Earphone assembly

Abstract

This application provides an earphone assembly. The earphone assembly includes an earphone case and earphones. The earphone case includes a first housing and an earphone case magnet. The first housing has a receiving slot. The earphone case magnet is disposed within the first housing and adjacent to the receiving slot. The earphones include a second housing and a speaker. The second housing has a first cavity, and the speaker is disposed within the first cavity. The speaker includes a speaker magnet, a voice coil, and a diaphragm. The voice coil surrounds the speaker magnet and is located within the magnetic field of the speaker magnet. The diaphragm is connected to the voice coil, and the voice coil can move relative to the speaker magnet to drive the diaphragm to vibrate. When the earphones are received in the receiving slot, the speaker magnet and the earphone case magnet are positioned opposite each other and are magnetically attracted. The earphone assembly provided by this application can solve the technical problems of large size and complex structure of earphones in existing earphone assemblies.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more particularly to a headphone assembly. Background Technology

[0002] With the increasing use of smartphones and other electronic products, headphones have become a necessity for many people. From wired headphones to true wireless Bluetooth headphones, the form factor of headphones has undergone significant innovation, improving the convenience for consumers. By placing wireless Bluetooth headphones in an earphone case, they can be stored and charged. To ensure accurate alignment and efficient charging within the earphone case, magnets are generally used to attract the headphones. Current technology typically requires additional magnets on both the earphone case and the headphones to achieve accurate alignment. This design not only increases the size of the headphones but may also complicate the internal structure, affecting the overall design and user experience. Summary of the Invention

[0003] This application provides an earphone assembly that can solve the technical problems of large size and complex structure of existing earphone assemblies.

[0004] To address the above problems, this application provides an earphone assembly. The earphone assembly includes an earphone case and earphones. The earphone case includes a first housing and an earphone case magnet. The first housing has a receiving slot. The earphone case magnet is disposed within the first housing and adjacent to the receiving slot. The earphones include a second housing and a speaker. The second housing has a first cavity, and the speaker is disposed within the first cavity. The speaker includes a speaker magnet, a voice coil, and a diaphragm. The voice coil is disposed around the speaker magnet and within the magnetic field of the speaker magnet, and the diaphragm is connected to the voice coil. The voice coil is movable relative to the speaker magnet to drive the diaphragm to vibrate. When the earphones are received in the receiving slot, the speaker magnet and the earphone case magnet are disposed opposite each other and are magnetically attracted to each other.

[0005] When the headphones are working, the terminal device transmits the audio signal to the headphone's mainboard wirelessly. The headphone's mainboard processes the audio signal and converts it into an electrical signal. The headphone's mainboard then transmits the electrical signal to the voice coil, causing the voice coil to generate a magnetic field around it. The magnetic field generated by the voice coil interacts with the magnetic field of the speaker magnet, driving the diaphragm to vibrate. The diaphragm drives the gas in the front and rear cavities to vibrate, producing sound, which is then transmitted to the ear.

[0006] In this embodiment, by incorporating a magnet inside the earphone case, and ensuring magnetic attraction between the magnet and the speaker magnet inside the earphone when the earphone is stored in the case, the earphone can be accurately aligned within the case. This improves the convenience and efficiency of earphone storage. Furthermore, it allows for accurate alignment and contact between the earphone's charging terminal and the charging terminal of the earphone case, thereby enhancing charging efficiency. Simultaneously, this embodiment utilizes the magnetic attraction between the speaker magnet inside the earphone and the earphone case magnet to achieve earphone storage and fixation within the case, eliminating the need for additional magnetic components inside the earphone. This simplifies the earphone's structure, reduces its size, and fully utilizes the internal space. In other words, in this embodiment, the speaker magnet inside the earphone not only fulfills the function of the speaker itself but also serves to magnetically attract the earphone case magnet.

[0007] In one possible implementation, the earphone housing magnet includes a first magnet and a second magnet, with the second magnet surrounding the outer periphery of the first magnet. The speaker magnet includes a third magnet and a fourth magnet, with the fourth magnet surrounding the outer periphery of the third magnet, and the inner wall surface of the fourth magnet being spaced apart from the outer wall surface of the third magnet. The voice coil is wound around the outer periphery of the third magnet and located between the third magnet and the fourth magnet. When the earphone is received in the receiving slot, the first magnet and the third magnet are arranged opposite each other and magnetically attracted, and the second magnet and the fourth magnet are arranged opposite each other and magnetically attracted.

[0008] In this embodiment, by setting a third magnet and a fourth magnet on the speaker magnet, with the fourth magnet surrounding the outer periphery of the third magnet, the speaker magnet can generate a stronger and more uniform magnetic field, thereby causing the voice coil to be subjected to a more stable driving force in the magnetic field, thus improving the accuracy and consistency of the sound, and increasing the magnetic attraction between the speaker magnet and the headphone housing magnet, that is, increasing the magnetic attraction between the headphones and the headphone housing.

[0009] Meanwhile, in this embodiment, by correspondingly setting a first magnet and a second magnet on the earphone case magnet, and ensuring that when the earphone is stored in the earphone case, the first magnet and the third magnet are magnetically attracted to each other, and the second magnet and the fourth magnet are magnetically attracted to each other, the magnetic attraction between the earphone case magnet and the speaker magnet can be improved. This can improve the accuracy and efficiency of earphone alignment in the earphone case, and also improve the stability of the earphone stored in the earphone case.

[0010] In one possible implementation, the speaker magnet and the earphone housing magnet are arranged opposite each other along a first direction; the magnetization direction of the third magnet is parallel to the first direction and faces the first magnet; the magnetization direction of the fourth magnet is opposite to the magnetization direction of the third magnet. The magnetization direction of the first magnet is the same as that of the third magnet; the second magnet is annular, and the magnetization direction of the second magnet is radially opposite to that of the second magnet and faces the outer periphery of the second magnet. The radial direction of the second magnet is perpendicular to the first direction.

[0011] In this embodiment, by setting the second magnet to be magnetized in a radially outward direction, the magnetic field lines of the second magnet can be coupled more with the magnetic field lines of the fourth magnet, which can increase the magnetic attraction between the second magnet and the fourth magnet. This can increase the magnetic attraction between the headphone case magnet and the speaker magnet, thereby further improving the accuracy and efficiency of the headphone alignment in the headphone case, and also improving the stability of the headphone stored in the headphone case.

[0012] In one possible implementation, the gap between the first magnet and the third magnet is greater than or equal to the dimension of the first magnet along the first direction, and the gap between the first magnet and the third magnet is greater than or equal to the dimension of the third magnet along the first direction. Similarly, the gap between the second magnet and the fourth magnet is greater than or equal to the dimension of the second magnet along the first direction, and the gap between the second magnet and the fourth magnet is greater than or equal to the dimension of the fourth magnet along the first direction. This ensures sufficient coupling space between the magnetic field of the fourth magnet and the magnetic field of the second magnet, thereby enhancing the magnetic attraction between the fourth magnet and the second magnet.

[0013] In one possible implementation, the speaker magnet and the earphone housing magnet are arranged opposite each other along a first direction. The magnetization directions of the first magnet and the second magnet are both parallel to the first direction, and the magnetization directions of the first magnet and the second magnet are opposite. The magnetization directions of the third magnet and the fourth magnet are both parallel to the first direction, and the magnetization direction of the third magnet is the same as that of the first magnet, while the magnetization direction of the fourth magnet is the same as that of the second magnet.

[0014] In one possible implementation, the outer peripheral surface of the second magnet is flush with the outer peripheral surface of the fourth magnet, and the projection of the fourth magnet along the first direction lies entirely within the projection of the second magnet along the first direction. The projection of the third magnet along the first direction at least partially coincides with the projection of the first magnet along the first direction.

