Earphone assembly

Abstract

The invention discloses an earphone assembly, and belongs to the technical field of electronic products. The disclosed earphone assembly comprises an earphone and a charging box, the charging box comprises an outer shell, an inner shell and a charging elastic piece, the inner shell is arranged in the outer shell, at least part of the inner shell can rotate relative to the outer shell, the inner shell is provided with an earphone containing cavity, and the earphone can be arranged in the earphone containing cavity; the charging elastic piece is connected with the inner shell and comprises an elastic deformation part, the elastic deformation part is located in the earphone containing cavity so as to make contact with a charging column of the earphone, and under the condition that the elastic deformation part makes contact with the charging column, at least part of the inner shell rotates relative to the outer shell. And the elastic deformation part is used for driving the charging elastic sheet to slide relative to the charging column, so that the elastic deformation part and the charging column rub each other.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to an earphone assembly. Background Art

[0002] The earphone assembly usually includes a Bluetooth earphone and a charging box for charging the Bluetooth earphone. During the specific charging process, the user places the Bluetooth earphone into the charging compartment of the charging box, and the charging column on the Bluetooth earphone contacts the charging shrapnel in the charging compartment to charge the Bluetooth earphone.

[0003] However, after using the earphone assembly for a long time, dirt or oxide will be generated on the surface of the charging shrapnel and the surface of the charging column. When too much dirt and oxide accumulate, the charging box may fail to charge the earphones and the earphone communication may be abnormal. That is, the dirt and oxide generated on the surface of the charging shrapnel and the surface of the charging column may easily affect the normal operation of the earphone assembly. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide an earphone assembly that can solve the problem of the earphone assembly involved in the related art that dirt and oxides are easily generated at the electrical connection between the earphone and the charging box.

[0005] The embodiment of the present application provides an earphone assembly, including an earphone and a charging box, wherein the charging box includes an outer shell, an inner shell and a charging spring. The inner shell is arranged in the outer shell, and at least a part of the inner shell can rotate relative to the outer shell, and the inner shell has an earphone accommodating cavity, and the earphone can be arranged in the earphone accommodating cavity; The charging spring is connected to the inner shell, and the charging spring includes an elastic deformation portion, and the elastic deformation portion is located in the earphone accommodating cavity to contact the charging post of the earphone. When the elastic deformation portion contacts the charging post, at least part of the inner shell rotates relative to the outer shell to drive the charging spring to slide relative to the charging post, so that the elastic deformation portion and the charging post rub against each other.

[0006] In the embodiment of the present application, since the inner shell is arranged in the outer shell, and at least a part of the inner shell can move relative to the outer shell, and then the charging spring connected to the inner shell can move accordingly, since the elastic deformation part of the charging spring can contact the charging column of the earphone, therefore, when the elastic deformation part contacts the charging column and at least a part of the inner shell rotates relative to the outer shell, the inner shell can drive the charging spring to slide relative to the charging column, and then the elastic deformation part and the charging column rub and scrape each other, thereby achieving the purpose of automatically cleaning the dirt and oxide on the surface of the charging spring and the surface of the charging column, so as to avoid affecting the normal operation of the earphone assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of a partial cross-sectional structure of an earphone assembly disclosed in an embodiment of the present application; Figure 2 and Figure 3 It is a schematic diagram of a partial cross-sectional structure of the earphone at different viewing angles when the transmission member is not squeezed according to the embodiment of the present application; Figure 4 and Figure 5 It is a schematic diagram of a partial cross-sectional structure of the earphone squeezing a transmission member at different viewing angles disclosed in the embodiment of the present application; Figure 6 A schematic diagram of the structure of the transmission member disclosed in the embodiment of the present application; Figure 7 and Figure 8 Schematic diagram of the structure of the second inner shell at different viewing angles disclosed in the embodiments of the present application; Fig. 9 This is a schematic diagram of the structure of the first inner shell disclosed in the embodiment of the present application; Fig.10 This is a schematic diagram of the structure of the housing disclosed in the embodiment of the present application; Fig.11 It is a schematic diagram of the structure of the elastic reset member disclosed in the embodiment of the present application; Fig.12 A schematic diagram of the structure of the earphone disclosed in the embodiment of the present application; Fig.13 This is a schematic diagram of the structure of the earphone assembly disclosed in an embodiment of the present application.

