CN217693675U - Can tone pressing ear muff and headset - Google Patents

Abstract

The application provides a formula ear muff and headset of pressing of adjustable sound includes: the ear cap comprises an annular bracket and a soft ear cap arranged on the annular bracket, wherein the soft ear cap is used for covering an auricle; the soft earmuff and the annular support form a first accommodating space therebetween, the first accommodating space is filled with a first tuning piece and a second tuning piece, and the first tuning piece is fixed on the periphery of the annular support and surrounds and covers the second tuning piece. Adopt the design of the ear muff of disconnect-type can realize simultaneously under the condition that does not influence the comfort level of wearing the regulation of each frequency channel of audio frequency thereby the production of the low frequency mechanical resonance suppression low frequency valley of effective suppression ear muff to and the frequency response of high frequency in adjusting through the different filler material in the ear muff.

Description

Ear pressing type ear muff capable of adjusting sound and headset

Technical Field

The application relates to the technical field of earphones, in particular to a sound-adjustable ear pressing type earmuff and an earphone.

Background

Earmuffs are of various types, and ear pressing type earmuffs belong to one type of earmuffs. Traditional earmuff includes the ear muff sponge and wraps up at outside screen cloth and the leather sheath of ear muff sponge, and soft sponge leather sheath covers on the people's ear when wearing, and in the time of broadcast audio frequency, the ear muff can produce low frequency mechanical resonance, forms the low frequency valley on frequency response, influences tone quality. The existing audio adjusting methods include the following two methods: first, the earmuff through the pressure ear formula is adjusted the low frequency, intermediate frequency, the high frequency of the audio frequency of broadcast, but because the earmuff is the integration, through the mode of adjusting earmuff sponge material, the full frequency channel of audio frequency all can change, and each frequency channel is difficult balanced, so easily receives the restriction to the regulation of audio frequency. Secondly, the mode of matching the structural design of the sound cavity with the tuning net is adjusted, the mode has fewer means for adjusting and playing the audio frequency, and the technical means is single. In addition, in order to play audio compatibly when the earmuff is worn, a large middle hole is usually formed in the middle of the earmuff, and the wearing comfort is affected.

Therefore, there is a need for an earmuff that can tune audio frequencies without affecting wearing comfort.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a can tuning ear-pressing formula ear muff, thereby the ear muff design of adoption disconnect-type can realize the production of the low frequency mechanical resonance suppression low frequency valley of the regulation in order to effectively restrain the ear muff to each frequency channel of audio frequency simultaneously under the condition that does not influence the comfort level of wearing to and adjust the frequency response of well high frequency through the different filler material in the ear muff.

In one aspect of the embodiment of the present application, a tunable ear pressing type earmuff is provided, which is characterized by comprising: the ear cap comprises an annular bracket and a soft ear cap arranged on the annular bracket, wherein the soft ear cap is used for covering an auricle; the soft earmuff and the annular support form a first accommodating space therebetween, the first accommodating space is filled with a first tuning piece and a second tuning piece, and the first tuning piece is fixed on the periphery of the annular support and surrounds and covers the second tuning piece.

Optionally, the first and second tuning pieces are different materials.

Optionally, the first tuning piece is made of a high-damping shock-absorbing material, the first tuning piece is annular, a hollow area is arranged in the middle of the first tuning piece, and the second tuning piece is located in the hollow area and is coated by the first tuning piece.

Optionally, the second tuning piece is made of a low-sound-resistance sound-transmission material, and a sound outlet is formed in the middle of the second tuning piece.

Optionally, the second tuning member is wrapped and fixed by the first tuning member and is not in contact with the annular bracket.

Optionally, the lower end of the annular support has a circumferential flange to which the first tuning member is secured.

Optionally, the middle part of the annular bracket is provided with a hollow area, and an annular sealing gasket is arranged between the circumferential flanging of the annular bracket and the first tuning piece.

Optionally, the tuning ear pressing type ear muff is connected with an ear cavity, the ear cavity has a headset panel, the ring support deviates from the surface of the soft earmuff with the headset panel is connected, the ear cavity is provided with a second accommodating space, the second accommodating space is provided with an electroacoustic transducer, and the ring support is smaller than the size of the first tuning piece along the size of the contact part of the headset panel in the width direction of the ear muff.

