CN213906888U

CN213906888U - Sound production monomer and earphone

Info

Publication number: CN213906888U
Application number: CN202023349213.5U
Authority: CN
Inventors: 王苗苗; 郭晓冬
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-06
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a sound production monomer and earphone, the sound production monomer including have the casing of a sound hole, locate two sound production units in the casing, two sound production unit's vibrating diaphragm relative spacing sets up, the voltage-sharing hole has still been seted up on the casing, go out the sound hole with the voltage-sharing hole respectively with two clearance intercommunication between the sound production unit. The utility model discloses a sound production monomer size is little, tone quality is good.

Description

Sound production monomer and earphone

Technical Field

The utility model relates to an electroacoustic conversion technology field, in particular to sound production monomer and earphone.

Background

The earphone comprises a magnetic circuit component, a vibration component and a shell, wherein a voice coil is connected with an external power supply through a voice coil lead, the electrified voice coil is stressed to generate vibration in a magnetic field of the magnetic circuit system, and the vibration of the voice coil drives the vibration of a vibrating diaphragm to generate resonance with surrounding air to make sound. When the user wears the earphone, the earphone plugged into the auditory canal can compress the air in the auditory canal, so that the air pressure in the auditory canal is increased, and discomfort is caused to the ears of the user. Among the prior art, generally set up the space of intercommunication structure in order to communicate the earphone both sides, make the sound of earphone listen to more balanced, the vibration of earphone vibrating diaphragm is more harmonious, possess better transient state effect, avoids wearing the abnormal sound of in-process loudspeaker vibrating diaphragm. The existing communication structure usually occupies a large space, and the thinning design of the product is influenced.

Therefore, it is desirable to provide a novel sounding unit to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sound production monomer and earphone aims at solving among the current earphone that intercommunication structure occupation space is big, influences the technical problem of the product slimming.

In order to achieve the above object, the utility model provides a sound production monomer is including having the casing of a sound hole, locating two sound production units in the casing, two sound production unit's vibrating diaphragm relative separation sets up, the voltage-sharing hole has still been seted up on the casing, go out the sound hole with the voltage-sharing hole respectively with two clearance intercommunication between the sound production unit.

Optionally, the casing includes a spacer disposed between the diaphragms of the two sound generating units, a first front cavity communicated with the sound generating hole is formed between the spacer and one of the sound generating units, a second front cavity is formed between the spacer and the other of the sound generating units, and a vent hole communicated with the first front cavity and the second front cavity is opened in the spacer.

Optionally, the pressure equalizing hole is in communication with the first front cavity.

Optionally, the pressure equalizing hole is in communication with the second front cavity.

Optionally, the housing includes an upper shell and a lower shell, the upper shell houses the sound generating unit forming the first front cavity, and the lower shell houses the sound generating unit forming the second front cavity;

the middle spacer is positioned between the upper case and the lower case and is coupled to the upper case and the lower case, respectively.

Optionally, the middle partition includes a partition and a hollow outer frame, the partition and the hollow outer frame are respectively disposed opposite to the sound generating unit at intervals, the outer peripheral side of the outer frame is connected to the upper casing and the lower casing, and the outer peripheral side of the partition is connected to the outer frame.

Optionally, the outer frame is further provided with a pressure equalizing gap arranged opposite to the pressure equalizing hole.

Optionally, the vibration direction of the vibrating diaphragm of the sound generating unit is perpendicular to the sound emitting direction of the sound emitting hole, and the sound emitting hole and the pressure equalizing hole are respectively formed in two opposite ends of the shell.

Optionally, one of the two sound units is a bass sound unit, and the other is a bass sound unit or a treble sound unit.

Optionally, with the septum forms the sound generating unit of first front chamber is high pitch sound generating unit, with the septum forms the sound generating unit of second front chamber is bass sound generating unit.

The utility model also provides an earphone, the earphone including the shell that has accommodating space and as above-mentioned sound production monomer, the sound production monomer will accommodating space divides earphone antetheca and earphone back chamber into, go out the sound hole with earphone antetheca intercommunication, the voltage-sharing hole with earphone back chamber intercommunication.

In the utility model, by arranging two sounding units in the sounding monomer, compared with a loudspeaker with only one sounding unit, the sounding monomer provided by the utility model has better acoustic performance and can meet various requirements; the earphone with the sounding monomer has more balanced sound by arranging the pressure equalizing hole, the vibration of the vibrating diaphragm is more coordinated, a better transient effect is achieved, and abnormal sound of the vibrating diaphragm of the loudspeaker is avoided in the wearing process; through directly seting up the voltage-sharing hole on the casing to avoid extra occupation space, be favorable to the miniaturized of sound production monomer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of an embodiment of the earphone of the present invention;

fig. 2 is a schematic view of a disassembled structure of an embodiment of the sound-generating unit of the present invention;

fig. 3 is a partially disassembled schematic structural diagram of an embodiment of the sound-generating unit of the present invention;

fig. 4 is a schematic cross-sectional view of an embodiment of the sound generating unit of the present invention;

fig. 5 is a schematic cross-sectional structure diagram of the sound generating unit of the present invention in a pair ratio;

fig. 6 is a schematic cross-sectional structure view of another comparative example of the sound generating unit of the present invention;

fig. 7 is a graph of the frequency response of the sound generating unit shown in fig. 4, 5 and 6.

