CN209389367U - A multi-way radio frequency connector - Google Patents

Abstract

The utility model discloses a kind of multi-channel rf connectors, including connector mounting plate, eight single-channel RF connectors are installed side by side on connector mounting plate, single-channel RF connector includes the RF coaxial socket being embedded in inside connector mounting plate, clamping groove is provided at left and right sides of the inner surface of RF coaxial socket, the center of RF coaxial socket is equipped with coaxial jack, is plugged with RF coaxial plug on corresponding RF coaxial socket；RF coaxial plug includes insulating protective sleeve; the inside of insulating protective sleeve is equipped with inner conductor and outer conductor; pad has insulating carriage between inner conductor and outer conductor; the center of inner conductor is socketed with the radio-frequency cable for carrying out conducted signal; the front end of radio-frequency cable is socketed with coaxial pole sleeve, and the tail end two sides of coaxial pole sleeve are provided with the clamping lug to match with clamping groove.The utility model realizes impedance matching well reduces transmission loss, and each connector independence is good, easy to use convenient for quick-speed plug.

Description

A multi-way radio frequency connector

technical field

The utility model relates to the field of connectors, in particular to a multi-channel radio frequency connector.

Background technique

The actual electrical performance of the RF connector depends on the performance of the cable, the contact of the cable, the geometry of the connector, the contact of the inner conductor, and so on. Among all kinds of electronic equipment, systems such as control, communication, and detection often require simultaneous transmission of several microwave signals. Therefore, multiple microwave transmission components need to be used for interconnection within the device or between two or more electronic devices. In this case, the equipment requires many interconnection components. If only a single connection component is used to realize the interconnection of different subsystems, the microwave components used are divided into different clusters, so multiple radio frequency connectors are required for connection. However, the existing multi-channel radio frequency connectors have the following problems:

For example, the application number is 106654715A, and the patent name is a utility model patent for an integrated multi-circuit board tolerance radio frequency connector:

Including the clamping end socket part and the sliding end socket part with floating device, the clamping end socket part is welded or crimped on the PCB board, the sliding end socket part is welded or crimped on another PCB board, the above two PCB boards Within a certain distance range, there is a reliable connection to achieve axial and radial tolerances. The floating device can realize the self-righting of multiple transfer rod parts, ensuring that each multiple transfer rod parts can be correctly blindly inserted into the sliding end socket. part in the wiper socket housing.

However, the existing electrical connectors have the following defects:

The impedance matching between the radio frequency connector plug-ins is not completely realized, resulting in a large transmission loss. For high-frequency signal transmission, it is easy to cause signal distortion and reduce transmission efficiency.

Contents of the invention

In order to overcome the shortcomings of the existing technical solutions, the utility model provides a multi-channel radio frequency connector, which can effectively solve the problems raised by the background technology.

The technical scheme that the utility model solves its technical problem adopts is:

A multi-channel radio frequency connector, including a connector mounting plate, eight single-channel radio frequency connectors are installed side by side on the connector mounting plate, the single-channel radio frequency connector includes a radio frequency coaxial socket embedded in the connector mounting plate, and the radio frequency The left and right sides of the inner surface of the coaxial socket are provided with locking grooves, the center of the radio frequency coaxial socket is equipped with a coaxial jack, and the corresponding radio frequency coaxial socket is inserted with a radio frequency coaxial plug;

The RF coaxial plug includes an insulating protective sheath, an inner conductor and an outer conductor are installed inside the insulating sheath, an insulating support frame is lined between the inner conductor and the outer conductor, and the center of the inner conductor is sleeved with a radio frequency cable for conducting signals , the front end of the radio frequency cable is sleeved with a coaxial pin sleeve, and both sides of the tail end of the coaxial pin sleeve are provided with clamping lugs matching the clamping groove.

Furthermore, the single-way radio frequency connectors are arranged at equal intervals in a 4*2 manner, the working frequency range is from 50MHz to 20GHz, the intermediate frequency is 10GHz, and the interval between each single-way radio frequency connector is 15mm.

