JPH11111391A - Shield cable with connector, electronic apparatus, connector member and connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shield cable with a connector that permits a small connector to be attached to the end of the shield cable, without forming a pigtail and has good shielding characteristic. SOLUTION: A shield cable 8 is composed by covering multiple cable conductors 1 with a braided wire shield 2 and covering the outside of the braided wire shield 2 with a insulating sheath 3. A conducting film connected electrically to a connector terminal 7 is formed on the entire surface of a structure member 6. Each cable conductor 1 is connected to a connector terminal 5 corresponding to the cable conductor 1 electrically, and the peripheral surface of a molded member 4 is covered by an end of the braided wire shield 2. Thus, the cable conductors 1 are shielded completely. In addition, the conducting film of the structural member 6 and the braided wire shield 2 are connected electrically by covering the peripheral surface of the molded member 4 by the structure member 6. The braided wire shield 2 is connected to the ground of a board via the conductive film of the structure member 6 and the connector terminal 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EMI (Electromagnetic Interference Noise) standard,
The present invention relates to a shielded cable with a connector, an electronic device, a connector member, and a connector that reduce radiation noise.

[0002]

2. Description of the Related Art Conventionally, when electric signals are mutually transmitted between electronic devices, in order to reduce radiated noise and to prevent the influence of noise from the outside of the electronic device to the inside of the electronic device, As a means for electrically connecting electronic devices, a shielded cable (hereinafter, also referred to as a shielded cable) is used. For example, in a shielded cable as an interface cable for connecting a personal computer and a printer, a shielded conductor of the shielded cable is pressed into a metal hood constituting a connector attached to an end of the shielded cable by a method such as screwing. And is electrically connected to the metal hood.

As a method of electrically connecting an electronic device and an interface cable, a connector that fits with a connector of the interface cable is attached to the electronic device, and the interface cable and the connector of the electronic device are connected by fitting. . The metal shell that constitutes the connector attached to the electronic device is connected to the metal housing of the electronic device by a method such as screwing, and the shield conductor of the interface cable is connected via the metal hood of the connector of the interface cable. And is electrically connected to the housing of the electronic device and is stabilized as ground. Thereby, a high shielding effect of the interface cable can be obtained.

On the other hand, when a plurality of boards exist in an electronic device, a cable is used to transmit an electric signal between the boards. In this case, a bundled cable without shield, a flat cable, a flexible wiring board, or the like is often used as the cable.

When using a bundled wire with a shield, the end of the shield is soldered to the ground of the board, or the end of the shield is mechanically screwed to the ground of the board or a metal housing. Connecting. As for the structure of the connector when a flexible flat cable with a shield is used, a flat cable and a connector for a flat cable as disclosed in Japanese Patent Publication No. 7-52607 can be cited.

FIG. 9 is a view for explaining a conventional shielded cable with a connector. FIG. 9 (a)
FIG. 9B is a perspective view showing a state before assembling the shielded cable with connector, and FIG. 9B is a side view showing a state after assembling the shielded cable with connector shown in FIG. 9A.

In a conventional shielded cable with a connector, as shown in FIG. 9A, a plurality of core wires 101 covered with an insulating material are bundled.
1 is covered with a braided wire shield 102. The outside of the braided wire shield 102 is further covered with an insulating sheath 103 to form a shielded cable 108.

At the end of the shielded cable 108, a mold member 104 constituting a connector is attached.
A plurality of connector terminals 105 corresponding to the respective core wires 101 of the shielded cable 108 are formed on the mold member 104.

As shown in FIG. 9B, one end of a metal wire 117 is attached to an end of the braided wire shield 102 on the connector side by a caulking fitting 116. A screw fitting 118 for screwing the other end of the metal wire 117 to a substrate or the like is attached to the other end of the metal wire 117.

[0010] Further, since the mold member 104 is connected to the ends of the plurality of core wires 101, the shield cable 10
8 is provided with a mold member 104 as a connector. Each core 101 is a respective core 1
01 is electrically connected to the connector terminal 105 corresponding to the “01”.

FIG. 10 is a diagram for explaining the relationship between the shielded cable with connector described with reference to FIG. 9 and a printed circuit board in an electronic device to which the shielded cable with connector is connected.

[0012] As shown in FIG.
A connector 110 to be connected to the printed circuit board 04 is mounted on the printed wiring board 112 by soldering. Inside the connector 110, a plurality of pins 111 corresponding to the respective connector terminals 105 of the mold member 104 are provided. The printed wiring board 112 is attached by screws 115 to a support 114 formed by processing a metal housing 113.

The pins 111 of the connector 110 are soldered to signal lines and signal ground patterns on the surface of the printed wiring board 112. Mold member 104 is connector 1
10, the respective connector terminals 105 are electrically connected to the pins 111 corresponding to the respective connector terminals 105, so that signals are transmitted through the connector terminals 105 and the pins 111.

On the other hand, a screw fitting 118 at the end of the metal wire 117 is screwed by a screw 115 to a printed wiring board 112.
, So that the metal wire 117
Are electrically connected to the frame ground.

A metal wire 1 attached to electrically connect a conductor of a braided wire shield 102 that shields a core wire 101 with a shielded cable 108 to a ground.
17 is called a pigtail. When the core wire 101 is exposed near the mold member 104 and the braided wire shield 102 is grounded by a pigtail,
Radiated noise increases sharply.