Optionally, an opening is formed in one side, facing the auricle, of the soft earmuff, and the opening is covered with a mesh cloth.

In one aspect of the embodiments of the present application, a headset is provided, wherein the headset ear muff adopts a sound-adjustable ear pressing type ear muff containing any one of the above mentioned sound-adjustable ear muffs, and the sound-adjustable ear pressing type ear muff is detachably connected with an ear cavity.

The utility model provides a can tune auricle form ear muff contains soft earmuff and ring carrier, form first accommodation space between its soft earmuff and the ring carrier, it has first tuning and second tuning to fill at first accommodation space, first tuning and second tuning adopt disconnect-type material filling design, thereby can realize simultaneously suppressing the production of the low frequency mechanical resonance suppression low frequency valley of the low frequency mechanical resonance of ear muff to the regulation of each frequency channel of audio frequency to and adjust the frequency response of well high frequency through the different filler material in the ear muff. In addition, because two kinds of different materials all fill in soft earmuff, can not cause the influence to the whole outward appearance of earmuff, and whole earmuff is connected with ear cavity detachably, facilitates the use and changes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a tunable ear-pressing earmuff provided in this embodiment;

fig. 2 is a schematic structural diagram of a soft earmuff of a tunable ear-pressing earmuff provided in this embodiment;

fig. 3 is one of schematic views of a connection structure of a tunable auricle-type ear muff and a sound cavity provided in the present embodiment;

fig. 4 is a second schematic view of a connection structure between the tunable ear-pressing type earmuff and the sound cavity provided in this embodiment.

An icon: 1-a ring-shaped support; 11-a first accommodating space; 12-flanging; 13-a hollow region; 2-soft ear cap; 21-a first tuning member; 22-a second tuning piece; 22A-sound outlet; 23-screen cloth; 3-ear cavity; 31-a second accommodating space; 32-an electroacoustic transducer; 33-a headset shell; 34-a boss; 4-annular sealing gasket.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Specifically, referring to fig. 1, the tunable ear-pressing type earmuff provided in the embodiment of the present application includes: the earmuff comprises an annular support 1 and a soft earmuff 2 arranged on the annular support, wherein the soft earmuff 2 is used for covering the auricle. A first accommodating space 11 is formed between the soft earmuff 2 and the annular support 1, a first tuning piece 21 and a second tuning piece 22 are filled in the first accommodating space 11, and the first tuning piece 21 is fixed on the outward flange 12 of the annular support 1 and surrounds and covers the second tuning piece 22. The first tuning piece 21 and the second tuning piece 22 are of a separable structure, and different materials are adopted for the first tuning piece and the second tuning piece. Specifically, the first tuning member 21 is formed of a ring-shaped structure made of a high-damping material, and a hollow region is provided in the middle thereof, the second tuning member 22 is located in the hollow region and covered by the first tuning member 21, and the second tuning member 22 is formed of a low-sound-blocking material, and a sound outlet hole 22A is provided in the middle thereof, and sound radiation from the electroacoustic transducer 32 can be transmitted from the sound outlet hole 22A into the ear canal.

As shown in fig. 2, the soft ear cap 2 is adapted to fit over the ear to cover the entire ear. The soft ear cap 2 can be contoured according to specific needs, and in one implementation of the present application, the soft ear cap 2 has an oval ring structure adapted to the shape of the ear, and has a thickness and a width, and the dimensions depend on the design and the thickness of the internal tuning piece, such as the width of the soft ear cap 2 is 20-30mm, and the height of the soft ear cap 2 is 70-80mm. An opening is arranged on one side of the soft ear cap 2 facing to the auricle, the opening is covered with a mesh cloth 23, and each mesh of the mesh cloth 23 is rhombic, square or circular. The mesh 23 is required to cover the second tuning piece 22 as a sound outlet hole 22A, and in order to balance the medium-frequency and high-frequency components of the playing frequency response, the diameter of the sound outlet hole 22A is preferably 14-15 mm.

