Earphone

Abstract

The utility model provides an earphone, and the earphone comprises an earplug part which comprises a first housing, and the first housing is provided with an accommodation cavity; and the more than three loudspeaker units are arranged in the accommodating cavity, and the frequency response ranges of at least two loudspeaker units in the more than three loudspeaker units are different. Through the arrangement, the sound production frequency range of the earphone is expanded, so that the earphone can produce sound with a wider frequency response range, the sound production effects of the earphone at low frequency, intermediate frequency and high frequency are ensured, three-frequency balance of the earphone is realized, and the acoustic performance of the earphone is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to an earphone. BACKGROUND

[0002] With the popularity of earphones, consumers have higher and higher requirements for the performance and sound quality of earphones.

[0003] Taking an OWS (Open Wearable Stereo) earphone as an example, the OWS earphone adopts a non-ear design, which avoids the compression and ear canal discomfort caused by traditional in-ear earphones. The types of speaker assemblies of OWS earphones on the market are relatively single, which leads to unbalanced low, medium and high frequency performance of the earphone, affecting the sound quality of the earphone and the user's experience. CONTENT OF THE UTILITY MODEL

[0004] In view of this, the present application provides an earphone for realizing balanced three frequencies of the earphone and improving the acoustic performance of the earphone.

[0005] Specifically, the technical solutions include the following:

[0006] The present application provides an earphone, which comprises:

[0007] An earplug part comprising a first shell having a receiving cavity;

[0008] Three or more speaker units arranged in the receiving cavity, at least two of the speaker units having different frequency response ranges.

[0009] In an optional embodiment, the earphone further comprises a microphone assembly and a microphone support, both of which are located in the receiving cavity, the microphone assembly is mounted on the microphone support, and the microphone support is mounted on the inner wall of the first shell.

[0010] In an optional embodiment, the microphone assembly comprises a first microphone and a second microphone, and the number of microphone supports is two, both of which are located on opposite sides of the receiving cavity, and the first microphone and the second microphone are one-to-one mounted on the two microphone supports.

[0011] In an optional embodiment, the three or more speaker units comprise a first speaker unit, a second speaker unit and a third speaker unit, at least one of the first speaker unit, the second speaker unit and the third speaker unit is a moving coil speaker, and at least one is a moving iron speaker.

[0012] In an optional embodiment, the first and second loudspeaker units are moving coil loudspeakers, and the first loudspeaker unit has a size larger than that of the second loudspeaker unit.

[0013] The earphone further comprises a loudspeaker support arranged on the first loudspeaker unit, and the second loudspeaker unit is mounted on the loudspeaker support.

[0014] In an optional embodiment, the first loudspeaker unit is a 1813 loudspeaker, and the length and width of the first loudspeaker unit are 18 mm and 13 mm respectively.

[0015] The second loudspeaker unit is a Φ10 mm loudspeaker, and the diaphragm of the second loudspeaker unit has a diameter of 10 mm.

[0016] In an optional embodiment, one side of the first housing is outwardly convex to form a sound outlet.

[0017] The third loudspeaker unit is a moving iron loudspeaker, and the third loudspeaker unit is arranged on a side of the first loudspeaker unit away from the second loudspeaker unit and located in the sound outlet.

[0018] In an optional embodiment, the number of the third loudspeaker units is two, and the two third loudspeaker units are arranged side by side.

[0019] In an optional embodiment, the more than three loudspeaker units further comprise a fourth loudspeaker unit, and the fourth loudspeaker unit is a piezoelectric ceramic loudspeaker, the fourth loudspeaker unit is arranged on a side of the first loudspeaker unit away from the second loudspeaker unit and located in the sound outlet.

[0020] In an optional embodiment, the earphone further comprises an ear hook part connected to the earplug part.

[0021] In an optional embodiment, the earphone is an OWS earphone.

