Broadband low-intermodulation connector

Abstract

The utility model discloses a broadband low intermodulation connector belongs to the technical field of connector, and its technical scheme main points include the connector body, the top of connector body inboard installs dynamic pre -tension mechanism, the top and bottom of connector body inner wall all are set up with the anti -loose mechanism, dynamic pre -tension mechanism includes disc spring, connector, several slide holes and several limit rods, the top of connector body inboard is installed to disc spring, and disc spring in dynamic pre -tension mechanism can automatically compensate the pre -tension fluctuation of vibration, temperature change or the plugging wear and tear through the elastic deformation, ensure that the contact pressure between connector and the docking equipment always keeps stable, avoid the contact resistance mutation, and the guiding effect of cooperation slide hole and limit rod, limit the radial deviation of connector, guarantee the coaxiality of inner and outer conductor contact, reduce signal reflection and loss to maintain the low intermodulation performance in broadband.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a wideband low intermodulation connector. Background Technology

[0002] Wideband low intermodulation connectors are connectors used for radio frequency signal transmission. They are characterized by operating over a wide frequency range and effectively reducing intermodulation products. Wideband low intermodulation connectors are widely used in a wide range of applications, including equipment, cables, and systems in communications, aerospace, defense, and other fields. Their performance directly affects the quality of the entire signal transmission link.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing connectors lack a mechanism for dynamic pre-tightening when connected to a device, causing the pre-tightening force at the connection interface to fluctuate due to vibration, temperature changes, or wear from insertion and removal, thereby affecting the signal integrity of the connector.

[0004] To address this, a wideband low intermodulation connector is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a wideband, low intermodulation connector that solves the problem that existing connectors lack a mechanism for dynamic pre-tightening when connected to a device, causing the pre-tightening force at the connection interface to fluctuate due to vibration, temperature changes, or wear from insertion and removal, thereby affecting the signal integrity of the connector.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wideband low intermodulation connector, comprising a connector body, a dynamic pre-tightening mechanism installed on the top of the inner side of the connector body, and anti-loosening mechanisms provided on the top and bottom of the inner wall of the connector body. The dynamic pre-tightening mechanism includes a disc spring, a connector head, several sliding holes, and several limiting rods. The disc spring is installed on the top of the inner side of the connector body, the connector head is fixedly connected to the top of the disc spring, the sliding holes are opened on the inner side of the connector head, the limiting rods are welded to the top of the connector body, and the sliding holes are slidably connected to the surface of the limiting rods.

[0007] Preferably, the anti-loosening mechanism includes several movable holes, a return spring, and a retaining ball, wherein the movable holes are respectively opened at the top and bottom of the inner wall of the connector body.

[0008] Preferably, the reset spring is installed inside the movable hole, and the retaining bead is movably connected to the inside of the movable hole.

[0009] Preferably, the side of the return spring away from the movable hole is fixedly connected to the surface of the snap-fit ​​bead, and the surface of the return spring is coated with an anti-corrosion coating.

[0010] Preferably, a limiting ring is welded to the top of the limiting rod, and the surface of the limiting ring is coated with an anti-corrosion coating.

[0011] Preferably, a sealing ring is fixedly connected to the top of the connector, and the sealing ring is made of fluororubber material.

[0012] Preferably, an adjusting nut is threaded onto the top surface of the connector body, and the top of the adjusting nut is threaded onto the surface of the connector head.

[0013] Preferably, a plurality of heat dissipation fins are welded to the surface of the connector body, and the surface of the heat dissipation fins is coated with thermally conductive silicone.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The disc spring in the dynamic pre-tightening mechanism of this application can automatically compensate for the pre-tightening force fluctuation caused by vibration, temperature change or insertion and removal wear through elastic deformation, ensuring that the connector and the docking equipment always maintain a stable contact pressure, avoiding sudden changes in contact resistance. With the guiding effect of the sliding hole and the limiting rod, it limits the radial displacement of the connector, ensures the coaxiality of the inner and outer conductors, reduces signal reflection and loss, and thus maintains low intermodulation performance in a wide frequency band.

[0016] 2. In the anti-loosening mechanism of this application, the return spring in the movable hole continuously applies radial force to the locking ball, so that the locking ball and the slot of the docking device are tightly engaged to form a mechanical lock. Combined with the axial preload of the dynamic preload mechanism, it forms a double anti-loosening structure of axial preload and radial locking. Even in high-frequency vibration environment, it can prevent relative rotation or slippage between the connector and the device, and solve the problem of easy loosening of traditional threaded connections. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the broadband low intermodulation connector of this utility model;

[0018] Figure 2 This is a schematic diagram of the dynamic pre-tensioning mechanism of this utility model;

[0019] Figure 3 This is a disassembly diagram of the connector body of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the reset spring of this utility model.

