CN218550128U

CN218550128U - Open type earphone

Info

Publication number: CN218550128U
Application number: CN202222407907.2U
Authority: CN
Inventors: 董坤; 李东科
Original assignee: Shenzhen Fenda Technology Co Ltd
Current assignee: Shenzhen Fenda Technology Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-02-28
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses an open earphone, include: a body provided with a main cavity; the loudspeaker is arranged in the main cavity and divides the main cavity into a front sound cavity and a rear cavity; a circuit board electrically connected to the speaker; the baffle, the baffle is located in the back chamber and will the back chamber is separated for back sound chamber and holding chamber, back sound chamber with the common holding in preceding sound chamber the speaker, the holding chamber is used for the holding the circuit board. The low-frequency loss can be effectively avoided, the low-frequency expressive force is improved, and meanwhile, the rear cavity can be reliably maintained in a relatively closed state so as to maintain good tone quality.

Description

Open type earphone

Technical Field

The utility model relates to an earphone technical field especially relates to an open earphone.

Background

When the open type earphone is worn, the earphone body does not enter the ear, the ear is not blocked completely, the ear canal is not sealed, the open type earphone does not have the noise reduction function like other in-ear type earphones, the open type earphone is also derived from the open type design, and when the open type earphone is worn, a user can hear partial environment sound truly, and different transparent experience is obtained.

At present, the open type earphones in the market mainly comprise an earphone main body and an ear hook connected with the earphone main body, wherein the earphone main body mainly comprises a machine body and a loudspeaker which is arranged in the machine body and divides the internal space of the machine body into a front sound cavity and a rear sound cavity; the rear sound cavity of the open type earphone is of an independent structure, but the rear sound cavity of the open type earphone is surrounded by the loudspeaker and the machine body, and in the long-term use process, the machine body may deform and age to cause the failure of sealant between the front shell and the rear shell, so that the rear sound cavity cannot form a relatively closed space, and the sound quality is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an open earphone, it can effectively avoid the low frequency loss, improves the low frequency expressive force, and simultaneously, can make the back cavity reliably maintain a relative closed state to maintain good tone quality.

The purpose of the utility model is realized by adopting the following technical scheme:

an open earphone comprising:

a body provided with a main cavity;

the loudspeaker is arranged in the main cavity and divides the main cavity into a front sound cavity and a rear cavity;

a circuit board electrically connected to the speaker;

the baffle is arranged in the rear cavity and divides the rear cavity into a rear sound cavity and a containing cavity, the rear sound cavity and the front sound cavity are jointly contained in the loudspeaker, and the containing cavity is used for containing the circuit board.

Furthermore, the front sound cavity, the rear sound cavity and the containing cavity are sequentially arranged along the axial direction of the loudspeaker.

Furthermore, the machine body comprises a front shell and a rear shell which are connected with each other and jointly enclose the main cavity, the loudspeaker and the partition plate are both arranged on the front shell, and a sound outlet communicated with the front sound cavity and a sound adjusting hole communicated with the rear sound cavity are arranged on the front shell.

Furthermore, the sound outlet hole and the sound adjusting hole are both provided with a mesh structure.

Furthermore, a first annular bulge is arranged on the inner bottom wall of the front shell, the end of the first annular bulge is hermetically connected with the front end of the suspended edge on the loudspeaker, and the front sound cavity is defined by the inner bottom wall of the front shell, the first annular bulge and the loudspeaker.

Further, a second annular bulge is further arranged on the inner bottom wall of the front shell, surrounds the first annular bulge and is bulged relative to the first annular bulge;

the partition plate is connected with the second annular bulge in a sealing mode, and the rear sound cavity is defined by the partition plate, the second annular bulge and the loudspeaker.

Further, the first annular convex part is arranged on the inner side wall of the second annular convex part.