[0022] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects: by arranging more than three loudspeaker units and at least two loudspeaker units having different frequency response ranges, the sound frequency range of the earphone is expanded, the earphone can emit sound with a wider frequency response range, the sound emission effect of the earphone in low, medium and high frequencies is ensured, the three-frequency balance of the earphone is facilitated, and the acoustic performance of the earphone is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0024] Figure 1 A structural schematic diagram of an earphone provided by the embodiments of the present application;

[0025] Figure 2 An exploded view of an earphone provided by the embodiments of the present application;

[0026] Figure 3 A partial structural schematic diagram of an earphone provided by the embodiments of the present application;

[0027] Figure 4 A partial exploded schematic diagram of an earphone provided by the embodiments of the present application;

[0028] Figure 5 A sectional view of an earplug part provided by the embodiments of the present application;

[0029] Figure 6 A side view of an earphone provided by the embodiments of the present application;

[0030] Figure 7 A partial exploded schematic diagram of an earplug part provided by the embodiments of the present application.

[0031] The reference signs in the drawings respectively represent:

[0032] 1-earplug part; 11-first shell; 111-first upper shell; 112-first lower shell; 113-accommodation cavity; 114-sound outlet;

[0033] 2-loudspeaker unit; 21-first loudspeaker unit; 22-second loudspeaker unit; 23-third loudspeaker unit; 24-fourth loudspeaker unit;

[0034] 3-earhook part;

[0035] 4-energy storage part; 41-second shell; 411-second upper shell; 412-second lower shell; 42-battery;

[0036] 5-microphone assembly; 51-first microphone; 52-second microphone;

[0037] 6-microphone support;

[0038] 71-main board; 72-flexible circuit board; 73-touch circuit board; 74-pressure relief net; 75-loudspeaker decoration net; 76-net cloth;

[0039] 8-loudspeaker support.

[0040] The specific embodiments of the present application have been shown and described in the above drawings and the following description, and will be described in more detail below. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] The positional nouns such as "upper", "lower", "lateral" and the like involved in the embodiments of the present application are generally based on the relative relationship of the positions shown in the drawings, and these positional nouns are used only to more clearly describe the structure and the relationship between the structures, and are not intended to describe absolute positions. When the product is placed in different attitudes, the positions may change, for example, "upper" and "lower" may be interchanged.

[0043] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art. Some technical terms appearing in the embodiments of the present application are explained below.

[0044] To make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0045] As shown in Figures 1 to 7 The earphone provided in the embodiments of the present application includes an earplug part 1 and three or more loudspeaker units 2.

[0046] The earphone can be a wired earphone or a wireless Bluetooth earphone. Exemplarily, when the earphone is a wireless Bluetooth earphone, it can be specifically an OWS earphone, a TWS (True Wireless Stereo) earphone, a bone conduction earphone, etc., and hereinafter, the earphone will be taken as an OWS earphone as an example for description.

[0047] The earplug part 1 includes a first shell 11 having a receiving cavity 113. Exemplarily, as shown in Figure 2 The first shell 11 includes a first upper shell 111 and a first lower shell 112, and the first upper shell 111 and the second lower shell 412 are butted and enclosed to form the receiving cavity 113.

[0048] The three or more than three horn units 2 are arranged in the accommodating cavity 113, and the frequency response ranges of at least two horn units 2 among the three or more than three horn units 2 are different.

[0049] When the user wears the earphone, the earplug part 1 is located near the external auditory canal of the user, and the sound emitted by the horn unit 2 is transmitted to the external environment or the ear of the user.

[0050] The horn unit 2 can be moving coil type, condenser type, piezoelectric type, electromagnetic type, electro-ion type or pneumatic type, etc., and the horn unit 2 can vibrate the surrounding air through electromagnetic, piezoelectric or electrostatic effect to produce sound.

