JPH059819Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a high frequency connector which is a terminal to which an antenna for receiving television broadcasting is connected, and which connects a television receiver and an antenna.

[Background Art] In a conventional high frequency connector interposed between this type of antenna and a television receiver, a coaxial cable from the antenna is connected.
Since the outer conductor of the coaxial cable is located on the outside, the connection state can be confirmed visually. However, since the internal conductor, which is the core gland of the coaxial cable, is inserted into the high-frequency connector and connected to the terminal spring placed inside, it is difficult to visually check the connection state between the internal conductor and the terminal spring. There was a problem that it could not be easily confirmed.

[Purpose of the invention] The present invention has been proposed in view of the above-mentioned points, and is a method for visually checking from the outside whether the internal conductor of the coaxial cable is securely connected to the terminal spring arranged inside during construction. The present invention provides a high-frequency connector that can be easily confirmed by the user.

[Disclosure of the invention] The present invention has a connecting terminal part on one side of the connector body for connecting a coaxial cable from one side, and a connecting part to which a plug attached to the tip of the cable from the other side is connected. A connecting terminal portion, which is provided on the other surface of the connector body and to which the coaxial cable is connected, is arranged on a terminal spring to which the internal conductor of the coaxial cable is connected, a terminal case that covers this terminal spring, and one surface of the connector body. The terminal case is made of a transparent material, and the terminal spring is disposed inside the terminal case of the transparent material. The present invention is characterized in that the connection state between the coaxial cable and the internal conductor of the coaxial cable can be visually confirmed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. As shown in FIG. 4, the case 1 that constitutes the outer shell of the connector main body A includes a box-shaped cover 2 with an open rear surface, and a shield plate 3 that closes the rear surface of the cover 2.
It is formed by The cover 2 is integrally molded from an insulating material such as synthetic resin, and is set to have the same dimensions as a standardized ready-made wiring device module. Engagement protrusions 45 are protruded from the rear portions of both left and right sides of the cover 2, and the front edges of the engagement protrusions 45 are recessed in a V-shape. Step portions 46 are formed in the front portions of the left and right sides of the cover 2, and the step portions 46 have coupling recesses 4 that open laterally.
7 is formed. Furthermore, a pair of engaging claw pieces 48 are provided on the left and right edges of the cover 2, respectively. A receptacle 11 is formed in the center of the front surface of the cover 2, which is a connection part to which a plug connected to the end of a cable such as a coaxial cable can be connected. The receptacle 11 is formed in a recess 12 with a circular cross section formed in the center of the front surface of the cover 2. recess 12
A cylindrical support tube 13 that is concentric with the recess 12 is protruded from the bottom surface. An external contact 14 formed by bending a conductive sheet metal is disposed around the support tube 13, and a pair of connection pieces 15 extend from the rear edge of the external contact 14.

The outer conductor of the plug inserted into the receptacle 11 is inserted between the inner circumferential surface of the recess 12 and the outer circumferential surface of the support tube 13 and is pressed against the outer circumferential surface of the external contactor 14. On the other hand, an insertion hole 16 is bored in the center of the front surface of the support tube 13, and the inner conductor of the plug is inserted into the insertion hole 16. An internal contact made of sheet metal bent into a cylindrical shape is housed in the support tube 13, and the inner conductor of the plug is the internal contact 17.
It is inserted into the inner contactor 17 and electrically connected to the inner contactor 17. A connecting piece 18 is integrally provided on the internal contactor 17 in a protruding manner. Each connecting piece 15, 18 of the external contact 14 and the internal contact 17 is connected to a conductive portion of a printed circuit board 19 disposed within the cover 2. Printed circuit board 1 connected to internal contacts 17
The conductive parts 9 are connected to two terminal springs 20 with integral contact spring pieces 21.
Further, the connecting pieces 15 of the external contactor 14 are connected to conductive spring bodies 71 provided at the four corners of the printed circuit board 19 via the conductive portions of the printed circuit board 19 . The conductive spring body 71 has a pair of press-fit pieces 72, and the press-fit pieces 72 are press-fitted into the printed circuit board 19 so that the conductive spring body 71 is mechanically fixed to the printed circuit board 19 and electrically connected to the conductive part. It is becoming more and more common.

Both contact spring pieces 2 having elasticity of each terminal spring 20
1 are in elastic contact with each other by applying a spring force that causes them to approach each other. Both terminal springs 20 are inserted into a pair of cylindrical portions 23 of a terminal case 22 housed within the cover 2, respectively. The terminal case 22 is made of a transparent insulating material such as synthetic resin, and has a pair of rectangular cylindrical portions 23 and a flange piece 24 around the periphery thereof. The conductive shield plate 3 has rectangular frame-shaped engagement frames 31 extending from the center of the left and right edges, and the four corners of the shield plate 3 have positions corresponding to the conductive spring bodies 71 of the printed circuit board 19. A contact piece 32 extends forward. Fifth
As shown in the figure, the engagement protrusion 45 is formed so that the coupling frame 31 is surrounded by the engagement protrusion 45 formed on the cover 2.
By engaging with the engagement frame 31 and caulking so that the front edge of the engagement frame 31 is recessed in accordance with the front edge of the engagement protrusion 45,
The cover 2 and the shield plate 3 are joined together.
Further, as shown in FIG. 6, a conductive spring body 71 comes into elastic contact with the contact piece 32, thereby making the external contact 14, which is the ground side contact of the receptacle 11, and the shield plate 3 conductive. They are electrically connected via the spring body 71.

