JPH0719980U - PCB connection mechanism - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To connect two printed boards electrically and structurally with their soldering surfaces facing each other. [Structure] The male connector 200 includes a male contact 220.
And a male-side body having an insertion portion 211 that holds the contact portion 221. The female connector 100 has an insertion portion 211.
Female body 11 provided with an insertion hole 111 for inserting
0, and the female side contact 120 held in the female side body 110 by drawing out the contact portion 121 into the insertion hole 111. The male contact 220 includes a lead portion 222 connected to the contact portion 221, a contact portion 221, and a lead portion 222.
And a bending portion 223 between the insertion portion 21 and the insertion portion 21 of the male connector 200 by bending the bending portion 223.
1 is the opening 33 of the two printed circuit boards 300A and 300B.
Insertion hole 1 of female connector 100 through 0A and 330B
By inserting the connector 11 into the connector 11, the contact portion 221 of the male connector 200 and the contact portion 121 of the female connector are connected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printed circuit board connection mechanism for electrically and structurally connecting two printed circuit boards whose soldering surfaces face each other.

[0002]

[Prior art]

 Some printed circuit board connection mechanisms for electrically and structurally connecting two printed circuit boards facing each other with one surface being a soldering surface include a male connector and a female connector. This printed circuit board connection mechanism attaches a male connector to the electronic component mounting surface of one printed circuit board and a female connector to the electronic component mounting surface of the other printed circuit board so that the electronic component mounting surfaces face each other. It is realized by connecting both connectors.

Here, the soldering surface of the printed circuit board is a surface on which a wiring pattern to be connected to the lead portion of the electronic component is formed, and the lead portion and the wiring inserted from the electronic component mounting surface. The pattern is a surface to be connected by soldering. On the other hand, the electronic component mounting surface of the printed circuit board is the surface on which the lead portion of the electronic component is inserted. Therefore, in the printed circuit board, the main body of the electronic component is entirely on the electronic component mounting surface, and the lead portion is soldered by the soldering surface. The reason why one surface of the printed circuit board is the soldering surface and the other surface is the electronic component mounting surface is because the electronic components are soldered by reflow soldering.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional inter-printed-circuit board connecting mechanism has the following problems. That is, since the two printed circuit boards are connected with the electronic component mounting surfaces facing each other, a gap of at least the height of the male connector and the female connector is required between the two printed circuit boards. . Therefore, it is difficult to meet the demand for miniaturization of electronic devices.

Certainly, if the male and female connectors are mounted on the mounting surface of the printed circuit board, not on the electronic component mounting surface, the gap between the two printed circuit boards can be reduced, but For that purpose, there is also a problem that the male side and female side connectors must be manually attached after the reflow soldering of the electronic components is completed.

The present invention has been made in view of the above circumstances, and it is demanded to downsize electronic devices by electrically and structurally connecting two printed circuit boards with their soldering surfaces facing each other. It is an object of the present invention to provide a printed circuit board connecting mechanism which can deal with the above requirements and which does not require extra work steps such as manual soldering.

[0007]

[Means for Solving the Problems]

 The printed circuit board connection mechanism according to the present invention is an inter-printed circuit board connection mechanism for electrically and structurally connecting two printed circuit boards whose soldering surfaces face each other. It has a male connector that is attached to the surface and a female connector that is attached to the surface of the other printed circuit board on which electronic components are mounted. The male connector holds the male contact and the contact portion of this male contact. The female connector has a male side body having an insertion portion to be held, and the female side connector has a female side body provided with an insertion hole into which the insertion portion is inserted, and a contact portion led out into the insertion hole. And a female contact held by the female body, and the male contact can be bent between the lead portion connected to the contact portion and the contact portion and the lead portion. The male connector by inserting the insertion portion of the male connector into the insertion hole of the female connector through the openings of the two printed circuit boards by bending the bent portion. It is configured to connect the contact part of and the contact part of the female connector.

