WO2018088714A1

WO2018088714A1 - High frequency connector

Info

Publication number: WO2018088714A1
Application number: PCT/KR2017/011621
Authority: WO
Inventors: 전성원; 최정욱; 김성웅; 김재형
Original assignee: 케이유엠 유한회사
Priority date: 2016-11-11
Filing date: 2017-10-20
Publication date: 2018-05-17
Also published as: KR101800275B1

Abstract

The present invention proposes a high frequency connector capable of checking the correct position of a socket terminal. A housing (110) of the present invention has an accommodation space, formed therein, for allowing a counterpart connector to be inserted therein, and has fixing protrusions (116) formed on both outer side surfaces thereof. In addition, a slider (130) can be coupled by means of an open upper surface so as to encompass the housing, and has a main fixing groove (132a) and a temporary fixing groove (132b) which are elastically coupled to the fixing protrusions such that movement in an axial direction is limited and which are formed adjacently in an axial direction on inner surfaces of both side surfaces thereof. A socket terminal (120) is inserted into the accommodation space of the housing (110) so as to be supported at a predetermined position, and has a front end part through which the counterpart connector is inserted so as to make electrical contact therewith. In the present invention, when the socket terminal is completely inserted into the housing, an extension ring (129) of the socket terminal extends the slider toward both sides by means of an inward protrusion (133) such that the temporary fixing groove can be spaced apart from the fixing protrusion. In the state in which the slider has been extended, the slider moves in an axial direction such that the main fixing groove (132a) is coupled to the fixing protrusion (116) while the slider contracts.

Description

High frequency connector

The present invention relates to a high frequency connector, and more particularly to a high frequency connector that can accurately detect whether the socket terminal is coupled to the home position.

In general, the WAVE (Wireless Access Vehicle Environment) based communication frequency, which is being actively researched and applied to automotive communication systems including telematics, requires a high frequency band of 5.925 GHz. In addition, in order to implement a vehicle WAVE communication system, an antenna, a connector, a communication module, and the like are required, and various researches and commercializations are in progress in the antenna and communication fields. On the other hand, in the field of connectors, since there is no dedicated connector suitable for a high frequency band, a FAKRA (FAKRA, DC to 4GHz) connector used for normal telematics is used.

One example of the prior art for such an RF connector assembly is disclosed in Korean Patent Publication No. 10-1144255 (2012.05.02.). Such a conventional RF connector assembly includes a first connector housing for receiving a terminal assembly of a first coaxial cable, a second connector housing fastened to the first connector housing and for receiving a terminal assembly of a second coaxial cable; And a conductive tubular shield housed in the first connector housing and supporting the terminal assembly of the first coaxial cable. At this time, the conductive tubular shield is provided with a plurality of contact fingers so that the terminal assembly of the first coaxial cable is aligned on the central axis.

Conventional RF connector assemblies have the advantage of seating the terminal assembly in place in the radial direction through the conductive tubular shield, but has the disadvantage of not being able to determine whether the terminal assembly is seated in the longitudinal direction. Therefore, when assembling the connector housing without checking whether the terminal assembly is correctly positioned, not only the connection of the terminal assembly is unstable, but also a problem may occur in the electrical connection.

And as another conventional technology for the high frequency connector, there is a technique proposed by Korean Patent Publication No. 10-1394065. However, even in such a prior art, it can be said that it is practically difficult to accurately confirm the exact position of the terminal.

It is a first object of the present invention to provide a high frequency connector in which a socket terminal or a plug terminal embedded in a connector can ensure its position in the housing.

Another object of the present invention is to provide a high frequency connector in which the socket terminal or the plug terminal can be stably maintained in position in the housing.

Still another object of the present invention is to provide a high frequency connector that can be easily inserted and coupled with a mating connector and at the same time has a firm holding force after insertion.

