Radio frequency coaxial millimeter wave cable connector

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a radio frequency coaxial millimeter wave cable connector which comprises a threaded sleeve, an elastic clamping jaw, an elastic contact head, an insulating medium, a main shell, a clamping ring, a center pin, a welding cup and a tail pipe. The elastic clamping jaw is arranged inside the threaded sleeve, the threaded sleeve abuts against jaw teeth of the elastic clamping jaw to tighten the elastic clamping jaw, the clamping ring is sleeved on the main shell, the main shell is sleeved in the elastic clamping jaw through the clamping ring, the elastic contact head is arranged at the front end of the main shell and is sleeved in the elastic clamping jaw, and when a standard female head connector is inserted, the elastic contact head is clamped in the elastic clamping jaw. The bulge of the elastic contact is tightly attached to the inner wall of the female connector. The connector is innovated and optimized in design, can simultaneously meet the characteristics of reliable connection and quick plugging and unplugging, greatly reduces the plugging and unplugging time of the male and female heads of the millimeter wave cable connector in the aspect of operation efficiency, saves the labor time cost, and has high practical value in laboratory testing and engineering large-scale debugging scenes. And the working efficiency is greatly improved, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, in particular to a radio frequency coaxial millimeter wave cable connector. Background Art

[0002] The millimeter wave cable connectors on the market are mainly divided into threaded connections (such as the 2.92mm series) and elastic plug-in contact connections (such as the SMP series). The threaded connection focuses on the stability of product use, while the elastic plug-in connection focuses on the quick and convenient use of the product. Users can choose a relatively suitable solution from the above two solutions based on the specific needs of their own products, while further considering the specifications and adaptability of the RF coaxial cable.

[0003] Defects and shortcomings of the existing technology:

[0004] 1. The above two existing solutions cannot take into account the advantages of stable connection and fast plugging and unplugging at the same time. For example, the cumulative time for inserting and unplugging the male and female ends of a single-side millimeter-wave connector with threaded connection is about 10 seconds. Generally, the RF cable assembly requires the connectors to be disassembled and assembled on both sides, which takes about 20 seconds in total. For environments that require repeated disassembly and assembly (such as production debugging, experimental testing, etc.), especially when large-scale cable assembly connectors need to be repeatedly disassembled and assembled, the labor cost is relatively high.

[0005] 2. Although the connector with elastic plug-in connection has the advantage of fast plug-in and pull-out (the cumulative time for single-sided male and female insertion and removal is about 5S), its disadvantages are also very obvious. After plugging in, the cable connector itself cannot be subjected to axial pull-out force and radial thrust. The external force exerted by the environment may cause instability in plugging in. The use environment of this type of cable connector needs to be relatively stable, or a safety fixing structure must be added outside the connector. At the same time, this type of millimeter wave connector cannot carry some thicker armored cables due to its standard size, which further limits its use environment.

[0006] In summary, there is currently no millimeter wave cable connector on the market that can simultaneously meet the requirements of reliable connection and fast plug-in and unplugging, which can not only reduce the labor time cost required for inserting and unplugging the connector, but also meet the stability of the connection, while also taking into account the use space of the connector connector (that is, the overall size of the connector) and the maximum frequency of use (reaching the millimeter wave level and above). Summary of the invention

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the present invention provides a radio frequency coaxial millimeter wave cable connector, which solves the problems raised in the above background technology.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0011] A radio frequency coaxial millimeter wave cable connector, comprising a screw sleeve, an elastic claw, an elastic contact head, an insulating medium, a main shell, a clamping ring, a center pin, a welding cup and a tail pipe;

[0012] The elastic claw is arranged inside the screw sleeve, and the screw sleeve abuts against the claw teeth of the elastic claw to tighten the elastic claw;

[0013] The elastic claw mouth is provided with an internal thread, and the thread specification can be 1 / 4-36UNS, M7x0.75 or M4x0.7, which is used to engage and clamp with the external thread of the female connector;

[0014] The snap ring is sleeved on the main housing, the main housing is sleeved in the elastic claw through the snap ring, the elastic contact head is arranged at the front end of the main housing and sleeved in the elastic claw, and when the standard female connector is inserted, the bulge of the elastic contact head is tightly against the inner wall of the female connector;

[0015] The welding cup and the tail pipe are connected to the tail of the main shell in sequence, the center pin is arranged inside the connector, and the insulating medium is sleeved on the center pin for insulation and support.

