JP2004104469A - Part fitting structure of calling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the part fitting structure of a calling device with which a modular jack can easily be attached/detached to/from a panel, occurrence of stress is prevented in a connection part with a printed board at the time of attaching/detaching a curl cord, and a hook switch can easily and securely be positioned and fitted. <P>SOLUTION: The modular jack 30 and the printed board 34 mounting the jack are held between a locking piece 14 installed in the fitting part 10 of a handset panel 2 and holding parts 16a and 16b. The upper end part of the modular jack 30 is locked by a locking pawl 15 disposed in the locking piece 14. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is, for example, a communication device provided in a disaster prevention monitoring panel for transmitting calls, information, alarms, and the like, which is installed in a management room of an apartment house or a management room of a high-rise building or other large-scale building. More specifically, the present invention relates to a mounting structure of components constituting the communication device.
[0002]
[Prior art]
The communication device provided on this type of conventional disaster prevention monitoring panel is generally provided integrally with an operation unit provided on the front of the cabinet body, and the back of the operation unit is connected to the curl cord of the handset and the connector. A hook switch that turns on and off a communication circuit by removing or locking a modular jack and a handset is provided (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2000-286573 (page 3, FIGS. 5 to 7).
[0004]
[Problems to be solved by the invention]
In the conventional communication device as described above, the modular jack is soldered to the printed circuit board, the lower part of which is fitted into a rectangular frame provided on the back of the operation unit, and the printed circuit board is provided on the back of the operation unit. They are locked and locked by locking claws facing in opposite directions. As described above, since the modular jack is not directly fixed to the operation unit, when the connector provided on the curl cord of the handset is attached to or detached from the modular jack, a pressing force or a pulling force acts on the modular jack and the modular jack is connected to the printed board. A large stress acts on the connection part, and cracking or peeling may occur in the solder connection part.
In addition, since the printed circuit boards are locked and fixed to the locking claws facing in opposite directions, it is extremely troublesome to attach and detach the printed circuit boards to and from the operation unit.
[0005]
Furthermore, since the hook switch is provided on a large printed circuit board on which the display and operation electric components are mounted on the back of the operation unit, the layout of the hook switch and the operation of the printed circuit board which require strict positioning are required. Installation to the part was troublesome.
[0006]
The present invention has been made to solve the above-mentioned problem, and the modular jack can be easily attached to and detached from a panel, can be securely fixed at a predetermined position, and can be securely attached to a printed circuit board when a curl cord is attached or detached. An object of the present invention is to provide a component mounting structure of a communication device in which stress is not generated in a connection portion.
It is another object of the present invention to provide a component mounting structure for a communication device in which positioning and mounting of a hook switch are extremely easy and reliable.
[0007]
[Means for Solving the Problems]
The component mounting structure for a communication device according to the present invention includes a modular jack mounted on a printed circuit board and a pair of substantially L-shaped holding portions provided on one side of a back surface at an interval substantially equal to the length of the printed circuit board. An opening provided on the inside of the holding portion, where the connection port of the modular jack is located, and a mounting portion provided on the inside of the opening and provided with a locking piece having a locking claw on an upper portion. The modular board is inserted along the holding portion, the modular jack is brought into contact with the locking piece, and the locking claw of the locking piece is attached to the upper end of the modular jack. It is locked.
[0008]
Further, the component mounting structure of the communication device according to the present invention includes a hook switch mounted on a printed circuit board, a hook for controlling the hook switch, a support portion provided on the back surface for supporting the hook, and a part of the hook. An opening to be inserted, a pair of support posts having a fitting groove erected on both sides of the opening and opening inward and downward at an upper portion, and a mounting portion having a fixed support erected below the opening. A hook panel is rotatably mounted on the support portion, and the upper end of the printed circuit board is fitted into the fitting groove of the support post with the hook switch facing the hook. It is fixed to the fixed support.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 6 is a front view of an example of a disaster prevention monitoring panel provided with the communication device according to the present invention. In the figure, reference numeral 100 denotes a cabinet main body, and an operation panel 101 is provided at the center of the front. The operation panel 101 is provided with indicators and switches 102 of various devices as a display / operation unit, and a communication device 1 for making a call with each house information panel, a common entrance machine, and the like. Is provided. Reference numeral 60 denotes a handset, and reference numeral 61 denotes a curl cord having one end connected to the handset 60 and a connector provided at the other end detachably connected to a modular jack via an opening 12 provided in the operation panel 101. . Hereinafter, the communication device 1 will be described in detail.
[0010]
FIG. 1 is a rear view of a component mounting structure of a communication device according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is an exploded perspective view of FIG.