The high frequency connector assembly according to the present invention for achieving the above object, the housing is formed in the receiving space for the insertion of the mating connector, the housing is formed with fixing projections on both sides; A slider which may be coupled to surround the housing through an open upper surface, and wherein the fixing protrusions are elastically coupled so that the temporary fixing grooves and the fixing grooves are limited in the axial direction to the inner surfaces of both sides; A socket terminal inserted into the accommodation space of the housing to be supported at a predetermined position, and a mating connector inserted into the housing to make electrical contact; And when the socket terminal is completely inserted into the housing, it is composed of expansion means for extending the slider to both sides so that the temporary fixing groove can be spaced apart from the fixing projections. Here, in the state in which the slider is expanded by the expansion means, the slider is moved in the axial direction and is coupled to the fixing protrusion in the fixing groove while the slider is contracted, thereby enabling complete coupling.

According to another embodiment of the present invention, the guide rail is formed on each of the outer both sides of the housing and formed on the inner both sides of the slider is coupled to the guide rail and further comprises a guide groove for guiding the movement of the slider. .

According to another embodiment of the present invention, the windows are respectively formed on both sides of the housing, and the inward projections are respectively formed by extending inwardly from both sides of the front end of the slider to be elastically coupled to the window.

According to the embodiment of the expansion means in the present invention, formed on the rear end of the socket terminal, it is composed of an expansion ring for extending the inward projection to the outside in the state that the socket terminal is completely inserted into the interior of the housing.

According to another embodiment, a plurality of short slits arranged radially and a plurality of long slits arranged between the short slits are formed around the tip of the socket terminal.

According to another embodiment, the cantilever-shaped locking piece having an elastic force formed on the inner bottom of the housing, and the rear end of the socket terminal so that the locking piece is elastically fastened while the socket terminal is completely inserted into the housing. It further comprises a molded lock groove.

In still another embodiment, the auxiliary protrusion for restricting the separation of the locking piece from the locking groove by being located at the bottom of the locking piece in a state in which it is coupled to the fixing protrusion of the slider is further configured.

According to the present invention configured as described above, since the slider can move only when the socket terminal is seated in the correct position, it is possible to easily determine whether the socket terminal is in the correct position. That is, when the socket terminal is fully inserted, the expansion ring expands the slider, so that the engagement with the locking projection can move from the temporary fixing groove to the fixing groove. Therefore, it is expected that the whole assembly can be completed only when the correct position of the socket terminal is confirmed.

The present invention provides a locking protrusion and a locking groove formed in the housing and the socket terminal, respectively, so that the socket terminal can be more firmly fixed in position, and stably fixed by regulating the elastic deformation of the locking piece through the auxiliary protrusion provided on the slider. It can be done. Such a configuration can further secure stability when vibration occurs by supporting the coaxial cable together through a support arm provided in the slider.

In addition, the present invention by placing the short slit and the long slit alternately around the tip of the socket terminal, when the plug connector and the receptacle connector is fastened, it is easy to insert and combine even with a relatively small force, the contact pressure in the state once engaged This is excellent and minimizes the risk of permanent deformation.

1 is a perspective view of a high frequency connector assembly according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of a high frequency connector assembly according to an embodiment of the present invention.

3 is a perspective view of a receptacle connector according to an embodiment of the present invention.

4 is an exploded perspective view of a receptacle connector according to an embodiment of the present invention.

5 is a perspective view of a terminal of a receptacle connector according to an embodiment of the present invention.

6 is a perspective view of a slider of the receptacle connector according to an embodiment of the present invention.

7 and 8 are a cross-sectional view taken along line A-A and B-B of FIG.

9 is a rear view of a receptacle connector according to an embodiment of the present invention.

10 is a perspective view of a plug connector according to an embodiment of the present invention.

FIG. 11 is a cross-sectional view taken along the line C-C in FIG. 10; FIG.

