阅读说明：本技术 一种射频同轴连接器及其装配方法 (Radio frequency coaxial connector and assembling method thereof ) 是由 李斌 芦坤 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种射频同轴连接器,包括：母头接头、公头接头、圆形簧片；所述母头接头的外导体的内壁上,沿轴向开设有第一凹槽,沿周向开设有一圈供所述圆形簧片楔合的第二凹槽；所述公头接头的外导体的外壁上从端口起依次设有,沿轴向设置的与所述第一凹槽楔合的凸台,沿周向开设的一圈供所述圆形簧片卡入装配的第三凹槽。本发明采用在母头接头的外导体内壁上开设第一凹槽,在公头接头的外导体外壁上设置于第一凹槽楔合的凸台,在对插装配时,通过可以楔合的凸台和第一凹槽避免公头接头和母头接头之间发生相对转动,提高对插啮合过程的可靠性。(The invention discloses a radio frequency coaxial connector, comprising: the female joint, the male joint and the circular reed; a first groove is formed in the inner wall of the outer conductor of the female joint along the axial direction, and a circle of second grooves for wedging the circular reeds are formed in the circumferential direction; the outer wall of the outer conductor of the male connector is sequentially provided with a boss which is arranged along the axial direction and is in wedged fit with the first groove, and a circle of the boss is arranged along the circumferential direction to allow the circular spring leaf to be clamped into a third groove for assembly. According to the invention, the first groove is formed in the inner wall of the outer conductor of the female connector, the boss which is wedged with the first groove is arranged on the outer wall of the outer conductor of the male connector, and when the male connector and the female connector are assembled in an opposite insertion manner, the male connector and the female connector are prevented from rotating relatively through the wedged boss and the first groove, so that the reliability of the opposite insertion meshing process is improved.)

1. A radio frequency coaxial connector, comprising: the female joint, the male joint and the circular reed; a first groove is formed in the inner wall of the outer conductor of the female joint along the axial direction, and a circle of second grooves for wedging the circular reeds are formed in the circumferential direction; the outer wall of the outer conductor of the male connector is sequentially provided with a boss which is arranged along the axial direction and is in wedged fit with the first groove, and a circle of the boss is arranged along the circumferential direction to allow the circular spring leaf to be clamped into a third groove for assembly.

2. The rf coaxial connector of claim 1, wherein the female connector includes first grooves formed on an inner wall of the outer conductor of the female connector and symmetrically formed along an axial direction; and bosses wedged with the first grooves are symmetrically arranged on the outer wall of the outer conductor of the male connector along the axial direction.

3. The radio frequency coaxial connector of claim 1, wherein the circular spring is a circular spring that is convex along a radial arc.

4. The radio frequency coaxial connector of claim 1, wherein the first recess extends inwardly from the port of the outer conductor of the female connector to a bottom.

5. The radio frequency coaxial connector of claim 1, wherein the second recess opens at the outer conductor access port of the female connector.

6. The rf coaxial connector of claim 1, wherein the outer wall of the outer conductor of the female connector is provided with a first marking line along an axial direction; and a second marking line is arranged on the outer conductor of the male connector along the axial direction.

7. A method of assembling a radio frequency coaxial connector, adapted to the radio frequency coaxial connector of claims 1-6, wherein the method of assembling a radio frequency coaxial connector comprises: before assembly, the circular spring plate is clamped into the third groove; when the opposite insertion assembly is carried out, a first marking line on the female connector is aligned with a second marking line on the male connector, a boss on the male connector is aligned with a first groove on the female connector, the male connector is pushed until the circular reed is wedged with the second groove, the male connector and the female connector are screwed through a nut on the male connector, and the opposite insertion assembly is completed.

Technical Field

The invention relates to the technical field of coaxial connectors, in particular to a radio frequency coaxial connector.

Background

The new generation of 5G mobile communication systems uses new frequency bands and millimeter wave frequency bands, which requires the development of miniaturization of rf coaxial connectors applied to the new 5G systems.

As shown in fig. 1, the conventional miniaturized high-frequency connector is connected by using the engagement of the internal thread of the screw sleeve on the plug and the external thread on the socket shell, and the conventional connection mode has the advantage of reliable connection.

Although the conventional connector connected in a thread engagement manner as shown in fig. 1 is reliable in connection, a special torque wrench needs to be used for dismounting each time connection and separation are carried out, and the operation is complicated, time-consuming and labor-consuming. When such connectors are connected to each other as shown in fig. 2, the housing of the male may follow the threaded sleeve to rotate due to friction between the parts or misalignment of the parts when the threaded sleeve of the male is rotated. Although the following rotation angle is not very large, the diameter of the coaxial cable connected with the miniaturized connector is small, an inner core of the coaxial cable welded with the inner conductor of the connector is generally only formed by weaving extremely fine copper wires, and the total diameter of the inner core is smaller than 0.5 mm. When the male main body rotates along with the relative female main body of the threaded sleeve, friction exists between the male inner conductor of the inner core of the coaxial cable and the female inner conductor, the male inner conductor is prevented from rotating relatively, and then the male inner conductor and the inner core of the cable can be twisted, so that the inner core is extremely easy to break and damage, and the shielding layer braided by the fine copper wire of the outer layer of the cable can be also damaged by twisting. No matter the cable inner core or the outer weaving layer damages the back will directly cause the product electrical property to worsen, and the loss increases, and the shielding is revealed, will cause signal interruption when serious, and the product directly loses efficacy.

Disclosure of Invention

The invention provides a radio frequency coaxial connector, which aims to solve the problem that a thin cable is damaged because a male head shell is driven to rotate when a threaded sleeve of a male head is rotated in the prior art.