[0008]

【Example】

 FIG. 1 is a schematic perspective view showing a schematic structure of a printed circuit board connection mechanism according to an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of a female connector that constitutes the printed circuit board connection mechanism. 3A and 3B are drawings of a male-side connector that constitutes the inter-printed-circuit board connection mechanism. FIG. 3A is a schematic perspective view, and FIG. 3B is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a schematic perspective view showing a lead frame state of male contacts forming the male connector, and FIG. 5 is a schematic cross-sectional view illustrating an example of use of the printed circuit board connection mechanism.

First, the printed boards 300A and 300B connected by the printed board connecting mechanism according to the present embodiment will be described. The printed circuit board 300A has a soldering surface 320A on one side and an electronic component mounting surface 310A on the other side. Here, the soldering surface 320A is a surface on which a wiring pattern (not shown) connected to the lead portion of the electronic component is formed, and the lead portion and the wiring pattern inserted from the electronic component mounting surface 310A are This is the surface that is connected by soldering. On the other hand, the electronic component mounting surface 310A is a surface on which the lead portion of the electronic component is inserted. Therefore, in the printed circuit board 300A, the main body of the electronic component is entirely on the electronic component mounting surface 310A, and the leads are soldered on the soldering surface 320A.

Further, the printed circuit board 300A has an opening 330A. The opening 330A is set to a size that allows at least the insertion portion 211 of the male connector 200 described later to be inserted. In the vicinity of the opening 330A, a plurality of lead insertion holes 340A into which the lead portions 222 of the male side contact 200 described later are inserted are formed.

The other printed circuit board 300B is basically the same as the printed circuit board 300A except for the size of the opening 330B. The opening 330B of the printed circuit board 300B is smaller than the opening 330A and is set to be the same as the insertion hole 111 of the female side contact 100 described later.

The printed circuit board connection mechanism according to the present embodiment is an inter-printed circuit board connection mechanism that electrically and structurally connects two printed circuit boards 300A and 300B with soldering surfaces 320A and 320B facing each other. The male connector 200 is mounted on the electronic component mounting surface 310A of the one printed board 300A, and the female connector 100 is mounted on the electronic component mounting surface 310B of the other printed board 300B.

First, the male connector 200 will be described. The male connector 200 includes a male contact 220 having conductivity and a male body 210 that holds the male contact 220.

The male contact 220 is roughly divided into a contact portion 221, a lead portion 222, and a bent portion 223 between the contact portion 221 and the lead portion 222. The contact portion 221 is a portion that comes into contact with the contact portion 121 of the female contact 120, and the middle abdominal portion thereof is formed to be higher than the other portions. Further, the bent portion 223 is pre-curved so as to be easily bent when the male connector 200 is connected to the female connector 100.

On the other hand, as shown in FIG. 3, the male body 210 is made of an insulating synthetic resin, and has an insert portion 211 for holding the contact portion 221 of the male contact 220 and a lead portion. And a base end portion 212 that holds 222 together.

A plurality of concave grooves 213 are formed at a predetermined pitch on the maximum surface of the insertion portion 211. The concave groove 213 is a portion into which the contact portion 221 is fitted, and both end portions thereof are formed to be lower than the other portions. Further, the depth of the recessed groove 213 is set so that the fitted contact portion 221 is flush with the maximum surface.

Further, locking protrusions 215 are formed on the left and right side surfaces 214 of the insertion portion 211. The locking projection 215 constitutes a locking means together with a locking hole 113 of the female connector 100 described later.

The base end portion 212 collects a plurality of lead portions 222, and is formed near the boundary between the lead portion 222 and the bent portion 223.

The male connector 200 as described above is formed as follows. First, as shown in FIG. 4, the male contact 220 is formed in a lead frame state bridged between a pair of tie bars 224. A base end portion 212 is formed by insert molding on the male contact 220 in the lead frame state. Next, the contact portion 221 of the male side contact 220 is pressed into the concave groove 213 of the insertion portion 211. Then, the male side connector 200 is constructed by cutting the tie bar 224.

