Charging case and earphone system

Abstract

The application discloses a charging box and an earphone system. The charging box is used for charging the earphone. The charging box comprises a shell and a charging assembly. The charging assembly is opposite to the shell in a first direction. The charging assembly comprises a housing and an earphone compartment. The housing is connected with the shell and can slide relative to the shell in a second direction. The housing is provided with a receiving groove for accommodating at least part of the earphone compartment. The earphone compartment is provided with a receiving cavity for accommodating at least part of the earphone. The earphone compartment is connected with the housing and can rotate relative to the housing around an axis parallel to a third direction. The first direction, the second direction and the third direction are perpendicular to each other. When the housing is located at a first position relative to the shell, the shell shields the receiving groove, the earphone compartment has a first posture, and the receiving cavity is closed. When the housing is located at a second position relative to the shell, the shell opens the receiving groove, the earphone compartment has a second posture, and the receiving cavity is open. The direction of the receiving cavity of the earphone compartment in the second posture is different from the direction of the receiving cavity of the earphone compartment in the first posture.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more specifically, to a charging case and headphone system. Background Technology

[0002] Wireless earbuds have captured a significant market share in the headphone industry due to their portability and lightweight design. Earbuds are typically housed in a portable charging case and charged via the case. Typically, the charging case consists of a base and a lid that fit together. The user manually flips the lid to retrieve at least part of the earbuds from the base, which are then held between the base and the lid. This method of operation is inconvenient and monotonous, as it prevents the user from operating the charging case with one hand. Utility Model Content

[0003] This application provides a charging case and earphone system to solve at least one of the aforementioned technical problems.

[0004] The charging case provided in this application embodiment is used to charge earphones. The charging case includes a shell and a charging assembly. The charging assembly is opposite to the shell in a first direction, and includes a housing and an earphone compartment. The housing is connected to the shell and can slide relative to it in a second direction, the first direction being perpendicular to the second direction. The housing has a receiving groove, and at least a portion of the earphone compartment is received in the receiving groove. The earphone compartment has a receiving cavity for receiving at least a portion of the earphone. The earphone compartment is connected to the housing and can rotate relative to the housing about an axis parallel to a third direction, the first direction, the second direction, and the third direction being perpendicular to each other; when the housing is in a first position relative to the shell, the shell covers the receiving groove, the earphone compartment has a first posture, and the receiving cavity is closed; when the housing is in a second position relative to the shell, the shell opens the receiving groove, the earphone compartment has a second posture, the receiving cavity is open, and the orientation of the receiving cavity in the second posture is different from the orientation of the receiving cavity in the first posture.

[0005] In some embodiments, the earphone compartment is connected to the outer shell, and when the outer shell is in a second position relative to the housing, the orientation of the receiving cavity is within a first preset range, forming a first angle with the first direction.

[0006] In some embodiments, when the outer casing is located in the first position relative to the housing, the second included angle between the orientation of the receiving cavity and the second direction is within a second preset range.

[0007] In some embodiments, when the outer casing is in the first position relative to the housing, the receiving cavity faces the second direction; when the outer casing is in the second position relative to the housing, the receiving cavity faces the first direction.

[0008] In some embodiments, in the third direction, the outer shell has two opposing insertion holes that communicate with the receiving groove. The earphone compartment includes two opposing connectors in the third direction, at least a portion of which extends into the insertion holes. When the outer shell slides relative to the housing, the outer shell causes the connectors to rotate relative to the insertion holes. When the outer shell is in the second position relative to the housing, the earphone compartment rotates to and remains in the second posture.

[0009] In some embodiments, the housing has two sliding grooves, located on the left and right sides of the housing in the first direction, respectively. Each sliding groove has a insertion hole at its bottom in the first direction. The housing includes two mating members, located on the left and right sides of the housing in the first direction, respectively, and each housed within one of the two sliding grooves. When the housing slides relative to the housing along the second direction, the mating members slide within the sliding grooves and engage with corresponding connecting members to rotate the connecting members relative to the insertion hole.

[0010] In some embodiments, the mating member includes a rack. The connecting member includes a gear shaft, which includes a connecting shaft and a gear disposed on the connecting shaft, the connecting shaft passing through the insertion hole. When the housing slides relative to the casing in the second direction, the rack meshes with the gear to drive the gear shaft to rotate in the insertion hole.

[0011] In some embodiments, the charging assembly further includes two first limiting members disposed on the left and right sides of the sidewalls of the housing opposite to the outer shell in the first direction. The housing further includes two second limiting members disposed on the left and right sides of the sidewalls of the housing opposite to the outer shell in the first direction. The first and second limiting members cooperate to guide the sliding of the housing relative to the outer shell.

[0012] In some embodiments, the charging case further includes a first positioning member and a second positioning member. The first positioning member is disposed on the side wall of the housing opposite to the outer shell. The second positioning member is disposed on the side wall of the outer shell opposite to the outer shell, and the second positioning member includes a first sub-positioning member and a second sub-positioning member. When the outer shell is in the first position relative to the outer shell, the first positioning member and the first sub-positioning member are engaged by at least one of magnetic attraction or engagement; when the outer shell is in the second position relative to the outer shell, the first positioning member and the second sub-positioning member are engaged by at least one of magnetic attraction or engagement.

[0013] In some embodiments, the charging case further includes an energy storage device and an interface. The energy storage device is housed within the housing. The energy storage device is electrically connected to the earphone compartment and configured to charge the earphones housed in the earphone compartment. The interface is located on the housing and is electrically connected to the energy storage device. When an external power source is electrically connected to the interface, the energy storage device is configured to be charged by the external power source through the interface.

[0014] In some embodiments, the charging case further includes an energy storage device and an interface. The energy storage device is housed within the housing. The interface is located on the housing and is electrically connected to the energy storage device. When the device to be charged is electrically connected to the interface, the energy storage device is configured to charge the device through the interface.

[0015] The headphone system provided in this application includes a charging case and headphones as described in any of the above embodiments, wherein the charging case is used to charge the headphones.

[0016] In some embodiments, the headphones are clip-on headphones.

