TWM512866U - Off-axis dual-tone region earphone - Google Patents

Description

Off-axis dual-range headphones

The present invention relates to a plug-in earphone construction, in particular a off-axis dual-range earphone.

Advances in multimedia audio and video technology have enabled people to enjoy high-quality multimedia audio and video information at any time. Among many known audio and video playback devices, headphones are one of the main devices for providing audio. According to the wearing mode of the earphone, it can be basically divided into an earmuff type earphone and a stuffing type earphone. The former is the earliest earphone form, although it can provide superior sound effect, but the volume is large; the latter has a light volume and The advantage of being easy to carry, but limited by the condition that the size of the sounding unit is small, the sound effect of the plug-in earphone is usually not as good as the former.

The earphones known in the early days have only one horn, and most of them are moving horns in the middle and low range. The sound output of the high range is not good enough to meet the user's requirements for the sound quality of the headphones in the middle and high range. In order to solve the above problems, a plug-in type earphone including a middle-low range speaker and a medium-high range speaker has been proposed, for example, a newly-approved Taiwanese patent M493215 "dual-frequency coaxial earphone", which has been proposed as a dual-frequency coaxial earphone, including The moving coil type speaker unit, the cover body and the high-pitched speaker unit; the moving coil type speaker unit comprises a moving coil type bracket and a moving coil type diaphragm, the moving coil type diaphragm is located on the moving coil type bracket; the cover body covers the moving coil The bracket, the cover body and the moving coil bracket are enclosed together to form a tuning cavity, the cover body comprises at least one tuning hole, and the tuning cavity is connected to at least one tone The sound hole; the high-pitched sound unit is disposed on the cover body, and one of the high-pitched sound unit faces the tuning cavity, and the tuning cavity is located between the moving coil diaphragm and the high-pitched sound unit.

The moving coil type speaker unit and the high-pitched speaker unit of the aforementioned patented technology adopt coaxial design, which is advantageous for component assembly, but the sound output of the moving coil type speaker unit is blocked by the high-pitched sound unit, although there is a tuning hole And the tuning cavity can be used for the output of the mid-bass sound produced by the moving coil speaker unit, but still can not provide good smoothness and ensure the fidelity of sound transmission. On the other hand, due to the coaxial design, the shape is inverted L-shaped, which has poor matching with the shape of the human ear canal and the external auditory canal, does not meet the requirements of ergonomics, and is easy to loosen due to poor adhesion.

One of the purposes of this creation is to solve the above-mentioned problems of the known plug-in earphones, and to provide a high-quality and clear dual-range (mid-low range and mid-high range) output sound, and to have comfortable wearability and is not easy. Off-axis off-axis dual-range headphones.

To achieve the above objective, an embodiment of the present invention provides at least one housing, a first speaker, and a second speaker. The housing has a hollow inner cavity and a cavity communicating with the inner cavity. a sound hole, the inner cavity includes a front cavity and a rear cavity, the axis of the front cavity is different from the axis of the rear cavity and intersects, the sound hole communicates with the inner cavity and the axis of the front cavity The first speaker and the second speaker are placed in the inner cavity, the first speaker is a mid-range speaker and is output through the sound hole, and the second speaker is located near the front cavity of the first speaker. The offset position of one side of the second speaker is a mid-high range speaker and is closer to the sound hole of the front cavity than the first speaker.

In an embodiment of the present invention, the first horn is placed at an intersection of the axis of the front cavity and the axis of the rear cavity.

In an embodiment of the present invention, the sounding axis of the first speaker is parallel or coaxial with the axis of the front cavity.

In an embodiment of the present invention, the first speaker is a moving ring speaker, and the second speaker is a ceramic speaker.

In an embodiment of the present invention, a gap is formed between the second speaker and the first speaker.

In an embodiment of the present invention, the outer casing includes a front shell and a rear shell, the front shell is hollow to form a front cavity, the rear shell is hollow to form a rear cavity, the front shell has the sound hole, and the front shell can be combined with the rear shell They are combined with each other into an outer casing having the inner cavity.

In an embodiment of the present invention, the front case has a sound guide tube for forming the sound hole therein.

In an embodiment of the present invention, a soft earmuff can be sleeved on the sound tube of the front case.

In an embodiment of the present invention, the first speaker and the second speaker are both fixed to the front case, which facilitates assembly of the components.

In an embodiment of the present invention, the front and rear shells are combined with one another by snapping.

In an embodiment of the present invention, a dustproof net is disposed on the sound hole for preventing dust or foreign matter from entering the inner cavity.

