JPH043073B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a receptacle for a coaxial connector.

BACKGROUND ART Conventionally, as a receptacle for a high frequency coaxial connector, one illustrated in FIG. 15 of the accompanying drawings is known. As shown in a half-sectional view in FIG. 15, this conventional coaxial connector receptacle includes a center conductor 1, an insulator 2, an outer conductor 3,
It mainly includes a lug plate 4 for connecting an external conductor and a fixing nut 5. This coaxial connector receptacle is attached to the panel 6 by tightening a fixing nut 5 with the lug plate 4 sandwiched therebetween. The center conductor 8 and outer conductor 9 of the coaxial cable 7 are connected to the center conductor 1 and outer conductor 3 of the receptacle attached to the panel 6 in this way.
To connect the coaxial cable 7, insert the tip of the center conductor 8 of the coaxial cable 7 into the connection slot 1A at the rear end of the center conductor and solder it there. The end of the external conductor 9 was attached and soldered thereto.

Problems to be Solved by the Invention In the conventional coaxial connector receptacle as described above, in order to connect the center conductor and outer conductor of a coaxial cable to it, it is necessary to attach the receptacle to a panel or chassis and then solder it. Because the work was done in narrow spaces or in difficult places due to the presence of electric wires and various parts, assembly and wiring required many man-hours, and various problems often occurred. In other words, during the soldering process, the soldering iron tip may come into contact with the outer sheath of a coaxial cable or other electric wire, or come into contact with a component attached to a panel, chassis, etc., melting the wire sheath or destroying the component. An accident occurs. In addition, wiring insulation failure may occur due to solder dripping, flying, or flux flying due to solder melting.
There was an outbreak of shoots. Furthermore, the solder connection between the receptacle and the coaxial cable is incomplete, causing contact failure (rucon failure) and disconnection accidents. Further, since it is difficult or impossible to remove the soldered portion, maintenance work and the like are difficult.

An object of the present invention is to provide a receptacle for a coaxial connector that eliminates the conventional problems as described above.

Means for Solving the Problems According to the present invention, a receptacle portion includes a center conductor and an outer conductor, which are removably fitted with a mating coaxial connector and are in contact with the center conductor and outer conductor of the mating coaxial connector, respectively. on one side and a multipolar connection section on the other side for connecting the other ends of the center conductor and the outer conductor of the receptacle portion to respective electrical conductors. In the receptacle for
The connecting portion is provided with an insulating block, and the insulating block is provided with a base portion and a pair of locking pieces extending rearward from the base portion at a distance and having a locking protrusion. , the base portion is provided with a center conductor connection terminal electrically connected to the center conductor of the receptacle portion, and at least one outer conductor connection terminal electrically connected to the outer conductor of the receptacle portion. , further comprising an electrical connector plug having an insulating housing having a locking protrusion for engaging with the locking protrusion and locking at a position corresponding to the locking protrusion of each of the locking pieces, the insulating housing In this case, the insulating housing is inserted into and coupled to the insulating block, and
When the respective locking protrusions of the insulating housing and the corresponding locking protrusions of the insulating block are engaged with each other to lock the connection between the insulating blocks and the insulating housing, the center conductor of the insulating block is connected. A center conductor contact and an outer conductor contact are provided, each having a contact portion that comes into contact with the terminal for the center conductor and the outer conductor connection terminal, respectively, and the contact portions of the center conductor contact and the outer conductor contact are provided. The opposite end is adapted to be connected to each of said respective electrical conductors.

Embodiments Next, the present invention will be described in more detail with regard to embodiments of the present invention based on FIGS. 1 to 14 of the accompanying drawings.