12 is a sectional view taken along the line D-D in FIG. 10;

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

As shown in FIG. 1 and FIG. 2, the high frequency connector assembly of the present invention includes a receptacle connector 100 and a plug connector 200 fastened to the receptacle connector 100. The receptacle connector 100 is a connector having a structure capable of accommodating the plug connector 200 and is also called a female connector. And the plug connector 200 is a connector having a structure that can be inserted into the receptacle connector 100, also referred to as a male (male) connector.

The receptacle connector 100 and the plug connector 200 described above are fastened in a snap manner to be detachable. In order to couple the receptacle connector 100 and the plug connector 200, the receptacle connector 100 is formed of a cantilever-shaped fastening lever 112 that is elastically deformable and has a fastening hole formed therein, and a fastening lever of the plug connector 200. The fastening protrusion 212 which can be assembled to the 112 is molded.

Next, referring to FIGS. 3 to 9, the receptacle connector 100 of the present invention will be described. Receptacle connector 100 of the present invention, the housing 110, the socket terminal 120 is coupled to the interior of the housing 110, and coupled to the outside of the housing 110 is movable in the axial direction within a certain range It consists of a slider 130.

The housing 110 is a tube extending in the coupling direction (axial direction) of the connector (100,200). A first body 110a into which the plug connector 200 is inserted is formed at the front end of the housing 110, and a second body 110b extending from the first body 110a and coupled to the slider 130 at the rear end thereof. ) Is formed. The first accommodating space 111 formed in the first body 110a for inserting the plug connector 200 is assembled such that the tip portion of the socket terminal 120 is positioned.

In addition, a fastening lever 112 for snap fastening with the plug connector 200 is formed at an upper portion of the first accommodating space 111. A cover 113 having a loop shape is provided on the fastening lever 112 so that the fastening lever 112 is not exposed to the outside. In addition, a second accommodation space 114 (see FIG. 7) is formed inside the second body 110b to accommodate the rear end portion of the socket terminal 120, and the socket coupled to the second accommodation space 114. The coaxial cable 140 is connected to the rear end of the terminal 120.

As clearly shown in FIG. 4, the guide rail 115, the fixing protrusion 116, and the window 117 are formed on the side surfaces of the second body 110b, respectively. The guide rail 115 is molded in the axial direction (coupling direction) at the rear end side of the second body 110b to guide the movement of the slider 130. In addition, the fixing protrusion 116 is formed on the middle side of the second body 110b corresponding to the front portion of the guide rail 115 to limit the movement of the slider 130. The window 117 formed at the front portion of the fixing protrusion 116 is for checking whether the socket terminal 120 is correctly positioned at the side of the tip portion of the second body 110b. In this case, the window 117 is formed to penetrate the side portion of the second body 110b so that the expansion ring 129 of the socket terminal 120 and the inward protrusion 133 of the slider 130 can contact each other.

An inner flange 118 (see FIG. 7) is formed between the first body 110a and the second body 110b of the housing 110 of the present invention. The inner flange 118 allows the inside of the housing 110 to be divided into a first accommodation space 111 and a second accommodation space 114, such that the socket terminal 120 is installed inside the housing 110. In contact with the outer surface, so that the socket terminal 120 is supported at a position penetrating it.

On the lower surface of the first body 110a of the housing 110, a locking piece 119 (see FIG. 8) having a cantilever shape that is elastically deformable is molded. A locking protrusion 119a is inserted into the locking groove 128 of the socket terminal 120 at the front end of the locking piece 119. In this case, when the socket terminal 120 is seated at the correct position in the housing 110, the locking protrusion 119a is inserted into the locking groove 128 to fix the socket terminal 120.

In the present invention, the socket terminal 120 is a female terminal into which the plug terminal 220 (FIG. 11) of the plug connector 200 is inserted when the

connectors

100 and 200 are fastened. The socket terminal 120 has a pipe shape extending in the fastening direction (axial direction) of the

connectors

100 and 200. A space 122 for accommodating the plug terminal 220 is formed in the socket terminal 120, and a sleeve 124 for connecting to the coaxial cable 140 is formed at the rear end thereof.

