SMA type connector with thread waterproof function
By introducing a combined structure of backplane and waterproof gasket into the SMA type connector, the dual waterproof function is realized, which solves the problem of water vapor penetration and improves the RF signal transmission performance and the repairability of the connector.
Patent Information
- Application Number
- CN202422371541.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-27
AI Technical Summary
After long-term use of existing SMA connectors, water vapor is prone to penetrate through the thread gap, affecting the RF signal transmission performance, and insufficient maintenance and removability.
A SMA type connector with threaded waterproof function was designed. By introducing a combined structure of a back plate and a waterproof washer into the connector, the threaded connection is used to achieve double waterproof effect, and maintain good detachability and maintenance.
Significantly improves the waterproof performance of the connector, extends service life, reduces maintenance costs, and improves repairability and removability.
Smart Images
Figure CN223124282U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of magnetic field components, and particularly relates to an SMA connector with a threaded waterproof function. Background Art
[0002] Radio frequency connectors are important components in electronic devices in the radio frequency and microwave fields. They are widely used in information interaction between devices in the radio frequency and microwave industries. Similar products of SMA connectors include various derivative types such as SSMA, K, 2.92, 2.4, N, and TNC types, and are one of the most widely used components in this industry. In actual use, SMA connectors generally consist of a male head (SMA-J type) and a female head (SMA-K type) used in pairs and assembled together. When they are assembled together, they realize the function of conducting radio frequency signals, and when they are disassembled, they realize the function of disconnecting radio frequency signals.
[0003] Radio frequency and microwave communication equipment has a large number of application requirements in both civilian and military directions, and its application environment covers various occasions such as indoor, outdoor, airborne, plateau, and maritime. Correspondingly, as an interconnection medium between devices, SMA connectors are often exposed to the outside, outdoors, or even in water. In order to maintain radio frequency performance without being affected by water ingress, the waterproof ability of SMA connectors is an urgent need. In the prior art, the SMA-K type connector and the supporting SMA-JB2 type connector are screwed and fixed by threads. When it is exposed to the air or outdoors, since the threads cannot achieve 100% waterproofing, after long-term use, water vapor will penetrate from the thread gaps and enter the connector interior, resulting in the radio frequency signal transmission performance being affected.
[0004] Therefore, how to improve the existing SMA connectors to enhance their waterproof performance while making them have good maintainability and detachable performance is a technical problem that needs to be solved urgently at present. Content of the Utility Model
[0005] The purpose of the utility model is to provide an SMA connector with a threaded waterproof function, which improves the existing SMA connectors to enhance their waterproof performance while making them have good maintainability and detachable performance.
[0006] To solve the above technical problems, the technical solution adopted by the utility model is as follows:
[0007] An SMA connector with a threaded waterproof function includes a threaded waterproof SMA-K type connector and a waterproof SMA-J type connector, and the threaded waterproof SMA-K type connector is detachably connected to the waterproof SMA-J type connector by a threaded manner;
[0008] The threaded waterproof SMA-K type connector includes a first connector body, a backplane, a waterproof gasket, and a first threaded connection portion. The first threaded connection portion is provided at the end of the first connector body. The backplane and the waterproof gasket are both sleeved on the first connector body, and the backplane is fixedly connected to the first connector body. The waterproof gasket is closely arranged with the backplane, and the waterproof gasket is closely attached to the side of the backplane close to the first threaded connection portion. The waterproof gasket and the backplane are spaced apart from the first threaded connection portion;
[0009] The waterproof SMA-J type connector includes a second connector body and a pressing plate. The pressing plate is fixedly connected to the second connector body, and the size of the pressing plate matches the size of the backplane.
[0010] Preferably, the first connector body is a hollow cylinder, and the backplane, the pressing plate, and the waterproof gasket are all annular.
[0011] Preferably, the size of the waterproof gasket is smaller than the sizes of the backplane and the pressing plate, and the thickness of the waterproof gasket is 3 mm to 5 mm.
[0012] Preferably, the waterproof SMA-J type connector is internally provided with a second threaded connection portion. The thread of the second threaded connection portion is an internal thread, and the thread of the first threaded connection portion is an external thread. The external thread of the first threaded connection portion matches the internal thread of the second threaded connection portion.