[0017] In the charging case and earphone system of this application embodiment, the charging component and the housing are opposite to each other in a first direction. The housing has a receiving groove for accommodating the earphone compartment, and at least a portion of the earphone is accommodated in the receiving cavity of the earphone compartment, which can charge the earphone. The housing can slide relative to the housing in a second direction to open or close the receiving cavity. Specifically, when the housing is in a first position relative to the housing, the receiving groove is covered by the housing, the earphone compartment has a first posture, the receiving cavity is in a closed state, and the charging case can stably accommodate the earphone; when the housing is in a second position relative to the housing, the earphone compartment has a second posture, the receiving groove is not covered by the housing and is in an open state, the receiving cavity is in an open state, and the earphone can be easily taken out of the charging case. At this time, the user can take out the earphone from the charging case with one hand, which makes the user's operation of the charging case more convenient and fun.

[0018] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is a schematic diagram of the structure of a headphone system according to certain embodiments of this application; Figure 2 This is a three-dimensional assembly diagram of the charging case in the closed state according to certain embodiments of this application; Figure 3 yes Figure 2 The diagram shows the three-dimensional structure of the charging case in the open state; Figure 4 yes Figure 2 The diagram shown is a 3D exploded view of the charging case at one angle. Figure 5 yes Figure 2 The shown is a 3D exploded view of the charging box from another angle; Figure 6 yes Figure 2 The charging case shown is a bottom view; Figure 7 yes Figure 2 The diagram shows a cross-sectional view of the charging box taken by line VII-VII.

[0020] Explanation of key component symbols: Headphone system 1000; Earphones 300; Transducer assembly 310; Ear clip assembly 330; Charging case 100; Housing 10; Mating part 11; Rack 111; Second limiting part 13; Charging component 30; housing 31; receiving slot 311; plug hole 313; sliding groove 315; earphone case 33; receiving cavity 331; connector 333; gear shaft 3331; connecting shaft 33311; gear 33313; first limiting member 35; First positioning component 51; Second positioning component 53; First sub-positioning component 531; Second sub-positioning component 533; Energy storage device 70; Interface 90; First direction Z; second direction X; third direction Y. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0022] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0024] Wireless earphones have captured a significant market share in the earphone industry due to their portability and lightweight design. Earphones are typically housed in a portable charging case and charged via the case. Generally, the charging case includes a base and a lid that fit together. The user manually flips the lid to retrieve the earphones, which are at least partially housed in the base and sandwiched between the base and lid. However, this method of removing the earphones from the charging case with one hand is inconvenient and monotonous. To address these issues, this application provides a charging case 100 (see reference...). Figure 2 and Figure 3 ) and headphone system 1000 (please refer to) Figure 1 ).

[0025] Please refer to Figure 4 and Figure 5 The headphone system 1000 provided in this application includes headphones 300 and a charging case 100. The charging case 100 is used to charge the headphones 300.

[0026] It is understood that the charging case 100 is a device in the headphone system 1000 used to charge or store the headphones 300. For example, when the headphones 300 are low on power or not in use, the user can place them in the charging case 100. The charging case 100 can be a fixed power source type charging case, in which case the charging case 100 needs to be electrically connected to the power grid or power supply device to deliver electrical energy from the power grid or power supply device to the headphones 300. The charging case 100 can also be a portable power source type charging case, in which case the charging case 100 has a built-in rechargeable energy storage device 70, and during the charging process of the charging case 100 charging the headphones 300, the electrical energy of the energy storage device is delivered to the power supply device in the headphones 300. This application uses a portable power source type charging case as an example for explanation.

[0027] The earphone 300 can be worn on a user's ear and can be used with devices such as mobile phones, computers, smart wearable devices (such as smartwatches, smart bracelets, smart glasses, and smart helmets), head-mounted displays, and virtual reality devices. In some embodiments of this application, the earphone 300 is an ear clip-on earphone, which includes an ear clip assembly 330 and a transducer assembly 310. When worn, the transducer assembly 310 is located in the concha of the ear and aligned with the ear canal. One end of the ear clip assembly 330 is connected to the transducer assembly 310, and the other end is fixed to the lower back of the auricle. The ear clip assembly 330 wraps around the upper back of the ear so that the earphone 300 is clipped onto the auricular cartilage between the tragus and antitragus, reducing the possibility of the earphone 300 falling out during wear.

[0028] It should be noted that in some embodiments, the earphone 300 includes a power supply component (not shown). The power supply component can be disposed in the ear clip assembly 330 or the transducer assembly 310. The power supply component can be a rechargeable battery, including but not limited to lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. When the power supply component is disposed in the ear clip assembly 330, the ear clip assembly 330 may be provided with a conductive element, and the power supply component can be electrically connected to the transducer assembly 310 through the conductive element to provide power to the transducer assembly 310. The conductive element can be spring steel, titanium wire, etc., and this application does not impose any limitations.

[0029] In some embodiments, the transducer assembly 310 may be provided with a first electrical connector (not shown), and the charging case 100 may be provided with a second electrical connector (not shown). When the first electrical connector and the second electrical connector are electrically connected, the charging case 100 and the earphone 300 can perform functions such as power transmission and data transmission. For example, when the first electrical connector and the second electrical connector are electrically connected, the charging case 100 can transmit the electrical energy in the energy storage device to the power supply device through the second electrical connector and the first electrical connector, thereby realizing the charging function of the earphone 300. It should be noted that in some embodiments, the first electrical connector may be at least one of the elements that can realize electrical connection, such as a spring pin and a spring sheet; the second electrical connector may be an element that can be electrically connected to the first electrical connector.

[0030] Since the headphone system 1000 in this embodiment includes a charging case 100, it is understood that the headphone system 1000 includes at least the same beneficial effects as the charging case 100. Therefore, for the beneficial effects of the headphone system 1000, please refer to the beneficial effects of the charging case 100 described below.

