A headset head and a headset

Abstract

The utility model discloses a kind of earphone head and head-mounted earphone, it relates to earphone technical field, earphone head is covered in ear outside when using, it includes shell assembly, loudspeaker and magnetic fluid component, shell assembly includes transparent part;Loudspeaker is located in the shell assembly;Magnetic fluid component is located in the shell assembly, including the transparent container with magnetic fluid and the magnetic field generator of the opposite setting with the transparent container, the magnetic field generator is used to generate the magnetic field of driving the motion of the magnetic fluid, the transparent container is located between the transparent part and the magnetic field generator.The motion of magnetic fluid can be observed from earphone head outside by transparent part, so that earphone head presents dynamic visual effect, visual effect is better, can increase the aesthetic and interesting of earphone head, improve product competitiveness, while the state of magnetic fluid can be used to indicate the state of earphone, realize more abundant interaction.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to an earphone head and a headphone. Background Technology

[0002] Headphones are a type of sound playback device that typically includes a headband and two earpieces connected to both ends of the headband. The two earpieces cover the outside of the ears and contain speakers that convert electrical signals into sound signals, allowing the listener to hear the sound.

[0003] Headphones typically only have sound playback functionality, providing users with auditory enjoyment and experience. However, they are usually static in appearance and have a relatively simple visual effect. Improving the visual effect of headphones can enrich their functionality and enhance their competitiveness.

[0004] The above content is only used to help understand the technical solution of this application and does not constitute an admission that the above is prior art. Utility Model Content

[0005] The purpose of this invention is to provide an earphone head and a headphone to enhance the visual appeal of the headphones.

[0006] To achieve the aforementioned utility model objective, in a first aspect, this utility model proposes an earphone head that covers the outside of the ear during use, comprising:

[0007] Housing assembly, including the transparent portion;

[0008] A loudspeaker, disposed within the housing assembly; and,

[0009] A magnetofluid assembly, disposed within the housing assembly, includes a transparent container containing magnetofluid and a magnetic field generator disposed opposite to the transparent container. The magnetic field generator is used to generate a magnetic field that drives the movement of the magnetofluid. The transparent container is located between the transparent portion and the magnetic field generator.

[0010] Furthermore, the housing assembly includes a first cavity, a second cavity, and a partition separating the first cavity and the second cavity. The speaker is disposed in the first cavity, and the transparent container is disposed in the second cavity. When the earphone is worn, the second cavity is further away from the human head than the first cavity.

[0011] Furthermore, the partition plate has mounting holes, and the magnetic field generator is at least partially located within the mounting holes.

[0012] Furthermore, the earphone head also includes a circuit board disposed within the first cavity, the magnetic field generator includes a coil, the lead of the coil is disposed on the side close to the first cavity, the speaker and the magnetic field generator are both electrically connected to the circuit board, the circuit board is provided with a power amplifier, electrical signals are simultaneously input to the speaker and the magnetic field generator, and the electrical signal input to the magnetic field generator is first amplified by the power amplifier.

[0013] Furthermore, the housing assembly also includes an isolation shield covering the outside of the speaker, the isolation shield separating the speaker and the magnetofluid assembly.

[0014] Furthermore, the isolation enclosure has a plate portion located between the speaker and the magnetofluid assembly;

[0015] At least the plate portion is made of a magnetically conductive material; or,

[0016] At least the plate portion is provided with a magnetic shielding layer.

[0017] Furthermore, the housing assembly includes a main housing, an end housing, and a back housing. The main housing includes a partition and a first annular portion and a second annular portion extending from both sides of the partition. The end housing is connected to the open end of the first annular portion, and the back housing is connected to the open end of the second annular portion. The back housing is provided with the transparent portion. A first cavity is formed between the end housing, the partition, and the first annular portion, and a second cavity is formed between the back housing, the partition, and the second annular portion.

[0018] Furthermore, the first annular portion includes a second portion and a first portion connected between the second portion and the partition. The longitudinal section of the first portion has an inner and outer concave arc shape, and its cross-sectional area gradually increases towards the side where the second portion is located. The longitudinal section of the second portion has an inner and outer straight shape. The earphone head includes a circuit board electrically connected to the magnetic field generator and the speaker. The circuit board is located within the second portion.