As shown in fig. 1, the first accommodating space 11 is filled with a first tuning member 21 and a second tuning member 22, and the first tuning member 21 is fixed on the circumferential edge 12 of the annular bracket and surrounds and covers the second tuning member 22. Specifically, the first tuning piece 21 inside the soft ear cap 2 is made of a high damping material, and the first tuning piece 21 is attached to the inner wall of the soft ear cap 2, and may be provided according to the contour of the soft ear cap 2 without limitation to the shape thereof. For example, the first tuning member 21 may be ring-shaped, and the height of the ring-shaped member is slightly less than the height of the soft ear cap 2, such as 18-28mm.

As shown in fig. 3, the tuning ear-pressing type ear muff is connected with an ear cavity 3, the ear cavity 3 has an ear microphone surface shell 33, the surface of the ring-shaped support 1 departing from the soft ear muff 2 is connected with the ear microphone surface shell 33, a second accommodating space 31 is arranged in the ear cavity 3, an electroacoustic transducer 32 is arranged in the second accommodating space 31, and the size of the ring-shaped support 1 and the ear microphone surface shell 33 along the contact part is smaller than that of the first tuning piece 21 along the width direction of the ear muff. Namely, the first tuning member 21 needs to cover the contact position of the annular bracket 1 and the headset face shell 33, for example, the width of the annular first tuning member 21 is 50-80mm, and when the first tuning member 21 needs to cover the contact position of the annular bracket 1 and the headset face shell 33, the first tuning member 21 can better play a role in reducing mechanical vibration. The first tuning piece 21 is fixed on the outward flange 12 of the annular support 1 and surrounds and covers the second tuning piece 22, and in order to ensure that mechanical vibration cannot be transmitted to the second tuning piece 22 in a contact mode when the headset is worn, the second tuning piece 22 is assembled with the annular support 1 to be away from the annular support 1, namely the second tuning piece 22 is covered, tied and fixed by the first tuning piece 21 and does not contact with the annular support 1. Preferably, the first tuning piece 21 is fixed with the second tuning piece 22 by extruding the second tuning piece 22 through a size interference design, and the second tuning piece 22 is not in contact with the annular support 1. Therefore, the shape and size of the second tuning member 22 need to be designed and adjusted according to the first tuning member 21, if the second tuning member 22 is annular, the annular outer diameter width of the second tuning member 22 is smaller than the annular inner diameter width of the first tuning member 21, and if the height and width of the second tuning member 22 are in the range of 13-25mm and 45-62mm.

Further, the high damping vibration absorbing material used by the first tuning piece 21 includes but is not limited to the following: high-density memory sponge, polymer gel material, synthetic rubber polymer and other materials. Generally, the high damping shock absorbing material mainly has two types of free layer damping and constrained layer damping. When the adopted high-damping shock absorption material is free layer damping, the free layer damping is formed by bonding a layer of high-damping material on the surface of the earmuff bracket, when the earmuff vibrates, the damping material is stretched, part of vibration energy is consumed by viscoelastic internal friction force between polymer chains, and mechanical vibration is reduced. In order to enhance the damping effect, the thickness of the general damping material is 1-3 times of that of the earmuff bracket, and the damping material is required to have a larger elastic modulus. If the high damping shock-absorbing material who adopts is when the restraint layer damping, the surface of restraint layer damping at the earmuff support pastes one deck viscoelasticity high damping material, increase the restraint board of one deck again on the aspect of outer layer, the annular support 1 of earmuff is adopted here in this application, damping material mainly receives the shearing action when the earmuff vibrates, partly vibration energy becomes heat energy, play the purpose that reduces the earmuff vibration, this kind is exactly turning into heat energy with external force, because the dissipation of this kind of energy, the earmuff amplitude can pass through it and reduce, the sound that produces from this vibration also can reduce. The first tuning member 21 can achieve suppression of low frequency valleys by suppressing mechanical resonance.

Further, the low acoustical resistance and sound transmission material used for the second tuning piece 22 includes, but is not limited to, the following: low-density common sponge, glass wool and other materials. The material should have a large number of pores and interstices within it, and the pores should be as fine as possible and uniformly distributed within the material.

