JPH0246050A - handset - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a handset for use in telephones, intercoms, and the like.

2. Description of the Related Art Hitherto, a heel telephone receiver has been known with a configuration h' as shown in FIG. Hereinafter, the above conventional example will be explained with reference to the drawings.

As shown in FIG. 4, the case 51 is composed of a lower case 52 and an upper case 53. A receiving speaker 54, a transmitting microphone 55, a modular connector 56, etc. are sequentially housed in the lower case 52 so as not to shift their positions. Receiving speaker 54, transmitting microphone 55 and holding member 57
．． 58 and inserted into the holes 59 and 60 of each holding member 57 and 58 are screwed into the screw holes 63 of the boss 62 protruding inside the lower case 52, and the receiving speaker 54 and the sending microphone 55 is fixed to the lower case 52. A modular connector 56 is attached to the holding member 58.
is fixed. Wiring members 64 connected to the modular connector 56 are connected to the receiving speaker 54 and the transmitting microphone 55, respectively. Then, the lower case 52 and the upper case 53 are combined, and the lower case 52 and the upper case 53 are fixed by screws 67 using holes 66 for mounting on the bosses 65 of the lower case 52.

Problems to be Solved by the Invention However, in the above-mentioned conventional handset, the reception spill force 54,
Each component such as the transmitting microphone 55 is separately installed in the lower case 52.
The shape of the lower case 52 is inevitably complicated so that each component can be positioned with high accuracy. For this reason, the cost of the manufacturing mold becomes high, and as a result, the unit price of the lower case 52 also becomes expensive, and it takes a long time to manufacture the mold.
This was expensive and took many days to produce, which hindered the production of a wide variety of handsets and receivers.

In addition to the manufacturing issues mentioned above, there were also assembly issues. That is, the lower case 52 stores a large number of parts.
Because the user is holding it, it is necessary to have a smooth curved surface and each corner is rounded to provide a comfortable feel. Therefore, when the lower case 52 itself is placed on an assembly workbench, it is unstable, and it is difficult to accurately insert a large number of parts without shifting their positions. Furthermore, since the lower case was unstable as described above, it was difficult to align the holes 59,60 of the screws 61 and the screw holes 63 of the pressing members 57,58, making it difficult to tighten them.

Furthermore, since the lower case 52 is made of thin plastic, it will deform or crack if it is gripped strongly, and it will break even if parts to be stored inside are forcefully pressed into it. Moreover, if you are not careful during handling, the surface will be damaged. I sometimes put it on. Furthermore, the work of routing the wiring material 64 from the modular connector 56 to the receiving speaker 54 and the transmitting microphone 55 was troublesome.

Due to these assembly issues, conventionally,
Handsets were often assembled by hand.

The present invention solves the above-mentioned problems of the prior art, and solves the problems of the prior art by fixing and integrating internally stored components consisting of a modular connector, a receiving speaker, and a transmitting microphone to a printed circuit board. Standardization and common use can be achieved, the shape of the case can be simplified and it can be manufactured in a short period of time, costs can be reduced, and cases can be made more diverse.
The object of the present invention is to provide a handset in which internal parts can be easily assembled without damaging the case.

Means for Solving the Problems In order to achieve the above object, the present invention provides a printed circuit board with pattern wiring, a modular connector fixed to the printed circuit board and electrically connected to it, a receiving speaker, and a transmitting speaker. An internal storage component consisting of a microphone,
Consisting of a lower case and an upper case, the above printed circuit board and internal storage parts? The device includes a case for storing the printed circuit board and a fixing means for fixing the printed circuit board and internally stored parts inside the case.

For production The present invention has the following effects due to the above configuration.

That is, it is possible to fix the internal storage components consisting of the modular connector, the receiving speaker, and the transmitting microphone to the printed circuit board in advance, and to connect them electrically, and to integrate them and store them in the case consisting of the lower case and the upper case. can. Since the printed circuit board is housed inside the case as described above, the internally housed components can be fixed without paying attention to scratches as in the case of the upper case and the lower case.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

Figures 1 to 3 show a handset in an embodiment of the present invention, Figure 1 is an exploded perspective view, Figure 2 is an exploded perspective view of the printed circuit board and internal storage components, and Figure 3 is a completed assembled state. FIG.

As shown in Figures 1 to 3, case 1 is lower case 2.
and an upper case 3. A receiving speaker holding part 5 is integrally provided in the receiving speaker housing recess 4 of the lower case 2, and a transmitting microphone holding part 7 is integrally provided in the transmitting microphone storing recess 6. A hole 8 for inserting a modular plug is formed at the end of the recess 6 for storing the transmitting microphone, and a screw insertion hole 9 is formed at the center.
is formed. An engaging protrusion 10 is integrally provided inside the central portion, and an engaging protrusion 11 is also integrally provided inside the receiving speaker storage recess 4.

A boss 12 is protruded from inside the center of the upper case 3, and a screw hole 13 is formed in the boss 12.