FIG. 11 is a sectional view showing a conventional connector. As a conventional connector, as shown in FIG. 11, a male connector 152 as a first connector and a female connector 151 as a second connector are used. In the male connector 152, one end of a cable 143 is connected to the male connector housing 145. A male connector pin 147 is formed inside the male connector housing 145, and the male connector pin 1
47 is electrically connected to the conductor inside the cable 143. The male connector pins 147 protrude from the surface of the male connector housing 145 opposite to the side to which the cable 143 is connected.

On the other hand, in the female connector 151, the board mounting lead 148 is attached to the female connector housing 144.
Of the female connector housing 144
A hole for inserting the male connector pin 147 is formed on the surface opposite to the side to which the board mounting lead 148 is connected. A female connector pin 146 is formed inside the female connector housing 144. The female connector pin 146 is connected to the board mounting lead 148.
Is electrically connected to

A ferrite bead 140 is attached to the substrate attachment lead 148. After the other end of the board mounting lead 148 passes through a hole formed in the printed board 142, the other end of the board mounting lead 148 is bonded to the back surface of the printed board 142 with solder 149.

By inserting the male connector pin 147 of the male connector 152 into the hole of the female connector 151 and connecting the male connector 152 and the female connector 151, the male connector pin 147 and the female connector 151 are connected. The pin 146 contacts and is electrically connected.

[0020]

However, as a connector attached to the end of an interface cable for electrically connecting electronic devices as described above, it is necessary to ground the shield part of the interface cable. It becomes large. Therefore, in order to electrically connect the substrates inside the electronic devices that are required to be smaller and lighter in recent years, there is a problem that an interface cable provided with a large connector cannot be used in many cases. . Also, if the interface cable is forcibly used, in order to join the metal shell of the connector of the interface cable to the metal housing in the electronic device, the space is narrow and it is difficult to process the metal housing. Usually, it is often impossible.

Therefore, when the boards are electrically connected to each other using the shielded cable in the electronic device, the shielded portion at the end of the shielded cable is soldered to the board, or as described with reference to FIG. Screw it. However, there is a problem that the operation is complicated and the pigtail becomes large in the shield ground portion of the shielded cable, so that the shielding effect is greatly deteriorated. In order to improve the workability for connecting the ground of the board and the shield ground portion of the shielded cable, a metal wire called a drain wire is arranged, and this metal wire is connected to the terminal of the connector. There is a method of connecting a board ground and a shield ground via a terminal of a connector. However, in this method, there is a problem that the drain effect is reduced because the drain line is thinner and longer to some extent.

If the flat cable and the flat cable connector disclosed in Japanese Patent Publication No. 7-52607 are used, a considerable shielding effect can be expected. However, since a flat cable is difficult to bend freely and has a complicated structure in an electronic device, the flat cable cannot be used in the electronic device in many cases in order to electrically connect the substrates.

Further, in the conventional connector shown in FIG.
When the female connector 151 is mounted on the printed circuit board 142 without being mounted on the printed circuit board 8, the ferrite beads 140 are mounted after the female connector 151 is mounted since the board mounting leads 148 are firmly mounted on the printed circuit board 142 by the solder 149. There is a problem that it is difficult to attach. In this case, the ferrite beads 14
When the solder is melted again to attach the “0” to the board attachment lead 148, the printed board 142 is heated and the printed board 142 is damaged.

Furthermore, in such a conventional connector,
In order to compare and study the effect of the ferrite beads 140 when the ferrite beads 140 are attached and when the ferrite beads 140 are not attached, it is necessary to prepare a plurality of printed boards. In this case, the effect of the ferrite bead must be examined using a printed circuit board on which the connector is mounted by attaching the ferrite bead to the board mounting lead and a printed circuit board on which the connector is mounted without attaching the ferrite bead.

An object of the present invention is to provide a shielded cable with a connector in which a small connector is attached to the end of the shielded cable and which has good shielding characteristics, and a shielded cable with the connector, in view of the above-mentioned problems of the prior art. Electronic devices.

Another object of the present invention is to provide a connector mounted on a board together with a ferrite used to reduce radiated noise, and to remove the connector from the board in order to compare and examine the effect of the ferrite. It is an object of the present invention to provide a connector member and a connector in which ferrite can be easily removed and mounted without using the same.

[0027]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a shielded cable having a plurality of cores, a conductive shield member covering the plurality of cores, and a cable attached to an end of the shielded cable. A shielded cable with a connector provided with a connector, wherein the connector has an insulating property in which a plurality of first connector terminals to each of which a plurality of core wires of the shielded cable are electrically connected correspondingly are formed. It is characterized by comprising a support member and a structural member that covers a peripheral surface of the support member and has a second connector terminal formed thereon that is electrically connected to the shield member of the shielded cable.

In the above invention, when the connector attached to the end of the shielded cable is connected to another connector different from the connector, the first connector terminal of the support member and the second connector of the structural member are connected. By electrically connecting the terminal to the connector terminal of another connector, the shield member of the shielded cable can be easily electrically connected to, for example, the ground portion of the board via the second connector terminal. Further, since it is not necessary to form a pigtail at the end of the shielded cable to connect the shield member of the shielded cable to the ground portion of the board, the connection between the shield member and the ground of the board is simplified.