Further, the baffle is including being equipped with the bottom plate portion that has a perfect understanding the hole and locating on the lateral wall of bottom plate portion and center on dodge the annular bellying of third that the hole set up, it is used for the holding to dodge the hole frame rear end on the speaker and with frame rear end sealing connection on the speaker, the tip of annular bellying of third with the end sealing connection of the annular bellying of second.

Further, the baffle still including locate on a lateral wall of bottom plate portion and by the fourth annular bellying that third annular bellying surrounded, fourth annular bellying centers on the outer fringe setting of dodging the hole and with frame front end sealing connection on the speaker.

Furthermore, a gap communicated with the rear sound cavity is formed in the side wall of the third annular convex part, and a first extending part which is connected with the third annular convex part and surrounds a first channel with the third annular convex part is further arranged on the partition board;

the inner bottom wall of the front shell is further provided with a second extending portion, the second extending portion and the second annular bulge portion enclose a second channel which enables the sound adjusting hole to be communicated with the first channel, and the end portion of the second extending portion is connected with the end portion of the first extending portion in a sealing mode.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses an open earphone, because the back sound chamber independently sets up, there is not other debris except the speaker in the back sound chamber, make back sound chamber rule, it is level and smooth, the inner space is enough big, can effectively avoid the low frequency loss, therefore can promote the low frequency expressive force, and simultaneously, because preceding sound chamber and back sound chamber mutual independence, can ensure the tone quality clear, bright, thereby ensure tone quality, in addition, because the formation in back sound chamber is separated through the baffle that sets up in the organism and is formed, the baffle that sets up in the organism can effectively avoid or delay the ageing problem that long-term use leads to, therefore can make back sound chamber reliably maintain relative closed state for a long time, thereby make this open earphone maintain good tone quality.

Drawings

Fig. 1 is a schematic structural view of the open-type earphone of the present invention at a first viewing angle;

fig. 2 is an exploded view of the open earphone of the present invention;

fig. 3 is a schematic structural view of the open-type earphone of the present invention at a second viewing angle;

FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a front housing in the open earphone of the present invention;

fig. 6 is a schematic structural diagram of the open earphone of the present invention, in which the partition board is at the first viewing angle;

fig. 7 is a schematic structural diagram of the open earphone of the present invention, in which the partition board is located at the second viewing angle.

In the figure: 10. an earphone main body; 11. a body; 111. a front housing; 1111. a sound outlet hole; 1112. a tone tuning hole; 1113. a first annular boss; 1114. a second annular boss; 1115. a second extension portion; 1116. a second channel; 112. a rear housing; 113. a front sound cavity; 114. a rear sound cavity; 115. an accommodating cavity; 12. a speaker; 13. a circuit board; 14. a partition plate; 141. a bottom plate portion; 1411. avoiding holes; 142. a third annular projection; 1421. a notch; 143. a fourth annular boss; 144. a first extension portion; 145. a first channel; 20. and (5) hanging ears.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1 to 4, an open type earphone according to a preferred embodiment of the present invention is shown, which includes an earphone main body 10 and an earhook 20 connected to the earphone main body 10, wherein the earphone main body 10 includes: a body 11 provided with a main cavity; a speaker 12, the speaker 12 being disposed in the main cavity and dividing the main cavity into a front sound cavity 113 and a rear cavity; a circuit board 13, the circuit board 13 and the speaker 12 being electrically connected; and the partition plate 14 is arranged in the rear cavity and divides the rear cavity into a rear sound cavity 114 and an accommodating cavity 115, the rear sound cavity 114 and the front sound cavity 113 jointly accommodate the loudspeaker 12, and the accommodating cavity 115 accommodates the circuit board 13.