1 and 2 schematically illustrate an example of the use of a receptacle for a coaxial connector according to an embodiment of the present invention. The receptacle for a coaxial connector of this embodiment has a receptacle part on one side into which a mating coaxial connector is removably fitted, and a receptacle part for connecting to a corresponding electrical conductor such as a coaxial cable or a printed circuit board. A receptacle body 100 having a connecting portion on the other side, and an insulating block 2 provided at the connecting portion of the receptacle body 100.
00, and a pressure contact type electrical connector plug 300 that can be detachably connected to the insulating block 200.
It is equipped with Figure 1 shows the receptacle body 1.
00 is attached to the panel 10 using a fixing nut 101, and the pressure contact type electrical connector plug 3
A coaxial cable 20 is pressure-connected to 00,
The pressure contact type electrical connector plug 300 is shown separated from the insulating block 200, and FIG. 2 shows the pressure contact type electrical connector plug 300 coupled to the insulating block 200.

Fig. 3 is a side view showing the integrated receptacle main body, insulating block, center conductor connection terminal, and external conductor connection terminal, Fig. 4 is its rear view, and Fig. 5
The figure is a bottom half sectional view of FIG. 3. As clearly shown in the bottom half-sectional view of FIG. 5, the receptacle portion of the receptacle body 100 includes a center conductor 110 that contacts the center conductor of the mating coaxial connector that fits into the receptacle portion, and An insulator 120 to be inserted and an outer conductor shell 1 attached to the insulator 120 and in contact with an outer conductor of a mating coaxial connector that fits into the receptacle part.
30, and a receptacle body 100.
further includes a flange portion 140 made of an insulating material for attachment to the panel 10 integrally molded with the outer conductor shell 130, and a flange portion 140 made of an insulating material or a metal material for gripping the panel that can move freely depending on the thickness of the panel 10. Ring member 150 and spring washer 160
and a fixing nut 1 for screwing into the rear end of the outer conductor shell 130 and tightening the ring member 150 against the panel 10 by releasing the spring washer 160.
01. The reason why the panel gripping ring 150 is made of both insulating material and metal material is to make it replaceable depending on the purpose of use. That is, when the outer conductor shell 130 and the panel 10 are used in an electrically insulated state, the ring 150 is made of an insulating material, and conversely, the ring 150 is made of an insulating material.
When the ring 150 is used in electrical continuity with the ring 150, the ring 150 may be made of a metal material.

The center conductor 110 of the receptacle body 100 is
As clearly shown in the enlarged partially cutaway side view of FIG. 6, in this embodiment, a center conductor connecting terminal 210 is formed at the rear end. This center conductor connection terminal 210 may be formed separately from the center conductor 110 and may be electrically connected to the center conductor 110 later. This central conductor 110 is
Like those in ordinary coaxial connector receptacles, it is made of a springy conductive material such as phosphor bronze, and has a slotted contact that receives the center conductor of the mating coaxial connector at its front end and makes electrical contact with it. It also has a flange 112 having a knurled part for press-fitting and fixing into the hole of the insulator 120 at the intermediate part. In this embodiment, the rear end of the center conductor 110 is further provided with a flange portion 113 for press-fitting and fixing an insulating block 200 as described later.

FIG. 7 is an enlarged side view of the external conductor connection terminal 220 provided on the insulating block 200 and connected to the external conductor shell 130 of the receptacle body 100. This external conductor connection terminal 220 is made of brass, for example, and has a front end portion 221 connected to the external conductor shell 130, and a rear end portion 221, which is connected to the outer conductor shell 130.
This serves as a contact portion 222 that comes into contact with a later-described contact of the pressure-contact type electrical connector plug 300. A cross-shaped protrusion 223 is provided in the middle of the external conductor connection terminal 220 to be press-fitted into a hole in the insulating block 200, as will be described later. This cross-shaped protrusion 223 is best shown in FIG. 8, which is a rear view of FIG. 7.

As clearly shown in FIG. 5, the external conductor connecting terminal 220 is press-fitted into the insulating block 200, and its connecting portion 221 is press-fitted into the connecting hole 131 formed at the rear end of the external conductor shell 130. and is electrically and mechanically connected to the outer conductor shell 130. A punching groove 132 is formed on the outer periphery of the rear end of the outer conductor shell 130, and by punching at this location, the outer conductor shell 130 and the outer conductor connection terminal 220 are connected. Connections can be strengthened.