Referring to fig. 1 to 3, the damping and low-frequency-valley suppression principle of the tuning ear-pressing type earmuff provided in the embodiment of the present application is as follows: the electroacoustic transducer 32 will normally work to generate vibrations which will transmit mechanical vibrations through the ring support 1 and the headset shell 33 into the ear cup, which vibrations will thus generate a low frequency signal in phase opposition to the electroacoustic transducer 32, resulting in the generation of a low frequency valley. The first tuning piece 21, which is a high damping material, is used inside the ear cup, so that the amplitude of mechanical vibration is reduced, sound generated by the vibration is reduced, and low frequency valleys are suppressed.

Referring to fig. 1 to 3, the medium-frequency and high-frequency tuning principles of the tunable ear-pressing earmuffs provided in the embodiments of the present application are as follows: electroacoustic transducer 32 can outwards carry out the acoustic energy radiation, its cavity and different material characteristics can cause the influence to frequency response's different frequency channels, the principle of sound cavity structure tuning is the tuning of application helmholtz resonator, when electroacoustic transducer 32 radiates the frequency of sound wave and the resonator frequency is unanimous, the system can take place the resonance, and make the acoustic vibration in the system produce and strongly amplify, certain sound absorption effect is played, low-sound passes through the sound material and has a large amount of micropores and clearance in the second tuning 22 promptly, form a helmholtz resonator, micropore and clearance through adjusting in the second tuning 22, like density and trompil number, come the frequency point of control effect, the effect frequency point of pressure ear formula headset is mainly the intermediate frequency, thereby play the effect of frequency control. The high-frequency tuning device has the characteristics of strong directivity and easiness in attenuation for high frequency, the high frequency is adjusted through a low-sound-resistance sound-transmitting material, namely the second tuning piece 22, and the energy loss of the high frequency is reduced through reducing the sound resistance Ras, so that the frequency adjusting function is realized.

To sum up, the tunable ear-pressing earmuff provided by the embodiment of the application is filled with the first tuning piece 21 and the second tuning piece 22 in the first accommodating space 11, the first tuning piece 21 and the second tuning piece 22 are filled with the separated materials, the first tuning piece 21 is made of the high-damping materials, and the second tuning piece 22 is made of the low-sound-resistance sound-transmission materials. Therefore, the adjustment of each frequency band of the audio frequency can be realized simultaneously so as to effectively inhibit the low-frequency mechanical resonance of the ear cover and further inhibit the generation of low-frequency valleys, and the frequency response of medium and high frequencies can be adjusted through different filling materials in the ear cover. In addition, because two kinds of different materials all fill in soft earmuff 2, can not cause the influence to the whole outward appearance of earmuff, and whole earmuff is connected with 3 detachably in the ear cavity, facilitates the use and changes.

Further, as shown in fig. 4, the middle of the ring-shaped support 1 has a hollow area 13, a protruding portion 34 is provided on the earphone face shell 33 of the ear cavity 3, and the inner diameter width of the hollow area 13 of the ring-shaped support 1 is larger than the outer diameter width of the protruding portion 34 on the earphone face shell 33, so that the tuning ear-pressing earmuff is connected with the ear cavity 3 in a plugging manner.

Further, referring to fig. 1, the lower end of the ring-shaped bracket 1 is provided with a circumferential flanging 12, and the first tuning piece 21 is fixed on the circumferential flanging 12. Here, the outward flange 12 corresponds to a constraining damping layer, i.e., a constraining plate on the outer layer surface of the first tuning member 21.

Preferably, the outward flange 12 of the ring-shaped support 1 and the headset face shell 33 are both provided with buckles, so that the adjustable ear pressing type ear muffs are fixedly connected with the ear cavity 3 through the buckles.

Further, referring to fig. 1, an annular seal 4 is disposed between the flange 12 and the first tuning member 21. Preferably, when the tuning ear pressing type earmuff is connected with the ear cavity 3, one side of the annular sealing gasket 4 is in contact with the ear cavity 3, so that when the tuning ear pressing type earmuff is connected with the ear cavity 3, the annular sealing gasket 4 can absorb the mechanical vibration transmitted to the annular support 1 through the flanging 12 and then transmitted to the first tuning part 21 from the ear cavity 3, and the effect of reducing the mechanical vibration by the first tuning part 21 is better assisted.