[0019] Furthermore, the earphone head also includes buttons and / or interfaces connected to the circuit board and exposed from the second part.

[0020] Furthermore, the speaker is connected to the end housing, and the housing assembly also includes an isolation cover covering the outside of the speaker. The earphone head includes a circuit board electrically connected to the magnetic field generator and the speaker. The isolation cover is biased to one side of the cross-section of the first annular portion along the length direction, thereby forming a receiving space for accommodating the circuit board.

[0021] Furthermore, the earphone head also includes an ear cup connected to the end housing, and when the earphone head is worn, the ear cup covers the outside of the ear.

[0022] Furthermore, the transparent container is attached to the transparent portion.

[0023] Furthermore, both the outer and inner surfaces of the transparent portion are arc-shaped, protruding outwards from the earphone head, and the surface of the transparent container that is in contact with the inner surface is adapted to the shape of the inner surface.

[0024] Furthermore, the surface of the transparent container facing the magnetic field generator is planar and perpendicular to the axis of the magnetic field generator.

[0025] Furthermore, the magnetofluid is amplified by the sidewall of the transparent container near the transparent part and / or by the transparent part.

[0026] Secondly, this utility model proposes a headphone, including a headband and headphone heads respectively connected to both ends of the headband, wherein the headphone heads are headphone heads as described in any of the above claims.

[0027] Compared with the prior art, the present invention has the following beneficial effects: According to at least one embodiment of the present invention, the earphone head includes a shell assembly, a speaker, and a magnetofluid assembly. The shell assembly has a transparent portion, and the magnetofluid assembly includes a transparent container containing magnetofluid and a magnetic field generator disposed opposite to the transparent container. The magnetic field generator is used to generate a magnetic field that drives the movement of the magnetofluid. The transparent container is located between the transparent portion and the magnetic field generator. The movement of the magnetofluid can be observed from the outside of the earphone head through the transparent portion, thereby giving the earphone head a dynamic visual effect. The visual effect is better, which can increase the aesthetics and fun of the earphone head, enhance product competitiveness, and at the same time, the state of the magnetofluid can be used to indicate the state of the earphone, realizing richer interaction. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the headphone head in some embodiments of this utility model.

[0029] Figure 2 yes Figure 1 The image shows a cross-sectional view of the headphone head.

[0030] Figure 3 This is a schematic diagram showing the connection between the transparent container and the back shell in some embodiments of this utility model.

[0031] Figure 4 This is a cross-sectional schematic diagram showing the connection between the transparent container and the back shell in some embodiments of this utility model.

[0032] Figure 5This is a cross-sectional schematic diagram showing the connection between the transparent container and the back shell in some embodiments of this utility model.

[0033] Figure 6 This is a cross-sectional schematic diagram showing the connection between the transparent container and the back shell in some embodiments of this utility model.

[0034] Figure 7 This is a cross-sectional schematic diagram showing the connection between the transparent container and the back shell in some embodiments of this utility model.

[0035] Figure 8 This is a perspective view of some embodiments of the present invention when the earphone head does not show the back shell and transparent container.

[0036] Figure 9 This is an exploded view of the housing assembly of some embodiments of this utility model.

[0037] Figure 10 This is a schematic diagram showing the positions of the isolation cover and circuit board in some embodiments of this utility model.

[0038] Figure 11 This is a schematic diagram of the headphone head in some embodiments of this utility model.

[0039] Figure 12 yes Figure 1 The diagram shows another view of the headphone head.

[0040] Figure 13 This is a schematic diagram of the structure of the earphone in some embodiments of this utility model. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0042] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] Some embodiments of this utility model propose an earphone head, such as Figure 1 and Figure 2 As shown, the headphone head includes a housing assembly 1, a speaker 2, and a magnetic fluid assembly 3, with the speaker 2 and the magnetic fluid assembly 3 both located inside the housing assembly 1.

[0045] The housing assembly 1 has a transparent portion 10, which is made of a light-transmitting material so that the internal magnetofluid assembly 3 can be observed from the outside. The transparent material can be, for example, plastic or glass.

