CN201188682Y - Multifunctional earphone - Google Patents

Abstract

The utility model discloses a multifunctional earphone includes earphone shell, and its characterized in that earphone shell conch inboard is opened there is the slotted hole, is equipped with speaker change over switch's control key in the slotted hole, has speaker group, change over control switch and power limiting device inside earphone shell, and wherein speaker group comprises the speaker of a miniwatt, and a high-power speaker is constituteed, and the installation back to the back of the body is carried out to the sound production direction. The utility model discloses can reduce the energy consumption when high-power earphone is being done little volume broadcast and is using, also provide the big volume that little earphone can not provide, change over switch and power limiting device can protect speaker and people's hearing to avoid the harm of too strong electric current or sound.

Description

A kind of multifunctional earphone

Technical field

The utility model relates to the field of portable audio equipment

Background technique

Nowadays, people like to listen to music. At present, personal portable speakers usually use earplugs or headphones. When multiple people want to listen, the headphones can only be used by one or two people in a small range. Internal listening can damage your hearing over time. Listening with a speaker can be heard by more people, even if it takes a long time, it will not damage hearing, but it is inconvenient to carry, and the power consumption is relatively large, which often consumes the power consumption of the playback device very quickly. Due to the current development of loudspeakers, people can use miniaturized loudspeakers to create a strong sound field effect within a few meters to achieve the effect of multiple people listening together and achieve the effect of small speakers. This has also resulted in the current earphone products, which have relatively high power and can be taken off as a small speaker for trial use. However, because they are worn on the ear, they are often turned on to a higher volume unconsciously, thereby causing hearing damage. Power headphones, the distortion is obvious.

Utility model content

How to make the earphone satisfy the requirement that one person can listen to music without disturbing others, and it can be used as a small speaker to reduce distortion and damage caused by high volume to the ears. The goal.

The technical scheme adopted for the problem solved by the utility model is: a multi-functional earphone, which includes an earphone shell, is characterized in that there is a slot on the shell wall, and the control key of the conversion control switch is installed in the slot, and there is a switch inside the shell. Loudspeaker group and changeover control switch, power limiting device.

Among them, the speaker group consists of a high-power speaker and one or more low-power speakers. The sound-emitting directions are installed opposite to each other. The low-power speaker is installed on the inner side of the earphone shell facing the ear, and the high-power speaker is installed on the outside of the earphone shell facing the head. On the outside of the head, the power of the high-power speaker is greater than 0.5W, which meets the requirements of being a small speaker, while the power of the low-power speaker is less than 1W, for example, when its power is 4mW, it can be used as an earphone; the conversion control switch is inside the earphone shell , the control key of the transfer switch is located in the slot hole of the shell, which can be controlled manually. The best position is on the inside of the earphone, on the same surface as the small speaker, and should not be touched when the head is worn; the power limiting device is a limitation An integrated circuit for inputting signal power, limiting the signal power not to exceed a predetermined standard, the value of which is set according to the sensitivity and noise standard of the earphone;

Its working principle is: the signal S generated by the signal source 1 is selected and input to the high-power speaker 6 by the conversion control switch 2 through the touch control key 3 as a small speaker for playback, or input to the low-power speaker through the power limiting device 4 5 is used as an earphone; the above components are electrically connected.

The beneficial effect of the utility model is that it can reduce the energy consumption when the high-power earphones are used for low-volume playback, and also provide a large volume that cannot be provided by small earphones. , which is an improvement in volume and sound quality over what can be produced by a single high-power or low-power speaker. The low-power speaker works when it is hung on the ear, and it can play the role of a small speaker when it is taken off. When the conversion switch is set on the inner side of the earphone close to the ear, it can force the earphone to be taken off when the high-power speaker is switched to prevent the ear from being damaged by the sudden noise or excessive volume of the earphone when the power speaker is switched. . There is a power limiting device between the transfer switch and the low-power speaker. Its function is to protect people from wearing earphones on the ear, preventing the low-power speaker from being too loud due to excessive power input during work, causing hearing damage or current. If it is too large, it will cause the low-power speaker to burn out.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

1 signal source, 2 speaker switch, 3 control keys, 4 power limiting device, 5 low power speaker, 6 high power speaker, 7 earphone shell, 8 slot holes

Detailed ways

Below by Fig. 1, the utility model is further described:

Embodiment 1 A kind of multifunctional earphone, comprises earphone shell 7, is characterized in that earphone shell 7 shell wall inner side has slotted hole 8, and the control key 3 of loudspeaker changeover switch 2 is housed in the slotted hole 8, inside earphone shell 7 there is Loudspeaker group and changeover control switch 2, power limiting device 4.

Wherein the loudspeaker group is made up of a low-power loudspeaker 5 and a high-power loudspeaker 6, and the sounding direction is oppositely installed, the low-power loudspeaker 5 is installed on the inner side of the earphone shell 7 towards the ear, and the high-power loudspeaker 6 is installed on the earphone shell 7 The inner side faces the outer side of the head, the power of the high-power speaker is 1W, which is used as a small speaker, and the power of the low-power speaker is 4mW, which is used as an earphone;

The loudspeaker changeover switch 2 is inside the earphone shell, and the control key of the changeover switch is located in the hole of the shell;

The power limiting device is a limiter, the power is limited to 3.5mW;

The signal current input to the earphone is selected to be input to a high-power speaker as a small speaker through a switch, or input to a low-power speaker through a power limiting device to be used as an earphone;

The above components are electrically connected.

Claims (7)

1, a kind of multifunctional headphone, include earphone outer covering (7), it is characterized in that earphone outer covering (7) shell wall inboard has slotted eye (8), the operating key (3) of loud speaker change over switch (2) is housed in the slotted eye (8), in earphone outer covering (7) inside set of speakers and conversion controling switch (2), power limitation device (4) are arranged; Wherein set of speakers is by a low power loud speaker (5), and a supersound projector (6) is formed, the opposing installation of voice directions.

2, multifunctional headphone according to claim 1, its feature also is: small-power loud speaker (5) is installed in the inner inboard voice directions of earphone outer covering (7) towards ear.

3, multifunctional headphone according to claim 1, its feature also is: supersound projector (6) is installed in the headward outside of voice directions, the inner outside of earphone outer covering (7).

4, multifunctional headphone according to claim 2, its feature also is: supersound projector (6) power is greater than 0.5W.

5, multifunctional headphone according to claim 2, its feature also is: low power loud speaker (5) power is less than 3W.

6, multifunctional headphone according to claim 1, its feature also is: the operating key (3) of conversion controling switch (2) is arranged in the slotted eye (8) of shell, can be with manually controlling.

7, multifunctional headphone according to claim 1, its feature also is: power limitation device (4) then is the electricity-limiter of the integrated circuit of a restriction input signal power.

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