Preferably, a conductive film is formed on the entire surface of the structural member by plating or painting. Since the conductive film is formed on the entire surface of the structural member, the second connector terminal of the structural member is electrically connected to the shield member of the shielded cable via the conductive film of the structural member. be able to.

Further, the connector-side end of the shield member of the shielded cable covers the peripheral surface of the support member and is sandwiched between the support member and the structural member, whereby the shield member of the shield cable is provided. And a second connector terminal of the structural member is preferably electrically connected via a conductive film of the structural member.

As described above, the connector-side end of the shield member of the shielded cable is sandwiched between the support member and the structural member, so that the connector-side end of the shield member becomes the conductive film of the structural member. And is electrically connected. Thereby, the shield member and the second connector terminal are electrically connected via the conductive film of the structural member. Further, since the end of the shield member on the connector side covers the peripheral surface of the support member, the core wire of the shielded cable is completely shielded.

Further, the shield member of the shield cable is attached to an outer periphery of an end portion on the connector side of the shield member so that a core wire of the shield cable passes through a hole of a metal ring. By being in contact with the conductive film of the structural member, the shield member of the shielded cable and the second connector are electrically connected via the ring and the conductive film of the structural member. Is preferred.

As described above, the metal ring is attached to the outer periphery of the connector-side end of the shield member of the shielded cable, and the ring is brought into contact with the conductive film of the structural member, thereby making the ring conductive. The shield member and the second connector are electrically connected to each other through the ring and the conductive film.

Further, a concave portion is formed on a connection surface of the connector for connecting to another connector different from the connector, the concave portion being filled with a gel-like substance containing ferrite when connecting the connectors. At the bottom of the first
Are preferably formed.

As described above, when the connector at the end of the shielded cable is formed with the recess filled with the gel-like substance containing ferrite, the connector is connected to another connector different from the connector. By filling the concave portion of the connector with a gel-like substance, the ferrite can be mounted on the connector at the end of the shielded cable. Further, it is easy to remove the gel-like substance filled in the concave portion of the connector, and when the gel-like substance containing ferrite is mounted on the connector at the end of the shielded cable, and when the gel-like substance is not mounted. Can be simply compared.

[0036] Further, it is preferable that the second connector terminal is further formed at the bottom of the concave portion of the connector attached to the end of the shielded cable.

Further, the present invention is characterized in that electrical connection is made inside an electronic device using the above-described shielded cable with connector. Thus, an electronic device in which the generation of radiation noise is reduced is realized.

The present invention further provides a first connector having a recess formed on one surface and a plurality of connector pins projecting from the bottom of the recess, and a plurality of connector pins of the first connector formed on one surface. When connecting the second connector on which a plurality of corresponding connector pins are formed with the concave-side surface of the first connector and the connector-pin-side surface of the second connector facing each other, A gel material containing ferrite is used as a connector member to be filled in the recess of the first connector.

According to the above invention, when the first connector and the second connector are connected, the recess of the first connector is
By filling the gel-like substance mixed with ferrite, the connector pins of the first connector are wrapped by the ferrite, and radiation noise is reduced. Further, it is easy to remove the gel-like substance filled in the concave portion of the first connector, and easily compare the ferrite shielding effect between the case where the gel-like substance is filled in the concave portion and the case where it is not filled. Can be considered.

Further, it is preferable that the gel-like substance is cured after being filled in the concave portion of the first connector. In this case, the first connector and the second connector are firmly connected, and a highly reliable connection can be obtained.

Further, it is preferable that the gel-like substance has releasability. In this case, the gel substance filled in the concave portion of the first connector can be easily removed from the concave portion.

The present invention further provides a plurality of connector pins,
A connector housing having a plurality of connector pins formed therein, a recess for filling a gel-like substance containing ferrite is formed on one surface of the connector housing, and the plurality of connector pins are formed from a bottom of the recess. The connector pins are protruded.

In the above invention, when a connector having a concave portion formed on one surface is connected, the concave portion of the connector housing is
By filling the gel-like substance mixed with ferrite, a plurality of connector pins of the connector are wrapped by the ferrite, and radiation noise is reduced. Also,
It is easy to remove the gel-like substance filled in the concave part of the connector housing, and it is possible to easily compare the ferrite shielding effect between the case where the gel-like substance is filled in the concave part and the case where it is not filled. it can.

Further, it is preferable that a hole for injecting the gel-like substance, which penetrates from the outside of the connector housing to the concave portion, is formed on a surface of the connector housing where the concave portion is not formed. .

As described above, since the injection hole is formed in the connector housing, the connector-connected concave portion of the connector housing is filled with the gel-like substance containing ferrite through the injection hole. Can be.

Further, a hole for venting air from the outside of the connector housing to the concave portion is formed on the surface of the connector housing where the concave portion is not formed and at a position different from the injection hole. It is preferred that

As described above, since the hole for venting air is formed in the connector housing, when the gel-like substance is filled into the recess of the connector housing through the hole for injection while the connector is connected, the inside of the recess is formed. Air is exhausted from the vent holes. Therefore, it is possible to prevent the gel-like substance from flowing backward due to the pressure at the time of injecting the gel-like substance from the injection hole.

Preferably, a partition is formed in the recess of the connector housing for each connector terminal projecting from the bottom of the recess.