In the figure, reference numeral 2 denotes a rectangular talker panel, in which an upper concave portion 3 is provided at an upper portion of a front surface thereof to which a receiving portion of a handset 60 is locked, and a lower portion into which a transmitting portion of the handset 60 fits. A concave portion 4 is provided, and a peripheral wall 5 is provided on the rear surface (the surface in the figure). Reference numerals 6a to 6d denote hooks for detachably attaching the talker panel 2 to the operation panel 101.
[0011]
Reference numeral 10 denotes a modular jack attachment portion provided on one side of the lower recess 4 on the back surface of the handset panel 2. First, the modular jack 30 will be described. As shown in FIG. 3 (in FIG. 3, the left side is a front view and the right side is a rear view), the modular jack 30 is attached to the printed circuit board 34 by locking claws 31a and 31b, and the internal wiring is soldered. It is connected to the circuit pattern of the printed circuit board 34, and locking projections 32a and 32b are provided at lower portions of both side walls. Reference numeral 33 denotes a connection port of the connector of the curl cord 61 which is opened on the lower surface (connection terminals and the like are omitted). Reference numeral 35 denotes a connector connected to the circuit pattern on the printed circuit board 34. The printed circuit board 34 is connected to a main printed circuit board (not shown) in the cabinet body 100 via a connector 35.
[0012]
Again, in the mounting portion of the modular jack 30, reference numeral 11 denotes a fitting frame portion having a size into which the lower portion of the modular jack 30 can be fitted, and an opening portion 12 is formed at the bottom thereof in correspondence with the connection port 33 of the modular jack 30. A bottom plate 13 having a size that does not interfere with the opening 12 is provided. Reference numeral 14 denotes a locking piece that is provided upright on the lower recess 4 side (hereinafter referred to as the inside) of the fitting frame portion 11, and a locking claw 15 having a substantially triangular cross section is provided at the upper portion. the height _{H 1} of the up claw 15 corresponds to height _{H 2} of the modular jack 30.
[0013]
16a, 16b in the holding portions of the pair of printed circuit board 34 that is bent outward in an L-shape by cutting the peripheral wall 5, the distance L ₁ between the Inner is substantially equal to the length L ₂ of the printed circuit board 30, the bending depth _{t 1} corresponds to the plate thickness _{t 2} of the printed circuit board 30.
[0014]
Reference numeral 20 denotes a hook switch mounting portion. A rectangular opening 21 is provided on the lower side of the bottom rear surface of the upper concave portion 3, and a locking portion 21a protruding toward the opening 21 is provided at the lower end thereof. ing. Reference numerals 22a and 22b denote support portions for hooks 40, which will be described later, provided on the back surface of the upper concave portion 3 above the opening portion 21. Reference numerals 24a and 24b denote a pair of support columns erected on both sides of the opening 21. A fitting groove 25 that opens inward and downward is provided at the upper end. Reference numeral 26 denotes a fixed support standing upright on the back surface of the talker panel 2 below the opening 21. The fixed support 26 has a screw hole 27, and the upper end thereof has a lower edge of the fitting groove 25 of the support support 24a, 24b. Are located on substantially the same plane.
[0015]
A hook 40 has pins 41a and 41b rotatably fitted into the pin holes 23 of the support portions 22a and 22b on the upper side (left side in the figure), and the lower side has a substantially arcuate side surface. The opening 21 is provided with a hook portion 42 which can be freely fitted. Reference numeral 43 denotes a locking projection protruding from a lower portion on the front side of the hook portion 42.
[0016]
Reference numeral 50 denotes a hook switch. A switch actuator 52 is provided between arms 51a and 51b rotatably provided on both sides of the hook switch. The arms 51a and 51b are actuated by urging means (not shown). It is urged upward (in a direction away from a printed circuit board to be described later), and the urged range is regulated by stoppers 53a and 53b. Reference numeral 55 denotes a printed circuit board. The hook switch 50 is fixed to the printed circuit board 55 by four locking claws 54 (see FIG. 5), and the internal wiring is soldered to the circuit pattern of the printed circuit board 55. When the actuator 52 is at the position shown in the figure (position distant from the printed circuit board 55), the hook switch 50 is turned on, and when it is at a position close to the printed circuit board 55, it is turned off. Reference numeral 56 denotes a screw insertion hole provided at a position corresponding to the fixed column 26, and reference numeral 57 denotes a connector to which a circuit pattern of the printed circuit board 55 is connected. The width _{W 2} of the printed circuit board 55 support posts 24a, substantially equal to the clear width interval _{W 1} and 24b of the fitting groove 25, the thickness _{t 4} is is formed to be almost equal to the vertical width _{t 3} of the fitting groove 25 . The printed board 55 is connected to a main printed board (not shown) in the cabinet main body 100 via a connector 57.