Next, the female connector 100 will be described. The female-side body 110 that constitutes the female-side connector 100 is formed of an insulating synthetic resin, and is formed into a substantially rectangular parallelepiped shape as a whole. As shown in FIG. 2, the female body 110 has one insertion hole 111 and a plurality of contact insertion holes 112 into which the female contacts 110 are inserted.

As described above, the insertion hole 111 is set to be slightly larger than the width dimension of the insertion portion 211 of the male connector 200. Further, locking holes 113 corresponding to the locking projections 215 of the insertion portion 211 are formed on both left and right side surfaces of the female body 110. That is, the locking protrusion 215 of the insertion portion 211 and the locking hole 113 of the female body 110 constitute a locking means between the female connector 100 and the male connector 200.

Further, the contact insertion hole 112 penetrates the female side body 110 like the insertion hole 111, and is formed corresponding to the pitch of the concave groove 213. Further, a lead-out hole 114 for guiding the contact portion 121 of the female contact 120 is formed between the contact insertion hole 112 and the insertion hole 111. The lead-out hole 114 is open to the lower surface of the female body 110. Therefore, the female contact 120 is inserted into the contact insertion hole 112 from the lower surface side of the female body 110.

The female contact 120 held by the female body 110 is formed by bending a conductive metal band, and has a contact portion 121 that is bent in a substantially triangular shape. It is composed of a lead portion 122 extending from the contact portion 121 and a stopper portion 123 formed at the tip of the contact portion 121.

When the female contact 120 is held by the female body 110, the contact portion 121 is led out into the insertion hole 111 through the lead-out hole 114, and the lead portion 122 is removed from the lower surface of the female body 110. Will be derived. Further, the stopper portion 123 is caught on the upper end portion 115 of the lead-out hole 114, and regulates the amount of protrusion of the contact portion 121 with respect to the insertion hole 111.

Next, an example of use of the inter-printed-board connecting mechanism including the female connector 100 and the male connector 200 as described above will be described with reference to FIG.

First, the female connector 100 is attached to the printed board 300B. The female connector 100 is attached from the electronic component mounting surface 310B side of the printed circuit board 300B. At this time, the lead portion 122 of the female contact 120 of the female connector 100 is inserted into the lead insertion hole 340B of the printed circuit board 300B. Further, in this state, the insertion hole 111 of the female body 110 of the female connector 100 corresponds to the opening 330B of the printed circuit board 300B. The lead portion 122 is, of course, soldered to a wiring pattern (not shown) formed on the soldering surface 320B of the printed circuit board 300B.

On the other hand, the male connector 200 is attached to the printed circuit board 300A. The male connector 200 is also attached from the electronic component mounting surface 310A side of the printed circuit board 300A. The lead portion 222 is inserted into the lead insertion hole 340A to be attached to the print substrate 300A.

In this state, the soldering surfaces 320A, 320B of the two printed circuit boards 300A, 300B face each other. By bending the bent portion 223, the insertion portion 211 of the male side connector 200 is inserted into the opening 330 as indicated by the arrow shown in FIGS. 1 and 5A.

Next, the insertion portion 211 is inserted into the insertion hole 111 of the female connector 100 through the opening 330B of the printed board 300B. Then, as shown in FIG. 5B, the contact portion 221 of the male connector 200 contacts the contact portion 121 of the female contact 120 of the female connector 100. As a result, the male connector 200 and the female connector 100, and thus the two printed circuit boards 300A and 300B are electrically connected.

Further, when the insertion portion 211 of the male connector 200 is inserted into a predetermined position of the female connector 100, the locking protrusion 215 of the insertion portion 211 is locked in the locking hole 113 of the female body 110. To be done. This makes it difficult for the insertion portion 211 of the male connector 200 to come off from the female connector 100, so that the two printed circuit boards 300A and 300B are structurally connected.

