TW201728188A - Headphone - Google Patents

Abstract

A headphone is provided. The headphone includes a housing, a first amplifier and a second amplifier. The housing includes a sound output side, a first layer structure, a first sound path, a first groove, a first recess and a second recess. The first amplifier is disposed in the first recess. The first amplifier includes a first amplifier surface corresponding to the first sound path. The second amplifier is disposed in the second recess. The first sound path includes the first groove, which is located at the first layer structure and extends around the first amplifier and is connected to the sound output side.

Description

headset

The present invention relates to an earphone, and more particularly to a multi-channel earphone.

Each of the earphone units of the conventional multi-channel earphone has a cover, a subwoofer speaker, a plurality of mono speakers, and a plurality of mono speakers, wherein the mono speakers correspond to the front and rear directions of the user. And disposed in the cover body, and the subwoofer speaker is also disposed in the cover body, and the cover body is used as a resonance speaker, and the mono channel speakers are respectively disposed on the mono channels. On the speaker. Therefore, the two earphone units of the multi-channel earphone module can jointly provide the sound source output of at least four channels and two subwoofer channels.

However, the conventional multi-channel earphones can only provide a relatively monotonous sound source output, and the internal speakers are arranged in the same horizontal plane, which cannot realize a diverse auditory environment and a sense of space of the large and small sound fields.

The present invention is an earphone provided for solving the problems of the prior art, comprising a casing, a first speaker and a second speaker. The housing has a sound emitting side, a first layer structure, a first sound emitting passage, a first groove, a first recess and a second recess. The first speaker is disposed in the first concave portion and has a first sounding surface, and the first sounding surface faces the first sounding passage. Second speaker, with Placed in the second recess. The first sound channel includes the first trench and the first layer structure and the first speaker extend around the first speaker and connect to the sound emitting side.

In an embodiment, the housing further has a second sound emitting channel, a second layer structure and an outer cover structure, and the first speaker further has a second speaker surface, the second speaker facing The second sounding passage should be provided, and the first concave portion and the second concave portion are disposed in the second layer structure.

In an embodiment, the earphone further includes: a cross-feeding speaker having a cross-feeding sound surface, the cross-feeding sound surface corresponding to a cross-feeding sound channel; wherein the first speaker, the second speaker, and The cross feed speaker is disposed between the first and second layer structures.

In an embodiment, the housing further has a third sound emitting passage and a fourth sound emitting passage, and the second speaker further has a third sound emitting surface and a fourth sound emitting surface, the first speaker And the second speaker is inclined, and the third and fourth speaker planes are respectively connected to the third and fourth sound channels, and the lengths of the first and third sound channels are respectively greater than the second and fourth sound channels. length.

In an embodiment, the second layer structure has a third recess, the first recess includes a first slope, and the second recess includes a second slope. The first speaker is disposed in the first recess. The first inclined surface contacts the second inclined surface when the second speaker is disposed in the second concave portion, and the cross feed speaker is disposed in the third concave portion.

In one embodiment, the first speaker, the second speaker, and the cross-feeding speaker are respectively magnetically attached to the first recess, the second recess, and the third recess.

In an embodiment, the cross feed channel is in the second layer structure And extending between the outer cover structure and passing through the second layer structure and the first layer structure to the sound emitting side, and the second layer structure comprises an opening portion, a second trench and a first through hole The opening portion corresponds to the cross feed speaker, the second groove communicates with the opening portion and the first through hole, and the cross feed sound path extends along the opening portion, the second groove and the first through hole The second layer structure.

In an embodiment, the cover structure includes a sound chamber connecting the opening portion and the second groove, the cross feed sound channel along the opening portion, the sound chamber, the second groove and The first via extends away from the second layer structure.

In an embodiment, the first layer structure includes a second through hole corresponding to the first through hole, and the cross feed sound channel along the first through hole and the second through hole The second layer structure extends through the first layer structure to the sounding side.

In an embodiment, the second sounding passage extends through the first layer structure and passes through the first layer structure to the sound emitting side.

In one embodiment, the first speaker provides a bass, the second speaker provides a high pitch, and the cross feed speaker provides a cross feed that is synthesized by the high pitch and the bass.

In one embodiment, the sound producing side forms a sound field center point on the front side of the ear canal.

With the earphone of the embodiment of the present invention, the left and right ear can receive the sound of the left and right channels through the configuration of the cross feed speaker. Moreover, the time difference of the sound transmission can be adjusted through the design of the path length and the path shape of the first trench, the second trench, and the third trench. The frequency characteristics can be adjusted through the design of the vent hole and the first groove.