[0031] Please refer to Figures 2 to 4 The charging case 100 provided in this embodiment is used to charge the earphones 300. The charging case 100 includes a housing 10 and a charging assembly 30. The charging assembly 30 is opposite to the housing 10 in a first direction Z, and includes a shell 31 and an earphone compartment 33. The shell 31 is connected to the housing 10 and can slide relative to it in a second direction X, where the first direction Z is perpendicular to the second direction X. The shell 31 has a receiving groove 311, and at least a portion of the earphone compartment 33 is received in the receiving groove 311. The earphone compartment 33 has a receiving cavity 331 for receiving at least a portion of the earphones 300. The earphone compartment 33 is connected to the shell 31 and can rotate relative to the shell 31 about an axis parallel to a third direction Y, where the first direction Z, the second direction X, and the third direction Y are perpendicular to each other. When the outer shell 31 is in a first position relative to the housing 10, the housing 10 covers the receiving groove 311, the earphone compartment 33 has a first posture, and the receiving cavity 331 is closed; when the outer shell 31 is in a second position relative to the housing 10, the housing 10 opens the receiving groove 311, the earphone compartment 33 has a second posture, and the receiving cavity 331 is open. The orientation of the receiving cavity 331 in the second posture is different from the orientation of the receiving cavity 331 in the first posture.

[0032] Specifically, in the above embodiments, the housing 10 is a component in the charging case 100 that cooperates with the charging assembly 30 and protects the earphone compartment 33. The material of the housing 10 includes, but is not limited to, one or more combinations of plastic, aluminum alloy, copper, iron, steel, and carbon fiber composite materials. For example, the housing 10 is made of plastic, which makes the charging case 100 lighter, reduces the weight of the charging case 100, and improves the portability of the charging case 100.

[0033] The charging component 30 is a component in the charging case 100 used to implement the charging function. In this application, the direction of the charging component 30 relative to the housing 10 when the charging case 100 is in its normal state is defined as the first direction Z, such as... Figures 2 to 4 As shown, it can be understood that when the outer shell 31 is in the first position or the second position relative to the housing 10, the charging assembly 30 and the housing 10 are at least partially opposite each other in the first direction Z. The outer shell 31 is a structure in the charging assembly 30 for accommodating and installing the earphone compartment 33. The material of the outer shell 31 includes, but is not limited to, one or more combinations of plastic, aluminum alloy, copper, iron, steel and carbon fiber composite materials. For example, the material of the outer shell 31 is plastic, which makes the charging case 100 lighter, reduces the weight of the charging case 100, and improves the portability of the charging case 100. The outer shell 31 and the housing 10 are movably connected, specifically, the outer shell 31 and the housing 10 can slide relative to each other in the second direction X. This application defines the direction in which the outer shell 31 and the housing 10 slide relative to each other as the second direction X, which is perpendicular to the first direction Z.

[0034] The earphone compartment 33 is a structure in the charging assembly 30 used to directly accommodate the earphones 300 for charging. A receiving groove 311 is provided on the side of the outer casing 31 opposite to the housing 10. The receiving groove 311 is a spatial structure for accommodating the earphone compartment 33. The size and shape of the receiving groove 311 are respectively matched with the size and shape of the earphone compartment 33 so that at least a portion of the earphone compartment 33 can be accommodated in the receiving groove 311. A receiving cavity 331 is a spatial structure in the earphone compartment 33 used to accommodate the earphones 300. The size and shape of the receiving cavity 331 are respectively matched with the size and shape of the earphones 300 so that at least a portion of the earphones 300 can be accommodated in the receiving cavity 331.

[0035] When the outer shell 31 is connected to the housing 10 and can slide relative to it along the second direction X, the outer shell 31 and the housing 10 have extreme positions of approaching each other and extreme positions of moving away from each other. This application defines the extreme position where the outer shell 31 is approaching the housing 10 as the first position, where the overlapping area of ​​the projection area of ​​the outer shell 31 on the plane perpendicular to the first direction Z and the projection area of ​​the housing 10 on the plane perpendicular to the first direction Z is the largest, and the charging case 100 is in a closed state. This application defines the extreme position where the outer shell 31 is moving away from the housing 10 as the second position, where the overlapping area of ​​the projection area of ​​the outer shell 31 on the plane perpendicular to the first direction Z and the projection area of ​​the housing 10 on the plane perpendicular to the first direction Z is the smallest, and the charging case 100 is in an open state.

[0036] When the outer shell 31 is in the first position relative to the outer shell 10, the relative area between the outer shell 10 and the outer shell 31 in the first direction Z is relatively large. The outer shell 10 is opposite to the receiving groove 311 in the first direction Z to cover the receiving groove 311. At this time, the earphone compartment 33 is closed inside by the outer shell 10 and the outer shell 31, and the receiving cavity 331 is closed. At this time, the earphone 300 cannot be taken out of the charging case 100. When the outer shell 31 is in the second position relative to the outer shell 10, the relative area between the outer shell 10 and the outer shell 31 in the first direction Z is relatively small. The outer shell 10 is offset from the receiving groove 311 in the first direction Z to open the receiving groove 311. At this time, at least a part of the earphone compartment 33 is directly connected to the outside in the first direction Z, and the receiving cavity 331 is open. At this time, the earphone 300 can be taken out of the charging case 100.

[0037] This application defines the direction perpendicular to both the first direction Z and the second direction X as the third direction Y. It can be understood that the first direction Z, the second direction X, and the third direction Y are all perpendicular to each other. The earphone compartment 33 is movably connected to the outer shell 31. Specifically, the earphone compartment 33 can rotate relative to the outer shell 31 about an axis parallel to the third direction Y, so that the receiving cavity 331 can have different orientations relative to the outer shell 31 and the receiving groove 311 opened on the outer shell 31.

[0038] The attitude of the earphone compartment 33 when the outer shell 31 is in the first position relative to the outer shell 10 is defined as the first attitude. Please refer to [reference needed]. Figure 2 , Figure 4 and Figure 5 When the outer shell 31 is in the first position relative to the outer shell 10 and the earphone compartment 33 is in the first posture, the outer shell 10 is opposite to the receiving groove 311 in the first direction Z to cover the receiving groove 311. At this time, the earphone compartment 33 is closed inside by the outer shell 10 and the outer shell 31, and the receiving cavity 331 is closed. At this time, when the user does not need to take out or put in the earphone 300, the orientation of the receiving cavity 331 can be any direction different from the second posture.