[0013] Preferably, the distance between the first threaded connection portion and the backplane is equal to the distance between the second threaded connection portion and the pressing plate.
[0014] The SMA type connector with threaded waterproof function of the present utility model includes a threaded waterproof SMA-K type connector and a waterproof SMA-J type connector. The threaded waterproof SMA-K type connector and the waterproof SMA-J type connector are detachably connected by a threaded manner; the threaded waterproof SMA-K type connector includes a first connector body, a backplane, a waterproof gasket, and a first threaded connection portion. The first threaded connection portion is provided at the end of the first connector body. The backplane and the waterproof gasket are both sleeved on the first connector body. The waterproof gasket is closely arranged with the backplane, and the waterproof gasket is closely attached to the side of the backplane close to the first threaded connection portion. The waterproof gasket and the backplane are spaced apart from the first threaded connection portion; the waterproof SMA-J type connector includes a second connector body and a pressing plate. The pressing plate is fixedly connected to the second connector body, and the size of the pressing plate matches the size of the backplane. It effectively improves the waterproof performance, maintainability, and detachability of the SMA connector. Description of the Drawings
[0015] Figure 1Schematic diagram of the threaded waterproof SMA-K type connector with threaded waterproof function of the present utility model.
[0016] Figure 2 Schematic diagram of the waterproof SMA-J type connector with threaded waterproof function of the SMA type connector of the present utility model.
[0017] Reference numerals: 1 is the threaded waterproof SMA-K type connector; 2 is the waterproof SMA-J type connector; 10 is the first connector body; 11 is the backplane, 12 is the waterproof gasket; 13 is the first threaded connection part; 20 is the second connector body; 21 is the pressure plate; 22 is the second threaded connection part. Detailed implementation manners
[0018] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part rather than all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present application.
[0019] The following combines the attached Figure 1 and Figure 2 to further elaborate on the present utility model:
[0020] Refer to the attached Figure 1 and Figure 2As shown in the figure, an SMA connector with a threaded waterproof function includes a threaded waterproof SMA-K connector 1 and a waterproof SMA-J connector 2. The threaded waterproof SMA-K connector 1 and the waterproof SMA-J connector 2 are detachably connected by a threaded manner. The threaded waterproof SMA-K connector 1 includes a first connector body 10, a back plate 11, a waterproof gasket 12, and a first threaded connection portion 13. The first threaded connection portion 13 is provided at the end of the first connector body 10. The back plate 11 and the waterproof gasket 12 are both sleeved on the first connector body 10, and the back plate 11 is fixedly connected to the first connector body 10. The waterproof gasket 12 is closely arranged with the back plate 11, and the waterproof gasket 12 is closely arranged on the side of the back plate 11 close to the first threaded connection portion 13. The waterproof gasket 12 and the back plate 11 are spaced from the first threaded connection portion 13. The waterproof SMA-J connector 2 includes a second connector body 20 and a pressing plate 21. The pressing plate 21 is fixedly connected to the second connector body 20, and the size of the pressing plate 21 matches the size of the back plate 11.
[0021] During the installation process of the SMA connector with a threaded waterproof function, first, the first threaded connection portion 13 of the threaded waterproof SMA-K connector 1 passes through the pressing plate 21, so that the end of the first threaded connection portion 13 reaches the end of the second threaded connection portion 22 on the side close to the pressing plate 21. Then, the first threaded connection portion 13 is screwed into the second threaded connection portion 22. During the process of screwing the first threaded connection portion 13 into the second threaded connection portion 22, the pressing plate 21 and the back plate 11 will be pressed against each other, causing the waterproof ring to deform under force and be pressed tightly, thereby achieving the ability of threaded waterproofing. The SMA connector with a threaded waterproof function provided by the present invention, on the one hand, realizes the first-level waterproof function through the mutual cooperation of the first threaded connection portion 13 and the second threaded connection portion 22. On the other hand, through the mutual extrusion of the pressing plate 21 and the back plate 11, the waterproof ring is deformed under force and pressed tightly, thereby achieving the ability of threaded waterproofing and realizing the second-level waterproof function. Therefore, through the combination of the first-level waterproof function and the second-level waterproof function, the waterproof performance of the SMA connector during the working process is greatly improved, the service life of the SMA connector is increased, and the maintenance cost of the SMA connector is reduced.
