TWI533712B - In-ear canalphone - Google Patents

Description

earbuds

The present invention relates to an in-ear earphone, and more particularly to an in-ear earphone that can be used to hear an external sound by providing an external passage.

Nowadays, an in-ear earphone is provided in the industry, which is to place an earphone with a sounding unit in the ear canal of the user. However, because the in-ear earphone and the ear canal of the user are excellent in sealing, the earphone is worn. Users often do not hear outside sounds. However, people often wear headphones while walking. If they wear traditional in-ear headphones, they may not hear the warning sounds on the road (such as horn sounds), which may cause danger when walking.

The reason is that the present inventors have felt that the above problems can be improved, and that the present invention has been deliberately studied and used in conjunction with the theory, and a present invention which is reasonable in design and effective in improving the above problems has been proposed.

The technical problem to be solved by the present invention is to provide an in-ear earphone that can hear external sounds.

In order to solve the above technical problem, an in-ear earphone according to the present invention includes an earphone body, an earplug and a sounding unit. The earphone body includes a first wall and a second wall. The first wall surrounds and forms a cavity. The second wall and the first wall enclose an outer channel, and one end of the outer channel communicates with the end of the cavity to the user. The other end of the ear canal and the outer passage are connected to the outside. The earplug corresponds to the outer passage and one end of the chamber, and the earplug fits in the ear canal of the user. The sounding unit is disposed in the chamber.

The invention has the effect of being able to hear external sound while wearing the in-ear headphones.

In order to further understand the technology adopted by the present invention for achieving the intended purpose, The method and function of the present invention are described in the following detailed description and drawings of the present invention. It is believed that the objects, features and characteristics of the present invention can be further understood and understood. It is not intended to limit the invention.

1‧‧‧ in-ear headphones

10‧‧‧ headphone body

11‧‧‧ first wall

111‧‧‧ curved bottom

112‧‧‧ sound outlet

113‧‧‧Inside

114‧‧‧

12‧‧‧ second wall

121‧‧‧Transfer Department

1211‧‧‧ sound tube

1212‧‧‧Cone section

1213‧‧‧ 容管

1214‧‧‧ convex

122‧‧‧Cylinder

13‧‧‧ chamber

131‧‧‧ openings

14‧‧‧External access

141‧‧‧ openings

15‧‧‧Connecting tube

16‧‧‧Top cover

161‧‧‧ hole

17‧‧‧Connecting block

20‧‧ Earplugs

21‧‧‧Opening

30‧‧‧ vocal monomer

31‧‧‧ headphone cable

40‧‧‧Stainproof paper

50‧‧‧ activity cover

60‧‧‧ Tuning paper

1'‧‧‧In-ear headphones

10’‧‧· headphone body

12’‧‧‧ second wall

1 is an exploded perspective view of an in-ear earphone of the present invention.

2 is another perspective exploded view of the in-ear earphone of the present invention.

Fig. 3 is a cross-sectional perspective view taken along line A-A of Fig. 1;

4 is a cross-sectional view taken along line A-A of FIG. 1.

Fig. 5 is a cross-sectional perspective view taken along line B-B of Fig. 1;

Figure 6 is a cross-sectional view taken along line B-B of Figure 1.

FIG. 7 is a schematic diagram of the combination of the earphone body of the in-ear earphone of the present invention.

Figure 8 is a partial perspective view of another embodiment of the in-ear earphone of the present invention.

Fig. 9 is a cross-sectional perspective view taken along line C-C of Fig. 8;

Fig. 10 is a cross-sectional view taken along line C-C of Fig. 8.

