JPH05234643A - Counter-noise type connector and noise removing parts for counter-noise type connector - Google Patents

Abstract

PURPOSE:To provide a counter-noise type connector and noise removing parts for the counter-noise type connector which can adopt a structure assembling the noise removing parts to the connector even though the connector is made compact, and can have a structure to secure a desired strength to the noise removing parts. CONSTITUTION:In this connector, a block form laminate part 3 for removing noise in which at least either an inductor or a condenser is formed by laminating a conductor 5 and a condenser, combining with a connector housing 2 or metallic terminals 1, commonly to plural metallic terminals of a connector, is provided. And a housing to hold the metallic terminals of the connector is composed of a magnetic ferrite block. The noise removing parts are formed by a coaxial multiple condenser, or by forming inductors and condensers in a multiple form, with laminated parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise countermeasure type connector, and particularly to a connector suitable for application to a small connector such as a connector mounted on a printed wiring board and noise elimination used for the connector. Regarding parts.

[0002]

2. Description of the Related Art A conventional anti-noise connector has a plurality of metal terminals fitted with washer-shaped magnetic ferrite moldings.
Using a through-type porcelain capacitor (through holes corresponding to the number of terminals are provided in the insulating material, the electrodes provided on one side of the insulating material are connected to the metal terminals that penetrate through the through holes, and the other surface of the insulating material is used. Equipped with a ground electrode ... Jitsuko Sho 61-3108
Issue gazette).

Incidentally, with the recent miniaturization of electronic devices, connectors for printed wiring boards are also becoming smaller.
As a result, it is not possible to manufacture a very small size in terms of manufacturing and strength with the noise removal parts using the conventional ferrite molded body and the noise removal parts using the feedthrough capacitor, which causes noise on the connector. It became difficult to attach the removal component, and as a result, the noise removal component was mounted near the connector on the substrate and electrically connected to the connector terminal. For this reason, there is a problem that the noise removing component occupies a predetermined area on the substrate, which hinders miniaturization.

In view of the above problems, the present invention can adopt a structure in which a noise removing component is assembled to the connector even when the connector is miniaturized, and the noise removing component can secure a desired strength. It is an object of the present invention to provide a countermeasure type connector and a noise elimination component for the connector.

[0005]

In order to achieve the above object, the connector of the present invention has a conductor and an insulator in common with a plurality of metal terminals of the connector, in combination with the connector housing or the metal terminals. It is characterized in that a block-shaped noise-removing laminated component in which at least one of an inductor and a capacitor is laminated and formed inside is provided.

Further, in the connector of the present invention, the housing for holding the metal terminal of the connector is constituted by a magnetic ferrite block, and this structure may be combined with the above-mentioned laminated component.

Further, the noise eliminating component for a connector of the present invention is in the form of a block in which a conductor and a dielectric are laminated, and a through hole or a notch is formed near the conductor to penetrate a plurality of metal terminals of the connector. It is characterized in that it is a through-type capacitor made of laminated parts, which is arranged and has a ground terminal connected to the conductor on the outer surface.

The connector noise elimination component of the present invention is a block-shaped component in which at least one of an inductor and a capacitor is formed by laminating a conductor and an insulator, and the connector is provided on the outer surface of the block. The terminals are respectively connected to the plurality of metal terminals, and at least one of the ground terminal and the external circuit connecting terminal is provided on the other portion of the outer surface of the block.

[0009]

The connector, which is a laminated component of the present invention, has a block shape in which a plurality of capacitors or inductors are built in, and high frequency noise components are removed by the action of the built-in inductors or capacitors or both. In the case where the connector housing is composed of a magnetic ferrite block, the metal terminal itself of the connector has a noise removing function.

In the noise elimination component using the feedthrough capacitor which is a laminated component, the high frequency noise component is eliminated by the capacitance component formed between the metal terminal and the conductor of the laminated component.

In the noise removing component formed with at least one of the capacitor and the inductor which are laminated components, the high frequency noise component is removed by the built-in inductor or the capacitor.

[0012]

1A is a perspective view showing an embodiment of a connector according to the present invention, FIG. 1B is a sectional view taken along line EE of FIG.
The same (C) is a FF sectional view of the same (B). Also, FIG.
FIG. 2A is a side sectional view showing a state where a printed wiring board such as a flexible printed wiring is attached to a connector, and FIG. 2C is a book. It is an equivalent circuit schematic of the noise removal circuit of an Example.

The connector of the present embodiment is provided with a plurality of metal terminals 1, a housing 2 made of an electrically insulating resin molding or an insulator such as ceramics, to which the metal terminals 1 are attached, and the connector according to the present invention. It is a through-type capacitor 3 for removing noise, which is a laminated component.