[0046] Speaker 2 is used to generate sound based on electrical signals.

[0047] The magnetofluid assembly 3 includes a transparent container 30 containing magnetofluid and a magnetic field generator 31 disposed opposite to the transparent container 30. The magnetic field generator 31 is used to generate a magnetic field that drives the movement of the magnetofluid. In some embodiments, the magnetic field generator 31 includes a coil that generates a changing magnetic field when energized. In other embodiments, the magnetic field generator 31 includes a coil and an iron core disposed within the coil.

[0048] The transparent container 30 is located between the transparent section 10 and the magnetic field generator 31. This arrangement brings the transparent container 30 closer to the transparent section 10, allowing for clearer observation of the magnetofluid's state changes from within the transparent section 10. The transparent container 30 is also made of a transparent material, optionally glass, which offers good light transmittance and corrosion resistance.

[0049] Because the magnetofluid possesses magnetism, it can move in response to the magnetic field generated by the magnetic field generator 31. When the magnetic field generated by the magnetic field generator 31 exhibits a certain regularity, the magnetofluid will also produce a corresponding regular movement. The movement of the magnetofluid can be observed from the outside of the earphone head, thus giving the earphone head a dynamic visual effect. This enhanced visual effect increases the aesthetics and fun of the earphone head, improving product competitiveness. Furthermore, the state of the magnetofluid can indicate the state of the earphone, enabling richer interaction.

[0050] For example, magnetofluids can create an effect that moves in sync with music. When the magnetofluid is observed to move rhythmically, it indicates that the headphones are playing music. The rhythm of the magnetofluid's movement can also indicate the type of music being played, such as whether it is soothing or fast-paced. Furthermore, in standby mode, the magnetofluid can be controlled to undergo slow, repetitive state changes, creating a breathing-like effect. When this state change is observed, it indicates that the headphones are in standby mode.

[0051] Clearly, more headphone statuses can be displayed through the different motion states of the magnetofluid, such as charging indicators, call indicators, etc., thereby enriching the headphone's interactive capabilities and making its functions more diverse.

[0052] In some embodiments, the transparent container 30 is attached to the transparent portion 10 so that the state changes of the magnetofluid can be more clearly observed from the outside. Optionally, the transparent container 30 and the transparent portion 10 are connected by adhesive. Alternatively, as... Figure 3 As shown, the housing assembly 1 is provided with a plurality of protruding limiting blocks 170, and the transparent container 30 is disposed between the limiting blocks 170 and limited by the limiting blocks 170. Further optionally, the limiting blocks 170 are engaged with the outer periphery of the transparent container 30 to achieve fixation. Of course, the limiting blocks 170 can also be engaged with the housing assembly 1 and glued to the transparent part 10 at the same time.

[0053] like Figure 4 As shown, the transparent container 30 has a first outer surface 100 relatively close to the outer side of the earphone head and a first inner surface 101 relatively close to the inner side of the earphone head. The transparent container 30 also has a second outer surface 300 relatively close to the outer side of the earphone head and a second inner surface 301 relatively close to the inner side of the earphone head. In some embodiments, both the first outer surface 100 and the first inner surface 101 of the transparent portion 10 are arc-shaped, convex outwards from the earphone head. The second outer surface 300 of the transparent container 30, which is in contact with the first inner surface 101, is also arc-shaped, convex outwards, and its shape is adapted to the first inner surface 101. The convex surface can increase the display area, increase the capacity of the magnetic fluid, and make it easier to be observed from the outside. Optionally, the second inner surface 301 is also arc-shaped, convex outwards, so that the state of the magnetic fluid observed from the outside is more consistent with the state of the magnetic fluid itself.

