JPH0448564A - Connector - Google Patents

Abstract

PURPOSE:To secure connection reliability and stabilize characteristics by providing a fitting section pinching a board from the thickness direction on the housing of a connector, providing fitting holes communicated to connector fitting holes on the fitting section, and communicating and fastening them with screws. CONSTITUTION:When a male connector 13 is to be mounted on an electronic circuit package 3, terminals 21 of a housing 20 are inserted and coupled to lands 25 of a flexible board 14 and connected by soldering. The printed board 2 of the electronic circuit package 3 is inserted into notch sections 22 of fitting sections 19 so that connector fitting holes 17 are communicated to fitting holes 23 of the housing 20. Screws 15 are inserted into the fitting holes 23 to the outside to connect them, and the screws 15 are fastened and fixed with nuts 16.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connector for electrically connecting an electronic circuit package mounted with electronic components and an electronic device body housing the electronic circuit package. It's about structure.

[Conventional technology]

FIG. 1 is a partial cross-sectional view showing an example of a conventional connector structure.

In the figure, 1 is an electronic component such as a surface-mounted component, 2 is a printed circuit board on which a large number of electronic components 1 are mounted at predetermined positions, and an electronic circuit package 3 is constituted by these components.

Reference numeral 4 denotes a concave guide rail for inserting the electronic circuit pancake 3 into an electronic device main body (not shown), and by sliding along this guide rail 4, connectors described later can be fitted and connected. ing.

Reference numeral 5 designates a male connector provided on the electronic circuit package 3, in which terminals 6 passed through a plurality of through holes formed in the printed circuit board 2 of the electronic circuit package 3 are fixed with solder 7 from the back side. The part that protrudes to the side,
It is bent at a right angle at a predetermined position so as to be parallel to the surface of the printed circuit board 2, facing the mating partner, and is held by the housing 8.

Reference numeral 9 denotes a female connector to which the male connector 5 is mated. It is positioned and fixed to correspond to the male connector 5, and includes a housing 11 having a shape corresponding to the inner shape of the housing 8 of the male connector 5, and a fitting hole 12 into which the terminal 6 fits. There is.

To fit the male and female connectors 5 and 9 described above, first, align the electronic circuit package 3 with the side where the male connector 5 is provided on the predetermined guide rail 4 provided on the main body of the device with the side where the male connector 5 is provided as the tip. Slide along the arrow in the direction of the arrow in the figure.

When the electronic circuit package 3 is inserted deep into the device body, the male connector 5 provided on the electronic circuit package 3
is opposed to the female connector 9 of the back wiring board 10, and by further insertion, the housing 8 of the vaginal connector 5 fits over the housing 11 of the female connector 9, and thereby the male connector 5 The terminal 6 is inserted into the fitting hole 12 of the female connector 9, and the two are electrically connected.

[Problems to be Solved by the Invention] However, the above-mentioned conventional technology has some problems as shown below.

First, since the male connector on the electronic circuit package side is fixed to one side of the printed circuit board, the center of force when pushing the electronic circuit package is misaligned with the center of the connector. When the package is inserted along the guide rail, the insertion force is centered on the printed circuit board, and since the connector is provided on the side of the printed circuit board, the center of the connector in the mating direction is the center of the electronic circuit package in the insertion direction. It just becomes parallel to
There will never be a match.

For this reason, the electronic circuit package receives force from the surface on which the male connector is attached, and the printed circuit board tends to warp. There is a problem in that the reliability of the connection is adversely affected.

Further, since the terminals on the male connector side are fixed to the printed circuit board by soldering and are bent, it is difficult to make the lengths uniform precisely, and the lengths inevitably become irregular.

This caused the inductance values between the terminals to be inconsistent, making the characteristics during high-speed communication unstable.

Furthermore, since the length of the terminals has to be long due to the structure, there is a problem in that the terminals located particularly far from the printed circuit board surface generate large noise, which deteriorates the communication function.

The present invention has been made to solve the above-mentioned problems, and it prevents the printed circuit board from being deformed due to misalignment of the center in the insertion direction when inserting the electronic circuit package.
The purpose is to ensure connection reliability of mounted components, unify the length of male connector terminals to stabilize characteristics in high-speed communication, and provide an excellent connector with low noise.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention provides a connector that is attached to one end of a substrate and that is mated with a connector provided at the back of an electronic device by inserting the substrate into the device main body. A connector mounting hole is provided at the edge, a mounting portion is provided in the housing of the connector lid for holding the board from the board thickness direction, and a mounting hole is provided in this mounting portion that communicates with the connector mounting hole, thereby making it flexible. The connector terminal and the board terminal are electrically connected by the board, and the connector mounting hole and the mounting hole of the mounting part are connected and fastened with a screw, so that the center of the connector and the center of the electronic circuit package in the insertion direction are aligned. I did it like that.