1‧‧‧ headphone

10‧‧‧shell

11‧‧‧ first layer structure

111‧‧‧ openings

112‧‧‧ protruding parts

112’‧‧‧Second trench

113‧‧‧First through hole

114‧‧‧ venting holes

115‧‧‧First recess

116‧‧‧Second recess

117‧‧‧ third recess

118‧‧‧First slope

119‧‧‧second slope

12‧‧‧Second layer structure

121‧‧‧Second through hole

122‧‧‧First trench

122A‧‧‧ comb

123‧‧‧ third through hole

124‧‧‧ third trench

125‧‧‧fourth through hole

13‧‧‧ Cover structure

131‧‧‧Second trench

131’‧‧‧ sound room

15‧‧‧Exhaust air vents

19‧‧‧ sound side

20‧‧‧ low range speaker

201‧‧‧First Yangsheng

202‧‧‧Second Yangsheng

21‧‧‧low-range auxiliary channel

22‧‧‧The main channel of the low range

30‧‧‧High range speaker

301‧‧‧ Third Yangsheng

302‧‧‧ Fourth Yangsheng

31‧‧‧High-range auxiliary channel

32‧‧‧High-range main channel

40‧‧‧ cross feed speaker

41‧‧‧cross feed channel

C‧‧‧ sound field center point

Fig. 1A is a combination diagram showing an earphone of an embodiment of the present invention.

Fig. 1B is an exploded view showing the earphone of the embodiment of the present invention.

Fig. 2A shows a detailed structure of the second layer structure of the embodiment of the present invention.

Fig. 2B is a cross-sectional view showing 2B-2B' in Fig. 1A.

Fig. 3A shows the low range speaker and the low range main channel of the embodiment of the present invention.

Fig. 3B shows the high range speaker and the high range main channel of the embodiment of the present invention.

Figure 3C shows how the low-range speakers, high-range speakers, and cross-feed speakers are fixed.

4A and 4B are views showing a detailed structure of the first layer structure of the embodiment of the present invention.

5A and 5B are views showing an earphone of another embodiment of the present invention.

Figure 6 is a diagram showing the position of the center point of the sound field of the embodiment of the present invention.

Figure 7 shows the case where the cross feed is synthesized by treble and bass.

Referring to FIGS. 1A and 1B, the earphone 1 of the embodiment of the present invention includes a casing 10, a low-range speaker (first speaker) 20, a low-range auxiliary channel (first sound channel), and a high A sound field speaker (second speaker) 30, a high range auxiliary channel (third sound channel), a cross feed speaker 40, and a cross feed sound channel. The housing 10 includes an outer cover structure 13 , a first layer structure 11 , a second layer structure 12 , and an acoustic side 19 . The second layer structure 12 is disposed on the first layer structure 11 . Between the outer cover structures 13, the first layer structure 11 is disposed between the second layer structure 12 and the sound emission side 19. The low range speaker 20 is disposed between the second layer structure 12 and the first layer structure 11 and provides a bass. At least a portion of the bass is sent from the low range speaker 20 through the low range auxiliary channel and from the output side 19. The high range speaker 30 is disposed between the second layer structure 12 and the first layer structure 11 and provides a high pitch. At least a portion of the treble is sent from the high range speaker 30 through the high range auxiliary channel 31 and from the exit side 19. A cross feed speaker 40 is disposed between the second layer structure 12 and the first layer structure 11 and provides a cross feed. The cross feed is sent from the crossover speaker 40 through the cross feedout channel and from the exit side 19.

Referring to FIG. 2A, which shows a detailed configuration of the second layer structure 12, the cross-feed-out sound channel 41 extends over the second layer structure 12 and passes through the second layer structure 12 and the first layer. Structure 11 to the sound side 19. The second layer structure 12 includes an opening portion 111, a protruding portion 112 and a first through hole 113 corresponding to the cross feed speaker 40. Referring to Fig. 2B, a cross-sectional view of 2B-2B' in Fig. 1A is shown. The outer cover structure 13 includes a second groove 131 corresponding to the opening portion 111, the protruding portion 112 and the first through hole 113. The cross-feeding sound channel 41 extends away from the second layer structure 12 along the opening portion 111, the second trench 131, and the first through hole 113. The first layer structure 11 includes a second through hole 121 corresponding to the first through hole 113 along the first through hole 113 and the second through hole 121. The second layer structure 12 extends through the first layer structure 11 to the sound emitting side 19.

In this embodiment, the second trench 131 is a linear trench.

Referring to FIG. 2A, in an embodiment, the second layer structure 12 further includes a plurality of venting holes 114 corresponding to the low range speaker 20.

Referring to FIGS. 3A and 3B, the tilt-set low-range speaker 20 has a first speaker plane 201 and a second speaker plane 202, and the first speaker plane 201 corresponds to the low-range auxiliary channel (the first sound-passing channel). The second speaker plane 202 directly outputs at least a portion of the bass through the low range main channel (second sound channel) 22 toward the sound output side 19. The tilted high-range speaker 30 has a third sounding surface 301 and a fourth sounding surface 302, the third sounding surface 301 corresponding to the high-range auxiliary channel, and the fourth sounding surface 302 is transmitted through a high-range main channel ( The fourth sound channel 32 outputs at least a portion of the treble directly toward the sound output side 19. However, the bass provided by the low range speaker 20 is based on the design of the tilted low range speaker 20, and the low range provided by the high range speaker 30 is obtained by the low range auxiliary channel 21, based on the tilt. The design of the high range speaker 30 is achieved by the high range auxiliary channel 31 to produce a stereo sound effect. The length of the low range auxiliary channel 21 is much larger than the length of the low range main channel 22, the length of the high range auxiliary channel 31 being much larger than the length of the high range main channel 32.

Referring to FIG. 3C, which shows the manner in which the low-range speaker 20, the high-range speaker 30, and the cross-feed speaker 40 are fixed, the second layer structure 12 includes a first recess 115, a second recess 116, and a third recess 117. The first recess 115 includes a first slope 118, and the second recess 116 includes a second slope 119. The bass speaker 20 is embedded in the first recess 115 and contacts the first slope 118. The high-range speaker 30 The second recessed portion 116 is embedded in the second recessed portion 119, and the cross feed speaker 40 is embedded in the third recessed portion 117. In this embodiment, the low-range speaker 20, the high-range speaker 30, and the cross-feed speaker 40 are respectively magnetically attached to the first recess 115, the second recess 116, and the third recess 117.

Referring to Figures 4A and 4B, the detail of the first layer structure 11 is shown. The low-range auxiliary channel 21 extends through the first layer structure 11 and passes through the first layer structure 11 to the sound-emitting side 19. The first layer structure 11 includes a first trench 122 and a third via hole 123. The first trench 122 extends at least around the low-range speaker 20 and is connected to the third via hole 123. The channel 21 extends away from the first layer structure 11 along the first trench 122 and the third via 123.

In an embodiment, the first trench 122 includes a comb portion 122A. The comb portion 122A can provide an effect of sound delay.

Referring to FIGS. 4A and 4B, the first layer structure 11 includes a third trench 124 and a fourth via 125. At least a portion of the third trench 124 extends around the high-range speaker 30 and connects the fourth via. A hole 125, the high-range auxiliary channel 31 extends along the third trench 124 and the fourth via 125 away from the first layer structure 11. In an embodiment, at least a portion of the third trench 124 surrounds the low range speaker 20.

Referring to FIGS. 4A and 4B , in the embodiment, the third through hole 123 is adjacent to the fourth through hole 125 , and the second through hole 121 is located between the low range speaker 20 and the high range speaker 30 . The low range speaker 20 is located between the second through hole 121 and the third through hole 123. In other words, the comb portion 122A, the second through hole 121, the third through hole 123, and the fourth through hole 125 are arranged around the low-range speaker 20.

With the earphone of the embodiment of the present invention, the left and right ear can receive the sound of the left and right channels through the configuration of the cross feed speaker. Moreover, the time difference of the sound transmission can be adjusted through the design of the path length and the path shape of the first trench, the second trench, and the third trench. The frequency characteristics can be adjusted through the design of the vent hole and the first groove.

In an embodiment, the cross feed speaker 40 is at a low volume when the volume of the low range speaker 20 and the high range speaker 30 is at a high volume. anti- When the volume of the low range speaker 20 and the high range speaker 30 is at a low volume, the cross feed speaker 40 is at a high volume, thereby providing a stereoscopic feeling of sound.

Referring to FIG. 1A, in an embodiment, the earphone further includes an exhaust air vent 15, which is formed on the side of the casing 10 and communicates with outside air to make the sound more natural.

Referring to Figures 5A and 5B, there is shown an earphone according to another embodiment of the present invention, wherein the cross-feeding sound path 41 extends between the second layer structure 12 and the outer cover structure 13 and passes through the The second layer structure 12 includes an opening portion 111, a second trench 112', and a first through hole 113. The opening portion 111 is opposite to the first layer structure 12 and the sound emitting side 19. The speaker 40 should be crossed, the second groove 112' communicates with the opening portion 111 and the first through hole 113, and the cross feed sound channel 41 along the opening portion 111, the second groove 112' and the first The through hole 113 extends away from the second layer structure 12. The cover structure 13 includes a sound chamber 131' connecting the opening portion 111 and the second groove 112'. The cross feed sound channel 41 along the opening portion 111, the sound chamber 131', The second trench 112 ′ and the first via 113 extend away from the second layer structure 12 . The sound chamber 131' can be used to adjust the frequency characteristics.