A plurality of slits 126 are formed in the axial direction at the front end of the socket terminal 120. The slit 126 elastically expands the tip of the socket terminal 120 when the plug terminal 220 is inserted, and contracts the tip of the socket terminal 120 after the plug terminal 200 is inserted. do. The slit 126 is composed of a plurality of radially disposed along the periphery of the tip of the socket terminal 120.

For example, as shown in FIG. 5, eight slits 126 are formed at the same interval at the front end of the socket terminal 120. The eight slits 126 are composed of four short slits 126a disposed along the circumference of the socket terminal 120 and four long slits 124b disposed between the short slits 126a. The length of the short slit 126a is formed to be relatively shorter than the length of the long slit 124b.

In the present invention, when the long slit 126b of the socket terminal 120 is inserted into the plug terminal 220, the long end of the socket terminal 120 may be formed to be easily expanded as a whole. The short slit 126a of the socket terminal 120 performs a function of maintaining a firm coupling by relatively more elastically contracting the tip of the socket terminal 120 with respect to the inserted plug terminal 220. By alternately disposing the short slit 126a and the long slit 126b, the plug terminal 220 can be easily inserted into the socket terminal 120 through the long slit, and the socket terminal 120 through the short slit. It is expected that the plug terminal 220 inserted in the FIG. 1 may be firmly maintained. By the alternate arrangement of the long slit and the short sling, it is expected that the tip of the socket terminal 120 can minimize deformation during frequent fastening and detaching of the

connectors

100 and 200.

The rear end of the socket terminal 120 is formed with a concave locking groove 128 along its entire circumference, and an extension ring 129 is convexly formed along its entire circumference at the rear of the locking groove 128. As shown in FIG. 8, when the socket terminal 120 is completely inserted into the housing 110, a locking protrusion 119a is inserted into the locking groove 128 to fix the socket terminal 120. When the socket terminal 120 is completely inserted, the expansion ring 129 contacts the inward protrusion 133 of the slider 130 to expand the tip of the slider 130. The expansion ring 129 is positioned to correspond to the window 117 of the housing 110 and the inward protrusion 133 of the slider 130 when the socket terminal 120 is seated in place.

As can be seen with reference to Figure 6, the slider 130 has a half-pipe shape surrounding the side and bottom of the second body (110b). That is, the upper surface of the slider 130 is open for coupling with the housing 110. And the inner wall of the slider 130 is formed with a guide groove 131 for guiding the movement of the slider 130 with respect to the housing 110, the guide groove 131 and the guide rail 115 of the housing 110 The combination guides the movement of the slider 130.

In addition, fixing

grooves

132a and 132b are formed in the inner wall of the slider 130 in the axial direction. The fixing

grooves

132a and 132b are means for fixing the slider 130 at a predetermined position by inserting the fixing protrusion 116 of the housing 110. That is, the fixing

grooves

132a and 132b include a temporary fixing groove 132b for fixing the slider 130 located in the front and a fixing groove 132a for fixing the slider 130 located in the rear.

In addition, an inward protrusion 133 is formed on an inner wall of the slider 130 of the present invention. The inward protrusion 133 is inserted through the window 117 of the housing 110 to be in contact with the expansion ring 129 when the socket terminal 120 is seated in place. In addition, an auxiliary protrusion 134 is formed at the bottom of the slider 130. The auxiliary protrusion 134 is located at the lower portion of the locking piece 119 when the slider 130 moves forward to regulate the elastic deformation of the locking piece 119 so that the locking protrusion 119a is inserted into the locking groove 128. To prevent deviations.

And the rear end of the slider 130 is provided with a support arm 135 to elastically wrap the coaxial cable 140 connected to the socket terminal 120. The support arm 135 is configured as a pair of clamping both sides of the coaxial cable 140, and has an arc shape to wrap the coaxial cable 140. A support protrusion 136 supporting the coaxial cable 140 is formed inside the support arm 135 (see FIG. 9).

