JPH054693Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a connector.

[Conventional technology]

A hollow shaft part of an insulating insulator is inserted into a cylindrical shell made of a conductor, and a contact piece member is installed inside the shaft part of the insulator.
A socket-type connector in which the shell is integrally provided with a terminal that also serves as a mounting flange that is screwed onto a wiring board is known from Japanese Utility Model Application Publication No. 42075/1983.

Further, the plate piece has an insulating insulator containing a contact piece member corresponding to a plug-type mating connector, and a mounting frame for mounting the insulator on a wiring board, and the mounting frame is provided with a locking protrusion. A fixed piece in the form of a shape and a terminal in the form of a plate piece are integrally provided, and the fixed piece of the mounting frame is press-fitted into the groove formed in the insulator, and its locking protrusion is bitten into the groove wall surface. A connector in which an insulator is fixed to a mounting frame and terminals of the mounting frame are soldered to circuits on a wiring board is known from Japanese Utility Model Application No. 62-74770.

[Problem that the invention attempts to solve]

However, the former connector described in Japanese Utility Model Application Publication No. 61-42075 has a structure in which the terminal that also serves as the mounting flange protrudes in a direction perpendicular to the axial direction of the cylindrical shell. Because the mounting flange needs to have the required strength, the terminal has to be thicker than the cylindrical shell, and the terminal is integrated with the cylindrical shell and the terminal that also serves as the mounting flange. It is difficult to manufacture it using simple methods such as bending. Further, when the connector described in the publication is mounted on a wiring board, the troublesome work of screwing the terminal which also serves as a mounting flange to the wiring board is required.

On the other hand, in the latter connector described in Japanese Utility Model Application Publication No. 62-74770, the mounting frame and the insulator are mutually connected by press-fitting one plate-shaped fixing piece in the mounting frame into the groove of the insulator. Since the insulator is fixed, when one terminal of the mounting frame is soldered to the wiring board (mounted state), the insulator cannot be attached to the wiring board through only one plate-shaped fixing piece of the mounting frame. It is in an unstable state where it is supported by one leg, and when plugging or removing the plug, the plate-shaped fixing piece easily swings due to the force applied to the insulator. There is a concern that the vibrations may easily be transmitted to the soldered parts of the terminals, making it easier for solder peeling and circuit peeling to occur.

This invention was made in view of the above circumstances, and the purpose of this invention is to firmly fix the shell and insulator by making it possible to attach them to a common mounting frame made of a conductor. Moreover, by devising the shape of the mounting frame, which is integrally equipped with a terminal electrically connected to the shell, the mounting frame can be manufactured by a simple method such as bending. To provide a connector that can be mounted on a wiring board without screwing, and at the same time can be mounted firmly and stably on the wiring board.

[Means for solving problems]

In order to achieve the above object, the connector of this invention has a flange 22 integrally provided at the rear end of a cylindrical terminal 21, and a part of the outer periphery of this flange 22 that protrudes rearward from the flange 22. A cylindrical shell 2 made of a conductor is provided with a protrusion 23 and an annular protrusion 24 is provided on the inner periphery of the flange 22, and a hollow shaft 41 is formed into a rectangular block shape. It has an integral body part 42, an engaging claw 43 is provided on the side surface of the body part 42, and an insertion hole 45 for inserting the contact piece member 5 is formed in the rear surface of the body part 42.
It is formed into a U-shape in plan view by an insulating insulator 4, a front plate part 31, and left and right side plate parts 33, 33.
A mounting frame 3 made of a plate-shaped conductor, in which terminals 36, 36 extend from terminals 3, 33, an opening 32 is opened in a front plate part 31, and an engagement hole 34 is formed in each of side plates 33, 33. The shell 2 includes a front plate portion 3 in the mounting frame 3.
By caulking the protrusion 24 inserted into the opening 32 of 1, it is connected to the front plate part 31, the collar part 22 is brought into contact with the front plate part 31, and the protrusion part 23 is attached to the front plate part 31. The insulator 4 is secured to the outer peripheral end surface 31a of the plate part 31 in the circumferential direction of the shell 2, and the shaft part 41 of the insulator 4 is inserted into the shell 2, and the body part 42 is connected to the mounting frame
The side plate parts 33, 33 are fitted between the left and right side plate parts 33, 33 on the left and right side surfaces of this body part 42.
are overlapped, the engaging claws 43 are fitted and locked into the engaging holes 34 of the left and right side plates 33, 33 of the mounting frame 3, and the contact piece member 5 pushed through the insertion hole is inserted into the shaft. This is installed inside the section 41.