In order to prevent the metal terminal 1 from rotating within the housing 2, a square inner space is formed on the upper and lower inner surfaces of the groove 2.
a and 2b are formed, and the branch portions 1a and 1b of the bifurcated metal terminal 1 are fitted and fixed in these grooves 2a and 2b. The dimensions of the respective portions of the metal terminal 1 and the housing 2 of this embodiment will be described with reference to the reference numerals shown in FIG. 2A. The lateral width a = 17 of the lower branch portion 1b, that is, the portion through which the signal current flows.
0 μm, vertical width b = 270 μm, width c of groove 2b = 240 μm
m, the groove interval d = 260 μm, and the groove depth e = 300 μm.

The feedthrough capacitor 3 is formed, for example, by sequentially stacking a dielectric 4 such as silicon dioxide and an electrode conductor 5 made of silver or the like by a printing method or a sheet method and sintering them, or by sputtering or vapor deposition. After forming a similar block-shaped laminated body, the terminals 6 connected to the conductors 5 are baked on the outer surface of the block, and the holes 3a and 3b penetrating the branch portions 1a and 1b of the metal terminals are formed by laser cutting. It is provided by a beam or the like. Notches may be provided instead of the through holes 3a and 3b.

This connector is combined with the through-type capacitor 3 in the housing 2 by bonding with an adhesive 7 or by a fitting structure, and penetrates the branch portions 1a, 1b of the metal terminal 1 through the holes 3a, 3b of the through-type capacitor 3. Then, they are joined by being fitted into the grooves 2a and 2b of the housing 2.

This connector is a surface mount type connector, and as shown in FIG. 2 (B), the portion 1c of the metal terminal 1 protruding from the housing 2 is soldered (11) to the conductor on the board 10 to form the housing 2 The other end 2c is brought into contact with the substrate 10 and the terminal 6 of the feedthrough capacitor 3 is soldered to the ground conductor on the substrate 10. A ground conductor is formed on the board contact surface of the end portion 2c of the housing 2 and the conductor is soldered to the ground conductor on the board 10. The terminal 6 of the feedthrough capacitor 3 is the housing 2
You may make it connect to the said ground conductor of the outer surface.

As shown in FIG. 2 (B), this connector has a printed wiring board 8 (for example, a flexible resin sheet 8a as shown in the drawing) in the inner space of the housing 2 in the same number as the metal terminals 1. A flexible printed wiring board having conductors 8b fixed thereto is inserted at intervals, and a stopper 9 is pushed between the printed wiring board 8 and the top plate portion of the housing 2 as indicated by an arrow X, so that the conductor of the printed wiring board 8 is formed. 8b is pressed against the branch portion 1b of the metal terminal 1 by utilizing the elasticity of the branch portion 1b to be electrically connected.

In this connector, as shown in FIG. 2 (C), due to the capacitive component formed between the metal terminal 1 and the conductor 5 of the feedthrough capacitor 3, high frequency noise in a signal passing through the metal terminal 1 is generated. The component is removed.

As described above, since the block-shaped laminated component is used as the noise elimination component and is commonly assembled to the plurality of metal terminals, the required strength can be easily obtained, and the noise elimination component is integrated with the connector. As a result, the space on the substrate 10 is not occupied by only the noise removal component, and the space can be saved.

FIG. 3A is a perspective view showing another embodiment of the connector according to the present invention, FIG. 3B is a sectional view taken along line H-H of FIG. 3A, and FIG. It is a circuit diagram. In this embodiment, a magnetic or non-magnetic insulator 1
The inductor 2 corresponding to the metal terminal 1A is formed by stacking 2 and the coil conductor 13 in the same manner as in the above embodiment. In addition, terminals 14 and 1 are provided on both ends of each coil conductor 13.
5 is provided by baking or the like. The metal terminal 1A is assembled by inserting the upper and lower branch portions 1a and 1b into the holes 2e and 2f of the housing 2A and fitting them into the grooves 1a and 1b. And
The terminal 14 is attached to the metal terminal 1A by soldering or pressure welding.
And the terminal 15 is soldered (11) to the conductor on the substrate 10.

As shown in FIG. 3C, this noise elimination component has a circuit configuration in which a component 16 as a high frequency noise elimination inductor is inserted for each metal terminal 1A. According to this embodiment, the same effect as that of the above embodiment can be obtained.

FIG. 4A is a perspective view showing another embodiment of the present invention, FIG. 4B is a sectional view taken along the line I--I of FIG. 4A, and FIG. 4C is an equivalent circuit diagram of the noise removing component. Is. In this embodiment, two inductors 16 each consisting of an insulator 12 and a coil conductor 13 are formed corresponding to each metal terminal 1A by the same method as in the above embodiment. Also, this inductor 1
A capacitor 17 composed of a dielectric 4 and an electrode conductor 5 is laminated in the same manner as described above by a method similar to that described above, and a through hole 18 (which may be connected on the outer surface of this component) is provided between the two inductors 16. Is connected to one of the conductors 5 forming the capacitor 17 to form the circuit of FIG. 4C for each metal terminal 1A. In addition, in the drawing, a terminal 14 that is connected to the metal terminal 1A assembled to the housing 2A by soldering, pressure welding, or the like is provided at an upper portion in the drawing, and a lower portion is soldered to the board-side conductor 19 or an external circuit. The terminal 15 and the ground terminal 21 to be soldered to the ground 20 are formed by baking or the like.