[0022] In the diagram, 1. Connector body; 2. Dynamic pre-tightening mechanism; 21. Disc spring; 22. Connector head; 23. Sliding hole; 24. Limiting rod; 3. Anti-loosening mechanism; 31. Movable hole; 32. Return spring; 33. Snap-fit ​​bead; 4. Limiting ring; 5. Sealing ring; 6. Adjusting nut; 7. Heat dissipation fins. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A wideband low intermodulation connector includes a connector body 1. A dynamic pre-tightening mechanism 2 is installed on the top of the inner side of the connector body 1. Anti-loosening mechanisms 3 are provided on the top and bottom of the inner wall of the connector body 1. The dynamic pre-tightening mechanism 2 includes a disc spring 21, a connector head 22, a plurality of sliding holes 23 and a plurality of limiting rods 24. The disc spring 21 is installed on the top of the inner side of the connector body 1. The connector head 22 is fixedly connected to the top of the disc spring 21. The sliding holes 23 are opened on the inner side of the connector head 22. The limiting rods 24 are welded to the top of the connector body 1. The sliding holes 23 are slidably connected to the surface of the limiting rods 24.

[0026] In this embodiment: the connector body 1 provides an installation reference and support frame for the dynamic pre-tightening mechanism 2 and the anti-loosening mechanism 3, and is also a connection device that achieves wide-bandwidth and low intermodulation performance. The disc spring 21 can absorb external stresses such as vibration and displacement caused by thermal expansion and contraction through its own expansion and contraction, stabilizing the contact pressure of the connector head 22 within the optimal range, avoiding poor contact due to insufficient pre-tightening force or component damage due to excessive tightness. The connector head 22 directly contacts the docking device and is a key interface for signal transmission. Its rigid connection with the disc spring 21 can evenly transmit the pre-tightening force of the spring to the contact interface, ensuring the continuity of the signal transmission path. The sliding hole 23 and the limiting rod 24 cooperate to form a guide structure, restricting the connector head 22 to move only along the axial direction, avoiding contact eccentricity caused by radial shaking. The limiting rod 24 serves as a guide support for the sliding hole 23, and constrains the movement trajectory of the connector head 22 through sliding cooperation with the sliding hole 23, ensuring that the dynamic pre-tightening force is stably transmitted along the axial direction.

[0027] Specifically, such as Figure 4 , Figure 5As shown, the anti-loosening mechanism 3 includes several movable holes 31, a return spring 32, and a locking bead 33. The movable holes 31 are respectively opened at the top of the inner wall of the connector body 1 and the bottom of the inner wall of the connector body 1.

[0028] Specifically, such as Figure 4 , Figure 5 As shown, the return spring 32 is installed inside the movable hole 31, and the retaining bead 33 is movably connected to the inside of the movable hole 31.

[0029] Specifically, such as Figure 4 , Figure 5 As shown, the side of the return spring 32 away from the movable hole 31 is fixedly connected to the surface of the snap-fit ​​bead 33, and the surface of the return spring 32 is coated with an anti-corrosion coating.

[0030] In this embodiment: by setting the movable hole 31 as the mounting carrier for the return spring 32 and the locking ball 33, a stable receiving space and motion guide are provided for both. The return spring 32 provides a continuous elastic thrust to the locking ball 33, so that the locking ball 33 always maintains a tight engagement with the slot of the docking device. The anti-corrosion coating on its surface can resist the erosion of harsh environments such as humidity and salt spray, avoid the spring from rusting and failing, and extend the service life of the anti-loosening mechanism 3. Under the thrust of the return spring 32, the locking ball 33 can be embedded in the slot of the docking device to form a mechanical lock, preventing relative rotation or axial slippage between the connector and the device.

[0031] Specifically, such as Figure 5 As shown, a limiting ring 4 is welded to the top of the limiting rod 24, and the surface of the limiting ring 4 is coated with an anti-corrosion coating.

[0032] Specifically, such as Figure 5 As shown, a sealing ring 5 is fixedly connected to the top of the connector 22. The sealing ring 5 is made of fluororubber material.