[Effect]

According to this configuration, the shell 2 is attached to the mounting frame 3
By caulking the protrusion 24 inserted into the opening 32 of the front plate part 31, the front plate part 31
Since the shell 2 and the mounting frame are connected to each other, the shell 2 and the mounting frame are firmly connected in a manner that they cannot be separated. In such a strong bonded state, the flange 22 of the shell 2 is brought into contact with the front plate 31 to prevent the shell 2 from wobbling, and the protrusion 23 of the shell 2 is held against the front plate 31. This is further facilitated by the fact that the shell 2 is locked in the circumferential direction by the outer peripheral end surface 31a and rotation of the shell 2 is prevented.

The insulator 4 has a rectangular block-shaped body 42 which is fitted between the left and right side plates 33, 33 of the mounting frame 3.
Since the side plate portions 33, 33 are superimposed on the left and right side surfaces of the mounting frame 3, the body portion 42 is sandwiched between the left and right side plate portions 33, 33 of the mounting frame 3, and the engaging claw 43 of the body portion 42 is attached to the mounting frame 3. The insulator 4 and the mounting frame 3 are fitted and locked into the engagement holes 34 of the left and right side plate parts 33, 33.
are combined.

As described above, the shell 2 and the insulator 4 are integrated by the common mounting frame 3.

Further, since the mounting frame 3 is formed in a U-shape in plan view, the terminals 36 of each side plate portion 33, 33,
36 is not easily deformed or swayed in the mounted state where it is soldered to the wiring board.
Furthermore, as described above, since the body part 42 of the insulator 4 is fitted between the left and right side plate parts 33, 33, the body part 42 prevents deformation and rocking due to the shape of the mounting frame 23 itself. Prevention function is promoted. Furthermore, since the terminals 36 extend from the left and right side plates 33, 33 of the mounting frame 3, in the above-mentioned mounting state, those two terminals 36, 36 (i.e., the two legs (by this), the connector is firmly and stably supported by the wiring board.

〔Example〕

FIG. 1 is an exploded perspective view of a connector according to an embodiment of the invention, and FIG. 2 is a partially cutaway side view of the same connector. This connector 1 includes a shell 2, a mounting frame 3, an insulator 4, and a contact member 5.

The mounting frame 3 is made by punching out a plate-shaped conductor such as a metal plate into a predetermined shape and bending it into a U-shape.A front plate 31 has a circular opening 32, and parallel left and right side plates 33. , 33 are formed with a rectangular engagement hole 34 and a notched engagement recess 35, respectively. Reference numeral 36 denotes a terminal, which in the illustrated example extends integrally from the side plate portion 33.

The shell 2 has a cylindrical terminal 21 and a flange 22 integrally provided therein, and a protrusion 23 that protrudes rearward from the flange 22 at one location on the outer periphery of the flange 22. Annular protrusion 2 on the part
4 is provided, and protrusions 25 are further provided at predetermined locations on the outer periphery of the terminal 21. This shell 2 is made of a conductor such as metal. Then, the protrusion 24 is inserted into the opening 32 of the mounting frame 3, and is joined to the mounting frame 3 by crimping it in a folded state outward as shown in FIG. In this coupled state, the flange 22 is in contact with the front plate 31 of the mounting frame 3 as shown in the figure, and the protrusion 23 is attached to the outer peripheral end surface 31a of the front plate 31 of the shell 2. It is locked without wobbling in the circumferential direction.

When the shell 2 is fixed to the mounting frame 3 in this way, the shell 2 is firmly coupled to the mounting frame in a state where it cannot be separated, and this strong coupling state is such that the flange 22 of the shell 2 is The shell 2 is brought into contact with the front plate part 31 to prevent it from wobbling, and the protruding part 23 of the shell 2 is locked to the outer peripheral end surface 31a of the front plate part 31 in the circumferential direction of the shell 2, thereby preventing the shell 2 from rotating. It is further encouraged by the fact that it is blocked.