[0015] In this embodiment, by setting the projection of the fourth magnet along the first direction to be completely within the projection of the second magnet along the first direction, the magnetic attraction between the first magnet and the third magnet can be increased; by setting the projection of the third magnet along the first direction to at least partially coincide with the projection of the first magnet along the first direction, the magnetic attraction between the second magnet and the fourth magnet can be increased, thereby increasing the magnetic attraction between the headphone case magnet and the speaker magnet.

[0016] In one possible implementation, both the third magnet and the fourth magnet are annular, with the fourth magnet arranged around the outer periphery of the third magnet. This simplifies the structure of the speaker magnet, thereby simplifying the structure of the headphones and headphone assembly.

[0017] In one possible implementation, the third magnet is a cylinder, and the fourth magnet includes a plurality of sub-magnets arranged around the outer periphery of the third magnet.

[0018] In this embodiment, by setting the fourth magnet as multiple sub-magnets, the processing difficulty of the fourth magnet can be reduced, and the fourth magnet can be more flexibly set around the outer periphery of the second magnet, thereby reducing the manufacturing cost of the headphones and headphone components.

[0019] In one possible implementation, there are two receiving slots, designated as a first receiving slot and a second receiving slot, arranged side-by-side and spaced apart. There are two earphone case magnets, spaced apart, with one magnet adjacent to the first receiving slot and the other adjacent to the second receiving slot. There are two earphones, designated as a first earphone and a second earphone. When the first earphone is received in the first receiving slot, the speaker magnet of the first earphone is magnetically attracted to the earphone case magnet adjacent to the first receiving slot, and the speaker magnet of the second earphone is magnetically attracted to the earphone case magnet adjacent to the second receiving slot.

[0020] In one possible implementation, the earphone case includes a first battery and a first charging terminal. The first battery is disposed within the first housing, and the first charging terminal is fixed to the inner wall of the receiving slot and electrically connected to the first battery. The earphone includes a second battery and a second charging terminal. The second battery is disposed within the second housing and electrically connected to the speaker. The second charging terminal is disposed within the second housing and protrudes from the outer surface of the second housing, and is electrically connected to the second battery.

[0021] When the earphone is housed in the receiving slot, the second charging terminal is in contact with and electrically connected to the first charging terminal, and the power of the first battery can be transferred to the second battery through the first charging terminal and the second charging terminal, thereby charging the earphone.

[0022] In summary, the earphone assembly provided in this application, by incorporating an earphone case magnet within the charging case, allows the earphones to be accurately aligned within the case when stored. This improves the convenience and efficiency of earphone storage. Furthermore, it ensures accurate alignment and contact between the earphone's charging terminal and the charging case's charging terminal, thereby enhancing charging efficiency. Additionally, this application utilizes the magnetic attraction between the earphone's speaker magnet and the charging case magnet to achieve earphone storage and fixation within the case, eliminating the need for additional magnetic components inside the earphones. This simplifies the earphone's structure, reduces its size, and fully utilizes the internal space. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0024] Figure 1 This is a schematic diagram of the headphone assembly provided in this application;

[0025] Figure 2 yes Figure 1 A schematic diagram of the earphone compartment in the earphone assembly;

[0026] Figure 3 yes Figure 1 The diagram shows the structure of the headphone housing magnet in the headphone assembly.

[0027] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 5 yes Figure 1 The diagram shows the structure of the earphones in the earphone assembly.

[0029] Figure 6 yes Figure 4 A partial cross-sectional structural diagram of the earphone shown.

[0030] Figure 7 yes Figure 5 A partial structural diagram of the headphones shown;

[0031] Figure 8 This is a schematic diagram of the structure of an earphone assembly provided in another embodiment of this application;

[0032] Figure 9 yes Figure 1 A schematic diagram of the earphone housing magnet and speaker magnet in the first embodiment of the earphone assembly shown;

[0033] Figure 10 yes Figure 9 The image shows the magnetic field distribution cloud map of the headphone case magnet and speaker magnet;

[0034] Figure 11 yes Figure 1 The diagram shows the structure of the earphone housing magnet and speaker magnet in the second embodiment of the earphone assembly.

[0035] Figure 12 yes Figure 11 The image shows the magnetic field distribution cloud map of the headphone case magnet and speaker magnet;

[0036] Figure 13 This is a schematic diagram of the structure of the speaker magnet in the headphone assembly provided in the second embodiment of this application. Detailed Implementation

[0037] The embodiments of this application are described below with reference to the accompanying drawings.

[0038] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the headphone assembly 1000 provided in this application.

[0039] For ease of description, in this application, the length direction of the headphone assembly 1000 is defined as the X direction, the width direction as the Y direction, and the height direction as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0040] The headphone assembly 1000 includes a charging case 200 and earphones 100. Earphones 100 can be stored within the charging case 200. Earphones 100 are wireless earphones, including but not limited to Bluetooth earphones, infrared earphones, etc. In this embodiment, there is a pair of earphones 100, that is, there are two earphones 100. The two earphones 100 are designated as a first earphone 100a and a second earphone 100b. The first earphone 100a and the second earphone 100b are respectively used to wear on the user's left and right ears. For example, the first earphone 100a is the left earphone 100, used to wear on the user's left ear, and the second earphone 100b is the right earphone 100, used to wear on the user's right ear. Alternatively, the first earphone 100a can also be the right earphone 100, and the second earphone 100b can be the left earphone 100.

[0041] Please see Figure 2 , Figure 2 yes Figure 1A schematic diagram of the earphone housing 200 in the earphone assembly 1000.

[0042] The earphone compartment 200 includes a main body 210, a cover 280, and a hinge (not shown). The hinge connects the main body 210 and the cover 280. The cover 280 can rotate relative to the main body 210 via the hinge, so that the cover 280 can be opened or closed relative to the main body 210.

[0043] The main body 210 includes a first housing 220, a first battery 230, a first motherboard 240, a first charging terminal 250, and an earphone housing magnet 260. In this embodiment, the outline of the first housing 220 is generally rectangular. In other embodiments, the first housing 220 may also be cylindrical or other shapes. The first housing 220 includes a first surface 2201 and a second surface 2202. The first surface 2201 and the second surface 2202 are arranged opposite to each other along the height direction of the earphone assembly 1000, that is, opposite to each other along the Z direction. The first housing 220 is provided with a receiving groove 2203. The opening of the receiving groove 2203 is located on the first surface 2201. The shape of the receiving groove 2203 matches the shape of the earphone 100. That is, the earphone 100 can be received in the receiving groove 2203. Specifically, the receiving groove 2203 includes a first sub-groove 2204 and a second sub-groove 2205. The first sub-groove 2204 is a strip-shaped groove. Specifically, the first sub-slot 2204 can be a rectangular slot or a cylindrical slot. The second sub-slot 2205 is an arc-shaped slot. The second sub-slot 2205 is connected to the first sub-slot 2204 along the Z direction, and the second sub-slot 2205 is connected to the side of the first sub-slot 2204 facing the first surface 2201. The second sub-slot 2205 and the first sub-slot 2204 are interconnected. The second sub-slot 2205 penetrates the first surface 2201, thereby forming an opening in the receiving slot 2203. In this embodiment, along the X direction, the outer periphery of the second sub-slot 2205 protrudes beyond the outer periphery of the first sub-slot 2204 to adapt to the shape of the earphone 100.

[0044] In this embodiment, there are two receiving slots 2203. The two receiving slots 2203 are a first receiving slot 2203a and a second receiving slot 2203b. The first receiving slot 2203a and the second receiving slot 2203b are spaced apart and opposite to each other along the length direction of the earphone 100, that is, they are opposite to each other and spaced apart along the X direction. In this embodiment, the first receiving slot 2203a and the second receiving slot 2203b are mirror-symmetrically arranged. The two receiving slots 2203 are used to receive the first earphone 100a and the second earphone 100b, respectively. For example, the first receiving slot 2203a is used to receive the first earphone 100a, and the second receiving slot 2203b is used to receive the second earphone 100b. When there is only one earphone 100, there can also be only one receiving slot 2203.

