CN217788857U

CN217788857U - Novel single-hole plug connector

Info

Publication number: CN217788857U
Application number: CN202220818583.9U
Authority: CN
Inventors: 陈壮; 李富盛; 祁程菲; 李威; 施重庆
Original assignee: Amphenol Changzhou Advanced Connector Co Ltd
Current assignee: Amphenol Changzhou Advanced Connector Co Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-11-11
Anticipated expiration: 2032-04-11

Abstract

The utility model relates to the technical field of plug connectors, in particular to a novel single-hole plug connector, which is characterized by comprising a plastic shell and a metal shell; the metal housing comprises a cylindrical structure; the left side and the right side of the cylindrical structure are provided with a first projection, and the upper surface and the lower surface of the cylindrical structure are provided with a second projection; a first concave part is arranged at the joint of the first convex block and the metal shell; a second concave part is arranged at the joint of the second bump and the metal shell; the plastic shell comprises two groups of first clamping hooks and through holes; the inner wall of the through hole II is provided with a convex part and a notch; the first clamping hook comprises a clamping hook arm and a clamping hook head; the two groups of clamping hooks are symmetrically arranged, and the two groups of clamping hook arms are connected through a fixed inclined plate; the wall thickness of the hook arm is smaller than that of the hook head; the thickness of the hook head begins to increase gradually due to the connection part of the metal shell. The utility model has the advantages that the clamping hook is ensured not to be damaged due to stress concentration; effectively guarantee the holding power between the casing and reduce the insertion force between the casing, avoid the casing radial atress to damage.

Description

Novel single-hole plug connector

Technical Field

The utility model belongs to the technical field of the plug connector technique and specifically relates to a novel haplopore plug connector.

Background

The conventional connector is generally provided with a hook structure on a plastic shell, a concave part and a convex part structure on a metal shell, and the hook of the plastic shell is buckled in the concave part of the metal shell and is hung on the convex part of the metal shell. The existing plastic shell or metal shell is of a full-circle convex structure, and under the condition, the insertion force is large, so that the shell is easily burst and damaged; or the root line of all the convex structures of the plastic shell ring is not more than one third of the circumference of the whole ring, under the condition, the convex structures are weaker and easy to damage, and after being buckled in place, the hanging surface is small, and the holding force is small; the existing hook is usually a cantilever beam structure and is easily subjected to radial extrusion deformation of a metal shell, so that the root stress concentration of a hook cantilever can cause damage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the current not enough, the utility model provides a novel haplopore plug connector.

The utility model provides a technical scheme that its technical problem adopted is: a novel single-hole plug connector is characterized by comprising a plastic shell and a metal shell; the metal housing comprises a cylindrical structure; the left side and the right side of the cylindrical structure are provided with a first projection, and the upper surface and the lower surface of the cylindrical structure are provided with a second projection; a first concave part is arranged at the joint of the first bump and the metal shell; a second concave part is arranged at the joint of the second bump and the metal shell; the plastic shell comprises two groups of first clamping hooks and through holes; the inner wall of the through hole II is provided with a convex part and a notch; the first clamping hook comprises a clamping hook arm and a clamping hook head; the two groups of clamping hooks are symmetrically arranged, and the two groups of clamping hook arms are connected through a fixed inclined plate; the wall thickness of the hook arm is smaller than that of the hook head; the thickness of the hook head begins to gradually increase due to the connection part of the metal shell; the plastic shell and the metal shell move axially relative to each other until the hook head reaches the position of the first concave part of the metal shell and the convex part of the through hole reaches the position of the second concave part of the metal shell; due to the fact that the hook head is hung with the first metal shell protruding block, the protruding portion of the through hole is hung with the second metal shell protruding block.

According to another embodiment of the present invention, further comprising that the axial direction is an extending direction of the tubular structure.

According to the utility model discloses a further embodiment, further include, the convex part and the breach of the inside volume of through-hole are that the interval is adjacent, the breach line length is not more than the convex part line length, is greater than the third of full circle girth.

According to another embodiment of the present invention, further comprising two symmetrical sets of second hooks are disposed above the metal shell; two groups of grooves are arranged on the fixed inclined plate of the plastic shell; the groove is matched with the clamping hook.

