CN107078438A - Coaxial connector assemblies and coaxial connector - Google Patents

Coaxial connector assemblies and coaxial connector Download PDF

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Publication number
CN107078438A
CN107078438A CN201480082220.1A CN201480082220A CN107078438A CN 107078438 A CN107078438 A CN 107078438A CN 201480082220 A CN201480082220 A CN 201480082220A CN 107078438 A CN107078438 A CN 107078438A
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CN
China
Prior art keywords
sleeve
coaxial connector
outer conductor
radial
clamping
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Granted
Application number
CN201480082220.1A
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Chinese (zh)
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CN107078438B (en
Inventor
张飞
刘爱平
宋祥龙
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Anhui Tatfook Technology Co Ltd
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Shenzhen Tatfook Technology Co Ltd
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Publication of CN107078438A publication Critical patent/CN107078438A/en
Application granted granted Critical
Publication of CN107078438B publication Critical patent/CN107078438B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap

Abstract

A kind of coaxial connector and its component for communication equipment field.The coaxial connector assemblies include the first coaxial connector (100) and the second coaxial connector (200), first coaxial connector includes the first outer conductor (130), second coaxial connector includes the second outer conductor (230), one end of first outer conductor is provided with holder (140) and around the radial direction locating part (161) of the holder, radial direction locating part can be moved axially along the first outer conductor, inner surface setting of the holder away from first outer conductor one end has the first bite (144), the outer surface of second outer conductor is provided with the second bite (231);When the first coaxial connector and the second coaxial connector are in locked state, first outer conductor is socketed on the second outer conductor, the outer conductor of holder resilient clamp second, radial direction locating part is kept with the first bite diametrically, limit the radially enlarged space of holder, first bite and the second bite are maintained to the state being engaged vertically, it is ensured that coaxial connector assemblies in locked state by axial force when the stability that connects.

Description

Coaxial connector assembly and coaxial connector
[ technical field ] A method for producing a semiconductor device
The invention relates to a coaxial connector assembly and a coaxial connector.
[ background of the invention ]
The coaxial connector assembly is a component capable of quickly connecting a coaxial cable, and the coaxial cable can be detachably connected without threads. When two coaxial connectors are mated, the outer conductor of one coaxial connector is sleeved on the outer conductor of the other coaxial connector, and in order to maintain the stability of the connection of the coaxial connector assembly, a clamping piece for elastically clamping the outer conductor of the other coaxial connector is usually arranged at the end part of the outer conductor of the one coaxial connector. However, the axial friction force generated between the two coaxial connectors is smaller due to the elastic clamping force of the clamping piece, and when the coaxial connectors are subjected to axial deviation force at the same time, the coaxial connector assemblies are easy to separate, so that the connection stability is poor.
[ summary of the invention ]
The invention aims to provide a coaxial connecting component and a coaxial connector with good connection stability.
The coaxial connector assembly provided by the invention comprises a first coaxial connector and a second coaxial connector, wherein the first coaxial connector comprises a first outer conductor, the second coaxial connector comprises a second outer conductor, one end of the first outer conductor is provided with a clamping piece and a radial limiting piece surrounding the clamping piece, the radial limiting piece can move axially along the first outer conductor, the inner surface of one end, far away from the first outer conductor, of the clamping piece is provided with a first meshing part, and the outer surface of the second outer conductor is provided with a second meshing part; when the first coaxial connector and the second coaxial connector are in a locked state, the first outer conductor is sleeved on the second outer conductor, the clamping piece elastically clamps the second outer conductor, the radial limiting piece is kept opposite to the first meshing portion in the radial direction, the radial expansion space of the clamping piece is limited, and the first meshing portion and the second meshing portion are kept in an axially meshed state.
The coaxial connector comprises an outer conductor, wherein one end of the outer conductor is provided with a clamping piece and a radial limiting piece surrounding the clamping piece, the radial limiting piece can move along the axial direction of the outer conductor, the inner surface of one end, far away from the outer conductor, of the clamping piece is provided with an engaging part, when the coaxial connector and another coaxial connector are in a locking state, the radial limiting piece is kept to be opposite to the engaging part in the radial direction, the radial expansion space of the clamping piece is limited, and the engaging part of the coaxial connector and the engaging part of the other coaxial connector are kept in an axial engaging state.
According to the coaxial connector assembly provided by the invention, the inner surface of one end of the clamping piece, which is far away from the first outer conductor, is provided with the first meshing part, the outer surface of the second outer conductor is provided with the second meshing part, and meanwhile, the coaxial connector assembly is also provided with the radial limiting piece surrounding the clamping piece. When the coaxial connector assembly is in a locked state, even if the first outer conductor and the second outer conductor are subjected to axial force which deviates from each other, the radial limiting piece is radially opposite to the first meshing part, the radial expansion space of the clamping piece is limited, the first meshing part and the second meshing part are kept in a state of meshing along the axial direction, and the connection stability of the coaxial connector assembly is ensured when the coaxial connector assembly is subjected to the axial force in the locked state.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a cross-sectional view of a coaxial connector assembly in a locked condition according to one embodiment;
FIG. 2 is a cross-sectional view of a first inner conductor of the first coaxial connector of the first embodiment;
FIG. 3 is a cross-sectional view of a first outer conductor of the first coaxial connector of the first embodiment;
FIG. 4 is a cross-sectional view of the coaxial connector assembly of one embodiment in a mated condition;
FIG. 5 is a cross-sectional view of the coaxial connector assembly of one embodiment in an extracted state;
FIG. 6 is a cross-sectional view of a coaxial connector assembly according to a second embodiment;
FIG. 7 is a cross-sectional view of a third embodiment of the coaxial connector;
FIG. 8 is a cross-sectional view of the outer conductor of the third embodiment of the coaxial connector;
fig. 9 is a cross-sectional view of a coaxial connector according to a fourth embodiment.
