JP2000058195A - Connector and connector extracting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that can easily be extracted, without applying stress to a soldered part between a lead and a board, even when work space can not be secured and to provide a connector extracting method. SOLUTION: In a connector having a structure where a plug 4 is fitted to a jack 3, an extraction jig (slide cam 5) for engaging with multiple taper parts formed on the side face of the fitting part is integrated in the structure, and the plug 4 and the jack 3 fitted with each other are separated, by sliding the extraction jig 5 along the slope of the taper parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector having a structure in which a plug and a jack are fitted, and to a method for pulling out the connector. In recent years, communication equipment, personal computers, workstations, large-scale computers, and the like have a tendency that the number of pins of a connector on a substrate increases with an increase in signal lines due to high integration of circuits on the substrate and multifunctionalization. It is in. Therefore, in a board-to-board connection, in the case of a connector in which a multi-pin jack and a plug are fitted, a considerably strong force is required for insertion and removal. Particularly at the time of removal, a large stress is applied to a soldered portion connecting the lead of the connector and the board, which may cause disconnection and short circuit.

Therefore, there is a demand for a connector in which a multi-pin jack and a plug can be detached without applying stress to a soldered portion for connecting a lead of the connector to a substrate, even if the connector is fitted.

[0003]

2. Description of the Related Art FIG. 1 shows a conventional connector for connecting boards. On one board 101, for example, a jack 1 which is a connector of a type in which the board is inserted between two rows of SMT leads and soldered to both sides of the board.
03 is attached, and the other substrate 102 is attached with a plug 104 which is a type of connector for soldering an SMT lead to one side.

[0004] As shown in FIG.
2 are connected to each other by inserting or pulling out a connector soldered to each board, that is, a jack 103 and a plug 104, which can be fitted, in the direction of the arrow, thereby inserting and removing the connector. Was. that time,
The person who performs the insertion / extraction is the board 101 or the jack 103
The connector was directly inserted and removed.

[0005]

However, in the conventional connector insertion / removal method, as the number of pins of the connector increases, the force required at the time of insertion / removal increases. for that reason,
There is a problem in that stress is applied to the SMT lead soldering portion, and cracks occur in the solder connecting the lead and the substrate. Furthermore, there is a possibility that not only the occurrence of cracks but also the breakage of the leads and the failure of the substrate due to the short circuit may occur.

In the conventional connector insertion / removal method, when a plurality of connectors are mounted in parallel at a narrow interval,
There is a problem that a work space is not secured, and it is particularly difficult to remove the connector. SUMMARY OF THE INVENTION The present invention provides a connector and a connector withdrawal method that can be easily removed without applying stress to a soldering portion between a lead and a board even when a work space cannot be secured.

[0007]

In order to solve the above problems, a connector of the present invention comprises a plug (corresponding to a plug 4 in an embodiment described later) and a jack (corresponding to a jack 3 in an embodiment described later). In the mating connector,
A pull-out jig (a slide cam 5 according to an embodiment described later) that engages with a plurality of tapered portions (corresponding to tapered portions 7a, 7b, 7c, and 7d according to the embodiment described later) formed on the side surface of the fitting portion.
And the plug and the jack to be fitted are pulled out by sliding the pulling jig along the slope of the tapered portion.

In a conventional connector, a jack and a plug to be fitted have been manually inserted and removed by being inserted and removed by hand in a vertical direction. That is, as the number of pins of the connector increases, a greater force is required for insertion and removal. Especially when removing the connector, it was difficult to insert and remove the connector. On the other hand, in the present invention, a plurality of tapered portions formed on the side surface of the fitting portion between the jack and the plug are engaged with the projections of the extraction jig, that is, the projections of the extraction jig are tapered. By sliding along the inclination of the part, the plug and jack to be fitted are pulled out.

Therefore, no stress is applied to the soldering portion connecting the lead of the connector and the substrate, and cracks do not occur in the solder as in the prior art. Similarly, the failure of the board due to the disconnection and short circuit of the lead does not occur. Further, according to the present invention, even when a plurality of connectors are mounted in parallel at a narrow interval and a work space is not secured, a plug and a jack that can be easily fitted can be removed.

According to a first aspect of the present invention, there is provided a connector according to the second aspect, wherein at least one of the plug and the jack mounted on a substrate (corresponding to a plug 11 in an embodiment described later). Has a pin-shaped positioning mechanism (corresponding to a pin 12 in an embodiment to be described later) for performing accurate positioning with respect to a substrate (corresponding to a substrate 15 in an embodiment to be described later). A press-fit portion (corresponding to a press-fit portion 13 in an embodiment to be described later) for driving and holding a substrate to be formed is characterized.