1 is an exploded perspective view of the in-ear earphone 1 of the present invention. As shown in FIG. 1, the present invention provides an in-ear earphone 1 comprising an earphone body 10, an earplug 20 and a sounding unit 30 (shown in FIG. 4). The sounding unit 30 is received in the earphone body 10 (refer to FIG. 4), and the earplug 20 is provided with an opening 21 (shown in FIG. 2). The earplug 20 is sleeved at one end of the earphone body 10 with the opening 21, so that The in-ear earphone 1 can accommodate the earplug 20 in the ear canal (not shown) of the user, and conduct the sound emitted by the sounding unit 30 to the ear canal of the user through the opening 21. The earplug 20 is made of a flexible and soft material such as silicone rubber or high-density sponge, and the material selection can be considered in terms of cost, sound quality, comfort, and the like. The outer surface of the earplug 20 is attached to the ear canal of the user, and the earplug 20 is stably and comfortably accommodated in the ear canal of the user due to the material, and the earphone body 10 and the ear canal are sealed and the external sound is isolated.

In order to make the expression of the schema more concise and clear, the sounding unit 30 is only drawn in the section Intent (Figure 4, Figure 6, Figure 10). The earplugs 20 are not drawn in a cross-sectional perspective view (Fig. 3, Fig. 5, Fig. 9), but are drawn in a cross-sectional view (Fig. 4, Fig. 6, Fig. 10).

2 is another perspective exploded view of the in-ear earphone 1 of the present invention. As shown in FIG. 1 and FIG. 2, the earphone body 10 includes a first wall 11, a second wall 12, a top cover 16, and a plurality of connecting blocks 17. The plurality of connecting blocks 17 are connected to the first wall 11 and the second wall 12, and the first wall 11 surrounds and forms a chamber 13. The first wall 11 and the second wall 12 together form an outer passage 14, and the outer passage 14 is adjacent to One end of the ear canal of the user communicates with the end of the chamber 13 adjacent to the ear canal of the user to the ear canal of the user, and the other end of the external passage 14 communicates with the outside, thereby connecting the external channel 14 to the outside sound. The ear canal of the user. The top cover 16 is disposed at an end of the chamber 13 away from the ear canal of the user.

In the first embodiment of the present invention, the first wall 11 and the second wall 12 are substantially concentric, and the first wall 11 is spaced apart from the inner edge of the second wall 12 such that the first wall 11 and the second wall 12 The space between them forms an outer passage 14, which surrounds the chamber 13 to form a chamber. The present invention also provides a second embodiment, the detailed configuration of which will be described later.

3 is a cross-sectional perspective view taken along line A-A of FIG. 1, and FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1. As shown in FIGS. 3 and 4, the first wall 11 has a cylindrical structure to form the chamber 13, so that the first wall 11 has a barrel 114. The two ends of the first wall 11 are not closed, so that both ends of the chamber 13 are open ends, and the top cover 16 is used to close the end of the first wall 11 away from the ear canal of the user. The first wall 11 is tapered toward the end of the ear canal of the user to form an arcuate bottom portion 111, and a sound outlet 112 is formed at the center of the curved bottom portion 111. The first wall 11 is directed to the user by the periphery of the sound outlet 112. The direction of the ear canal extends to form an inner tube 113. The inner diameter of the sound outlet 112 is smaller than the inner diameter of the cylindrical structure (chamber 13) of the first wall 11, and the inner diameter of the inner tube 113 is decreased toward the ear canal of the user, so that the sound (sound wave) can pass through the inner tube 113. concentrated.

As shown in FIG. 3 and FIG. 4, the second wall 12 includes an adapter portion 121 and a cylindrical portion 122. The adapter portion 121 is coupled to one end of the cylindrical portion 122 adjacent to the ear canal of the user. The adapter portion 121 has a substantially funnel-shaped structure, and the adapter portion 121 includes a tapered portion 1212, a receiving tube 1213, and a sound tube 1211. The inner end of the tapered section 1212 has a larger inner diameter. At one end of the cylindrical portion 122, the inner end of the tapered portion 1212 having a smaller inner diameter extends toward the ear canal of the user to form a receiving tube 1213, and one end of the receiving tube 1213 forms a sound tube 1211 toward the ear canal of the user. The inner diameter of the receiving tube 1213 is substantially equal to the minimum inner diameter of the tapered section 1212, and the inner diameter of the sound tube 1211 is smaller than the inner diameter of the receiving tube 1213. In the embodiment of the present invention, the outer edge of one end of the sound tube 1211 near the ear canal of the user extends radially to form a convex portion 1214. In the embodiment of the present invention, the adapter portion 121 and the cylindrical portion 122 are two bodies separately manufactured, which facilitates assembly of the in-ear earphone 1 and is easy to manufacture.

