JPH0810955Y2 - Unit board storage structure - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to a storage structure for a unit plate, and in particular, a unit plate storage structure suitable for stacking and fixing two unit plates in a case. Regarding

(B) Prior Art A conventional unit plate storage structure is, for example, the second
The structure was as shown in the figure.

In the figure, 11 is a storage case, 11a is an upper unit plate fixing claw, 12 is an upper unit plate, and 12a is a pin ASS'y.
(A) and 12b are unit plate fixing portions, 13 is a lower unit plate, 13a is a pin ASS'y (B), 13b is a pin through hole, and 13c is a unit plate fixing portion.

The structure for storing and fixing the two unit plates 12 and 13 in the storage case 11 will be described. The storage case 11 is provided with upper unit plate fixing pawls 11a at four locations near the bottom (upper side in the figure) of the case. Has been.

On the other hand, as the structure of the upper and lower unit plates 12 and 13 housed in the storage case 11, a pin ASS'y (A) 12a is attached to one end of the upper unit plate 12 on the lower surface side of the upper unit plate 12. Pin AS on one end of the lower unit plate 13.
S'y (B) 13a is pin AS from the upper surface side of the lower unit plate 13.
The S'y (B) pins are mounted so as to pass through the lower unit plate 13.

Further, at the other end of the lower unit plate 13, pin through holes 13b are formed at the same intervals as the pin arrangement of the pins ASS'y (A) attached to the upper unit plate 12.

Furthermore, the pin ASS'y of the upper and lower unit plates 12 and 13
Unit plate fixing portions 12b and 13c are provided at the central portions of two side faces orthogonal to the side faces to which (A) and (B) are attached.

Storage case 11 for the two unit plates 12 and 13 as described above
The upper unit plate 12 to the pin ASS'y
(A) Insert the pin of 12a into the storage case 11 in the direction of the arrow shown in the drawing so that the pin of the lower unit plate 12 is below the upper unit plate 12 so that it abuts against the upper unit plate fixing pawl 11a in the storage case 11.

The upper unit 12 is soldered to the two unit plate fixing portions 12b attached to the upper unit plate 12 with the upper unit plate 12 hitting the upper unit plate fixing tabs. Secure to storage case 11.

Next, with the lower unit 13 oriented such that the pins of the pin ASS'y (B) are below the lower unit plate 13,
The pin ASS'y (A) 12a of the upper unit plate 12 is passed through 13b, and the pin ASS 'attached to the upper unit plate 12 is attached.
The lower unit plate 13 is made to overlap the base of y (A) 12a.

By overlapping the upper unit plate 12 and the lower unit plate 13 as described above, the thickness of the bases of the pins ASS'y (A), (B) 12a, 13a attached to both unit plates 12, 13 can be adjusted. Positioning of both unit plates 12 and 13 in the storage case 11 in the vertical direction is performed.

And finally, the unit plate fixing portion 13 of the lower unit plate 13
Both unit plates 12 and 13 are fixed in the storage case 11 by soldering c to the inner surface of the storage case 11.

(C) Problems to be solved by the invention However, in the above-described conventional unit plate storage structure, as shown in FIG. 2, the storage case 11 is positioned in the vertical direction with respect to the unit surface of the upper unit plate 12. The upper unit plate fixing claws 11a are provided at four places, and the pin AS attached to the upper and lower unit plates 12 and 13
Since the lower unit plate 13 is vertically positioned only by the thickness of the base portions of the S'y (A) and (B) 12a and 13b, the upper unit plate 12 is soldered to the storage case 11 to solder the unit plates. When fixing the fixing portion 12b, since the upper unit plate 12 is fixed without being positioned in the horizontal direction,
Even when the lower unit plate 13 is attached to the storage case 11, there is an obstacle that the side surface of the lower unit plate 13 collides with the inner surface of the storage case 11. There was a drawback in terms of reliability.

Furthermore, the resin of the bases of the pins ASS'y (A) and (B) attached to the upper and lower unit plates 12 and 13 is melted and deformed by the lower unit 13 by the assembly process of the unit plate and the soldering process at the time of repairing. There was also a drawback that the vertical positioning of the was changed.

This invention was made in view of the above points,
The purpose is to eliminate the drawbacks of the conventional example, and to fix the upper unit plate in the storage case in the horizontal direction and the lower unit plate in the horizontal direction, and the lower unit plate in the vertical direction. Is provided to provide a two-stage stacked unit plate storage structure in which both upper and lower unit plates are positioned by the pawls of the storage case.