In the connector of the present invention, a stronger fixing force is generated between the connector and the board by driving the press-fitting portion of the positioning mechanism into the board. Therefore, a stress is not applied to the soldering portion for connecting the lead of the connector and the substrate as compared with the connector according to the first aspect. According to a third aspect of the present invention, there is provided a method for extracting a connector having a structure in which a plug and a jack are fitted, wherein a pulling jig (corresponding to a slide cam 5 of an embodiment described later) is connected to a fitting portion. By sliding along the inclination of a plurality of the tapered portions (corresponding to the tapered portions 7a, 7b, 7c, 7d in the embodiments described later) formed on the side surface, the plug and the jack to be fitted are pulled out. And

According to the connector pull-out method of the present invention, no stress is applied to the soldering portion for connecting the lead of the connector to the board, and no crack is generated in the solder unlike the related art. Similarly, the failure of the board due to the disconnection and short circuit of the lead does not occur. Further, even when a plurality of connectors are mounted in parallel at a narrow interval and a working space is not secured, a plug and a jack that can be easily fitted can be removed.

A connector which can be mounted on a board other than the structure described in claim 1 or 2 (the structure in which the connector and the pull-out jig are integrated) is described in claim 4.
It has a pin-shaped positioning mechanism (corresponding to a pin 12 in an embodiment described later) for performing accurate positioning with respect to a board to be mounted (corresponding to a board 15 in an embodiment described later). A press-fit portion (corresponding to a press-fit portion 13 in an embodiment to be described later) for driving and holding a substrate to be formed is characterized.

In the connector of the present invention, a stronger fixing force is generated between the connector and the board by driving the press-fitting portion of the positioning mechanism into the board. For this reason, no stress is applied to the soldered portion connecting the lead of the connector and the board.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a connector having a structure in which a plug and a jack are fitted, which can be removed without applying stress to a lead of the connector and a soldered portion of a board. . FIG. 2 shows a first embodiment of the present invention. This embodiment corresponds to the connector described in claim 1.

In this embodiment, for example, a type in which one substrate 1 is inserted between two rows of SMT leads (SMT lead soldering portions 6) and soldered to both surfaces of the substrate 1 is used. A jack 3, which is a connector, is attached, and a plug 4, which is a type of connector for soldering an SMT lead (SMT lead soldering portion 6) to one surface, is attached to the other substrate 2. FIG. 2 shows a state in which the jack 3 and the plug 4 are fitted, and the wiring of the board 1 and the wiring of the board 2 are connected.

FIG. 3 shows a configuration example (shape) of the connector of the present invention shown in the embodiment of FIG. The connector of the present invention
As described above, for example, a connector having a structure in which the plug 4 and the jack 3 are fitted together, and further, a pulling jig which engages with a plurality of tapered portions formed on the side surface of the fitting portion,
That is, the projections 8a, 8b, which engage with the tapered portions 7a, 7b, 7c, 7d formed at four places on both sides of the plug 4,
This is a structure that is integrated with the slide cam 5 having 8c and 8d.

Therefore, in the embodiment shown in FIG. 2, the respective projections (8a, 8b, 8c, 8d) of the slide cam 5 are fitted into the respective tapered portions (7a, 7b, 7c, 7d) of the plug 4,
The slide cam 5 is fitted between the jack 3 and the plug 4 so as to sandwich it, and the state of the jack 3, the plug 4 and the slide cam 5 is maintained. In the embodiment shown in FIG. 2, a plurality of tapered portions are formed on the plug 4, but not shown, for example, a tapered portion may be formed on the jack 4 or on both connectors. Also,
The shapes of the leads of the jack 3 and the plug 4 are shown in FIGS. 2 and 3 for convenience of description, but are not limited thereto, and may be any shape.

Next, a method of removing the connector according to the present embodiment will be described based on an operation example shown in FIG. FIG. 4 (a)
Indicates a state in which the jack 3 and the plug 4 are fitted. At this time, each tapered portion of the plug 4 and the slide cam 5
Are fitted as shown.

In this state, by sliding the slide cam 5 along the inclination of the tapered portions 7a, 7b, 7c, 7d, that is, by sliding in the direction of the arrow in FIG. , 8b, 8c, and 8d lift the jack 3, and remove the plug 4 and the jack 3 to be fitted (see FIG. 4B). Therefore, according to the connector of the present invention, no stress is applied to the soldering portion 6 for connecting the lead of the connector and the board at the time of removal, and cracks are not generated in the solder as in the related art.
Similarly, failure of the substrate 1 and the substrate 2 due to disconnection and short circuit of the lead does not occur. Further, according to the present invention, even when a plurality of connectors (plugs 4) are mounted in parallel at a narrow interval and a working space is not secured, the plug 4 and the jack 3 which can be easily fitted can be removed.

FIG. 5 shows a second embodiment of the present invention. This embodiment corresponds to the connector described in claim 2 and can be said to be an application of the first embodiment. FIG. 5A shows an overall view of the connector, and FIG. 5B shows details of the portion A in FIG. In the present embodiment, the plug 11 shown in FIG. 5 (corresponding to the plug 4 described earlier in the first embodiment) is a pin 12 serving as a positioning mechanism for performing accurate positioning with respect to the substrate 15 to be mounted. It has composition which has. The connector of this embodiment uses a plug-type connector for convenience of explanation, but the shape of the connector is not limited to this.
For example, a normal connector (corresponding to the connector according to claim 4) that can be mounted on a board other than a jack-type connector and other structures (for example, the connector of the first embodiment) in which the connector and the pull-out jig are integrated. But it is good.