As described above, since the partition is formed in the concave portion of the connector housing, it is possible to fill each connector terminal with a gel-like substance mixed with ferrite. In addition, since the concave portion of the connector housing is divided into a plurality of spaces for each connector terminal by a partition, by filling a specific space of the concave portion with a gel-like substance, the signal line of any connector pin is closely related to noise. It is possible to easily compare and examine whether or not they are doing.

[0050]

Next, embodiments of the present invention will be described with reference to the drawings.

(First Embodiment) FIG. 1 is a view for explaining a shielded cable with a connector according to a first embodiment of the present invention. FIG. 1A is a perspective view showing a state before assembling the shielded cable with a connector of the present embodiment, and FIG. 1B is a view showing a state during the assembly of the shielded cable with a connector shown in FIG. It is a side view showing a state. And FIG. 1 (c) is the same as FIG.
FIG. 2 is a side view showing a state after assembly of the shielded cable with connector shown in FIG. 1 (b).

In the shielded cable with connector of this embodiment, as shown in FIG. 1A, a plurality of core wires 1 covered with an insulating material are bundled, and the bundled core wires 1 are braided as a shielding member. It is covered by the wire shield 2. The shield cable 8 is configured by further covering the outside of the braided wire shield 2 with the insulating sheath 3. At the end of the shielded cable 8, a molded member 4 in which a plurality of connector terminals 5 corresponding to the respective core wires 1 are formed is attached. Each core wire 1
Are electrically connected to the connector terminal 5 corresponding to the core wire 1.

Further, the shielded cable 8 is
Is passed through the hole formed. As shown in FIG.
As will be described later with reference to FIG. 1B and FIG. 1C, a hole through which the shield cable 8 passes and a hole with which the mold member 4 engages are formed. A connector terminal 7 is formed on one surface of the structural member 6, and a conductive film is formed on the entire surface of the structural member 6 by plating.
The conductive film of the structural member 6 and the connector terminal 7 are electrically connected. The conductive film formed on the surface of the structural member 6 may be formed by painting a conductive material instead of the one formed by plating.

As shown in FIG. 1B, after each of the core wires 1 of the shielded cable 8 is electrically connected to the connector terminal 5 of the molding member 4 corresponding to each of the core wires 1, the The peripheral surface excluding the surface on which the connector terminal 5 is formed is covered by the end of the braided wire shield 2. Thereafter, the mold member 4 covered with the braided wire shield 2 is inserted into the hole of the structural member 6.

As shown in FIG. 1C, the mold member 4 covered with the braided wire shield 2 is inserted into the hole of the structural member 6, and the gap between the inner wall of the hole of the structural member 6 and the mold member 4 is formed. The portion of the braided wire shield 2 covering the mold member 4 is sandwiched. As a result, the peripheral surface of the mold member 4 is covered by the structural member 6, and the portion of the braided wire shield 2 sandwiched between the mold member 4 and the structural member 6 comes into contact with the conductive film of the structural member 6. Electrically connected. As a result, the braided wire shield 2 and the connector terminal 7 are electrically connected via the conductive film of the structural member 6.

The connector is constituted by the mold member 4 on which the connector terminal 5 is formed as described above and the structural member 6 on which the connector terminal 7 is formed. 6 is attached.

FIG. 2 is a diagram for explaining the relationship between the shielded cable with connector described with reference to FIG. 1 and a printed wiring board in an electronic device to which the shielded cable with connector is connected.

As shown in FIG. 2, a connector 10 connected to a connector composed of a mold member 4 and a structural member 6
Are mounted on the printed wiring board 12. The printed wiring board 12 is formed by processing the metal housing 13.
Are attached by screws 15 to a support 14 formed at the same time.

Inside the connector 10, the mold member 4
A pin 11a corresponding to each connector terminal 5;
A pin 11b corresponding to each connector terminal 7 of the structural member 6 is provided. When the connector constituted by the mold member 4 and the structural member 6 is connected to the connector 10, each connector terminal 5 is electrically connected to the pin 11a corresponding to the connector terminal 5, and each connector terminal 7 is connected to the connector. Pin 1 corresponding to terminal 7
1b. In a normal printed wiring board, the ground is separated into a frame ground and a signal ground, and the pins 11b are electrically connected to the housing 13 and connected to a stable frame ground.
In the printed wiring board 12, the frame ground and the signal ground need not be separated.

The pins 11a are soldered to signal lines and signal ground patterns on the surface of the printed wiring board 12. By electrically connecting the pin 11a and the connector terminal 5, a signal line is transmitted through the pin 11a and the connector terminal 5.

As described above, in the shielded cable with a connector according to the present embodiment, the connector composed of the mold member 4 and the structural member 6 attached to the end of the shielded cable 8 is electrically connected to the core wire 1 of the shielded cable 8. , And a connector terminal 7 electrically connected to the braided wire shield 2 of the shielded cable 8. Thereby, when the connector at the end of the shielded cable 8 is connected to the connector 10 of the printed wiring board 12, the braided wire shield 2 and the ground of the printed wiring board 12 can be easily electrically connected. In addition, the connector at the end of the shielded cable 8 becomes smaller.

