Underwater electric connector assembly

Abstract

The utility model provides an underwater electric connector assembly, which comprises a shell and a base arranged in the shell, the inner wall of the shell is provided with a circle of annular boss arranged along the circumferential direction, the tail part of the base is limited at the front side of the annular boss, and the tail part of the base is connected with the shell. The front end face of the annular boss is a first conical face, the inner diameter of the first conical face is gradually reduced from front to back, and the tail of the base is provided with a second conical face matched with the first conical face. According to the underwater electric connector assembly, the shell and the tail part of the base are in conical surface contact, and in an underwater high-pressure environment, when the front end of the base is subjected to water pressure, the conical contact surface can convert part of axial force into radial force, so that the shearing force between the base and the annular boss is reduced, the damage of the base to the annular boss can be reduced, and the service life of the underwater electric connector assembly is prolonged. Therefore, the stability of the electric connector assembly is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric connectors, and more specifically to an underwater electric connector component. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Underwater connectors are key components for transmitting power and signals between underwater devices. Existing underwater connectors usually include a housing and a base installed in the housing. In order to prevent the base from sliding in the housing, a circle of radial limit steps perpendicular to the inner wall is provided on the inner wall of the housing. However, in an underwater high-pressure environment, when one end of the base is subjected to water pressure, pressure is generated on the radial limit step. Since the step is a vertical structure, it will be subjected to a large shear force, which may cause damage to the step structure and thus affect the stability of the entire electrical connector.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an underwater electrical connector component with high pressure bearing capacity.

[0006] In order to solve the above technical problems, the utility model provides an underwater electrical connector assembly, which includes an outer shell and a base arranged in the outer shell, the inner wall of the outer shell has a circle of annular bosses arranged along the circumferential direction, the tail of the base is limited to the front side of the annular boss, the front end face of the annular boss is a first conical surface whose inner diameter gradually decreases from front to back, and the tail of the base has a second conical surface matching the first conical surface.

[0007] Preferably, an anti-rotation key is provided on the first conical surface, and a recess matched with the anti-rotation key is provided on the second conical surface, and the anti-rotation key is embedded in the recess to prevent the base from rotating on the shell.

[0008] Preferably, the side wall of the shell at the tail position behind the annular boss is a third conical surface, and the inner diameter of the third conical surface gradually decreases from front to back.

[0009] Preferably, the electrical connector assembly further comprises a contact piece which penetrates the base front to back.

[0010] Preferably, the electrical connector assembly further comprises a docking connector docked at the front end of the housing.

[0011] Preferably, the front end of the contact piece is a pin for docking with the socket of the docking connector, and the rear end of the contact piece is a soldering cup for soldering the wire.

[0012] Preferably, a first sealing ring is further provided on the inner wall of the shell along the circumferential direction, and the shell and the base are sealed by the first sealing ring.

[0013] Preferably, the outer wall of the housing is provided with a circle of flange along the circumferential direction, and the rear end surface of the flange is provided with a circle of second sealing ring along the circumferential direction.

[0014] Preferably, the outer wall of the housing is located at the rear side of the flange, and a third sealing ring is provided along the circumferential direction.

[0015] Preferably, the inner wall of the shell is circumferentially provided with a circle of concave ring, and a fourth sealing ring is provided inside the concave ring. The fourth sealing ring is used to seal the shell and the shell of the docking connector when the shell is docked with the docking connector.

[0016] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0017] In the underwater electrical connector assembly of the utility model, the shell and the tail of the base are in conical contact. In an underwater high-pressure environment, when the front end of the base is subjected to water pressure, the conical contact surface can convert part of the axial force into radial force, thereby reducing the shear force between the base and the annular boss. This can reduce the damage of the base to the annular boss, thereby improving the stability of the electrical connector assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the electric connector assembly of the utility model.

[0019] Figure 2 It is a partial structural schematic diagram of the electrical connector assembly of the utility model.

[0020] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure.

[0021] Among them: 1. housing; 2. base; 3. contact piece; 4. first sealing ring; 5. docking connector; 11. flange; 12. second sealing ring; 13. anti-rotation key; 14. annular boss; 141. first conical surface; 142. second conical surface; 15. third conical surface; 16. third sealing ring; 17. concave ring; 171. fourth sealing ring; 31. welding cup. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] like Figure 1-3 As shown, the underwater electrical connector assembly of the present application includes a housing 1 and a base 2 arranged in the housing 1. The inner wall of the housing 1 has a circle of annular bosses 14 arranged in the circumferential direction. The tail of the base 2 is limited to the front side of the annular boss 14. The front end surface of the annular boss 14 is a first conical surface 141 whose inner diameter gradually decreases from front to back. The tail of the base 2 has a second conical surface 142 matching the first conical surface 141, so that the front end surface of the annular boss 14 is in conical contact with the tail of the base 2. In an underwater high-pressure environment, when the front end of the base 2 is subjected to water pressure, the conical surfaces 141 and 142 can convert part of the axial force into radial force, thereby reducing the shear force generated between the base 2 and the annular boss 14, which can reduce the damage to the base 2 and the annular boss 14, thereby improving the stability of the electrical connector assembly.

[0025] like Figure 3 As shown, the first conical surface 141 is provided with an anti-rotation key 13, the second conical surface 142 is provided with a recess matched with the anti-rotation key 13, and the anti-rotation key 13 is embedded in the recess to prevent the base 2 from rotating in the shell.

[0026] The side wall of the shell 1 at the tail position behind the annular boss 14 is a third conical surface 15, and the inner diameter of the third conical surface 15 gradually decreases from front to back. This structure can gradually increase the thickness of the tail side wall of the shell 1. In an underwater high-pressure environment, the outer wall of the shell 1 is subjected to water pressure. Increasing the thickness of the shell 1 can resist the water pressure and make the structure of the electrical connector more stable.

[0027] The electrical connector assembly further includes a contact 3 that penetrates the base 2 from front to back and a docking connector 5 docked at the front end of the housing 1. The front end of the contact 3 is a pin that docks with the jack of the docking connector 5, and the rear end of the contact 3 is a solder cup 31 for soldering the wire. The inner wall of the housing 1 is provided with a circle of concave rings 17 along the circumferential direction, and a fourth sealing ring 171 is provided in the concave ring 17. The fourth sealing ring 171 is used to seal the housing 1 and the shell of the docking connector 5 when the housing 1 and the docking connector 5 are docked.

[0028] Usually, after the housing 1 is docked with the housing of the docking connector 5, the interior of the housing 1 is in a sealed state, and the front end of the base 2 will not be subjected to external water pressure. However, when the sealing state between the housing 1 and the docking connector 5 is destroyed, the front end of the base 2 will be subjected to external water pressure, causing the tail of the base 2 to squeeze the annular boss 14. In the present application, since the contact surface between the tail of the base 2 and the annular boss 14 is a conical contact surface, the conical contact surface can convert part of the axial force into a radial force, thereby reducing the shear force between the base 2 and the annular boss 14, reducing the damage of the shear force to the base 2 and the housing 1, and improving the stability of the structure of the electrical connector assembly.

[0029] like Figure 3 As shown, the inner wall of the housing 1 is also provided with a circle of first sealing ring 4 along the circumferential direction, and the housing 1 and the base 2 are sealed by the first sealing ring 4. The outer wall of the housing 1 is provided with a circle of flange 11 along the circumferential direction, and the rear end face of the flange 11 is provided with a circle of second sealing ring 12 along the circumferential direction. The outer wall of the housing 1 is located at the rear side of the flange 11, and a third sealing ring 16 is provided along the circumferential direction.

[0030] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. An underwater electrical connector assembly, characterized in that: The electrical connector assembly comprises a housing (1) and a base (2) arranged in the housing (1); the inner wall of the housing (1) has a circle of annular bosses (14) arranged along the circumferential direction; the rear end of the base (2) is limited at the front side of the annular boss (14); the front end surface of the annular boss (14) is a first conical surface (141) whose inner diameter gradually decreases from front to back; the rear end of the base (2) has a second conical surface (142) matching the first conical surface (141).

2. The underwater electrical connector assembly according to claim 1, characterized in that: An anti-rotation key (13) is arranged on the first conical surface (141), and a recessed portion cooperating with the anti-rotation key (13) is arranged on the second conical surface (142). The anti-rotation key (13) is embedded in the recessed portion to prevent the base (2) from rotating in the shell.

3. The underwater electrical connector assembly according to claim 1, characterized in that: The side wall of the housing (1) at the rear portion of the annular boss (14) is a third conical surface (15), and the inner diameter of the third conical surface (15) gradually decreases from front to back.

4. The underwater electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly also includes a contact piece (3) which penetrates the base (2) from front to back.

5. The underwater electrical connector assembly according to claim 4, characterized in that: The electrical connector assembly also includes a docking connector (5) docked at the front end of the housing (1).

6. The underwater electrical connector assembly according to claim 5, characterized in that: The front end of the contact piece (3) is a pin for docking with the socket of the docking connector (5), and the rear end of the contact piece (3) is a soldering cup (31) for soldering the wire.

7. The underwater electrical connector assembly according to claim 1, characterized in that: A first sealing ring (4) is also provided on the inner wall of the outer shell (1) along the circumferential direction, and the outer shell (1) and the base (2) are sealed by the first sealing ring (4).

8. The underwater electrical connector assembly according to claim 1, characterized in that: The outer wall of the housing (1) is provided with a flange (11) along the circumferential direction, and the rear end surface of the flange (11) is provided with a second sealing ring (12) along the circumferential direction.

9. The underwater electrical connector assembly according to claim 8, characterized in that: The outer wall of the housing (1) is located at the rear side of the flange (11), and a third sealing ring (16) is arranged along the circumference.

10. The underwater electrical connector assembly according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a circle of concave ring (17) along the circumferential direction, and a fourth sealing ring (171) is provided inside the concave ring (17). The fourth sealing ring (171) is used to seal the outer shell (1) and the shell of the docking connector (5) when the outer shell (1) and the docking connector (5) are docked.

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