[0017]
Next, an example of a procedure for attaching the modular jack 30 to the attachment portion 10 will be described with reference to FIG.
First, as shown in FIG. 4A, the modular jack 30 is positioned on the mounting portion 10 with the connection port 33 (see FIG. 3) facing downward and the printed circuit board 34 facing outward. Then, both ends of the printed circuit board 34 are pushed down while being positioned along the inner walls of the holding portions 16 a and 16 b provided on the peripheral wall 5. At this time, the locking piece 14 is elastically deformed by the locking claw 15 being pressed against the wall surface of the modular jack 30, so that the modular jack 30 can be easily pushed.
[0018]
When the modular jack 30 is further pushed in, its lower end is fitted into the fitting frame 11, and the locking projections 32 a and 32 b abut against the upper edge of the fitting frame 11 and stop. At this time, the front wall of the modular jack 30 abuts on the locking piece 14, the locking claw 15 locks on the upper surface of the modular jack 30, and the connection port 33 is placed on the opening 12 provided in the communication panel 2. To position. The state at this time is shown in FIG.
When the modular jack 30 is to be removed from the mounting portion 10, the printed circuit board 34 can be easily removed by pushing the locking claw 15 of the locking piece 14 with a finger to elastically deform the printed circuit board 34.
[0019]
According to the present invention, the modular jack 30 can be easily and reliably mounted on the mounting portion 10, and its front-rear direction (the direction of the arrow A in FIG. 4B) mainly includes the locking piece 14 and the holding portions 16a, 16b. The horizontal direction (arrow B direction) is regulated mainly by the fitting frame portion 11 and the holding portions 16a and 16b, and the vertical direction (arrow C direction) is regulated by the fitting frame portion 11 and the locking claw 15. Therefore, it is securely mounted at a predetermined position and does not move.
[0020]
Further, since the modular jack 30 is attached to the printed circuit board 34 by the locking claws 31a and 31b and is fixed to the mounting portion 10 by the locking claws 15, the connection port located in the opening 12 of the telephone panel 2 is provided. When attaching / detaching the connector provided on the curl cord 61 of the handset 60 to / from the modular handset 33, the modular jack 30 does not fluctuate, so that no stress is generated in the solder connection portion to the printed circuit board.
[0021]
Further, since the holding members 16a and 16b not only have a function of an attaching portion of the modular jack 30, but also have a function as a peripheral wall 5 for preventing and reinforcing warpage of the talker panel 2, the talker panel is provided. 2 can be formed without complicating the shape. Further, since the modular jack 30 is independently mounted on the small printed circuit board 34 instead of the main printed circuit board (not shown) in the cabinet main body 100, replacement work in case of failure is easy.
[0022]
Next, an example of a procedure for attaching the hook 40 and the hook switch 50 to the hook switch attaching portion 20 will be described with reference to FIGS.
First, the pins 41a and 41b of the hook 40 are inserted into the pin holes 23 of the support portions 22a and 22b of the hook from inside. Thus, the hook 40 is rotatably supported by the support portions 22a and 22b, and a part of the hook portion 42 is located in the opening 21 by its own weight.
[0023]
Then, the printed circuit board 55 to which the hook switch 50 is attached is attached with the hook switch 50 side facing downward (the printed circuit board 55 in FIG. 3 is turned upside down) and facing the hook 40 attached to the attaching portion 20. It is located on the part 20. Then, both ends of the upper end of the printed circuit board 55 are fitted into the fitting grooves 25 of the support columns 24a and 24b, and the screws 58 inserted into the screw insertion holes 56 are screwed into the screw holes 27 of the fixed columns 26 and fixed. Thereby, the attachment of the hook 40 and the hook switch 50 to the attachment portion 20 is completed. Although the case where the printed circuit board 55 is screwed to the fixed column 26 has been described, the printed circuit board 55 may be fixed to the fixed column 26 by means other than screwing.
[0024]
At this time, the actuator 52 of the hook switch 50 is urged by the arms 51a and 51b in a direction away from the printed circuit board 55, and presses and rotates the tip of the hook 40 by the tip thereof, thereby opening the hook 42. 21. When the hook 40 comes into contact with the upper concave portion 3 of the talker panel 2 and stops, the actuator 52 stops in a state in which the distal end portion contacts the hook 40. At this time, the hook switch 50 is turned on. The state at this time is shown in FIG.