According to the technical content of the foregoing creation, the present off-axis dual-range earphone has the following advantages and effects, wherein the second speaker does not block the output of the first speaker, and the second speaker is a medium-high range speaker. The eardrum closer to the human ear, the short wave of the treble is output to the eardrum The small size allows for high quality and clear mid-high range sound output. The front shell and the rear shell form a shell with a folded outer shape, which can be adapted to the shape of the human ear canal and the outer ear, has comfortable wearing property, and has better positioning effect and is not easy to fall off.

The following description of the drawings is a preferred embodiment for the purpose, embodiments, technical features and functions of the present invention, and is not intended to limit the present invention.

10‧‧‧ first speaker

20‧‧‧second speaker

30‧‧‧ front shell

31‧‧‧ first opening

32‧‧‧ sound hole

33‧‧‧ ribs

34‧‧‧ bracket

35‧‧‧Guide tube

40‧‧‧back shell

41‧‧‧second opening

42‧‧‧ venting holes

43‧‧‧Kap

44‧‧‧Outlet hole

50‧‧‧Soft earmuffs

51‧‧‧Dust net

C‧‧‧ lumen

C1‧‧‧ front cavity

C2‧‧‧ rear cavity

G‧‧‧ gap

S‧‧‧ Shell

The axis of the X1‧‧‧ front cavity

X2‧‧‧Axis of the posterior cavity

Figure 1 is an exploded perspective view of an embodiment of the present creation.

Figure 2 is a cross-sectional structural view of the embodiment of Figure 1.

FIG. 3 is a partial structural view of an embodiment of the present invention, showing the second speaker device in the front case.

Figure 4 is an exploded perspective view of another embodiment of the present creation.

Figure 5 is a cross-sectional structural view of the embodiment of Figure 4;

First, please refer to FIG. 1 and FIG. 2 , which are an exploded view of a structure of an off-axis dual-range earphone and a cross-sectional structure diagram thereof. Since the earphones of the left ear and the right ear are symmetrical to each other, the following is coordinated. The drawings only show the configuration of the earphones in which one of the ears is loaded. As shown in FIG. 1 and FIG. 2, an embodiment of the present invention provides at least one housing S, a first speaker 10, and a second speaker 20. In an embodiment, the first speaker 10 is a moving ring speaker, and the second speaker 20 is a ceramic speaker.

The outer casing S has a hollow inner cavity C and a sound hole 32 communicating with the inner cavity C. The inner cavity C includes a front cavity C1 and a rear cavity C2, and the sound hole 32 communicates with the front cavity C1, and the front cavity C1 The axis X1 is different from the axis X2 of the rear cavity C2 and intersects. Therefore, a combination of the front shell and the rear shell The outer casing of the turning shape can be adapted to the shape of the ear canal and the outer ear of the human body, has comfortable wearing property, and has better positioning effect and is not easy to fall off.

In a preferred embodiment, the outer casing S includes a front casing 30 and a rear casing 40. The front casing 30 is hollow to form the front cavity C1, and the rear casing 40 is hollow to form the rear cavity C2. The front casing 30 has a front and a front. a first opening 31 communicating with the cavity C1 and the sound hole 32. The rear case 40 has a second opening 41 communicating with the rear cavity C2 and a wire opening 44 through which the wire is passed. An opening 31 can be combined with the second opening 41 of the rear case 40 to form a housing S having a cavity C. In one embodiment, the front housing 30 has a sound tube 35 for forming the sound hole 32 therein. In one embodiment, the rear housing 40 has a venting opening 42 in communication with the outside of the housing S on the back side of the first horn 10 for adjusting the internal pressure of the inner chamber C. In one embodiment, the first opening 31 of the front case 30 and the second opening 41 of the rear case 40 respectively have a rib 33 and an engaging groove 43 (the positions of the rib and the engaging groove are interchangeable), and the rib 33 The first horn 10 and the second horn 20 are fixed to the front case 30 (see FIGS. 2 and 3), and the rib 33 and the engaging groove are used. 43 The front case 30 and the rear case 40 can be easily combined, and the assembly is convenient.

In a preferred embodiment of the present invention, the first horn 10 is placed at the intersection of the axis X1 of the front chamber C1 and the axis X2 of the rear chamber C2. In one embodiment, the vocal axis of the first horn 10 is parallel to the axial direction X2 of the rear cavity C2; in a preferred embodiment, as shown in FIG. 2, the vocal axis of the first horn 10 and the rear cavity C2 The axial direction X2 is a coaxial relationship. In one embodiment, the sound emitting axis of the first speaker 10 intersects or is not parallel with the sounding axis of the second speaker 20, and the second speaker 20 is located at a side of the first speaker 10 near the front cavity C1, preferably, the second The horn 20 is located on one side of the sounding direction of the first horn 10, and the second horn 20 is closer to the sound hole 32 of the front cavity C1 than the first horn 10, and the second horn 20 and the first horn 10 have a Gap G, in an example, the front cavity C1 of the front case 30 has a raised one The frame 34 is for supporting and fixing the second horn 20, and has the gap G between the two horns 20 and the first horn 10.