[0008] Description of reference numerals: 100-housing, 110-guide protrusion, 111-guide groove; 200 - inner shell, 210 - earphone accommodating cavity, 220 - first inner shell, 230 - second inner shell, 231 - guide hole, 232 - second driving protrusion; 300-charging spring, 310-elastic deformation part; 400-earphones, 410-charging column; 500-transmission member, 510-first driving protrusion, 511-guide slope, 520-first end, 530-second end, 540-connecting section; 600 - elastic reset member, 610 - elastic body, 620 - first plug-in fitting portion, 630 - second plug-in fitting portion. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0010] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0011] The earphone assembly disclosed in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0012] Please refer to Figure 1-Figure 13 The present application discloses an earphone assembly, which includes an earphone 400 and a charging box, and the charging box includes an outer shell 100, an inner shell 200 and a charging shrapnel 300.

[0013] The earphone 400 is the main component of the earphone assembly for sound generation. The user can wear the earphone 400, and the earphone 400 can communicate with the user's mobile phone and other electronic devices, so that the sound signal output by the electronic device can be transmitted to the human ear through the earphone 400. When the user is not using the earphone 400, the user can place the earphone 400 in the charging box, and the charging box can charge the earphone 400.

[0014] The outer shell 100 is the basic component of the charging box, which can provide an installation basis for other components of the charging box, such as providing an installation basis for the inner shell 200. The outer shell 100 can protect the inner shell 200 and the charging shrapnel 300, and can also protect the earphones 400 placed in the charging box.

[0015] The inner shell 200 is disposed in the outer shell 100, and at least a portion of the inner shell 200 is rotatably disposed in the outer shell 100, that is, at least a portion of the inner shell 200 can rotate relative to the outer shell 100, and the inner shell 200 has an earphone accommodating cavity 210, and the earphone 400 can be disposed in the earphone accommodating cavity 210, that is, the user can place the earphone 400 in the earphone accommodating cavity 210 when not using the earphone 400.

[0016] The charging spring 300 is connected to the inner shell 200, and the charging spring 300 includes an elastic deformation portion 310. For details, please refer to Figure 4 The elastic deformation part 310 is located in the earphone accommodating cavity 210 to contact the charging column 410 of the earphone 400, that is, the elastic deformation part 310 protrudes from the inner shell 200, and the structure of the charging spring 300 except the elastic deformation part 310 is located outside the inner shell 200, and is electrically connected to the flexible circuit board arranged in the outer shell 100, that is, a flexible circuit board can also be provided in the outer shell 100, and the flexible circuit board can be electrically connected to the charging spring 300. When the charging spring 300 contacts the charging column 410, the flexible circuit board can charge the earphone 400 through the charging spring 300 and the charging column 410.

[0017] Since the charging spring 300 is connected to the inner shell 200, when the elastic deformation part 310 is in contact with the charging column 410, at least part of the inner shell 200 rotates relative to the outer shell 100 to drive the charging spring 300 to slide relative to the charging column 410, so that the elastic deformation part 310 and the charging column 410 rub against each other, that is, the charging spring 300 can move with the inner shell 200, and then the charging spring 300 can slide relative to the charging column 410. At this time, the elastic deformation part 310 and the charging column 410 will rub and scrape each other, so as to achieve the purpose of automatically cleaning the dirt and oxide on the surface of the charging spring 300 and the surface of the charging column 410.

[0018] In the embodiment of the present application, since the inner shell 200 is arranged in the outer shell 100, and at least a portion of the inner shell 200 can move relative to the outer shell 100, and then the charging spring 300 connected to the inner shell 200 can move accordingly, and since the elastic deformation part 310 of the charging spring 300 can contact the charging column 410 of the earphone 400, therefore, when the elastic deformation part 310 contacts the charging column 410 and at least a portion of the inner shell 200 rotates relative to the outer shell 100, the inner shell 200 can drive the charging spring 300 to slide relative to the charging column 410, and then the elastic deformation part 310 and the charging column 410 rub and scrape each other, thereby achieving the purpose of automatically cleaning the dirt and oxide on the surface of the charging spring 300 and the surface of the charging column 410, so as to avoid affecting the normal operation of the earphone assembly.

