JPH0644143Y2 - Electronic circuit package attachment / detachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial Application Field) This invention is used in, for example, an electronic exchange and the like, and is used for attaching and detaching an electronic circuit package which is operated when the mounted electronic circuit package is removed. Regarding the device.

(Prior Art) FIG. 7 shows a conventional electronic circuit package attaching / detaching device. A back wiring board 73 is provided behind the shelves (circuit mounting shelves) 71 and 72, and an electronic circuit package is provided between the shelves 71 and 72.
74 is to be inserted. . The back wiring board 73 is provided with a plurality of male connectors 75, and the female connectors 76 provided in the electronic circuit package 74 are connected to these male connectors 75.

Further, eject levers 77 and 78 are rotatably provided at both ends of the side surface of the electronic circuit package 74, and when the electronic circuit package 74 is connected to the back wiring board 73, the eject levers 77 and 78 are rotatable. The base ends of 77 and 78 are located in the grooves 71a and 72a of the shelves 71 and 72,
The tip portion is in contact with the side surface of the electronic circuit package 74.

In this state, when the electronic circuit package 74 is to be removed from the back wiring board 73, the tip ends of the eject levers 77 and 78 are rotated in the direction away from the side surface of the electronic circuit package 74 as shown by the arrow in the figure. . Then, the eject levers 77 and 78 are rotated with their base ends as fulcrums, and the electronic circuit package 74 is removed from the back wiring board 73. According to such a mounting method, the removal force of the electronic circuit package 74 can be reduced.

In addition, the electronic circuit package 74 is an electronic circuit package.
A switch 79 is provided which is operated when the 74 is inserted into and removed from the back wiring board 73 and prevents malfunction of a system such as an electronic exchange.

FIG. 8 is a circuit diagram schematically showing the relationship between the electronic circuit package 74 and the back wiring board. In this circuit, a digital signal is transmitted through a common bus 81 connected to a microprocessor (not shown). The common bus 81 is housed in the back wiring board 73, and various types of electronic circuit packages 74 are connected to the common bus 81.

By the way, if a failure occurs in the electronic circuit package,
Due to the public nature of the switch, it is necessary to replace a defective electronic circuit package with a normal package without turning off the power of the device. However, when the electronic circuit package is removed and inserted, a voltage change occurs at the contact portion between the male connector 75 of the back wiring board 73 shown in FIG. 8 and the female connector 76 of the electronic circuit package 74, An abnormal signal may be mixed in the common bus 81, and the electronic exchange system may be brought down. Therefore, when the electronic circuit package 74 is inserted into and removed from the back wiring board 73, the switch 79 is switched to the state shown by the solid line in FIG. 8 (hereinafter, this state is referred to as the recovery state), and the tristate -The buffer 82 is set to a high impedance state to prevent malfunction.

(Problems to be solved by the invention) However, even if the switch is provided as described above, it is a maintenance person who operates the switch to insert and remove the electronic circuit package. For this reason, for example, after mounting the electronic circuit package, the switch may be left in the restored state or the electronic circuit package may be pulled out without restoring the switch, and it is possible to reliably prevent system abnormalities and system down. Was difficult.

This invention solves the problem regarding the operation mistake by performing the switch for setting the state of the electronic circuit separately from the work of inserting and removing the electronic circuit package. It is intended to provide an attachment / detachment device for an electronic circuit package that can be reliably operated in association with removal.

[Structure of the Invention] (Means for Solving the Problems) The present invention is to connect to a first contactor and a power supply pattern which are provided at one end of the electronic circuit package in the insertion direction and connected to a ground pattern of the electronic circuit package. The second contactor and the third contactor connected to the signal pattern, and when inserting the electronic circuit package into the mounting target device, the first and second contactors are placed before the third contactor. The contactor is connected to the contactor provided in the mounted device, and when the electronic circuit package is removed from the mounted device, the third contactor is provided with the third contactor before the second and first contactors. A connector that is separated from the contact provided on the second contact and a third contact that is rotatably provided at the other end of the electronic circuit package in the insertion direction and is inserted into the mounted device. Contact the mounted device Then, the electronic circuit package is rotated in the first direction, and when the electronic circuit package is removed from the mounted device, the third direction is in the state where the third contact is in contact with the mounted device. Operation means that is rotated in the opposite second direction, and switch means that is provided in the electronic circuit package and that sets the state of the electronic circuit connected to the signal pattern in accordance with the rotation operation of the operation means. It consists of and.