Further, the board insertion width of the mounting part that holds the board from the board thickness direction is made wider by a predetermined width than the board thickness direction, and the connector mounting hole of the board and the mounting hole of the housing mounting part are made wider by a predetermined width than the board thickness direction. By making the diameter wider by a predetermined width than the diameter of the fastening screw, the connector can be attached to the board in a floating state.

[For production]

With the above configuration, when the board is inserted into the back of the electronic device along the guide rail in order to mate the connector, the connector receives the insertion force of the board at the center, and is easily mated with the connector on the opposing electronic device side. .

In addition, if the floating structure is used, during this mating operation, for example, the mating positions of the connector attached to the device and the connector attached to the board may not match accurately. Even if there is some misalignment, the connector on the board side will float in accordance with the position on the device side, and the connector will be fitted smoothly.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a main part of a connector structure showing a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of a male connector.

In FIGS. 1 and 2, 3 is an electronic circuit package;
4 is a guide rail, 9 is a female connector, 10 is a back wiring board, 11 is a housing, and 12 is a fitting hole, and since these are almost the same as conventional ones, they will be given the same symbols as conventional ones and their explanations will be given. Omitted.

Reference numeral 13 denotes a male connector attached to the electronic circuit package 3, which ensures electrical connection via the flexible board 14, and also connects to the connector mounting hole 17 of the printed circuit board 2 of the electronic circuit package 3 with screws 15 and nuts 16. It is fastened and fixed.

The mounting structure of this male connector 13 will be explained using the exploded view of FIG. 2. First, a pair of connector mounting holes 17 for mounting the male connector 13 are formed through one end edge of the printed circuit board 2 . Between the pair of connector mounting holes 17, a predetermined number of pads are formed on both the front and back surfaces to serve as terminals on the printed board side for electrical connection.

The male connector 13 consists of a housing 20 having attachment parts 19 to the printed circuit board 2 at both ends, and a plurality of terminals 21 held in a predetermined arrangement, and is adapted to be fitted and connected to the female connector 9. . The mounting portion 19 is connected to the electronic circuit package 3 from both ends of the housing 20.
This protruding portion maintains a gap between the terminal 21 and the printed circuit board 2 at a predetermined width.

The mounting portion 19 has a notch 22 in the center having a width corresponding to the thickness of the printed circuit board 2, and is divided into two upper and lower stages by this notch 22. A mounting hole 23 for mounting the printed circuit board 2 is formed so as to pass through the mounting portion 19.

24 is a flexible board that electrically connects the terminals 21 of the housing 20 and the printed circuit board 2; this flexible board 24 has lands 25 that engage with the terminals 21 arranged in the center, and also has lands 25 arranged in the upper and lower parts. A plurality of terminals 26 connected to the pads 18 of the printed circuit board 2 are arranged on the edge.

When the above-described male connector 13 is mounted on the electronic circuit package 3, the terminals 21 of the housing 20 are first penetrated and engaged with the lands 25 of the flexible substrate 24, and the connection is made by soldering. In this state, the printed circuit board 2 of the electronic circuit package 3 is inserted into the notch 22 of the mounting portion 19 so that the connector mounting hole 17 communicates with the mounting hole 23 of the housing 20. Then, in order to connect these, a screw 15 is communicated from the mounting hole 23 and penetrated to the opposite side, and is fastened and fixed with a nut 16.

After that, in order to connect the terminals 26 of the flexible substrate 24 to the pads 18 of the printed circuit board 2, the flexible substrate 24 is
is bent so as to wrap around the printed circuit board 2, and the terminals 26 are made to correspond to the pads 18 formed on the front and back surfaces, and are connected by soldering.

As a result, the male connector 13 is mounted in a structure in which the electronic circuit package 3 is sandwiched in the center as shown in FIG. It will be perfectly aligned with the center.

Therefore, when the electronic circuit package 3 is inserted in the direction of the arrow in the figure along the guide rail (not shown) in order to mate the #la connectors 13 and 9, the male connector 13 applies the insertion force of the electronic circuit package 3 at the center. The female connector 9 is received and fitted easily with the opposing female connector 9.

FIG. 3 is a structural diagram of a connector showing a second embodiment;
FIG. 4 is an exploded perspective view of the main part of FIG. 3.

This second embodiment has almost the same structure as the first embodiment, but the mounting structure for attaching the electronic circuit package 3 to the printed circuit board 2 is such that it is held in a floating state with respect to the printed circuit board 2. It has a floating structure.

In Fig. 3 and Fig. 4, each part structure is shown in the above-mentioned first
Since it is almost the same as the embodiment shown in FIG. 1 and FIG. 2, the same reference numerals as those in FIGS.

In other words, when the thickness of the printed circuit board 2 of the electronic circuit package 3 is t, and the gap between the notch 22 of the male connector 13 that holds the printed circuit board 2 is T, the dimensional relationship between the two is T>L. .