[0045] The first housing 220 also includes a receiving cavity (not shown in the figure). The receiving cavity is spaced apart from and sealed from the receiving groove 2203. That is, the receiving cavity and the receiving groove 2203 are not in communication. In this way, external moisture can be prevented from entering the receiving cavity through the receiving groove 2203 and affecting the electronic devices located in the receiving cavity.

[0046] In this embodiment, the first main board 240 is a printed circuit board (PCB). In other embodiments, the first main board 240 may also be a lexible printed circuit (FPC). The first main board 240 is disposed within the receiving cavity.

[0047] The first battery 230 is disposed within the receiving cavity and is electrically connected to the first main board 240. The main body 210 also has a charging port 270. The charging port 270 is electrically connected to the first main board 240 and is exposed through the outer surface of the first housing 220. In this embodiment, the charging port 270 is exposed from the second surface 2202. The charging port 270 is used for electrical connection to an external power source. The external power source charges the first battery 230 through the charging port 270. The first battery 230 is used to store and release electrical energy.

[0048] The first charging terminal 250 is electrically connected to the first motherboard 240 and extends through the inner wall of the receiving cavity into the receiving slot 2203. That is, the first charging terminal 250 is at least partially located within the receiving slot 2203. In this embodiment, there are two first charging terminals 250. Both first charging terminals 250 are electrically connected to the first motherboard 240. One of the first charging terminals 250, namely the first charging terminal 250a, extends into the first receiving slot 2203a. The power of the first battery 230 can be transferred through the first motherboard 240 to the first charging terminal 250a, and then used to charge the first earphone 100a. The other first charging terminal 250, namely the first charging terminal 250b, extends into the second receiving slot 2203b. The power of the first battery 230 can also be transferred through the first motherboard 240 to the first charging terminal 250b, and then used to charge the second earphone 100b.

[0049] Please see Figure 3 and Figure 4 , Figure 3 yes Figure 1 The diagram shows the structure of the earphone housing magnet 260 in the earphone assembly 1000. Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.

[0050] The earphone case magnet 260 includes a first magnet 261 and a second magnet 262. In this embodiment, the first magnet 261 is cylindrical. The first magnet 261 includes a first surface 2611, a second surface 2612, and a first outer wall surface 2613. The first surface 2611 and the second surface 2612 are arranged opposite to each other along the axial direction of the first magnet 261, and the first outer wall surface 2613 connects the first surface 2611 and the second surface 2612.

[0051] The second magnet 262 is cylindrical. Furthermore, the cross-section of the second magnet 262 perpendicular to the axial direction is annular. The second magnet 262 includes a third surface 2621, a fourth surface 2622, a second inner wall surface 2623, and a second outer wall surface 2624. The third surface 2621 and the fourth surface 2622 are arranged opposite to each other along the axial direction of the second magnet 262. The second inner wall surface 2623 and the second outer wall surface 2624 are arranged opposite to each other along the radial direction of the second magnet 262, and both are connected between the third surface 2621 and the fourth surface 2622. The second inner wall surface 2623 faces the interior of the second magnet 262, and the second outer wall surface 2624 faces the exterior of the second magnet 262.

[0052] The second magnet 262 is sleeved on the outer periphery of the first magnet 261. That is, the first magnet 261 is located on the inner periphery of the second magnet 262. In this embodiment, the first surface 2611 and the third surface 2621 have the same orientation, and the first surface 2611 is flush with the second surface 2612. The second surface 2612 and the fourth surface 2622 have the same orientation, and the second surface 2612 is flush with the fourth surface 2622. In this embodiment, the first outer wall surface 2613 and the second inner wall surface 2623 are parallel and in contact. In other embodiments, there may also be a small gap 4125 between the first outer wall surface 2613 and the second inner wall surface 2623.

[0053] Please combine Figure 2 The earphone case magnet 260 is disposed within the first housing 220 and spaced apart from the receiving slot 2203. That is, the earphone case magnet 260 is not located within the receiving slot 2203. The earphone case magnet 260 is used for magnetic connection with the earphone 100. In this embodiment, there are two earphone case magnets 260. The two earphone case magnets 260 are respectively disposed corresponding to the first receiving slot 2203a and the second receiving slot 2203b. For example, the earphone case magnet 260 is located on the side of the first receiving slot 2203a facing away from the second receiving slot 2203b and is used for magnetic connection with the first earphone 100a. The earphone case magnet 260 is located on the side of the second receiving slot 2203b facing away from the first receiving slot 2203a and is used for magnetic connection with the second earphone 100b.

[0054] Please see Figure 5 , Figure 5 yes Figure 1The diagram shows the structure of the earphone 100 in the earphone assembly 1000. It should be noted that... Figure 5 Only a portion of the structure of the headphone 100 is shown.

[0055] In this embodiment, there are two earphones 100. The two earphones 100 are designated as a first earphone 100a and a second earphone 100b. The first earphone 100a and the second earphone 100b are mirror images of each other. For example, the first earphone 100a is the left earphone, worn in the user's left ear; the second earphone 100b is the right earphone, worn in the user's right ear. The following description uses the first earphone 100a as an example.

[0056] The earphone 100 includes a second housing 10, a second battery 20, a second main board 30, and a speaker 40. The second housing 10 includes an extension 11 and an ear inlet 12. The ear inlet 12 is generally hemispherical. The ear inlet 12 has a first cavity 121. The second battery 20, the second main board 30, and the speaker 40 are all disposed within the first cavity 121. The side wall of the ear inlet 12 also has a sound outlet 122. The sound outlet 122 connects the first cavity 121 to the outside. The sound emitted by the speaker 40 can be conducted to the outside of the earphone 100 through the sound outlet 122.

[0057] The extension 11 has a second cavity 111. The extension 11 is connected to one side of the earpiece 12 and extends away from the earpiece 12. The earpiece 12 and the extension 11 can be a single-piece structure to improve the structural stability of the earphone 100. Alternatively, the earpiece 12 and the extension 11 can be separate structures, that is, the earpiece 12 and the extension 11 are two separate parts, and the earpiece 12 and the extension 11 are fixedly connected to each other to reduce the manufacturing difficulty of the second housing 10. In this embodiment, the extension 11 is generally cylindrical, and the shape of the extension 11 matches the shape of the first sub-slot 2204 in the receiving groove 2203. That is, the extension 11 can be received within the first sub-slot 2204.

[0058] The second mainboard 30, the second battery 20, and the speaker 40 are all housed within the first cavity 121. The second mainboard 30 is a printed circuit board or a flexible circuit board. The second battery 20 is located within the receiving cavity and is electrically connected to the second mainboard 30. The second battery 20 provides power to the electronic components within the earphone 100, such as the second mainboard 30 and the speaker 40. The speaker 40 is located within the receiving cavity and is electrically connected to the second mainboard 30. The speaker 40 is used to acquire audio signals such as music and voice.

[0059] The second motherboard 30 integrates a Bluetooth module and a control module. The Bluetooth module is used to establish a wireless connection with the terminal device, enabling signal transmission between the terminal device and the headset 100. The control module processes the signals received by the Bluetooth module and transmits them to the speaker 40. Simultaneously, the control module also manages the power of the second battery 20, allowing it to dynamically adjust power consumption according to the device's operating status, thereby extending its battery life.

[0060] Please see Figure 6 and Figure 7 , Figure 6 yes Figure 4 A partial cross-sectional structural diagram of the earphone 100 shown. Figure 7 yes Figure 5 A partial structural schematic diagram of the earphone 100 shown.