A notch 33 is formed in the shield plate 3 at a position corresponding to both cylindrical parts 23 of the terminal case 22,
A pair of holding pieces 34 bent rearward are formed on both left and right edges of the notch 33 . A holding groove 35 is formed in the holding piece 34, and a shaft leg 37 extending from a presser fitting 36 is inserted into the holding groove 35.
The pivot leg 37 is bent into an L shape, and the presser metal fitting 3
6 is held with respect to the shield plate 3 so as to be openable and closable. An insertion hole 38 is formed in the holding metal fitting 36, and by screwing the fixing screw 39 into the screw hole 40 of the shield plate 3 through the insertion hole 38 and the ring spring 41, the holding metal fitting 36 is attached to the shield plate 3. It is designed to be fixed. That is, as shown in FIGS. 7 and 8, the connection terminal portion 4 has a terminal spring 20 connected to the internal contact 17 via the printed circuit board 19, and a terminal spring 20 connected to the external contact 14 via the printed circuit board 19. The terminal spring 20 and the presser metal fitting 36 are electrically insulated by the terminal case 22. That is, the terminal case 20 is disposed to cover the entire terminal spring 20, and the insertion hole 28 into which the internal conductor 51 of the coaxial cable 5 is inserted is bored in the rear surface of the terminal case 20. coaxial cable 5
To connect the internal conductor 5 of the coaxial cable 5 to the connection terminal portion 4, with the holding metal fitting 36 open,
1 is inserted between the pair of contact spring pieces 21 through the insertion hole 28 formed in the rear surface of the cylindrical part 23 of the terminal case 22, and then the base of the internal conductor 51 is bent so as to be parallel to the shield plate 3. Then, with the retainer 36 closed and the outer conductor 52 sandwiched between the shield plate 3 and the retainer 36, tighten the fixing screw 39.
It is only necessary to screw them onto the shield plate 3. Here, the holding metal fitting 36 is formed so as to be able to hold two coaxial cables 5 at the same time.

By the way, the contact terminal portion 4 is configured such that a holding metal fitting 36 which can be opened and closed can be temporarily fixed to the shield plate 3 in FIGS. 1 to 3. That is, a shaft leg 37 bent outward is formed at the tip of each side piece 26 of the presser metal fitting 36, and as described above, this shaft leg 37 holds the holding piece 34 integrally formed on the shield plate 3. When inserted into the groove 35, the presser metal fitting 36 can be opened and closed using the pivot leg 34 as a fulcrum. When the presser metal fitting 36 is opened and closed, the side piece 26 of the presser metal fitting 36 is located beside the outer surface of the stepped portion 25 that forms the cylindrical portion 23 of the terminal case 22, and the side piece 26 of the presser metal fitting 36 is positioned beside the outer surface of the stepped portion 25 forming the cylindrical portion 23 of the terminal case 22, and is in contact with the outer surface of this stepped portion 25. A contacting dowel 27 is integrally formed on the inner surface of the side piece 26 of the presser metal fitting 36. Moreover, the position of this dowel 27 is formed at a position on the upper surface of the stepped portion 25 when the presser metal fitting 36 is opened and closed. As shown in FIG. 3, the dimension _S1 between the two dowels 27, 27 is smaller than the dimension _S2 between both side surfaces of the stepped portion 25. Therefore, when the presser metal fitting 36 is closed across the shield plate 3, the presser metal fitting 36 is closed as shown in FIG.
If 6 is opened, dowel 27 of presser metal fitting 36
slides or abuts against the side surface of the stepped portion 25 of the terminal case 22, so that the presser metal fitting 36 can be temporarily fixed at the abutting position. A recess 25a is formed in the side surface of the stepped portion 25, and when the presser metal fitting 36 is opened, the dowel 27 is inserted into the outer side surface 2 of the stepped portion 25.
5b, the presser metal fitting 36 is temporarily fixed.
In addition, when the presser metal fitting 36 is closed, the dowel 2
7 comes into contact with the inner side surface 25c of the stepped portion 25, and the presser metal fitting 36 is temporarily fixed.

Therefore, as shown in FIG.
When opening 6 with the pivot leg 37 as the axis, the dowel 27
comes into contact with the outer side surface 25b of the stepped portion 25, and the presser metal fitting 36 is temporarily fixed in an open state. In this state, the internal conductor 51 of the coaxial cable 5 is inserted through the insertion hole 28 of the cylindrical portion 23 and connected to the terminal spring 20 inside. After connection, the coaxial cable 5 is bent and the presser metal fitting 36 is closed.
6, the dowel 27 comes into contact with the inner side surface 25c of the stepped portion 25, and the presser metal fitting 36 is held in a state slightly floating above the shield plate 3, and the presser metal fitting 3
6 can be temporarily fixed. Therefore, at this position of the presser metal fitting 36, the tip of the fixing screw 39 can be easily aligned with the screw hole 40 of the shield plate 3, and the screw can be easily tightened.

