JPH0346608Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a handset structure used in automobile telephones and the like.

[Conventional technology]

A conventional structure is shown in FIG. In the figure, 11
9 is a handset cell mounted in front of the handset 11; 5 is a handset 11;
12 is a mounting stand for fixing the handset 11; 4 is this mounting stand 12;
13 is a hand-free jack mounted on the rear of the mounting table 12; 14 is a hand-free unit connected to the hand-free jack 13; 2 is a hand-free unit mounted on the hand-free unit 14; This is a hands-free microphone.

Next, the operation will be explained.

During normal calls, the ring tone is heard from the handsfree speaker 4, and the ringtone is heard from the handset 1.
1 is removed from the mounting table 12 and a telephone conversation is made using the receiver cell 9 and the microphone 5.

When using hands-free, set handset 1.
1 is fixed on the mounting table 12, and a phone call is made using the hands-free speaker 4 and the hands-free unit 14. However, in this case, the hands-free unit 14 is connected to the hands-free jack 13,
A hands-free unit 14 is attached to a sun visor or the like in a car and a call is made.

[Problem that the invention attempts to solve]

Since the conventional device is configured as described above, and the hands-free speaker is mounted on the mounting table, the mounting table does not become smaller. Furthermore, it is necessary to provide the hands-free unit as a separate piece, which poses problems such as being expensive.

This invention was made to solve the above problems, and aims to make the mounting table smaller and lighter, and to obtain an inexpensive device with conventional functions using only a handset.

[Means for solving problems]

The handset structure with a built-in handsfree microphone and speaker according to this invention has a handset equipped with a handsfree microphone and a handsfree speaker in addition to a receiver cell and a microphone, and has a wall protruding from the top cover and bottom cover of the handset.
The space where the hands-free microphone is located and the space where the hands-free speaker is located are separated.

[Effect]

The handset structure with a built-in handsfree microphone and speaker in this invention has the following advantages: a handsfree speaker is mounted on the handset, and a handsfree jack is no longer needed.
Since the mounting table can be made smaller and the hands-free microphone is mounted on the handset, a separate hand-free microphone unit is no longer necessary. In addition, to prevent the sound from the hands-free speaker from reaching the hands-free microphone and causing howling, a wall that is integrally formed from the bottom cover and the top cover of the handset is installed inside to prevent howling, and outside, measures to prevent howling by widening the direction of the hand-free microphone and the hand-free speaker by more than 90 degrees.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a printed circuit wiring board A on which an operation unit and a display unit are mounted, 2 is a hand-free microphone, and 3 is a printed circuit wiring board A that holds this hands-free microphone 2. Holder A is fixed to 1, 4 is a hands-free speaker, 5 is a microphone, 6 is a printed circuit wiring board B that electrically connects the above-mentioned hands-free speaker 4 and microphone 5, etc., 7 is this printed circuit wiring Hold board B6 etc.
Holders B and 8 are fixed to the upper cover 8, which will be described later.
8a is a thin wall formed integrally with the upper cover 8; 9 is a receiver cell; 10 is a bottom cover; 10a is a thin wall formed integrally with this bottom cover 10; This is a recess groove that fits into the recess wall 8a.

Next, the operation will be explained.

During a normal call, a ringing tone is heard from the hands-free speaker 4, the handset is removed from the mounting base, and a call is made using the receiver cell 9 and the microphone 5.

When used hands-free, it is possible to make a call using the hands-free microphone 2 and the hands-free speaker 4 while the handset is fixed on the mounting table. At this time, the sound of the hands-free speaker tries to be transmitted to the inside of the handset, but the sound from the handsfree speaker is transmitted through a thin wall 8a provided on the top cover 8 of the handset.
It is cut off by a groove 10a provided in the bottom cover 10.

[Effect of idea]

As described above, according to this invention, the space inside the handset is divided into two by the top cover and the bottom cover, and the handset is configured to have a built-in microphone and speaker, so most functions can be performed with just the handset. This has the effect that the mounting table can be made smaller and the entire device can be made cheaper.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing a handset structure with a built-in hands-free microphone and speaker according to an embodiment of this invention, Fig. 2 is a sectional view of Fig. 1 showing an embodiment of this invention, and Fig. 3 is a conventional structure. FIG. 3 is a perspective view showing the structure. 1 is a printed circuit wiring board A, 2 is a hands-free microphone, 3 is a holder A, 4 is a hands-free speaker, 5 is a microphone, 6 is a printed circuit wiring board B, 7 is a holder B, 8 is an upper cover, 8a Hashiyahei wall,
9 is a handset cell, 10 is a bottom cover, and 10a is a front groove. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A handset equipped with a call operation section has a built-in handsfree microphone on the receiver side and a handsfree speaker on the transmitter side, and the amplified sound from the handsfree speaker is transmitted through the inside of the handset. A handset characterized in that a shielding wall is provided in the internal gap to prevent transmission of information to the hands-free microphone.