[0039] The attitude of the earphone compartment 33 when the outer shell 31 is in the second position relative to the outer shell 10 is defined as the second attitude. Please refer to [reference needed]. Figure 3 When the outer shell 31 is in the second position relative to the outer shell 10 and the earphone compartment 33 is in the second posture, the outer shell 10 is offset from the receiving groove 311 in the first direction Z to open the receiving groove 311. At this time, at least a part of the earphone compartment 33 is directly connected to the outside in the first direction Z, and the receiving cavity 331 is open. At this time, the user can take it out and put it in the charging case 100.

[0040] In the charging case 100 of this embodiment, the charging assembly 30 is opposite to the housing 10 in the first direction Z. The housing 31 is provided with a receiving groove 311 for accommodating the earphone compartment 33. At least a portion of the earphone 300 is accommodated in the receiving cavity 331 of the earphone compartment 33, and the earphone compartment 33 can charge the earphone 300. The housing 31 can slide relative to the housing 10 in the second direction X to open or close the receiving cavity 331. Specifically, when the outer shell 31 is in the first position relative to the outer shell 10, the receiving slot 311 is covered by the outer shell 10, the earphone compartment 33 has a first posture, the receiving cavity 331 is in a closed state, and the charging case 100 can stably accommodate the earphone 300; when the outer shell 31 is in the second position relative to the outer shell 10, the receiving slot 311 is not covered by the outer shell 10 and is in an open state, the earphone compartment 33 has a second posture, the receiving cavity 331 is in an open state, and the earphone 300 can be easily taken out and put into the charging case 100. At this time, the user can operate the charging case 100 with one hand, and the user's operation of the charging case 100 is more convenient and more fun.

[0041] Please refer to Figures 2 to 5 In some embodiments, when the outer casing 31 is in a second position relative to the housing 10, the orientation of the accommodating cavity 331 is within a first preset range of the first angle with the first direction Z.

[0042] Specifically, in the above embodiments, With the outer shell 31 positioned relative to the housing 10 in a first position, the angle between the orientation of the receiving cavity 331 and the first direction Z is defined as a first angle. A first preset range is the range of values ​​for the first angle within which the user can smoothly remove the earphone 300 from the earphone compartment 33. When the first angle is within the first preset range, the earphone 300 will not collide with the outer shell 31 or housing 10 during the process of removing or placing the earphone 300 from or into the earphone compartment 33, allowing the user to smoothly remove the earphone 300 from the earphone compartment 33.

[0043] Therefore, in the charging case 100 of this application, the earphone compartment 33 can rotate relative to the outer shell 31 around an axis parallel to the third direction Y. When the earphone compartment 33 is in the second posture, the first included angle is within a first preset range, at which time the user can smoothly remove the earphones 300 from the charging case 100. During the process of switching between opening and closing the charging case 100, the user can operate the charging case 100 with one hand, and the rotation of the earphone compartment 33 brings greater fun to the user, resulting in a better user experience of the charging case 100.

[0044] Please refer to Figures 2 to 5 In some embodiments, when the outer casing 31 is in a first position relative to the housing 10, the second included angle between the orientation of the receiving cavity 331 and the second direction X is within a second preset range.

[0045] Specifically, when the outer shell 31 is in the second position relative to the outer shell 10, the angle between the orientation of the accommodating cavity 331 and the first direction Z is defined as the second angle. The second preset range is the range of values ​​of the second angle corresponding to the smaller rotation angle of the earphone compartment 33 relative to the outer shell 31 when switching between the first and second positions. When the second angle is within the second preset range, when the user operates the charging case 100 to switch the earphone compartment 33 from the first position to the second position, or from the second position to the first position, the rotation angle of the earphone compartment 33 relative to the outer shell 31 about the axis parallel to the third direction Y is smaller. At this time, within the same switching time, the angular velocity of the earphone compartment 33 is smaller, and the rotation process of the earphone compartment 33 can occur more smoothly. Therefore, the structural stability of the charging case 100 is better, the earphone 300 is less likely to become loose or bumped in the charging case 100, and the service life of both the charging case 100 and the earphone 300 is longer.

[0046] Please refer to Figures 2 to 5 In some embodiments, when the outer casing 31 is in a first position relative to the housing 10, the receiving cavity 331 faces the second direction X; when the outer casing 31 is in a second position relative to the housing 10, the receiving cavity 331 faces the first direction Z.

[0047] Specifically, please combine Figure 1 In the embodiments of this application, the earphone 300 is an ear clip-on earphone, and the presence of the ear clip assembly 330 gives the earphone 300 a certain height. When the outer shell 31 is in a first position relative to the shell 10, and the earphone compartment 33 is in a first posture, the direction in which the receiving cavity 331 faces is the second direction X, such as... Figure 2 and Figure 4 As shown, the height direction of the earphone 300 is the second direction X at this time, and the receiving groove 311 can play the role of avoiding the ear clip assembly 330. With the outer shell 31 in a second position relative to the outer shell 10, and the earphone compartment 33 in a second posture, the direction in which the receiving cavity 331 faces is the first direction Z, such as... Figure 3 As shown, the height direction of the earphone 300 is the first direction Z. Since the accommodating cavity 331 is open and connected to the outside in the first direction Z, the ear clip assembly 330 is also connected to the outside in the first direction Z, allowing the user to smoothly place and remove the earphone 300 from the charging case 100. It can be understood that the size of the charging case 100 in the second direction X is greater than the maximum size of the earphone 300 (i.e., the size of the earphone 300 in the height direction), while the size of the charging case 100 in the first direction Z does not need to be greater than the maximum size of the earphone 300. Therefore, the outer shell 30 and the charging case 100 can be miniaturized, resulting in better portability and a better user experience.

