JPH04304699A - Board insertion/removal structure - Google Patents

Abstract

PURPOSE:To provide a board insertion and removal structure capable of preventing connector damage, eliminating extra manday and preventing insertion errors mechanically and positively by preventing board insertion before a board inserted in error is inserted to the depth of a baord rack. CONSTITUTION:A sub-connector 3b, which is inserted into and removed from a mother board 6 substantially at a cross angle are installed near the edge where a plurality of main connectors 3a are installed to the mother board 6. Moreover, a plurality of boards 2 which prevent insertion errors of the main connectors and which is removed from there, and the mother board 6 are fixed. In addition, a guide means 7 is installed so that it may guide the mother board to be inserted into and removed from the mother board 6. There is also provided a board rack 1, thereby constituting this board insetion/removal structure. Furthermore, an insertion error prevention section 5 or an insertion error prevention material 4 for preventing error insertion near the vice connector or main connectors.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a board insertion/removal structure.
In particular, the present invention relates to a board insertion/removal structure that prevents incorrect insertion/removal of a board to/from a motherboard.

0002

2. Description of the Related Art Conventionally, board racks have been known that require a motherboard (connector board) and are provided with a plurality of boards that can be inserted into and removed from the motherboard. This board is provided so that it can be inserted into and removed from a predetermined connector on the motherboard, and is usually designed to prevent erroneous insertion and removal.

FIG. 18 is a perspective view of a main part of a conventional board insertion/removal structure provided with a mechanism for preventing erroneous insertion/removal. In FIG. 18, a motherboard 6 is fixed to the back wall of a board rack 1. This motherboard 6 has a female connector 3a of the male and female connectors 3.
are provided diagonally and shifted as shown in the figure, and the board 2 with the male connectors 3b provided in positions corresponding one-to-one to the female connectors 3a is guided by the guide rail 7 in the direction of the arrow in the figure. The guide moves in the A direction to prevent incorrect insertion and removal of the board 2.

Next, FIG. 19 is an external view of a conventional male and female connector 3. As shown in the figure, one connector 3c provided on the motherboard side has grooves 8 formed at different positions. A claw 9 is inserted and fixed as shown in the figure. The connector 3d, which is inserted into and removed from the connector 3c in a one-to-one correspondence, is provided with claws 9 in addition to the grooves 8 which correspond to one-to-one correspondence, so that the connector 3d is inserted into and removed from the connector 3c. It is configured as follows.

[0005] With this structure, erroneous insertion and removal between the connectors is prevented. Furthermore, FIG. 20 is a partial external view of a conventional board rack, showing the opening side through which boards are inserted into and removed from the board rack 1. In this figure, a display member 11 is provided on the substrate 2, and is marked with a symbol C. Further, near the end of the guide rail 7 on the board rack 1 side, a matching part 10 that matches the marking of the display member 11 is provided, and by matching these marks when inserting and removing the board 2, This is to prevent incorrect insertion and removal.

[0006]

[Problem to be Solved by the Invention] However, since the conventional method for preventing incorrect insertion and removal is as described above, in the conventional example having the configuration shown in FIG. Since it is determined for the first time whether the insertion position is correct or not, the board must be inserted all the way, and if board 2 is inserted into board rack 1 by mistake, the connectors may collide with each other. It happens and
Forcibly inserting it will cause damage to the connector.

Furthermore, in the conventional example having the configuration shown in FIG. 19, extra man-hours are required to attach the tab to the connector, and moreover, the attachment position may be incorrect. Furthermore, the conventional example with the configuration shown in FIG. 20 has a problem in that incorrect insertion cannot be mechanically and actively prevented. Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent incorrect insertion of a board before inserting it all the way into the board rack. It is an object of the present invention to provide a board insertion/removal structure that can mechanically and actively prevent erroneous insertion without requiring additional man-hours and preventing damage to the connector.

[0008]

[Means to solve the problem] and

[Operation] In order to solve the above problems and achieve the purpose,
The board insertion/removal structure of the present invention is provided with a sub-connector near the edge that is inserted/removed in a direction substantially orthogonal to a motherboard board provided with a plurality of main connectors, and the sub-connector is inserted into/removed from the main connector by mistake. A board insertion/removal device comprising a plurality of boards that can be inserted and removed with protection, and a board rack that is provided with a guide means for fixing the motherboard board and guiding the board to be inserted into and removed from the motherboard. The structure is such that the erroneous insertion prevention part or the erroneous insertion prevention member for preventing erroneous insertion is provided near the sub connector or the main connector, so that the erroneously inserted board is erroneously inserted in front of the connector. to work.

