CN109980436B

CN109980436B - Coaxial cable joint

Info

Publication number: CN109980436B
Application number: CN201910201566.3A
Authority: CN
Inventors: 宋金泽; 郭磊; 郑博文
Original assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Design and Research Institute Commercial Aircraft Corporation of China Ltd
Current assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Design and Research Institute Commercial Aircraft Corporation of China Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2021-05-28
Anticipated expiration: 2039-03-18
Also published as: CN109980436A

Abstract

The present invention relates to a coaxial cable connector. The coaxial cable connector includes a center pin, a conductive strip, and a shield clip. Wherein, the conducting strip is fixed on the base in the coaxial cable joint through the conducting strip guiding mechanism. The operator can adjust the distance between the conducting strip and the central needle through the conducting strip guide mechanism, so that the coaxial cable connector can be suitable for various coaxial cable connectors.

Description

Coaxial cable joint

Technical Field

The invention relates to a connecting device in the field of communication, in particular to a coaxial cable connector.

Background

Coaxial cables are used for transmitting radio frequency signals, and generally, coaxial cables of different sections are connected in series through coaxial cable connectors. The coaxial cable connectors are various in types, and different types cannot be matched with each other. Fig. 1-3 are cross-sectional views showing three different types of coaxial cable connectors, wherein the distances between the conductor center pin and the inner ring ferrule of the different types of coaxial cable connectors are different. Specifically, the coaxial cable connector of fig. 1 includes a protruding conductor center pin 1, a cavity 2, an inner ring ferrule 3, and an outer ring shield 4. The coaxial cable connector of fig. 2 comprises a conductor center pin 7, a spacer material 6, an inner ring metal ring 5. Wherein the inner ring metal ring 5 of fig. 2 doubles as the outer ring shield. The coaxial cable connector of fig. 3 includes a conductor center pin 8, a spacer 9, and an inner ring metal ring 10, and the inner ring metal ring 10 of fig. 3 also doubles as an outer shield layer. When the coaxial cable connector is used, a male head of a coaxial cable is inserted into a female head of the coaxial cable connector matched with the male head, at the moment, the

central pins

1, 7 and 8 of the male head conductor shown in the figures 1 to 3 are inserted into the central pin (not shown, which is in a hollow cylinder structure) of the female head conductor matched with the male head conductor, and the inner metal ring of the male head is abutted against the outer metal ring of the female head conductor, so that the series connection operation is completed.

An operator in a laboratory setting is required to perform test tests on test equipment having different coaxial cable connections. If a matching connector is purchased for each type of test equipment, the cost may be increased. In addition, after the test equipment is replaced, the operator needs to replace the matching connector, which also causes the workload to be increased and delays the test progress.

Accordingly, there is a need for a coaxial cable connector that can be mated with different configurations of coaxial cable connectors.

Disclosure of Invention

The invention provides a coaxial cable connector, which aims at the problems in the prior art and comprises a central needle, a conducting strip and a shielding clamp which are sequentially arranged from inside to outside along the radial direction of the coaxial cable connector, wherein the central needle is fixed on a base of the coaxial cable connector, the conducting strip is provided with at least two pieces and is arranged at intervals along the circumferential direction of the coaxial cable, the conducting strip is used for being electrically connected with an outer conducting ring of the coaxial cable,

the coaxial cable connector further comprises a conducting strip guiding mechanism fixedly arranged on the base, the conducting strip is fixed on the conducting strip guiding mechanism, and the distance between the conducting strip and the center pin is adjusted by means of the conducting strip guiding mechanism.

According to a preferred embodiment of the present invention, the conductive plate guiding mechanism includes a rack extending from a center of the coaxial cable connector toward a radial outer edge thereof, and a limiting assembly slidably sleeved on the rack, the limiting assembly includes a frame, an elastic member, and a limiting plate, and the conductive plate is fixed on the frame; the limiting plate can be fixed in the sleeve frame in a hinged mode and is connected with the elastic piece; wherein the elastic member is configured to be compressed when the conductive sheet guide mechanism is in a natural state, thereby causing one end of the restriction plate to abut against a tooth surface of the rack so that the conductive sheet cannot move in a direction away from the center pin.