[0033] In this embodiment: by setting a limiting ring 4, the axial movement of the connector 22 can be effectively limited, preventing the connector 22 from slipping out of the limiting rod 24 due to excessive sliding during dynamic pre-tightening. By setting an anti-corrosion coating, it can resist the erosion of water vapor, corrosive substances and other substances in the external environment, and extend the service life of the limiting ring 4. By setting a sealing ring 5, it can effectively block external dust, water vapor and other impurities from entering the internal contact area of ​​the connector, avoiding poor contact or signal transmission interference caused by contaminants. By setting the sealing ring 5 to be made of fluororubber material, fluororubber has excellent high and low temperature resistance, aging resistance and sealing performance.

[0034] Specifically, such as Figure 1 As shown, an adjusting nut 6 is threadedly connected to the top surface of the connector body 1, and the top of the adjusting nut 6 is threadedly connected to the surface of the connector head 22.

[0035] Specifically, such as Figure 1 As shown, several heat dissipation fins 7 are welded to the surface of the connector body 1, and the surface of the heat dissipation fins 7 is coated with thermally conductive silicone.

[0036] In this embodiment: by setting the adjusting nut 6, which is threadedly connected to the connector body 1 and the connector head 22, the position of the connector head 22 can be manually adjusted, thereby adjusting the compression of the disc spring 21 and realizing the control of dynamic preload. By setting the heat dissipation fins 7, the contact area between the connector and the outside world is increased, which helps to quickly dissipate the heat generated during the operation of the connector. By setting the thermally conductive silicone, the heat conduction efficiency can be further improved, avoiding the internal temperature of the connector from being too high due to heat accumulation, and preventing the material performance from being affected by high temperature and deteriorating.

[0037] Working principle: First, when the connector body 1 begins to connect with the docking device, the operator first contacts the connector head 22, which is the key interface for signal transmission, with the docking device. The operator then adjusts the compression of the disc spring 21 by rotating the adjusting nut 6, stabilizing the contact pressure of the connector head 22 within the optimal range to avoid poor contact due to insufficient preload or damage to components due to excessive tightness. Next, as the connection deepens, the connector head 22 is subjected to pressure from the docking device and moves into the connector body 1, causing the disc spring 21 to be compressed. During this process, the sliding hole 23 and the limiting rod 24 cooperate to form a guiding structure, restricting the connector head 22 to move only axially, preventing contact eccentricity due to radial wobbling. Finally, the return spring 32 is compressed during the connection process and generates elastic thrust, pushing the locking ball 33 towards the docking device. When the connection is in place, the locking ball 33 is embedded in the slot of the docking device under the thrust of the return spring 32, forming a mechanical lock to prevent relative rotation or axial slippage between the connector and the device, achieving an anti-loosening effect.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wideband low intermodulation connector, comprising a connector body (1), characterized in that: A dynamic pre-tightening mechanism (2) is installed on the top of the inner side of the connector body (1). Anti-loosening mechanisms (3) are provided on the top and bottom of the inner wall of the connector body (1). The dynamic pre-tightening mechanism (2) includes a disc spring (21), a connector head (22), several sliding holes (23) and several limiting rods (24). The disc spring (21) is installed on the top of the inner side of the connector body (1). The connector head (22) is fixedly connected to the top of the disc spring (21). The sliding hole (23) is opened on the inner side of the connector head (22). The limiting rod (24) is welded to the top of the connector body (1). The sliding hole (23) is slidably connected to the surface of the limiting rod (24).

2. The wideband low intermodulation connector according to claim 1, characterized in that: The anti-loosening mechanism (3) includes several movable holes (31), a return spring (32) and a locking bead (33). The movable holes (31) are respectively opened at the top and bottom of the inner wall of the connector body (1).

3. A wideband low intermodulation connector according to claim 2, characterized in that: The return spring (32) is installed inside the movable hole (31), and the snap-fit ​​bead (33) is movably connected to the inside of the movable hole (31).

4. A wideband low intermodulation connector according to claim 2, characterized in that: The side of the return spring (32) away from the movable hole (31) is fixedly connected to the surface of the snap bead (33), and the surface of the return spring (32) is coated with an anti-corrosion coating.

5. A wideband low intermodulation connector according to claim 1, characterized in that: The top of the limiting rod (24) is welded with a limiting ring (4), and the surface of the limiting ring (4) is coated with an anti-corrosion coating.

6. A wideband low intermodulation connector according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the top of the connector (22), and the sealing ring (5) is made of fluororubber material.

7. A wideband low intermodulation connector according to claim 1, characterized in that: The top surface of the connector body (1) is threaded with an adjusting nut (6), and the top of the adjusting nut (6) is threaded onto the surface of the connector head (22).

8. A wideband low intermodulation connector according to claim 1, characterized in that: The connector body (1) has several heat dissipation fins (7) welded to its surface, and the surface of the heat dissipation fins (7) is coated with thermally conductive silicone.

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