The invention provides a radio frequency coaxial connector, comprising: the female joint, the male joint and the circular reed; a first groove is formed in the inner wall of the outer conductor of the female joint along the axial direction, and a circle of second grooves for wedging the circular reeds are formed in the circumferential direction; the outer wall of the outer conductor of the male connector is sequentially provided with a boss which is arranged along the axial direction and is in wedged fit with the first groove, and a circle of the boss is arranged along the circumferential direction to allow the circular spring leaf to be clamped into a third groove for assembly.

Furthermore, first grooves are symmetrically formed in the inner wall of the outer conductor of the female joint along the axial direction; and bosses wedged with the first grooves are symmetrically arranged on the outer wall of the outer conductor of the male connector along the axial direction.

Further, the circular reed is a circular reed protruding along a radial arc.

Further, the first groove extends inwardly from the port of the outer conductor of the female connector to the bottom.

Further, the second groove is formed in the position, close to the port, of the outer conductor of the female connector.

Furthermore, a first marking line is axially arranged on the outer wall of the outer conductor of the female joint; and a second marking line is arranged on the outer conductor of the male connector along the axial direction.

The invention also provides an assembly method of the radio frequency coaxial connector, which comprises the following steps: before assembly, the circular spring plate is clamped into the third groove; when the opposite insertion assembly is carried out, a first marking line on the female connector is aligned with a second marking line on the male connector, a boss on the male connector is aligned with a first groove on the female connector, the male connector is pushed until the circular reed is wedged with the second groove, the male connector and the female connector are screwed through a nut on the male connector, and the opposite insertion assembly is completed.

The invention has the beneficial effects that:

according to the invention, the first groove is formed in the inner wall of the outer conductor of the female connector, the boss which is wedged with the first groove is arranged on the outer wall of the outer conductor of the male connector, and when the male connector and the female connector are assembled in an opposite insertion manner, the male connector and the female connector are prevented from rotating relatively through the wedged boss and the first groove, so that the reliability of the opposite insertion meshing process is improved. The first groove and the boss are symmetrically arranged, so that the fixing reliability can be improved. According to the invention, the circular reed is clamped on the outer wall of the outer conductor of the male connector, and the elastic force of the circular reed can ensure that the opposite insertion position can still be kept from being separated outwards under the condition that the male connector is not pushed and pressed by external force during opposite insertion. The sectional type composite connection mode can ensure that the product can be kept stable without relative rotation under various operating environments, can not cause the bad phenomena of cable damage and the like, and greatly prolongs the service life of the product.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a front view of a prior art RF connector in cross-section;

FIG. 2 is a front view of a prior art RF connector shown assembled in a cross-section;

FIG. 3 is a front view of a female connector according to an embodiment of the present invention

FIG. 4 is a perspective view of a female connector according to an embodiment of the present invention;

FIG. 5 is a front view of a male connector according to an embodiment of the present invention;

FIG. 6 is a perspective view of a male connector without a threaded sleeve according to an embodiment of the present invention;

FIG. 7 is a perspective view of a circular reed in accordance with an embodiment of the present invention;

FIG. 8 is a front cross-sectional view of the present invention during assembly;

fig. 9 is a front view in cross-section after mating assembly of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 3-9, an embodiment of the present invention provides a radio frequency coaxial connector, including: the connector comprises a female connector 1, a male connector 2 and a circular reed 3; the circular reed 3 is a circular reed 3 protruding along a radial circular arc, first grooves 11 are symmetrically formed in the inner wall of the outer conductor of the female joint 1 along the axial direction, the first grooves 11 extend inwards to the bottom from the port of the outer conductor of the female joint 1, a circle of second grooves 12 capable of being wedged with the circular reed 3 are formed in a radial rotating mode, the second grooves 12 are circular-arc-shaped, and the second grooves 12 are formed in the port, close to the port of the outer conductor of the female joint 1; bosses 21 which are arranged symmetrically along the axial direction and are wedged with the first groove 11 are sequentially arranged on the outer wall of the outer conductor of the male connector 2 from the port, and chamfers 211 are arranged at the front parts of the bosses 21 to facilitate sliding into the first groove 11; a circle of third grooves 22 which are formed in a rotating mode along the radial direction and are used for clamping and assembling the circular reeds 3, and first marking lines 13 are arranged on the outer wall of the outer conductor of the female joint 1 along the axial direction; a second marking line 23 is arranged on the outer conductor of the male connector 2 along the axial direction. Due to the wedging between the boss 21 and the first groove 11, the male connector 2 and the female connector 1 are prevented from rotating relatively, so that the damage to the cable caused by relative rotation in the prior art is avoided. Meanwhile, the circular reed 3 is wedged with the second groove 12, the circular reed 3 is clamped and supported in the second groove 12 through the self elastic force, the male connector 2 is kept not to be separated when the plug is plugged, a wrench or a hand is not needed to fix the male connector 2, and damage to the male connector 2 is avoided.

The invention also provides an assembly method of the radio frequency coaxial connector, which comprises the following steps: before assembly, the circular spring plate 3 is clamped into the third groove 22; when the plug-in connector is matched, a first marking line 13 on the female connector 1 is aligned with a second marking line 23 on the male connector 2, a boss 21 on the male connector 2 is aligned with a first groove 11 on the female connector 1, the male connector 2 is pushed until a circular reed 3 is wedged with a second groove 12, at the moment, the plug-in connector 1 and an inner conductor of the male connector 2 are completed, and finally the male connector 2 and the female connector 1 are screwed through a nut on the male connector 2 to complete the plug-in assembly.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.