[0054] Optionally, in some embodiments, the magnetic fluid observed externally is magnified. For example, the magnetic fluid can be magnified by the transparent container 30 near the side wall 303 of the transparent part 10 and / or the transparent part 10. For example, the transparent part 10 and / or the transparent container 30 near the side wall 303 of the transparent part 10 can be set as a convex lens so that the observed magnetic fluid is larger. In this way, a smaller transparent container 30 can also visually display a larger effect, which is beneficial to reduce the size of the headphone head and reduce its weight. Figure 5 In the illustrated embodiment, the first outer surface 100 of the transparent portion 10 is convex arc-shaped, and the first inner surface 101 is planar to form a lens structure. The second outer surface 300 and the second inner surface 301 of the transparent container 30 are also planar. Figure 6 In the illustrated embodiment, the first outer surface 100 and the first inner surface 101 of the transparent portion 10 are both arc-shaped and protrude outwards, the second outer surface 300 of the transparent container 30 is an outwardly convex arc shape, and the second inner surface 301 is planar, so as to form a lens structure.

[0055] In some embodiments, the first outer surface 100, the first inner surface 101, the second outer surface 300, and the second inner surface 301 are all planar.

[0056] In some embodiments, the third outer surface 302 of the transparent container 30 facing the magnetic field generator 31 is planar and perpendicular to the axis 310 of the magnetic field generator 31, which can be understood as the axis of its coil. In this way, the magnetofluid inside the transparent container 30 can more uniformly sense changes in the magnetic field, its state changes are more uniform, and the response of each part is more consistent.

[0057] In some embodiments, such as Figure 2 As shown, the housing assembly 1 includes a first cavity 11, a second cavity 12, and a partition 13 separating the first cavity 11 and the second cavity 12. The speaker 2 is located in the first cavity 11, and the transparent container 30 is located in the second cavity 12. When the earphone is worn, the second cavity 12 is farther away from the head than the first cavity 11, which improves the protection of the speaker 2. At the same time, the transparent container 30 is positioned closer to the outside, making the arrangement more reasonable. Optionally, the transparent part 10 is located on the outermost side of the housing assembly 1 away from the head, where there is a larger surface area. The area of ​​the transparent part 10 and the area of ​​the transparent container 30 can be made larger, making it easier to display the magnetofluid.

[0058] The magnetic field generator 31 is connected to the partition 13, making the connection more secure. In some embodiments, the magnetic field generator 31 is located within the second cavity 12 and is fixedly connected to the partition 13. In other embodiments, such as Figure 2 and Figure 8 As shown, the partition 13 has a mounting hole 130, and the magnetic field generator 31 is at least partially located within the mounting hole 130 and is connected and fixed to the partition 13. When the magnetic field generator 31 is partially located within the mounting hole 130, space can be fully utilized, improving the compactness of the structure and facilitating the miniaturization of the earphone head. At the same time, the mounting hole 130 can position the magnetic field generator 31, making the relative positional accuracy between the magnetic field generator 31 and the transparent container 30 higher.

[0059] The earphone head includes a circuit board 4 located in the first cavity 11. The speaker 2 and the magnetic field generator 31 are both connected to the circuit board 4. The magnetic field generator 31 is located in the mounting hole 130, and its coil lead is located on the side close to the first cavity 11, which makes it easier to connect to the circuit board 4.

[0060] Optionally, when playing an audio signal, an electrical signal is simultaneously input to the speaker 2 and the magnetic field generator 31, so that the magnetic field generator 31 can exhibit changes consistent with the rhythm of the audio signal. The circuit board 4 includes a power amplifier, and the electrical signal input to the magnetic field generator 31 is first amplified by the power amplifier, so that the magnetic field generator 31 can generate a larger magnetic field to drive the reliable movement of the magnetohydrodynamic fluid.

[0061] like Figure 2 and Figure 9 As shown, the housing assembly 1 includes a main housing 15, an end housing 16 and a back housing 17. The main housing 15 includes the aforementioned partition 13 and a first annular portion 151 and a second annular portion 152 extending outward from both sides of the partition 13.

[0062] The end housing 16 is connected to the open end of the first annular portion 151. The end housing 16 includes an end plate 160 that blocks the open end of the first annular portion 151. The speaker 2 is connected to the end plate 160. The first cavity 11 is formed between the end housing 16, the first annular portion 151 and the partition 13.

[0063] The back shell 17 is connected to the open end of the second annular portion 152. The back shell 17 is provided with the transparent portion 10. The second cavity 12 is formed between the back shell 17, the second annular portion 152, and the partition 13. The transparent portion 10 and other materials of the back shell 17 can be connected together, for example, by adhesive bonding or two-color injection molding.