[0016] Furthermore, the inner ring of the screw sleeve is provided with a shoulder boss, which is used to resist and tighten the elastic claw, so that the elastic claw can engage with the external thread of the female connector to achieve a locking effect.

[0017] Furthermore, the elastic claw has a boss, which fits and tightens with the shoulder boss of the screw sleeve without separation, and has a limiting effect.

[0018] Furthermore, six circumferentially distributed slots are formed on the elastic claw, and the elastic metal beryllium copper is selected for the elastic claw to make it elastic; the elastic claw is provided with a snap ring groove for embedding a snap ring to achieve connection with the main shell.

[0019] Furthermore, the outer bottom of the elastic claw is a milled edge structure.

[0020] Furthermore, the bulge at the mouth of the elastic contact head is tightly attached to the inner wall of the female connector when inserted into a standard female connector, and the elastic contact head is grooved and made of elastic metal beryllium copper to make it elastic.

[0021] Furthermore, the main shell is provided with a snap ring groove, and the connection with the elastic claw is achieved by embedding the snap ring, and the tail of the main shell is milled on the opposite sides.

[0022] Furthermore, the RF coaxial millimeter wave cable connector is a male connector. When the male connector is inserted into the female connector, the threaded sleeve of the male connector is pushed by hand to drive the elastic contact head and the main shell to be inserted into the bottom of the female connector. After it is inserted to the bottom, the threaded sleeve is continued to be pushed tightly to tighten the elastic claw so that the elastic claw is embedded in the external thread of the female connector to realize the insertion thread locking. Then, the elastic claw is rotated clockwise to mill the 6-sided structure on the outer bottom to realize the complete locking of the male connector and the female connector. The elastic claw is rotated counterclockwise to mill the 6-sided structure on the outer bottom to realize the unlocking and separation of the male connector and the female connector.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a radio frequency coaxial millimeter wave cable connector, which has the following beneficial effects:

[0025] The connector has been innovatively optimized in design, and can simultaneously meet the characteristics of reliable connection and fast plugging and unplugging. In terms of operational efficiency, it greatly reduces the plugging and unplugging time of the male and female heads of the millimeter wave cable connector, saving labor time costs. In laboratory testing and large-scale engineering debugging scenarios, it greatly improves work efficiency and reduces costs;

[0026] In terms of compatibility and adaptability, it is compatible with standard 2.92mm series female connectors and has no additional requirements for the adapted RF cables, so it has a wide range of applications.

[0027] In terms of performance, its connection reliability is no less than that of a 2.92mm cable connector with a standard threaded connection. In terms of electrical performance, it can effectively guarantee signal transmission. At the same time, it can also achieve equivalent substitution in terms of environmental reliability. It can adapt to a variety of complex environments and provide a better connection solution for the millimeter wave communication field. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0029] Figure 2 It is a schematic diagram of a half-section structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the assembly structure of the present invention;

[0031] Figure 4 This is a schematic diagram of a half-section structure of a screw sleeve of the present invention;

[0032] Figure 5 This is a schematic diagram of a half-section structure of the elastic claw of the present invention;

[0033] Figure 6 This is a schematic diagram of a half-section structure of the elastic contact head of the present invention;

[0034] Figure 7 It is a schematic diagram of the half-section structure of the main shell of the present invention.

[0035] In the figure: 1. screw sleeve; 2. elastic claw; 3. elastic contact head; 4. insulating medium; 5. main shell; 6. clamping ring; 7. center pin; 8. welding cup; 9. tail pipe. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example

[0038] like Figure 1-7 As shown, a radio frequency coaxial millimeter wave cable connector proposed in one embodiment of the present invention is characterized in that it includes a screw sleeve 1, an elastic claw 2, an elastic contact head 3, an insulating medium 4, a main shell 5, a clamping ring 6, a center pin 7, a welding cup 8 and a tail tube 9;

[0039] Screw sleeve 1 and elastic claw 2: The inner ring of screw sleeve 1 is provided with a shoulder boss, which contacts the claw teeth of elastic claw 2 to tighten elastic claw 2. Elastic claw 2 has a boss that fits with the shoulder boss of screw sleeve 1, and the two are tightly matched. This connection mode enables the opening and closing of elastic claw 2 to be controlled when operating screw sleeve 1, so as to achieve engagement and separation with the external thread of female connector, thereby achieving the purpose of locking and unlocking.