[0061] The loudspeaker 40 includes a loudspeaker magnet 41, a voice coil 42, and a diaphragm 43. The loudspeaker magnet 41 includes a third magnet 411 and a fourth magnet 412. In this embodiment, the third magnet 411 is cylindrical. Furthermore, the cross-section of the third magnet 411 perpendicular to the axial direction is annular. The third magnet 411 includes a fifth surface 4111, a sixth surface 4112, a third inner wall surface 4113, and a third outer wall surface 4114. The fifth surface 4111 and the sixth surface 4112 are arranged opposite to each other along the axial direction of the third magnet 411. The third inner wall surface 4113 and the third outer wall surface 4114 are arranged opposite to each other along the radial direction of the third magnet 411, and are both connected between the fifth surface 4111 and the sixth surface 4112. A hollow portion 4115 is formed in the middle of the third magnet 411. The hollow portion 4115 penetrates the fifth surface 4111 and the sixth surface 4112. The third inner wall surface 4113 faces the hollow part 4115, and the third outer wall surface 4114 faces the outside of the third magnet 411.

[0062] The fourth magnet 412 is cylindrical. Furthermore, the fourth magnet 412 has a ring-shaped cross-section perpendicular to the axial direction. The fourth magnet 412 includes a seventh surface 4121, an eighth surface 4122, a fourth inner wall surface 4123, and a fourth outer wall surface 4124. The seventh surface 4121 and the eighth surface 4122 are arranged opposite to each other along the axial direction of the fourth magnet 412. The fourth inner wall surface 4123 is arranged opposite to each other along the radial direction of the fourth magnet 412, and both are connected between the seventh surface 4121 and the eighth surface 4122. The fourth inner wall surface 4123 faces the interior of the fourth magnet 412, and the fourth outer wall surface 4124 faces the exterior of the fourth magnet 412.

[0063] In this embodiment, the inner diameter of the fourth magnet 412 is smaller than the outer diameter of the third magnet 411. The fourth magnet 412 is fitted around the outer periphery of the third magnet 411 and is spaced apart from the third magnet 411, forming a gap 4125 between the third magnet 411 and the fourth magnet 412. That is, the third outer wall surface 4114 and the fourth inner wall surface 4123 are radially spaced and opposite to each other along the third magnet 411. In this embodiment, the height of the fourth magnet 412 is the same as the height of the third magnet 411. The fifth surface 4111 and the seventh surface 4121 face the same direction and are flush with each other. The sixth surface 4112 and the eighth surface 4122 face the same direction and are flush with each other.

[0064] The voice coil 42 is a wire coil. Specifically, the voice coil 42 can be made of copper wire or copper-clad aluminum wire. The voice coil 42 is wound around the outer periphery of the third magnet 411. Specifically, the voice coil 42 is disposed around the third outer wall surface 4114 and is located between the third magnet 411 and the fourth magnet 412. Furthermore, the voice coil 42 is electrically connected to the second main board 30. Electrical signals from the second main board 30 can be transmitted to the voice coil 42.

[0065] Please continue reading. Figure 6 The diaphragm 43 is located between the speaker magnet 41 and the sound outlet 122, and is spaced apart from both. That is, the diaphragm 43 is located on the side of the speaker magnet 41 closest to the sound outlet 122. The diaphragm 43 is connected to the extension 11. That is, the diaphragm 43 is connected to the inner wall surface of the first cavity 121. The diaphragm 43 divides the first cavity 121 into two parts to form the front cavity and rear cavity of the speaker 40.

[0066] When the earphone 100 is working, the terminal device transmits the audio signal to the second motherboard 30 wirelessly. The second motherboard 30 processes the audio signal and converts it into an electrical signal. The second motherboard 30 then transmits the electrical signal to the voice coil 42, causing the voice coil 42 to generate a magnetic field around itself. The magnetic field generated by the voice coil 42 interacts with the magnetic field of the speaker magnet 41, causing the diaphragm 43 to vibrate. The diaphragm 43 causes the gas in the front and rear cavities to vibrate, generating sound, which is then transmitted to the ear through the sound outlet 122.

[0067] Please see Figure 5 The earphone 100 also includes a second charging terminal 50. The second charging terminal 50 is located in the extension 11 and protrudes from the exterior of the earphone 100. The second charging terminal 50 is electrically connected to the second main board 30 and the second battery 20. When the earphone 100 is installed in the earphone compartment 200, the second charging terminal 50 contacts the first charging terminal 250. The charge from the first battery 230 is transferred through the first charging terminal 250 to the second charging terminal 50, and then to the second battery 20, thereby charging the second battery 20.

[0068] In one embodiment, the second housing 10 does not include the extension 11. In this case, the second charging terminal 50 can be directly provided in the earpiece 12 and spaced apart from the sound outlet 122.

[0069] like Figure 1 As shown, when the first earphone 100a is housed in the first receiving slot 2203a, the extension 11 of the first earphone 100a is located within the first sub-slot 2204, and the ear-in portion 12 of the first earphone 100a is partially located within the second sub-slot 2205, with a portion protruding from the second sub-slot 2205. The second charging terminal 50a of the first earphone 100a is in contact with the first charging terminal 250a located at the bottom of the first sub-slot 2204. The charge of the first battery 230 can be transferred through the first charging terminal 250a to the second charging terminal 50a of the first earphone 100a, thereby charging the second battery 20 of the first earphone 100a.

[0070] When the first earphone 100a is housed in the first receiving slot 2203a, the speaker magnet 41 and the earphone case magnet 260 are positioned opposite each other and spaced apart along a first direction. This first direction is parallel or approximately parallel to the axial directions of the speaker magnet 41 and the earphone case magnet 260. In this embodiment, the axial directions of both the earphone case magnet 260 and the speaker magnet 41 are parallel to the X-direction. That is, the first direction is parallel to the X-direction. At this time, the first surface 2611, the second surface 2612, the third surface 2621, and the fourth surface 2622 of the earphone case magnet 260 are all parallel to the YZ plane, and the fifth surface 4111, the sixth surface 4112, the seventh surface 4121, and the eighth surface 4122 of the speaker magnet 41 are all parallel to the YZ plane.

[0071] Please see Figure 8 In another embodiment, the earphone case magnet and the speaker magnet 41 can also be arranged parallel to each other and spaced apart along the Z direction, that is, the axial direction of both the earphone case magnet 260 and the speaker magnet 41 is parallel to the Z direction. In other words, the first direction is parallel to the Z direction. Alternatively, in other embodiments, the axial directions of the earphone case magnet 260 and the speaker magnet 41 can also intersect with the X direction or the Z direction. That is, the first direction can intersect with either the X or Z direction. This application does not impose specific restrictions on the arrangement direction of the earphone case magnet 260 and the speaker magnet 41, as long as the speaker magnet 41 can be magnetically attracted to the earphone case magnet 260.

[0072] When the first earphone 100a is removed from the first receiving slot 2203a, the first earphone 100a can transmit signals with the terminal device. The terminal device transmits an audio signal to the first earphone 100a, the first earphone 100a receives the signal and converts it into an electrical signal. This electrical signal is transmitted to the speaker 40 of the first earphone 100a, where it is converted into a vibration signal under the action of the speaker 40, generating sound, which is then transmitted to the human ear.

[0073] When the second earphone 100b is housed in the second receiving slot 2203b, the extension 11 of the second earphone 100b is located within the first sub-slot 2204, and the ear-in portion 12 of the second earphone 100b is located within the second sub-slot 2205 of the second receiving slot 2203b, partially exposing the second sub-slot 2205. The second charging terminal 50b of the second earphone 100b is in contact with the first charging terminal 250b. The power of the first battery 230 can be transferred through the first charging terminal 250b to the second charging terminal 50b of the second earphone 100b, thereby charging the second battery 20 of the second earphone 100b.