According to another preferred embodiment of the invention, the rack is provided with a scale.

According to another preferred embodiment of the present invention, the conductive sheet guiding mechanism includes a driving wheel, a conveyor belt, and a driven wheel, the driving wheel being located at a substantially central position of the coaxial cable and driving the driven wheel, the conveyor belt being fixed with the conductive sheet and driven by the driven wheel, thereby enabling the conductive sheet to move in a direction away from the center needle or in a direction toward the center needle.

According to another preferred embodiment of the present invention, the conductive sheet guiding mechanism further includes a limiting block, and when the conductive sheet moves to a desired position, the limiting block abuts against the driving wheel and/or the driven wheel to limit the conductive sheet.

According to another preferred embodiment of the present invention, the central needle is removably fixed to the base.

According to another preferred embodiment of the present invention, the driving wheel is the base.

According to another preferred embodiment of the present invention, the rack is an electrically conductive member.

According to another preferred embodiment of the present invention, the side of the conductive sheet facing the central needle is provided with a protrusion.

According to another preferred embodiment of the invention the direction of movement of the drive belt is parallel to or coincides with the radial direction of the coaxial cable connection.

According to another preferred embodiment of the invention, the rack extends in a radial direction of the coaxial cable connector.

According to another preferred embodiment of the present invention, the conductive sheet is an arc-shaped sheet, and the center of the conductive sheet is concentric with the center of the central needle.

According to another preferred embodiment of the invention, the conductive sheet is a metallic conductive sheet.

A coaxial cable connector according to the present invention includes a center pin, a conductive strip and a shield clip. Wherein, the conducting strip is fixed on the base in the coaxial cable joint through the conducting strip guiding mechanism. The operator can adjust the distance between the conducting strip and the central needle through the conducting strip guide mechanism, so that the coaxial cable connector can be suitable for various coaxial cable connectors.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not drawn to scale.

FIGS. 1-3 are cross-sectional views of different forms of prior art coaxial cable connectors;

fig. 4 is a perspective view of a coaxial cable connector according to a preferred embodiment of the present invention;

FIG. 5 is a front view of FIG. 4;

fig. 6 is a sectional view taken along the direction a-a of fig. 5, showing one form of the conductive sheet guide mechanism, fig. 6 not showing the conductive sheet;

fig. 7 is a sectional view taken along the direction a-a of fig. 5, showing another form of the conductive sheet guide mechanism, fig. 7 not showing the conductive sheet;

fig. 8 is a schematic structural view of a conductive sheet guide structure according to another preferred embodiment of the present invention.

Detailed Description

The coaxial cable connector of the present invention will be described in detail with reference to the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the invention will occur to those skilled in the art and are within the scope of the invention.

In the following detailed description, directional terms, such as "left", "right", "upper", "lower", "front", "rear", "horizontal", "vertical", and the like, are used with reference to the orientation as illustrated in the drawings. Components of embodiments of the present invention can be positioned in a number of different orientations and the directional terminology is used for purposes of illustration and is in no way limiting. If not specifically stated, the center pin in the invention can refer to any center pin of a male head or a female head, and the male head and the female head of the coaxial cable connector are provided with conducting strips and conducting strip guiding mechanisms based on the same principle. For the sake of convenience of distinction, the coaxial cable connector mated with the coaxial cable connector of the present invention will be hereinafter referred to as "to-be-connected connector".