Further, the end of the insulating protective sheath is rotatably sleeved with a locking nut, and the inner bayonet of the locking nut is respectively fixedly connected with the inner conductor and the outer conductor.

Further, the characteristic impedance of the coaxial pin sleeve and the coaxial socket is both 50Ω, the diameter of the coaxial pin sleeve is 1.65cm, and the tail of the coaxial pin sleeve is increased with an outer diameter of 2.34mm, Compensation section with a length of 0.5mm.

Further, the inner wall of the coaxial socket is embedded with spring conductive sheets, there are three spring conductive sheets arranged in a triangle, and the bottoms of the spring conductive sheets are connected by conductive wires.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model forms multi-channel independent radio frequency connectors by inlaying single-channel radio frequency connectors on the connector mounting plate, and can automatically control the on-off, combining the locking groove on the coaxial jack with the coaxial The clamping lugs on the pin sleeve cooperate to realize fast and convenient insertion and conversion;

(2) The utility model can realize the impedance matching with the single-way radio frequency connector by adding the compensation section, reduce the transmission loss, combine the spring conductive sheet with the coaxial pin sleeve to reduce the contact impedance, and improve the transmission efficiency of the whole device.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

FIG. 2 is a schematic cross-sectional view of a single-way radio frequency connector.

Labels in the figure:

1-connector mounting plate; 2-single-way RF connector; 3-RF coaxial plug;

101-rotating insulating sleeve; 102-rotating single-mode fiber; 103-self-focusing collimating lens;

201-RF coaxial socket; 202-Clip groove; 203-Coaxial jack;

301-Insulation protective sleeve; 302-Inner conductor; 303-Outer conductor; 304-Insulation support frame; 305-RF cable; 306-Spring conductive sheet; 307-Coaxial pin sleeve; - locking nut; 310 - compensation section.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the utility model provides a multi-channel radio frequency connector, including a connector mounting plate 1, eight single-channel radio frequency connectors 2 are installed side by side on the connector mounting plate 1, and the single-channel radio frequency connector 2 Arranged at equal intervals in the form of 4*2, the working frequency range is from 50MHz to 20GHz, the intermediate frequency is 10GHz, and the interval between each single-channel RF connector 2 is 15mm; the eight single-channel RF connectors installed on the connector mounting plate 1 Connectors 2 can be fast or disconnected at the same time, and the transmission rate can reach up to 20GHz; the gathering interval is 15mm, which can effectively reduce the coupling effect between adjacent connectors, so each single-way RF connector 2 has good independent performance.

As shown in Figure 2, the single-way radio frequency connector 2 includes a radio frequency coaxial socket 201 embedded in the connector mounting plate 1. The left and right sides of the inner surface of the radio frequency coaxial socket 201 are provided with engaging grooves 202, and the radio frequency coaxial A coaxial jack 203 is installed in the center of the socket 201, and a radio frequency coaxial plug 3 is plugged into the corresponding radio frequency coaxial socket 201; The single-way radio frequency connector 2 is also made of insulating material.

In this embodiment, the radio frequency coaxial plug 3 includes an insulating protective sheath 301, an inner conductor 302 and an outer conductor 303 are installed inside the insulating sheath 301, and the center of the inner conductor 302 is sleeved with a radio frequency cable 305 for conducting signals, The inner conductor 302 and the outer conductor 303 carry out data transmission through the radio frequency cable 305, and an insulating support frame 304 is lined between the inner conductor 302 and the outer conductor 303, and the end of the insulating protective sheath 301 is rotatably sleeved with a locking nut 309, which is tightly locked. The inner bayonet socket of the nut 309 forms a fixed connection with the inner conductor 302 and the outer conductor 303 respectively; the inner conductor 302 and the outer conductor 303 are separated by an insulating support frame 304, and the insulating support frame 304 is a hollow structure, and forms an air insulation section, for Ensure that the characteristic impedance of the support section and the air section in the connector are consistent, and the characteristic impedance of each section of the coaxial connector should be as consistent as possible with the characteristic impedance of the connected cable.