[0019] Optionally, the inner shell 200 may include a first inner shell 220 and a second inner shell 230, both of which are arranged in the outer shell 100, and the first inner shell 220 is connected to the outer shell 100. Optionally, the first inner shell 220 and the outer shell 100 may be connected by snapping. In the height direction of the charging box, the first inner shell 220 and the second inner shell 230 are arranged in sequence, and the two are connected to form the earphone accommodating cavity 210 together. The charging shrapnel 300 may be specifically connected to the second inner shell 230, and the second inner shell 230 is rotatably connected to the first inner shell 220, that is, the second inner shell 230 can rotate relative to the first inner shell 220 and the outer shell 100 to drive the charging shrapnel 300 to slide relative to the charging column 410. It can be seen that in this embodiment, only the second inner shell 230 can rotate relative to the outer shell 100, and the outer shell 100 needs to reserve a smaller activity space to make the overall size of the charging box smaller. Moreover, the contact area between the second inner shell 230 and the earphone 400 is smaller than the contact area between the entire inner shell 200 and the earphone 400, and the earphone 400 is not easily worn when the second inner shell 230 moves. Of course, in other embodiments, both the first inner shell 220 and the second inner shell 230 can be rotatably connected to the outer shell 100.

[0020] Optionally, the present application may use a motor to drive the second inner shell 230 to rotate.

[0021] In another embodiment, when the elastic deformation portion 310 is in contact with the charging column 410, the earphone 400 is connected to the second inner shell 230 in a transmission manner to drive the second inner shell 230 to rotate relative to the outer shell 100 and the first inner shell 220, that is, in this embodiment, when the earphone 400 is loaded into the earphone receiving cavity 210, the earphone 400 can drive the second inner shell 230 to rotate, so that the second inner shell 230 can drive the charging spring 300 to slide relative to the charging column 410. It can be seen that the embodiment of the present application can achieve the effect of driving the second inner shell 230 to rotate by loading the earphone 400 into the earphone receiving cavity 210, which can reduce the energy consumption of the charging box to a certain extent, and can simplify the structural complexity of driving the second inner shell 230 to rotate.

[0022] Optionally, the earphone 400 can be slidably matched with the second inner shell 230. When the elastic deformation portion 310 is in contact with the charging column 410, the earphone 400 can directly squeeze the second inner shell 230 while sliding relative to the second inner shell 230 to drive the second inner shell 230 to rotate. For example, one of the earphone 400 and the second inner shell 230 can be provided with a convex portion, and the other can be provided with a spiral groove. When the earphone 400 is placed in the earphone accommodating cavity 210, the convex portion and the spiral groove are slidably matched, so that the earphone 400 can directly drive the second inner shell 230 to rotate.

[0023] In another embodiment, the earphone assembly may further include a transmission member 500, which is slidably matched with the second inner shell 230. When the elastic deformation portion 310 is in contact with the charging column 410, the earphone 400 can squeeze the transmission member 500, and the transmission member 500 slides relative to the second inner shell 230 under the squeezing action of the earphone 400, and during the sliding of the transmission member 500, the transmission member 500 can drive the second inner shell 230 to rotate, that is, in the process of the earphone 400 being loaded into the earphone accommodating cavity 210, the earphone 400 can squeeze the transmission member 500 so that the transmission member 500 drives the second inner shell 230 to rotate, which makes the earphone 400 not need to directly slide with the second inner shell 230, which can further reduce the amount of wear on the earphone 400, and there is no need to set a structure for realizing transmission on the earphone 400 (such as the protrusion or spiral groove described above), thereby reducing the structural complexity of the earphone 400.