The inner diameter of the cylindrical portion 122 is larger than the outer diameter of the barrel 114 of the first wall 11, the inner diameter of the tapered portion 1212 of the adapter portion 121 is larger than the outer diameter of the corresponding curved bottom portion 111, and the inner diameter of the receiving tube 1213 is larger than the inner tube. The outer diameter of 113. Therefore, the tubular body 114 of the first wall 11 is spaced apart from the cylindrical portion 122 to form an outer passage 14 . The curved bottom portion 111 is disposed in the tapered portion 1212 at intervals. The inner tube 113 is disposed in the receiving tube 1213 at intervals. The aforementioned outer passage 14 is formed between the first wall 11 and the second wall 12. The width of the outer passage 14 is smaller than the inner diameter of the chamber 13, and the width thereof can be adjusted according to the requirements of the in-ear headphones 1.

Fig. 5 is a cross-sectional perspective view taken along line B-B of Fig. 1, and Fig. 6 is a cross-sectional view taken along line B-B of Fig. 1. As shown in FIG. 2, FIG. 5 and FIG. 6, the connecting block 17 is evenly disposed between the first wall 11 and the cylindrical portion 122 of the second wall 12, and the first wall 11 and the second wall 12 may be spaced apart. The aforementioned concentric circle structure. The top cover 16 is provided with a hole 161. The top cover 16 is disposed at an end of the first wall 11 away from the ear canal of the user, that is, the top cover 16 substantially closes the end of the chamber 13 away from the ear canal of the user.

FIG. 7 is a schematic diagram of the combination of the earphone body 10. Referring to FIG. 3, FIG. 4 and FIG. 7, the sounding unit 30 is connected with a headphone cable 31, and the earphone cable 31 is connected to the electronic device to transmit a signal to the sounding unit 30, so that the diaphragm of the sounding unit 30 (not shown) Generate vibration. The sounding unit 30 is disposed in the chamber 13, and the sounding unit 30 is adjacent to the curved bottom portion 111, and the earphone wire 31 passes through the hole 161 of the top cover 16. The earplug 20 is sleeved with the opening 21 and sleeved on the sound tube 1211. The convex portion 1214 of the sound tube 1211 is disposed so that the earplug 20 can be more stably sleeved on the sound tube 1211. The sounding unit 30 can select different driving modes such as moving coil type, electrostatic type and balanced armature type according to factors such as cost, frequency, sound quality and service life.

Since the outer surface of the earplug 20 fits and closes the ear canal of the user, an acoustic cavity capable of changing the air pressure is formed between the sounding unit 30 and the ear canal of the user. The sounding unit 30 vibrates the diaphragm (not shown) of the sounding unit 30 due to the signal, causing a difference in air pressure between the chamber 13 and the aforementioned acoustic chamber to generate sound and assist in resetting the diaphragm.

The sound generated by the sounding unit 30 enters the inner tube 113 from the sound outlet 112 and is then transmitted to the sound tube 1211. The outside sound enters through one end of the outer passage 14 and is transmitted from the other end of the outer passage 14 to the sound tube 1211. That is, the sound of the sounding unit 30 and the external sound system are respectively merged from the inner tube 113 and the outer passage 14 to the sound tube 1211, and passed through the opening 21 of the earplug 20 to be transmitted to the ear canal of the user. Since the inner diameter of the inner tube 113 is tapered, the sound generated by the sounding unit 30 is more concentrated without being disturbed by the external sound of the outer passage 14. And because the first wall 11 partitions the outer channel 14 and the chamber 13, the chamber 13 is substantially closed to avoid leakage. Moreover, since the width of the outer passage 14 is not large, the air pressure of the acoustic chamber can be adjusted in addition to the external sound, so that the width of the outer passage 14 can be adjusted according to the specifications of the sounding unit 30.