[0040] Elastic claw 2 and main housing 5: The elastic claw 2 is provided with a snap ring groove, in which the snap ring 6 is embedded, and the main housing 5 is sleeved in the elastic claw 2 through the snap ring 6 to firmly connect the two. This connection ensures the coordinated movement of the main housing 5 and the elastic claw 2, and ensures the stability of the overall structure of the connector.

[0041] Elastic contact head 3 and main housing 5, elastic claw 2: The elastic contact head 3 is arranged at the front end of the main housing 5 and is sleeved in the elastic claw 2. When inserted into a standard female connector, the bulge at the mouth of the elastic contact head 3 is close to the inner wall of the female connector, which plays a role in assisting contact, enhancing connection stability and ensuring electrical performance. At the same time, the connection between the elastic contact head 3 and the main housing 5 and the elastic claw 2 allows it to maintain the correct position during insertion and removal, achieving reliable connection.

[0042] Main housing 5, welding cup 8 and tail tube 9: welding cup 8 and tail tube 9 are sequentially connected to the tail of main housing 5. Welding cup 8 is used to connect cable core wires to achieve electrical connection; tail tube 9 protects and supports the cable and enhances the overall mechanical strength and stability of the connector.

[0043] Center pin 7 and insulating medium 4: The center pin 7 is arranged inside the connector, and the insulating medium 4 is sleeved on the center pin 7. The insulating medium 4 plays the role of insulating and supporting the center pin 7, avoiding electrical short circuit between the center pin 7 and other components, and ensuring stable and reliable electrical performance of the connector;

[0044] When the RF coaxial millimeter wave cable connector is working, the male connector is docked with the standard 2.92mm female connector. The user holds and pushes the screw sleeve 1 of the male connector, and the screw sleeve 1 drives the elastic contact head 3 and the main shell 5 to insert into the bottom of the female connector. At this time, because the inner shoulder boss of the screw sleeve 1 contacts the elastic claw 2, continuing to push the screw sleeve 1 tightly will tighten the elastic claw 2. The internal thread of the elastic claw 2 is engaged and clamped with the external thread of the female connector to achieve self-locking insertion. During the insertion process, the bulge at the mouth of the elastic contact head 3 is close to the inner wall of the female connector to ensure good contact; the insulating medium 4 is sleeved on the center pin 7 to play an insulating and supporting role. The solder cup 8 and the tail pipe 9 are connected to the tail of the main shell 5 in sequence to ensure the stability of the overall structure of the connector. When separation is required, the screw sleeve 1 can be unlocked and separated by reversing the operation.

[0045] like Figure 4 As shown, in some embodiments, the inner ring of the screw sleeve 1 is provided with a shoulder boss, and the shoulder boss is used to resist and tighten the elastic claw 2 so that the elastic claw 2 can engage with the external thread of the female connector to achieve a locking effect.

[0046] like Figure 5 As shown, in some embodiments, the elastic claw 2 has a boss, which fits and tightens with the shoulder boss of the screw sleeve 1; the mouth of the elastic claw (2) is provided with an internal thread, and the thread specification can be 1 / 4-36UNS, M7x0.75 or M4x0.7, which is used to engage and clamp with the external thread of the female connector; specifically: when the screw sleeve is pushed to tighten the claw, the thread engages with the external thread of the standard 2.92 female connector to achieve a locking effect, and when the screw sleeve is retracted to loosen the claw, the thread automatically separates from the external thread of the 2.92 female connector due to the elastic characteristics of the claw itself, thereby achieving a quick separation effect.

[0047] like Figure 5 As shown, in some embodiments, six circumferentially distributed grooves are provided on the elastic claw 2, and the elastic claw 2 is made of elastic metal beryllium copper to make it elastic; the elastic claw 2 is provided with a snap ring groove for embedding a snap ring 6 to achieve connection with the main shell 5.

[0048] like Figure 5 As shown, in some embodiments, the outer bottom of the elastic claw 2 is a milled 6-edge structure.

[0049] like Figure 6As shown, in some embodiments, the bulge at the mouth of the elastic contact head 3 is tightly attached to the inner wall of the female connector when inserted into a standard female connector, and the elastic contact head 3 is provided with 6 grooves, and the material is elastic metal beryllium copper to make it elastic.