[0024] Please refer to Figure 2 , Figure 4 and Figure 7 The bottom of the second inner shell 230 may be provided with a guide hole 231, and the transmission member 500 may specifically be slidably matched with the guide hole 231, that is, the guide hole 231 may limit the movement direction of the transmission member 500, so that when the earphone 400 squeezes the transmission member 500, the transmission member 500 may stably slide relative to the second inner shell 230. Optionally, a spiral groove may be provided on the side wall of the guide hole 231, please refer to Figure 6 A first driving protrusion 510 is protruded from the transmission member 500. When the transmission member 500 slides along the extension direction of the guide hole 231, the first driving protrusion 510 can slide in cooperation with the spiral groove, and under the cooperation between the first driving protrusion 510 and the spiral groove, the second inner shell 230 can rotate.

[0025] In another embodiment, please refer to Figures 2 to 5 and Figure 7 , a second driving protrusion 232 is protruded from the second inner shell 230. When the transmission member 500 slides along the extension direction of the guide hole 231, the first driving protrusion 510 can gradually approach the second driving protrusion 232 and squeeze the second driving protrusion 232, thereby driving the second inner shell 230 to rotate. That is, in this embodiment, the side wall of the guide hole 231 does not need to be provided with a spiral groove, so that the transmission member 500 can drive the second inner shell 230 to rotate. This can ensure the structural strength of the guide hole 231, and further ensure the structural strength of the second inner shell 230.

[0026] Optionally, refer to Figure 6, both the first driving protrusion 510 and the second driving protrusion 232 may have a guiding slope 511. In the process of the first driving protrusion 510 squeezing the second driving protrusion 232, the guiding slope 511 of the first driving protrusion 510 and the guiding slope 511 of the second driving protrusion 232 are slidably matched and guided in contact. At this time, the contact area between the two guiding slopes 511 is larger, and the guiding effect is better, so that the first driving protrusion 510 is easier to squeeze the second driving protrusion 232, thereby making the second inner shell 230 rotate more smoothly and stably. Of course, only one of the first driving protrusion 510 and the second driving protrusion 232 can be provided with a guiding slope 511.

[0027] Optionally, refer to Figure 6 The transmission member 500 may include a first end 520, a connecting section 540, and a second end 530 connected in sequence. The first end 520 is located in the earphone receiving cavity 210, and the second end 530 is located outside the second inner shell 230. The connecting section 540 is slidably matched with the guide hole 231. The connecting section 540 may be provided with a first driving protrusion 510, and the first end 520 and the second end 530 are both protruding relative to the outer circumference of the connecting section 540, that is, the cross-sectional area of ​​the first end 520 and the cross-sectional area of ​​the second end 530 are both larger than the cross-sectional area of ​​the connecting section 540, which can prevent the transmission member 500 from completely sliding into or out of the earphone receiving cavity 210, that is, this arrangement can ensure the stability of the transmission member 500, and further ensure the stability of the transmission member 500 driving the second inner shell 230 to rotate. Of course, the first end 520 and the second end 530 may not be protruding relative to the outer circumference of the connecting section 540.

[0028] Optionally, to facilitate the installation of the transmission member 500, at least one of the first end 520 and the second end 530 can be detachably connected to the connecting section 540. During the specific installation process, one end of the connecting section 540 can pass through the guide hole 231 and be connected to the first end 520 or the second end 530.

[0029] Optionally, when the second inner shell 230 drives the charging spring 300 to slide to a position misaligned with the charging column 410, in order to enable the second inner shell 230 to drive the charging spring 300 to reset to a position in contact with the charging column 410, the earphone assembly may further include an elastic reset member 600, one end of which may be connected to the second inner shell 230, and the other end of which may be connected to the outer shell 100. In the process of the transmission member 500 driving the second inner shell 230 to rotate, the elastic reset member 600 may accumulate elastic potential energy, and when the second inner shell 230 stops rotating, the elastic reset member 600 may drive the second inner shell 230 to reset, thereby driving the charging spring 300 to reset.