8 is a partial perspective view of another embodiment of the in-ear earphone 1' of the present invention, FIG. 9 is a cross-sectional perspective view taken along line C-C of FIG. 8, and FIG. 10 is a cross-sectional view taken along line C-C of FIG. As shown in FIG. 8, FIG. 9, and FIG. 10, the present invention provides a second embodiment. In the second embodiment, the first wall 11 of the earphone body 10' surrounds the forming chamber 13, and the second wall 12' is disposed on One side of the first wall 11 and the second wall 12' are curved such that an outer passage 14 is formed between the first wall 11 and the second wall 12'. The first wall 11 and the second wall 12' extend toward the ear canal of the user to form a connecting tube 15, so that the opening 13 is exposed in the connecting tube 15 of the chamber 13, and an opening 141 is exposed in the connecting tube 15 through the outer passage 14. The earplug 20 is sleeved in the connecting tube 15 with an opening 21 . In the second embodiment of the present invention, the second wall 12' is mounted on one side of the first wall 11, and this arrangement enables the manufacture of the earphone body 10'. It is relatively simple and the width of the outer channel 14 is defined by the second wall 12' so that the user can select the second wall 12' as desired to define the size of the desired outer channel 14. The second wall 12' may also be formed by extending from the first wall 11, and is not limited thereto.

The sound generating unit 30 is disposed in the chamber 13, and the sound generated by the sounding unit 30 is transmitted to the opening 21 of the earplug 20 via the opening 131 of the connecting tube 15 through the chamber 13, and the external sound is transmitted to the outside through the external passage 14. The passage 14 is exposed to the opening 141 of the connecting tube 15 for transmission to the opening 21 of the earplug 20. That is, the sound generated by the sounding unit 30 and the external sound system are respectively merged from the opening 131 and the opening 141 to the opening 21 of the earplug 20 to be transmitted to the ear canal of the user.

As shown in FIG. 5, in the embodiment of the present invention, the in-ear earphone 1 further includes a dustproof paper 40. The dustproof paper 40 is disposed at an end of the external passage 14 that communicates with the outside, so that external dust does not enter the external passage 14 and thus The in-ear headphones 1 are contaminated. The dustproof paper 40 is made of a gas permeable material so that external sound can still penetrate the dustproof paper 40 into the outer passage 14. Moreover, the dustproof paper 40 can also have a tuning function, so that the external sound does not completely enter the external passage 14, so that the sound transmitted to the ear canal of the user is still dominated by the sound generated by the sounding unit 30.

As shown in FIG. 1 , in the embodiment of the present invention, the in-ear earphone 1 further includes a tuning paper 60. The tuning paper 60 has a ring structure, and the inner diameter of the tuning paper 60 is substantially equal to the inner diameter of the sound tube 1211, and the tuning paper 60 is The outer diameter is substantially equal to the inner diameter of the receiving tube 1213, and the tuning paper 60 is made of a semi-breathable material. The tuning paper 60 is disposed on the second wall 12 to accommodate the tube 1214 such that when the first wall 11 and the second wall 12 together form the outer channel 14, the tuning paper 60 can enclose the outer channel 14. The sound is passed through the tuning paper 60 to change the sound quality of the in-ear headphones 1.

As shown in FIG. 10, in the embodiment of the present invention, the in-ear earphone 1 can also include a movable cover 50. The movable cover 50 is disposed at an end of the external passage 14 that communicates with the outside, so that the user can select whether to pass through the external passage 14. And hear the voice of the outside world.

