JP2953829B2 - Circuit board and its attaching / detaching mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit board to which a plurality of circuit boards are mounted via a connector and which is attached to and detached from a box in which the circuit boards are stored, and a mechanism for attaching and detaching the circuit boards.

[0002]

2. Description of the Related Art Usually, various electric parts, circuit boards, and the like are mounted on a control panel of an apparatus. As the size of the electric components has been reduced, the number of electric components mounted on the circuit board has increased. In particular, almost all circuits for processing signals other than the power supply circuit have been mounted on a single circuit board. In addition, a plurality of circuit boards are housed in one box without being scattered and mounted in the board. In addition, since the circuit board may be detached from the box at the time of maintenance or failure, a mechanism for attaching and detaching the circuit board is provided on the box or the circuit board.

FIG. 10 is a side view of a box housing a circuit board showing an example of a conventional circuit board attaching / detaching mechanism. Conventionally, this type of circuit board attaching / detaching mechanism is, for example, as shown in FIG. 10, a handle plate 1a on a circuit board 5 to which a connector 4 mounted on a connector 3 of a back plate 2 is attached at one end.
The handle plate 5 is attached to the circuit board 5 with fixing pins 7 and has protrusions 8 extending outward from both ends.

When the circuit board is mounted using the circuit board attaching / detaching mechanism, the grip plate 1a is grasped by hand and the circuit board 5 is pressed. This allows the circuit board 5
Moves by being guided by the groove formed inside the side plate 6,
The connectors 3 and 4 are inserted. Also, the case of mounting to be of such a robot is pushing by inserting the protruding portion 8 into the hole of the holding portion 9a to move the arm members 9 of the robot.

On the other hand, when the circuit board is pulled out, the locking portion on the side plate is released, and the handle plate 1a is gripped and pulled out. Further, in the case of a robot, the holder 9a is moved in the direction indicated by the arrow H, the protrusion 8 of the handle plate 1a is inserted into a hole of the holder 9a, and the circuit board 5 is pulled out after holding.

As described above, the circuit board 5 is simply and inexpensively attached with the handle plate 1a. Therefore, it has been used for many circuit boards.

[0007]

However, in the above-mentioned conventional circuit board attaching / detaching mechanism, apart from a robot, when the hand is pulled out, the distance between adjacent circuit boards is small, and it is difficult for a finger to enter. There is a drawback that no force is required and it is difficult to easily extract the circuit board. In addition, there is a problem that a finger accidentally touches a conductive portion of a circuit board and causes electrostatic breakdown of an electric component such as an LSI mounted on the circuit board.

An object of the present invention is to solve such a problem.
An object of the present invention is to provide a circuit board attaching / detaching mechanism capable of easily attaching / detaching a mounted electric component without electrostatic damage.

[0009]

According to the present invention, there is provided a circuit board in which a plurality of second connectors corresponding to one of male and female first connectors attached to one end of the circuit board are arranged in one direction. One side end of a circuit board which is attached to and detached from a box body including a face plate and a pair of side plates on which a guide means for guiding insertion of the circuit board is formed while being opposed to the rear plate and facing each other. A handle which has a protruding portion which is further extended and which is rotatably mounted via a circuit board and a pin at a predetermined distance from one side end and which has a springy branch derived from the other side end; The plate has a structure in which the branch is locked to the side plate, and the handle plate is provided with a protrusion facing the direction opposite to the protrusion on the branch opposite to the protrusion. And rotate the handle plate to protrude from one end By pulling out the protrusion with the end of the side plate, and by inserting the two protrusions into the holding part of the arm from both sides and moving the arm, it can be pulled out of the box with the handle plate. It is characterized by being able to. Also, the circuit board attaching / detaching mechanism of the present invention includes a back plate on which a plurality of second connectors corresponding to the first connector of either male or female attached to one end of the circuit board are arranged in one direction. In a mechanism for attaching and detaching a circuit board to and from a box constituted by a pair of side plates that are opposed to each other on a back plate and formed with guide means for guiding insertion of the circuit board inside, the circuit board has one side. It has a protruding portion extending from one end, and is formed at a predetermined interval from this one side end so as to be rotatably mounted via a circuit board and a pin, and has a spring-like branch derived from the other end. A handle plate is provided, the branch portion has a structure to be locked to the side plate, and the handle plate has a protruding portion facing a direction opposite to the protruding portion on a branch portion opposite to the protruding portion. It is provided to rotate the handle plate The protrusion protruding from the end is brought into contact with the end of the side plate, and the two protrusions are inserted into the holding portion of the arm body from both sides to move the arm body so that the circuit board together with the handle plate is moved. It is characterized by being extracted. The mechanism for locking the branch portion and the side plate has irregularities, and it is desirable that the mechanism be fitted with the irregularities.
The handle plate is preferably made of metal or resin.