[0030] It can be seen that this arrangement can make full use of the force applied to the elastic reset member 600 when the second inner shell 230 rotates, so that the elastic reset member 600 drives the second inner shell 230 to reset, which can reduce the energy consumption of the charging box to a certain extent, and at the same time can simplify the structural complexity of driving the second inner shell 230 to reset. Of course, the earphone assembly may not include the elastic reset member 600, that is, in this case, the operation of resetting the second inner shell 230 can be achieved by the driving motor, that is, the driving motor can drive the second inner shell 230 to rotate, so that the second inner shell 230 drives the charging spring 300 to reset to a position in contact with the charging column 410.

[0031] In another embodiment, in order to make full use of the elastic reset member 600, the elastic reset member 600 can be sleeved outside the transmission member 500, and one end of the elastic reset member 600 is connected to the transmission member 500, and the other end of the elastic reset member 600 is connected to the second inner shell 230, that is, the elastic reset member 600 is not connected to the outer shell 100. At this time, the elastic reset member 600 can not only drive the second inner shell 230 to reset, but also drive the transmission member 500 to reset when the transmission member 500 is separated from the earphone 400. This arrangement can improve the utilization rate of the elastic reset member 600. At the same time, since the elastic reset member 600 is sleeved outside the transmission member 500, that is, the transmission member 500 can limit the elastic reset member 600, so that the elastic reset member 600 can play a more stable reset role. In this embodiment, the elastic reset member 600 can be a cylindrical member, which can undergo telescopic deformation along its own axial direction and torsional deformation in its own circumferential direction, thereby applying forces to different components. Of course, the resetting of the transmission member 500 can also be achieved by an additionally provided elastic member.

[0032] Specifically, the process of the elastic reset member 600 resetting the transmission member 500 can be specifically referred to Figure 3 and Figure 5 In the process of the transmission member 500 driving the second inner shell 230 to rotate, the first driving protrusion 510 squeezes the second driving protrusion 232, and at the same time, in the sliding direction of the transmission member 500, the first driving protrusion 510 will move from one side of the second driving protrusion 232 (for details, please refer to Figure 3 ) slides to the other side of the second driving protrusion 232 (for details, please refer to Figure 5 ), during which the elastic reset member 600 can accumulate elastic potential energy.

[0033] When the user takes the earphone 400 out of the earphone receiving cavity 210, the transmission member 500 is not subjected to the extrusion force. Under the action of the elastic reset member 600, the first driving protrusion 510 moves from the other side of the second driving protrusion 232 (see details). Figure 5 ) slides to one side of the second driving protrusion 232 (for details, please refer to Figure 3), and at the same time, during this process, the transmission member 500 will drive the second inner shell 230 to rotate again, and during the rotation of the second inner shell 230, the elastic reset member 600 can gather elastic potential energy again to reset the second inner shell 230. It can be seen that the embodiment of the present application can reset the transmission member 500 and the second inner shell 230 through the same elastic reset member 600, which can reduce the structural complexity of the charging box. Of course, the embodiment of the present application can also reset the transmission member 500 and the second inner shell 230 respectively through different elastic reset members 600.

[0034] Optionally, refer to Figures 2 to 6 The transmission member 500 has a first end 520 and a second end 530 which are arranged opposite to each other. The first end 520 is located in the earphone receiving cavity 210, and the second end 530 passes through the second inner shell 230, and can be specifically a guide hole 231 passing through the second inner shell 230 (the guide hole 231 has the same structure as the guide hole 231 described above), and is located outside the second inner shell 230. One end of the elastic reset member 600 can be plugged with the first end 520, and the other end of the elastic reset member 600 can be plugged with the bottom wall of the second inner shell 230. This ensures the connection stability of the elastic reset member 600 with the transmission member 500 and the second inner shell 230, and the elastic reset member 600 can be detachably connected with the transmission member 500 and the second inner shell 230, so as to facilitate the maintenance or replacement of the elastic reset member 600. Of course, one end of the elastic reset member 600 can also be bonded or welded to the first end 520, and the other end of the elastic reset member 600 can also be bonded or welded to the bottom wall of the second inner shell 230.