Furthermore, since the pigtail is not formed at the end of the shielded cable 8 unlike the conventional shielded cable with a connector, and the peripheral surface of the mold member 4 is covered with the braided wire shield 2, the core wire 1 is completely formed. And a shielded cable with a connector having good shielding characteristics can be obtained. Therefore, by using the shielded cable with connector of the present embodiment for making electrical connection in an electronic device, radiation noise generated from the electronic device is reduced.

(Second Embodiment) FIG. 3 is a view for explaining a shielded cable with a connector according to a second embodiment of the present invention. FIG. 3A is a perspective view showing a state before assembling the shielded cable with a connector according to the present embodiment, and FIG. 3B is a view showing a state during the assembly of the shielded cable with a connector shown in FIG. It is a side view showing a state. Then, FIG. 3 (c) changes to FIG.
FIG. 4 is a side view showing a state after assembly of the shielded cable with connector shown in FIG. 3 (b).

The shielded cable with connector of the present embodiment is different from the first embodiment in that a method of electrically connecting the shield member of the shielded cable and the conductive film formed on the surface of the structural member is used. Are different.

In the shielded cable with connector of the present embodiment, as shown in FIG. 3A, a plurality of core wires 21 covered with an insulating material are bundled, and
Are covered by a braided wire shield 22 as a shield member. The outside of the braided wire shield 22 is further covered with the insulating sheath 3 so that the shielded cable 2
8 are configured.

The mold member 24 is attached to the end of the shield cable 28. A plurality of connector terminals 25 corresponding to the respective core wires 21 are formed on the mold member 24. The shield cable 28 is passed through a hole formed in the structural member 26. As will be described later with reference to FIGS. 3B and 3C, the structural member 26 has a hole through which the shield cable 28 passes, and the mold member 2.
4 are formed. A connector terminal 27 is formed on one surface of the structural member 6, and a conductive film is formed on the entire surface of the structural member 26 by plating. The conductive film on the surface of the structural member 26 is
It is electrically connected to the connector terminal 27. The conductive film formed on the surface of the structural member 26 may be formed by painting a conductive material instead of the one formed by plating.

As shown in FIG. 3B, a metal ring 29 is crimped to the end of the braided wire shield 22 on the mold member 24 side. Each core wire 2 of the shielded cable 28
1 is a connector terminal 25 corresponding to each core wire 21
Is electrically connected to

As shown in FIG. 3C, the structural member 26
The metal ring 29
By inserting the mold member 24, the peripheral surface of the mold member 24 is covered by the structural member 26. Here, the metal ring 29 is sandwiched between the bottom of the hole of the structural member 26 with which the mold member 24 engages and the surface of the mold member 24 on the shield cable 28 side, so that the metal ring 29 is The inside of the hole 26 is in contact with the conductive film of the structural member 26. Thereby, the metal ring 29
And the conductive film of the structural member 26 are electrically connected,
The braided wire shield 22 and the connector terminal 27 are electrically connected via the metal ring 29 and the conductive film of the structural member 26.

The shielded cable with a connector of the present embodiment is also connected to a connector provided on a printed wiring board in an electronic device, as described with reference to FIG. 2 of the first embodiment.

As described above, in the shielded cable with connector of the present embodiment, the mold member 24 and the connector terminal 27 attached to the end of the shielded cable 28 are used.
A connector terminal 25 electrically connected to the core wire 21 of the shielded cable 28 and a connector terminal 27 electrically connected to the braided wire shield 22 of the shielded cable 28 are formed in the connector constituted as shown in FIG. Accordingly, when the connector at the end of the shielded cable 28 is connected to the connector provided on the printed wiring board, the braided wire shield 22 and the ground of the printed wiring board can be easily electrically connected. . Also, the shielded cable 28
The connector at the end is smaller.

In the above-described first and second embodiments, the shielded cable with connector has been described by showing the assembling procedure. However, the shielded cable with connector according to the present invention may be manufactured through the above-described assembling procedure. Not limited.

(Third Embodiment) FIG. 4 is a sectional view showing a connector according to a third embodiment of the present invention, and FIG.
FIG. 5 is a top view of the connector shown in FIG. 4. As shown in FIGS. 4 and 5, a male connector 52 as a first connector and a female connector 51 as a second connector are used as the connectors of the present embodiment. The male connector 52 includes a male connector housing 45 connected to one end of a plurality of cables 43, and a plurality of male connector pins 47 formed inside the male connector housing 45. Each male connector pin 47 is electrically connected to a conductor of the cable 43 corresponding to each male connector pin 47.

A concave portion is formed on one surface of the male connector housing 45 to be connected to the female connector 51.
A male connector pin 47 protrudes from the bottom of the recess. The male connector pin 47 protrudes from the opening surface of the concave portion of the male connector housing 45. The cable 43 is connected to the male connector housing 45 on the side opposite to the surface on which the concave portion is formed.

On the other hand, the female connector 51 is a female connector housing 4 disposed on the surface of the printed circuit board 42.
4 and a plurality of female connector pins 46 formed inside the female connector housing 44.
Male connector 52 of female connector housing 44
A concave portion is formed on one surface connected to the female connector, and a female connector pin 46 protrudes from the bottom of the concave portion. One ends of a plurality of substrate mounting leads 48 are connected to the female connector housing 44 on the side opposite to the surface on which the concave portion is formed. Each board mounting lead 48 is electrically connected to a female connector pin 46 corresponding to each board mounting lead 48. After the board mounting lead 48 has passed through the through hole formed in the printed board 42, the other end of the board mounting lead 48 is bonded to the other surface of the printed board 42 by solder 49.