[0051] Specifically, the number of the horn unit 2 is three or more than three, and the frequency response ranges of at least two horn units 2 are different, so that the frequency response range of the earphone covers low frequency, medium frequency and high frequency, thereby making the earphone emit sound with a wider frequency response range.

[0052] It should be noted that the low frequency (Bass) refers to the lower frequency range of the audio signal, usually containing the frequency between 20Hz and 250Hz; the medium frequency (Midrange) refers to the intermediate frequency range of the audio signal, usually between 250Hz and 4000Hz; and the high frequency (Treble) refers to the higher frequency range of the audio signal, usually between 4000Hz and 20kHz.

[0053] The OWS earphone on the market usually only has one horn or two horns, and the three-frequency performance of the earphone is unbalanced, while the earphone provided by the embodiment of the present application has three or more than three horn units 2 and a larger frequency response range, and has better acoustic performance.

[0054] As shown in Figure 2 , the earphone provided by the embodiment of the present application further comprises a main board 71, a flexible circuit board 72 and a touch circuit board 73, the main board 71, the flexible circuit board 72 and the touch circuit board 73 are arranged in the accommodating cavity 113, the flexible circuit board 72 and the touch circuit board 73 are electrically connected with the main board 71 respectively, and the horn unit 2 is electrically connected with the main board 71 through the flexible circuit board 72 or other conductive elements. The touch circuit board 73 is used for sensing the touch of the user, and converts the change of the electric field distribution of the touch circuit board 73 when the user touches into a current signal and transmits the current signal to the main board 71, so that the main board 71 controls the earphone to perform corresponding function operation according to the current signal, such as adjusting the volume, cutting the song, pausing the play and the like.

[0055] Optionally, please refer to Figure 2 and Figure 7 , the first shell 11 is provided with two pressure relief holes, and the earphone further comprises two pressure relief nets 74, which are installed in the two pressure relief holes one by one.

[0056] The pressure relief net 74 is used for preventing sundries such as sweat, dust and the like from entering the containing cavity 113, avoiding that the elements in the containing cavity 113 are contaminated or damaged, thereby ensuring the normal work and sound quality of the earphone; the pressure relief net 74 can also ensure that the containing cavity 113 is in air flow with the external environment, preventing the sound quality from being damaged due to the air pressure change in the containing cavity 113, and being beneficial to ensuring the balance and stability of the sound.

[0057] The earphone provided by the embodiment of the present application expands the sound frequency range of the earphone by arranging three or more than three loudspeaker units 2 and the frequency response ranges of at least two loudspeaker units 2 are different, so that the earphone can emit sound with a wider frequency response range, ensures the sound emission effect of the earphone at low frequency, medium frequency and high frequency, and is beneficial to realizing the three-frequency balance of the earphone and improving the acoustic performance of the earphone.

[0058] In a further embodiment, please refer to Figure 2 and Figure 3 The earphone further comprises a microphone assembly 5 and a microphone support 6, the microphone assembly 5 and the microphone support 6 are both located in the containing cavity 113, the microphone assembly 5 is installed on the microphone support 6, and the microphone support 6 is installed on the inner wall of the first shell 11.

[0059] The microphone assembly 5 is used for picking up sound, realizing the voice call function of the earphone.

[0060] Exemplarily, the microphone assembly 5 is bonded on the microphone support 6, the microphone assembly 5 is connected with the flexible circuit board 72, thereby realizing the electrical connection with the mainboard 71, and the microphone support 6 is bonded on the inner wall of the first shell 11.

[0061] By installing the microphone support 6 on the inner wall of the first shell 11, the microphone support 6 is stably connected with the first shell 11, the space of the containing cavity 113 is fully utilized, the space utilization rate of the containing cavity 113 is improved, and the volume of the earphone is reduced.

[0062] Further, as shown in Figure 3 The microphone assembly 5 comprises a first microphone 51 and a second microphone 52, the number of the microphone supports 6 is two, the two microphone supports 6 are located at opposite sides in the containing cavity 113, and the first microphone 51 and the second microphone 52 are one-to-one correspondingly installed on the two microphone supports 6.