(Operation) In this invention, the first contactor provided in the connector of the electronic circuit package is connected to the ground pattern of the electronic circuit package, the second contactor is connected to the power source pattern, and the third contactor is connected. When connecting to the signal pattern and inserting the electronic circuit package into the mounted device, first, the first and second contactors are connected to the contactors provided in the mounted device to stabilize the power supply in the electronic circuit package. After that, the third contactor connected to the signal pattern is connected to the contactor provided on the mounted device. After that, since the switch means is operated and the state of the electronic circuit is set in accordance with the rotation of the operation means, it is possible to prevent the voltage fluctuation on the mounted device side.

Further, when the electronic circuit package is removed from the device to be mounted, the operating means is first rotated, contrary to the above, the switch means is operated accordingly, and the state of the electronic circuit is switched and set. Thereafter, the third contactor among the first to third contactors provided on the connector is separated from the contactor provided on the mounted device, and then the first and second contactors are separated from each other. To be done. Therefore, even when the electronic circuit package is pulled out from the mounted device, the voltage fluctuation on the mounted device side can be prevented.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, eject levers 12 and 13 as operating means are provided at both ends of a side surface of an electronic circuit package 11 in which an electronic circuit is arranged. These eject levers 12 and 13 have an electronic circuit package in the middle part.
11 is rotatably provided. The base end portions of these eject levers 12 and 13 can be engaged with the groove portions 14a and 15a of the shelves 14 and 15, respectively. Also, the eject lever 13
The electronic circuit package 11 located in the vicinity of is provided with a switch 16 that is operated when the electronic circuit package 11 is inserted and removed to set the state of the tri-state buffer provided in the electronic circuit package 11. The switch 16 is composed of, for example, a non-lock push button switch, and when the operator 16a is pushed in, the switch 16 is brought into an operating state (a state indicated by a chain double-dashed line in FIG. 8) and the operating force of the operator 16a is changed. When released, the operating element 16a is automatically returned by a spring (not shown) provided inside the switch 16 to be in a recovery state.

On the other hand, between the middle portion and the tip end portion of the eject lever 13, there is provided a pressing portion 13a that comes into contact with the tip end portion of the operator 16a of the switch 16 and presses and drives the operator 16a.

Further, an engaging member 17 is rotatably provided between the pressing portion 13a of the eject lever 13 and the tip end portion thereof.
That is, the base end portion of the engagement member 17 is rotatably provided on the eject lever 16 by, for example, a spring pin 18, and a coil spring 19 is fitted and inserted in the spring pin 18. Therefore, the engaging member 17 is biased by the spring 19 in the direction of the arrow a in the figure. This engaging member
17 is in contact with a locking portion 13b provided on the eject lever 13, and the rotation position is defined by the locking portion 13b.

Further, an engaging portion 17a is provided at the tip of the engaging member 17, and the engaging portion 17a is the operating element 16a of the switch 16.
The tongue portion 16b extending in the vicinity can be engaged with an engaging opening 16c. The tongue portion 16b is formed integrally with the cover 16d of the switch 16.

In the above-described configuration, the operation element 16a of the switch 16 whose operation will be described is projected from the switch 16 and the switch state is restored when the electronic circuit package 11 is taken out from the shelves 14 and 15. In this state, when the electronic circuit package 11 is inserted between the shelves 14 and 15, the base end of the eject lever 13 is
As shown in FIG. 1, it is inserted into the groove 15a of the shelf 15. At this time, the base end portion of the eject lever 12 is also inserted into the groove portion 14a of the shelf 14 in the same manner.