The opening surface of the concave portion of the male connector 52 and the opening surface of the concave portion of the female connector 51 face each other, and the male connector pin 47 and the female connector pin 46 are brought into contact to be electrically connected. Are connected to the male connector 52 and the female connector 51. Here, the concave portions of the male connector 52 and the female connector 51 are filled with a gel-like ferrite 41 which is a gel-like substance containing ferrite. Thereby, the male connector pin 4
7 and the female connector pin 46 are wrapped by the gel-like ferrite 41. As described above, by using the connector filled with the gel-like ferrite 41, radiation noise can be reduced.

The material of the gel-like ferrite 41 is such that the gel-like ferrite 41 hardens after being filled into the concave portions of the male connector 52 and the female connector 51, so that the male connector 52 and the female connector 51 can be used. Are connected robustly, and a highly reliable connection is obtained.

The material of the gel-like ferrite 41 is made of a material having excellent peelability, so that the recesses of the male connector 52 and the female connector 51 are filled with the gel-like ferrite 41 and the male connector 52 and the female After the connection with the connector 51, the gel-like ferrite 41 can be easily removed from each connector. Therefore, unlike a connector using a conventional ferrite bead, by re-melting the solder for attaching the ferrite bead, unnecessary thermal stress is not generated on the printed circuit board. Further, it is not necessary to prepare a printed board on which a connector is mounted together with ferrite and a printed board on which a connector is mounted without ferrite in order to compare and study the effect of ferrite used for reducing radiation noise.

(Fourth Embodiment) FIG. 6 is a top view showing a connector according to a fourth embodiment of the present invention. In the connector of the present embodiment, the female connector is different from that of the third embodiment. In FIG. 6, the same components as those of the third embodiment are denoted by the same reference numerals. In the following, the points that are different from the third embodiment will be mainly described.

As shown in FIG. 6, the connector of the present embodiment is a male connector 52 as a first connector.
And a female connector 51a as a second connector. Similar to the female connector housing 44 used in the third embodiment, the female connector housing 4
A concave portion is formed on one surface of 4a connected to the male connector 52, and a plurality of female connector pins 46a protrude from the bottom surface of the concave portion. On the surface of the female connector housing 44a opposite to the surface on which the recess is formed,
A plurality of board mounting leads 48a corresponding to each of the plurality of female connector pins 46a are connected. Each female connector pin 46a is electrically connected to a board mounting lead 48a corresponding to each female connector 46a.

The female connector housing 44a is different from the female connector housing 44a used in the third embodiment in that the upper surface of the female connector housing 44a, that is, the surface on which the concave portion is not formed, is provided. A hole 61a is formed. Injection hole 61a
Penetrates from the outside of the female connector housing 44a to the concave portion of the female connector housing 44a. Thus, in a state where the female connector 51a and the male connector 52 are connected, the female connector housing 44a and the male connector housing 4 are inserted through the injection hole 61a.
The concave portion of No. 5 can be filled with a gel-like ferrite which is a gel-like substance mixed with a ferrite.

Therefore, in the connector of the third embodiment,
After connecting the male connector 52 and the female connector 51 without filling the concave portions of the male connector 52 and the female connector 51 with the gel-like ferrite, the male connector 52
When filling the concave portion of the female connector 51 with the gel-like ferrite, the male connector 52 and the female connector 5
1 must be separated. However, in the connector of the present embodiment, since the injection hole 61a is formed in the female connector housing 44a, after the male connector 52 and the female connector 51a are connected, the male connector 5
2 and the concave portion of the female connector 51a can be filled with the gel-like ferrite through the injection hole 61a.

(Fifth Embodiment) FIG. 7 is a top view showing a connector according to a fifth embodiment of the present invention. In the connector of the present embodiment, the female connector is different as compared with the third and fourth embodiments. In FIG. 7, the same components as those of the third embodiment are denoted by the same reference numerals. . The following description focuses on differences from the third and fourth embodiments.

As the connectors of this embodiment, a male connector 52 as a first connector and a female connector 51b as a second connector are used. In the female connector 51b, the female connector housing 44b
A concave portion is formed on one surface connected to the male connector housing 45, and a plurality of female connector pins 46b protrude from the bottom of the concave portion. Female connector housing 4
A plurality of board mounting leads 48b corresponding to each of the plurality of female connector pins 46b are connected to the surface of 4b opposite to the surface on which the concave portion is formed. Each female connector pin 46b is electrically connected to a board mounting lead 48b corresponding to each female connector pin 46b.

Further, an injection hole 61b is formed on the upper surface of the female connector housing 44b, that is, on the surface where no concave portion is formed. Further, the female connector housing 44b is different from the female connector housing 44a used in the fourth embodiment in that the upper surface of the female connector housing 44b and the injection hole 61b
An air vent hole 62 is formed at a position different from the above. The air vent hole 62 penetrates from the outside of the female connector housing 44b to the concave portion of the female connector housing 44b.

