CN212968269U

CN212968269U - Radio frequency coaxial connector shell

Info

Publication number: CN212968269U
Application number: CN202022053796.0U
Authority: CN
Inventors: 杨通举; 陈银海; 胡万祥; 钟周铭
Original assignee: Dongguan Zhengkun Precision Products Co ltd
Current assignee: Dongguan Zhengkun Precision Products Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-13
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a radio frequency coaxial connector shell, which comprises a shell body, wherein a through hole axially penetrates through the shell body, an opening at one end of the through hole is radially expanded to form an installation cavity, and a waterproof ring for preventing water from entering an electronic device along the outer wall of a connector main body is arranged in the installation cavity; the outer wall of one end of the shell body is provided with a thread part, the thread pitches among the threads in the thread part are equal, and the thread thicknesses of the threads are gradually decreased from front to back. By sequentially reducing the thickness of each thread in the thread part from front to back, the structure changes the rigidity of the thread and provides resistance for each thread, thereby overcoming the phenomenon that only the front 1 to 2 threads are mainly stressed, particularly the first thread is stressed most, improving the stress state of threaded connection and prolonging the service life of a product; and be provided with waterproof circle in the installation cavity, waterproof circle effectively avoids water to take place the short circuit along connector main part outer wall in flowing into electron device to avoid electron device.

Description

Radio frequency coaxial connector shell

Technical Field

The utility model belongs to the technical field of the radio frequency connector and specifically relates to indicate a radio frequency coaxial connector shell.

Background

The rf coaxial connector is a component attached to a cable or mounted on an instrument, and is an important component of an electrical connector as a component for electrical connection or separation of transmission lines, and is currently developed in the direction of standardization, serialization, and universalization.

Along with the miniaturization of the whole system, the volume of the radio frequency coaxial connector is smaller and smaller, the frequency is higher and higher, and the functions are more and more. The thread sleeve in the shell of the radio frequency coaxial connector on the market at present is designed into threads, and in the thread screwing connection process of the threads, force is firstly transmitted to the first thread, then transmitted to the second thread and then gradually transmitted to the back thread. Because the sizes of all the threads are the same, the rigidity of all the threads is the same, and for the thread structure with the same size of all the threads, the load transmitted by the first thread is the largest, and the stress concentration of the root part of the first thread is the most serious. For the thread structure with the same size of each thread, the load transmitted by the second thread is smaller than that of the first thread, the load transmitted by the subsequent threads is gradually reduced, the stress concentration phenomenon of the threads is gradually weakened, and the load is mainly concentrated on the first two threads and is completely transmitted, so that the damage to the first threads is high.

And water may flow into the electronic device from between the outer wall of the connector body and the gap of the housing, thereby causing a short circuit of the electronic device.

Disclosure of Invention

In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a radio frequency coaxial connector housing, which solves the problem of short circuit of an electronic device caused by the damage of the front several screw threads and the water flowing into the electronic device due to the load.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a radio frequency coaxial connector shell comprises a shell body, wherein a through hole penetrates through the shell body in the axial direction, an opening at one end of the through hole is radially expanded to form a mounting cavity, and a waterproof ring for preventing water from entering an electronic device along the outer wall of a connector main body is arranged in the mounting cavity; the outer wall of one end of the shell body is provided with a thread part, the thread pitches among the threads in the thread part are equal, and the thread thickness of each thread is gradually reduced from front to back.

Preferably, the inner wall of the outer opening of the mounting cavity is an inclined plane which is convenient for the waterproof ring to be mounted.

As a preferred scheme, the outer wall of the waterproof ring is provided with an annular convex part, correspondingly, the inner wall of the mounting cavity is concavely provided with an annular groove, and the annular convex part extends into the annular groove for fixing.

Preferably, the housing body comprises a nut part and a barrel part which are integrally connected, and the mounting cavity is located in the nut part; the thread part is positioned on the outer wall of the barrel part.

Preferably, the inner wall of the through hole is provided with a limiting rib protruding inwards for limiting the connector body.

Preferably, a hook groove for fixing the connector body is formed on the inner wall of the through hole, and the hook groove is located on the outer side of the limiting rib.

Preferably, the thickness difference between adjacent threads in the thread part is 0.1-0.3 mm.

Preferably, the difference between the maximum tooth thickness and the minimum tooth thickness of the screw teeth is 1 to 3 mm.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

by sequentially reducing the thickness of each thread in the thread part from front to back, the structure changes the rigidity of the thread and provides resistance for each thread, thereby overcoming the phenomenon that only the front 1 to 2 threads are mainly stressed, particularly the first thread is stressed most, improving the stress state of threaded connection and prolonging the service life of a product; and be provided with waterproof circle in the installation cavity, waterproof circle effectively avoids water to take place the short circuit along connector main part outer wall in flowing into electron device to avoid electron device.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a preferred embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

The attached drawings indicate the following:

10. case body 101, through hole

102. Mounting cavity 103, annular groove

104. Screw thread part 11, nut part

12. Barrel 13, limiting flange

14. Hook groove 20, waterproof ring

21. An annular protrusion.

Detailed Description

Referring to fig. 1 to 3, a specific structure of a preferred embodiment of the present invention is shown, which includes a housing body 10.