[0074] When the second earphone 100b is removed from the second receiving slot 2203b, it can transmit signals with the terminal device. The terminal device transmits an audio signal to the second earphone 100b, which receives the signal and converts it into an electrical signal. This electrical signal is transmitted to the speaker 40 of the second earphone 100b, where it is converted into a vibration signal and generates sound, which is then transmitted to the ear.

[0075] Furthermore, when the first earphone 100a is stored in the first receiving slot 2203a, the speaker magnet 41 of the speaker 40 inside the first earphone 100a is magnetically attracted to the earphone case magnet 260. When the second earphone 100b is stored in the second receiving slot 2203b, the speaker magnet 41 of the speaker 40 inside the second earphone 100b is magnetically attracted to the earphone case magnet 260.

[0076] In this embodiment, by providing an earphone case magnet 260 inside the earphone case 200, and when the earphone 100 is stored in the earphone case 200, the earphone case magnet 260 and the speaker magnet 41 of the speaker 40 inside the earphone 100 are magnetically attracted to each other, allowing the earphone 100 to be accurately aligned inside the earphone case 200. This improves the convenience and efficiency of storing the earphone 100. Furthermore, it also ensures that the second charging terminal 50 of the earphone 100 and the second charging terminal 50 of the earphone case 200 are accurately aligned and in contact, thereby improving the charging efficiency of the earphone 100. Simultaneously, in this embodiment, by utilizing the magnetic attraction between the speaker magnet 41 of the speaker 40 inside the earphone 100 and the earphone case magnet 260, the earphone 100 can be stored and secured inside the earphone case 200 without the need for additional magnetic components inside the earphone 100. This simplifies the structure of the earphone 100, reduces its size, and makes full use of the space inside the earphone 100. That is, in this embodiment, the speaker magnet 41 of the speaker 40 inside the earphone 100 can not only fulfill the function of the speaker 40 itself, but also be used to magnetically attract with the earphone case magnet 260.

[0077] The following explanation will take the speaker magnet 41 inside the first earphone 100a and the earphone case magnet 260 that is magnetically attracted to the speaker magnet 41 as an example.

[0078] Please see Figure 9 , Figure 9 yes Figure 1 The diagram shows the structure of the earphone housing magnet 260 and speaker magnet 41 in the first embodiment of the earphone assembly 1000. It should be noted that... Figure 9 The arrows in the diagram indicate the direction of magnetization.

[0079] In this embodiment, the magnetization direction of the third magnet 411 is parallel or approximately parallel to its axial direction; that is, the third magnet 411 is magnetized along its axial direction. The third magnet 411 has a first magnetic pole 401 and a second magnetic pole 402. The portion of the third magnet 411 near the fifth surface 4111 is the first magnetic pole 401, and the portion of the third magnet 411 near the sixth surface 4112 is the second magnetic pole 402. The polarity of the first magnetic pole 401 is opposite to that of the second magnetic pole 402.

[0080] The magnetization direction of the fourth magnet 412 is parallel or approximately parallel to its axial direction; that is, the fourth magnet 412 is magnetized along its axial direction. The magnetization direction of the fourth magnet 412 is opposite to that of the third magnet 411. The fourth magnet 412 has a third magnetic pole 403 and a fourth magnetic pole 404. The portion of the fourth magnet 412 near the seventh surface 4121 is the third magnetic pole 403, and the portion of the fourth magnet 412 near the eighth surface 4122 is the fourth magnetic pole 404. The polarity of the third magnetic pole 403 is opposite to that of the fourth magnetic pole 404.

[0081] The magnetization direction of the first magnet 261 is parallel or approximately parallel to its axial direction; that is, the first magnet 261 is magnetized along its axial direction. The magnetization direction of the first magnet 261 is the same as that of the third magnet 411. The first magnet 261 has a fifth magnetic pole 201 and a sixth magnetic pole 202. The portion of the first magnet 261 near the first surface 2611 is the fifth magnetic pole 201, and the portion of the first magnet 261 near the second surface 2612 is the sixth magnetic pole 202. The polarity of the fifth magnetic pole 201 is opposite to that of the sixth magnetic pole 202, and the polarity of the fifth magnetic pole 201 is also opposite to that of the second magnetic pole 402.

[0082] The magnetization direction of the second magnet 262 is parallel or approximately parallel to its axial direction; that is, the second magnet 262 is magnetized along its axial direction. The magnetization direction of the second magnet 262 is opposite to that of the first magnet 261. It can be understood that the magnetization direction of the second magnet 262 is the same as that of the fourth magnet 412. The second magnet 262 has a seventh magnetic pole 203 and an eighth magnetic pole 204. The portion of the second magnet 262 near the third surface 2621 is the seventh magnetic pole 203, and the portion near the fourth surface 2622 is the eighth magnetic pole 204. The polarity of the seventh magnetic pole 203 is opposite to that of the eighth magnetic pole 204, and also opposite to that of the fourth magnetic pole 404.

[0083] In this embodiment, the magnetization direction of the third magnet 411 is from the fifth surface 4111 to the sixth surface 4112, with the first magnetic pole 401 being the south pole and the second magnetic pole 402 being the north pole. The magnetization direction of the fourth magnet 412 is from the eighth surface 4122 to the seventh surface 4121, with the third magnetic pole 403 being the north pole and the fourth magnetic pole 404 being the south pole. The magnetization direction of the first magnet 261 is from the first surface 2611 to the second surface 2612, with the fifth magnetic pole 201 being the south pole and the sixth magnetic pole 202 being the north pole. The magnetization direction of the fourth magnetic pole 404 is from the fourth surface 2622 to the third surface 2621, with the seventh magnetic pole 203 being the north pole and the eighth magnetic pole 204 being the south pole.

[0084] In one embodiment, the magnetization direction of the third magnet 411 can also be from the sixth surface 4112 to the fifth surface 4111, in which case the first magnetic pole 401 is the north pole and the second magnetic pole 402 is the south pole. The magnetization direction of the fourth magnet 412 is from the seventh surface 4121 to the eighth surface 4122, with the third magnetic pole 403 being the south pole and the second magnetic pole 402 being the north pole. The magnetization direction of the first magnet 261 is from the second surface 2612 to the first surface 2611, with the fifth magnetic pole 201 being the north pole and the sixth magnetic pole 202 being the south pole. The magnetization direction of the fourth magnetic pole 404 is from the third surface 2621 to the fourth surface 2622, with the seventh magnetic pole 203 being the south pole and the eighth magnetic pole 204 being the north pole.

[0085] When the earphone 100 is stored in the earphone case 200, the earphone case magnet 260 and the speaker magnet 41 are arranged opposite to each other and parallel along their axial directions. The third magnet 411 and the first magnet 261 are arranged opposite to each other along the axial direction of the third magnet 411, and the sixth surface 4112 is arranged opposite to the first surface 2611. Along the axial direction of the third magnet 411, the projection of the third magnet 411 at least partially coincides with the projection of the first magnet 261 to enhance the magnetic attraction between the third magnet 411 and the first magnet 261. More preferably, the third magnet 411 and the first magnet 261 are coaxially arranged, that is, the axis of the third magnet 411 coincides with the axis of the first magnet 261. Alternatively, the axis of the third magnet 411 and the axis of the first magnet 261 may also approximately coincide.