In one embodiment, the first horn 10 is disposed at the first opening 31 of the front case 30, and the second horn 20 is disposed at an offset position of the front cavity C1 of the front case 30. Preferably, the position of the second horn 20 is deviated. The connection between the first horn 10 and the sound hole 32 can also be as shown in FIG. 2, and the position of the second horn 20 is offset from the side of the axis X1 of the front cavity C1. Therefore, the second speaker 20 does not block the output of the first speaker 10. On the other hand, the second speaker 20 is a mid-high range speaker and is closer to the eardrum of the human ear (because it is closer to the sound hole 32), and the high-pitched short wave The narrow output to the eardrum provides high quality and clear mid-high range sound output.

4 and FIG. 5 are exploded structural views and cross-sectional structural views of another embodiment of the present invention. As shown in FIG. 4 and FIG. 5 , the soft ear cover 50 (which can be a soft rubber earmuff) and a dustproof net 51 can be included. The soft ear cover 50 can be sleeved on the sound guiding tube 35, and is soft. The ear cover 50 can be adapted to the shape of the human ear canal and the outer ear, and has a comfortable wearing property. The dustproof mesh 51 is disposed in the sound hole 32 to prevent dust or foreign matter from entering the inner cavity C.

The embodiments and/or the embodiments described above are merely illustrative of preferred embodiments and/or implementations of the present invention, and are not intended to limit the implementation of the present invention in any way. The invention may be modified or modified to other equivalent embodiments without departing from the spirit and scope of the invention.

10‧‧‧ first speaker

20‧‧‧second speaker

30‧‧‧ front shell

31‧‧‧ first opening

32‧‧‧ sound hole

33‧‧‧ ribs

34‧‧‧ bracket

35‧‧‧Guide tube

40‧‧‧back shell

41‧‧‧second opening

42‧‧‧ venting holes

43‧‧‧Kap

C‧‧‧ lumen

C1‧‧‧ front cavity

C2‧‧‧ rear cavity

G‧‧‧ gap

S‧‧‧ Shell

The axis of the X1‧‧‧ front cavity

X2‧‧‧Axis of the posterior cavity

Claims (10)

An off-axis dual-range earphone includes at least: a casing, a first horn and a second horn, the casing having a hollow inner cavity and a sound hole communicating with the inner cavity, the inner cavity including a front cavity And a rear cavity, the axis of the front cavity and the axis of the rear cavity are different axes and intersect, the sound hole is in communication with the inner cavity and coaxial with the axis of the front cavity, the first speaker and the second a speaker is disposed in the inner cavity, the first speaker is a middle woofer and is output through the sound hole, the second speaker is located at an offset position of a side of the first speaker near the front cavity, the second speaker It is a tweeter and is closer to the sound hole of the front cavity than the first speaker. The off-axis dual-range earphone of claim 1, wherein the first speaker is placed at an intersection of an axis of the front cavity and an axis of the rear cavity. The off-axis dual-range earphone according to claim 1, wherein the sounding axis of the first speaker is parallel or coaxial with the axis of the front cavity. The off-axis dual-range earphone according to claim 1, wherein the first speaker is a moving ring speaker, and the second speaker is a ceramic speaker. The off-axis dual-range earphone of claim 1, wherein the second speaker and the first speaker have a gap therebetween. The off-axis dual-sound earphone of claim 1, the outer casing comprising a front casing and a rear casing, the front casing hollow to form the front cavity, the rear casing hollow to form the rear cavity, the front casing having the front cavity a first opening and the sound hole, the rear case has a second opening communicating with the rear cavity, the first opening of the front case and the second opening of the rear case being combined with each other to have the same The outer casing of the inner cavity. The off-axis dual-range earphone of claim 6, wherein the front case has a sound guiding tube for forming the sound hole therein. The off-axis dual-range earphone according to claim 7, which comprises a soft earmuff and a dustproof net, the soft earmuff can be sleeved on the sound guiding tube, and the dustproof net is disposed in the sound hole. The off-axis dual-range earphone of claim 6, wherein the first speaker and the second speaker are fixed to the front case. The first dual opening of the front case and the second opening of the rear case respectively have an engaging groove and a rib, and the rib can be engaged with the yoke. The grooves are engaged with each other.