Fig. 4 is a perspective view of a coaxial cable connector 100 according to the present invention; fig. 5-7 illustrate a partial structure of the coaxial cable connector 100 having the conductive sheet 102 guide of the first embodiment; fig. 8 shows a partial structure of the coaxial cable connector 100 having the conductive sheet 102 guide of the second embodiment. The coaxial cable connector 100 shown in fig. 4-8 includes a center pin 101, a conductive strip 102, a shield clip 103, and conductive

strip guide mechanisms

106, 206 arranged in order from inside to outside in a radial direction of the coaxial cable connector 100. Wherein the center pin 101 is fixed to the base 104 of the coaxial cable connector 100. 4 conductive pieces 102 such as metal pieces are arranged at equal intervals in the circumferential direction of the coaxial cable for electrical connection with the outer conductive ring of the to-be-connected terminal. It is understood that the number of the conductive sheets 102 may be any number, such as 2, 3, 5, etc., provided that the conductive sheets 102 can be electrically connected to the outer conductive ring of the to-be-connected terminal.

The

conductive sheet guides

106 and 206 are fixedly disposed on the base 104, and the conductive sheet 102 is fixed to the

conductive sheet guides

106 and 206. The operator can adjust the distance between the conductive sheet 102 and the center pin 101 by the

conductive sheet guides

106 and 206. Different embodiments of the conductive

sheet guide mechanisms

106, 206 will be described in detail below with reference to different drawings.

The conductive pads 102 are preferably of an arc-shaped configuration, and the center of the arc formed by each conductive pad 102 is preferably arranged concentrically with the center of the central needle 101. More preferably, the conductive sheet 102 may be a metal conductive sheet 102 with elasticity so as to be able to more closely fit the outer metal ring of the to-be-connected terminal.

Implementation mode one

Referring to fig. 4 to 7, according to a preferred embodiment of the present invention, the conductive sheet guiding mechanism 106 includes a rack 1061 extending from the center of the coaxial cable connector 100 toward the radial outer edge thereof, and a position limiting component slidably sleeved on the rack 1061. The limiting assembly comprises a frame 1062, an elastic member 1063 and a limiting plate 1064, wherein the conductive sheet 102 is fixed on the top of the frame 1062. A stopper plate 1064, such as a plate or a pillar, may be hingedly fixed in the frame 1062 and connected to the elastic member 1063. The elastic member 1063 such as a spring is configured to be pressed when the conductive sheet guide mechanism 106 is in a natural state, thereby causing one end of the stopper plate 1064 to abut against the tooth surface of the rack 1061 so that the conductive sheet 102 cannot move in a direction away from the center pin 101.

Specifically, the stopper plate 1064 may be hingedly fixed within the bezel 1062 in the manner of fig. 6 and 7. The direction from right to left in fig. 6 and 7 is a direction from the conductive sheet 102 fixed to the bezel 1062 toward the center pin 101. In the mode of fig. 6, one end of the stopper plate 1064 abuts against the top of the housing 1062 by means of an elastic member 1063 such as a spring, and the intermediate position is hingedly fixed to a support member in the housing 1062, and the other end abuts against the tooth surface position of the rack 1061. When the connecting device is used, the conducting plate 102 positioned at the upper part of the sleeve frame 1062 is firstly pressed, so that the limiting plate 1064 is not abutted against the tooth surface any more, and the conducting plate 102 and the sleeve frame 1062 are pushed rightwards until the conducting plate 102 and the sleeve frame 1062 move to the position corresponding to the diameter of the outer-layer metal ring of the joint to be connected; after the hand is released, the elastic element 1063 returns to the natural state shown in fig. 6, that is, the limit plate 1064 abuts against the tooth surface of the rack 1061 again, and the conductive plate 102 is limited at the desired position by the limit plate 1064; and finally, inserting the corresponding joint to be connected. When the position of the conductive sheet 102 needs to be readjusted, the conductive sheet 102 can be pressed and pushed.

To achieve power connection within the coaxial cable connector 100, the rack 1061 is provided as an electrically conductive member. When transmitting signals, the signals are transmitted from the conductive sheet 102 to the rack 1061 and then transmitted to the cable in the coaxial cable connector 100.