[0086] The fourth magnet 412 and the second magnet 262 are arranged opposite each other along the axial direction of the fourth magnet 412, and the eighth surface 4122 is arranged opposite to the third surface 2621. Along the axial direction of the fourth magnet 412, the projection of the fourth magnet 412 at least partially coincides with the projection of the second magnet 262 to enhance the magnetic attraction between the fourth magnet 412 and the second magnet 262. More preferably, the fourth magnet 412 and the second magnet 262 are coaxially arranged, that is, the axis of the fourth magnet 412 coincides with the axis of the second magnet 262. Alternatively, the axis of the fourth magnet 412 and the axis of the second magnet 262 may also substantially coincide. In this embodiment, the outer diameter of the fourth magnet 412 is the same as or substantially the same as the outer diameter of the second magnet 262, and when the earphone 100 is stored in the earphone compartment 200, the outer wall surface of the fourth magnet 412 is flush with the outer wall surface of the second magnet 262. That is, the fourth outer wall surface 4124 is flush with the second outer wall surface 2624. Furthermore, the orthographic projection of the fourth magnet 412 along the X direction lies entirely within the orthographic projection of the third magnet 411 along the X direction. In other embodiments, the outer diameter of the fourth magnet 412 may be slightly larger or slightly smaller than the outer diameter of the second magnet 262.

[0087] Please combine Figure 10 , Figure 10 yes Figure 9 The magnetic field distribution cloud map of the headphone compartment magnet 260 and speaker magnet 41 is shown.

[0088] In this embodiment, the magnetic field lines of the third magnet 411 originate from the first magnetic pole 401 and point towards the second magnetic pole 402. Some magnetic field lines pass through the hollow portion 4115 and return to the first magnetic pole 401, while others diverge from the second magnetic pole 402 toward the first magnet 261. The magnetic field lines of the first magnet 261 originate from the fifth magnetic pole 201 and point towards the sixth magnetic pole 202. Some magnetic field lines pass through the outer periphery of the first magnet 261 and return to the fifth magnetic pole 201, while others enter the second magnet 262 from the sixth magnetic pole 202 via the fourth surface 2622. Still others diverge from the sixth magnetic pole 202 in a direction away from the first magnet 261.

[0089] In this process, the magnetic field lines emanating from the second magnetic pole 402 towards the first magnet 261 in the third magnet 411 couple with the magnetic field lines emanating from the fifth magnetic pole 201 towards the sixth magnetic pole 202 in the first magnet 261, forming a magnetic attraction. This achieves magnetic attraction between the second magnetic pole 402 and the fifth magnetic pole 201, which in turn achieves magnetic attraction between the third magnet 411 and the first magnet 261. Specifically, the second magnetic pole 402 in the third magnet 411 and the fifth magnetic pole 201 in the first magnet 261 are magnetically attracted to each other.

[0090] The magnetic field lines of the fourth magnet 412 originate from the fourth magnetic pole 404 and point towards the third magnetic pole 403. Some magnetic field lines pass through the gap 4125 and return to the fourth magnetic pole 404, some magnetic field lines encircle the outer periphery of the fourth magnet 412 and return to the fourth magnetic pole 404, and some magnetic field lines diverge outward from the third magnetic pole 403. The magnetic field lines of the second magnet 262 originate from the eighth magnetic pole 204 and point towards the seventh magnetic pole 203. Some magnetic field lines pass through the inner periphery of the second magnet 262 and return to the eighth magnetic pole 204, some magnetic field lines enter the first magnet 261 from the seventh magnetic pole 203 via the first surface 2611, some magnetic field lines pass through the outer periphery of the second magnet 262 and return to the eighth magnetic pole 204, and some magnetic field lines diverge from the seventh magnetic pole 203 towards the fourth magnet 412.

[0091] In this embodiment, the magnetic field lines emanating from the seventh magnetic pole 203 towards the fourth magnet 412 in the second magnet 262 couple with the magnetic field lines emanating from the fourth magnetic pole 404 towards the third magnetic pole 403 in the fourth magnet 412, forming a magnetic attraction. This achieves magnetic attraction between the fourth magnetic pole 404 and the seventh magnetic pole 203, and thus magnetic attraction between the second magnet 262 and the fourth magnet 412. In this embodiment, the magnetic field lines of the second magnet 262 and the fourth magnet 412 are mainly coupled in region A.

[0092] For example, when the diameter of the first magnet 261 is 4 mm, the outer diameter of the second magnet 262 is 7 mm, and the distance between the sixth surface 4112 and the first surface 2611 is 6 mm, the magnetic attraction force between the speaker magnet 41 and the headphone housing magnet 260 is 0.4 N.

[0093] In this embodiment, by setting a first magnet 261 and a second magnet 262 on the headphone case magnet 260 respectively, and making the first magnet 261 magnetically attracted to the third magnet 411 in the speaker magnet 41, and the second magnet 262 magnetically attracted to the fourth magnet 412 in the speaker magnet 41, the magnetic attraction between the speaker magnet 41 and the headphone case magnet 260 can be improved. This can improve the accuracy and efficiency of the headphone 100 in the headphone case 200, and also improve the stability of the headphone 100 stored in the headphone case 200.

[0094] Meanwhile, in this embodiment, by setting the speaker magnet 41 as a double ring, that is, by setting the fourth magnet 412 of the speaker magnet 41 around the outer periphery of the third magnet 411, the speaker magnet 41 can generate a stronger and more uniform magnetic field, thereby making the voice coil 42 subject to a more stable driving force in the magnetic field, thereby improving the accuracy and consistency of the sound, and further increasing the magnetic attraction between the speaker magnet 41 and the headphone housing magnet 260, that is, increasing the magnetic attraction between the headphone 100 and the headphone housing 200.

[0095] Please see Figure 11 , Figure 11 yes Figure 1 The diagram shows the structure of the earphone housing magnet 260 and speaker magnet 41 in the second embodiment of the earphone assembly 1000. It should be noted that... Figure 11 The arrows in the diagram indicate the direction of magnetization.

[0096] This implementation method and Figure 9 The difference in the illustrated embodiment lies in that, in this embodiment, the magnetization direction of the second magnet 262 in the earphone case magnet 260 is parallel to the radial direction of the second magnet 262. That is, the second magnet 262 is magnetized radially. It can be understood that the second magnet 262 is magnetized radially. Specifically, the portion of the second magnet 262 along its circumference and near the second outer wall surface 2624 is the seventh magnetic pole 203, and the portion along its circumference and near the second inner wall surface 2623 is the eighth magnetic pole 204. In other words, the outer side of the second magnet 262 is the seventh magnetic pole 203, and the inner side is the eighth magnetic pole 204.

[0097] In this embodiment, the magnetization direction of the second magnet 262 is parallel to its radial direction and extends from the second inner wall surface 2623 to the second outer wall surface 2624. That is, the second magnet 262 is magnetized radially outward. At this time, the seventh magnetic pole 203 is the north pole, and the eighth magnetic pole 204 is the south pole.

[0098] Please combine Figure 12 , Figure 12 yes Figure 11 The magnetic field distribution cloud map of the headphone compartment magnet 260 and speaker magnet 41 is shown.

[0099] In this embodiment, the magnetic field lines of the third magnet 411 originate from the first magnetic pole 401 and point towards the second magnetic pole 402, with some magnetic field lines diverging from the second magnetic pole 402 toward the first magnet 261. The magnetic field lines of the first magnet 261 originate from the fifth magnetic pole 201 and point towards the sixth magnetic pole 202, with some magnetic field lines spreading away from the second surface 2612.

[0100] When the earphone 100 is stored in the earphone case 200, the speaker magnet 41 and the earphone case magnet 260 are positioned opposite each other and parallel. Magnetic field lines emanating from the second magnetic pole 402 towards the first magnet 261 in the third magnet 411 couple with magnetic field lines emanating from the fifth magnetic pole 201 towards the sixth magnetic pole 202 in the first magnet 261, forming a magnetic attraction. This achieves magnetic attraction between the second magnetic pole 402 and the fifth magnetic pole 201, which in turn achieves magnetic attraction between the third magnet 411 and the first magnet 261. Specifically, the second magnetic pole 402 in the third magnet 411 is magnetically attracted to the fifth magnetic pole 201 in the first magnet 261.