[0048] Please refer to Figure 3 , Figure 4 and Figure 7 In some embodiments, in the third direction Y, the housing 31 is provided with two opposing insertion holes 313, which communicate with the receiving groove 311. The earphone compartment 33 includes two opposing connectors 333 in the third direction Y, at least a portion of which extends into the insertion holes 313. When the housing 31 slides relative to the housing 10, the housing 31 causes the connectors 333 to rotate relative to the insertion holes 313. When the housing 31 is in a second position relative to the housing 10, the earphone compartment 33 rotates to and maintains this second posture.

[0049] Specifically, the insertion hole 313 is a spatial structure for installing the connector 333. There are two insertion holes 313, both of which are opened on the housing 31. The two insertion holes 313 are opposite each other in the third direction Y. The insertion holes 313 are opened on the groove wall of the receiving groove 311 and communicate with the receiving groove 311.

[0050] Connector 333 is a structure used to connect the earphone compartment 33 to the outer shell 31. There are two connectors 333, both connected to the earphone compartment 33. Connector 333 and earphone compartment 33 can be an integral or separate structure. When connector 333 and earphone compartment 33 are an integral structure, the connection strength is greater, and the structural stability of the charging assembly 30 is better. When connector 333 and earphone compartment 33 are separate structures, the connection method can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. This definition will be used for both detachable and non-detachable connections in the following text, providing greater flexibility in the connection between connector 333 and earphone compartment 33.

[0051] Two connectors 333 are opposite each other in the third direction Y, and each connector 333 corresponds to a plug hole 313. At least a portion of each connector 333 extends into the corresponding plug hole 313. When the outer shell 31 slides relative to the housing 10 in the second direction X, the outer shell 31 drives the connectors 333 to rotate in the plug holes 313, that is, the connectors 333 rotate relative to the plug holes 313. The earphone compartment 33 rotates relative to the outer shell 31 about an axis parallel to the third direction Y under the action of the connectors 333, so as to change the orientation of the receiving cavity 331.

[0052] With the outer shell 31 in the second position relative to the outer shell 10, the earphone compartment 33 rotates relative to the outer shell 31 to the second posture under the action of the connector 333, and the earphone compartment 33 can maintain the second posture. At this time, the outer shell 10 can remain in the open receiving slot 311 state, and the receiving cavity 331 remains open, allowing the user to easily and conveniently take the earphones 300 out of the charging case 100. At this time, the user can operate the charging case 100 with one hand, which is more convenient and more fun.

[0053] Please refer to Figures 3 to 5 ,and Figure 7 In some embodiments, the outer casing 31 is provided with two sliding grooves 315, which are located on the left and right sides of the outer casing 31 in the first direction Z, respectively. A insertion hole 313 is provided at the bottom of each sliding groove 315 in the first direction Z. The housing 10 includes two mating members 11, which are located on the left and right sides of the housing 10 in the first direction Z, respectively, and are respectively accommodated in the two sliding grooves 315. When the outer casing 31 slides relative to the housing 10 in the second direction X, the mating member 11 slides in the sliding groove 315 and can engage with the corresponding connecting member 333 to drive the connecting member 333 to rotate relative to the insertion hole 313.

[0054] Specifically, the sliding groove 315 is a spatial structure for mating with the mating part 11. There are two sliding grooves 315, both formed on the outer casing 31. The two sliding grooves 315 are respectively formed on the left and right sides of the outer casing 31 in the first direction Z, and are opposite each other in the third direction Y. On the left and right sides in the first direction Z, the insertion hole 313 located on the same side forms a group with the sliding groove 315. The insertion hole 313 is formed at the bottom of the groove 315 in the first direction Z, and the insertion hole 313 communicates with the sliding groove 315.

[0055] The mating component 11 is a structure of the housing 10 used to mate with the connecting component 333 to realize the driving of the connecting component 333 by the housing 10. There are two mating components 11, both of which are provided on the housing 10. The two mating components 11 are respectively provided on the left and right sides of the housing 10 in the first direction Z, and opposite to each other in the third direction Y. On the left and right sides of the first direction Z, each mating component 11 is respectively accommodated in a corresponding sliding groove 315. It can be understood that on the left and right sides of the first direction Z, the insertion hole 313, the sliding groove 315, the mating component 11 and the connecting component 333 located on the same side form a group.

[0056] When the outer shell 31 slides relative to the shell 10 along the second direction X, each mating part 11 can slide along the second direction X, or along a direction at a certain angle to the second direction X, in the sliding groove 315 on the same side. The mating parts 11 cooperate with the connecting parts 333 on the same side. The mating parts 11 drive the connecting parts 333 to rotate in the insertion hole 313, that is, the connecting parts 333 rotate relative to the insertion hole 313. The earphone compartment 33 rotates relative to the outer shell 31 around an axis parallel to the third direction Y under the action of the connecting parts 333, thereby changing the orientation of the receiving cavity 331. At this time, the user can operate the outer shell 31 to slide relative to the shell 10 along the second direction X with one hand to make the mating parts 11 slide in the sliding groove 315, thereby driving the corresponding connecting parts 333 to rotate relative to the insertion hole 313, thereby changing the orientation of the receiving cavity 331. The user can flexibly take the earphones 300 out of the charging case 100. The user's operation of the charging case 100 is more convenient and more fun.

[0057] Please refer to Figures 3 to 5 ,and Figure 7 In some embodiments, the mating member 11 includes a rack 111. The connecting member 333 includes a gear shaft 3331, which includes a connecting shaft 33311 and a gear 33313 disposed on the connecting shaft 33311. The connecting shaft 33311 passes through the insertion hole 313. When the housing 31 slides relative to the housing 10 in the second direction X, the rack 111 meshes with the gear 33313 to drive the gear shaft 3331 to rotate in the insertion hole 313.