[ detailed description ] embodiments
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example one
As shown in fig. 1, the present embodiment provides a coaxial connector assembly including a first coaxial connector 100 including, in order from inside to outside, a first inner conductor 110, a first insulator 120, and a first outer conductor 130, and a second coaxial connector 200 including, in order from inside to outside, a second inner conductor 210, a second insulator 220, and a second outer conductor 230. The first insulator 120 and the first inner conductor 110, and the first insulator 120 and the first outer conductor 110 are in interference fit. To keep the axial position of the first inner conductor 110 stable within the first insulator 120, the outer surface of the first inner conductor 110 is provided with barbs embedded in the first insulator 120. Also to maintain the axial position of the first insulator 120 within the first outer conductor 130, the inner surface of the first outer conductor 130 is provided with barbs that embed the first insulator 120.
There is also an interference fit between the second insulator 220 and the second inner conductor 210, and between the second insulator 220 and the second outer conductor 230. To keep the axial position of the second inner conductor 210 stable within the second insulator 220, the outer surface of the second inner conductor 210 is provided with barbs embedded within the second insulator 220. To maintain the axial position of the second insulator 220 within the second outer conductor 230, the inner surface of the second outer conductor 230 is also provided with barbs that embed into the second insulator 220.
Referring to fig. 2, the first inner conductor 110 is cylindrical, and has a pin 111 inserted into the pin slot of the second inner conductor 210 at one end and a blind hole 112 for inserting a coaxial cable at the other end.
Referring to fig. 3, the end of the first outer conductor 130 near the pin 111 of the first inner conductor 110 is provided with a clamping member 140, i.e. the clamping member 140 is located at the end of the first outer conductor 130 near the second coaxial connector 200. The clamping member 140 may be integrally formed with the first outer conductor 130, or may be sleeved on the first outer conductor 130 and connected to the first outer conductor 130 in an interference fit manner. When the first coaxial connector 100 and the second coaxial connector 200 are in the locked state, the first outer conductor 130 is sleeved on the second outer conductor 230, and the clamping piece 140 elastically clamps the second outer conductor 230.
The clamping member 140 is cylindrical and comprises a plurality of elastic pieces 141 extending along the axial direction, and a slot 142 extending along the axial direction is arranged between the adjacent elastic pieces 141. The outer periphery of the clamping member 140 is fitted with a tightening member 150, and the tightening member 150 can apply a radially inward contraction force to the clamping member 140. Thus, even if the clamping member 140 loses most of the elastic clamping force during the repeated insertion and extraction of the coaxial connector, the tightening member 150 can still maintain the elastic clamping force of the clamping member 140 on the second outer conductor 230, thereby increasing the service life of the first coaxial connector 100.
Generally, because beryllium copper has relatively good elasticity, beryllium copper is used as the material of the first outer conductor 130, but beryllium copper is relatively expensive, and is generally subjected to heat treatment, so that the cost of beryllium copper is relatively high. In the first coaxial connector 100 provided by this embodiment, since the clamping member 140 is sleeved with the tightening member 150 for enhancing the elastic clamping force of the clamping member 140, the requirement on the elasticity of the clamping member 140 itself is greatly reduced, and therefore, the material of the first outer conductor 130 can be brass which has poor elasticity, but has lower price and does not need to be heat-treated.
The gripping member 150 is disposed at an end of the gripping member 140 away from the first outer conductor 130 because the further the gripping member 150 is disposed from the first outer conductor 130 when the same amount of radial contraction force is applied, the greater the deformation of the gripping member 140 and the greater the elastic gripping force of the gripping member 140 on the second outer conductor 130. In order to hold the tightening member 150 on the end of the clamping member 140 remote from the first outer conductor 130, the outer surface of the end of the clamping member 140 remote from the first outer conductor 130 is provided with two clamping rings 143 projecting radially outwards, the tightening member 150 being arranged between the two clamping rings 143.
The present embodiment provides a first engaging portion 144 protruding radially inward on the inner surface of the end of the clamping member 140 away from the first outer conductor 130 to increase the elastic clamping force of the clamping member 140 on the second outer conductor 230 without changing the inner diameter of the clamping member 140. Meanwhile, the present embodiment further provides a second engaging portion 231 protruding radially outward on the outer surface of the second outer conductor 230, and the first engaging portion 144 and the second engaging portion 231 are engaged with each other in the axial direction when the first coaxial connector 100 and the second coaxial connector 200 are in the locked state. This increases the axial engaging force between the first engaging portion 144 and the second engaging portion 231 in addition to the axial frictional force between the first engaging portion 144 and the second outer conductor 130 between the first coaxial connector 100 and the second coaxial connector 200, thereby ensuring the stability of the locked state of the first coaxial connector 100 and the second coaxial connector 200.