[0050] like Figure 7 As shown, in some embodiments, the main housing 5 is provided with a snap ring groove, and the connection with the elastic claw 2 is achieved by embedding the snap ring 6, and the tail of the main housing 5 is milled on the opposite sides.

[0051] The RF coaxial millimeter wave cable connector is a male connector. When the male connector is inserted into the female connector, the threaded sleeve 1 of the male connector is pushed by hand to drive the elastic contact head 3 and the main shell 5 to be inserted into the bottom of the female connector. After being inserted to the bottom, the threaded sleeve 1 is continued to be pushed tightly to tighten the elastic claw 2 so that the elastic claw 2 is embedded in the external thread of the female connector to realize the insertion thread locking. Then, the elastic claw 2 is rotated clockwise to mill the 6-edge structure on the outer bottom to realize the complete locking of the male connector and the female connector. The elastic claw 2 is rotated counterclockwise to mill the 6-edge structure on the outer bottom to realize the unlocking and separation of the male connector and the female connector.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radio frequency coaxial millimeter wave cable connector, characterized in that: It comprises a screw sleeve (1), an elastic claw (2), an elastic contact head (3), an insulating medium (4), a main shell (5), a clamping ring (6), a center needle (7), a welding cup (8) and a tail pipe (9); The elastic claw (2) is arranged inside the screw sleeve (1), and the screw sleeve (1) contacts the claw teeth of the elastic claw (2) so as to tighten the elastic claw (2); The elastic claw (2) is provided with an internal thread at its mouth, the thread specification of which is 1 / 4-36UNS, M7x0.75 or M4x0.7, for engaging and clamping with the external thread of the female connector; The clamping ring (6) is sleeved on the main housing (5), and the main housing (5) is sleeved in the elastic claw (2) through the clamping ring (6). The elastic contact head (3) is arranged at the front end of the main housing (5) and is sleeved in the elastic claw (2), and when the standard female connector is inserted, the bulge of the elastic contact head (3) is tightly attached to the inner wall of the female connector; The welding cup (8) and the tail pipe (9) are sequentially connected to the tail of the main housing (5); the center pin (7) is arranged inside the connector; and the insulating medium (4) is sleeved on the center pin (7) for insulation and support.

2. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The inner ring of the screw sleeve (1) is provided with a shoulder boss, which is used to abut against and tighten the elastic claw (2), so that the elastic claw (2) can be engaged with the external thread of the female connector to achieve a locking effect.

3. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The elastic claw (2) has a boss, which fits tightly with the shoulder boss of the screw sleeve (1) and does not separate, thus having a limiting effect.

4. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The elastic claw (2) is provided with six circumferentially distributed slots. The elastic claw (2) is made of elastic metal beryllium copper to make it elastic. The elastic claw (2) is provided with a snap ring groove for embedding a snap ring (6) to achieve connection with the main housing (5).

5. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The outer bottom of the elastic claw (2) is a milled six-sided structure.

6. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The bulge at the mouth of the elastic contact head (3) is tightly attached to the inner wall of the female connector when inserted into a standard female connector, and the elastic contact head (3) is provided with 6 grooves, and the material is elastic metal beryllium copper, so that it has elasticity.

7. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The main housing (5) is provided with a snap ring groove, which is connected with the elastic claw (2) by embedding the snap ring (6), and the tail of the main housing (5) is milled on opposite sides.

8. The radio frequency coaxial millimeter wave cable connector according to claim 1, characterized in that: The radio frequency coaxial millimeter wave cable connector is a male connector. When the male connector is inserted into the female connector, the thread sleeve (1) of the male connector is pushed by hand to drive the elastic contact head (3) and the main shell (5) to be inserted into the bottom of the female connector. After being inserted to the bottom, the thread sleeve (1) is pushed tightly to tighten the elastic clamping claw (2) so that the elastic clamping claw (2) is embedded in the external thread of the female connector to achieve insertion thread locking. Then, the elastic clamping claw (2) is rotated clockwise to mill the six-edge structure on the outer bottom to achieve complete locking of the male connector and the female connector. The elastic clamping claw (2) is rotated counterclockwise to mill the six-edge structure on the outer bottom to achieve unlocking and separation of the male connector and the female connector.

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