Further, the female connector 100 and the male connector 200 are locked by the locking means, so that the gap between the two printed circuit boards 300A and 300B is fixed.

[0032]

[Effect of device]

 The printed circuit board connection mechanism according to the present invention is a printed circuit board connection mechanism that electrically and structurally connects two printed circuit boards whose soldering surfaces are opposed to each other. The male connector is attached to the male connector, and the female connector is attached to the electronic component mounting surface of the other printed circuit board.The male connector includes a male contact and a contact portion of the male contact. The female connector has a female body having an insertion hole into which the insertion portion is inserted and a contact portion of the insertion hole. The male contact is held by the female body, and the male contact is bendable between the lead part connected to the contact part and the contact part and the lead part. Bent section By inserting the insertion part of the male side connector into the insertion hole of the female side connector through the opening of the two printed circuit boards by bending the bent part, the contact part of the male side connector is And the contact portion of the female connector. For this reason, it is possible to meet the demand for miniaturization of electronic devices, and only need an extra work process such as conventional soldering. Furthermore, since the gap between the two printed substrates can be set smaller than the conventional one, it is possible to meet the demand for miniaturization of electronic devices.

Further, since the locking means is provided between the female side body and the male side body, the structural connection between the two printed circuit boards is strengthened.

Furthermore, since the lead portion of the male connector is integrated by the base end portion, it is extremely easy to attach the male connector to the printed board.

Further, a concave groove into which the contact portion of the male contact is fitted is formed in the insertion portion of the male connector, and the concave groove becomes flush when the contact portion of the male contact is fitted. The insertion of the female connector into the insertion hole is smooth.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a schematic configuration of a printed circuit board connection mechanism according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of a female connector that constitutes the printed circuit board connection mechanism.

3A and 3B are drawings of a male-side connector which constitutes this inter-printed-circuit board connection mechanism, in which FIG. 3A is a schematic perspective view and FIG. 3B is a sectional view taken along line AA of FIG. It is a figure.

FIG. 4 is a schematic perspective view showing a lead frame state of male contacts forming a male connector.

FIG. 5 is a schematic cross-sectional view illustrating an example of use of this printed circuit board connection mechanism.

[Explanation of symbols]

 100 female side connector 110 female side body 111 insertion hole 120 female side contact 200 male side connector 210 male side body 211 insertion section 212 base end section 220 male side contact 221 contact section 222 lead section 223 bent section 300A, 300B printed circuit board 310A , 310B Electronic component mounting surface 320A, 320B Soldering surface 330A, 330B Opening

Claims (4)

[Scope of utility model registration request] 1. In a printed circuit board connecting mechanism for electrically and structurally connecting two printed circuit boards whose soldering surfaces are opposed to each other, a male-side connector attached to an electronic component mounting surface of one printed circuit board. A male connector having a female connector attached to an electronic component mounting surface of the other printed circuit board, the male connector having a male contact and an insertion portion holding a contact portion of the male contact. The female connector has a body, the female connector is provided with an insertion hole into which the insertion portion is inserted, and the contact portion is led out into the insertion hole to be held by the female body. A female contact, the male contact has a lead portion that is continuous with the contact portion, and a bendable portion that is bendable between the contact portion and the lead portion. , The bent part By bending the insertion portion of the male connector into the insertion hole of the female connector through the opening of the two printed circuit boards, the contact portion of the male connector and the contact portion of the female connector are connected. A printed circuit board connection mechanism characterized by the above. 2. The inter-printed circuit board connection mechanism according to claim 1, further comprising locking means provided between the female body and the male body. 3. The inter-printed circuit board connection mechanism according to claim 1, wherein the lead portions of the male-side connector are integrated by a base end portion. 4. A concave groove into which the contact portion of the male contact is fitted is formed in the insertion portion of the male connector, and the concave groove becomes flush when the contact portion of the male contact is fitted. The printed circuit board connection mechanism according to claim 1, wherein: