WO2014089719A1

WO2014089719A1 - Improved structure of earphone

Info

Publication number: WO2014089719A1
Application number: PCT/CN2012/001669
Authority: WO
Inventors: 邓克忠
Original assignee: Teng Ko-Chung
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2014-06-19

Abstract

An improved structure (100) of an earphone comprises a shell body (1). A first loudspeaker and a second loudspeaker are simultaneously installed inside the shell body (1). The improved structure of the earphone also comprises a transformer (4) that is electrically connected to the first loudspeaker and the second loudspeaker, wherein the first loudspeaker and the second loudspeaker can be a loudspeaker possessing a high range (3) and a loudspeaker possessing a low range (5). The loudspeaker possessing the low range (5) and the loudspeaker possessing the high range (3) have different impedances. Different currents can be provided through the transformer (4) to drive the different loudspeakers whose impedances are very different, avoiding a situation where sound is extremely imbalanced caused by using the loudspeakers whose impedances are very different simultaneously. Through this configuration, the earphone can provide a user with a full range sound experience.

Description

Headphone structure improvement

Technical field

The present invention relates to an improvement in the structure of an earphone, and in particular to an earphone structure in which a speaker having a lower range and a speaker having a higher range can be simultaneously mounted and driven. Background technique

In the existing earphone structure, there are many types of speakers used. Currently, the common speakers on the market can be roughly classified into a moving coil type and a moving iron type according to the principle of the single operation, and the types of the single body are Can be divided into multiple monomers as well as a single monomer. Among them, the various monomers have different sound ranges than the ones they have. In direct current, the obstacle caused by an object is defined as resistance. However, in alternating current, the impedance is not a single value. In addition to the resistance, it also includes the resistance of the capacitor to the frequency (Capacitive). Resistance) and Inductive Resistance of the Inductive Resistance The earphone impedance is an abbreviation for the AC impedance of the earphone, and is generally expressed in ohms.

Speakers with different impedances can be used in different applications. In general, when connecting high-quality audio equipment such as CDs and DVDs, headphones with high impedance will be selected. These high-impedance headphones have an impedance of 600Ω, which provides better sound quality, but it is also difficult. Drive, generally belongs to the higher level headphones. Headphones that are usually carried around for portable devices such as Walkmans often use low-impedance headphones because they have a minimum impedance of 20 Ω and are easier to drive. In addition, the frequency of the sound field that humans can hear is 20Hz~20kHZ. However, the existing earphones on the market generally have only one single cell, and the single field can provide a limited range and cannot be used. Experience in the use of full range. With the advancement of technology, the requirements of the general user for the sound quality of the headphones and the breadth of the sound are becoming more and more strict. Generally, only one single earphone can no longer meet the needs of users. Summary of the invention

Based on the above reasons, an object of the present invention is to provide an improved earphone structure in which two monomers having different sound ranges can be simultaneously mounted and driven in a general earphone structure, so that the earphone can provide a high-quality sound having a full range. A feature of the present invention is to provide an improved earphone structure including a housing, a first speaker and a second speaker are mounted on the inside of the housing, and includes a transformer electrically connected to the first speaker and the second speaker. The first speaker and the second speaker may be a speaker with a higher range and a speaker with a lower range. Since the speakers in the low range and the speakers in the high range have different impedances, the transformer can prevent the speakers of different impedances from being driven with the same current, resulting in an extremely unbalanced sound pressure and a situation in which music cannot be heard. With this configuration, the earphone can provide the user's full-range sound experience.

The technical means of the present invention comprises: a housing, a first speaker, a second speaker, and a transformer. The first speaker and the second speaker are mounted in the housing, and both are electrically connected to the transformer at the same time. Wherein one of the first and second speakers is a speaker with a higher range, and the other speaker is a speaker with a lower range.

Preferably, the housing may further have a first chamber and a second chamber, wherein the first chamber is adjacent to the second chamber in a straight line with its axis and the axis of the second chamber . The first speaker is mounted in the first chamber, and the second speaker is mounted in the second chamber. A cover is fixed to the housing for covering the first chamber and the second chamber.

Wherein one side of the housing has a plurality of holes, and one of the first speaker and the second speaker is embedded in at least one of the plurality of holes.

Preferably, the first speaker and the second speaker are also mounted in parallel on a substrate of the housing. DRAWINGS

1 is a side cross-sectional view showing a modified structure of an earphone according to a first embodiment of the present invention; FIG. 2 is a front elevational view showing a modified structure of the earphone according to the first embodiment of the present invention;

Figure 3 is a rear elevational view showing the improved structure of the earphone according to the first embodiment of the present invention;

Figure 4 is a side sectional view showing a modification of the improved structure of the earphone according to the first embodiment of the present invention;

Figure 5 is a side cross-sectional view showing a modified structure of an earphone according to a second embodiment of the present invention.