[0022] The first connector body 10 is a hollow cylinder, and the backplane 11, the pressing plate 21, and the waterproof gasket 12 are all annular. The size of the waterproof gasket 12 is smaller than that of the backplane 11 and the pressing plate 21, and the thickness of the waterproof gasket 12 is 3 mm to 5 mm. The waterproof SMA-J type connector 2 is internally provided with a second threaded connection part 22, the thread of the second threaded connection part 22 is an internal thread, the thread of the first threaded connection part 13 is an external thread, and the external thread of the first threaded connection part 13 matches the internal thread of the second threaded connection part 22. The distance between the first threaded connection part 13 and the backplane 11 is equal to the distance between the second threaded connection part 22 and the pressing plate 21.
[0023] In summary, the SMA type connector with a threaded waterproof function of the present utility model includes a threaded waterproof SMA-K type connector 1 and a waterproof SMA-J type connector 2. The threaded waterproof SMA-K type connector 1 and the waterproof SMA-J type connector 2 are detachably connected by a threaded method; the threaded waterproof SMA-K type connector 1 includes a first connector body 10, a backplane 11, a waterproof gasket 12, and a first threaded connection part 13. The first threaded connection part 13 is arranged at the end of the first connector body 10. The backplane 11 and the waterproof gasket 12 are both sleeved on the first connector body 10. The waterproof gasket 12 is closely arranged with the backplane 11, and the waterproof gasket 12 is closely arranged on the side of the backplane 11 close to the first threaded connection part 13. The waterproof gasket 12 and the backplane 11 are spaced from the first threaded connection part 13; the waterproof SMA-J type connector 2 includes a second connector body 20 and a pressing plate 21. The pressing plate 21 is fixedly connected to the second connector body 20, and the size of the pressing plate 21 matches the size of the backplane 11. Through the combination of the first waterproof function and the second waterproof function, the waterproof performance of the SMA type connector during operation is greatly improved. At the same time, the service life of the SMA type connector is increased, the maintenance cost of the SMA type connector is reduced, and the maintainability and detachability are effectively improved.
[0024] The above embodiments only represent the specific implementation methods of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation of the protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the technical solution of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.
Claims
1. An SMA connector with a threaded waterproof function, characterized in that, It includes a threaded waterproof SMA-K type connector (1) and a waterproof SMA-J type connector (2), and the threaded waterproof SMA-K type connector (1) is detachably connected to the waterproof SMA-J type connector (2) by a threaded manner; The threaded waterproof SMA-K type connector (1) includes a first connector body (10), a back plate (11), a waterproof gasket (12) and a first threaded connection part (13). The first threaded connection part (13) is arranged at the end of the first connector body (10). The back plate (11) and the waterproof gasket (12) are both sleeved on the first connector body (10), and the back plate (11) is fixedly connected to the first connector body (10). The waterproof gasket (12) is closely arranged with the back plate (11), and the waterproof gasket (12) is closely attached to the side of the back plate (11) close to the first threaded connection part (13). The waterproof gasket (12) and the back plate (11) are spaced from the first threaded connection part (13); The waterproof SMA-J type connector (2) includes a second connector body (20) and a pressure plate (21). The pressure plate (21) is fixedly connected to the second connector body (20), and the size of the pressure plate (21) matches the size of the back plate (11).
2. The SMA type connector with a threaded waterproof function according to claim 1, wherein, The first connector body (10) is a hollow cylinder, and the back plate (11), the pressure plate (21) and the waterproof gasket (12) are all annular.
3. The SMA connector with a threaded waterproof function according to claim 2, characterized in that, The size of the waterproof gasket (12) is smaller than the sizes of the back plate (11) and the pressure plate (21), and the thickness of the waterproof gasket (12) is 3 mm to 5 mm.
4. A SMA type connector with a threaded waterproof function according to claim 1, characterized in that, A second threaded connection part (22) is arranged inside the waterproof SMA-J type connector (2). The thread of the second threaded connection part (22) is an internal thread, and the thread of the first threaded connection part (13) is an external thread. The external thread of the first threaded connection part (13) matches the internal thread of the second threaded connection part (22).
5. The SMA type connector with a threaded waterproof function according to claim 4, characterized in that, The distance between the first threaded connection part (13) and the back plate (11) is equal to the distance between the second threaded connection part (22) and the pressure plate (21).