Next, the structure of the insulating block 200 will be explained in more detail with reference to FIGS. 9 and 10. The insulating block 200 is integrally molded from an insulating material such as polyamide resin, and extends rearward from the base portion 201 and the upper and lower portions of the base portion 201, as best shown in the side view of FIG. It includes locking pieces 202 and 203. As clearly shown in FIG. 10, the base portion 201 of the insulating block 200 has the aforementioned center conductor 110 at its center.
A center conductor connection terminal press-fit hole 204 for press-fitting into the flange portion 113 at the rear end, and this press-fit hole 20
4 are provided with external conductor connection terminal press-fit holes 205 into which the projections 223 of the external conductor connection terminals 220 described above are press-fitted. Furthermore, inside the rear end of the locking piece 202 of the insulating block 200,
A locking protrusion 2 that engages with a locking protrusion provided on an insulating housing of a pressure contact type electrical connector plug to be described later.
06 is provided.

In the insulating block 200 of this embodiment, the external conductor connecting terminal 220 is press-fitted and fixed thereto later.
may be integrally molded together with the external conductor connection terminal 220. Further, when the center conductor connection terminal 210 is provided separately from the center conductor 110, the insulation block 200 may be molded together with the center conductor connection terminal 210.

Finally, the structure of the pressure contact type electrical connector plug 300 will be explained with reference to FIGS. 11, 12, and 13.

FIG. 11 shows a pressure contact type electrical connector plug 300.
An example is shown in a partially cutaway perspective view, showing a state in which the insulating housing and the pressure connection protector are separated. As shown in FIG. 11, this pressure contact type electrical connector 300 includes an insulating housing 310, a contactor 330 disposed in the insulating housing 310, and a contactor 330 disposed in the insulating housing 310.
Pressure connection protector 340 coupled to
It is equipped with The insulating housing 310 is integrally molded from an insulating material such as glass-filled nylon resin, and in this embodiment, three contact array holes 311 are formed in the main body. Also,
A protrusion 3 is provided on the opposing outer wall of the insulating housing 310 to prevent incorrect fitting with the above-mentioned insulating block 200.
12 and 313 are provided on both sides of the insulating housing 310, and grooves 3 are provided on both sides of the insulating housing 310 to receive locking legs 341 of a insulation displacement connection protector 340, which will be described later.
14 are formed on the bottom surface of these grooves 314, and a locking shoulder portion 31 that is engaged with a locking protrusion 342 provided at an end of a locking leg portion 341, which will be described later.
5 is formed. Furthermore, two locking protrusions 316 are formed on one outer wall of the insulating housing 310, as best shown in the plan view of FIG. 12 and the cross-sectional view of FIG. 13.

The contact 330 disposed in the contact arrangement hole 311 of the insulating housing 310 is integrally formed of a conductive material with a spring column, and as clearly shown in the cross-sectional view of FIG. side contact terminal,
That is, the center conductor connection terminal 210 or the outer conductor connection terminal 2 disposed on the insulating block 200
20, and a pressure connection part 332 that connects the electric wire by pressure connection. A pressure contact slit 333 is formed in the pressure contact connection portion 332 .

Similarly to the insulating housing 310, the pressure connection protector 340 is also integrally molded from an insulating material such as glass-filled nylon resin. This protector 340 includes the insulating housing 3
In FIG. 11 of 10, it has a main body part that fits on the outside of the lower end part, and on both sides of this main body part,
Locking legs 341 are provided that are inserted into grooves 314 on both sides of the insulating housing 310. As mentioned above, the locking protrusion 342 is formed at the tip of the locking leg 341.
When the protector 340 is engaged with the locking shoulder 315 of the insulating housing 310, the fitted state of the protector 340 to the insulating housing 310 is locked.
A receiving groove 3 is provided at the bottom of the main body of the protector 340 for receiving the protruding insulation displacement connection part 332 of the contact 330 disposed in the insulating housing 310.
43 is formed. Wire holding members 3 are provided on opposite outer walls of the main body on both sides of these receiving grooves 343.
44 are provided. These wire holding members 34
4 create a wire receiving slot 345 between them, and these wire holding members 344 include:
A stop protrusion 344A is formed that protrudes into the slot 345 to stop the electric wire.