[0035] Specifically, please refer to Fig.11 The elastic return member 600 may include an elastic body 610, a first plug-in fitting portion 620 and a second plug-in fitting portion 630. The first plug-in fitting portion 620 and the second plug-in fitting portion 630 are both protruding relative to the elastic body 610, and the protruding direction of the first plug-in fitting portion 620 is opposite to the protruding direction of the second plug-in fitting portion 630, that is, the extension direction of the first plug-in fitting portion 620 is parallel to the extension direction of the second plug-in fitting portion 630. The first plug-in fitting portion 620 can be specifically plug-fitted with the first end 520, and the second plug-in fitting portion 630 can be specifically plug-fitted with the bottom wall of the second inner shell 230.

[0036] Optionally, to prevent the transmission member 500 from rotating when driving the second inner shell 230 to rotate, a limiting structure may be provided on the inner wall of the outer shell 100, and the transmission member 500 may be limited by the limiting structure, thereby preventing the transmission member 500 from rotating.

[0037] In another embodiment, please refer to Figures 2 to 5 and Fig.10A guide protrusion 110 is protruded from the bottom wall of the outer shell 100, and a guide groove 111 is opened in the guide protrusion 110. The guide groove 111 is arranged opposite to the guide hole 231 of the second inner shell 230 (the guide hole 231 has the same structure as the guide hole 231 described above), and the transmission member 500 has a second end 530 located outside the second inner shell 230 (the second end 530 has the same structure as the second end 530 described above), the second end 530 is guided and matched with the guide groove 111, and in the rotation direction of the second inner shell 230, the second end 530 is limitedly matched with the guide groove 111.

[0038] It can be seen that the guide groove 111 can prevent the second end 530 from rotating, and thus prevent the transmission member 500 from rotating. At the same time, during the sliding process of the transmission member 500, the second end 530 cooperates with the guide groove 111, that is, the guide groove 111 can play a guiding role, which makes the sliding of the transmission member 500 more stable, and then the transmission member 500 can more stably drive the second inner shell 230 to rotate.

[0039] Optionally, the cross-section of the guide groove 111 may be in the shape of a triangle, a rectangle or an ellipse, and correspondingly, the cross-section of the second end 530 may also be in the shape of a triangle, a rectangle or an ellipse. Of course, the guide groove 111 may also be a groove of other special-shaped structures, and correspondingly, the second end 530 may also be an end of other special-shaped structures.

[0040] Optionally, the earphone assembly may further include a first magnetic member and a second magnetic member, the first magnetic member is disposed in the earphone 400, the second magnetic member is disposed on the inner shell 200, and the first magnetic member and the second magnetic member are magnetically attracted to each other, so that the earphone 400 can be stably and quickly placed in the earphone receiving cavity 210, that is, under the magnetic attraction of the first magnetic member and the second magnetic member, the earphone 400 can quickly enter the earphone receiving cavity 210, and at the same time, the earphone 400 can automatically squeeze the transmission member 500, that is, there is no need to manually apply force to the earphone 400 to squeeze the transmission member 500. Of course, the earphone assembly may also not include the first magnetic member and the second magnetic member.

[0041] Optionally, the number of the earphones 400 is usually two, and correspondingly, the number of the earphone receiving chambers 210 may also be two, that is, the number of the first inner shell 220 and the second inner shell 230 is two, wherein, please refer to Fig. 9 The two first inner shells 220 can be integrally arranged, and the two second inner shells 230 are rotatably connected to the two first inner shells 220 to enclose two earphone accommodating cavities 210 for placing two earphones 400.

[0042] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An earphone assembly, characterized in that: The device comprises an earphone (400) and a charging box, wherein the charging box comprises an outer shell (100), an inner shell (200) and a charging shrapnel (300). The inner shell (200) is arranged inside the outer shell (100), and at least a portion of the inner shell (200) can rotate relative to the outer shell (100), and the inner shell (200) has an earphone accommodating cavity (210), and the earphone (400) can be arranged inside the earphone accommodating cavity (210); The charging spring (300) is connected to the inner shell (200), and the charging spring (300) includes an elastic deformation portion (310), and the elastic deformation portion (310) is located in the earphone accommodating cavity (210) to contact the charging column (410) of the earphone (400). When the elastic deformation portion (310) is in contact with the charging column (410), at least a portion of the inner shell (200) rotates relative to the outer shell (100) to drive the charging spring (300) to slide relative to the charging column (410), so that the elastic deformation portion (310) and the charging column (410) rub against each other.