[0063] By arranging the first microphone 51 and the second microphone 52, the double-microphone noise reduction technology is used for noise reduction processing, and the effect of active noise reduction is achieved.

[0064] Specifically, the main board 71 integrates a storage medium, and the storage medium stores program code of a noise reduction algorithm, which can realize active noise reduction processing when executed by a processor. The first microphone 51 is mainly responsible for capturing the user's voice, and the second microphone 52 is mainly responsible for capturing the ambient noise. The noise reduction algorithm analyzes the sound signals captured by the first microphone 51 and the second microphone 52, and identifies which are the user's voice and which are the background noise. After identifying the background noise, the noise reduction algorithm generates a sound signal opposite in phase to the noise through the loudspeaker unit 2. When the opposite sound signal is superimposed with the original noise signal, the phase of the sound can be cancelled, thereby reducing or eliminating the noise. After processing, the earphone outputs a noise-reduced voice signal, so that the receiving party hears the voice more clearly, and the background noise is greatly reduced.

[0065] As shown in Figure 3 , the two microphone supports 6 are oppositely arranged, and the first microphone 51 and the second microphone 52 are located on opposite sides in the accommodating cavity 113. Through this arrangement, the distance between the first microphone 51 and the second microphone 52 is increased, so that they can capture wind noise signals of different directions and intensities, and can more accurately detect wind noise, which is conducive to improving the wind noise resistance performance of the earphone.

[0066] In a specific embodiment, the three or more loudspeaker units 2 include a first loudspeaker unit 21, a second loudspeaker unit 22, and a third loudspeaker unit 23, at least one of the first loudspeaker unit 21, the second loudspeaker unit 22, and the third loudspeaker unit 23 is a moving coil loudspeaker, and at least one is a moving iron loudspeaker.

[0067] The moving coil loudspeaker utilizes the magnetic field generated by the current through the coil to interact with the fixed magnetic field, and pushes the diaphragm to vibrate to produce sound, and the sound effect of medium and low frequency is good; the moving iron loudspeaker uses a metal sheet to vibrate to produce sound, and the sound effect of high frequency is good.

[0068] By setting at least one loudspeaker unit 2 as a moving coil loudspeaker and at least one loudspeaker unit 2 as a moving iron loudspeaker, the moving coil loudspeaker and the moving iron loudspeaker are combined and applied in the earphone, which is conducive to realizing three-frequency balance of the earphone, enriching the listening experience of the user, and improving the acoustic performance of the earphone.

[0069] Further, as shown in Figure 4 , the first loudspeaker unit 21 and the second loudspeaker unit 22 are both moving coil loudspeakers, and the size of the first loudspeaker unit 21 is greater than that of the second loudspeaker unit 22. The earphone further includes a loudspeaker support 8, which is arranged on the first loudspeaker unit 21, and the second loudspeaker unit 22 is installed on the loudspeaker support 8.

[0070] The size of the dynamic cone speaker determines the area of the diaphragm. A large-size dynamic cone speaker performs better in the low-frequency band because a larger diaphragm can push more air to produce a more powerful bass effect. A small-size dynamic cone speaker is more suitable for higher frequency performance because its diaphragm area is smaller and can respond more flexibly to higher frequency signals. It can be understood that the above description of "low frequency" and "high frequency" is only used to compare the relative frequency response range of large-size dynamic cone speakers and small-size dynamic cone speakers, and does not limit the actual frequency response range of the first speaker unit 21 and the second speaker unit 22.

[0071] The first speaker unit 21 and the second speaker unit 22 have different sizes and different frequency response ranges, which can expand the sound frequency range of the earphone and improve the low-frequency, mid-frequency and high-frequency performance of the earphone. Since the second speaker unit 22 is installed on the speaker support 8, and the speaker support 8 is arranged on the first speaker unit 21, the first speaker unit 21 and the second speaker unit 22 are stacked in the accommodating cavity 113, thereby improving the space utilization of the accommodating cavity 113.