Referring to fig. 7, another stopper assembly will be described, and in this embodiment, the difference from the embodiment of fig. 6 is only in the fixing manner of the stopper plate 1064 and the elastic member 1063. The fixing manner of the stopper plate 1064 in this form will be described below with reference to fig. 7. In this embodiment, one end of the limit plate 1064 is hingedly fixed to the top of the housing 1062, the middle position is fixed to the housing 1062 by an elastic member 1063 such as a spring, and the other end abuts on the tooth surface of the rack 1061. Since the moving manner of the conductive sheet 102 of this embodiment is the same as the operation principle of the conductive sheet guide mechanism 106 shown in fig. 6, the description thereof is omitted.

In a preferred embodiment, a scale may be provided on the rack 1061 to represent the distance between the conductive sheet 102 and the central needle 101 in the current state.

Preferably, the rack 1061 may be provided to extend in a radial direction of the coaxial cable connector 100.

Referring to fig. 4 and 5, in a preferred embodiment, structures that mate with each other may be provided on the base 104 and the bottom of the central needle 101 to allow the central needle 101 to be removably secured to the base 104. One skilled in the art can select any configuration, such as a conventional snap-fit configuration, to removably secure the central needle 101 to the base 104. In this case, the center pin 101 having different diameters and lengths may be fixed to the base 104, thereby further improving the applicability of the coaxial cable connector 100 according to the present invention.

Referring to fig. 4 and 5, the bottom of the central needle 101 is a central needle base 105 that is separate from the base 104. The above-mentioned snap-fit structures, which are fitted to each other, are provided on the central needle base 105 and the base 104, respectively. The base 104 is preferably made of an insulating and isolating material, thereby enabling the base 104 of the coaxial cable to obtain a good shielding function.

Preferably, both ends of the rack 1061 are fixed to the base 104 and the shield clip 103, respectively. It is understood that the rack 1061 may also be secured to the coaxial cable connector 100 by a bracket secured to the base 104. In this case, the holder should also be a conductive member.

In one embodiment, the side of the conductive sheet 102 facing the central needle 101 is provided with a protrusion 107. When the coaxial cable connector 100 is connected to the connector to be connected, the protrusion 107 abuts against the outer metal ring of the corresponding connector to be connected.

Second embodiment

Another preferred embodiment according to the present invention is described in detail below with reference to fig. 4 and 8. In this embodiment, it replaces the conductive sheet guide mechanism 106 shown in fig. 4 with the conductive sheet guide mechanism 206. For the base 104, the shield clip 103, and the like, reference may be made to the structure of fig. 4 to 5, and only different portions from the first embodiment will be described below.

As for the conductive sheet guide mechanism 206 in this embodiment, it includes a driving wheel 2061, a conveying belt 2063, and a driven wheel 2062. The driving wheel 2061 is located at a substantially central position of the coaxial cable connector and is engaged with the 3 peripheral driven wheels 2062. A transmission belt 2063 made of a conductive material is fitted around the concentric shaft of the driven wheel 2062 and driven by the driven wheel 2062. The conductive sheet 102 is fixed to the conveyor belt 2063. The rotation of the driving wheel 2061 drives the driven wheel 2062 to rotate, so that the transmission belt 2063 rotates, and the conductive sheet 102 moves away from the center needle 101 or moves toward the center needle 101.

The shaft to which the transmission belt 2063 and the transmission belt 2063 are connected (may be the concentric shaft described above or another shaft to which another transmission belt 2063 is fitted) is set as a conductive member. When transmitting signals, the signals are transmitted from the conductive sheet 102 to the transmission belt 2063, then transmitted to the shaft connected to the transmission belt 2063, and then transmitted to the cable in the coaxial cable connector 100.

Although not shown, driven wheels 2062 may be provided in any number of 2, 4, 5, etc.