The utility model discloses an open earphone, because back sound chamber 114 independently sets up, there is not other debris except speaker 12 in back sound chamber 114, make back sound chamber 114 rule, level and smooth, the inner space is enough big, can effectively avoid the low frequency loss, therefore can promote the low frequency expressive force, simultaneously, because preceding sound chamber 113 and back sound chamber 114 mutual independence, can ensure that the tone quality is clear, bright, thereby ensure tone quality, in addition, because the formation of back sound chamber 114 is separated through the baffle 14 that sets up in organism 11 and is formed, baffle 14 that sets up in organism 11 can effectively avoid or delay the ageing problem that long-term use leads to, therefore can make back sound chamber 114 reliably maintain relative closed state for a long time, thereby make this open earphone maintain good tone quality.

In this embodiment, the front sound cavity 113, the rear sound cavity 114 and the accommodating cavity 115 are sequentially arranged along the axial direction of the speaker 12, so that the whole structure of the earphone body 10 is more compact and the whole volume is smaller.

In this embodiment, the body 11 includes a front case 111 and a rear case 112 connected to each other and enclosing a main chamber, the speaker 12 and the partition 14 are both disposed on the front case 111, and the front case 111 is provided with a sound outlet 1111 communicating with the front sound chamber 113 and a sound control port 1112 communicating with the rear sound chamber 114. Because loudspeaker 12 and baffle 14 both locate on front casing 111, when dispatching from the factory performance test to this open earphone, only need to assemble loudspeaker 12, baffle 14 on front casing 111 and can test, compare in current open earphone and need assemble back casing 112 in front casing 111 and form a complete earphone main part 10 and just can realize performance test, this open earphone more conveniently tests and reprocesses.

In this embodiment, the sound outlet 1111 and the sound adjustment hole 1112 are both provided with a mesh structure, and the mesh structure can be used for preventing dust and preventing foreign objects from entering, and can also increase acoustic resistance.

Specifically, in the present embodiment, the front case 111 and the rear case 112 are connected together by a snap structure to facilitate disassembly and assembly, and in other embodiments, the front case 111 and the rear case 112 may be connected by screws.

Referring to fig. 4 and 5, in the present embodiment, a first annular protrusion 1113 is disposed on the inner bottom wall of the front housing 111, an end of the first annular protrusion 1113 is hermetically connected to a front end of the overhanging edge of the speaker 12, and a front sound cavity 113 is defined by the inner bottom wall of the front housing 111, the first annular protrusion 1113 and the speaker 12. In this configuration, the first annular projection 1113 is provided to facilitate the installation of the speaker 12 while ensuring that the front sound chamber 113 forms a relatively closed space except for the communication with the sound outlet port 1111, thereby ensuring sound quality.

Referring to fig. 4 and 5, in the present embodiment, a second annular protrusion 1114 is further provided on the inner bottom wall of the front housing 111, the second annular protrusion 1114 surrounding the first annular protrusion 1113; the baffle 14 and the second annular protrusion 1114 are hermetically connected, and the back sound cavity 114 is defined by the baffle 14, the second annular protrusion 1114 and the speaker 12. In this configuration, the second annular protrusion 1114 is provided to facilitate the installation of the partition 14, and to ensure a relatively closed space for the rear sound chamber 114 in addition to the communication with the sound adjustment hole 1112, thereby ensuring sound quality.

Referring to fig. 5, in the present embodiment, to make the structure more compact, the first annular convex portion 1113 is provided on the inner side wall of the second annular convex portion 1114.

Referring to fig. 4, 6 and 7, in the present embodiment, the partition 14 includes a bottom plate portion 141 having a through-hole 1411, and a third annular protrusion 142 disposed on a side wall of the bottom plate portion 141 and surrounding the hole 1411, where the hole 1411 is used for accommodating the rear end of the frame on the speaker 12 and is hermetically connected to the rear end of the frame on the speaker 12, and an end of the third annular protrusion 142 is hermetically connected to an end of the second annular protrusion 1114. In this structure, the third annular projection 142 is provided to facilitate mounting of the partition plate 14 on the front housing 111, and at the same time, since the relief hole 1411 hermetically connected to the rear end of the frame of the speaker 12 is provided, the mounting stability of the partition plate 14 can be enhanced, and the partition plate 14 can be more reliably mounted on the front housing 111.