[0058] Specifically, the rack 111 is positioned on the side of the mating member 11 near the connecting member 333 and is used to cooperate with the mating member 11 to transmit force. The gear shaft 3331 is a structure within the connecting member 333 that simultaneously mates with the insertion hole 313 and the mating member 11. The connecting shaft 33311 is a structure within the gear shaft 3331 used to mount the gear 33313 and to achieve the mating of the gear shaft 3331 with the insertion hole 313. The connecting shaft 33311 and the gear shaft 3331 can be an integral structure or separate structures. When the connecting shaft 33311 and the gear shaft 3331 are an integral structure, the gear shaft 3331 has greater structural strength and can transmit greater force. When the connecting shaft 33311 and the gear shaft 3331 are separate structures, the connection between the connecting shaft 33311 and the gear shaft 3331 can be a detachable connection or a non-detachable connection, which provides greater flexibility in the connection between the connecting shaft 33311 and the gear shaft 3331. The connecting shaft 33311 passes through the insertion hole 313 to achieve the fit between the connecting piece 333 and the insertion hole 313. The module and pressure angle of the rack 111 are the same as those of the gear 33313, so that the rack 111 and the gear 33313 can mesh.

[0059] When the outer shell 31 slides relative to the shell 10 along the second direction X, each mating part 11 can slide along the second direction X, or along a direction at a certain angle to the second direction X, in the sliding groove 315 on the same side. The rack 111 meshes with the gear 33313 on the same side, so that the mating part 11 drives the connector 333 to rotate in the insertion hole 313, that is, the connector 333 rotates relative to the insertion hole 313. Under the action of the connector 333, the earphone compartment 33 rotates relative to the outer shell 31 around an axis parallel to the third direction Y, thereby changing the orientation of the receiving cavity 331. At this time, the user can operate the outer shell 31 to slide relative to the shell 10 along the second direction X with one hand, so that the mating part 11 slides in the sliding groove 315, thereby driving the corresponding connector 333 to rotate relative to the insertion hole 313, thereby changing the orientation of the receiving cavity 331. The user can flexibly take the earphone 300 out of the charging case 100. The user's operation of the charging case 100 is more convenient and more fun.

[0060] Please refer to Figures 2 to 5 In some embodiments, the charging assembly 30 further includes two first limiting members 35, which are disposed on the left and right sides of the sidewalls of the housing 31 opposite to the housing 10 in the first direction Z. The housing 10 also includes two second limiting members 13, which are disposed on the left and right sides of the sidewalls of the housing 10 opposite to the housing 31 in the first direction Z. The first limiting members 35 and the second limiting members 13 cooperate to guide the sliding of the housing 10 relative to the housing 31.

[0061] Specifically, the first limiting member 35 is a structure provided on the outer shell 31 for cooperating with the second limiting member 13 to guide the sliding of the housing 10 relative to the outer shell 31. There are two first limiting members 35, respectively located on the left and right sides of the sidewalls of the outer shell 31 and the housing 10 facing each other in the first direction Z. The second limiting member 13 is a structure provided on the housing 10 for cooperating with the first limiting members 35 to guide the sliding of the housing 10 relative to the outer shell 31. There are two second limiting members 13, respectively located on the left and right sides of the sidewalls of the housing 10 and the outer shell 31 facing each other in the first direction Z. The first limiting member 35 and the second limiting member 13 located on the same side can cooperate with each other. At this time, the distribution range of the first limiting member 35 and the second limiting member 13 is large and the force is relatively uniform. The first limiting member 35 and the second limiting member 13 cooperate better to guide the sliding of the housing 10 relative to the outer shell 31. Therefore, the housing 10 and the outer shell 31 will not shift during the relative sliding process. The user's operation of the sliding of the housing 10 relative to the outer shell 31 can be carried out stably and smoothly. The user's experience and convenience of operating the charging box 100 are good, and the user experience is good.

[0062] In some embodiments, the first limiting member 35 is a guide member and the second limiting member 13 is a guide groove. The guide member can slide in the guide groove to achieve the cooperation between the first limiting member 35 and the second limiting member 13, thereby guiding the sliding of the housing 10 relative to the outer shell 31.

[0063] In other embodiments, the second limiting member 13 is a guide member, and the first limiting member 35 is a guide groove. The guide member can slide in the guide groove to achieve the cooperation between the first limiting member 35 and the second limiting member 13, thereby guiding the sliding of the housing 10 relative to the outer shell 31.

[0064] Please refer to Figures 2 to 5 In some embodiments, the charging case 100 further includes a first positioning member 51 and a second positioning member 53. The first positioning member 51 is disposed on the side wall of the housing 10 opposite to the outer shell 31. The second positioning member 53 is disposed on the side wall of the outer shell 31 opposite to the housing 10, and the second positioning member 53 includes a first sub-positioning member 531 and a second sub-positioning member 533. When the outer shell 31 is in a first position relative to the housing 10, the first positioning member 51 and the first sub-positioning member 531 are engaged by at least one of magnetic attraction and engagement; when the outer shell 31 is in a second position relative to the housing 10, the first positioning member 51 and the second sub-positioning member 533 are engaged by at least one of magnetic attraction and engagement.

[0065] Specifically, the first positioning member 51 is a structure provided on the housing 10 for cooperating with the second positioning member 53 to allow the outer shell 31 to be held in a first position or a second position relative to the housing 10. The first positioning member 51 is located on the side wall of the housing 10 opposite to the outer shell 31 and faces the outer shell 31. The second positioning member 53 is a structure provided on the outer shell 31 for cooperating with the first positioning member 51 to allow the outer shell 31 to be held in a first position or a second position relative to the housing 10. The second positioning member 53 is located on the side wall of the outer shell 31 opposite to the housing 10 and faces the housing 10. The first sub-positioning member 531 is a structure within the second positioning member 53 that cooperates with the first positioning member 51 to allow the outer shell 31 to be held in a first position relative to the housing 10. The second sub-positioning member 533 is a structure within the second positioning member 53 that cooperates with the first positioning member 51 to allow the outer shell 31 to be held in a second position relative to the housing 10.