[0101] In this embodiment, by configuring the second magnet 262 to be magnetically magnetized radially, the number of magnetic field lines of the first magnet 261 acting on the magnetic field lines of the second magnet 262 can be reduced, allowing more magnetic field lines of the first magnet 261 to couple with the magnetic field lines of the third magnet 411. That is, in this embodiment, by configuring the second magnet 262 to be magnetically magnetized radially, the magnetic attraction between the first magnet 261 and the second magnet 262 can be reduced, while the magnetic attraction between the third magnet 411 and the first magnet 261 can be increased. This improves the accuracy and efficiency of the earphone 100's alignment within the earphone case 200, and also enhances the stability of the earphone 100 when stored in the earphone case 200.

[0102] Please continue reading. Figure 12In this embodiment, the magnetic field lines of the fourth magnet 412 originate from the fourth magnetic pole 404 and point towards the third magnetic pole 403. A portion of the magnetic field lines encircle the outer periphery of the fourth magnet 412 and return to the fourth magnetic pole 404. The magnetic field lines of the second magnet 262 originate from the eighth magnetic pole 204 and point towards the seventh magnetic pole 203, then diffuse outwards from the seventh magnetic pole 203. A portion of the magnetic field lines extend from the seventh magnetic pole 203 into the gap 4125 between the second magnetic pole 402 and the fourth magnetic pole 404, and then return to the seventh magnetic pole 203.

[0103] In the second magnet 262, the magnetic field lines extending from the seventh magnetic pole 203 toward the gap 4125 between the second magnetic pole 402 and the fourth magnetic pole 404 are coupled with the magnetic field lines of the second magnetic pole 402 surrounding the outer periphery of the fourth magnet 412, forming a magnetic attraction force. Figure 12 Within region B, the magnetic field lines of the second magnet 262 couple with the magnetic field lines of the fourth magnet 412 that are in the same direction. This allows for magnetic attraction between the fourth magnetic pole 404 and the seventh magnetic pole 203, and also achieves magnetic attraction between the second magnet 262 and the fourth magnet 412.

[0104] For example, when the diameter of the first magnet 261 is 4 mm, the outer diameter of the second magnet 262 is 7 mm, and the distance between the sixth surface 4112 and the first surface 2611 is 6 mm, the magnetic attraction force between the speaker magnet 41 and the headphone housing magnet 260 is 1.45 N.

[0105] In this embodiment, by configuring the second magnet 262 to be magnetically charged radially, the number of magnetic field lines from the second magnet 262 that interact with the magnetic field lines from the first magnet 261 can be reduced, allowing more magnetic field lines from the second magnet 262 to couple with the magnetic field lines from the fourth magnet 412. It is understood that in this embodiment, the magnetic field line density in region B is greater than... Figure 10 The magnetic field density in region A is such that, in this embodiment, the magnetic attraction between the second magnet 262 and the fourth magnet 412 is greater than... Figure 10 The magnetic attraction between the second magnet 262 and the fourth magnet 412 in the illustrated embodiment.

[0106] In other words, in this embodiment, by setting the second magnet 262 to be magnetically charged radially, the magnetic attraction between the second magnet 262 and the fourth magnet 412 can be increased, thereby further increasing the magnetic attraction between the speaker magnet 41 and the headphone case magnet 260, which can further improve the accuracy and efficiency of the headphone 100 in the headphone case 200, and improve the stability of the headphone 100 stored in the headphone case 200.

[0107] Please continue reading. Figure 11 and Figure 12In this embodiment, the distance between the speaker magnet 41 and the earphone housing magnet 260 is greater than the thickness of both the speaker magnet 41 and the earphone housing magnet 260. That is, the distance between the earphone housing magnet 260 and the speaker magnet 41 is greater than not only the thickness of the speaker magnet 41 but also the thickness of the earphone housing magnet 260. This ensures sufficient coupling space between the magnetic field of the second magnet 262 and the magnetic field of the fourth magnet 412, thereby enhancing the magnetic attraction between the second magnet 262 and the fourth magnet 412.

[0108] It should be noted that in this application, the magnetization direction of the earphone case magnet 260 and the speaker magnet 41 can be adjusted according to the distance between them to ensure sufficient magnetic attraction. Specifically, when the distance between the earphone case magnet 260 and the speaker magnet 41 is less than the thickness of the earphone case magnet 260 or less than the thickness of the speaker magnet 41, the magnetization direction of both the earphone case magnet 260 and the speaker magnet 41 is axial magnetization, that is, the magnetization direction of the earphone case magnet 260 and the speaker magnet 41 is axial. Figure 9 and Figure 10 In the illustrated embodiment, the magnetization direction is the same. When the distance between the earphone case magnet 260 and the speaker magnet 41 is greater than the thickness of the earphone case magnet 260 and the speaker magnet 41, the magnetization direction of the speaker magnet 41 is axial, the magnetization direction of the first magnet 261 of the earphone case magnet 260 is axial, and the magnetization direction of the second magnet 262 is radially outward. That is, the magnetization directions of the earphone case magnet 260 and the speaker magnet 41 are the same as... Figure 11 and Figure 12 The magnetization direction is the same in the embodiments shown.

[0109] Please see Figure 13 , Figure 13 This is a schematic diagram of the structure of the speaker magnet 41 in the headphone assembly 1000 provided in the second embodiment of this application.

[0110] This embodiment and Figure 7 The difference in the illustrated embodiment is that, in this embodiment, the third magnet 411 in the speaker magnet 41 is a cylinder. The fourth magnet 412 includes a plurality of sub-magnets 4126. The plurality of sub-magnets 4126 are arranged at intervals around the outer periphery of the third magnet 411.

[0111] Specifically, in this embodiment, the third magnet 411 is a cuboid. The third magnet 411 includes a fifth surface 4111, a sixth surface 4112, and a third outer wall surface 4114. The fifth surface 4111 and the sixth surface 4112 are arranged opposite to each other along the height direction of the third magnet 411. The third outer wall surface 4114 includes a first side surface 4114a, a second side surface 4114b, a third side surface 4114c, and a fourth side surface 4114d. The first side surface 4114a and the second side surface 4114b are arranged opposite to each other along the length direction of the third magnet 411 and are connected between the fifth surface 4111 and the sixth surface 4112. The third side surface 4114c and the fourth side surface 4114d are arranged opposite to each other along the width direction of the third magnet 411 and are connected between the fifth surface 4111 and the sixth surface 4112, as well as between the first side surface 4114a and the second side surface 4114b.

[0112] The fourth magnet 412 includes four sub-magnets 4126. The four sub-magnets 4126 are designated as a first sub-magnet 4126a, a second sub-magnet 4126b, a third sub-magnet 4126c, and a fourth sub-magnet 4126d. The first sub-magnet 4126a and the second sub-magnet 4126b are located on opposite sides of the third magnet 411 in the width direction, and are spaced apart from the third magnet 411. The first sub-magnet 4126a is located on the side of the third magnet 411 closest to the first side surface 4114a, and the second sub-magnet 4126b is located on the side of the third magnet 411 closest to the second side surface 4114b. The third sub-magnet 4126c and the fourth sub-magnet 4126d are located on opposite sides of the third magnet 411 in the length direction, and are spaced apart from the third magnet 411. The third sub-magnet 4126c is disposed on the side of the third magnet 411 near the third side surface 4114c, and the fourth sub-magnet 4126d is disposed on the side of the third magnet 411 near the fourth side surface 4114d. That is, the first sub-magnet 4126a, the third sub-magnet 4126c, the second sub-magnet 4126b, and the fourth sub-magnet 4126d are arranged sequentially and at intervals around the outer periphery of the third magnet 411, and are spaced apart from the third magnet 411. A gap 4125 is formed between the fourth magnet 412 and the third magnet 411.