As shown in FIGS. 2 and 4, the shield plate 3
A positioning protrusion 29 is provided on one end surface of the side cover 2.
are integrally formed, and a substantially semicircular recess 30 is formed in this positioning protrusion 29. This recess 3
The coaxial cable 5 is positioned within the space 0 to support the coaxial cable 5 and prevent horizontal vibration. Therefore, this positioning protrusion 2
When positioning the coaxial cable 5 in the recess 30 formed at 9 and screwing the presser metal fitting 36 to the shield plate 3, the coaxial cable 5 is fixed in a fixed position, improving the workability. This also leads to time savings. In addition, the above terminal case 2
2 is made of transparent synthetic resin, the inside of the terminal case 22 can be clearly seen from the side of the terminal case 22, as shown in FIG. The state of connection with the terminal spring 20 can be easily confirmed visually from the outside as shown in FIG. 8, and contact reliability can be improved. Furthermore, a groove-shaped recess 55 is formed in the shield plate 3 on the side of the screw hole 40 in the longitudinal direction. This is to screw the fixing screw 39 into the screw hole 40 to fix the presser metal fitting 36 to the shield plate 3, and the recessed portion 55 increases the tensile strength when tightening the fixing screw 39. It is something. Therefore, the tensile strength is increased by the recessed portion 55, and the shield plate 3 is not deformed by tightening the screws.

As mentioned above, this television terminal is formed to have the same dimensions as one ready-made wiring equipment module, and as shown in FIG. It can be attached to. That is, the mounting frame 60 is a synthetic resin molded product, and the upper and lower mounting pieces 61 each have mounting holes 6 that are long on the left and right.
2 is formed. A box screw for fixing the mounting frame 60 to an embedded box or the like embedded in the wall surface is inserted into the mounting hole 62. Further, a decorative plate is attached to the front surface of the mounting frame 60, and the decorative plate is attached to the screw hole 63 formed in the mounting piece 61.
It is fixed to the mounting frame 60 by a plate screw screwed into the mounting frame 60. The left vertical frame 65 of the mounting frame 60 is formed with a coupling hole (not shown) into which the coupling claw piece 48 formed on the cover 2 engages. Also,
The right vertical frame 66 is formed to have an L-shaped cross section and is open at a position corresponding to the coupling claw piece 48, and a release piece 67 is formed in the opening. An operating protrusion 68 is protruded from the release piece 67, and holding holes 69 are formed on both sides of the operating protrusion 68, respectively. However,
The case 1 can be attached to the attachment frame 60 by inserting the coupling claw pieces 48 provided on the cover 2 into the left and right holding holes 69 of the attachment frame 60. In order to remove the case 1 from the mounting frame 60, the operating protrusion 68 can be pried with the tip of a screwdriver or the like. Note that as the mounting frame 60, a ready-made metal mounting frame having a projecting piece on the inner peripheral edge that can be inserted into the coupling recess 47 can also be used.

[Effects of the invention] As described above, the present invention has a connection terminal section on one side of the connector body for connecting the coaxial cable from one side, and a plug attached to the tip of the cable from the other side is connected. A connecting part is provided on the other surface of the connector main body, and the connecting terminal part to which the coaxial cable is connected is connected to a terminal spring to which the internal conductor of the coaxial cable is connected, a terminal case covering the terminal spring, and a connector main body. It consists of a holding metal fitting that presses the outer conductor of the coaxial cable against the shield plate arranged on one side,
Since the terminal case is made of a transparent material, the connection status between the terminal spring placed inside and the internal conductor of the coaxial cable can be easily confirmed visually through the terminal case made of the transparent material. Therefore, it is possible to improve the contact reliability between the coaxial cable and the terminal spring.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a perspective view showing the connection terminal portion of the above, Fig. 3 is an exploded perspective view of the main parts of the above, and Fig. 4 is the main body of the connector of the same. 5 is a side view of the main parts of the same, FIG. 6 is a sectional view of the main parts of the same, FIG. 7 is a perspective view of the main parts of the same, FIG. 8 is a sectional view of the main parts of the same, and FIG. The figure is a perspective view showing a state in which the connector body same as above is attached to the mounting frame. 3 is a shield plate, 4 is a connecting terminal portion, 5 is a coaxial cable, 20 is a terminal spring, 21 is a contact spring piece, 2
2 is a terminal case, 36 is a holding metal fitting, 51 is an internal conductor, and 52 is an external conductor.

Claims (1)

[Scope of utility model registration request] Having a connection terminal part on one side of the connector body for connecting a coaxial cable from one side, and having a connection part on the other side of the connector body to which a plug attached to the tip of the cable from the other side is connected, The connection terminal part to which the coaxial cable is connected is connected to the terminal spring to which the internal conductor of the coaxial cable is connected, the terminal case that covers this terminal spring, and the shield plate arranged on one side of the connector body. A high-frequency connector comprising a presser metal fitting for pressing an external conductor, and the terminal case is formed of a transparent member.