Preferably, the direction of movement of the conveyor 2063 is parallel to the radial direction of the coaxial cable connector. More preferably, the moving direction of the conveyor belt portion to which the conductive sheet 102 is fixed may be set to the radial direction of the coaxial cable connector.

Referring to fig. 8, the conductive plate guiding mechanism 206 may further include a stopper 2064, and when the conductive plate 102 moves to a desired position, the stopper 2064 abuts against the driving wheel 2061 to limit the conductive plate 102. In addition, the stop block 2064 may also be used to abut the driven wheel 2062. In one case, a recess may be provided in the base 104 into which a portion of the stopper 2064 fits, thereby fixing the position of the stopper 2064; in another case, the stop blocks 2064 may be secured to the base 104 by screws.

Similarly to the first embodiment, the center pin 102 may be detachably fixed to the base 104 in this embodiment. Preferably, in this embodiment, the driver 2061 may be provided as the base 104.

The scope of the invention is limited only by the claims. Persons of ordinary skill in the art, having benefit of the teachings of the present invention, will readily appreciate that alternative structures to the structures disclosed herein are possible alternative embodiments, and that combinations of the disclosed embodiments may be made to create new embodiments, which also fall within the scope of the appended claims.

Claims

1. A coaxial cable joint comprises a center needle, conducting strips and a shielding clamp which are sequentially arranged from inside to outside along the radial direction of the coaxial cable joint, wherein the center needle is fixed on a base of the coaxial cable joint, the conducting strips are at least provided with two pieces and are arranged at intervals along the circumferential direction of a coaxial cable, the conducting strips are used for being electrically connected with an outer conducting ring of the coaxial cable, and the coaxial cable joint is characterized in that,

2. The coaxial cable connector of claim 1, wherein the conductive strip guiding mechanism comprises a rack extending from a center of the coaxial cable connector toward a radial outer edge thereof, and a limiting assembly slidably sleeved on the rack, the limiting assembly comprises a frame, an elastic member and a limiting plate, and the conductive strip is fixed on the frame; the limiting plate can be fixed in the sleeve frame in a hinged mode and is connected with the elastic piece; wherein the elastic member is configured to be compressed when the conductive sheet guide mechanism is in a natural state, thereby causing one end of the restriction plate to abut against a tooth surface of the rack so that the conductive sheet cannot move in a direction away from the center pin.

3. The coaxial cable connector of claim 2, wherein the rack is provided with a scale.

4. The coaxial cable connector of claim 1, wherein the conductive strip guide mechanism comprises a driving wheel, a transmission belt and a driven wheel, the driving wheel is located at a position of the coaxial cable and is used for driving the driven wheel, the transmission belt is fixed with the conductive strip and is driven by the driven wheel, and therefore the conductive strip can move in a direction away from the central needle or in a direction towards the central needle.

5. The coaxial cable connector of claim 4, wherein the conductive strip guiding mechanism further comprises a limiting block, and when the conductive strip moves to a desired position, the limiting block abuts against the driving wheel and/or the driven wheel to limit the conductive strip.

6. The coaxial cable connector of any one of claims 1-4, wherein the central pin is removably secured to the base.

7. The coaxial cable connector of claim 4, wherein the driver is the base.

8. The coaxial cable connector of claim 2, wherein the rack is an electrically conductive member.

9. The coaxial cable connector of claim 1, wherein the conductive tab is provided with a projection on a side facing the center pin.

10. The coaxial cable connector of claim 4, wherein the direction of movement of the conveyor belt is parallel to or coincident with a radial direction of the coaxial cable connector.

11. The coaxial cable connector of claim 2, wherein the rack extends radially of the coaxial cable connector.

12. The coaxial cable connector of claim 9 or 10, wherein the conductive sheet is an arc-shaped sheet, and the center of the conductive sheet is concentric with the center of the central needle.

13. The coaxial cable connector of claim 1, wherein the conductive strip is a metallic conductive strip.