JP3058576B2 - Connector structure of printed wiring board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inserting a hard printed wiring board (hereinafter, referred to as an HPC) into a case through an insertion hole formed in the case, thereby connecting the HPC to the HPC through a connector provided in the HPC. The present invention relates to a connector structure of a printed wiring board for making an electrical connection with a case-side flexible printed wiring board (hereinafter, referred to as FPC).

[0002]

2. Description of the Related Art As a connector structure of a printed wiring board of this type, for example, there is one shown in FIG. That is, by inserting the HPC 3 having the connector 2 on the upper surface from the insertion opening 1 a formed in the case 1, the FPC 4 provided in the case 1 is electrically connected to the HPC 3. The FPC 4 is provided with a plurality of terminal portions 4a, and the plurality of terminal portions 4a are inserted into the insertion slot 1a. In addition, the case 1 is formed with a step portion 1b for guiding both ends of the HPC 3 inward from the insertion opening 1a. As shown in FIG. 6, the connector 2 has spring-shaped terminals 2a for connection to the terminal portions 4a, and the terminals 2a are connected to the HPC 3 by soldering 5.

[0003] In the connector structure of the printed wiring board configured as described above, when the HPC 3 is inserted into the case 1 from the insertion slot 1a, each terminal 2a of the connector 2 is connected to the FPC.
A predetermined amount of deflection is generated at each of the terminal portions 4a.
For this reason, as shown in FIG. 7, a force f as a contact pressure acts on the connector 2 from each terminal portion 4a. And
The resultant force F of the force f acts on the HPC 3 from the connector 2. Further, the HPC 3 receives the reaction force R from the step portion 1b of the case 1 and balances the force with the resultant force F. However, since a bending moment acts on the HPC 3, bending deformation occurs as shown by a dotted line in FIG.

[0004]

However, when bending deformation occurs in the HPC 3, the HPC 3 and the connector 2 are shifted in a direction away from each other, and there is a possibility that a problem such as a crack in the soldered portion 5 may occur.

An object of the present invention is to provide a connector structure for a printed wiring board which does not cause bending deformation in the HPC.

[0006]

In order to achieve the above object, the present invention provides a connector on a hard printed wiring board, and inserts the hard printed wiring board through an insertion opening formed in the case. By inserting in
A connector structure of a printed wiring board for electrically connecting the hard printed wiring board and a flexible printed wiring board provided in a case via the connector, wherein the connector has a flat holding surface. , The edge of the insertion slot
And a holding portion formed along the holding member for holding the contact pressure from the case side, and the case slides on the holding surface.
A movable guide surface, and extends inward of the case.
The connector is characterized in that a guide portion formed so as to be present and guiding the holding portion of the connector is provided.

Further, a storage box for storing the hard printed wiring board may be provided, and the hard printed wiring board may be inserted into the case from an insertion opening in a state of being stored in the storage box. It is preferable that the connector provided on the hard printed wiring board is configured to protrude from the storage box.

[0008]

In the connector structure of the printed wiring board configured as described above, the contact pressure acts on the connector from the case side. However, since a reaction force equal to the sum of the contact pressure acts on the holding portion of the connector via the guide portion of the case, it is possible to prevent the force of the contact pressure from acting on the HPC. Therefore, the bending deformation of the HPC can be prevented, and the occurrence of cracks or the like in the soldered portion due to the bending deformation can also be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, referring to FIG.
An embodiment will be described. However, the same reference numerals are given to the same components as those of the conventional example shown in FIGS. 5 to 7, and the description will be simplified.

As shown in FIG. 1, the connector 2 is provided with holding portions 21 at both left and right ends thereof, and the case 1 has a guide portion 11 for guiding the holding portion 21 of the connector 2.
Are formed along the edge of the insertion slot 1a. The guide 11 is formed to extend inward of the case 1. In a state where the holding portion 21 of the connector 2 is inserted into the guide portion 11, the HPC 3 is configured to be slightly separated from the step portion 1b.

In the connector structure of the printed wiring board configured as described above, both ends of the HPC 3 are connected to the case 1.
And the connector 2
While aligning the holding part 21 of the case with the guide part 11 of the case 1,
The HPC 3 is inserted into the case 1 from the insertion port 1a. Then, the connector 2 is bent into contact with the respective terminal portions 4a of the FPC 4 and enters the case 1 while sliding on the respective terminal portions 4a. Therefore, a force f as a contact pressure between the FPC 4 and each terminal 4 a acts on each terminal 2 a of the connector 2. That is, the resultant force F of the respective forces f acts on the connector 2. However, connector 2
Is held by the guide portion 11 of the case 1 via the holding portion 21 and the HPC 3 is slightly separated from the step portion 1b.
Is generated in the holding unit 21 via the.

Therefore, the force f acting on the connector 2 from the case 1 does not further act on the HPC 3. For this reason, bending deformation can be prevented from occurring in the HPC 3, and it is also possible to prevent cracks and the like from occurring in the soldered portion 5 due to the bending deformation.

In the above embodiment, the connector 2
In a state in which the holding portion 21 of FIG.
Although the PC 3 is configured to be slightly separated from the step 1b, the PC 3 may be configured to lightly contact the step 1b. As described above, when the HPC 3 is configured to lightly contact the step portion 1b, the HPC 3 can be stably held by the case 1. Also in this case, the force f is held by the holding portion 21 of the connector 2, so that the force f does not act on the HPC 3.