According to the utility model discloses a further embodiment, further include, fixed swash plate, pothook arm and pothook head are connected on the plastic casing integratively.

According to the utility model discloses a further embodiment, further include, the metal casing below is equipped with the supporting legs.

The utility model has the advantages that when the hook deforms under stress, the interference amount of the hook arms connected with the wall thickness is smaller than that of the hook head; the connecting structure of the hook and the main body in the thickness direction decomposes a part of stress, and ensures that the hook arm cannot be damaged due to stress concentration; the reasonable distribution of the number and the length of the notches and the convex parts can effectively ensure the holding force between the shells, reduce the insertion force between the shells and avoid the radial stress damage of the shells.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a side view of the plastic housing;

FIG. 3 is a front view of the metal shell;

FIG. 4 is a front view of the plastic housing assembled with the metal housing;

FIG. 5 is a top view of the plastic housing assembled with the metal housing;

FIG. 6 is a schematic view of a prior art full circle protrusion configuration;

figure 7 is a schematic view of a prior art cantilever beam structure.

In the figure, the device comprises a plastic shell 1, a plastic shell 2, a metal shell 3, a cylindrical structure 4, a first projection, a second projection 6, a first recess, a second recess 7, a second recess 8, a first hook 8-1, a hook arm 8-2, a hook head 9, a through hole 10, a convex part 11, a fixed inclined plate 12, a notch 13, a second hook 14, a groove 15 and a supporting leg.

Detailed Description

Fig. 1 is a schematic structural diagram of the present invention, and a novel single-hole plug connector is characterized by comprising a plastic shell 1 and a metal shell 2; the metal housing 2 comprises a cylindrical structure 3; the left side and the right side of the cylindrical structure 3 are provided with a first bump 4, and the upper surface and the lower surface of the cylindrical structure are provided with a second bump 5; a concave part I6 is arranged at the joint of the convex block I4 and the metal shell 2; a second concave part 7 is arranged at the joint of the second bump 5 and the metal shell 2; the plastic shell 1 comprises two groups of first clamping hooks 8 and a through hole 9; the inner walls of the two through holes 9 are provided with convex parts 10 and gaps 12; the first clamping hook 8 comprises a clamping hook arm 8-1 and a clamping hook head 8-2; the two groups of first clamping hooks 8 are symmetrically arranged, and the two groups of clamping hook arms 8-1 are connected through a fixed inclined plate 11; the wall thickness of the hook arm 8-1 is small Yu Ka hook head 8-2; the thickness of the hook head 8-2 begins to gradually increase due to the connection of the metal shell 2; the plastic shell 1 and the metal shell 2 move axially relative to each other until the hook head 8-2 reaches the position of the first concave part 6 of the metal shell 2 and the convex part 10 of the through hole 9 reaches the position of the second concave part 7 of the metal shell 2; due to the fact that the hook head 8-2 is abutted against the first bump 4 of the metal shell 2, the convex part 10 of the through hole 9 is abutted against the second bump 5 of the metal shell 2.

Specifically, the hook wall 8-1 of the plastic shell 1 is connected with the main body in the thickness direction; the thickness and the length of the hook arm 8-1 depend on the material of the first hook 8 and the mechanical analysis under the condition of interference amount, and an optimal solution is selected; the structure of the hook head 8-2 requires that the mutual interference amount is gradually increased from the thickness connection part, and the linear transition and the nonlinear transition can be realized; when the first clamping hook 8 of the plastic shell 1 deforms under stress, the interference amount of the clamping hook arm 8-1 connected with the wall thickness is smaller than that of the clamping hook head 8-2; the first clamping hook 8 of the plastic shell 1 and the connecting structure of the main body of the plastic shell 1 in the thickness direction decompose part of stress, and the root of the first clamping hook 8 is ensured not to be damaged due to stress concentration.

According to another embodiment of the present invention, it further comprises that the axial direction is an extending direction of the tubular structure 3.

According to the utility model discloses a further embodiment, further include, the convex part 10 and the breach 12 of the inside volume of through-hole 9 are that the interval is adjacent, breach 12 line length is not more than convex part 10 line length, is greater than the third of full circle girth.