[0113] In this embodiment, the first sub-magnet 4126a, the second sub-magnet 4126b, the third sub-magnet 4126c, and the fourth sub-magnet 4126d are all cuboids. The lengths of the first sub-magnet 4126a and the second sub-magnet 4126b are the same as or approximately the same as the length of the third magnet 411. Along the length direction of the third magnet 411, the first sub-magnet 4126a and the second sub-magnet 4126b are flush with or approximately flush with the third magnet 411. The lengths of the third sub-magnet 4126c and the fourth sub-magnet 4126d are the same as or approximately the same as the width of the third magnet 411. Along the width direction of the third magnet 411, the third sub-magnet 4126c and the fourth sub-magnet 4126d are flush with or approximately flush with the third magnet 411.

[0114] In one embodiment, the third magnet 411 may also be a cylinder, and the sub-magnet 4126 of the fourth magnet 412 may be an arc-shaped cylinder. An "arc-shaped cylinder" refers to a cylinder with an arc-shaped base. It is understood that the fifth surface 4111 and the sixth surface 4112 are curved surfaces. The number of sub-magnets 4126 may be two, three, or four or more.

[0115] In one embodiment, the third magnet 411 can also be a pentagonal prism, that is, the fifth surface 4111 and the sixth surface 4112 are pentagonal. In this case, the fourth magnet 412 has five sub-magnets 4126. The five sub-magnets 4126 are respectively opposite to and spaced apart from the five sides of the third magnet 411.

[0116] In other embodiments, the third magnet 411 may also be a triangular prism, a hexagonal prism, or other polygonal or irregularly shaped prism. The number and shape of the sub-magnets 4126 in the fourth magnet 412 can be adjusted according to the shape of the third magnet 411, as long as the multiple sub-magnets 4126 of the fourth magnet 412 are arranged at intervals around the outer periphery of the third magnet 411.

[0117] In this embodiment, the magnetization directions of the third magnet 411 and the fourth magnet 412 can be referred to Figure 9 and Figure 11 The illustrated embodiment is described in detail here and will not be repeated. It should be noted that the magnetization directions of the multiple sub-magnets 4126 in the fourth magnet 412 are all the same. For example, when the magnetization direction of the fourth magnet 412 is from the seventh surface 4121 to the eighth surface 4122, then the magnetization directions of the first sub-magnet 4126a, the second sub-magnet 4126b, the third sub-magnet 4126c, and the fourth sub-magnet 4126d are all from the seventh surface 4121 to the eighth surface 4122.

[0118] In this embodiment, by setting the fourth magnet 412 as multiple sub-magnets 4126, the processing difficulty of the fourth magnet 412 can be reduced, and the fourth magnet 412 can be more flexibly arranged around the outer periphery of the third magnet 411, thereby reducing the manufacturing cost of the earphone 100 and the earphone assembly 1000.

[0119] In one embodiment, the earphone case magnet 260 may also be an iron-cobalt-nickel or other magnetizable metal structure.

[0120] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An earphone assembly, characterized in that, include: Earphone case and earphones; The earphone case includes a first housing and an earphone case magnet; The first housing is provided with a receiving slot; the earphone compartment magnet is disposed inside the first housing and is arranged adjacent to the receiving slot; The headphones include a second housing and a speaker. The second housing has a first cavity, and the speaker is disposed in the first cavity. The speaker includes a speaker magnet, a voice coil, and a diaphragm. The voice coil is arranged around the speaker magnet and is located within the magnetic field of the speaker magnet. The diaphragm is connected to the voice coil, and the voice coil can move relative to the speaker magnet to drive the diaphragm to vibrate. When the earphone is housed in the receiving slot, the speaker magnet and the earphone housing magnet are positioned opposite each other and are magnetically attracted to each other.

2. The headphone assembly according to claim 1, characterized in that, The earphone case magnet includes a first magnet and a second magnet, with the second magnet arranged around the outer periphery of the first magnet; The loudspeaker magnet includes a third magnet and a fourth magnet. The fourth magnet is arranged around the outer periphery of the third magnet, and the inner wall surface of the fourth magnet is spaced apart from the outer wall surface of the third magnet. The voice coil is wound around the outer periphery of the third magnet and located between the third magnet and the fourth magnet. When the earphone is housed in the receiving slot, the first magnet and the third magnet are arranged opposite each other and are magnetically attracted to each other, and the second magnet and the fourth magnet are arranged opposite each other and are magnetically attracted to each other.

3. The headphone assembly according to claim 2, characterized in that, The speaker magnet and the earphone housing magnet are arranged opposite each other along a first direction; the magnetization direction of the third magnet is parallel to the first direction and faces the first magnet; the magnetization direction of the fourth magnet is opposite to the magnetization direction of the third magnet. The magnetization direction of the first magnet is the same as that of the third magnet; the second magnet is annular, and the magnetization direction of the second magnet is radial to the outer periphery of the second magnet; The radial direction of the second magnet is perpendicular to the first direction.

4. The headphone assembly according to claim 3, characterized in that, The gap between the first magnet and the third magnet is greater than or equal to the dimension of the first magnet along the first direction, and the gap between the first magnet and the third magnet is greater than or equal to the dimension of the third magnet along the first direction; The gap between the second magnet and the fourth magnet is greater than or equal to the dimension of the second magnet along the first direction, and the gap between the second magnet and the fourth magnet is greater than or equal to the dimension of the fourth magnet along the first direction.

5. The headphone assembly according to claim 2, characterized in that, The speaker magnet and the earphone housing magnet are arranged opposite to each other along a first direction. The magnetization direction of the first magnet and the magnetization direction of the second magnet are both parallel to the first direction, and the magnetization direction of the first magnet is opposite to the magnetization direction of the second magnet. The magnetization directions of the third magnet and the fourth magnet are both parallel to the first direction, and the magnetization direction of the third magnet is the same as that of the first magnet, while the magnetization direction of the fourth magnet is the same as that of the second magnet.

6. The headphone assembly according to any one of claims 3 to 5, characterized in that, The outer peripheral surface of the second magnet is flush with the outer peripheral surface of the fourth magnet, and the projection of the fourth magnet along the first direction is completely within the projection of the second magnet along the first direction; the projection of the third magnet along the first direction at least partially coincides with the projection of the first magnet along the first direction.

7. The headphone assembly according to any one of claims 2 to 5, characterized in that, Both the third magnet and the fourth magnet are circular rings, with the fourth magnet arranged around the outer periphery of the third magnet.

8. The headphone assembly according to any one of claims 2 to 5, characterized in that, The third magnet is a cylinder, and the fourth magnet includes multiple sub-magnets arranged around the outer periphery of the third magnet.

9. The headphone assembly according to any one of claims 1 to 5, characterized in that, There are two receiving slots, namely a first receiving slot and a second receiving slot, which are arranged side by side and spaced apart; there are two earphone case magnets, which are arranged spaced apart, with one earphone case magnet adjacent to the first receiving slot and the other earphone case magnet adjacent to the second receiving slot. The earphones are two in number, namely a first earphone and a second earphone. When the first earphone is housed in the first receiving slot, the speaker magnet of the first earphone is magnetically attracted to the earphone housing magnet adjacent to the first receiving slot, and the speaker magnet of the second earphone is magnetically attracted to the earphone housing magnet adjacent to the second receiving slot.

10. The headphone assembly according to claim 2, characterized in that, The earphone case includes a first battery and a first charging terminal. The first battery is disposed inside the first housing, and the first charging terminal is fixed to the inner wall of the receiving slot and electrically connected to the first battery. The earphone includes a second battery and a second charging terminal. The second battery is disposed inside the second housing and is electrically connected to the speaker. The second charging terminal is disposed in the second housing and protrudes from the outer surface of the second housing, and the second charging terminal is electrically connected to the second battery. When the earphone is housed in the receiving slot, the second charging terminal is in contact with and electrically connected to the first charging terminal, and the power of the first battery can be transferred to the second battery through the first charging terminal and the second charging terminal.

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