JPH0482182A - Connector - Google Patents

Abstract

PURPOSE:To provide an inexpensive connector in which no bad effect is applied to a condensor even if force is exerted to a terminal from the outside by using a condensor formed by printing and baking processes, on a ceramic substrate. CONSTITUTION:A T-shaped metal contact 21 comprises a linear part composed of a plag 22 and a first terminal 23, and a second terminal 24 bent form the intermediate part vertically. The second terminal 24 is elongated in a specified direction in parallel to a bottom wall 26 to serve as a connection terminal. A ceramic base 28 is fixed in parallel to a bottom wall 26 so that the first terminals 23 penetrate therethrough, on which base 28 a thick film condensor 30 is formed by pinting and baking processes. The ceramic base can be set only by soldering it to the first terminals 23 at the rear of connector and even if a large stress is applied to the terminals, no direct influence thereof is exerted to the condensor.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used in highly sensitive equipment such as communication equipment and automotive electrical equipment, and is used to prevent the intrusion of interference radio waves from the outside and the radiation of unnecessary radio waves generated within the equipment. The present invention relates to a connector device containing a built-in capacitor as a filter for removal.

Conventional technology The conventional technology is shown in Figures 9 (A), (B) to Figure 12 (
A).

This will be explained using the connector device in (B).

In the figure, 1 is a box-shaped insulating housing, and a plurality of linear contacts 5 having a plug part 3 at one end and a terminal part 4 at the other end are implanted through the bottom wall 2 at a constant pitch. A metal plate 7 with small holes 6 is stacked on the outside of the bottom wall 2 so as not to come into contact with the direct contacts, and a filter is further placed between each of the linear contacts 5 and this metal plate 7. An annular capacitor 8 is electrically connected and fixed by soldering its upper and lower surfaces 9 and 10, respectively.

Reference numeral 11 denotes a metal case for shielding the entire connector device, and the metal plate 7 and the metal case 11 are electrically connected by soldering the ends 12 of the metal plate 7.

Further, the terminal portion 4 of each linear contact 5 is bent vertically at a predetermined position to serve as a connection terminal for a printed circuit board of the equipment used.

Problems to be Solved by the Invention However, in the connector device having the above configuration, in order to solder a large number of annular capacitors 8, it is necessary to
On the metal plate 7 with thick solder plating 13 in A) and (B), place the annular capacitor 8 whose upper and lower surfaces 9 and 10 are treated to be solderable as shown in Fig. 10, and then A method is adopted in which a ring-shaped solder 14 is placed on top of the solder plate 13 and the ring-shaped solder 14 is melted and soldered by passing it through a high-temperature container.

However, in the above configuration, in order to connect the capacitor 8 to the shield case 11, the metal plate 7 with thick solder plating and the ring-shaped solder 14 are required, which increases the cost. Requires high temperature conditioner.

In addition, if a large external force is applied to the terminal part 4 and it becomes deformed, or if the deformed terminal is returned to its original state, stress will be applied to the soldering parts 9 and 10 above and below the capacitor at the base of the terminal, and in extreme cases, However, this soldering risked damaging parts 9 and 10 and the capacitor 8 itself.

The present invention solves these conventional problems,
To provide a connector device that uses a small number of parts, allows the soldering of the filter capacitor part using a boat fishing device, reduces assembly costs, and does not affect the capacitor part even if an external force is applied to the terminal part. The purpose is to

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention makes the shape of the contactor T-shaped, divides the terminal part into two parts, extends one terminal part to the rear of the insulating housing, The idea is to attach a ceramic substrate on which a thick film capacitor for a filter is printed.

Therefore, according to the present invention, a thick film capacitor for a filter is formed by printing and firing on a ceramic substrate in advance, so that attachment to the connector is done by attaching this ceramic substrate to the first terminal section at the rear of the connector. All that is required is to combine and solder them together, and even if a large stress is applied to the terminal portion, the capacitor portion will not be directly affected by it.

Embodiment A connector device according to an embodiment of the present invention will be explained with reference to FIGS. 1 to 8.

In the figure, reference numeral 21 denotes a metal T-shaped contact, which, as shown in FIG. 2
4, the plug portions 22 of the plurality of T-shaped contacts 21 are inserted through the bottom wall 26 of the insulating housing 25 vertically from the outside toward the opening 27 at a constant pitch. , a plurality of second terminal portions 24 extend in a certain direction parallel to the bottom wall 26, and serve as connection terminals for connecting the connector device to a mounting device.

A plurality of first terminal portions 23 protruding rearward from the bottom wall 26 of the insulating housing 25 are provided with a ceramic substrate 2.
A thick film capacitor 30 connected between each of the first terminal portions 23 and the common lead-out portion 297 is formed on this ceramic substrate 28 by a printing and firing method. ing.