The second engagement portion 231 has a triangular shape in longitudinal section, and the inclination angle of the triangle near the first coaxial connector 100 is smaller than that of the triangle near the second coaxial connector 200. This arrangement facilitates the first engagement portion 144 to pass over the second engagement portion 231 and form an axial engagement with the second engagement portion 231 when the second coaxial connector 200 is inserted into the first coaxial connector 100; when the second coaxial connector 200 is pulled out of the first coaxial connector 100, the difficulty of disengaging the first engagement portion 144 and the second engagement portion 231 from the axial engagement increases.
The inner surface of the first outer conductor 130 is stepped and includes a sealing region 131 and a holding region 132 in order along the axial direction, the sealing region 131 is adjacent to the inner surface of the clamping member 140, and the inner diameter of the sealing region 131 is smaller than the inner diameter of the clamping member 140 but larger than the inner diameter of the holding region 132. The sealing area 131 is provided with an annular groove 1311, and a sealing ring is arranged in the groove 1311, and when the first coaxial connector 100 and the second coaxial connector 200 are in a locked state, the sealing ring is in sealing contact with the outer surface of the second outer conductor 230, so that moisture and air are prevented from entering. A first insulator 120 is disposed within the holding region 132.
The outer surface of the first outer conductor 130 is stepped, and includes a flange portion 133, an intermediate portion 134 and a catching portion 135, whose outer diameters are sequentially reduced, the flange portion 133 is adjacent to the catching member 140,
the flange portion 133 is sleeved with a limiting sleeve 160, the limiting sleeve 160 can axially move along the first outer conductor 130, the middle portion 134 is sleeved with the elastic piece 170 and the operating sleeve 180 in sequence along the radial direction, the clamping portion 135 is sleeved with a crimping sleeve 190 in interference fit connection with the clamping portion, and the elastic piece 170 is clamped between the flange portion 133 and the crimping sleeve 190. One end of the operation sleeve 180 is sleeved on the limiting sleeve 160 and connected with the limiting sleeve 160 in an interference fit manner, and the other end of the operation sleeve 180 is bent inwards along the radial direction to form a driving ring 181.
One end of the pressing sleeve 190, which is away from the middle portion 134, protrudes radially outward to form a first axial stop ring 191, and the outer diameter of the first axial stop ring 191 is larger than the inner diameter of the driving ring 181, so as to limit the maximum axial moving distance of the operation sleeve 180, which drives the stop sleeve 160 to compress the elastic member 170 from the flange portion 133 side. The outer surface of the second outer conductor 230 protrudes outward in the radial direction to form a second axial limiting ring 232, and the outer diameter of the second axial limiting ring 232 is larger than the inner diameter of the radial limiting ring 161, so as to limit the maximum axial moving distance of the operating sleeve 180 driving the limiting sleeve 160 to compress the elastic member 170 from the clamping portion 135 side. In order to avoid direct damage to the elastic element 170 by the end face of the limiting sleeve 160 or the driving ring 181 of the actuating sleeve 180 during compression of the elastic element 170, spacers are provided on both sides of the elastic element 170.
The cinch 150 and elastic member 170 may be implemented as a spring or elastic sleeve. When a spring is used, the axial spacing of the springs used for the resilient member 170 is much greater than the axial spacing of the springs used for the gripping member 150, since the gripping member 150 provides the radial contractive force and the resilient member 170 applies the axial compressive force.
The process of the present coaxial connector assembly is described below in conjunction with fig. 4, 1 and 5. When the first coaxial connector 100 is not used, since the operating sleeve 180 is only subjected to the restoring force of the elastic member 170, the operating sleeve 180 holds the radial direction stopper 161 at a position radially opposite to the first engagement portion 144 by the stopper sleeve 160. When it is desired to assemble the coaxial connector assembly, as shown in the state diagram during the insertion of the coaxial connector assembly of fig. 4, an opposite axial force is applied to the operating sleeve 180 of the first coaxial connector 100 and the second outer conductor 230 of the second coaxial connector 200, the second outer conductor 230 enters the holding member 140, the first engaging portion 144 at the end of the holding member 140 axially slides along the outer surface of the second outer conductor 230, when the first engaging portion 144 and the second engaging portion 231 axially slide to the second engaging portion 231, the first engaging portion 144 and the second engaging portion 231 radially overlap, and the axial force applied to the second outer conductor 230 is transmitted to the first outer conductor 130. If the relative axial force is greater than the compression force of the elastic member 170, the first outer conductor 130 compresses the elastic member 170 from the flange portion 133 side through the flange portion 133; the operating sleeve 180 compresses the elastic member 170 from the side of the engaging portion 135 via the driving ring 181, and drives the limiting sleeve 160 to move away from the first outer conductor 130, so that the first engaging portion 144 is moved away from a position radially opposite to the radial limiting ring 161 and retracted into the limiting sleeve 160. The interior space of the restraining sleeve 160 is sufficient to allow the clip 140 to expand until the first and second snap-in portions 144, 231 fully radially overlap such that the first snap-in portion 144 can pass over the second snap-in portion 231 within the restraining sleeve 160 to form an axial snap-in engagement with the second snap-in portion 231.