As described above, by using the female connector 51b in which the injection hole 61b and the air vent hole 62 are formed, the male connector 52 and the female connector 51 are formed.
In a state where the ferrite is connected to the male connector 52 and the female connector 51b, a gel-like ferrite, which is a gel-like substance containing ferrite, is injected into the recess 61 of the male connector 52 and the female connector 51b.
b. When gel-like ferrite is injected into the concave portions of the male connector 52 and the female connector 51b from the injection holes 61b, the air inside the concave portions of the respective connectors is exhausted from the air vent holes 62. Therefore, when injecting the gel-like ferrite from the injection hole 61b,
The backflow of the gel-like ferrite inside the recess of each connector housing is prevented by the pressure at the time of injecting the gel-like ferrite.

(Sixth Embodiment) FIG. 8 is a top view showing a connector according to a sixth embodiment of the present invention. The connector of the present embodiment is different from the fourth embodiment in that a partition is formed for each connector pin in a recess formed in the male connector housing and the female connector housing.

As shown in FIG. 8, the connector of this embodiment is a male connector 52c as a first connector.
And a female connector 51c as a second connector. The male connector 52c includes a male connector housing 45c connected to one end of a plurality of cables 43c, and a plurality of male connector pins 47c formed inside the male connector housing 45c. Each male connector pin 47c is a cable 4 corresponding to each male connector pin 47c.
It is electrically connected to the conductor 3c.

A concave portion is formed on one surface of the male connector housing 45c connected to the female connector 51c, and a male connector pin 47c projects from the bottom of the concave portion. Also, male connector housing 45c
A partition 64 is formed for each male connector pin 47c in the concave portion. The male connector pin 47c is
The male connector housing 45c protrudes from the opening surface of the concave portion. A cable 43c is connected to the male connector housing 45c on the side opposite to the surface on which the concave portion is formed.

On the other hand, the female connector 51c includes a female connector housing 44c and a plurality of female connector pins 4 formed inside the female connector housing 44c.
6c. Female connector housing 4
A concave portion is formed on one surface of 4c connected to the male connector 52c, and a female connector pin 46c protrudes from the bottom of the concave portion. In the recess of the female connector housing 44c, a partition 63 is formed for each male connector pin 47c. The concave portion of the female connector housing 44c is divided into a plurality of spaces for each female connector pin 46c by a partition 63, and an injection hole 61c corresponding to each space is formed.

One end of a plurality of substrate mounting leads 48c is connected to the female connector housing 44c on the side opposite to the surface on which the concave portion is formed. Each board mounting lead 48c is electrically connected to a female connector pin 46c corresponding to each board mounting lead 48c. The other end of the board mounting lead 48c is bonded to a printed board (not shown) by solder, as in the third embodiment.

An opening surface of a concave portion of the male connector 52c;
Facing the opening surface of the concave portion of the female connector 51c,
The male connector 52c and the female connector 51c are connected so that the partition 64 and the partition 63 match. Here, each male connector pin 47
c is in contact with and electrically connected to the female connector pins 46c corresponding to the respective male connector pins 47c.

As described above, in the connector of the present embodiment, the partition for each connector pin is formed in the concave portion of the male connector housing 45c and the female connector housing 44c, so that the concave portion of each connector housing is formed for each connector pin. Divided into multiple spaces. Therefore, for each of the pair of pin male connector pins 47c and female connector pins 46c that are electrically connected,
Gel-like ferrite, which is a gel-like substance mixed with ferrite, can be injected. By filling a specific space of the concave portion with the gel-like ferrite, it is possible to easily compare and examine which connector pin signal line of the connector is closely related to noise.

The connector described in the third to sixth embodiments can be applied to the connector of the shielded cable with a connector described in the first and second embodiments. For example, in the shielded cable with a connector shown in FIG. 1 of the first embodiment, the surface of the molded member 4 on which the connector terminals 5 are formed, as shown in FIGS. 4 and 5 of the third embodiment. A recess is formed in the substrate. The recess is filled with gel-like ferrite, and the mold member 4 is filled.
The connector constituted by the structural members 6 is connected to the connector 10 of the printed wiring board 12. A concave portion may be formed in a portion of the structural member 6 where the connector terminal 7 is formed, and the concave portion may be filled with gel-like ferrite.

[0094]

As described above, the present invention has the following effects.

(1) According to a first aspect of the present invention, a connector attached to an end of a shielded cable covers an insulating support member having a plurality of first connector terminals formed thereon and a peripheral surface of the support member. The first connector terminal is electrically connected to the core wire of the shielded cable, and the second connector terminal is electrically connected to the shielded member of the shielded cable. , The first and second connector terminals are electrically connected to another connector terminal different from those connector terminals only by connecting the connector at the end of the shielded cable. Since the pigtail is not formed on the shield member of the shielded cable, the shield member can be easily and electrically connected to the ground portion of the board via, for example, the second connector terminal. There is an effect that the connector can be reduced in size. Furthermore, since the structural member constituting the connector at the end of the shielded cable is covered with the end of the shield member of the shielded cable, the core wire of the shielded cable is completely shielded. As a result, there is an effect that generation of radiation noise is significantly reduced.

(2) According to the seventh aspect of the invention, by using the above-described shielded cable with a connector for making an electrical connection in an electronic device, the radiation noise generated from the electronic device is reduced. There is.