[0064] In some embodiments, such as Figure 2 and Figure 10 As shown, the housing assembly 1 also includes an isolation cover 14 covering the outside of the speaker 2. The isolation cover 14 separates the speaker 2 and the magnetofluid assembly 3, thereby improving the protection of the speaker 2. In some embodiments, the isolation cover 14 is made of a magnetically conductive material, or a magnetic shielding layer is provided on the outside of the isolation cover 14 to reduce magnetic field interference between the speaker 2 and the magnetofluid assembly 3, which is beneficial to improving the reliability of the speaker 2 and the accuracy of the magnetic field response of the magnetofluid to the magnetic field generator 31. The isolation cover 14 has a plate portion 141 located between the speaker 2 and the magnetofluid assembly 3. Optionally, at least the plate portion 141 is made of a magnetically conductive material or is provided with a magnetic shielding layer to reduce magnetic field interference. When the isolation cover 14 is entirely made of a magnetically conductive material or its entire surface is provided with a magnetic shielding layer, it can better reduce magnetic field interference.

[0065] The isolation cover 14 is connected to the end housing 16, specifically, it is connected to the end plate 160 of the end housing 16. The circuit board 4 is connected to the main housing 15, as shown below. Figure 2 As shown, the main housing 15 has a limiting post 153 protruding from the partition 13 toward the end plate 160, and the circuit board 4 is connected to the limiting post 153. The limiting post 153 makes the circuit board 4 and the magnetic field generator 31 closer together, making wiring easier. At the same time, the plate portion 141 on the side of the isolation cover 14 near the magnetic field generator 31 has a wire through hole 140 through which the coil lead of the speaker 2 passes. The limiting post 153 also makes the circuit board 4 closer to the plate portion 141, thereby facilitating wiring with the speaker 2.

[0066] The first annular portion 151 of the main housing 15 includes a second portion 1511 and a first portion 1510 connecting the second portion 1511 and the partition 13. The longitudinal section of the first portion 1510 has an inner and outer concave arc shape, and its cross-sectional area gradually increases towards the side where the second portion 1511 is located. The longitudinal section of the second portion 1511 has an inner and outer straight shape and extends along the axial direction of the main housing 15. The longitudinal section refers to the cross-section obtained by cutting the corresponding portion through a plane passing through the axial direction of the main housing 15. Figure 2 The longitudinal section of the main housing 15 is shown. The cross section refers to the section obtained by cutting the corresponding part through a plane perpendicular to the axis of the main housing 15 (Figure * shows the cross section of the main housing 15). Figure 2 In the illustrated embodiment, the axis of the main housing 15 is aligned with the axis 310 of the magnetic field generator 31.

[0067] Circuit board 4 is located within the first portion 1510, and it is understood that it is limited within the first portion 1510 by a limiting post 153. The earphone head also includes a button 6, which is exposed from the housing assembly 1 and electrically connected to circuit board 4. Figure 2 and Figure 10 As shown, button 6 is exposed from the first annular portion 151 of the housing assembly 1, specifically from the second portion 1511. Since the longitudinal section of the first portion 151 has a flatter profile, button 6 can be more easily positioned. Optionally, the isolation cover 14 is offset to the upper side of the housing assembly 1, with button 6 exposed from below the first annular portion 151, further facilitating button 6 placement. The number of buttons 6 can be one or more, such as volume up / down buttons, a power button, etc. Furthermore, buttons 6 can be provided on both earpieces of the headphones, or only on one earpiece.

[0068] like Figure 11 As shown, the headphone head also includes an interface 7, which is exposed from the housing assembly 1 and electrically connected to the circuit board 4. The interface 7 may be, for example, a TYPE-C interface.

[0069] It is understandable that the earphone head can have only button 6, only interface 7, or both button 6 and interface 7.

[0070] The earphone head also includes an earcup 18 connected to the end housing 16. When the earphone head is worn, the earcup 18 covers the outside of the ear. The earcup 18 has flexible padding inside to improve wearing comfort and better isolate external noise. It is understandable that the partition 13, which divides the housing assembly 1 into a first cavity 11 and a second cavity 12, and the isolation cover 14, are all beneficial for further isolating external noise and further improving sound quality.