(D) Means for Solving the Problem An upper unit plate having electronic circuit functions and provided with pin terminals, a lower unit plate provided with pin through holes, and these 2
In the unit plate storage structure, one unit plate and a case in which the pin terminals provided on the upper unit plate penetrate through the pin through holes provided on the lower unit plate and are stored and fixed in a two-stage stack, In the case, an upper unit plate, a plurality of pawls for vertically positioning the lower unit plate with respect to the unit surface, and an inclined pawl for horizontally positioning the two unit plates are provided. In addition, it is configured to eliminate the positional deviation of the lower unit plate in the horizontal and vertical directions and to improve the reliability of fixing both unit plates to the case.

(E) Action According to the present invention, the unit plate including the upper unit plate on which the electronic circuit function is mounted, the lower unit plate, and the case for accommodating and fixing the two unit plates in two layers In the storage structure, a plurality of pawls for positioning the upper unit plate and the lower unit plate in a direction perpendicular to the unit surface in the case, and two pairs of two unit plates for preventing the horizontal displacement of the two unit plates. Since the inclined claws are provided, there is no deviation in the position of the upper unit plate when the upper unit plate is fixed to the case, so that the lower unit plate can be fixed to the case without difficulty.

(F) Embodiment An embodiment of the unit plate storage structure according to the present invention will be described with reference to FIG.

 FIG. 1 is an exploded perspective view of this device.

In the figure, 1 is a storage case, 1a is a horizontal fixing tab for a unit plate, 1b is a vertical fixing tab for an upper unit plate, 1c is a vertical fixing tab for a lower unit plate, 2 is an upper unit plate, and 2a is a pin. Terminals (A), 2b are unit fixing portions, 2c is a notch portion, 3 is a lower unit plate, 3a is a pin terminal (B), 3b is a pin through hole, and 3c is a unit fixing portion.

The structure for housing and fixing both upper and lower unit plates 2 and 3 in the storage case 1 will be described. As the structure of the storage case 1, two side surfaces facing each other near the bottom portion (upper side in the figure) of the storage case 1 are described. Two upper unit plate vertical fixing pawls 1b are provided on the inside of the housing, and the lower unit plate vertical fixing pawls 1c are provided near the opening of the storage case 1 for the upper unit plate vertical direction. A pair of shift pawls are provided on the same side surface as the fixed pawls 1b with the positions thereof shifted.

Further, between the upper unit plate vertical fixing pawl 1b attached to the side farther from the lower unit plate vertical fixing pawl 1c and the side surface of the storage case 1, the upper side of the bottom of the storage case 1 is provided. The horizontal fixing pawls 1a of the lower unit plates 2 and 3 are attached in such a shape that the width of the pawls becomes narrower toward the opening.

On the other hand, as the shape of the upper unit plate 2, pin terminals (A) 2a are arranged and attached to one end of the upper unit plate 2, and the ends on the side to which the pin terminals (A) 2a are attached face each other. It has a shape with a cut corner compared to the side edge.

Also, on both side surfaces orthogonal to the side surface to which the pin terminal (A) 2a is attached, the lower unit vertical fixing pawls 1c provided on the storage case 1 do not catch when the storage case 1 is stored. A pair of notches 2c are provided on the inside.

Further, a pair of unit fixing portions 2b is provided between the cutout portion 2c and the side surface to which the pin terminal (A) 2a is attached.

As the shape of the lower unit plate 3, pin terminals (B) 3a are arranged and attached to one end of the lower unit plate 3, and the pin terminal of the upper unit plate 2 is attached to the end opposite to this end. A pin through hole 3b into which (A) 2a is inserted and penetrated is opened corresponding to the pin arrangement of the pin terminal (A) 2a of the upper unit plate 2.

Further, for fixing the lower unit plate 3 and the storage case 1 to the central portion of both side surfaces orthogonal to the side surface on which the pin terminals (B) 3a and the pin through holes 3b of the lower unit plate 3 are provided, One unit fixing portion 3c is provided.

In order to store and fix the upper and lower unit plates 2 and 3 in the storage case 1 having the above structure, first, the pin terminals (A) 2a attached to the upper unit plate 2 are stored in the storage case 1
Of the storage case 1 such that the side face to which the pin terminals (A) 2a are attached faces the side of the storage case 1 where the unit plate horizontal fixing pawl 1a is provided. Store it in the direction of the arrow.

The upper unit plate 2 stored in the storage case 1 is inserted into the bottom portion (upward direction in the figure) of the storage case 1 until it hits the upper unit plate vertical fixing pawls 1b at four locations.

At this time, the notch 2c attached to the upper unit plate 2 does not come into contact with the vertically fixing pawl 1c of the lower unit plate.

When the upper unit plate 2 is inserted into the storage case 1 as described above, a portion other than the pin terminals (A) 2a on the side of the upper unit plate 2 to which the pin terminals (A) 2a are attached is provided in the storage case 1. Installed unit plate Horizontal fixing pawl 1a
Thus, the upper unit plate 2 is pushed in the horizontal direction (the direction in which the unit plate horizontal direction fixing pawl 1a is not attached).