[0066] In some embodiments, the first positioning element 51 is a magnetic element, and the second positioning element 53 is a ferromagnetic metal. The first positioning element 51 can be a single magnetic element or an array of more than one magnetic element. The magnetic element can be, but is not limited to, metallic magnetic materials or rare-earth magnetic materials, and the shape of each magnetic element can be, but is not limited to, a cube, a cylinder, or a sphere. When the outer shell 31 is in a first position relative to the housing 10, the first positioning element 51 and the first sub-positioning element 531 are connected by magnetic attraction; when the outer shell 31 is in a second position relative to the housing 10, the first positioning element 51 and the second sub-positioning element 533 are connected by magnetic attraction.

[0067] In other embodiments, the second positioning element 53 is a magnetic element, and the first positioning element 51 is a ferromagnetic metal. The second positioning element 53 can be a single magnetic element or an array of more than one magnetic element. The magnetic element can be, but is not limited to, metallic magnetic materials or rare-earth magnetic materials, and the shape of each magnetic element can be, but is not limited to, a cube, a cylinder, or a sphere. When the outer shell 31 is in a first position relative to the housing 10, the first positioning element 51 and the first sub-positioning element 531 are connected by magnetic attraction; when the outer shell 31 is in a second position relative to the housing 10, the first positioning element 51 and the second sub-positioning element 533 are connected by magnetic attraction.

[0068] In some embodiments, the first positioning element 51 and the second positioning element 53 are magnetic elements. The first positioning element 51 can be a single magnetic element or an array of more than one magnetic element, and the second positioning element 53 can be a single magnetic element or an array of more than one magnetic element. The magnetic elements can be, but are not limited to, metallic magnetic materials or rare earth magnetic materials, and the shape of each magnetic element can be, but is not limited to, a cube, a cylinder, or a sphere. When the outer shell 31 is in a first position relative to the housing 10, the first positioning element 51 and the first sub-positioning element 531 are connected by magnetic attraction; when the outer shell 31 is in a second position relative to the housing 10, the first positioning element 51 and the second sub-positioning element 533 are connected by magnetic attraction.

[0069] In other embodiments, the first positioning member 51 is a first latching member (not shown), and the second positioning member 53 is a second latching member (not shown). The first latching member and the second latching member can engage or disengage. When the outer casing 31 is in a first position relative to the housing 10, the first positioning member 51 engages with the first sub-positioning member 531; when the outer casing 31 is in a second position relative to the housing 10, the first positioning member 51 engages with the second sub-positioning member 533. It is understood that this embodiment can be combined with any of the three embodiments described above.

[0070] Therefore, the charging case 100 in this application uses the first positioning member 51, the first sub-positioning member 531, and the second sub-positioning member 533 to cooperate with each other, so that the outer shell 31 can be held in the first or second position relative to the housing 10. At this time, the relative position of the outer shell 31 and the housing 10 can resist a certain degree of external impact and remain stable. When the outer shell 31 is in the first position relative to the housing 10, the charging case 100 is less likely to be accidentally opened, and the charging case 100 and / or the earphones 300 are less likely to be damaged by external forces. When the outer shell 31 is in the second position relative to the housing 10, the charging case 100 is less likely to be accidentally closed, and the user can easily and conveniently remove and place the earphones 300 from the charging case 100. At this time, the user's operation of the charging case 100 is more convenient and easier to control, resulting in a better user experience.

[0071] Please refer to Figures 4 to 6 In some embodiments, the charging case 100 further includes an energy storage component 70 and an interface 90. The energy storage component 70 is housed within the housing 31. The energy storage component 70 is electrically connected to the earphone compartment 33 and configured to charge the earphones 300 housed in the earphone compartment 33. The interface 90 is provided on the housing 31 and is electrically connected to the energy storage component 70. When an external power source is electrically connected to the interface 90, the energy storage component 70 is configured to be charged by the external power source through the interface 90.

[0072] Specifically, the energy storage component 70 is a structure in the charging case 100 used for storing and releasing electrical energy. The energy storage component 70 can be a dry cell battery or a rechargeable battery, etc. Rechargeable batteries include, but are not limited to, lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. This application uses a rechargeable battery as an example for illustration. The energy storage component 70 is installed and used in the housing 31 so that the housing 31 protects the energy storage component 70. The energy storage component 70 is electrically connected to the earphone compartment 33 via an electrical connector, so that the energy storage component 70 can charge the earphones 300 housed in the earphone compartment 33. The electrical connector can be, but is not limited to, wires, flexible circuit boards, and metal sheets, etc.

[0073] Interface 90 is a structure for connecting to an external power source to replenish the energy storage device 70. Interface 90 is located on the outer casing 31, specifically on the side of casing 31 away from the earphone compartment 33. Interface 90 may include, but is not limited to, a USB interface, a Type-C interface, or a Lightning interface. Interface 90 is electrically connected to the energy storage device 70 via an electrical connector, allowing interface 90 to utilize the power provided by the external power source to charge the energy storage device 70 when electrically connected. The electrical connector may be, but is not limited to, wires, flexible circuit boards, and metal sheets. The external power source may be, but is not limited to, the power grid or an energy storage device. Therefore, the charging case 100 can replenish the energy storage device 70 through interface 90, allowing users to carry the charging case 100 to flexibly charge the earphones 300, resulting in a better user experience.

[0074] Please refer to Figures 4 to 6 In some embodiments, the charging case 100 further includes an energy storage component 70 and an interface 90. The energy storage component 70 is housed within a housing 31. The interface 90 is formed on the housing 31 and is electrically connected to the energy storage component 70. When the device to be charged is electrically connected to the interface 90, the energy storage component 70 is configured to charge the device to be charged via the interface 90.

[0075] Specifically, in the above embodiments, the charging box 100 can also be used to charge other devices that need additional power, that is, the charging box 100 can be used as an energy storage device. The interface 90 and the energy storage component 70 are electrically connected via an electrical connector, so that when the interface 90 is electrically connected to the device to be charged, the energy storage component 70 can charge the device through the interface 90. The electrical connector can be, but is not limited to, wires, flexible circuit boards, and metal sheets. Therefore, users can charge devices through the charging box 100. The charging box 100 of this application has richer and more powerful functions and a wider range of application scenarios, resulting in a better user experience.