Preferably, the erroneous insertion prevention member is provided on the substrate rack and forms an opening through which the substrates, each having the erroneous insertion prevention portions provided at different locations, are guided by the guide means. This works to prevent incorrectly inserted boards from being inserted in front of the connector. Preferably, the erroneous insertion prevention member is provided in the substrate rack, and the substrates having the erroneous insertion prevention portions formed in different parts are guided by the guide means and then allowed to pass through. It works to prevent incorrectly inserted boards from being inserted in front of the connector.

Preferably, the erroneous insertion prevention portion is a hole provided on the side of the board rack, and the erroneous insertion prevention portion is a hole provided on the side of the substrate rack, and the erroneous insertion prevention member is formed in different parts of the substrate after being guided by the guide means. By allowing the board to pass through the hole, it works to prevent incorrectly inserted boards from being inserted in front of the connector.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. (Description of the first embodiment) FIG. 1 is an external perspective view of the board insertion/removal structure of the first embodiment.
Only shown. In this figure, a motherboard 6 is fixed to the back wall side of a board rack 1 formed into a box shape as shown.

Female connectors 3a of male and female connectors 3 are provided on this motherboard 6 in the same row as shown in the figure, and male connectors 3b are installed in positions corresponding one-to-one to these female connectors 3a. The substrate 2 provided on the edge,
The board 2 is inserted and removed by being guided in the direction of arrow A in the figure by guide rails 7 provided on the opposite wall of the board rack 1.

As shown in the figure, an opening 5a is formed in the opposing wall portion 1a of the board rack 1 on the motherboard 6 side.
A set of regulating members 5, which are formed on an extension of the guide rod 7 and have different depths in the vertical direction to prevent incorrect insertion, are fixed in advance by welding, screwing, or the like. On the other hand, a stopper 4 is provided near the male connector 3b of the board 2 to form a part to prevent incorrect insertion.

FIG. 2 is an explanatory diagram of the operation of the board insertion/removal structure shown in FIG. As it moves, the board 2 is shown to be able to pass only if it can pass through the space sandwiched by the end portions 5b of the regulating member 5. FIG. 3 is an explanatory diagram of the operation when there are four boards 2 in FIG. As the substrate 2 is moved in the direction of the broken line arrow A, the substrate 2 can only pass through the space sandwiched by the end portions 5b of the regulating member 5. Further, the stopper 4 is fixed with a screw 12, and for this attachment, the board 2 is
Holes 15 are bored at regular intervals.

As described above, the stoppers 4 are attached to the boards 2 that are inserted into different connectors on the motherboard side.
By providing the connectors at different positions, incorrect insertion can be prevented before the connector is inserted, thereby preventing damage to the connector. Also, the connectors on the motherboard side and the connectors on the board 2 side are installed in a vertical line as shown in the diagram. be able to. Figure 4
is a partial plan view of the board 2, in which the hole 15 is connected to the connector 3.
The figure shows that the holes are drilled at equal intervals on both sides of the substrate 2, and in this way, the outer shape of the substrate 2 can be made all the same.

Next, FIG. 5 is an installation diagram showing a first modification of the method of fixing the stopper shown in FIG. As shown in the figure, a cleft portion 40a is integrally formed. This stopper 40 is moved and press-fitted in the direction of the arrow in the figure to be fixed to the substrate 2. Furthermore, Figure 6
is an installation diagram showing a second modification of the method of fixing the stopper shown in FIG. is forming. The stopper 41 may be fixed to the substrate 2 by moving and press-fitting it in the direction of the arrow.

FIG. 7 shows a modification of the board insertion/removal structure of the first embodiment shown in FIG. 5b are all arranged. In this figure, the stoppers 4 are inserted into recesses 14 provided at different positions in the regulating member 5 (Fig. 7, b).
) to prevent incorrect insertion.

Furthermore, FIG. 8 shows another modification of the board insertion/removal structure of the first embodiment, in which a bar-shaped protrusion 13 is provided in place of the regulating member 5. This figure shows how a recess 4h is formed in the stopper 4 to prevent incorrect insertion. For this purpose, the projections 13 are fixed on the board rack 1 or the motherboard 6 so as to be substantially vertically disposed from different positions on the motherboard 6, while the recesses 4h of the stoppers 4 are formed at positions corresponding to the projections 13. The stopper 4 is fixed on the base plate 2 in a corresponding manner. In the above configuration as well, incorrect insertion can be similarly prevented.