[0025]
Next, as shown in FIG. 6, when the handset 60 is hung between the upper concave portion 3 and the lower concave portion 4 on the front side of the handset panel 2, as shown in FIG. The locking recess 63 provided on the receiving section 62 side is locked and held by the locking section 21a provided at the lower end of the opening 21 of the communication panel 2.
At this time, the receiving section 62 of the handset 60 presses the hook section 42 of the hook 40, and rotates the hook 40 counterclockwise about the pins 41a and 41b. With the rotation of the hook 40, the actuator 52 of the hook switch 50 that comes into contact with the hook 40 also rotates in a direction approaching the printed circuit board 55, whereby the hook switch 50 is turned off. The state at this time is shown in FIG.
If the handset 60 is removed from the call panel 2 for a call or the like, the state returns to the state shown in FIG. 5A, and the call circuit is turned on.
[0026]
According to the present invention, the hook switch 50 is independently mounted on the small printed circuit board 55, and the upper end of the printed circuit board 55 is provided on the pair of support columns 24 a and 24 b erected on the communication panel 2 inside and below. The hook switch 50, which is required to be strictly positioned, can be easily and surely mounted at a predetermined position because it is fitted and positioned in the fitting groove 25 which is opened at the bottom, and is screwed to the fixed column 26. .
[0027]
Further, since the printed circuit board 55 is small and hardly bent, there is no possibility that the ON / OFF operation of the hook switch 50 is affected by the bending. Further, for example, when the hook switch 50 is mounted on a main printed circuit board (not shown) in the cabinet main body 100, when another component of the main printed circuit board breaks down and replacement is performed, the hook switch 50 is used. However, since the hook switch 50 is mounted on the small printed circuit board 55, such a work becomes unnecessary, and replacement when the hook switch 50 or the like breaks down is required. Work is easy.
[0028]
【The invention's effect】
In the component mounting structure for a communication device according to the present invention, a modular jack and a printed circuit board on which the modular jack is mounted are sandwiched between a retaining piece of a mounting portion and a retaining portion, and the upper end of the modular jack is engaged with a retaining claw. Since the mobile phone is stopped, the modular jack can be easily and reliably attached to and detached from the telephone panel, and can be securely fixed at a predetermined position. Further, when the connector provided on the curl cord of the handset is attached or detached, the modular jack does not swing, so that the solder for connecting the internal wiring to the printed circuit board does not crack or peel off.
[0029]
Further, since the component mounting structure of the communication device according to the present invention is such that the printed circuit board on which the hook switch is mounted is fitted to a pair of fitting grooves provided in the telephone device panel and fixed to the fixed support, A hook switch that requires strict positioning can be easily and reliably mounted at a predetermined position.
[Brief description of the drawings]
FIG. 1 is a rear view of a component mounting structure of a communication device according to an embodiment of the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is an exploded perspective view of FIG.
FIG. 4 is an explanatory diagram for explaining a procedure for attaching a modular jack to an attachment portion.
FIG. 5 is an explanatory diagram for explaining a procedure for attaching a hook switch to an attaching portion.
FIG. 6 is a front view of a disaster prevention monitoring panel provided with the communication device according to the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 telephone device, 2 telephone panel, 10 modular jack mounting portion, 12 opening, 14 locking piece, 15 locking claw, 16 a, 16 b holding portion, 20 hook switch mounting portion, 21 opening, 24 a, 24 b Support post, 25 fitting groove, 26 fixed post, 30 modular jack, 33 connector connection port, 34 printed board, 40 hook, 42 hook part, 50 hook switch, 52 actuator, 55 printed board, 60 handset, 61 curl code.

Claims (2)

A modular jack mounted on a printed circuit board,
A pair of substantially L-shaped holding portions provided on one side of the back surface at an interval substantially equal to the length of the printed circuit board, an opening provided inside the holding portion and in which a connection port of the modular jack is located; A telephone panel provided with a mounting portion provided with a locking piece having a locking claw at an upper portion, which is erected inside the opening,
The printed circuit board is inserted along the holding portion, the modular jack is brought into contact with the locking piece, and the locking claw of the locking piece is locked at the upper end of the modular jack. Parts mounting structure of the communication device. Hook switch mounted on the printed circuit board,
A hook for controlling the hook switch;
A support portion provided on the back surface and an opening into which a part of the hook is inserted, a pair of support posts having a fitting groove erected on both sides of the opening and having an inner opening and an opening at an upper portion, And a telephone panel provided with a mounting portion in which a fixed support is erected below the opening,
A hook is rotatably attached to the support portion, and the upper end of the printed circuit board is fitted into the fitting groove of the support column while the hook switch is opposed to the hook, and is fixed to the fixed column. Parts mounting structure of the communication device.

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