The reference numerals are as follows:

100 earphone structure improvement 1 housing

1 10 hole 12 substrate 13 first chamber 15 second chamber

2 wires 3 AMT treble

4 transformer 5 woofer

6 cover body

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt;

1 is a side cross-sectional view showing a headphone modified structure 100 in accordance with a first embodiment of the present invention. As shown in FIG. 1, the earphone improved structure 100 of the present invention comprises: a casing 1, a first speaker, a second speaker, and a transformer 4. In the preferred embodiment, the first speaker is an AMT treble 3 and the second speaker is a woofer 5. The AMT treble 3 and the woofer 5 are mounted in the housing 3, and the two are electrically connected to each other. The transformer 4 is electrically connected to both the AMT treble 3 and the bass horn 5. Among them, the AMT treble 3 is a ribbon/AMT unit with a lower impedance, and the woofer 5 is a multi-cell with a higher impedance.

In the first embodiment, a first chamber 13 and a second chamber 15 are formed on the casing 1, wherein the first chamber 13 is for mounting the AMT treble 3, and the second chamber 15 is for mounting. Woofer 5. As shown in Fig. 1, the center point axis of the first chamber 13 is in line with the center point axis of the second chamber 15, and the first chamber 13 and the second chamber 15 abut each other. In this way, the AMT treble 3 and the woofer 5 can be mounted in the headphone structure 100 in the configuration of the first figure.

Since the AMT treble 3 used in the present invention is a ribbon/AMT unit having a lower impedance, and the woofer 5 is a multi-monomer having a higher impedance, if the two are simply electrically connected together, The impedance of the woofer 5 will require a large voltage when driving, which will cause an extremely unbalanced sound. However, in the present invention, a transformer 4 is additionally electrically connected between the woofer 5 and the AMT treble 3, and when the woofer 5 is driven by the current, the current of the AMT treble 3 is adjusted via the transformer 4 to avoid sound. A balanced situation occurs. The transformer 4 electrically connected to the two horns described above is suspended outside the casing 1 in the present invention and is not particularly fixed. However, as long as the transformer 4 is electrically connected between the two speakers, it is within the scope of protection of the present invention. 2 is a front elevational view of the earphone structure 100 of the present invention, and FIG. 3 is a rear elevational view of the earphone structure 100 of the present invention. As shown in FIGS. 2 and 3, the housing 1 has a plurality of holes 110 on one side thereof so that the sound of the inner AMT treble 3 and the woofer 5 can be transmitted to the user through the hole 110. In the preferred embodiment, the AMT treble 3 can also be embedded in one of the holes 1 10 described above. In addition, the earphone structure 100 of the present invention has two wires electrically connected to the AMT treble 3, the transformer 4 and the woofer 5 at the rear of the casing, and can be electrically connected to an external power source to provide power supply. Speaker.

4 is a side cross-sectional view showing a variation of the earphone structure improvement 100 according to the first embodiment of the present invention. In FIG. 4, the earphone structure has the same configuration as that in the first embodiment, and further includes a cover body 6 which encloses the first chamber 13 and the second chamber 15 by being engaged with the casing 1. Overlay to achieve the effect of protecting AMT treble 3, transformer 4 and woofer 5.

According to the results of experiments conducted by the inventors, the AMT treble 3 and the woofer 5 can achieve the best sound output effect when mounted in accordance with the configuration in the first embodiment.

Figure 5 is a side elevational cross-sectional view of an earphone structure improvement 100 in accordance with a second embodiment of the present invention. As shown in Fig. 5, in the second embodiment, the casing 1 has a substrate 12, and the woofer 5 and the AMT treble 3 are mounted on the substrate 12 in a parallel manner. In the second embodiment, the woofer 5 and the AMT treble 3 are still electrically connected to each other, and the transformer 4 is also electrically connected to the woofer 5 and the AMT treble 3 at the same time. The earphone implemented according to the configuration of the second embodiment is suitable for application to an earmuff type earphone because of its large size.

According to the earphone modification structure 100 of the present invention, a speaker having a lower range and a speaker having a higher range can be simultaneously configured and driven, so that the earphone can provide a high-quality enjoyment of a full range of the user.

It can be seen from the above embodiments that the earphone structure provided by the present invention has industrial use value, but the above description is only for the description of the preferred embodiment of the present invention, and those skilled in the art can make the above description. Other various modifications, but such changes are still within the spirit of the invention and the scope of the patents defined below.

Claims

Rights request

An improved earphone structure, comprising:

a housing

a first speaker mounted in the housing;

a second speaker is mounted in the housing and electrically connected to the first speaker; and a transformer is electrically connected to the first speaker and the second speaker;

Wherein, one of the first and second speakers is a speaker with a higher range, and the other speaker is a speaker with a lower range.

2 . The earphone structure improvement according to claim 1 , wherein the housing further comprises a first chamber and a second chamber, wherein the first chamber has a center point axis and the second volume The center point axis of the chamber is adjacent to the second chamber in the same straight line.

3. The headset structure improvement of claim 2, wherein the first speaker is mounted in the first chamber and the second speaker is mounted in the second chamber.

4. The earphone structure improvement according to claim 2, further comprising a cover fixed to the housing and covering the first chamber and the second chamber.

The earphone structure improvement according to claim 1, wherein one side of the housing has a plurality of holes.

The earphone structure improvement according to claim 5, wherein one of the first speaker and the second speaker is embedded in at least one of the plurality of holes.

The earphone structure improvement according to claim 1, wherein the first speaker and the second speaker are mounted in parallel on a substrate of the housing.

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