[0072] Further, the first speaker unit 21 is a 1813 speaker, and the length and width dimensions of the first speaker unit 21 are 18 mm and 13 mm, respectively; the second speaker unit 22 is a Φ10 mm speaker, and the diameter of the diaphragm of the second speaker unit 22 is 10 mm.

[0073] For example, the first speaker unit 21 is used to respond to mid-frequency and low-frequency signals and emit mid-frequency and low-frequency sound waves; the second speaker unit 22 is used to prevent sound leakage, and actively emits anti-phase sound waves under the control of the main board 71 to offset the sound leakage sound waves and improve the call privacy.

[0074] In one embodiment, as shown in Figure 5 and Figure 6 , one side of the first shell 11 protrudes outward to form a sound outlet 114, and the third speaker unit 23 is a moving iron speaker, which is arranged on the side of the first speaker unit 21 away from the second speaker unit 22 and located in the sound outlet 114.

[0075] As shown in Figure 5 and Figure 6 , part of the area of one side of the first shell 11 protrudes outward to form a protruding sound outlet 114, which facilitates insertion into the user's ear canal and improves the sound collection effect. The sound emitted by the speaker unit 2 is transmitted to the user's ear through the sound outlet 114.

[0076] For example, as shown in Figure 7As shown, the opening of the sound outlet 114 is covered with a speaker decorative mesh 75 and a mesh cloth 76, which can prevent dust, fine particles and other impurities in the environment from entering the inside of the headphones, thus improving the service life of the headphones. At the same time, it can also effectively filter sound waves and improve the clarity of the sound.

[0077] The third speaker unit 23 is a moving iron type speaker with a small size. By placing the third speaker unit 23 in the sound outlet 114, the third speaker unit 23 is stacked with the first speaker unit 21. This not only makes full use of the space at the sound outlet 114 and improves the space utilization rate, but also helps to transmit the sound of the third speaker unit 23 to the user's ears more efficiently.

[0078] In one embodiment, there are two third speaker units 23, which are arranged side by side.

[0079] like Figure 3 As shown, two third speaker units 23 are arranged side by side for integration into the receiving cavity 113.

[0080] By setting the number of third speaker units 23 to two, it is convenient to use two third speaker units 23 to handle different frequency ranges, thereby improving the overall sound quality and layering of the headphones.

[0081] Furthermore, the three or more speaker units 2 also include a fourth speaker unit 24, which is a piezoelectric ceramic speaker. The fourth speaker unit 24 is located on the side of the first speaker unit 21 away from the second speaker unit 22 and is located in the sound outlet 114.

[0082] like Figure 3 As shown, the fourth speaker unit 24 is adjacent to the third speaker unit 23, and both the fourth speaker unit 24 and the third speaker unit 23 are located in the sound outlet 114.

[0083] Piezoelectric ceramic speakers are small in size and can provide high power output in a very small size and weight, with good high-frequency sound effect, which is beneficial to improving the high-frequency performance of headphones.

[0084] By placing the fourth speaker unit 24 in the sound outlet 114, and stacking the fourth speaker unit 24 with the first speaker unit 21, not only is the space at the sound outlet 114 fully utilized and the space utilization rate improved, but it is also conducive to transmitting the sound of the fourth speaker unit 24 to the user's ears more efficiently.

[0085] By setting the first to fourth speaker units 24 and having two third speaker units 23, the headphones have five speakers, which greatly improves the acoustic performance of the headphones and enables a better balance of low, mid and high frequency performance.

[0086] On the basis of any of the above embodiments, the earphone further comprises an ear hook part 3 connected to the earplug part 1.