[0076] In some embodiments, the energy storage component 70 used by the charging case 100 to charge the earphones 300 housed in the earphone compartment 33 is the same energy storage component 70 used by the charging case 100 to charge the device to be charged. In this case, the number of components in the charging case 100 is small, the production cost of the charging case 100 is low, and the space inside the outer shell 31 for accommodating the energy storage component 70 is small, the volume of the outer shell 31 is small, the charging case 100 can be miniaturized, the charging case 100 has good portability, and the user experience is good.

[0077] In some other embodiments, the energy storage component 70 used by the charging case 100 to charge the earphones 300 housed in the earphone compartment 33 is a different energy storage component 70 from the energy storage component 70 used by the charging case 100 to charge the device to be charged. In this case, the charging process of the charging case 100 to charge the earphones 300 and the charging process of the charging case 100 to charge the device to be charged are independent of each other and will not interfere with each other. Therefore, the charging case 100 has high electrical safety and a long service life.

[0078] In some embodiments, the interface 90 of the charging case 100 for charging the earphones 300 housed in the earphone compartment 33 is the same interface 90 used by the charging case 100 for charging the device to be charged. In this case, the number of components in the charging case 100 is small, the production cost of the charging case 100 is low, the number of openings on the outer shell 31 is small, the structural strength of the outer shell 31 is high, the structural strength of the charging case 100 is high, and the charging case 100 has a long service life.

[0079] In some other embodiments, the interface 90 of the charging case 100 for charging the earphones 300 housed in the earphone compartment 33 is a different interface 90 from the interface 90 of the charging case 100 for charging the device to be charged. In this case, the charging process of the charging case 100 for charging the earphones 300 and the charging process of the charging case 100 for charging the device to be charged are independent of each other and will not interfere with each other. Therefore, the charging case 100 has high electrical safety and a long service life.

[0080] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A charging case for charging earphones, characterized in that, include: case; and A charging assembly, positioned opposite a housing in a first direction, includes a housing and an earphone compartment. The housing is connected to the housing and is slidable relative to it in a second direction, perpendicular to the second direction. The housing has a receiving groove, in which at least a portion of the earphone compartment is received. The earphone compartment has a receiving cavity for receiving at least a portion of an earphone. The earphone compartment is connected to the housing and is rotatable relative to the housing about an axis parallel to a third direction, where the first direction, the second direction, and the third direction are mutually perpendicular. When the housing is in a first position relative to the housing, the housing covers the receiving groove, the earphone compartment has a first posture, and the receiving cavity is closed. When the housing is in a second position relative to the housing, the housing opens the receiving groove, the earphone compartment has a second posture, and the receiving cavity is open. The orientation of the receiving cavity in the second posture is different from the orientation of the receiving cavity in the first posture.

2. The charging case according to claim 1, characterized in that, When the outer shell is in a second position relative to the housing, the angle between the orientation of the accommodating cavity and the first direction is within a first preset range; When the outer shell is located in the first position relative to the housing, the second included angle between the orientation of the accommodating cavity and the second direction is within a second preset range; When the outer shell is in the first position relative to the housing, the receiving cavity faces the second direction; when the outer shell is in the second position relative to the housing, the receiving cavity faces the first direction.

3. The charging case according to claim 2, characterized in that, In the third direction, the outer casing is provided with two opposing insertion holes, which communicate with the receiving groove. The earphone case includes two opposing connectors in the third direction, at least a portion of which extends into the insertion hole. When the outer shell slides relative to the housing, the outer shell causes the connectors to rotate relative to the insertion hole. When the outer shell is in the second position relative to the housing, the earphone case rotates to and remains in the second posture.

4. The charging case according to claim 3, characterized in that, The outer casing is provided with two sliding grooves, which are respectively located on the left and right sides of the outer casing in the first direction. Each sliding groove has a insertion hole at its bottom in the first direction. The housing includes two mating parts, which are located on the left and right sides of the housing in the first direction and are respectively housed in the two sliding grooves. When the outer shell slides relative to the housing in the second direction, the mating parts slide in the sliding grooves and can engage with the corresponding connecting parts to drive the connecting parts to rotate relative to the insertion hole.

5. The charging case according to claim 4, characterized in that, The mating component includes a rack, the connecting component includes a gear shaft, the gear shaft includes a connecting shaft and a gear disposed on the connecting shaft, the connecting shaft passes through the insertion hole, and when the outer shell slides relative to the housing in the second direction, the rack meshes with the gear to drive the gear shaft to rotate in the insertion hole.

6. The charging case according to claim 1, characterized in that, The charging assembly further includes two first limiting members, which are disposed on the left and right sides of the side wall opposite to the housing in the first direction; the housing further includes two second limiting members, which are disposed on the left and right sides of the side wall opposite to the housing in the first direction, and the first limiting members cooperate with the second limiting members to guide the sliding of the housing relative to the housing.

7. The charging case according to claim 1, characterized in that, Also includes: The first positioning element is disposed on the side wall opposite to the outer shell of the housing; and The second positioning member is disposed on the side wall opposite to the housing. The second positioning member includes a first sub-positioning member and a second sub-positioning member. When the outer shell is in the first position relative to the housing, the first positioning member and the first sub-positioning member are engaged by at least one of magnetic attraction and engagement. When the outer shell is in the second position relative to the housing, the first positioning member and the second sub-positioning member are engaged by at least one of magnetic attraction and engagement.

8. The charging case according to claim 1, characterized in that, The charging case also includes: An energy storage device, housed within the housing, electrically connected to the earphone compartment and configured to charge the earphones housed within the earphone compartment; and An interface, provided on the housing and electrically connected to the energy storage device, is configured to be charged by the external power source through the interface when an external power source is electrically connected to the interface; and / or, The charging case also includes: Energy storage device, housed within the outer casing; and An interface is provided on the housing and electrically connected to the energy storage device. When the device to be charged is electrically connected to the interface, the energy storage device is configured to charge the device to be charged through the interface.

9. A headphone system, characterized in that, include: The charging case according to any one of claims 1-8; and The earphones, and the charging case for charging the earphones.

10. The headphone system according to claim 9, characterized in that, The headphones are clip-on headphones.

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