As a result, connector mounting hole 17 and mounting hole 2
Even if the screw 15 is connected to the electronic circuit package 3 and the male connector 13 is connected with the nut 16 on the opposite side, the electronic circuit package 3 and the male connector 13 are structured to float in the thickness direction of the printed circuit board 2 by the dimension T-t. becomes.

Also, the mounting hole 2 of the housing 20 of the male connector 13 is
3 is Dl, the diameter of the connector mounting hole 17 of the printed circuit board 2 is D2, and the diameter of the screw 15 is D, the respective dimensional relationship is Di>D.

It is formed so that D2>D. As a result, screw 15
The male connector 13 and the printed circuit board 2 are floating in the direction perpendicular to the insertion direction of the male connector 13 and the printed circuit board 2 and the board thickness direction by the difference between the diameter DI and the diameter D2 of each person. It has a structure.

When fitting the male connector 13 to the female connector 9 fixed to the back wiring board 10 using the above-described structure, the electronic circuit package 3 is inserted toward the back wiring board 10 along a guide rail (not shown). At this time, even if the positions of the female connector 9 and the male connector 13 of the back wiring board IO are not attached with high precision, the male connector 13 floats relative to the printed circuit board 2 and absorbs the dimensional error between them. Therefore, the connectors 9 and 13 can be fitted together with high accuracy by inserting the electronic circuit package 3 as it is along the guide rail.

〔Effect of the invention〕

As explained above, according to the present invention, in a connector that is attached to one end of a substrate and that is fitted to a connector provided at the back of an electronic device by inserting the substrate into the device main body, one end of the substrate is provided. A connector mounting hole is provided on the edge, a mounting portion is provided in the housing of the connector for holding the board from the board thickness direction, and a mounting hole is provided in this mounting portion that communicates with the connector mounting hole, thereby making the connector flexible. The connector terminal and the board terminal are electrically connected by the board, and the connector mounting hole and the mounting hole of the mounting part are connected and fastened with a screw, so that the center of the connector and the center of the electronic circuit package in the insertion direction are aligned. I decided to do so.

For this reason, the connector can receive insertion force from the center, which prevents the board from warping.Therefore, there is a risk that warping of the board may deteriorate the reliability of soldering of the mounted components and further deteriorate the function of the components. This also eliminates the need for a reliable connection.

Further, in the second embodiment, since the connector is supported in a floating structure, it is no longer necessary to perform highly accurate positioning with the connector on the device side, which is the mating plate, as in the conventional case. In other words, both connectors are structured so that they can be mated to the other connector simply by inserting the electronic circuit package to which one connector is attached into the device. It had to be done with high precision when fixing it, but it took a lot of man-hours to do it without error. Furthermore, in order to ensure accuracy, it was necessary to enlarge the insertion opening of the male connector or to widen the mounting pinch of the board to the electronic device, but by using a floating structure, , it has become possible to absorb accuracy errors between the two.

This eliminates the need for highly accurate adjustment of the mounting position of the connector, which facilitates assembly and allows for smooth fitting with the female connector.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part showing the structure of a first embodiment of the present invention, FIG. 2 is an exploded perspective view of a male connector of the first embodiment,
Fig. 3 is a sectional view of the main part showing the structure of the second embodiment, Fig. 4 is an exploded perspective view of the male connector of the second embodiment, and Fig. 5 is a sectional view of the main part showing the structure of the conventional example. It is. 2... Printed circuit board 4... Guide rail 10... Barac wiring 13... Male connector 1 15... Screw 1 3... Electronic circuit package 9... Female connecting board 4... Flexible Board 6...Nut 17...Connector mounting hole 19...Mounting part 20...Housing 21...
・Terminal 22...Cutout 23...Mounting hole Patent applicant Oki Electric Industry Co., Ltd. Agent Patent attorney Takaji Kanakura 1 Country

Claims (1)

[Scope of Claims] 1. In a connector that is attached to one end of a board and that fits with a connector provided at the back of an electronic device by inserting the board into the device main body, a connector that is attached to one end of the board In addition to providing a hole for attaching a connector, a mounting portion for sandwiching the board from the board thickness direction is provided in the housing of the connector, and a mounting hole communicating with the connector mounting hole is provided in this mounting portion, so that the connector can be mounted using a flexible board. By electrically connecting the terminal and the board terminal and connecting the connector mounting hole and the mounting hole of the mounting part with screws, the center of the connector and the center of the electronic circuit package in the insertion direction are aligned. Characteristic connectors. 2. The board insertion width of the mounting part that holds the board from the board thickness direction is made wider by a predetermined width than the board thickness direction, and
The diameters of the connector mounting hole of the board and the mounting hole of the mounting portion of the housing are made wider by a predetermined width than the diameter of the fastening screw, so that the connector is mounted in a floating state with respect to the board. The connector according to item 1 above.