When the first engaging portion 144 and the second engaging portion 231 are axially engaged, the application of the opposite axial force to the operating sleeve 180 and the second outer conductor 230 is stopped, and the operating sleeve 180 holds the radial stopper ring 161 at a position radially opposite to the first engaging portion 144 by the restoring force of the elastic member 170, so that the first coaxial connector 100 and the second coaxial connector 200 return to the locked state shown in fig. 1.
In the locked state, if a force is applied to the first outer conductor 130 of the first coaxial connector 100 and the second outer conductor 230 of the second coaxial connector 200 in the opposite axial directions, the first engaging portion 144 and the second engaging portion 231 start to slide in the axial direction, and the outer diameter of the clamping member 140 is expanded along with the radial superposition. Since the operating sleeve 180 is now only axially forced by the resilient member 170 and cannot compress the resilient member 170 from the other side by engaging the driving ring 181 with the first outer conductor 130, the radial stopper ring 161 is still held in a position radially opposite to the first engagement portion 144. Since the expansion of the clamping member 140 is limited by the radial limiting ring 161, when the first engaging portion 144 and the second engaging portion 231 are radially overlapped to a certain extent, the outer diameter of the clamping member 140 may expand to block the radial limiting ring 161, and at this time, the first engaging portion 144 and the second engaging portion 231 stop sliding axially, so that the first engaging portion 144 cannot pass the second engaging portion 231 in the radial direction, but still maintain the axial engagement with the second engaging portion 231, that is, the second coaxial connector 200 cannot be pulled out from the first coaxial connector 100. In this paragraph, the point of application of force on the first coaxial connector 100 is located on the first inner conductor 110 or the first insulator 120 as well as the effect on the first outer conductor 130. Likewise, the point of application of force on the second coaxial connector 200 in this paragraph is on the second inner conductor 210 or the second insulator 220 as well as on the second outer conductor 230.
Fig. 5 is a state diagram during the pulling-out of the coaxial connector assembly, in the locked state of the coaxial connector assembly, if the operating sleeve 180 and the second outer conductor 230 are applied with axial forces that are away from each other, axial sliding occurs between the first engagement portion 144 and the second engagement portion 231, and accordingly, radial superposition occurs, and the axial force applied to the second outer conductor 230 is transmitted to the first outer conductor 130. When the axial force is larger than the compression force of the elastic member 170, the first outer conductor 130 compresses the elastic member 170 from the seizing portion 135 side through the press-fit sleeve 190; the operating sleeve 180 compresses the elastic member 170 from the flange portion 133 side through the limiting sleeve 160, and drives the limiting sleeve 160 to move toward the first outer conductor 130, so that the first engaging portion 144 is brought away from the position radially opposite to the radial limiting ring 161 and extends out of the limiting sleeve 160. Since the first engagement portion 144 has extended beyond the stop sleeve 160, the clip 140 is sufficiently radially expanded that the first engagement portion 144 moves axially into full radial overlap with the second engagement portion 231 and over the second engagement portion 231 until it is disengaged from axial engagement with the second engagement portion 231. I.e. to allow the second coaxial connector 200 to be pulled out of the first coaxial connector 100.
Example two
The coaxial connector assembly provided in this embodiment is the same as the coaxial connector assembly provided in the first embodiment, and as shown in fig. 6, the first coaxial connector includes a first inner conductor 410, a first insulator 420 and a first outer conductor 430, which are sequentially arranged from inside to outside, and the second coaxial connector includes a second inner conductor 210, a second insulator 220 and a second outer conductor 230, which are sequentially arranged from inside to outside; one end of the first outer conductor 430 is provided with a clamping piece 440 and a limiting sleeve 460 surrounding the clamping piece 440, the inner surface of one end of the clamping piece 440 far away from the first outer conductor is provided with a first meshing part 444, and the outer surface of the second outer conductor 230 is provided with a second meshing part 231 axially meshed with the first meshing part 444 in a locking state; the retaining sleeve 460 is folded inwardly near the end of the retaining member 440 to form a radial retaining ring 461. The coaxial connector assembly differs from the coaxial connector assembly provided in the first embodiment in that the elastic member, the operating sleeve and the crimping sleeve of the first coaxial connector are eliminated, a thread pair is arranged between the limiting sleeve 460 and the outer conductor 430 to replace the functions of the eliminated components, and the outer surface of the first outer conductor 430 does not need to be provided with an intermediate part or a clamping part, so that the structure is simpler.
With the coaxial connector assembly of the present embodiment, in the initial state, the radial direction stopper ring 461 of the first coaxial connector 400 is held in a position radially opposite to the first engagement portion 444. When it is desired to insert the second coaxial connector 200 into the first coaxial connector 400, the position-limiting sleeve 460 is rotated to bring the radial position-limiting member 461 away from the position radially opposite to the first engagement portion 444, so that the first engagement portion 444 of the clamping member 440 is retracted into the position-limiting sleeve 460, so that the clamping member 440 has enough space to expand to allow the first engagement portion 144 to pass over the second engagement portion 231, and form an axial engagement with the second engagement portion 231;
when the first coaxial connector 400 is fully inserted into the second coaxial connector 200, the limiting sleeve 460 is rotated to move the radial limiting ring 461 to a position radially opposite to the first engaging portion 444 of the clamping member 440, so that the first coaxial connector 400 and the second coaxial connector 200 are maintained in the locked state. In the locked state, if a force is applied to the first outer conductor 430 of the first coaxial connector 400 and the second outer conductor 230 of the second coaxial connector 200 in an axial direction, which is away from each other, the stopper sleeve 440 holds the radial stopper ring 461 at a position radially opposite to the first engaging portion 444, so that the expansion space of the clip 440 is restricted, and the axial engagement between the first engaging portion 444 and the second engaging portion 231 can be maintained.
When it is desired to pull the second coaxial connector out of the first coaxial connector 400, the position limiting sleeve 460 is rotated to limit the radial position limiter 461 from being radially opposite to the first engaging portion 444, so that the first engaging portion 444 of the clamping member 440 extends out of the position limiting sleeve 460, and the clamping member 440 has enough space to expand to allow the first engaging portion 444 to pass over the second engaging portion 231 and disengage from the axial engagement with the second engaging portion 231.
EXAMPLE III
As shown in fig. 7, the coaxial connector provided by the present invention comprises an inner conductor 310, an insulator 320, and an outer conductor 330 in this order from inside to outside. Interference fits are provided between the insulator 320 and the inner conductor 310, and between the insulator 320 and the outer conductor 330, and in order to maintain the axial position of the inner conductor 310 within the insulator 320 stable, the outer surface of the inner conductor 310 is provided with barbs embedded within the insulator 320. Also to maintain the axial position of insulator 320 within outer conductor 330, the inner surface of outer conductor 330 is provided with barbs that embed insulator 320.
One end of the inner conductor 310 is provided with a needle head inserted into a needle groove of the inner conductor of the other coaxial connector, and the other end is provided with a blind hole for plugging a coaxial cable.
Referring to fig. 8, the outer conductor 330 is provided with a grip 340 at an end thereof adjacent to the needle 311 of the inner conductor 310. The clamping member 340 may be integrally formed with the outer conductor 330, or may be sleeved on the outer conductor 330 and connected to the outer conductor 330 in an interference fit manner. When the coaxial connector and the other coaxial connector are in a locked state, the outer conductor 330 of the coaxial connector of the present embodiment is sleeved on the outer conductor of the other coaxial connector, and the clamping member 340 elastically clamps the outer conductor of the other coaxial connector.
The clamping member 340 is cylindrical and comprises a plurality of elastic pieces 341 extending along the axial direction, and a cutting groove 342 extending along the axial direction is arranged between the adjacent elastic pieces 341. The outer periphery of the gripping member 340 is fitted with a tightening member 350, and the tightening member 350 can apply a radially inward contraction force to the gripping member 340. Thus, even if the clamping member 340 loses most of the elastic clamping force during the repeated insertion and extraction process between the coaxial connectors, the tightening member 350 can still maintain the elastic clamping force of the clamping member 340, thereby increasing the service life of the coaxial connector provided by the embodiment.
Generally, because beryllium copper has good elasticity, beryllium copper is used as the material of the outer conductor 330, but beryllium copper is expensive, and generally needs to be subjected to heat treatment, so that the cost of beryllium copper is high. In the coaxial connector provided by this embodiment, since the clamping member 340 is sleeved with the tightening member 350 for increasing the elastic clamping force of the clamping member 340, the requirement on the elasticity of the clamping member 340 itself is greatly reduced, and therefore, the material of the outer conductor 130 can be brass which has poor elasticity, but has lower price and does not need to be heat-treated.
The clamping member 350 is disposed at an end of the clamping member 340 away from the outer conductor 330, because under the same amount of radial contraction force, the farther the force application position of the clamping member 350 is away from the outer conductor 330, the greater the deformation of the clamping member 340, and the greater the elastic clamping force of the clamping member 340 on the outer conductor 330. In order to retain the gripping member 350 on the end of the gripping member 340 remote from the outer conductor 330, the outer surface of the end of the gripping member 340 remote from the outer conductor 330 is provided with two clamping rings 343 projecting radially outwards, the gripping member 350 being arranged between the two clamping rings 343.
The present embodiment is provided with a radially inwardly protruding bite 344 on the inner surface of the end of the clamping member 340 remote from the outer conductor 330 to increase the elastic clamping force of the clamping member 340 with a constant inner diameter of the clamping member 340. In addition to the axial friction force generated by the elastic clamping force of the clamping member 340 between the two coaxial connectors, an engaging portion axially engaged with the engaging portion 344 of the coaxial connector of the present embodiment may be provided on the outer surface of the outer conductor of the other coaxial connector, thereby further increasing the stability of the two coaxial connectors in the locked state.
The inner surface of the outer conductor 330 is stepped and sequentially includes a sealing area 331 and a holding area 332 along the axial direction, the sealing area 331 is adjacent to the inner surface of the clamping member 340, and the inner diameter of the sealing area 331 is smaller than that of the clamping member 340 and larger than that of the holding area 332. The sealed area 331 is provided with an annular groove 3311, a sealing ring is arranged in the groove 3311, and when the two coaxial connectors are in a locked state, the sealing ring is in sealed contact with the outer surface of the outer conductor of the other coaxial connector to prevent moisture and air from entering. An insulator 320 is disposed within the retention region 332.
The outer surface of the outer conductor 330 is in a step shape and comprises a flange part 333, a middle part 334 and a clamping part 335, the outer diameters of the flange part 333, the middle part 334 and the clamping part 335 are sequentially reduced, the flange part 333 is adjacent to the clamping part 340, a limiting sleeve 360 is sleeved on the flange part 333, and one end, close to the clamping part 340, of the limiting sleeve 360 is turned inwards to form a radial limiting ring 361. The middle portion 334 is sleeved with an elastic member 370 and an operating sleeve 380 in sequence along the radial direction. The clamping portion 335 is sleeved with a press-connection sleeve 390 which is connected with the clamping portion in an interference fit manner, and the elastic member 370 is clamped between the flange portion 333 and the press-connection sleeve 390. One end of the operation sleeve 380 is sleeved on the limit sleeve 360 and is connected with the limit sleeve 360 in an interference fit manner, the limit sleeve 360 can be driven to compress the elastic part 370 from the flange part 333 side, and the other end of the operation sleeve 380 is bent inwards along the radial direction to form a driving ring 381, and the elastic part 370 can be compressed from the clamping part 335 side.
When an axial force toward the engagement portion 335 is applied to the operating sleeve 380, the operating sleeve 380 compresses the elastic member 370 from the flange portion 333 side through the stopper sleeve 360, and the stopper sleeve 360 is moved in a direction approaching the outer conductor 330, so that the engagement portion 344 protrudes outside the stopper sleeve. When an axial force toward the flange portion 333 side is applied to the operating sleeve 380, the operating sleeve 380 compresses the elastic member 370 from the snap portion 335 side via the driving ring 381, and drives the stopper sleeve 360 to move in a direction away from the outer conductor 330, so that the engagement portion 344 retracts into the stopper sleeve 360. When the axial force applied to the operating sleeve 380 is stopped, the elastic member 370 applies a restoring force to the restricting sleeve 360, pulling the radial restricting ring 361 back to a position radially opposite to the bite 344.
One end of the press-fit sleeve 390 remote from the intermediate portion 334 protrudes radially outward to form an axial stopper ring 391, and the outer diameter of the axial stopper ring 391 is larger than the inner diameter of the driving ring 381, so as to limit the maximum axial moving distance of the operation sleeve 380 that drives the stopper sleeve 360 to compress the elastic member 370 from the flange portion 333 side. In order to avoid direct damage to the elastic element 370 by the end face of the stop sleeve 360 or the driving ring 381 of the actuating sleeve 380 during compression of the elastic element 370, the elastic element 370 is provided with a gasket on both sides.
The cinch 350 and elastic member 370 may be implemented as a spring or an elastic sleeve. When a spring is used, the axial spacing of the springs used for the resilient member 370 is much greater than the axial spacing of the springs used for the gripping member 350, since the gripping member 350 provides a radial contractive force and the resilient member 370 applies an axial compressive force.
Example four
The coaxial connector provided in this embodiment is the same as the coaxial connector provided in the third embodiment, and includes an inner conductor 510, an insulator 520, and an outer conductor 530, which are sequentially arranged from inside to outside, one end of the outer conductor 530 is provided with a clamping member 540 and a limiting sleeve 560 surrounding the clamping member 540, an inner surface of one end of the clamping member 540, which is far away from the outer conductor, is provided with an engaging portion 544, and one end of the limiting sleeve 560, which is close to the clamping member 540, is turned inwards to form a radial limiting ring 561. The coaxial connector is different from the coaxial connector provided by the third embodiment in that: the elastic member, the operation sleeve and the crimping sleeve of the first coaxial connector are eliminated, a screw pair is arranged between the limiting sleeve 560 and the outer conductor 530 to replace the functions of the eliminated parts, and the outer surface of the outer conductor 530 is simpler without a flange part, a clamping part and a middle part.