[0071] Optionally, the length of the cross-section of the end housing 16 is greater than its width. The cross-section of the end housing 16 refers to the surface obtained by cutting the end housing 16 with a plane perpendicular to its axis. In this way, the cross-section of the end housing 16 more closely matches the shape of the ear, and the earmuff 18 adapts to the shape of the cross-section of the end housing 16 (its length is also greater than its width), and is also more closely aligned with the shape of the ear (e.g., Figure 12 As shown), it can better cover the ears when the earphone is in use. Optionally, the length of the cross-section of each part of the housing assembly 1 is greater than its width, and the length and width directions are consistent with the length and width directions of the cross-section of the first cavity 11. Figure 2 In the illustrated embodiment, the axes of the main housing 15, the end housing 16, and the back housing 17 are all aligned with the axis of the housing assembly 1, and also with the axis 310 of the magnetic field generator 31.

[0072] Optionally, the cross-sectional area of ​​the second cavity 12 is smaller than that of the first cavity 11, that is, the second annular portion 152 is thinner than the first annular portion 151, making it easier for people to hold the earphone head for wearing.

[0073] In some embodiments, the isolation cover 14 is biased to one side of the cross-sectional length direction of the first annular portion 151 (specifically, the second portion 1511 of the first annular portion 151), thereby forming a receiving space for accommodating the circuit board 4 between the isolation cover 14 and the first annular portion 151 (specifically, the second portion 1511 of the first annular portion 151). Optionally, the circuit board 4 is arc-shaped to fit the shape of the receiving space, thereby having a larger area and allowing more electronic components to be installed.

[0074] It is understandable that dividing the housing assembly 1 into a main housing 15, an end housing 16, and a back housing 17, and connecting the speaker 2 and the isolation cover 14 to the end housing 16, the magnetic field generator 31 to the main housing 15, and the transparent container 30 to the back housing 17, facilitates the assembly of the earphone head. For example, the speaker 2 and the isolation cover 14 can be first installed on the end housing 16, the magnetic field generator 31 can be installed on the partition 13, the transparent container 30 can be fixed on the back housing 17, and then the back housing 17 and the end housing 16 can be installed on the main housing 15 to complete the assembly, making installation more convenient. The connection method between the housings can be, for example, a snap-fit ​​connection, a bolt connection, an adhesive connection, or welding. Optionally, the housings can be detachably connected, for example, through snap-fit ​​connections or bolt connections, to facilitate disassembly and maintenance.

[0075] This utility model also proposes a type of over-ear headphone, such as... Figure 13 As shown, it includes the earphone head 51 described in any of the embodiments above.

[0076] The headphones also include a headband 50, which is used to be mounted on the top of the head. The headband 50 has two ends, and the headphones include two earpieces 51, which are respectively connected to the two ends of the headband 50.

[0077] Optionally, the headband 50 is retractable to accommodate different head shapes and allow for comfortable wearing.

[0078] It should be noted that, in the absence of conflict, the various embodiments described herein can be combined with each other to obtain more implementation schemes.

[0079] The above are merely specific embodiments of this utility model. Any improvements made based on the concept of this utility model shall be considered within the scope of protection of this utility model.

Claims

1. An earphone head, characterized in that, The earphone head covers the outside of the ear during use and includes: The housing assembly (1) includes a transparent portion (10); A loudspeaker (2) is disposed within the housing assembly (1); and, The magnetofluid assembly (3) is disposed within the housing assembly (1) and includes a transparent container (30) containing the magnetofluid and a magnetic field generator (31) disposed opposite to the transparent container (30). The magnetic field generator (31) is used to generate a magnetic field that drives the movement of the magnetofluid. The transparent container (30) is located between the transparent part (10) and the magnetic field generator (31).

2. The earphone head as described in claim 1, characterized in that, The housing assembly (1) includes a first cavity (11), a second cavity (12), and a partition (13) separating the first cavity (11) and the second cavity (12). The speaker (2) is located in the first cavity (11), and the transparent container (30) is located in the second cavity (12). When the earphone is worn, the second cavity (12) is further away from the human head than the first cavity (11).