Examples reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Earphone set	101	Outer casing
102	Sound outlet	103	Earphone front cavity
				104	Earphone rear cavity	100	Sound monomer
1	Shell body	11	Upper casing
				13	Lower casing	12	Sound outlet hole
14	Pressure relief hole	16	Pressure equalizing hole
				3	Septum	31	Outer frame
33	Partition board	32	Vent hole
				36	Sound outlet gap	38	Pressure equalizing gap
5	Sound production unit	51	Vibrating diaphragm
				52	First front cavity	54	Second front cavity

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a sound production monomer 100.

Referring to fig. 1, fig. 2 and fig. 4, the utility model discloses technical scheme provides a sound production monomer 100, and sound production monomer 100 is including having the casing 1 of sound hole 12, locating two sound production units 5 in the casing 1, and the vibrating diaphragm 51 relative interval of two sound production units 5 sets up, has still seted up pressure-equalizing hole 16 on the casing 1, goes out sound hole 12 and pressure-equalizing hole 16 respectively with two sound production units 5 between the clearance intercommunication.

When the sound generating unit 100 is assembled in the housing 101 of the earphone 10, the sound generating unit 100 divides the accommodating space into an earphone front cavity 103 and an earphone rear cavity 104, and the housing 101 is provided with a sound outlet 102 facing the eardrum of the user. The sound outlet hole 102 is communicated with the front cavity 103 of the earphone, and the pressure equalizing hole 16 is used for being communicated with the rear cavity 104 of the earphone. So that the user's ear canal can be communicated with the outside through the sound outlet hole 102, the sound outlet hole 12, the gap between the two diaphragms 51, the pressure equalizing hole 16 and the earphone rear cavity 104, thereby ensuring the air pressure balance between the inside and outside of the user's ear canal.

The utility model provides a sounding monomer 100 has two sounding units 5, compared with a loudspeaker with only one sounding unit 5, the utility model provides a sounding monomer 100 with better acoustic performance; the pressure equalizing holes 16 are formed, so that the sound of the earphone provided with the sound generating monomer 100 is more balanced, the vibration of the vibrating diaphragm 51 is more coordinated, a better transient effect is achieved, and abnormal sound of the loudspeaker vibrating diaphragm 51 is avoided in the wearing process; by directly forming the pressure equalizing hole 16 on the housing 1, additional space occupation is avoided, and the sound generating unit 100 can be miniaturized.

Referring to fig. 3 and 4, the housing 1 includes a spacer 3, the spacer 3 is disposed between the diaphragms 51 of the two sound units 5, a first front cavity 52 communicating with the sound outlet 12 is formed between the spacer 3 and one sound unit 5, a second front cavity 54 is formed between the spacer 3 and the other sound unit 5, and the spacer 3 is provided with a vent 32 communicating the first front cavity 52 and the second front cavity 54.

The partition 3 divides the gap between the two sound units 5 into a first front chamber 52 and a second front chamber 54, and when the sound unit 5 forming the first front chamber 52 vibrates to generate sound, the airflow directly passes through the sound outlet hole 12 to reach the outside, so that the outside receives the sound generated by the sound unit 5 forming the first front chamber 52; when the sound generating unit 5 forming the second front cavity 54 vibrates to generate sound, the airflow enters the first front cavity 52 through the vent hole 32 and then reaches the outside through the sound outlet hole 12, so that the outside receives the sound generated by the sound generating unit 5 forming the second front cavity 54. Through the vent hole 32 formed in the middle partition 3, when the sound unit 5 and the middle partition 3 form the first front cavity 52, the vent hole 32 and the second front cavity 54 on the middle partition 3 jointly generate a helmholtz resonance effect when the sound unit 5 works, so that the bandwidth of the sound unit 5 can be expanded, and the frequency dividing point of the sound unit 5 can be moved to a high frequency; for the sound unit 5 forming the second front cavity 54 with the spacer 3, when the sound unit 5 works, the part of the first front cavity 52 far away from the sound outlet hole 102 generates the helmholtz resonance effect, so that the bandwidth of the sound unit 5 itself can be expanded, and the frequency dividing point of the sound unit 5 is moved to a high frequency, therefore, the design can improve the high frequency performance and the ductility of the whole sound unit 100.