Preferably, the annular seal 4 is made of Ethylene Vinyl Acetate (EVA) material.

Further, this application still provides a headset, and the earmuff of this headset adopts the ear-pressing formula earmuff that contains arbitrary one of above-mentioned adjustable sound, but carries out the grafting of the ear-pressing formula earmuff and the ear cavity 3 of tuning through hollow region 13 of ring carrier 1 and the bellying 34 of headset face-piece 33 to buckle through ring carrier 1 and headset face-piece 33 is connected fixedly, thereby realizes the ear-pressing formula earmuff and the ear cavity 3 detachably connection of tuning.

Generally speaking, the tuning ear-pressing type earmuff provided by the embodiment of the application is filled with the first tuning 21 and the second tuning 22 in the first accommodating space 11, the first tuning 21 and the second tuning 22 are designed by adopting a separated material filling mode, the first tuning 21 is made of a high-damping and shock-absorbing material, and the second tuning 22 is made of a low-sound-blocking and sound-transmitting material. Consequently can realize the regulation to each frequency channel of audio frequency simultaneously, because the ear muff fills no longer integrative singleness, increased the tuning variety for the high, well, low frequency influence mutual independence of ear muff realizes effectively suppressing thereby the production that the low frequency mechanical resonance of ear muff restraines the low frequency valley simultaneously, and adjusts the frequency response of well high frequency through different filling material in the ear muff. In addition, because two kinds of different materials all fill in soft earmuff 2, can not lead to the fact the influence to the whole outward appearance of earmuff, and whole earmuff is connected with 3 detachably in ear chamber, facilitates the use and changes. Finally, due to the adoption of the separated support and the large sound transmission area, the sound transmission area is filled more fully, the wearing comfort level is improved when the sound transmission area is in contact with the ears of a person, meanwhile, the sufficient sound transmission area is beneficial to the full play of the earmuffs, and the tone quality can be well ensured.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a can adjust auricle formula ear muff which characterized in that includes: the ear cap comprises an annular bracket and a soft ear cap arranged on the annular bracket, wherein the soft ear cap is used for covering an auricle;

the soft earmuff and the annular support form a first accommodating space therebetween, the first accommodating space is filled with a first tuning piece and a second tuning piece, and the first tuning piece is fixed on the periphery of the annular support and surrounds and covers the second tuning piece.

2. The tunable earmuff of claim 1, wherein the first and second tuning members are different materials.

3. The tunable ear-pressing earmuff of claim 1 wherein the first tuning member is made of a high damping material, the first tuning member being annular and having a hollow region disposed in a center thereof, the second tuning member being located within the hollow region and being encapsulated by the first tuning member.

4. A tunable, ear-pressing ear cup according to claim 1 wherein said second tuning piece is made of a low sound-resistance and sound-transmitting material, and said second tuning piece has a sound outlet hole in the middle.

5. The tunable earmuff of claim 1, wherein the second tuning member is over-secured by the first tuning member and is free of contact with the annular bracket.

6. The tunable earmuff of claim 1, wherein the lower end of the annular support has a circumferential outward flange to which the first tuning member is secured.

7. A tuned, ear-pressing ear cup according to claim 5, wherein the annular frame has a hollow region in the middle and an annular gasket is provided between the peripheral flange of the annular frame and the first tuning member.

8. The tunable ear-pressing earmuff according to claim 1, wherein the tunable ear-pressing earmuff is connected with an ear cavity, the ear cavity has an ear-microphone shell, the surface of the ring-shaped support facing away from the soft earmuff is connected with the ear-microphone shell, a second accommodating space is arranged in the ear cavity, an electroacoustic transducer is arranged in the second accommodating space, and the size of the ring-shaped support and the ear-microphone shell along the contact part is smaller than that of the first tuning piece along the width direction of the earmuff.

9. A tunable ear-pressing earmuff according to claim 8, wherein the soft earmuff has an opening on the side facing the pinna, and the opening is covered with a mesh.

10. A headset, characterized by: the headset includes a tunable ear-pressing ear cup according to any one of claims 1-9, which is detachably connected to the ear cavity.

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