3. The earphone head as described in claim 2, characterized in that, The partition (13) has a mounting hole (130), and the magnetic field generator (31) is at least partially located in the mounting hole (130).

4. The earphone head as described in claim 3, characterized in that, It also includes a circuit board (4) disposed in the first cavity (11), the magnetic field generator (31) includes a coil, the lead of the coil is disposed on the side close to the first cavity (11), the speaker (2) and the magnetic field generator (31) are both electrically connected to the circuit board (4), the circuit board (4) is provided with a power amplifier, the electrical signal is simultaneously input to the speaker (2) and the magnetic field generator (31), and the electrical signal input to the magnetic field generator (31) is first amplified by the power amplifier.

5. The earphone head as described in claim 1, characterized in that, The housing assembly (1) further includes an isolation cover (14) covering the outside of the speaker (2), the isolation cover (14) separating the speaker (2) from the magnetohydrodynamic assembly (3).

6. The earphone head as described in claim 5, characterized in that, The isolation cover (14) has a plate portion (141) located between the speaker (2) and the magnetohydrodynamic assembly (3); At least the plate portion (141) is made of a magnetically conductive material; or, At least the plate portion (141) is provided with a magnetic shielding layer.

7. The earphone head as described in claim 1, characterized in that, The housing assembly (1) includes a main housing (15), an end housing (16), and a back housing (17). The main housing (15) includes a partition (13) and a first annular portion (151) and a second annular portion (152) extending from both sides of the partition (13). The end housing (16) is connected to the open end of the first annular portion (151), and the back housing (17) is connected to the open end of the second annular portion (152). The back housing (17) is provided with the transparent portion (10). A first cavity (11) is formed between the end housing (16), the partition (13), and the first annular portion (151), and a second cavity (12) is formed between the back housing (17), the partition (13), and the second annular portion (152).

8. The earphone head as described in claim 7, characterized in that, The first annular portion (151) includes a second portion (1511) and a first portion (1510) connected between the second portion (1511) and the partition (13). The inner and outer contours of the longitudinal section of the first portion (1510) are concave arcs, and its cross-sectional area gradually increases toward the side where the second portion (1511) is located. The inner and outer contours of the longitudinal section of the second portion (1511) are straight. The earphone head includes a circuit board (4) electrically connected to the magnetic field generator (31) and the speaker (2). The circuit board (4) is located inside the second portion (1511).

9. The earphone head as described in claim 8, characterized in that, It also includes buttons (6) and / or interfaces (7) connected to the circuit board (4) and exposed from the second part (1511).

10. The earphone head as described in claim 7, characterized in that, The speaker (2) is connected to the end housing (16), and the housing assembly (1) further includes an isolation cover (14) covering the outside of the speaker (2). The earphone head includes a circuit board (4) electrically connected to the magnetic field generator (31) and the speaker (2). The isolation cover (14) is biased to one side of the length direction of the cross-section of the first annular portion (151), thereby forming a receiving space for accommodating the circuit board (4).

11. The earphone head as described in claim 7, characterized in that, It also includes an earcup (18) connected to the end housing (16), wherein the earcup (18) covers the outside of the ear when the earphone is worn.

12. The earphone head as described in any one of claims 1 to 11, characterized in that, The transparent container (30) is attached to the transparent part (10).

13. The earphone head as described in claim 12, characterized in that, The outer surface (100) and inner surface (101) of the transparent part (10) are both arc-shaped and protrude outward from the earphone head. The surface of the transparent container (30) that is in contact with the inner surface (101) is adapted to the shape of the inner surface (101).

14. The earphone head as described in claim 13, characterized in that, The surface of the transparent container (30) facing the magnetic field generator (31) is planar and perpendicular to the axis of the magnetic field generator (31).

15. The earphone head as described in any one of claims 1 to 11, characterized in that, The magnetofluid is amplified by the transparent container (30) near the side wall (303) of the transparent part (10) and / or the transparent part (10).

16. A type of over-ear headphone, characterized in that, It includes a headband (5) and earphone heads respectively connected to both ends of the headband (5), the earphone heads being earphone heads as described in any one of claims 1 to 15.

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