Referring to fig. 5 and 6, the difference between the comparative example shown in fig. 3 and the sound generating device of the present invention is that in the comparative example shown in fig. 5, the septum 3 does not have the vent 32, and the two sound generating units 5 have independent front cavities; the comparison example shown in fig. 6 is different from the sound generating device of the present invention in that the spacer 3 is not provided in the comparison example shown in fig. 6, and two sound generating units 5 share one front chamber. Referring to fig. 7, a curve L1 is a frequency response curve of the sound generating device of the comparative example shown in fig. 5, a curve L2 is a frequency response curve of the sound generating device of the comparative example shown in fig. 6, and a curve L3 is a frequency response curve of the sound generating device according to an embodiment of the present invention. It can be seen from the curves L1, L2, and L3 that the sound generating device of the present invention has a larger bandwidth in the high frequency range.

By providing the partition 3 to form the first front chamber 52 and the second front chamber 54 with the two sound units 5, respectively, the vibrations of the diaphragms 51 that affect each other by the airflows generated by the diaphragms 51 of the two sound units 5 are reduced, and further, one of the two sound units 5 is a bass sound unit and the other is a bass sound unit or a treble sound unit. The skilled person can select which sound units 5 the two sound units 5 are respectively, as desired. When the full-frequency effect is needed to be realized, the auditory experience of a user is increased, and a bass sounding unit and a treble sounding unit can be combined; when the bass effect needs to be enhanced, the low frequency is more vigorous, and the combination of double bass sounding units can be adopted.

Still further, the sound generating unit 5 forming the first front chamber 52 with the septum 3 is a high pitch sound generating unit, and the sound generating unit 5 forming the second front chamber 54 with the septum 3 is a low pitch sound generating unit. The larger amplitude of the bass unit, as compared to the treble unit, provides greater thrust to the air in the second front chamber 54 when vibrated, thereby facilitating airflow out of the sound outlet hole 12.

Pressure equalizing bore 16 may be in communication with first forward cavity 52 and may also be in communication with second forward cavity 54. One skilled in the art may place the pressure equalization hole 16 in communication with the first forward cavity 52 or the second forward cavity 54 as desired.

For convenience of description, the following description will be made with the sound unit 5 forming the first front chamber 52 as a treble sound unit and the sound unit 5 forming the second front chamber 54 as a bass sound unit, and it will be understood by those skilled in the art that the following description of relevant features does not constitute a limitation to the two sound units 5 specifically being treble sound units or bass sound units. Referring to fig. 1, 2, 3 and 4, the housing 1 includes an upper shell 11 and a lower shell 13, the upper shell 11 houses the sound generating unit 5 forming the first front cavity 52, and the lower shell 13 houses the sound generating unit forming the second front cavity 54; the partition 3 is located between the upper case 11 and the lower case 13, and is connected to the upper case 11 and the lower case 13, respectively. By providing the upper case 11 and the lower case 13, the assembly of the sound device 100 is facilitated.

Further, the partition 3 includes a partition 33 and a hollow outer frame 31 which are respectively disposed at intervals opposite to the sound emitting unit 5, outer circumferential sides of the outer frame 31 are respectively connected to the upper case 11 and the lower case 13, and outer circumferential sides of the partition 33 are connected to the outer frame 31. In this embodiment, the casing 1 includes an upper casing 11 and a lower casing 13 which are matched with each other, the high-pitch sound generating unit is accommodated in the upper casing 11, the low-pitch sound generating unit is accommodated in the lower casing 13, and the upper casing 11 and the lower casing 13 are respectively provided with a pressure relief hole 14 communicated with the high-pitch sound generating unit or the low-pitch sound generating unit so as to facilitate the vibration of the diaphragm 51. The pressure equalizing hole 16 can directly adjust the air pressure balance among the first front cavity 52, the second front cavity 54 and the rear cavity 104 of the earphone, and the pressure releasing hole 14 can directly adjust the air pressure balance among the inside of each sound generating unit 5 and the rear cavity 104 of the earphone. The outer frame 31 may be supported on a frame of the treble sound unit or a frame of the bass sound unit. The size of the first front chamber 52 and the second front chamber 54 can be adjusted by adjusting the connection position of the partition 33 and the outer frame 31 to adjust the division of the space between the two sound emitting units 5.