The noise-removing laminated component of this embodiment is a combination of the inductor 16 and the capacitor 17, but one in which only one of them is formed, or a connecting structure of the inductor 16 and the capacitor 17 is changed. Etc., the circuit configuration can be arbitrarily selected according to the application.

FIG. 5 shows another embodiment of the present invention. In this embodiment, a magnetic ferrite block is used as the housing 2B. According to this embodiment, the inductance is increased by the electromagnetic induction action of the current flowing through the branch 1b of the metal terminal 1 and the housing 2B made of a magnetic material, and the terminal 1 itself can be used as a noise elimination inductor. As described above, the use of magnetic ferrite in the housing 2B can be realized as a structure in which a noise removing component such as the feedthrough capacitor 3 is not assembled, or may be combined with the structure shown in FIG. 3 or 4.

[0026]

According to the first aspect of the present invention, a block-shaped laminated component is used as the noise elimination component, and the laminated component is commonly assembled to a plurality of metal terminals of the connector. Since it is a laminated component in which multiple elements are integrated, the required strength can be easily ensured, and a component suitable for use in a small connector such as a surface mount connector can be provided. In addition, since the noise removing component is integrally assembled with the connector, the connector is made compact, and the space on the substrate for the noise removing component is extremely narrowed, which contributes to downsizing of electronic equipment using the connector.

According to the second aspect, the metal terminal itself can be used as a high frequency noise removing inductor, the space occupied by the noise removing component is eliminated, and the connector is further miniaturized.

According to the third aspect of the present invention, good noise eliminating characteristics can be obtained by the synergistic action of the housing made of magnetic ferrite and the noise eliminating component.

According to the fourth and fifth aspects of the present invention, it is possible to realize a noise removing component which is smaller than the conventional one and has strength and characteristics that can be assembled in a small connector.

[Brief description of drawings]

1A is a perspective view showing an embodiment of a connector according to the present invention, FIG. 1B is a sectional view taken along line EE of FIG. 1A, and FIG. 1C is a sectional view taken along line FF of FIG. ..

2A is a view taken in the direction of arrow G in FIG. 1B, FIG. 2B is a side sectional view showing a state in which a flexible printed wiring board is attached to a connector, and FIG. 2C is a noise of this embodiment. It is an equivalent circuit diagram of a removal circuit.

3A is a perspective view showing another embodiment of the connector according to the present invention, FIG. 3B is a sectional view taken along line HH of FIG. 3A, and FIG. 3C is an equivalent circuit diagram of the noise removing component. ..

4A is a perspective view showing another embodiment of the connector according to the present invention, FIG. 4B is a sectional view taken along line I-I of FIG. 4A, and FIG. 4C is an equivalent circuit diagram of the noise elimination component. ..

FIG. 5 is a sectional view showing another embodiment of the connector according to the present invention.

[Explanation of symbols]

 1, 1A Metal Terminal 2, 2A Housing 2B Magnetic Ferrite Housing 3 Through-type Capacitor 4 Dielectric 5 Electrode Conductor 6, 14, 15, 21 21 Terminal 7 Adhesive 8 Printed Wiring Board 9 Stopper 10 Board 11 Solder 12 Insulator 13 Coil conductor 16 Inductor 17 Capacitor 18 Through hole 19 Conductor 20 Ground

Claims (5)

[Claims] 1. A block shape in which at least one of an inductor and a capacitor is formed inside by laminating a conductor and an insulator in common with a plurality of metal terminals of a connector in combination with the connector housing or the metal terminal. A noise countermeasure type connector, which is provided with the noise removing laminated component. 2. A noise countermeasure type connector characterized in that a housing for holding a metal terminal of the connector is constituted by a magnetic ferrite block. 3. A noise countermeasure type connector according to claim 1, wherein the connector housing is made of a magnetic ferrite block. 4. A noise elimination component combined with a connector, which is in the form of a block in which a conductor and a dielectric are laminated,
In addition, a through hole capacitor or a notch is formed in the vicinity of the conductor, the through hole or notch penetrating each of the plurality of metal terminals of the connector, and the through-type capacitor made of a laminated component has a ground terminal connected to the conductor on the outer surface. Noise removal parts for connectors. 5. A noise elimination component to be combined with a connector, which is a block-shaped product in which at least one of an inductor and a capacitor is formed by laminating a conductor and an insulator, and the connector is provided on the outer surface of the block. A terminal for connecting to each of the plurality of metal terminals, and at least one of a ground terminal and an external circuit connecting terminal is provided on the other part of the outer surface of the block. parts.