Next, referring to FIGS. 7 and 8, look at the assembly process of the receptacle connector 100 according to the present embodiment. 7 and 8, the socket terminal 120 is temporarily assembled in the housing 110, that is, the preset state, and the socket terminal 120 is shown in FIGS. 7 and 8 (b). This illustrates a state in which the socket terminal 120 is completely assembled to the housing 110.

In the pre-assembled state shown in FIGS. 7 and 8 (a), the socket terminal 120 is assembled to the housing 110 in a sliding manner, and the slider 130 is moved from the bottom to the top using the open top. It is coupled to the housing 110. When the slider 130 is coupled upwardly to the housing 110 in the temporarily assembled state, the fixing protrusion 116 of the housing 110 is inserted into the temporarily fixing groove 132b of the slider 130.

In this state, when the socket terminal 120 moves forward, the expansion ring 129 provided at the rear of the socket terminal 120 contacts the inward protrusion 133 of the slider 130 to open the upper surface of the slider 130. As the distance increases, the slider 130 expands and this state is shown in FIG. In this state, the fixing protrusion 116 of the housing 110 is released from the fastening state with the temporarily fixing groove 132b, and the slider 130 is movable.

Therefore, when the slider 130 is slightly moved forward, the fixing protrusion 116 is fastened to the fixing groove 132a, and the inward protrusion 133 is elastically positioned at the position corresponding to the locking groove 128. Will contract. As shown in FIG. 8B, the locking protrusion 119a formed on the bottom surface of the housing 110 is elastically coupled to the locking groove 128 to thereby connect the socket terminal 120 to the housing 110. The state of tightening is maintained. This state is a state in which the socket terminal 120 is completely fastened to the housing 110 or fully assembled.

As described above, in the state in which the housing 110 and the socket terminal 120 are fully engaged, the auxiliary protrusion 134 formed on the bottom surface of the slider 130 is positioned under the locking piece 119 so that the locking piece 119 may be arbitrarily selected. It is possible to prevent the departure from the locking groove (128). Therefore, in the fully assembled state, even if an external force is applied, the slider 130 does not move in the direction of the arrow in the drawing.

Next, another embodiment shown in FIGS. 10 to 12 will be described. This embodiment may be said that the technical idea of the present invention is implemented in the plug connector 200 fastened to the receptacle connector 100. Hereinafter, the technical configuration of the present embodiment is substantially the same as described above. Therefore, a description overlapping with the above-described embodiment will be briefly described.

The plug connector 200 according to the present embodiment includes a housing 210, a plug terminal 220 coupled to the inside of the housing 210, and a slider 230 installed outside the housing 210 and movable. . Such a configuration of the housing 210, the plug terminal 220, and the slider 230 can be said to have substantially the same configuration as the components described above.

The housing 210 of this embodiment has a tubular shape extending in the fastening direction of the

connectors

100 and 200. The first body 210a into which the plug terminal 220 is inserted is formed at the front end of the housing 210, and the second body 210b to which the slider 230 is coupled is formed at the rear end of the housing 210. A first accommodating space 211 is formed inside the first body 210a, and the socket terminal 220 is inserted into the first accommodating space 211. In addition, the housing 210 corresponding to the upper portion of the first accommodating space 211 is provided with a fastening protrusion 212 assembled to the fastening lever 112.

A second accommodation space 214 is formed inside the second body 210b, and a coaxial cable 240 is installed at the rear end of the plug terminal 220 in the second accommodation space 214. On the side surface of the second body 210b, a guide rail 215 for guiding the movement of the slider 230, a fixing protrusion 216 for limiting the movement of the slider 230, and the plug terminal 220 A slot 217 is formed for checking the position, and these components are the same as the functions of the above-described embodiment.