Therefore, the upper unit plate 2 is positioned in the storage case 1 in the vertical direction by the upper unit plate vertical fixing pawl 1b, and in the horizontal direction by the unit plate horizontal fixing pawl 1a.

After the upper unit plate 2 is housed in the storage case 1, the upper unit plate 2 is fixed by soldering the unit fixing portions 2b provided at two places of the upper unit plate 2 and the inner side surface of the storage case 1. finish.

Next, with the lower unit plate 3 facing downward with the pin terminals (B) 3a attached, the side face with the pin through holes 3b is further attached to the pin terminals (A) 2a of the upper unit plate 2. Insert it into the storage case 1 with the side marked with as indicated by the arrow.

The lower unit plate 3 is a storage case 1 in which the pins of the pin terminals (A) 2a of the upper unit plate 2 are inserted into the pin through holes 3b.
The upper unit plate 2 is inserted so as to be superposed on the upper unit plate 2, and the vertical position is determined by hitting two lower unit plate vertical fixing pawls 1c provided on the storage case 1.

Further, a tab for horizontally fixing the unit plate provided on the storage case 1 on the side surface of the lower unit plate 3 on the side of the pin through hole 3b.
The lower unit plate 3 is pushed by the 1a in the horizontal direction (the direction in which the unit plate horizontal direction fixing pawl 1a is not attached).

Therefore, the lower unit plate 3 should be positioned in the storage case 1 in the vertical direction by the lower unit plate vertical fixing pawl 1c, and in the horizontal direction by the unit plate horizontal fixing pawl 1a. become.

The upper and lower unit plates 2 and 3 are positioned horizontally in such a manner that the unit plate horizontal fixing pawl 1a is located at the center of the storage case 1 from the opening surface of the storage case 1 toward the bottom (upper side in the figure). Since it has a taper shape with a thickness in the direction of the part, when the upper and lower unit plates 2 and 3 are inserted into the storage case 1, the side surface of the unit naturally receives the stress applied in the horizontal direction for positioning. There will be no vertical or horizontal misalignment.

Lower unit plate 3 positioned in storage case 1
The unit fixing portion 3c and the inner side surface of the storage case 1 are soldered to complete the fixing of the lower unit plate 3.

With the unit storage structure as described above, the bases of the pins ASS′y attached to the upper and lower unit plates 2 and 3 for determining the vertical position of the lower unit plate 3 are unnecessary,
Further, the upper and lower unit plates 2 and 3 can be reliably positioned in the horizontal direction, and it is possible to prevent the reliability of the unit plate from being lowered due to the horizontal positional deviation caused by the upper and lower unit plates 2 and 3 being superposed. become.

(G) Effect of the Invention According to the unit plate storage structure according to the present invention, the unit plate horizontal direction for positioning the unit plates in the horizontal direction when accommodating the two unit plates in the storage case in an overlapping manner. Since it has a structure in which the fixing pawl and the vertical fixing pawl of the unit plate on the lower side are provided, by ensuring the horizontal positioning of the unit plate on the upper side,
The upper unit plate and the pin terminals are stacked together so that the lower unit plate, which is housed in the case, can be positioned in the horizontal direction with certainty, so the lower unit plate does not hit the case unnecessarily. It has the effect of improving reliability.

In addition, since the pin ASS'y and the like are not required, the cost can be prevented, and deterioration of the resin due to soldering when fixing the unit can be prevented, which is also effective in this respect.

In addition, it has excellent features such as simple structure and easy implementation because it can be configured at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a unit plate storage structure according to the present invention. FIG. 2 is an exploded perspective view of a conventional example. Description of main symbols 1: Storage case 1a: Unit plate horizontal fixing claw 1b: Upper unit plate vertical fixing claw 1c: Lower unit plate vertical fixing claw 2: Upper unit plate 2a: Pin terminal (A ) 2b: Unit fixing part 2c: Notch part 3: Lower unit plate 3a: Pin terminal (B) 3b: Pin through hole 3c: Unit fixing part

Claims (1)

[Scope of utility model registration request] 1. An upper unit plate having an electronic circuit function and provided with pin terminals, a lower unit plate provided with pin through holes, and a pin terminal provided with these two unit plates on the upper unit plate. In a unit plate housing structure comprising a case that penetrates through a pin through hole provided in the lower unit plate and is housed and fixed in a two-stage stack, an upper unit plate and a lower unit plate are housed in the case. A plurality of pawls for positioning in the vertical direction with respect to the unit surface and an inclined pawl for positioning the two unit plates in the horizontal direction are provided to prevent the upper and lower unit plates from being displaced in the horizontal and vertical directions. A unit board storage structure characterized in that it is configured to improve the reliability of fixing both unit boards to the case.