[0010]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a box housing a circuit board, showing one embodiment of a circuit board attaching / detaching mechanism of the present invention.
As shown in FIG. 1, this circuit board attaching / detaching mechanism includes a plurality of second connectors 3 corresponding to one of male and female first connectors 4 attached to one end of each of a plurality of circuit boards 5. A box body composed of a back plate 2 arranged side by side in a direction, and a pair of side plates 6 formed on the back plate 2 so as to face each other and guide the insertion of the circuit board 5 inside. Has a protruding portion 8 extending from one side end, and is rotatably mounted at a predetermined distance from the one side end via the circuit board 5 and the pin 7a, and has a spring property derived from the other end. That is, the conductive handle plate 1 on which the branch portion 10 is formed is provided.

A branch portion 10 formed by notching the handle plate 1 is formed with a convex portion 11 which is fitted into a concave portion 12 at the top end of the side plate 6, and the convex portion 11 and the concave portion 12 form a circuit board. 5 constitutes a locking mechanism for prevention of detachment. Further, since the base of the branch portion 10 has an arc shape, it is characterized by having a spring property. The handle plate 1 is made of a resin material, but it is preferable to use a conductive metal or a resin body formed with a conductive coating as necessary so as to release static electricity accumulated in a finger. .

FIG. 2 is a side view of the box for explaining the procedure for inserting and mounting the circuit board in the box. Next, a procedure for mounting the circuit board by the circuit board attaching / detaching mechanism will be described. First, as shown in FIG. 2, the handle plate 1 is gripped and pushed in the direction shown by the arrow B. As a result, the circuit board 5 slides in the guide groove of the side plate 6 and is inserted into the box. When further pressed, the branch 10 bends once, the circuit board 5 is inserted, and when the connection between the connector 4 and the connector 3 is completed, the branch 10 springs back, the projection 11 fits into the recess 12, and the circuit board 5 is removed. Lock.

FIGS. 3 to 6 are side views of the box for explaining the procedure for extracting the circuit board from the box. Next, a procedure for detaching the circuit board by the circuit board attaching / detaching mechanism will be described. First, as shown in FIG. 3, the branch 10 is pushed in the direction shown by the arrow C, and the protrusion 11 is removed from the recess 12.

Next, as shown in FIG. 4, the handle plate 1 is rotated about the pin 7a in the direction shown by the arrow D. As a result, the projection 8 comes into contact with the top end 13 of the side plate 6,
Leverage action occurs. Next, as shown in FIG. 5, when the handle plate 1 is further rotated, the connector 4 of the circuit board 5 is detached from the connector 3, and the circuit board 5 starts to come out of the box body. Be vertical. Next, as shown in FIG. 6, the handle plate 1 is pulled in the direction shown by the arrow E, and the circuit board 5 is extracted from the box.

FIGS. 7 to 9 are side views of the box for explaining the operation of the robot when the circuit board is detached from the box. Next, an attaching / detaching operation of the circuit board attaching / detaching mechanism by the robot will be described. First, when the circuit board is mounted on a box, as shown in FIG.
is moved in the direction of arrow A, the protrusion 8 of the handle plate 1 is inserted into the hole of one holding portion 9a, the branch 10 is pushed by the other holding portion 9a, and the protrusion 11 is removed from the recess 12. Thereby, the locking between the side plate 6 and the handle plate 1 is released. Next, the arm body is pushed in the direction of arrow F, and the circuit board 5 slides in the guide groove of the side plate 6, is inserted into the box, and the connector 3 on the back plate is pressed.
And the connector 4 of the circuit board 5 are connected.

When pulling out the circuit board from the box, first, as shown in FIG. 8, the holding portion 9a of the spread arm 9 is moved in the direction of arrow A, and
Insert the protruding portion 8 of the handle plate 1 into the hole a of FIG.
a holds down the branch 10. As a result, the holding portion a securely holds the handle plate 1. Next, as shown in FIG. 9, the handle plate 1 held by the holding portion 9a is moved by moving the arm body 9 in the direction of arrow G so that the connector 4 of the circuit board 5 is moved.
Is detached from the connector 3, and the circuit board 5 is pulled out from the box.

As described above, the attaching / detaching mechanism of the circuit board includes:
There is an advantage that it can be applied both manually and by automatic operation such as a robot.