2. The earphone assembly according to claim 1, characterized in that: The inner shell (200) comprises a first inner shell (220) and a second inner shell (230), the first inner shell (220) being connected to the outer shell (100), the first inner shell (220) and the second inner shell (230) being arranged in sequence in the height direction of the charging box, and the two together enclose the earphone accommodating cavity (210), the charging spring sheet (300) being connected to the second inner shell (230), the second inner shell (230) being rotatably connected to the first inner shell (220), and the second inner shell (230) being rotatable relative to the outer shell (100) and the first inner shell (220) to drive the charging spring sheet (300) to slide relative to the charging column (410).

3. The earphone assembly according to claim 2, characterized in that: When the elastic deformation portion (310) is in contact with the charging column (410), the earphone (400) is transmission-connected to the second inner shell (230) to drive the second inner shell (230) to rotate relative to the outer shell (100) and the first inner shell (220).

4. The earphone assembly according to claim 3, characterized in that: The earphone assembly further comprises a transmission member (500), wherein the transmission member (500) is slidably matched with the second inner shell (230), and when the elastic deformation portion (310) is in contact with the charging column (410), the earphone (400) squeezes the transmission member (500), and the transmission member (500) slides relative to the second inner shell (230) under the squeezing action of the earphone (400), so as to drive the second inner shell (230) to rotate.

5. The earphone assembly according to claim 4, characterized in that: A guide hole (231) is provided at the bottom of the second inner shell (230), and the transmission member (500) is slidably matched with the guide hole (231). A first driving protrusion (510) is protruded from the transmission member (500), and a second driving protrusion (232) is protruded from the second inner shell (230). When the transmission member (500) slides, the first driving protrusion (510) approaches and presses the second driving protrusion (232) to drive the second inner shell (230) to rotate.

6. The earphone assembly according to claim 5, characterized in that: The first driving protrusion (510) and the second driving protrusion (232) both have a guiding inclined surface (511).

7. The earphone assembly according to claim 5, characterized in that: The transmission member (500) comprises a first end (520), a connecting section (540) and a second end (530) which are connected in sequence, the first end (520) being located in the earphone receiving cavity (210), the second end (530) being located outside the second inner shell (230), the connecting section (540) being slidably matched with the guide hole (231), and the first end (520) and the second end (530) both protrude relative to the outer peripheral surface of the connecting section (540).

8. The earphone assembly according to claim 4, characterized in that: The earphone assembly further comprises an elastic reset member (600), wherein the elastic reset member (600) is sleeved outside the transmission member (500), and one end of the elastic reset member (600) is connected to the transmission member (500), and the other end of the elastic reset member (600) is connected to the second inner shell (230), and the elastic reset member (600) can drive the second inner shell (230) to reset, and when the transmission member (500) is separated from the earphone (400), the elastic reset member (600) can drive the transmission member (500) to reset.

9. The earphone assembly according to claim 8, characterized in that: The transmission member (500) has a first end (520) and a second end (530) which are arranged opposite to each other, the first end (520) is located in the earphone accommodating cavity (210), the second end (530) passes through the second inner shell (230) and is located outside the second inner shell (230), one end of the elastic return member (600) is plugged into and matched with the first end (520), and the other end of the elastic return member (600) is plugged into and matched with the bottom wall of the second inner shell (230).

10. The earphone assembly according to claim 4, characterized in that: A guide protrusion (110) is protruded from the bottom wall of the outer shell (100), and a guide groove (111) is formed on the guide protrusion (110). The guide groove (111) is arranged opposite to the guide hole (231) of the second inner shell (230), and the transmission member (500) has a second end (530) located outside the second inner shell (230), and the second end (530) is in guiding cooperation with the guide groove (111). In the rotation direction of the second inner shell (230), the second end (530) is in limiting cooperation with the guide groove (111).

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