Next, a second embodiment of the present invention will be described with reference to FIG. However, components common to those of the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be simplified. The second embodiment differs from the first embodiment in that the central portion of the connector 2 is also held by the case 1.

That is, since the connector 2 is formed to be long in the left and right directions, a holding groove (holding part) 22 is provided in a center part between both ends in addition to the holding parts 21 provided in both right and left ends. Accordingly, the connector 2 itself is configured to be prevented from bending. On the other hand, the case 1 is provided with a guide ridge (guide portion) 12 that fits into the holding groove 22 to hold the holding groove 22 and guides the holding groove 22 inward of the case 1. I have.

In the connector structure of the printed wiring board configured as described above, the reaction force R
Therefore, the bending moment acting on the connector 2 can be reduced. Therefore, especially when the long connector 2 is adopted, the connector 2
This is effective in preventing bending or breakage. The other effects are the same as those of the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIGS. However, components common to those of the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be simplified. The third embodiment differs from the first embodiment in that the HPC 3 having the connector 2 is housed in a rectangular storage box 6 and the storage box 6 is inserted into the case 1 from the insertion opening 1a. That is the point.

That is, the storage box 6 is formed in a rectangular shape in a size that can accommodate the HPC 3 and has an inner wall 6a.
Is provided with a step 61 for supporting the lower surface end of the HPC 3 so that the connector 2 projects upward from the storage box 6 by a predetermined amount. The case 1 is formed with an insertion opening 1a substantially corresponding to the storage box 6, and along the edge of the insertion opening 1a, a guide portion 11 for guiding the holding portion 21 of the connector 2 protruding from the storage box 6. Are formed. The insertion slot 1a and the guide portion 11 are connected to the storage box 6 and the holding portion 21.
Extend inwardly of the case 1 for guiding and holding them respectively in the case 1. In a state where the storage box 6 is inserted into the insertion slot 1a and the holding portion 21 of the connector 2 is inserted into the guide portion 11, the HPC 3 is slightly separated from the step portion 61, or It is configured to be in light contact.

In the connector structure of the printed wiring board configured as described above, the storage box 6 is aligned with the insertion slot 1a of the case 1 and the holding section 21 of the connector 2 is aligned with the guide section 11 of the case 1 while storing. By pushing the box 6 into the insertion slot 1a, the HPC 3 can be easily stored in the case 1. In addition, since the HPC 3 is stored in the storage box 6, when the HPC 3 is inserted into the insertion port 1a, the electronic components and the like provided on the HPC 3 are inserted into the insertion port 1a.
Can be prevented from being damaged by touching. The other operations and effects are the same as those of the first embodiment.

[0020]

According to the present invention, the contact pressure acts on the connector from the case side. However, since a reaction force equal to the sum of the contact pressures acts on the holding portion of the connector via the guide portion of the case, it is possible to prevent the force of the contact pressure from acting on the HPC. Therefore, HP
The bending deformation of C can be prevented, and the occurrence of cracks or the like in the soldered portion due to the bending deformation can also be prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a connector structure of a printed wiring board shown as a first embodiment of the present invention.

FIG. 2 is a side view of a main part of a connector structure of a printed wiring board shown as a second embodiment of the present invention.

FIG. 3 is a perspective view of a main part of a connector structure of a printed wiring board shown as a third embodiment of the present invention.

FIG. 4 is an exploded perspective view of the connector structure of the printed wiring board.

FIG. 5 is a side view of a main part of a connector structure of a printed wiring board shown as a conventional example.

FIG. 6 is an essential part cross-sectional view of the connector structure of the printed wiring board.

FIG. 7 is an essential part side view showing a problem of the connector structure of the printed wiring board.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Connector 3 Hard printed wiring board (HPC) 4 Flexible printed wiring board (FPC) 6 Storage box 11 Guide part 12 Guide part (guide ridge) 21 Holding part 22 Holding part (holding groove) f Contact pressure

Continuation of the front page (56) References JP-A-3-25878 (JP, A) JP-A-6-163107 (JP, A) JP-A-3-25878 (JP, A) JP-A 8-230516 (JP) , A) JP-A-7-29647 (JP, A) JP-A-3-2580 (JP, U) JP-A-63-172074 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB (Name) H01R 12/16-12/28

Claims (3)

(57) [Claims] A connector provided on the hard printed wiring board, wherein the hard printed wiring board is inserted into the case through an insertion opening formed in the case, so that the hard printed wiring board is inserted through the connector. A connector structure of a printed wiring board for making an electrical connection between a wiring board and a flexible printed wiring board provided in a case, wherein the connector has a flat holding surface, and the insertion port
A holding portion formed along an edge of the case to hold a contact pressure from the case side, wherein the case is provided on the holding surface.
Having a flat guide surface slidable inside the case.
A connector structure for a printed wiring board, characterized in that a guide portion formed so as to extend to the connector and guide the holding portion of the connector is provided. 2. A storage box for accommodating a hard printed wiring board is provided, wherein the hard printed wiring board is inserted into a case from an insertion opening in a state of being stored in the storage box. Item 2. A connector structure for a printed wiring board according to item 1. 3. The connector structure for a printed wiring board according to claim 2, wherein the connector provided on the hard printed wiring board protrudes from the storage box.