In addition, an inward protrusion 218 protruded inwardly so as to partition the inside of the housing 210 into the first accommodation space 211 and the second accommodation space 214 between the first body 210a and the second body 210b. Is molded. As in the above-described embodiment, the first accommodation space 211 and the second accommodation space 214 may be said to be connected with a reduced cross-sectional area at the inward protrusion 218. The lower surface of the first body 210a is provided with a cantilever-shaped locking piece 219 which is elastically deformable, and a locking protrusion inserted into the locking groove 228 of the plug terminal 220 at the tip of the locking piece 219. 219a) is formed.

The plug terminal 220 of the present invention is a mail terminal inserted into the socket terminal 120 described above when the

connectors

100 and 200 are fastened. The plug terminal 220 has a pipe shape extending in the fastening direction of the connector. A tapered portion 222 is formed at the front end of the socket terminal 220, and a sleeve 224 for connection with the coaxial cable 240 is formed at the rear end. A locking groove 228 is formed at the rear end of the socket terminal 220, and a pressing ring 229 is formed at the rear of the locking groove 228.

And the slider 230 has a shape consisting of both sides and the lower surface of the upper body is open as described above of the second body (210b), the guide to guide the movement of the slider 230 on the inner wall of the slider 230 A groove 231, a fixing groove 232 for fixing the slider 230 at a specific position, and an inward protrusion 223 contacting the pressing ring 229 are formed. In addition, at the bottom of the slider 230, an auxiliary protrusion 234 for regulating the elastic deformation of the locking piece 219 is formed. Also in this embodiment, a support arm 235 is provided at the rear end of the slider 230 to surround the coaxial cable 240 connected to the plug terminal 220, and to support the coaxial cable 240 inside the support arm 235. The support protrusion 236 is also the same as the first embodiment.

While the present invention has been described through the preferred embodiments, the above-described embodiments are merely illustrative of the technical idea of the present invention, and various changes may be made without departing from the technical idea of the present invention. Those of ordinary skill will understand. Therefore, the protection scope of the present invention should be interpreted not by the specific embodiments, but by the matters described in the claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims

A housing in which an accommodating space for inserting the mating connector is formed and both sides thereof are formed with fixing protrusions;

A slider which may be coupled to surround the housing through an open upper surface, and wherein the fixing protrusions are elastically coupled so that the temporary fixing grooves and the fixing grooves are limited in the axial direction to the inner surfaces of both sides;

A socket terminal inserted into the accommodation space of the housing to be supported at a predetermined position, and a mating connector inserted into the housing to make electrical contact; And

When the socket terminal is completely inserted into the housing, expansion means for extending the slider to both sides so that the temporary fixing groove can be spaced from the fixing projections;

High frequency connector characterized in that the slider is moved in the axial direction in the extended state by the expansion means, the slider is contracted and coupled to the fixing projection to the fixing groove.
The method of claim 1,

And a guide rail formed on each of both outer side surfaces of the housing and guide grooves formed on both inner sides of the slider and coupled to the guide rails to guide the movement of the slider.
The method of claim 1,

And a inward protrusion respectively formed on both sides of the housing and extending inward from both ends of the slider to be inwardly coupled to the window.
The method of claim 3, wherein

The expansion means is formed on the rear end of the socket terminal, the high frequency connector consisting of an expansion ring for extending the inward projection to the outside in the state that the socket terminal is completely inserted into the housing.
The method of claim 1,

A plurality of short slits arranged radially and a plurality of long slits arranged between the short slits are formed around the front end of the socket terminal.
The method of claim 1,

A cantilever-shaped locking piece having an elastic force formed on the inner bottom of the housing, and a locking groove formed at the rear end of the socket terminal so that the locking piece is elastically fastened while the socket terminal is completely inserted into the housing. High frequency connectors, including.
The method of claim 6,

And a sub-projection for restricting the separation of the locking piece from the locking groove by being located at the bottom of the locking piece in a state in which it is coupled to the fixing protrusion of the slider.