(3) The present invention according to claims 8 and 11 is characterized in that a concave portion is formed on the connection surface of the connector, and when the connector is connected, the concave portion of the connector is filled with a gel-like substance mixed with ferrite. The ferrite can be easily mounted on the connector. Further, the gel-like substance filled in the concave portion of the connector can be easily removed. Therefore, there is an effect that the effect of the ferrite can be easily compared and examined between the case where the ferrite is filled in the concave portion of the connector and the case where the ferrite is not filled.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a shielded cable with a connector according to a first embodiment of the present invention.

FIG. 2 is a diagram for explaining a relationship between a shielded cable with a connector described based on FIG. 1 and a printed wiring board in an electric device to which the shielded cable with a connector is connected.

FIG. 3 is a diagram illustrating a shielded cable with a connector according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a connector according to a third embodiment of the present invention.

FIG. 5 is a top view of the connector shown in FIG. 4;

FIG. 6 is a top view showing a connector according to a fourth embodiment of the present invention.

FIG. 7 is a top view showing a connector according to a fifth embodiment of the present invention.

FIG. 8 is a top view showing a connector according to a sixth embodiment of the present invention.

FIG. 9 is a view for explaining a shielded cable with a connector according to a conventional technique.

10 is a diagram for explaining a relationship between the shielded cable with connector described with reference to FIG. 9 and a printed circuit board in an electronic device to which the shielded cable with connector is connected.

FIG. 11 is a cross-sectional view showing a connector according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1, 21 Core wire 2, 22 Braided wire shield 3, 23 Insulation sheath 4, 24 Mold member 5, 7, 25, 27 Connector terminal 6, 26 Structural member 8, 28 Shield cable 10 Connector 11 pin 12 Printed wiring board 13 Metal housing Body 14 Support 15 Screw 41 Gelled ferrite 42 Printed circuit board 43, 43c Cable 44, 44a, 44b, 44c Female connector housing 45, 45c Male connector housing 46, 46a, 46b, 46c Female connector pin 47, 47c Male Connector pins 48, 48a, 48b, 48c Board mounting leads 49 Solder 51, 51a, 51b, 51c Female connector 52, 52c Male connector 61a, 61b, 61c Injection hole 62 Air vent hole 63, 64 Partition

Claims (14)

[Claims] 1. A shielded cable with a connector, comprising: a shielded cable having a plurality of core wires, a conductive shield member covering the plurality of core wires, and a connector attached to an end of the shielded cable. The connector includes an insulating support member on which a plurality of first connector terminals to which a plurality of core wires of the shielded cable are electrically connected in a corresponding manner, and a peripheral surface of the support member, A shielded cable with a connector, comprising: a shield member of the cable; and a structural member having a second connector terminal electrically connected thereto. 2. The shielded cable with a connector according to claim 1, wherein a conductive film is formed on the entire surface of the structural member by plating or painting. 3. The shield member of the shielded cable, wherein an end of the shield member on the connector side of the shielded cable covers a peripheral surface of the support member and is sandwiched between the support member and the structural member. The shielded cable with a connector according to claim 2, wherein the connector and the second connector terminal of the structural member are electrically connected via a conductive film of the structural member. 4. A shield member of the shielded cable is attached to an outer periphery of an end of the shield member on the connector side such that a core wire of the shielded cable passes through a hole of a metal ring. By being in contact with the conductive film of the structural member, the shield member of the shielded cable and the second connector are electrically connected via the ring and the conductive film of the structural member. The shielded cable with a connector according to claim 2. 5. A concave portion, which is filled with a gel-like substance containing ferrite when connecting the connectors, is formed on a connection surface of the connector that connects to another connector different from the connector. The shielded cable with a connector according to any one of claims 1 to 4, wherein the first connector terminal is formed at a bottom of the cable. 6. The shielded cable with a connector according to claim 5, wherein the second connector terminal is further formed at a bottom of the concave portion of the connector attached to an end of the shielded cable. 7. An electronic device, wherein an internal electrical connection is made using the shielded cable with a connector according to any one of claims 1 to 6. 8. A first connector having a recess formed on one surface and a plurality of connector pins protruding from the bottom of the recess, and a connector corresponding to each of the plurality of connector pins of the first connector on one surface. When connecting the second connector on which a plurality of pins are formed with the surface on the concave side of the first connector and the surface on the connector pin side of the second connector facing each other, the first connector 2. A connector member, wherein a gel-like substance mixed with ferrite is used as a connector member to be filled in the recess. 9. The method according to claim 8, wherein the gel-like substance is cured after being filled in the concave portion of the first connector.
4. The connector member according to item 1. 10. The connector member according to claim 8, wherein the gel-like substance has releasability. 11. A connector having a plurality of connector terminals and a connector housing in which the plurality of connector terminals are formed, wherein a recess for filling a gel-like substance containing ferrite is formed on one surface of the connector housing. A connector formed, wherein the plurality of connector terminals protrude from the bottom of the recess. 12. A hole for injecting the gel-like substance, which penetrates from the outside of the connector housing to the concave portion, is formed on a surface of the connector housing where the concave portion is not formed. A connector as described in. 13. A hole for air vent penetrating from the outside of the connector housing to the concave portion is formed on a surface of the connector housing where the concave portion is not formed and at a position different from the injection hole. Claim 1
3. The connector according to 2. 14. The connector according to claim 11, wherein a partition is formed in the recess of the connector housing for each connector terminal projecting from a bottom of the recess.
Connector according to item.