Referring to Fig. 6, in the embodiment of the present invention, the low-range speaker 20, the high-range speaker 30, and the cross-feed speaker 40 are small in size and high in space design flexibility, so that the sound field center point C can be located on the front side of the ear canal.

Referring to FIG. 7, in an embodiment, the cross-feeding system is synthesized by the high-pitched sound and the low-pitched sound, and the driving acoustic electronic filter is used to produce (synthesize) transfer function characteristics, and the principle adopts a head transfer function theory. Thus, a good head positioning feeling and a front positioning feeling can be obtained.

Although the invention has been disclosed above in terms of specific preferred embodiments, It is not intended to limit the invention, and any modification and refinement may be made without departing from the spirit and scope of the invention, and the scope of the invention is defined by the scope of the appended claims. Subject to it.

1‧‧‧ headphone

10‧‧‧shell

11‧‧‧ first layer structure

12‧‧‧Second layer structure

13‧‧‧ Cover structure

19‧‧‧ sound side

20‧‧‧ low range speaker

30‧‧‧High range speaker

40‧‧‧ cross feed speaker

Claims (12)

An earphone comprising: a casing having a sound emitting side, a first layer structure, a first sounding passage, a first groove, a first recess and a second recess; a first speaker, configured The first concave portion has a first sounding surface, the first sounding surface facing the first sound emitting passage; and a second speaker disposed in the second concave portion; wherein the first sound emitting passage comprises The first trench and the first layer structure extend from the first speaker and surround the first speaker and connect to the sound emitting side. The earphone of claim 1, wherein the housing further has a second sound emitting passage, a second layer structure and an outer cover structure, and the first speaker further has a second sound emitting surface. The second speaker is facing the second sounding passage, and the first recess and the second recess are disposed in the second layer structure. The earphone of claim 2, further comprising: a cross-feeding speaker having a cross-feeding sound surface, the cross-feeding sound surface corresponding to a cross-feeding sound channel; wherein the first speaker, the first speaker The second speaker and the cross feed speaker are disposed between the first and second layer structures. The earphone of claim 3, wherein the housing further has a third sound output channel and a fourth sound output channel, and the second speaker further has a third sound surface and a fourth a sound surface, the first speaker and the second speaker are inclined, and the third and fourth speaker faces respectively correspond to the third and fourth speakers The sound channels are connected, and the lengths of the first and third sound channels are respectively greater than the lengths of the second and fourth sound channels. The earphone of claim 4, wherein the second layer structure has a third recess, the first recess includes a first slope, and the second recess includes a second slope, the first speaker configuration The first inclined surface is in contact with the first inclined surface, and the second speaker is disposed in the second concave portion to contact the second inclined surface, and the cross feed speaker is disposed in the third concave portion. The earphone of claim 5, wherein the first speaker, the second speaker and the cross-feeding speaker are respectively magnetically attached to the first recess, the second recess and the third recess. The earphone of claim 5, wherein the cross feed sound path extends between the second layer structure and the outer cover structure, and passes through the second layer structure and the first layer structure to the out a sound side, and the second layer structure includes an opening portion, a second groove and a first through hole, the opening portion corresponding to the cross feed speaker, the second groove communicating with the opening portion and the first through hole The cross-feeding sound channel extends away from the second layer structure along the opening portion, the second trench, and the first through hole. The earphone of claim 5, wherein the outer cover structure comprises a sound chamber, the sound chamber connecting the opening portion and the second groove, the cross feed sound channel along the opening portion, the sound The chamber, the second trench and the first via extend away from the second layer structure. The earphone of claim 7, wherein the first layer structure comprises a second through hole corresponding to the first through hole, the cross feed sound channel extending along the first through hole and the second through hole from the second layer structure through the first layer structure To the sound side. The earphone of claim 7, wherein the second sounding passage extends in the first layer structure and passes through the first layer structure to the sound emitting side. The earphone of claim 3, wherein the first speaker provides a bass, the second speaker provides a high pitch, and the cross feed speaker provides a cross feed, the cross feed is composed of the high pitch and the The bass is synthesized. The earphone of claim 3, wherein the sound emitting side forms a sound field center point on the front side of the ear canal.