With the coaxial connector of the present embodiment, in the initial state, the radial stopper ring 561 is held in a position radially opposite to the bite portion 544. When another coaxial connector needs to be inserted into the coaxial connector of the embodiment, the limiting sleeve 560 is rotated to bring the radial limiting member 561 away from a position radially opposite to the engaging part 544, so that the engaging part 544 of the clamping member 540 is retracted into the limiting sleeve 560, and the clamping member 540 has enough space to expand to allow the engaging part 544 to pass over the engaging part of the other coaxial connector to form axial engagement with the engaging part of the other coaxial connector;
when the other coaxial connector is fully inserted into the coaxial connector of the present embodiment, the limiting sleeve 560 is rotated to move the radial limiting ring 561 to a position radially opposite to the engaging portion 544 of the clamping member 540, so that the coaxial connector of the present embodiment and the other coaxial connector are maintained in a locked state. In the locked state, if a simultaneously applied axial force is applied to the outer conductor of the coaxial connector of the present embodiment and the outer conductor of the other coaxial connector, since the stopper sleeve 540 holds the radial stopper ring 561 at a position radially opposite to the engaging portion 544 of the coaxial connector of the present embodiment, the expanded space of the holder 540 is restricted, so that the axial engagement between the engaging portions of the two coaxial connectors can be maintained.
When it is desired to pull another coaxial connector out of the coaxial connector of this embodiment, the limiting sleeve 560 is rotated to limit the radial position-limiting member 561 from being radially opposite to the engaging portion 544 of the clamping member 540, so that the engaging portion 544 of the clamping member 540 extends out of the limiting sleeve 560, so that the clamping member 540 has enough space to expand to allow the engaging portion 544 to pass over the engaging portion of the other coaxial connector and disengage from the axial engagement with the engaging portion of the other coaxial connector.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (20)

  1. A coaxial connector assembly comprising a first coaxial connector comprising a first outer conductor and a second coaxial connector comprising a second outer conductor,
    a clamping piece and a radial limiting piece surrounding the clamping piece are arranged at one end of the first outer conductor, the radial limiting piece can move axially along the first outer conductor, a first meshing part is arranged on the inner surface of one end, far away from the first outer conductor, of the clamping piece, and a second meshing part is arranged on the outer surface of the second outer conductor;
    when the first coaxial connector and the second coaxial connector are in a locked state, the first outer conductor is sleeved on the second outer conductor, the clamping piece elastically clamps the second outer conductor, the radial limiting piece is kept to be radially opposite to the first meshing portion, the radial expansion space of the clamping piece is limited, and the first meshing portion and the second meshing portion are kept in an axially meshed state.
  2. The coaxial connector assembly of claim 1, wherein the first outer conductor is sleeved with a limiting sleeve, one end of the limiting sleeve, which is close to the clamping member, is turned inwards to form a radial limiting ring, and the radial limiting member is the radial limiting ring.
  3. The coaxial connector assembly of claim 2, wherein a thread pair is provided between the retaining sleeve and the first outer conductor, the retaining sleeve being capable of moving the radial retaining ring away from a position radially opposite the first engagement portion when the retaining sleeve is rotated.
  4. The coaxial connector assembly of claim 2, wherein the outer surface of the first outer conductor is stepped and axially includes a flange portion, an intermediate portion and a clamping portion, the outer diameter of the flange portion decreasing in order, the flange portion being adjacent to the clamping member, the stop sleeve being sleeved on the flange portion;
    the middle part is sequentially sleeved with an elastic piece and an operation sleeve outwards along the radial direction, the clamping part is sleeved with a compression joint sleeve in interference fit connection with the clamping part, the elastic piece is clamped between the flange part and the compression joint sleeve, one end of the operation sleeve is sleeved on the limiting sleeve and is in interference fit connection with the limiting sleeve, and the other end of the operation sleeve is bent inwards along the radial direction to form a driving ring;
    when right when the axial force who deviates from the second coaxial connector is applyed to the operation sleeve, the operation sleeve passes through limit sleeve from flange portion side compression elastic component, drives limit sleeve towards the direction motion of being close to first outer conductor, makes first interlock portion stretches out outside the limit sleeve, when right when the operation sleeve applys the axial force of face towards the second coaxial connector, the operation sleeve drives limit sleeve towards the direction motion of keeping away from first outer conductor from the elastic component of joint portion side compression through driving the ring, makes in the first interlock portion indentation limit sleeve, when stopping to when the operation sleeve applys axial force, the elastic component is right the restoring force is applyed to limit sleeve, will radial limit ring pulls back with first interlock portion radial relative position.
  5. The coaxial connector assembly of claim 4, wherein an end of the crimp sleeve remote from the intermediate portion projects radially outwardly to form a first axial restraining ring having an outer diameter greater than an inner diameter of the driving ring to limit a maximum axial travel distance of the operating sleeve driving the restraining sleeve to compress the resilient member from the flange portion side;
    the outer surface of the second outer conductor protrudes outwards along the radial direction to form a second axial limiting ring, and the outer diameter of the second axial limiting ring is larger than the inner diameter of the radial limiting ring so as to limit the maximum axial moving distance of the operation sleeve, which compresses the elastic piece, from the clamping part side through the driving ring.
  6. The coaxial connector assembly of any one of claims 1-5, wherein the clamping member comprises a plurality of axially extending resilient plates with axially extending slots disposed between adjacent plates, and wherein the clamping member is sleeved with a gripping member capable of applying a radially inward contractive force to the clamping member.
  7. The coaxial connector assembly of claim 6, wherein the clamp member outer surface is provided with two clamp rings at a position opposite to the first engagement portion, the clamping member being clamped in the two clamp rings.