Subsequently, FIG. 9 shows still another modification of the board insertion/removal structure of the first embodiment, in which the stopper 4 for preventing incorrect insertion by the regulating member 5 is broken in an L-shape as shown in the figure. It is formed of an angle material 4d that has a shape and is close to the full length of the board 2, and the above configuration can similarly prevent incorrect insertion. (Description of Second Embodiment) Next, FIG. 10 is an external perspective view of the board insertion/removal structure of the second embodiment, showing only the bottom board 2 of the plurality of boards 2. In this figure, a motherboard 6 is fixed to the back wall side of a board rack 1 formed into a box shape as shown.

Female connectors 3a of male and female connectors 3 are provided on this motherboard 6 in the same row as shown in the figure, and male connectors 3b are installed in positions corresponding one-to-one to these female connectors 3a. The substrate 2 provided on the edge,
The board 2 is inserted and removed by being guided in the direction of arrow A in the figure by guide rails 7 provided on the opposite wall of the board rack 1.

As shown in the figure, a step portion 5h is provided on the opposing wall portion 1a of the board rack 1 on the motherboard 6 side.
1 to prevent incorrect insertion formed on the extension line of 7.
The regulating members 5 of each assembly are fixed in advance by welding, screwing, or the like. On the other hand, a notch 2h is formed in the vicinity of the male connector 3b of the board 2 to form a part for preventing erroneous insertion.

FIG. 11 is an explanatory diagram of the operation of the board insertion/removal structure shown in FIG.
As the substrate 2 moves in the direction, the board 2 is shown to be able to pass only if it is able to pass through the space sandwiched by the stepped portions 5h of the regulating member 5. FIG. 12 shows that the substrate 2 in FIG.
FIG.
, 2d are formed with notches 2h having different width dimensions, and when the board 2 is moved in the direction of the broken line arrow A, the regulating member 5 It is shown that the substrate 2 can pass only when it can pass through the space sandwiched by the stepped portions 5h.

As described above, the notches 2h are formed in the board 2 that is inserted into different connectors on the motherboard side.
By forming the connectors with different dimensions, it is possible to prevent incorrect insertion before inserting the connector, which prevents damage to the connector.Also, the connectors on the motherboard side and the connectors on the board 2 side are aligned vertically as shown in the figure. It can be provided in

Next, FIG. 13 is an external view of a modification of the second embodiment, in which notches 2h are formed at different positions on the edge of the substrate 2, and a stopper 4a inserted into the notches 2h This figure shows how the connector is provided on the motherboard 6 side to prevent incorrect insertion. For this purpose, the stopper 4a is fixed on the board rack 1 or the motherboard 6 so as to be substantially vertically disposed from different positions on the motherboard 6. In the above configuration as well, incorrect insertion can be similarly prevented.

(Description of the third embodiment) Subsequently, FIG.
1 is an external perspective view of the board insertion/removal structure of the third embodiment, showing only the lowest board 2 among the plurality of boards 2. FIG. In this figure, a motherboard 6 is fixed to the back wall side of a board rack 1 formed into a box shape as shown. The female connectors 3a of the male and female connectors 3 are provided on the motherboard 6 in the same row as shown in the figure, and the male connectors 3b are attached to the edges at positions corresponding one-to-one to the female connectors 3a. The installed board 2 is guided and moved in the direction of the arrow A in the figure by a guide rail 7 provided on the opposite wall of the board rack 1, so that the board 2 can be inserted or removed.

As shown in the figure, holes 19 are bored at different positions near the female connector 3a on the motherboard 6 side of the board rack 1 to prevent incorrect insertion. on the other hand,
A rod member 41 forming a member for preventing erroneous insertion is fixed near the male connector 3b on the board 2. Figure 15 is Figure 14
This is an explanatory diagram of the operation of the board insertion/removal structure, and the board 2 is indicated by arrow A.
As the bar member 41 moves in the direction, the substrate 2 can pass only when the rod member 41 can pass through the hole 19. In this way, incorrect insertion can be prevented.

Next, FIG. 16 is an external perspective view of a modification of the third embodiment. In this figure, the above-mentioned holes 19 are bored at different positions of the angle member 12, and the rod member 41
is inserted into the hole 19 of the angle member 12,
Efforts are made to prevent incorrect insertion. With this configuration, there is no need to drill holes 19 on the motherboard side, so the degree of freedom in designing the printed circuit pattern on the motherboard side can be improved.