Specifically, the cylindrical structure 3 and the through hole 9 may be in a closed state, may be circular, or may have other shapes; at least one of the plastic shell 1 and the metal shell 2 is a plastic part, and when the plastic part and the metal shell are in interference fit, the plastic part can be plastically deformed, so that the convex part structure is not sheared and damaged; the convex part 10 and the gap 12 on the plastic shell 1 are adjacent at intervals, and the length of the gap 12 is not more than the length of the convex part 10 and is more than one third of the whole circle. The reasonable distribution of the number and the length of the notches 12 and the protrusions 10 can effectively ensure the holding force between the shells, reduce the insertion force between the plastic shell 1 and the metal shell 2 and avoid the radial stress damage of the shells.

According to another embodiment of the present invention, further comprising two sets of symmetrical hooks 13 are disposed above the metal shell 2; two groups of grooves 14 are arranged on the fixed inclined plate 11 of the plastic shell 1; the groove 14 is matched with the second hook 13.

According to another embodiment of the present invention, further comprising that the fixed inclined plate 11, the hook arm 8-1 and the hook head 8-2 are integrally connected to the plastic housing 1.

According to the utility model discloses a further embodiment, further include, metal casing 2 below is equipped with supporting legs 15.

In the specific operation process, the through hole 9 of the plastic shell 1 corresponds to the cylindrical structure 3 of the metal shell 2; the hook head 8-1 of the plastic shell 1 is locked with the first concave part 6 through the first convex part 4 of the metal shell 2, the convex part 10 in the through hole 9 of the plastic shell 1 is locked with the second concave part 7 of the metal shell 2, and the second hook 13 of the metal shell 2 is locked in the groove 14 of the plastic shell 1.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A novel single-hole plug connector is characterized by comprising a plastic shell (1) and a metal shell (2); the metal housing (2) comprises a cylindrical structure (3); the left side and the right side of the cylindrical structure (3) are provided with a first bump (4), and the upper surface and the lower surface of the cylindrical structure are provided with a second bump (5); a concave part I (6) is arranged at the joint of the convex block I (4) and the metal shell (2); a second concave part (7) is arranged at the joint of the second convex block (5) and the metal shell (2); the plastic shell (1) comprises two groups of first clamping hooks (8) and through holes (9); the inner walls of the two through holes (9) are provided with convex parts (10) and notches (12); the first clamping hook (8) comprises a clamping hook arm (8-1) and a clamping hook head (8-2); the two groups of first clamping hooks (8) are symmetrically arranged, and the two groups of clamping hook arms (8-1) are connected through a fixed inclined plate (11); the wall thickness of the hook arm (8-1) is smaller than that of the hook head (8-2); the thickness of the hook head (8-2) begins to increase gradually due to the connection of the metal shell (2); the plastic shell (1) and the metal shell (2) axially move relative to each other until the hook head (8-2) reaches the position of the first concave part (6) of the metal shell (2) and the convex part (10) of the through hole (9) reaches the position of the second concave part (7) of the metal shell (2); due to the fact that the hook head (8-2) is hung with the first projection (4) of the metal shell (2), the convex part (10) of the through hole (9) is hung with the second projection (5) of the metal shell (2).

2. A new single-hole plug connector according to claim 1, characterized in that the axial direction is the direction of extension of the cylindrical structure (3).

3. A new single-hole plug connector according to claim 1, characterized in that the protrusions (10) and the notches (12) of the inner portion of the through hole (9) are adjacent to each other at intervals, and the length of the notch (12) is not more than the length of the protrusion (10) and is more than one third of the whole circle.

4. The novel single-hole plug connector of claim 1, wherein two symmetrical sets of second hooks (13) are arranged above the metal shell (2); two groups of grooves (14) are arranged on a fixed inclined plate (11) of the plastic shell (1); the groove (14) is matched with the second hook (13).

5. The new single-hole plug connector as claimed in claim 1, characterized in that the fixed ramp (11), the latching arm (8-1) and the latching hook (8-2) are integrally connected to the plastic housing (1).

6. The new single-hole plug connector according to claim 1, characterized in that support feet (15) are provided below the metal housing (2).