As shown in FIG. 6, the pin 12 as a positioning mechanism is further characterized by forming a press-fit portion 13 for driving and holding a plug 11 and a board 15 to be mounted thereon. After mounting on the board, it functions as a connector holding mechanism. That is, before being driven into the substrate 15, the pins 12 are temporarily fixed to the insulator 14 so that the tips of the pins 12 protrude from the insulator 14.
By pressing, the press-fit portion 13
Press-fit.

Therefore, it is defined that the dimensional relationship between the pin 12 and the insulator 14 is as follows (FIG. 6A).
(B)). Hole width B of press-fit portion of insulator 14, B 'of pin 12, wide hole width A of insulator 14, pin 12
Is defined as A> A ′> B ′> B.

Further, the length dimensions C, D and C 'of the insulator,
The dimensional relationship of D 'is defined by D'>D> C and D '>C'> C. FIG. 7 shows a specific press-fitting method of the pin 12. For example, as shown in FIG. 7, the pin 12 has a size such that the tip of the pin 12 protrudes from the insulator 14.
, And accurate positioning is performed in this state (see FIG. 7A).

Next, the press-fit portion 13 of the pin 12 is driven into the substrate 15 using the driving tool 16 (see FIG. 7B). In this state, a sufficient fixing force is generated even when the insertion / extraction force of the connector 11 is not applied to the lead, that is, even without soldering. As described above, in the connector (for example, the plug 11) of the present invention, a stronger fixing force is generated between the connector and the board 15 by driving the press-fit portion 13 of the pin 12 into the board 15. . Therefore, when inserting and removing the connector,
Further, stress is not applied to the soldering portion connecting the connector lead and the substrate 15 as compared with the connector of the embodiment.

[0026]

As described above, according to the connector of the present invention, no stress is applied to the soldering portion connecting the lead of the connector and the board, and cracks are generated in the solder as in the prior art. Absent. Similarly, the failure of the board due to the disconnection and short circuit of the lead does not occur. Further, according to the present invention, even when a plurality of connectors are mounted in parallel at a narrow interval and a working space is not secured, a plug and a jack that can be easily fitted can be removed.

Therefore, according to the present invention, it is possible to provide a connector and a connector withdrawing method that can be easily removed without applying stress to the soldering portion between the lead and the board even when a working space cannot be secured. Becomes

[Brief description of the drawings]

FIG. 1 is a view showing a conventional connector for connecting a board to a board.

FIG. 2 is a first embodiment of the present invention.

FIG. 3 is a configuration example of a connector of the present invention.

FIG. 4 is an operation example of the connector of the present invention.

FIG. 5 is a second embodiment of the present invention.

FIG. 6 is a diagram showing dimensions of a pin and an insulator.

FIG. 7 is a diagram showing a method of press-fitting a pin.

[Explanation of symbols]

 Reference Signs List 1 board 2 board 3 jack 4 plug 5 slide cam 6 SMT lead soldering part 7a taper part 7b taper part 7c taper part 7d taper part 8a protrusion 8b protrusion 8c protrusion 8d protrusion 11 plug 12 pin 13 press-fit part 14 insulator 15 Reference Signs List 16 Tool for driving 13 Second arm 101 Substrate 102 Substrate 103 Jack 104 Plug

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hideo Miyazawa 2-3-5 Higashi-Gotanda, Shinagawa-ku, Tokyo F-term Takamizawa Component Co., Ltd. F term (reference) 5E021 FA05 FA09 FB02 FB14 FC03 FC05 FC31 FC34 HB07 5E023 AA04 AA16 BB02 BB22 BB29 CC12 CC22 CC23 CC26 DD02 DD09 DD19 FF13 GG02 GG08 HH01 HH18 HH21

Claims (4)

[Claims] 1. A connector having a structure in which a plug and a jack are fitted with each other, wherein the connector is structured so as to be integrated with a drawing jig which engages with a plurality of tapered portions formed on a side surface of the fitting portion. A connector characterized in that a plug and a jack to be fitted are pulled out by sliding a pulling jig along an inclination of the tapered portion. 2. The connector according to claim 1, wherein at least one of the plug and the jack mounted on the board has a pin-shaped positioning mechanism for performing accurate positioning with respect to the board. A connector, wherein the positioning mechanism forms a press-fit portion for driving and holding a board to be mounted on the connector. 3. A method of pulling out a connector having a structure in which a plug and a jack are fitted, wherein a pulling jig is slid along a slope of a plurality of the tapered portions formed on a side surface of the fitting portion. A connector withdrawing method, wherein a plug and a jack are removed. 4. A connector mountable on a board, comprising a pin-shaped positioning mechanism for accurately positioning the board to be mounted, the positioning mechanism including a press-fitting portion for driving and holding the connector and the board to be mounted. A connector characterized by being formed.