Referring to fig. 4 and 7, to further enhance the mounting stability of the partition 14, the partition 14 further includes a fourth annular protrusion 143 provided on one side wall of the bottom plate portion 141 and surrounded by the third annular protrusion 142, and the fourth annular protrusion 143 is provided around the outer edge of the avoidance hole 1411 and is hermetically connected to the front end of the frame on the speaker 12.

Referring to fig. 4 and 7, a notch 1421 communicating with the rear sound cavity 114 is formed on a side wall of the third annular protrusion 142, and a first extending portion 144 connected to the third annular protrusion 142 and enclosing a first channel 145 with the third annular protrusion 142 is further formed on the partition 14; a second extension 1115 is further provided on the inner bottom wall of the front housing 111, both the second extension 1115 and the second annular protrusion 1114 enclose a second channel 1116 communicating the tuning hole 1112 with the first channel 145, and an end of the second extension 1115 is hermetically connected with an end of the first extension 144. Wherein, because of being provided with first extension 144 and second extension 1115, can further strengthen the installation stability of baffle 14, make baffle 14 install on front casing 111 more reliably, and because of being provided with first channel 145 and second channel 1116, can widen the space of back sound chamber 114, make the whole volume of back sound chamber 114 bigger, thus can further promote the low frequency expression.

Specifically, in this embodiment, the above-mentioned sealing connection is specifically a sealing adhesive bonding, so as to simplify the installation, ensure the sealing performance, and facilitate the improvement of the installation efficiency.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. Open-type headphones, comprising:

a body provided with a main cavity;

a circuit board electrically connected to the speaker;

2. The open-type earphone as claimed in claim 1, wherein the front sound cavity, the rear sound cavity and the receiving cavity are sequentially arranged along the axial direction of the speaker.

3. The open-type earphone of claim 1 wherein said body comprises a front housing and a rear housing connected to and together defining said main chamber, said speaker and said diaphragm being both disposed on said front housing, said front housing having a sound outlet in communication with said front chamber and a tuning hole in communication with said rear chamber.

4. The open earphone as claimed in claim 3, wherein the sound outlet hole and the tuning hole are both provided with a mesh structure therein.

5. The open earphone of claim 3 wherein the inner bottom wall of the front housing defines a first annular protrusion, the end of the first annular protrusion being sealingly engaged with the overhanging front end of the speaker, the inner bottom wall of the front housing, the first annular protrusion and the speaker defining the front acoustic chamber therebetween.

6. The open-ended earphone according to claim 5 wherein the inner bottom wall of the front housing further comprises a second annular raised portion surrounding the first annular raised portion;

7. The open-ended earphone as claimed in claim 6, wherein the first annular protrusion is provided on an inner sidewall of the second annular protrusion.

8. The open-type earphone as claimed in claim 6, wherein the partition comprises a bottom plate portion having a through-hole and a third annular protrusion portion disposed on a sidewall of the bottom plate portion and surrounding the through-hole, the through-hole is used for receiving the rear end of the frame on the speaker and being hermetically connected to the rear end of the frame on the speaker, and an end of the third annular protrusion portion is hermetically connected to an end of the second annular protrusion portion.

9. The open-type earphone according to claim 8, wherein the partition further comprises a fourth annular protrusion portion provided on a side wall of the bottom plate portion and surrounded by the third annular protrusion portion, the fourth annular protrusion portion being provided around an outer edge of the avoiding hole and being sealingly connected to a front end of the frame on the speaker.

10. The open-type earphone as claimed in claim 8, wherein the sidewall of the third annular protrusion is provided with a notch communicating with the rear sound cavity, and the partition is further provided with a first extension part connected with the third annular protrusion and enclosing a first channel with the third annular protrusion;