In this embodiment, a contact 330 disposed in a contact arrangement hole 311 in the center of an insulating housing 310
The contact array holes 311 on both sides of the insulating housing 310 contact the center conductor connecting terminal 210 disposed on the insulating block 200 and are connected to the center conductor of the coaxial cable to be connected.
The contactor 330 disposed on the insulating block 20
0, and is connected to the external conductor of the coaxial cable to be connected.

A coaxial cable can be connected to the coaxial connector receptacle having such a configuration as follows.

(1) First, as schematically shown in FIG. 14, the outer sheath 21 at the tip of the coaxial cable 20 to be connected is cut and removed to expose the outer conductor 22, and the exposed outer conductor 22 is connected to the center conductor 24. The outer conductor groups 22A and 22B are separated from the periphery of the dielectric 23 around the outer conductor group 22A and 22B.
Insulated pipes 25A and 25B to 2A and 22B
Attach. As a result, the tip of the coaxial cable 20 has an exposed dielectric portion 23 having the center conductor 24 therein, an insulating pipe 25A having the outer conductor group 22A therein, and an insulating pipe 25B having the outer conductor group 22B therein. It can be divided into

(2) Next, as shown in FIG.
40 (in FIG. 11), the insulated pipe 25A of the coaxial cable 20, which has been terminal-treated as described above, is placed, and the dielectric portion 23 is placed in the central wire receiving slot 345, The insulating pipe 25B is placed in the wire receiving slot 345 on the right side. In this way, when the insulating housing 310 is coupled to the protector 340 in which the terminal processing part of the coaxial cable 20 is arranged, the outer conductor 22A in the insulated pipe 25A and the dielectric part 23 are connected to the insulation displacement connection part 332 of each contactor 330. The inner central conductor 24 and the outer conductor 22B within the insulated pipe 25B are connected by pressure welding, respectively. At this time, the locking protrusion 342 of the locking leg 341 of the protector 340 engages with the locking shoulder 315 of the insulating housing 310, so that the insulating housing 310 and the protector 340 are connected to the coaxial cable 20. The fitting is locked when the tip of the wire is grasped. This state is shown on the left side of FIG.

(3) As shown on the right side of FIG. 1, the pressure contact type electrical connector plug 300 with the end of the coaxial cable 20 connected in this way is connected to an insulating block fixed to the connection part of the receptacle body 100 attached to the panel 10. 200.
At this time, the external conductor connection terminals 220 on both sides and the center conductor connection terminal 210 in the center provided on the insulation block 200 are connected to the contact portions 3 of the contacts 330 on both sides of the insulation displacement type electrical connector plug 300.
31 and the contact portion 331 of the central contact 330
contact each. Therefore, coaxial cable 2
The center conductor 24 of the coaxial cable 20 is connected to the center conductor 110 of the receptacle body 100 via the contact 330 and the center conductor connection terminal 210, and the outer conductors 22A and 22B of the coaxial cable 20 are connected to the contact 330 and the center conductor connection terminal 210. Outer conductor shell 13 of receptacle body 100 via terminal 220
Connected to 0. In this state, the connection between the pressure contact type electrical connector plug 300 and the insulating block 200 is achieved through the locking protrusion 310 provided on the insulation housing 310 of the pressure contact type electrical connector plug 300.
is held by engagement with the locking protrusion 206 of the locking piece 202 of the insulating block 200. This state is shown in FIG.

In the embodiment described above, the electrical connector plug 300 corresponding to the insulating block 200 was of the pressure connection type that connects the outer conductor 22 and the center conductor 24 of the coaxial cable 20 by pressure connection, but the present invention is not limited to this. without electrical connector plug 30
0 may be connected by pressure welding, soldering, or some other connection method.

Effects of the Invention As mentioned above, the receptacle for a coaxial connector of the present invention can connect a coaxial cable by connecting an electrical connector plug to which a coaxial cable has been connected in advance to an insulating block. There is no need for soldering at all during installation, and even in narrow and difficult places, assembly and wiring can be done easily in a short time, and problems such as leakage defects and disconnection accidents do not occur. Further, since the coaxial cable can be easily disconnected by removing the electrical connector plug from the insulating block, maintenance work can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an example of the use of a receptacle for a coaxial connector as an embodiment of the present invention, and FIG. 2 is a diagram similar to FIG. 3 is a schematic diagram showing the combined state; FIG. 3 is a sectional view showing the integrated receptacle body, insulation block, center conductor connection terminal, and external conductor connection terminal of the coaxial connector receptacle of FIG. 1; FIG. 4; is a rear view of Fig. 3, Fig. 5 is a bottom half sectional view of Fig. 3, Fig. 6 is an enlarged partially cutaway side view showing the center conductor of the receptacle body, and Fig. 7 is an enlarged view of the external conductor connection terminal. 8 is a rear view of FIG. 7, FIG. 9 is a side view of the insulating block, FIG. 10 is a front view of FIG.
1 is a partially cutaway perspective view showing an example of the pressure contact type electrical connector plug, FIG. 12 is a plan view of the insulation housing of the pressure contact type electrical connector plug shown in FIG. 11, and FIG.
Figure 3 is a cross-sectional view of the insulating housing in Figure 12;
FIG. 4 is a schematic diagram showing a terminal processing section of a coaxial cable to be connected, and FIG. 15 is a schematic diagram showing an example of use of an example of a conventional coaxial connector receptacle. 10...Panel, 20...Coaxial cable, 21
...Sheath, 22...Outer conductor, 22A, 22B...
...Outer conductor group, 23...Dielectric part, 24...Center conductor, 25A, 25B...Insulating pipe, 100...
... Receptacle body, 110 ... Center conductor, 12
0...Insulator, 130...Outer conductor shell, 20
0... Insulation block, 201... Base, 202...
... Locking piece, 204 ... Terminal press-fit hole for connecting center conductor, 205 ... Terminal press-fit hole for external conductor connection, 20
6... Locking protrusion, 210... Center conductor connection terminal, 220... External conductor connection terminal, 300...
Pressure contact type electrical connector plug, 310...Insulating housing, 311...Contact arrangement hole, 314...
groove, 315...locking shoulder, 316...locking protrusion,
330...Contact element, 331...Contact part, 332...
... Pressure connection section, 340 ... Pressure connection protector, 341 ... Locking leg section, 342 ... Locking protrusion,
Reception groove, 345...Electric wire reception slot.

Claims (1)

[Claims] 1 having a receptacle portion on one side including a center conductor and an outer conductor into which a mating coaxial connector is removably fitted and in contact with the center conductor and outer conductor of the mating coaxial connector, respectively; A receptacle for a coaxial connector of a type having a multipolar connection portion on the other side for connecting the other ends of the center conductor and the outer conductor to the corresponding electric conductors, wherein the connection portion includes an insulating block. The insulating block is provided with a base and a pair of locking pieces extending rearward from the base at a distance and having a locking protrusion. is provided with a center conductor connection terminal that is electrically connected to the center conductor of the receptacle portion, and at least one outer conductor connection terminal that is electrically connected to the outer conductor of the receptacle portion; An electrical connector plug is provided with an insulating housing having a locking protrusion for engaging with the locking protrusion and locking at a position corresponding to the locking protrusion of each of the locking pieces, and the electrical connector plug is provided with an insulating housing. The insulating housing is inserted into and coupled to the insulating block, and each of the locking protrusions of the insulating housing engages with each of the corresponding locking protrusions of the insulating block, thereby insulating them. A center conductor contact and an outer conductor contact are provided, each having a contact portion that comes into contact with the center conductor connecting terminal and the outer conductor connecting terminal of the insulating block when the connection between the block and the insulating housing is locked. and wherein the ends of the center conductor contact and the outer conductor contact opposite to the contact portion are connected to the corresponding electric conductors. Receptacle for connector.