[0087] As shown in Figure 1 or Figure 2 , the ear hook part 3 is arc-shaped, which fits the curve of human ear and is convenient for the user to wear on the top of the auricle, improving the comfort.

[0088] Optionally, as shown in Figure 1 or Figure 2 , the earphone further comprises an energy storage part 4, one end of the ear hook part 3 is connected to the earplug part 1, and the other end is connected to the energy storage part 4. The energy storage part 4 comprises a second housing 41 and a battery 42, the second housing 41 comprises a second upper housing 411 and a second lower housing 412 which are connected and form a battery cavity, and the battery 42 is accommodated in the battery cavity. The earphone further comprises a wire harness, which is accommodated in the ear hook part 3, and the battery 42 is connected to the electrical device in the accommodation cavity 113 through the wire harness, so as to realize the transmission of electric energy.

[0089] In a specific embodiment, the earphone is an OWS earphone.

[0090] In the present application, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0091] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of this application following the general principles thereof and including those expressly disclosed in the specification and attached claims. The specification and examples are to be regarded as illustrative only.

[0092] It should be understood that the present application is not limited to the precise structures described above and shown in the drawings and that various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An earphone, characterized in that, The headphones include: The earplug portion (1) includes a first housing (11) having a receiving cavity (113); Three or more speaker units (2) are disposed in the receiving cavity (113), and at least two of the three or more speaker units (2) have different frequency response ranges.

2. The earphone according to claim 1, characterized in that, The earphone also includes a microphone assembly (5) and a microphone bracket (6), both of which are located in the receiving cavity (113). The microphone assembly (5) is mounted on the microphone bracket (6), and the microphone bracket (6) is mounted on the inner wall of the first housing (11).

3. The earphone according to claim 2, characterized in that, The microphone assembly (5) includes a first microphone (51) and a second microphone (52). There are two microphone brackets (6), which are located on opposite sides of the receiving cavity (113). The first microphone (51) and the second microphone (52) are mounted on the two microphone brackets (6) in a one-to-one correspondence.

4. The earphone according to claim 1, characterized in that, The three or more speaker units (2) include a first speaker unit (21), a second speaker unit (22) and a third speaker unit (23), wherein at least one of the first speaker unit (21), the second speaker unit (22) and the third speaker unit (23) is a moving coil speaker and at least one of the moving iron speaker.

5. The earphone according to claim 4, characterized in that, Both the first speaker unit (21) and the second speaker unit (22) are dynamic speakers, and the size of the first speaker unit (21) is larger than the size of the second speaker unit (22); The headphones also include a speaker bracket (8), which is disposed on the first speaker unit (21), and the second speaker unit (22) is mounted on the speaker bracket (8).

6. The earphone according to claim 5, characterized in that, The first speaker unit (21) is an 1813 speaker, and the length and width of the first speaker unit (21) are 18mm and 13mm respectively; The second speaker unit (22) is a Φ10mm speaker, and the diameter of the diaphragm of the second speaker unit (22) is 10mm.

7. The earphone according to claim 5, characterized in that, One side of the first housing (11) protrudes outward to form a sound outlet (114); The third speaker unit (23) is a moving iron speaker. The third speaker unit (23) is located on the side of the first speaker unit (21) away from the second speaker unit (22) and is located in the sound outlet (114).

8. The earphone according to claim 7, characterized in that, The number of the third speaker units (23) is two, and the two third speaker units (23) are arranged side by side.

9. The earphone according to claim 8, characterized in that, The three or more speaker units (2) further include a fourth speaker unit (24), which is a piezoelectric ceramic speaker. The fourth speaker unit (24) is disposed on the side of the first speaker unit (21) away from the second speaker unit (22) and is located in the sound outlet (114).

10. The headphones according to any one of claims 1 to 9, characterized in that, The earphone also includes an ear hook (3), which is connected to the earplug (1).

11. The earphone according to claim 10, characterized in that, The headphones in question are OWS headphones.

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