The housing body 10 has a through hole 101 axially extending therethrough, and the through hole 101 is used for mounting a connector main body. And one end opening of the through hole 101 is radially enlarged to form an installation cavity 102, a waterproof ring 20 for preventing water from entering the electronic device along the outer wall of the connector main body is arranged in the installation cavity 102, and the waterproof ring 20 effectively prevents the water from flowing into the electronic device along the outer wall of the connector main body, so that the electronic device is prevented from short circuit. The inner wall of the outer opening of the installation cavity 102 is an inclined plane which is convenient for waterproof ring installation; and the outer wall of the waterproof ring 20 is provided with an annular convex part 21, correspondingly, the inner wall of the mounting cavity 102 is concavely provided with an annular groove 103, and the annular convex part 21 extends into the annular groove 103 for fixing, so that the mounting stability of the waterproof ring 20 in the mounting cavity 102 is ensured.

The outer wall of one end of the shell body 10 is provided with the thread part 104, the thread pitches among the threads in the thread part 104 are equal, and the thread thicknesses of the threads are gradually decreased from front to back in sequence, so that the structure changes the thread rigidity, provides resistance for the threads, and further overcomes the phenomenon that only the front 1 to 2 threads are mainly stressed, particularly the first thread is stressed most, and further improves the stress state of threaded connection. In the present embodiment, the thickness difference between adjacent threads in the thread part 104 is 0.1 to 0.3 mm. And the difference between the maximum tooth thickness and the minimum tooth thickness of the screw teeth is 1 to 3 mm.

The shell body 10 comprises a nut part 11 and a barrel part 12 which are integrally connected, and the installation cavity 102 is positioned in the nut part 11; the thread part 104 is located on the outer wall of the barrel part 12. The inner wall of the through hole 101 is provided with a limiting rib 13 which protrudes inwards and is used for limiting the connector body. The inner wall of the through hole 101 is provided with a hook groove 14 for fixing the connector body, and the hook groove 14 is positioned outside the limit rib 13.

The utility model discloses a design focus lies in: by sequentially reducing the thickness of each thread in the thread part from front to back, the structure changes the rigidity of the thread and provides resistance for each thread, thereby overcoming the phenomenon that only the front 1 to 2 threads are mainly stressed, particularly the first thread is stressed most, improving the stress state of threaded connection and prolonging the service life of a product; and be provided with waterproof circle in the installation cavity, waterproof circle effectively avoids water to take place the short circuit along connector main part outer wall in flowing into electron device to avoid electron device.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A radio frequency coaxial connector housing, comprising: the connector comprises a shell body, wherein a through hole axially penetrates through the shell body, an opening at one end of the through hole is radially expanded to form an installation cavity, and a waterproof ring for preventing water from entering an electronic device along the outer wall of a connector main body is arranged in the installation cavity; the outer wall of one end of the shell body is provided with a thread part, the thread pitches among the threads in the thread part are equal, and the thread thicknesses of the threads are gradually decreased from front to back.

2. The radio frequency coaxial connector housing of claim 1, wherein: the inner wall of the opening at the outer side of the mounting cavity is an inclined plane which is convenient for waterproof ring mounting.

3. The radio frequency coaxial connector housing of claim 1, wherein: the outer wall of the waterproof ring is provided with an annular convex part, correspondingly, an annular groove is concavely arranged on the inner wall of the mounting cavity, and the annular convex part extends into the annular groove to be fixed.

4. The radio frequency coaxial connector housing of claim 1, wherein: the shell body comprises a nut part and a barrel part which are integrally connected, and the installation cavity is positioned in the nut part; the thread part is positioned on the outer wall of the barrel part.

5. The radio frequency coaxial connector housing of claim 1, wherein: and a limiting flange used for limiting the connector main body is inwards and convexly extended out of the inner wall of the through hole.

6. The radio frequency coaxial connector housing of claim 5, wherein: and a hook groove used for fixing the connector main body is formed in the inner wall of the through hole and is positioned on the outer side of the limiting flange.

7. The radio frequency coaxial connector housing of claim 1, wherein: the tooth thickness difference of adjacent screw teeth in the screw tooth part is 0.1-0.3 mm.

8. The radio frequency coaxial connector housing of claim 1, wherein: the difference between the maximum tooth thickness and the minimum tooth thickness of the screw teeth is 1 to 3 mm.