When the electronic circuit package 11 is pushed in in this state,
The eject lever 13 is rotated in the direction of the arrow a (first direction) in the drawing with its base end as a fulcrum, and the pressing portion 13a is brought into contact with the operating element 16a of the switch 16. Then, when the electronic circuit package 11 is further pushed, the female connector (not shown) of the electronic circuit package 11 and the male connector of the back wiring board are connected, and the eject lever 13
The operator 16a of the switch 16 is pushed by the pushing portion 13a in accordance with the rotation of the switch, and the switch state becomes the operating state. Further, as shown in FIG. 2, the engaging portion 17a of the engaging member 17 provided on the eject lever 13 is engaged with the engaging opening 16c of the switch 16, the eject lever 13 is locked, and the switch 16 is locked.
The operating state of is retained.

When removing the electronic circuit package 11 from the inserted state as described above, the tip portions of the eject levers 12 and 13 are moved to the second position.
It rotates in the direction of arrow b (second direction) shown in the figure. Then, the engagement state between the engagement portion 17a of the engagement member 17 and the engagement opening 16c is released, and the pressing force of the pressing portion 13a on the operating element 16a is released. Therefore, the switch 16 is brought into the recovery state, and the tri-state switch (not shown) of the electronic circuit package 11 is
The buffer is in a high impedance state. In this state, when the eject levers 12 and 13 are further rotated, the electronic circuit package 11 is pulled out, the female connector of the electronic circuit package 11 is removed from the male connector of the back wiring board, and the electronic circuit package 11 is moved to the shelf 14, You can take out from between 15 mutual.

FIG. 3 shows an example of a female connector provided on the electronic circuit package 11 and a male connector provided on the back wiring board.

Of the contacts 31a to 31d of the female connector 31 provided in the electronic circuit package 11, the contact 31 to which the power supply pattern is connected.
b (second contact), contact 3 to which the ground pattern is connected
1a (first contactor) is set so as to sequentially protrude from the contactors 31c and 31d (third contactor) to which the signal pattern is connected. When connecting the electronic circuit package 11 to the back wiring board 32 as a device to be mounted, the contacts 32a, 32b of the male connector 33 on the back wiring board 32 are sequentially contacted with the contacts 31a, 31b, The contacts 31c, 31d are contacted with the contacts 32c, 32d in a stable state of the power source in the circuit package 11, and thereafter, the switch 16 is operated so that the switch 16 is activated.
Set 16 operation timings.

With such a configuration, when the electronic circuit package 11 is removed from the back wiring board 32, first, the switch 16 is turned off, and thereafter, the contacts 31c and 31d to which the signal pattern is connected are the contacts 31c and 31d. The contacts 31b and 31a are separated from the 33c and 33d, and the contacts 31b and 31a are sequentially separated from each other, so that a malfunction of the system can be reliably prevented when the electronic circuit package 11 is inserted and removed.

According to the above-described embodiment, the electronic circuit package 11 is provided with the switch 16 that is operated in conjunction with the operation of the eject lever 13, and when the electronic circuit package 11 is inserted into and removed from the back wiring board 32, the eject lever 13
The switch 16 is set to the operating state or the recovery state by the pressing portion 13a. Therefore, when the electronic circuit package 11 is inserted or removed, the switch 16 can be reliably set to the operating state or the restored state.
It is possible to prevent system abnormalities and system down.

Further, in a state where the eject lever 13 is provided with the engaging member 17 and the electronic circuit package 11 is connected to the back wiring board, the engaging portion 17a of the engaging member 17 engages with the engaging opening 16c of the switch 16. , The ON state of the switch 16 is maintained. Therefore, it is possible to prevent an erroneous operation such as erroneously turning off the switch 16 in a state where the electronic circuit package 11 is connected to the back wiring board 32.

Next, another embodiment of the present invention will be described. The same parts as those in FIGS. 1 and 2 are designated by the same reference numerals and the description thereof will be omitted.

4 to 6, a pressing portion 41a for pressing the operation element 16a of the switch 16 is provided in the middle portion of the eject lever 41, and between the pressing portion 41a and the tip end portion of the eject lever 41. A substantially crank-shaped engaging member 42 is rotatably provided. That is, the middle portion of the engaging member 42,
For example, a spring pin 43 is provided rotatably on the eject lever 41, and a coil spring 44 is provided on the spring pin 43. Therefore, the engagement member 42 is biased by the spring 44 in the direction of arrow a in the figure. An operating portion 42a is provided at a base end portion of the engaging member 42, and a tip end of the operating portion 42a is projected from an opening portion 41a provided in the eject lever 41. Further, the engaging member 42
An engaging portion 42b capable of engaging with the engaging opening 16c of the switch 16 is provided at the tip of the.