[0019]

As described above, according to the present invention, a handle plate rotatably mounted via pins is provided on the opposite side of the circuit board to which the connector is mounted, and an end near the pin side of the handle plate. When the circuit board mounted in the box body is pulled out by forming a projecting portion traveling to the side and a branch portion having a spring property derived from the side surface on the other end side, the projecting portion is connected to the box body. If the handle plate is rotated around the pin by contacting the top end of the side plate, the pull-out force is enlarged by leverage, so that the circuit board can be pulled out of the box with a small force. This has the effect. Also, by making the handle plate conductive, even if the carelessly touches the conductive part of the circuit board, the static electricity accumulated in the finger is released through the handle plate, so that the LSI mounted on the circuit board can be removed. There is also an effect that it is not destroyed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a box housing a circuit board, showing one embodiment of a circuit board attaching / detaching mechanism of the present invention.

FIG. 2 is a side view of the box for explaining a procedure for inserting and mounting a circuit board in the box.

FIG. 3 is a side view of the box for explaining a procedure for extracting a circuit board from the box.

FIG. 4 is a side view of the box for explaining a procedure for extracting a circuit board from the box.

FIG. 5 is a side view of the box for explaining a procedure for extracting a circuit board from the box.

FIG. 6 is a side view of the box for explaining a procedure for extracting a circuit board from the box.

FIG. 7 is a side view of the box for explaining the operation of the robot in attaching and detaching the circuit board from the box.

FIG. 8 is a side view of the box for explaining the operation of the robot when the circuit board is detached from the box.

FIG. 9 is a side view of the box for explaining the operation of the robot in attaching and detaching the circuit board from the box.

FIG. 10 is a side view of a box housing a circuit board, showing an example of a conventional circuit board attaching / detaching mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Handle plate 2 Back plate 3, 4 Connector 5 Circuit board 6 Side plate 7, 7a Pin 8 Projection part 9 Arm body 9a Holding part 10 Branch part 11 Convex part 12 Concave part

Continuing from the front page (72) Inventor Makoto Kuwahara 5-7-1 Shiba, Minato-ku, Tokyo Within NEC Corporation (72) Inventor Kenichi Hatakeyama 1-Karagai, Ichinoseki-shi, Iwate Tohoku NEC Corporation (72) Inventor Yuji Sato 1 Togoku, NEC, Ichinoseki-city, Iwate Prefecture (56) References: Shokai Sho 55-111394 (JP, U) (58) Field surveyed (Int. Cl. ⁶⁾ , DB name) H05K 7/14

Claims (5)

(57) [Claims] 1. A back plate in which a plurality of second connectors corresponding to either male or female first connectors attached to one end of a circuit board are arranged in one direction, and a screen facing the rear plate with each other. In a mechanism for attaching and detaching a circuit board to and from a box constituted by a pair of side plates on which guide means for guiding insertion of the circuit board are formed inside.
The circuit board has a protruding portion that protrudes from one side end, and a spring that is rotatably attached to the circuit board via a pin at a predetermined distance from the one side end and is derived from the other side end. A handle plate on which a branch portion having a characteristic is formed, the branch portion has a structure to be locked to the side plate, and the handle plate has a branch opposite to the protrusion. A protrusion is provided in the portion in a direction opposite to the protrusion,
By rotating the handle plate so that the protrusion protruding from the one side end abuts on the end of the side plate, the two protrusions are inserted into the holding portion of the arm body from both sides and the arm is inserted. A circuit board attaching / detaching mechanism, wherein the circuit board is extracted together with the handle plate by moving a body. 2. The circuit board attaching / detaching mechanism according to claim 1, wherein the mechanism for locking the branch portion and the side plate has an unevenness, and the mechanism fits the unevenness. Wherein detaching mechanism of the circuit board according to claim 1 or 2, wherein said grip plate is made of metal. 4. A detaching mechanism of the circuit board according to claim 1 or 2, wherein said grip plate is made of a resin material. 5. A back plate in which a plurality of second connectors corresponding to one of the male and female first connectors attached to one end of the circuit board are arranged in one direction, and a screen facing the rear plate with each other. A circuit board that is attached to and detached from a box body formed of a pair of side plates on which a guide means for guiding insertion of the circuit board is formed. A handle plate which is rotatably mounted via a pin at a predetermined distance from a side end via the circuit board and a pin and has a spring-like branch derived from the other end formed on the side; The handle has a structure to be locked to a face plate, and the handle plate is provided with a protrusion facing the direction opposite to the protrusion on the branch portion opposite to the protrusion. Rotate the plate and project from the one end By pulling the two parts into contact with the end of the side plate, and by inserting the two protrusions into the holding part of the arm body from both sides and moving the arm body, it is pulled out of the box together with the handle plate. A circuit board characterized by being able to.