Here, the configuration of this ceramic substrate 28 is shown in FIG.
), as shown in (B), it has a rectangular shape slightly smaller than the bottom wall 26 of the insulating housing 25, has a convex portion 29A for the common lead-out portion 29 at one end, and has a convex portion 29A for the common lead-out portion 29, and a convex portion 29A for each of the plurality of contacts 21. Through-holes 31 are provided at predetermined positions for passing through the terminal portions 23.The soldering provided around each through-hole is connected to the circular conductor electrodes 32 for each capacitor printed integrally. Each dielectric layer 34 is printed on top of the electrode 33, and each capacitor ground electrode 36, which is integrated with the conductor electrode 35 for soldering the common lead-out portion 29, is printed on top of that, and the thickness is increased by baking. A membrane capacitor 30 is formed.

Note that the dielectric material 34 is sandwiched between the printed electrodes 33 and 36 so as not to short-circuit each other, and the size of the printed electrodes 33 and 36 is set according to the required capacitance.

Also, the printing order of the main electrode 33 for each capacitor and the ground electrode 36 is reversed, as shown in FIG. Of course, it may also be printed.

To attach the T-shaped contact 21 to the ceramic substrate 28, the contact 21 is inserted into a predetermined hole 31 of the ceramic substrate 28.
The tip of the first terminal portion 23 is inserted from the back side of the ceramic substrate 28, and the soldering is performed using the first terminal portion 23 protruding toward the conductor electrode 32 side.
Bend the tips of several of the terminal parts 23 as shown in FIG. 7 to prevent them from coming off, and solder the ceramic substrate 28 to the electrode 32 side using a dip soldering device 39 as shown in FIG. 8. The tips of all the exposed first terminal portions 23 and the ceramic substrate 28 are soldered to the conductive electrode 32.

After this, the insulating housing 25 excluding the opening 27 of the insulating housing 25 and the lead-out portion of the plurality of second terminals 24 is
This connector device is completed by covering the outer periphery of the printed circuit board 28 and the rear part of the ceramic board 28 with a metal shield case 37, and connecting the common lead-out portion 297 of the printed circuit board 28 to this shield case by soldering or the like. It is something.

Effects of the Invention As is clear from the above examples, the present invention has (1)
By printing and firing multiple thick film capacitors for filters in advance on a ceramic substrate and assembling this ceramic substrate to the first terminal of the connector, all filters can be attached at once. .

(2) As mentioned above, the filter capacitor can be easily soldered to the terminal using a general dip soldering device, and (3) the second terminal and the first terminal can be attached to the contact. Since the capacitor is connected to the first terminal, even if a large stress is applied to the second terminal, the effect will not be on the capacitor.

It has the following effects.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the connector device of the present invention, Fig. 2 is a sectional view of the same side, Fig. 3 is a perspective view of a T-shaped contact which is the main part, and Fig. 4 is the main part of the same. This is a ceramic substrate on which a thick film capacitor is formed. (A) is a perspective view, (B) is a side sectional view of the thick film capacitor formed on the ceramic substrate, and FIG. 5 is a perspective view of the same ceramic substrate. , FIG. 6 is a perspective view illustrating the assembled state of the main parts of the insulating housing, T-shaped contact, and ceramic board, and FIG.
Fig. 8 is an explanatory view showing a state in which the connector device assembled to the state shown in Fig. 6 is soldered, and Fig. 9 (
A) is a front partial sectional view of a conventional connector device, and FIG.
B) is a sectional view of the same side, Fig. 10 is an exploded perspective view of the same, Figs. (A
) and (B) are explanatory diagrams showing how the annular capacitor is attached to the connector device. 21... T-shaped contact, 22... Plug part, 23... First terminal part, 24...
Second terminal portion, 25... Insulation housing, 26.
...Bottom wall, 27...Opening, 28...
... Ceramic substrate, 30 ... Thick film capacitor. Name of agent: Patent attorney Shigetaka Awano Haka 1 person, size 3rI! J U] Fear, fear, fear (A) (A) (A) (B)

Claims (4)

[Claims] (1) A contact with a plug part at one end, a first terminal part at the other end, and a second terminal part in between, and the plug part is installed vertically from the outside of the bottom wall toward the opening. A connector consisting of a capacitor formed by printing and firing on a ceramic substrate, together with an insulating housing provided with an insulated housing, the common lead-out part having one end connected to the common lead-out part and the other end electrically fixed to the first terminal part. Device. (2) A plurality of first terminals pass through through holes provided in each of a plurality of soldering electrode parts on a ceramic substrate on which a thick film capacitor is printed, and the tips protrude toward the electrode part side. 2. The connector device according to claim 1, wherein the part and the electrode part are joined by soldering. (3) The connector device according to claim 1 or 2, wherein the soldering joint portion between the soldering electrode portion of the ceramic substrate and the first terminal tip portion is located at the rearmost end of the connector device. (4) The outer periphery of the insulating housing, excluding the insulating housing opening and the second terminal lead-out side, and the rear part of the ceramic board are covered with a metal shield case, and the common lead-out part from the ceramic board is electrically connected to this shield case. 4. A connector device according to claim 1, 2 or 3.