In the above configuration, as shown in FIG. 6, when the electronic circuit package 11 is connected to the back wiring board, the operator 16a of the switch 16 is pressed by the pressing portion 41b of the eject lever 41, and the switch is It is operating. In this state, the engaging member 42
The engaging portion 42b is engaged with the engaging port 16c of the switch 16 so that the operating state of the switch 16 is maintained.

In the above state, when removing the electronic circuit package 11 from the back wiring board, first, the engaging member
The operating portion 42a of 42 is pushed against the urging force of the spring 44, and the engaging member 42 is rotated in the direction of the arrow b in the drawing to release the engaged state between the engaging portion 42b and the engaging port 16c. In this state, when the tip end portion of the eject lever 41 is rotated in the direction of the arrow b in the figure, the switch 16 is in the recovery state, and when it is further rotated,
The electronic circuit package 41 is removed from the back wiring board.

According to the above-mentioned embodiment, it is possible to obtain the same effect as the above-mentioned embodiment.

It should be noted that the push button switch is used as the switch 16 in both of the above-described embodiments, but the switch is not limited to the push button switch and may be any switch that is interlocked with the eject lever.

In addition, various modifications can be made without departing from the scope of the invention.

[Advantages of the Invention] As described above in detail, according to the present invention, when the electronic circuit package is inserted into and removed from the mounted device, the first to the first contacts provided on the contactor of the mounted device and the connector of the electronic circuit package. The contact timing with the contact of No. 3 is shifted, and the switch means is operated in accordance with the rotation of the operating means to set the state of the electronic circuit. Therefore, it is possible to prevent an erroneous operation of the switch means, to surely suppress the voltage fluctuation of the mounted device to which the electronic circuit package is mounted, and to prevent the malfunction of the system. Can be provided.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a side sectional view of an essential part, and FIG. 2 is a perspective view of the essential part.
FIG. 3 shows the structure of the connector, and a side sectional view of the main part, FIGS. 4 to 6 show other embodiments of the present invention, and FIG. 4 is a side view of the main part. 5 and FIG. 5 are partially cutaway top views, FIG. 6 is a side sectional view of essential parts, FIG. 7 is a perspective view showing the structure of a conventional electronic circuit package attaching / detaching device, and FIG. 8 is a switch operation. FIG. 3 is a circuit configuration diagram of a main part shown for explaining FIG. 11 …… Electronic circuit package, 12,13,41 …… Eject lever, 13a, 41b …… Pressing part, 14,15 …… Shelf, 16
...... Switch, 16a ...... Operator, 16c ...... Engagement port, 17, 42
...... Engagement members, 17a, 42b ...... Engagement parts.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication H01R 13/639 Z 9173-5E 13/703 9173-5E H04Q 1/02 9076-5K H05K 7/14 T 7301-4E (72) Inventor Shizuo Ueno 1890 Kisumi Sumiyoshi-cho, Nakahara-ku, Kawasaki-shi, Kanagawa Fujisoku Co., Ltd. (56) References: 63-20488 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A first contactor provided at one end of an electronic circuit package in the insertion direction and connected to a ground pattern of the electronic circuit package, a second contactor connected to a power supply pattern, and a signal pattern. And a third contactor, wherein the first and second contactors are provided in the mounted device prior to the third contactor when the electronic circuit package is inserted into the mounted device. A connector that is connected to the third contactor and is separated from the contactor provided in the mounted device before the second and first contactors when the electronic circuit package is removed from the mounted device. The electronic circuit package is rotatably provided at the other end in the insertion direction, and when the electronic circuit package is inserted into the mounted device, the third contact is brought into contact with the mounted device, and then the first contact Is rotated in the direction of An operating means that is rotated in a second direction opposite to the first direction while the third contact is in contact with the mounted device when the package is removed from the mounted device; Switch means provided on the electronic circuit package for setting the state of the electronic circuit connected to the signal pattern in response to the turning operation of the operating means. .