The insulator 4 has a hollow shaft portion 41 and a body portion 42 that are integrally molded from an insulating material such as synthetic resin. The body portion 42 has a rectangular block shape, and an engaging pawl 43 is provided on the side surface of the body portion 42.
A dome-shaped bulge 44 is provided on the upper surface. Furthermore, a slit-shaped insertion hole 45 for inserting the contact piece member 5 is formed on the rear surface. Further, as shown in FIG. 2, an annular recess 46 is formed in the front surface of the body portion 42. This insulator 4 has a shaft portion 41 inserted concentrically into the shell 2, and a body portion 42 inserted into the mounting frame 3.
The side plates 33, 33 are fitted between the left and right side plates 33, 33 of the body 42, and the side plates 33, 33 are superimposed on the left and right side surfaces of the body 42, and the engaging claws 43 are inserted between the side plates 33, 33 of the mounting frame 3. The mounting frame 3 is assembled by engaging the engagement hole 34 using elasticity.
can be attached to.

In this way, attach the insulator 4 to the frame 3.
When attached to the bulge 4 as shown in Fig.
4 is butted against the protrusion 23 of the shell 2, and the caulked protrusion 24 of the shell 2 is accommodated inside the recess 46. The insulator 4 has a rectangular block-shaped body 42 that is fitted between the left and right side plates 33, 33 of the mounting frame 3, and the side plate 3 is attached to the left and right sides of the body 42.
3 and 33 are overlapped, the body portion 42 is attached to the left and right side plate portions 33 and 3 of the mounting frame 3.
3, and the engagement claw 43 of the body 42 engages the engagement hole 34 of the left and right side plates 33, 33 of the mounting frame 3.
Since the insulator 4 and the mounting frame 3 are fitted and locked, the insulator 4 and the mounting frame 3 are coupled in a state where wobbling is unlikely to occur.

Further, as shown in FIG. 1, an axial protrusion 26 is formed on the inner surface of the shell 2, and an axial groove 47 is formed on the outer periphery of the shaft portion 41 of the insulator 4.
is formed, and when the shaft portion 41 is inserted into the shell 2 by engaging the concave groove 47 with the protrusion 26,
The shaft portion 41 is reliably aligned with the shell 2 in the circumferential direction. If the outer diameter of the shaft portion 41 is set to a size commensurate with the inner diameter of the shell 2, the two can be accurately arranged concentrically. The contact piece member 5
is pushed through the insertion hole 45 and the shaft portion 41 is inserted into the shaft portion 41.
will be decorated. Note that, as shown in FIGS. 2 and 3, a break terminal 6 is also installed inside the shaft portion 41 along with the contact piece member 5, but these contact piece members 5 and break terminals 6 may be used for other types of connections. It may be replaced with a single member. That is, the illustrated connector is a coaxial connector through which a high-frequency current flows, and when a connecting plug (not shown) is inserted into the shell 2, the connecting state between the contact piece member 5 and the break terminal 6 is released by the connecting plug. However, it is not necessarily limited to this type of connector.

According to the connector described above, even when the connecting plug is inserted into the shell 2 and rotated to engage the notch hole with the protrusion 25, the protrusion 23 is attached to the front plate of the mounting frame 3, as is clear from FIG. Part 3
1, the shell 2 is prevented from rotating together. Then, the shell 2 is coupled to the mounting frame 3 by caulking the protrusion 24, and the insulator 4 is connected to the engagement claw 4.
3 and the engagement hole 34, the mounting frame 3
Therefore, the shell 2 and the insulator 4 are integrated via the common mounting frame 3. Therefore, the mounting frame 3, the shell 2, and the insulator 4 are treated as an integrated unit, and, for example, the printed wiring board P shown in phantom lines in FIG.
It is possible to insert the terminal 36 and the terminal 51 connected from the contact piece member 5 into the terminal hole and solder the connector 1 to the printed wiring board P by itself. There is no problem.