The internal storage components consisting of the modular connector 14, the receiving speaker 15, and the transmitting microphone 16 are the printed circuit board 1.
7 and is integrated. That is, as is particularly clear from FIG. 2, the modular connector 14 is integrally provided with a plurality of engagement protrusions 18, and the receiving speaker 15 is also integrally provided with a plurality of engagement protrusions 19. . The printed circuit board 17 has a pattern wiring 20, is formed in a rectangular shape, and has the above-mentioned engagement protrusions 18 on both short sides.
, 19 corresponding to the holding holes 21. 22 is formed, a screw insertion hole 23 is formed in the center part, and holding holes 24 and 25 corresponding to the above-mentioned engaging protrusions io and 1i are formed in the center part and one side.
is formed.

To assemble the handset of the above embodiment, the terminals 26 and 27 of the modular connector 14 and the earpiece speaker 15 are assembled as shown in FIGS. 1 and 2. Printed circuit board 17
At the same time, the engaging protrusions 18 and 19 of the modular connector 14 and the receiver speaker 15 are inserted into the pattern wiring 20 of the modular connector 14 and the receiving speaker 15. It engages with the holding protrusions 21 and 22 of the printed circuit board 17 to hold it in a fixed state.

Thereafter, each terminal 26, 27 and the pattern wiring 20 of the printed circuit board 17 are soldered to electrically connect.

The transmitting microphone 16 connects its terminal 28 to the printed circuit board 1.
After inserting it into the pattern wiring 20 of No. 7, it is fixed by soldering and electrically connected. The thus integrated printed circuit board 17, modular connector 14, receiving speaker 15, and transmitting microphone 16 are housed in the lower case 2 as shown in FIG. 3, and the receiving speaker 15 is inserted into the receiving speaker holding portion 5. , insert the transmitting microphone 16 into the transmitting microphone holding part 7, and insert the retaining holes 24 and 25 of the printed circuit board 17 into the engaging protrusion 1 of the lower case 2.
0,11. Then, put the upper case 3 on the lower case 2, and screw the screws 29 into the screw holes 13 of the upper case 3 through the screw insertion holes 9 and 23 of the lower case 2 and the printed circuit board 17, thereby connecting the printed circuit board 17 and the modular connector. 1
4. The receiving speaker 15 and the transmitting microphone 16 can be fixed within the case.

When the handset thus constructed is used, the modular plug 3o connected to the telephone main body (not shown) is inserted into the modular connector 14, and electrically and signally connected.

In the above embodiment, the terminal 28 of the transmitting microphone 16
Although the case where the microphone 16 is fixed by soldering to the printed circuit board 17 has been described, the transmitting microphone 16 is also provided with an engaging protrusion similar to the engaging protrusion 18 of the modular connector 14 in advance, and a holding hole in the printed circuit board 17 is provided. It may also be configured to be engaged with and held in a fixed state. In the above embodiment, the lower case 2 is provided with engagement protrusions 10 and 11, and the printed circuit board 1
In order to further simplify the shape of the lower case 2, which engages with the holding protrusions 24 and 25 of No. 7, and which emphasizes ease of assembly and prevention of positional displacement after assembly, these engagement protrusions A handset without using 10, 11 and holding holes 24, 25? It may be configured.

Effects of the Invention As described above, according to the present invention, internal storage components consisting of a modular connector, a receiving speaker, and a transmitting microphone are fixed to a printed circuit board and electrically connected to the printed circuit board.
Since it is integrated and stored in a case consisting of a lower case and an upper case, internal storage parts can be standardized and shared with other handsets, and the shape of the case can be simplified. It can be manufactured in a short period of time, and costs can be reduced, and cases can be diversified. In addition, since the printed circuit board ultimately becomes an internal component, there is less need to be careful about scratches compared to the upper and lower cases.Also, since the printed circuit board is patterned and wired, it is modular as described above. Internal storage components such as connectors are fixed to the printed circuit board and electrically connected, so there is no need for the troublesome work of routing wiring materials as in the past, and it is also possible to attach internal storage components such as modular connectors to the printed circuit board. Since it is fixed, there is no need to use screws to fix it to the case as in the conventional case, so it can be easily assembled in one step.

[Brief explanation of the drawing]

Figures 1 to 3 show a handset according to an embodiment of the present invention, with Figure 1 being an exploded perspective view, Figure 2 being an exploded perspective view of the printed circuit board and internally stored components, and Figure 3 being a completed assembled state. FIG. 4 is an exploded perspective view of a conventional handset. DESCRIPTION OF SYMBOLS 1...Case, 2...Lower case, 3...Upper case, 10.11...Engagement protrusion, 14...Modular connector, 151. Receiving speaker, 16/sending microphone,
17... Printed circuit board, 18.19... Engagement protrusion,
21゜22, 24, 25...Retaining hole, 26, 27
．． 28...Terminal. Name of agent: Patent attorney Shigetaka Awano

Claims (2)

[Claims] (1) Consisting of a printed circuit board with patterned wiring, an internal storage component consisting of a modular connector, a receiving speaker, and a transmitting microphone fixed to the printed circuit board and electrically connected to it, a lower case, and an upper case, A handset comprising: a case for storing the printed circuit board and internally stored components; and a fixing means for fixing the printed circuit board and internally stored components within the case. (2) Claim 1, wherein the fixing means includes a holding means consisting of a hole formed in the printed circuit board, and an engaging protrusion that protrudes from at least one of the upper case and the lower case and is engaged with the holding hole. Handset as described.