator 25. The inner shielding sleeve 24 is provided with a pressing sleeve 29, which abuts against one end of the bushing 28 away from the inner insulator 25. The outer insulator 26 is sleeved on the inner shielding sleeve 24, which is away from the coaxial pin 27. An insulating gasket 30 is mounted on one end of the plug, and the insulating gasket 30 is coaxially abutted against the outer insulator 26. A coaxial pin 27 is installed in the inner insulator 25, and the inner insulator 25 is installed in the bushing 28 to achieve the creepage distance of the plug assembly, and then the bushing 28 is installed in the inner shielding sleeve 24 to achieve the electromagnetic interference effect. The insulating gasket 30 is installed on the bushing 28 to achieve a secondary insulation effect. Combined with the setting of the shielding ring 15, a double-layer shielding structure is formed, which can solve the problem of electromagnetic interference shielding during the use of video signals and high voltage.

[0023] Furthermore, a gasket 7 is provided between the insulating gasket 30 and the shielding ring 15 , and the cable is inserted into the shielding ring 15 , and the gasket 7 is pressed on the inner shielding of the cable.

[0024] In some embodiments, Figure 1 As shown, a slotted pressing sleeve 31 is assembled in the shielding ring 15, and a tail nut 32 is mounted on the slotted pressing sleeve 31. The tail nut 32 is threadedly mounted on the plug housing 12. The outer wall of the slotted pressing sleeve 31 is conical, and the inner wall of the tail nut 32 is a conical surface. After the slotted pressing sleeve 31 is installed on the cable, the tail nut 32 is installed, and the nut 32 is tightened to shrink the slotted pressing sleeve 31 and press it on the cable, thereby fixing the cable.

[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; and it is known to those skilled in the art that the beneficial effects to be achieved by the present invention are only to achieve better beneficial effects under specific circumstances compared with the current implementation schemes in the prior art, rather than to directly achieve the best use effect in the industry.

[0026] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high-pressure waterproof self-locking electrical connector for preventing incorrect insertion, comprising a socket assembly and a plug assembly, one end of the plug assembly being plugged into the socket assembly, characterized in that: The socket assembly comprises a socket housing (1) and a socket rubber core assembly (4), wherein the socket rubber core assembly (4) is assembled in the socket housing (1), and a sealant (6) is injected between an end of the socket assembly away from the plug assembly and the socket rubber core assembly (4), and the plug assembly comprises an outer shell sheath (11), a plug outer shell (12) and a pressing sleeve (13), wherein the pressing sleeve (13) and the outer shell sheath (11) are both mounted on the plug outer shell (12), the outer shell sheath (11) is arranged close to the socket housing (1), and the plug inner rubber core assembly (13) is assembled in the plug outer shell (12). 4), the plug rubber core component (14) is plug-fitted with the socket rubber core component (4), a shielding ring (15) is arranged in the plug shell (12), an O-ring (16) is interference-fitted between the outer wall of the shielding ring (15) and the inner wall of the plug shell (12), a cable sealing ring (17) is arranged on the inner wall of the shielding ring (15), an insertion space for inserting the plug component is formed between the socket rubber core component (4) and the socket shell (1), an O-ring (2) is arranged in the insertion space, and the O-ring (2) is assembled on the inner wall of the socket shell (1).

2. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 1, characterized in that: The socket rubber core assembly (4) comprises a hole insulator (18), a hole shell (19) and an outer hole insulator (20); the hole shell (19) is sleeved on the hole insulator (18); the outer hole insulator (20) is sleeved on the hole shell (19); a coaxial hole (21) is provided at one end of the hole insulator (18) close to the plug assembly; and the outer hole insulator (20) is assembled in the socket shell (1).

3. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 2, characterized in that: A stepped hole is provided in the socket housing (1), a boss is formed on the outer wall of the insulator (20) outside the hole, one end of the boss abuts against the step surface of the stepped hole, a fixing sleeve (5) is fixed in the socket housing (1), and the fixing sleeve (5) abuts against the other end of the boss.

4. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 3, characterized in that: The outer wall of the socket housing (1) is formed with a step, and a sealing gasket (3) is sleeved on the socket housing (1), and the sealing gasket (3) contacts the step.

5. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 2, characterized in that: The plug inner rubber core assembly (14) comprises an inner shielding sleeve (24), an inner insulator (25) and an outer insulator (26); the inner insulator (25) is provided with a coaxial pin (27), the coaxial pin (27) is inserted into the coaxial hole (21); the inner shielding sleeve (24) is provided with the inner insulator (25) and a bushing (28), the bushing (28) and the inner insulator (25) are coaxially opposed to each other; the inner shielding sleeve (24) is provided with a pressing sleeve (29), the pressing sleeve (29) is opposed to one end of the bushing (28) away from the inner insulator (25); the outer insulator (26) is sleeved on the inner shielding sleeve (24), the end of the inner shielding sleeve (24) away from the coaxial pin (27) is sleeved with an insulating gasket (30), the insulating gasket (30) and the outer insulator (26) are coaxially opposed to each other.

6. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 5, characterized in that: A gasket (7) is provided between the insulating gasket (30) and the shielding ring (15).

7. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 6, characterized in that: A slotted pressing sleeve (31) is mounted inside the shielding ring (15), a tail nut (32) is mounted on the slotted pressing sleeve (31), and the tail nut (32) is threadedly mounted on the plug housing (12); the outer wall of the slotted pressing sleeve (31) is conical, and the inner wall of the tail nut (32) is a conical surface.

8. A high-pressure resistant waterproof self-locking electrical connector for preventing incorrect insertion according to claim 6, characterized in that: A stop collar (33) is provided between the inner wall of the pressing sleeve (13) and the plug housing (12).

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