The outer frame 31 is recessed to form a sound outlet notch 36 communicating the sound outlet hole 12 and the first front chamber 52 near one end of the sound generating unit 5 forming the first front chamber 52. The treble sound unit is placed on the outer frame 31, and the channel formed by the treble sound unit and the sound outlet notch 36 is communicated with the sound outlet hole 12 and the first front cavity 52. The outer frame 31 is further provided with a pressure equalizing gap disposed opposite to the pressure equalizing hole 16. When the pressure equalizing hole 16 is communicated with the first front cavity 52, one end of the outer frame 31, which is close to the sound generating unit 5 forming the first front cavity 52, is recessed to form a pressure equalizing gap 38; when the pressure equalizing hole 16 communicates with the second front chamber 54, the outer frame 31 is recessed to form the pressure equalizing notch 38 near the end of the sound generating unit 5 forming the second front chamber 54.

The vibration direction of the diaphragm 51 of the sound generating unit 5 is perpendicular to the sound emitting direction of the sound emitting hole 12, the sound emitting hole 12 and the pressure equalizing hole 16 are respectively disposed at two opposite ends of the casing 1, and the vent hole 32 is opened at one end of the partition 33 close to the sound emitting hole 12. So that the airflow of the second front chamber 54 can be rapidly propagated through the sound outlet hole 12.

Referring to fig. 1 and 2, the present invention further provides an earphone 10, the earphone 10 includes a housing 101 having an accommodating space and a sound generating unit 100 as above, the sound generating unit 100 divides the accommodating space into an earphone front cavity 103 and an earphone rear cavity 104, the sound output hole 12 is communicated with the earphone front cavity 103, and the pressure equalizing hole 16 is communicated with the earphone rear cavity 104.

The specific structure of the sounding unit 100 refers to the above embodiments, and since the earphone 10 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here. The headset 10 may specifically be an in-ear headset or an in-ear headset.

Further, the earphone 10 includes a housing 101 adapted to the cavum concha of the user, and the two sound emitting units 5 may be stacked along a direction perpendicular to the bottom of the housing 101 to the top of the housing 101, with one end of the earphone 10 contacting the top of the cavum concha of the user as the top of the housing 101, and one end contacting the bottom of the cavum concha of the user as the bottom of the housing 101. The two sound emitting units 5 may also be stacked in a direction from the bottom of the housing 101 to the top of the housing 101. A person skilled in the art can determine how to set the positional relationship of the two sound emitting units 5 in the housing 101 according to the space reserved for the sound emitting unit 100 in the housing 101 and the size of the sound emitting unit 100.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. The utility model provides a sound production monomer, its characterized in that, sound production monomer including have a sound hole the casing, locate two sound production units in the casing, two sound production unit's vibrating diaphragm relative interval sets up, the pressure-equalizing hole has still been seted up on the casing, sound hole with the pressure-equalizing hole respectively with two clearance intercommunication between the sound production unit.

2. The sounding unit as claimed in claim 1, wherein the casing includes a spacer disposed between the diaphragms of the two sounding units, a first front cavity communicating with the sounding hole is formed between the spacer and one of the sounding units, a second front cavity is formed between the spacer and the other sounding unit, and the spacer is opened with a vent hole communicating with the first front cavity and the second front cavity.

3. A sound-generating unit as claimed in claim 2, wherein the pressure equalizing hole communicates with the first front chamber.

4. A sound-generating unit as claimed in claim 2, wherein the pressure equalizing hole communicates with the second front chamber.

5. The sound generating unit of claim 2, wherein the housing includes an upper shell and a lower shell, the upper shell housing the sound generating unit forming the first front cavity, the lower shell housing the sound generating unit forming the second front cavity;

6. The sounding unit according to claim 5, wherein the partition includes a partition and a hollow outer frame, the partition being disposed at a distance from the sounding unit, the outer frame being coupled to the upper case and the lower case at an outer circumferential side thereof, and the partition being coupled to the outer frame at an outer circumferential side thereof.

7. The sounding unit as recited in claim 6, wherein said outer frame further comprises a pressure equalizing notch disposed opposite to said pressure equalizing hole.

8. The sounding unit as claimed in claim 1, wherein the vibration direction of the diaphragm of the sounding unit is perpendicular to the sound output direction of the sound output hole, and the sound output hole and the pressure equalizing hole are respectively disposed at two opposite ends of the housing.

9. The sounding unit according to any one of claims 2 to 7, wherein one of the two sounding units is a bass sounding unit and the other is a bass sounding unit or a treble sounding unit.

10. The sound generating unit as claimed in claim 9, wherein the sound generating unit forming the first front chamber with the middle spacer is a high pitch sound generating unit, and the sound generating unit forming the second front chamber with the middle spacer is a low pitch sound generating unit.

11. An earphone, characterized in that the earphone comprises a housing having a receiving space and a sound generating unit as claimed in any one of claims 1 to 10, the sound generating unit divides the receiving space into an earphone front cavity and an earphone rear cavity, the sound outlet hole is communicated with the earphone front cavity, and the pressure equalizing hole is communicated with the earphone rear cavity.