In summary, the in-ear earphone of the present invention has the following features:

1. The first wall and the second wall are used to define the chamber and the external passage, so that the external sound can be transmitted to the ear canal of the user through the external passage without affecting the air pressure of the chamber.

2. Using the first wall to extend to form an inner tube, so that the sound produced by the sounding unit can be more concentrated without being affected by the external sound of the external passage.

3. The top cover is placed at one end of the chamber and the earphone wire is passed through the hole of the top cover, so that the chamber is substantially in a closed space to reduce leakage.

4. Use the tuning paper to set in the outer channel, so that the gas will pass through the tuning paper to change the sound quality.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1‧‧‧ in-ear headphones

11‧‧‧ first wall

111‧‧‧ curved bottom

112‧‧‧ sound outlet

113‧‧‧Inside

114‧‧‧

12‧‧‧ second wall

121‧‧‧Transfer Department

1211‧‧‧ sound tube

1212‧‧‧Cone section

1213‧‧‧ 容管

1214‧‧‧ convex

122‧‧‧Cylinder

13‧‧‧ chamber

14‧‧‧External access

16‧‧‧Top cover

161‧‧‧ hole

20‧‧ Earplugs

21‧‧‧Opening

30‧‧‧ vocal monomer

31‧‧‧ headphone cable

60‧‧‧ Tuning paper

Claims (10)

An in-ear earphone is placed on a user's ear canal. The in-ear earphone includes: a headphone body including a first wall and a second wall, the first wall enclosing a cavity, the second wall and the The first wall surrounds an outer passage, and one end of the outer passage communicates with one end of the chamber to the ear canal of the user, and the other end of the outer passage communicates with the outside; an earplug corresponding to the outer passage And an end of the chamber, the earplug is attached to the ear canal of the user; and a sounding unit is disposed in the chamber; wherein the first wall and the second wall are concentrically arranged at intervals The first wall is disposed in the second wall, and the first wall and the second wall include at least one connecting block; wherein the first wall has a cup-shaped structure, and the first wall is adjacent to one end of the ear canal of the user The bottom of the arc is provided with a sound outlet; wherein the second wall is adjacent to the end of the ear canal of the user as an adapter portion, and the other end of the second wall is a cylindrical portion, the adapter portion In a funnel-like structure, the adapter is near the end of the ear canal of the user. The other end of the adapter is a tapered section, and the first wall is disposed at the tapered portion of the adapter portion with the curved bottom portion, and the sound outlet corresponds to one end of the sound tube, The earplug is sleeved on the sound tube. The in-ear earphone of claim 1, wherein one end of the second wall and one end of the first wall extend toward the ear canal of the user to form a connecting tube, and the connecting channel and the cavity are An opening is formed in each of the connecting tubes, and the earplug is sleeved on the connecting tube. The in-ear earphone of the first aspect of the invention, further comprising a dustproof paper cover disposed at the other end of the outer passage. The in-ear earphone of claim 1, further comprising a tuning paper disposed in the outer channel. The in-ear earphone of claim 1, wherein the earphone body further comprises a top cover disposed at one end of the first wall and covering the chamber The other end. The in-ear earphone according to claim 5, wherein the top cover is provided with a hole, and the sounding unit is connected with a headphone wire, and the earphone wire passes through the hole. The in-ear earphone of claim 1, further comprising a movable cover movably covering the other end of the outer passage. The in-ear earphone of claim 1, wherein the first wall further comprises an inner tube formed by extending a peripheral edge of the sound outlet toward the ear canal of the user, the adapter further comprising a receiving tube The accommodating tube is disposed between the conical section and the sound tube. The inner tube is disposed in the accommodating tube, and an outer diameter of the inner tube is smaller than an inner diameter of the accommodating tube. The in-ear earphone of claim 8, wherein the inner diameter of the receiving tube is larger than the inner diameter of the sound tube. The in-ear earphone of claim 8, wherein the inner tube has an inner diameter that decreases toward the user's ear.