In particular, the front end of the radio frequency cable 305 is sleeved with a coaxial pin sleeve 307, the characteristic impedance of the coaxial pin sleeve 307 and the coaxial jack 203 are both 50Ω, and the diameter of the coaxial pin sleeve 307 1.65cm, the tail of the coaxial pin sleeve 307 is added with a compensation section 310 with an outer diameter of 2.34mm and a length of 0.5mm. By adding the compensation section 310, the impedance matching with the coaxial jack 203 can be effectively realized, thereby Further reduce transmission loss.

It is supplemented that the two sides of the tail end of the coaxial pin sleeve 307 are provided with locking lugs 308 that match the locking groove 202, and the inner wall of the coaxial socket 203 is embedded with a spring conductive sheet 306, and the spring There are three conductive sheets 306 arranged in a triangle, and the bottoms of the spring conductive sheets 306 are connected by conductive wires; Slots 202 match, and the coaxial pin sleeve 307 is inserted into the coaxial socket 203. At this time, the spring conductive sheet 306 is stretched and closely fits the coaxial pin sleeve 307 and the coaxial socket 203, so as to Reduce contact loss.

The utility model is characterized in that, by inlaying a single-way radio-frequency connector 2 on the connector mounting plate 1, multiple independent radio-frequency connectors are formed, and the on-off can be automatically controlled. The groove 202 cooperates with the clamping lug 308 on the coaxial pin sleeve 307, which can realize fast and convenient insertion and conversion; and by adding the compensation section 310, the impedance matching with the single-way radio frequency connector 2 can be realized, reducing the The transmission loss is combined with the spring conductive sheet 306 snapped into the coaxial pin sleeve 307 to reduce the contact resistance and improve the transmission efficiency of the whole device.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. a kind of multi-channel rf connector, including connector mounting plate (1), it is characterised in that: on the connector mounting plate (1) Eight single-channel RF connectors (2) are installed side by side, the single-channel RF connector (2) includes being embedded in connector mounting plate (1) internal RF coaxial socket (201), it is recessed that the inner surface left and right sides of the RF coaxial socket (201) is provided with clamping Slot (202), the center of RF coaxial socket (201) are equipped with coaxial jack (203), on corresponding RF coaxial socket (201) It is plugged with RF coaxial plug (3)；

The RF coaxial plug (3) includes insulating protective sleeve (301), and the inside of the insulating protective sleeve (301) is equipped with interior Conductor (302) and outer conductor (303), pad has insulating carriage (304) between the inner conductor (302) and outer conductor (303), The center of the inner conductor (302) is socketed with the radio-frequency cable (305) for carrying out conducted signal, the radio-frequency cable (305) Front end be socketed with coaxial pole sleeve (307), the tail end two sides of the coaxial pole sleeve (307) are provided with and clamping groove (202) the clamping lug (308) to match.

2. a kind of multi-channel rf connector according to claim 1, it is characterised in that: the single-channel RF connector (2) The arranged at equal intervals in the way of 4*2, working frequency range are connected from 50MHz~20GHz, IF frequency 10GHz, each single-channel RF 15mm is divided between device (2).

3. a kind of multi-channel rf connector according to claim 1, it is characterised in that: the insulating protective sleeve (301) End rotation is socketed with tight split nut (309), the internal bayonet of the tight split nut (309) respectively with inner conductor (302) and outside Conductor (303) forms a fixed connection.

4. a kind of multi-channel rf connector according to claim 1, it is characterised in that: the coaxial pole sleeve (307) Characteristic impedance with coaxial jack (203) is 50 Ω, and the diameter of coaxial pole sleeve (307) is 1.65cm, coaxial pole set The tail portion of cylinder (307), which increases, the compensator section (310) that outer diameter is 2.34mm, length is 0.5mm.

5. a kind of multi-channel rf connector according to claim 1, it is characterised in that: the coaxial jack (203) it is interior It is inlaid in wall spring conductive sheet (306), the spring conductive sheet (306) shares three pieces, is arranged in triangle, and spring is conductive The bottom of piece (306) is connected by conductor wire.