JPS5825625Y2 - Housing structure of portable communication device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a housing structure for a portable communication device.

In recent years, advances in technology have led to miniaturization of electric circuits, and the housings of portable communication devices have also become extremely small.

Therefore, as shown in Figure 1 a and l), it is small when usually carried around, and has a cover that can be inserted and removed from the housing 1 so that the receiver 3 and the transmitter 4 are located in the ear and mouth, respectively, when in use. 2, and the cover 2 was provided with a transmitter.

However, in this structure, the transmitter 4 is connected via a movable part.
This is undesirable because the circuit section of the housing 1 is electrically connected to the circuit section of the housing 1, which tends to cause poor connection or disconnection.

Regarding this, please refer to Utility Model Publication No. 513686.

An object of the present invention is to improve the above-mentioned drawbacks and provide a highly reliable housing structure for a portable communication device.

This will be explained in detail below with reference to the drawings.

As shown in FIG. 2, the casing of the present invention has a cylindrical cover 2 that covers the part of the casing 10 excluding the mounting part of the handset 30.
0, and the cover is removably fitted to the housing 10.

FIG. 2a shows sliding the cover 20 and inserting the housing 10 into the cover.
This shows the state in which it is stored and carried.

A transmitter 40 and a changeover switch 50 are provided at the lower part of the housing, and a sound hole 11 is provided at the bottom of the housing 10 in contact with the transmitter 40.
This is provided.

In addition, the actuator 51 of the changeover switch 50, which switches between the standby mode, the reception mode, and the talk mode, protrudes from the bottom surface of the housing 10, and in the case of FIG. The standby mode is in the receiving state.

The second figure shows the state when the cover 20 is slid downward and a telephone call is made.

FIG. 2C shows a sectional view taken along line A-A' in FIG.

The transmission hole 21 provided in the cover is made to have a somewhat large opening area in order to eliminate annoying resonance points generated in the cavity 60 inside the cover.

The dimensions between the speaking hole 21 and the receiver 30 are set to match the mouth and ear.

At this time, the actuator 51 of the changeover switch 50 protrudes from the bottom surface of the housing 10, and the circuit becomes in a communication state.

The sound is transmitted from the voice hole 21 to the voice transmitter 40 via the cavity 60 in the cover 20 and the sound hole 11.

This allows the cover 20 to have a sound collecting effect and improve the S/N ratio when sensing surrounding noise.

According to the method described above, the shape of the casing and its electrical circuit can be put into a communication state by the single operation of sliding the cover, and the advantage is not lost, and electrical parts such as a transmitter are installed on the cover side. Since there is no connection between movable parts such as the casing and the cover, there is no occurrence of disconnection or poor contact.

In this embodiment, the changeover switch is provided inside the housing, but if the operation of the changeover switch can be linked to the sliding operation of the cover, the position of the changeover switch does not necessarily have to be at the bottom inside the housing. It's obvious that it's good.

[Brief explanation of drawings]

Figures 1a and 1) are examples of conventional housing structures, and Figures 2a and 2b are examples of conventional housing structures. C shows an example of a housing structure according to the present invention. In the figure, 10 is a housing, 11 is a sound hole, 20 is a cover,
21 is a speaking hole, 30 is a receiver, 40 is a transmitter, 50 is a changeover switch, 51 is an actuator, and 60 is a cavity.

Claims (1)

[Scope of utility model registration request] In a case structure of a portable communication device having a structure in which a cylindrical cover covering a part of the case while leaving a part of the case is slidably inserted and removed, a part of the case is provided with a receiver, and a part of the case is provided with a receiver, and the cover is covered with a receiver. A transmitter and a sound hole are provided on the bottom surface of the housing, the cover is also provided with a voice hole, and a receiving call changeover switch is driven in communication with a sliding operation of the cover. Machine casing structure.