FIG. 17 is an explanatory diagram of fixing the rod member 41. By press-fitting the rod member 41 into the notch of the substrate 2 as shown in the figure, the workability of assembly can be improved. By configuring as described above, it is possible to prevent the incorrectly inserted board 2 from being inserted into the board rack 1 before it is inserted all the way into the board rack 1, thereby preventing damage to the connector 3. can. Further, it is possible to provide a board insertion/removal structure that can mechanically and actively prevent incorrect insertion without requiring extra man-hours as in the conventional case.

In the above description, the board rack may be made of sheet metal or integrally molded with resin, and the connector 3 is provided only on the motherboard 6 side, and the electrode pattern portion to be inserted into the connector 3 is provided on the board 2 side. It may be formed integrally. Furthermore, the male-female relationship of the connector 3 may be reversed.

[0030]

[Effects of the Invention] As explained above, according to the present invention,
By preventing incorrectly inserted boards before inserting them all the way into the board rack, damage to the connector can be prevented, and extra man-hours are not required, and incorrect insertion can be prevented mechanically and proactively. It is possible to provide a board insertion/removal structure that can prevent this.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a board insertion/removal structure according to a first embodiment.

FIG. 2 is an explanatory diagram of the operation of the board insertion/removal structure of FIG. 1;

FIG. 3 is an explanatory diagram of the operation when there are four substrates 2 in FIG. 2;

FIG. 4 is a partial plan view of the substrate 2. FIG.

5 is an installation diagram showing a first modification of the method of fixing the stopper shown in FIG. 1; FIG.

6 is an installation diagram showing a second modification of the method of fixing the stopper shown in FIG. 1; FIG.

7 is a modification of the board insertion/removal structure of the first embodiment in FIG. 1; FIG.

FIG. 8 is another modification of the board insertion/removal structure of the first embodiment.

FIG. 9 is yet another modification of the board insertion/removal structure of the first embodiment.

FIG. 10 is an external perspective view of the board insertion/removal structure of the second embodiment.

11 is an explanatory diagram of the operation of the board insertion/removal structure of FIG. 10; FIG.

12 is an explanatory diagram of the operation when there are four substrates 2 in FIG. 10. FIG.

FIG. 13 is an external view of a modification of the second embodiment.

FIG. 14 is an external perspective view of the board insertion/removal structure of the third embodiment.

FIG. 15 is an explanatory diagram of the operation of the board insertion/removal structure of FIG. 14;

FIG. 16 is an external perspective view of a modification of the third embodiment.

17 is an explanatory diagram of fixing the rod member 41. FIG.

FIG. 18 is a perspective view of a main part of a conventional board insertion/removal structure provided with prevention of incorrect insertion/removal.

FIG. 19 is a conventional example of a board insertion/removal structure.

FIG. 20 is a conventional example of a board insertion/removal structure.

[Explanation of symbols]

1 Board rack 2　　　　Substrate 3 Connector 4 Stoppa 5 Regulation member 6 Motherboard 7 Guide rail

Claims (4)

[Claims] [Claim 1] A sub-connector is provided near the edge of a motherboard board provided with a plurality of main connectors, and is inserted and removed in a direction substantially perpendicular to the motherboard board, and is configured to prevent erroneous insertion into the main connector. A board insertion/removal structure comprising a plurality of boards to be inserted/removed, and a board rack provided with a guide means for fixing the motherboard board and guiding the board to be inserted/removed from the motherboard. . A board insertion/removal structure, characterized in that the erroneous insertion prevention portion or the erroneous insertion prevention member for preventing erroneous insertion is provided near the auxiliary connector or the main connector. 2. The erroneous insertion prevention member is provided in the substrate rack, and an opening is formed through which the substrates, each having the erroneous insertion prevention portions provided at different positions, are guided by the guide means. A board insertion/removal structure according to claim 1. 3. The erroneous insertion prevention member is provided on the substrate rack, and the substrates having the erroneous insertion prevention portions formed at different locations are guided by the guide means and then allowed to pass through. The board insertion/removal structure according to claim 1. 4. The erroneous insertion prevention part is a hole provided on the side of the board rack, and the board, in which the erroneous insertion prevention members are formed in different parts, is guided into the hole by the guide means. 2. The board insertion/removal structure according to claim 1, wherein the board is passed through.