Further, since the mounting frame 3 is formed in a U-shape in plan view, the terminals 36 of each side plate portion 33, 33,
36 is not easily deformed or swayed in the mounted state where it is soldered to the wiring board.
Furthermore, as described above, since the body part 42 of the insulator 4 is fitted between the left and right side plate parts 33, 33, the body part 42 prevents deformation and rocking due to the shape of the mounting frame 23 itself. Prevention function is promoted. Furthermore, since the terminals 36 extend from the left and right side plates 33, 33 of the mounting frame 3, in the above-mentioned mounting state, those two terminals 36, 36 (i.e., the two legs (by this), the connector is firmly and stably supported by the wiring board.

The connector 1 can be attached to the back plate of an electrical device in a one-touch manner by using the engagement recess 35 of the attachment frame 3. That is, as shown in FIG. 6, the mounting plate 3 of the back plate etc.
00, two mounting legs 310 having claw pieces 311 at the tips are provided protrudingly, and by fitting the mounting frame 3 between these mounting legs 310, the claw pieces are inserted into the engagement recess 35. If 311 is engaged, one-touch installation becomes possible. In addition, when attaching in this manner, it is necessary to open a hole 301 in the mounting plate 300 into which the flange 22 of the shell 2 fits.

Note that this invention can be applied to various types of connectors in addition to coaxial connectors.

[Effect of idea]

In the connector of this invention, the shell and insulator are each firmly fixed to a common mounting frame that is U-shaped in plan view and has excellent shape retention. Since the terminals can be soldered to the wiring board, when mounted on the wiring board, the two terminals are firmly and stably supported by the wiring board without screwing. Nevertheless, the above mounting frame
It is formed into a U-shape in plan view by the front plate part and left and right side plate parts, and the terminals extend from each side plate part, so it can be easily bent by performing a simple bending process. can be produced.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a connector according to an embodiment of the invention, Fig. 2 is a partially cutaway side view showing the internal structure of the connector, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 The figure is a partially cutaway side view showing the external appearance of the connector, FIG. 5 is an enlarged sectional view taken along the - line in FIG. 4, and FIG. 6 is a perspective view of the external appearance when the connector is attached to a mounting plate. . DESCRIPTION OF SYMBOLS 1... Connector, 2... Shell, 3... Mounting frame, 4... Insulator, 5... Contact piece member, 21... Terminal, 22... Flange, 23...
...Protrusion, 24... Protrusion, 31... Front plate part, 31
a... Outer peripheral end surface of front plate portion, 32... Opening, 33...
...Side plate part, 34...Engagement hole, 36...Terminal, 41
... Shaft part, 42 ... Body part, 43 ... Engagement claw, 45
...Insertion hole.

Claims (1)

[Claims for Utility Model Registration] The flange 2 is integrally attached to the rear end of the cylindrical terminal 21.
2, a protrusion 23 protruding rearward of the flange 22 is provided at one location on the outer periphery of the flange 22, and an annular protrusion 24 is provided on the inner periphery of the flange 22. , integrally includes a cylindrical shell 2 made of a conductor, a hollow shaft portion 41, and a body portion 42 configured in the shape of a rectangular block, and an engaging claw 43 is provided on the side surface of the body portion 42, An insertion hole 45 for inserting the contact piece member 5 is formed on the rear surface of the portion 42.
It is formed into a U-shape in plan view by an insulating insulator 4, a front plate part 31, and left and right side plate parts 33, 33.
A mounting frame 3 made of a plate-shaped conductor, in which terminals 36, 36 extend from terminals 3, 33, an opening 32 is opened in a front plate part 31, and an engagement hole 34 is formed in each of side plates 33, 33. The shell 2 includes a front plate portion 3 in the mounting frame 3.
By caulking the protrusion 24 inserted into the opening 32 of 1, it is connected to the front plate part 31, the collar part 22 is brought into contact with the front plate part 31, and the protrusion part 23 is attached to the front plate part 31. The insulator 4 is secured to the outer peripheral end surface 31a of the plate portion 31 in the circumferential direction of the shell 2, and the insulator 4 has the shaft portion 41 inserted into the shell 2, and the body portion 42 attached to the mounting frame 3.
The side plate parts 33, 33 are fitted between the left and right side plate parts 33, 33 on the left and right side surfaces of this body part 42.
are overlapped, the engaging claws 43 are fitted and locked into the engaging holes 34 of the left and right side plates 33, 33 of the mounting frame 3, and the contact piece member 5 pushed through the insertion hole 45 is A connector characterized in that it is installed inside a shaft portion 41.