  8. The coaxial connector assembly of claim 6, wherein the material of the first outer conductor is brass.
  9. The coaxial connector assembly of claim 6, wherein the clip is integrally formed with the first outer conductor.
  10. The coaxial connector assembly of claim 6, wherein an area of the inner surface of the first outer conductor adjacent the retainer defines an annular groove, and wherein a seal is disposed within the groove and is in sealing contact with the outer surface of the second outer conductor when the first and second coaxial connectors are in the mated configuration.
  11. A coaxial connector comprises an outer conductor and is characterized in that one end of the outer conductor is provided with a clamping piece and a radial limiting piece surrounding the clamping piece, the radial limiting piece can move along the axial direction of the outer conductor, the inner surface of one end of the clamping piece, which is far away from the outer conductor, is provided with an occlusion part,
    when the coaxial connector and the other coaxial connector are in a locked state, the radial limiting piece is kept to be opposite to the meshing part in the radial direction, the radial expansion space of the clamping piece is limited, and the meshing part of the other coaxial connector are kept in an axially meshed state.
  12. The coaxial connector of claim 11, wherein the outer conductor is sleeved with a limiting sleeve, one end of the limiting sleeve near the clamping member is folded inwards to form a radial limiting ring, and the radial limiting member is the radial limiting ring.
  13. The coaxial connector of claim 12, wherein a pair of threads is provided between the stop sleeve and the outer conductor, the stop sleeve being capable of moving the radial stop ring away from a position radially opposite the bite when the stop sleeve is rotated.
  14. The coaxial connector of claim 12, wherein the outer surface of the outer conductor is stepped and includes a flange portion, an intermediate portion and a catching portion having successively decreasing outer diameters in the axial direction, the flange portion being adjacent to the clamping member, the stop sleeve being fitted over the flange portion;
    the middle part is sequentially sleeved with an elastic piece and an operation sleeve outwards along the radial direction, the clamping part is sleeved with a compression joint sleeve in interference fit connection with the clamping part, the elastic piece is clamped between the flange part and the compression joint sleeve, one end of the operation sleeve is sleeved on the limiting sleeve and is in interference fit connection with the limiting sleeve, and the other end of the operation sleeve is bent inwards along the radial direction to form a driving ring;
    when right when the axial force towards joint portion side is applyed to the operation sleeve, the operation sleeve passes through limit sleeve follows flange portion side compression elastic component, drives limit sleeve towards the direction motion of being close to the outer conductor, makes the interlock portion stretches out outside the limit sleeve, and when right when the axial force towards flange portion side is applyed to the operation sleeve, the operation sleeve drives limit sleeve towards the direction motion of keeping away from the outer conductor through driving ring from joint portion side compression elastic component, makes in the interlock portion indentation limit sleeve, when stopping to when the axial force is applyed to the operation sleeve, the elastic component is right the restoring force is applyed to limit sleeve, will radial spacing ring draws back and interlock portion radial relative position.
  15. The coaxial connector according to claim 14, wherein an end of the crimp sleeve remote from the intermediate portion projects radially outward to form an axial retainer ring having an outer diameter larger than an inner diameter of the driving ring to limit a maximum axial moving distance of the operation sleeve driving the retainer sleeve to the compression spring from the flange portion side.
  16. The coaxial connector of any one of claims 11-15, wherein the clamping member comprises a plurality of axially extending resilient plates with axially extending slots between adjacent plates, and wherein the clamping member sleeve has a gripping member that is capable of applying a radially inward contractive force to the clamping member.
  17. The coaxial connector of claim 16, wherein the clamp member outer surface is provided with two clamp rings at positions opposite to the bite portion, the clamping member being sandwiched between the two clamp rings.
  18. The coaxial connector of claim 16, wherein the material of the outer conductor is brass.
  19. The coaxial connector of claim 16, wherein the clip is integrally formed with the outer conductor.
  20. The coaxial connector of claim 16, wherein a region of the inner surface of the outer conductor adjacent the retainer is provided with an annular groove, and a sealing ring is disposed in the groove.
CN201480082220.1A 2014-09-25 2014-09-25 Coaxial connector assembly and coaxial connector Active CN107078438B (en)

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CN113520225A (en) * 2020-04-17 2021-10-22 广东博智林机器人有限公司 Connecting device, electric side brush assembly and cleaning equipment

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CN201838859U (en) * 2010-11-05 2011-05-18 上海航天科工电器研究院有限公司 Coaxial electric connector for fast locking and separation
CN102842816A (en) * 2012-09-28 2012-12-26 苏州瑞可达连接系统有限公司 Radio frequency coaxial connecting mechanism

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CN201838859U (en) * 2010-11-05 2011-05-18 上海航天科工电器研究院有限公司 Coaxial electric connector for fast locking and separation
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CN110031693A (en) * 2018-01-12 2019-07-19 康普技术有限责任公司 For testing the test fixture and method of the passive intermodulation of coaxial connector
CN113520225A (en) * 2020-04-17 2021-10-22 广东博智林机器人有限公司 Connecting device, electric side brush assembly and cleaning equipment

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