Wireless earphone
By incorporating angled conductive terminals and a vertical layout within the wireless earphone charging case, the problem of excessively large charging case size was solved, resulting in a reduction in charging case volume, improved electrical connection stability, and lower costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-03
AI Technical Summary
The existing charging case is too large, making it inconvenient to carry.
By setting the conductive terminals of the earphones and the conductive terminals of the charging case to be tilted relative to each other, the total space occupied by the conductive terminals in their extension directions when they are electrically connected is smaller, and the extension direction of the second conductive terminal is perpendicular to the contact surface between the body and the cover of the charging case, so as to reduce the storage space inside the charging case.
This effectively reduces the size of the charging case while maintaining the stability of the electrical connection and the compatibility of the circuit design within the charging case, thus lowering costs.
Smart Images
Figure CN224083674U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic device technology, and more particularly to a wireless headset. Background Technology
[0002] In related technologies, earphones can be stored in a charging case when the battery is low or the earphones are not in use, so as to facilitate charging and storage.
[0003] However, the current charging case has the problem of being too large. Utility Model Content
[0004] This application provides a wireless earphone to improve the problem of large charging case size in related technologies.
[0005] In a first aspect, embodiments of this application provide a wireless earphone, including an earphone and a charging case. The earphone is provided with a first conductive terminal extending along a first direction. The charging case is provided with a charging slot and a second conductive terminal. The charging slot is used to accommodate the earphone, and the second conductive terminal extends along a second direction and is used to electrically connect with the first conductive terminal. The charging case includes a housing and a cover movably disposed on the housing. The housing has an abutment surface that abuts against the cover. The second direction is perpendicular to the plane containing the abutment surface, and the first direction and the second direction are arranged at an angle.
[0006] In some embodiments, the charging slot has a first surface for contacting the earphones; the charging case has a mounting hole penetrating the first surface; and a second conductive terminal passes through the mounting hole.
[0007] In some embodiments, the angle between the second direction and the plane containing the first surface is an acute angle.
[0008] In some embodiments, the first surface has a reference point located on the central axis of the mounting hole; the angle between the second direction and the tangent plane of the first surface at the reference point is an acute angle.
[0009] In some embodiments, the acute angle is greater than or equal to 45°.
[0010] In some embodiments, the angle between the first direction and the plane containing the first surface is a right angle; or
[0011] The first surface has a reference point located on the central axis of the mounting hole; the angle between the first direction and the tangent plane of the first surface at the reference point is a right angle.
[0012] In some embodiments, the charging slot further includes a second side for contacting the earphones; one end of the second side away from the opening of the charging slot extends to the bottom of the charging slot and connects to one end of the first side away from the opening of the charging slot.
[0013] In some embodiments, the number of earphones is two, and the two earphones are arranged in a mirror-symmetrical manner within the charging case.
[0014] In some embodiments, the number of earphones is two, and the end of the first conductive terminal of one earphone that is away from the corresponding second conductive terminal is deflected toward the end of the first conductive terminal of the other earphone that is away from the corresponding second conductive terminal.
[0015] In some embodiments, the charging box includes a support base and a circuit board, the circuit board and the charging slot are respectively disposed on opposite sides of the support base along the second direction, the second conductive terminal passes through the support base and is electrically connected to the circuit board; the charging box is provided with a plurality of second conductive terminals, and the plurality of second conductive terminals are electrically connected to the same circuit board.
[0016] In the wireless earphones of this embodiment, the extension direction of the second conductive terminal is set at an angle to the extension direction of the first conductive terminal of the earphone. This results in a smaller total space occupied by both the first and second conductive terminals in their extension directions when they are electrically connected. Consequently, the space required to accommodate the earphones in the charging case is smaller, thereby reducing the size of the charging case.
[0017] Furthermore, since the extension direction of the second conductive terminal is perpendicular to the contact surface between the charging case body and the cover, the layout design of the second conductive terminal within the charging case can follow the design in related technologies. In this way, without changing the position of the second conductive terminal within the charging case or the circuit design within the charging case, the total space occupied by the first and second conductive terminals can be reduced, thereby reducing the size of the charging case at a lower cost. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of a wireless earphone according to an embodiment of this application is shown.
[0020] Figure 2 A schematic diagram of the structure of a charging box according to an embodiment of this application is shown.
[0021] Figure 3 A schematic diagram of the structure of an earphone according to an embodiment of this application is shown.
[0022] Figure 4 It shows along Figure 1 A schematic diagram of the cross-sectional structure along the AA direction.
[0023] Figure 5 It shows Figure 4 A magnified view of a section at point B in the middle.
[0024] Figure 6 A cross-sectional structural schematic diagram of a charging box according to an embodiment of this application is shown.
[0025] Figure 7 It shows Figure 6 A magnified view of a section at point C.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Wireless headphones;
[0028] 10. Earphone; 11. First conductive terminal; 12. Main body; 13. Charging unit;
[0029] 20. Charging box; 21. Second conductive terminal; 22. Charging slot; 221. First surface; 2211. Mounting hole; 2212. Central axis; 2213. Reference point; 2214. Cutting plane; 222. Second surface; 23. Box body; 231. Abutting surface; 24. Cover; 25. Support base; 26. Circuit board; 27. Receiving slot;
[0030] X, the first direction; Y, the second direction. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0032] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0033] In related technologies, earphones can be housed in a charging case when the battery is low or the earphones are not in use, facilitating charging and storage. Specifically, the charging case and earphones each have corresponding conductive terminals. When the earphones are placed in the charging case, their conductive terminals come into contact to achieve electrical connection, thereby charging the earphones. When the charging case and earphones are electrically connected, the central axes of their conductive terminals are collinear. While this connection method ensures a stable electrical connection between the charging case and earphones, it also results in a larger space occupied by the charging case along the direction of the conductive terminal's central axis, leading to a larger charging case size.
[0034] To address the aforementioned issues, this application provides a charging case for charging headphones. By setting the conductive terminals of the charging case and the conductive terminals of the headphones to be inclined relative to each other, the total space occupied in the extension direction of both conductive terminals when they are electrically connected is small, thereby reducing the space required to accommodate the headphones inside the charging case and thus reducing the size of the charging case.
[0035] Building upon this, considering that changing the position of the conductive terminals in the charging case would require simultaneous adjustments to other components within the charging case, such as the circuit board, this application further designs the extension direction of the conductive terminals to be perpendicular to the contact surface between the charging case body and the cover. This allows the layout design of the conductive terminals within the charging case to follow the design in related technologies. In this way, without changing the position of the conductive terminals within the charging case or the internal circuit design, the total space occupied by the conductive terminals of the earphones and the charging case can be reduced, thereby reducing the size of the charging case at a lower cost.
[0036] See Figures 1 to 3 One embodiment of this application provides a wireless earphone 1, which includes an earphone 10 and a charging case 20. The charging case 20 is used to charge the earphone 10, for example, to charge one or a pair of earphones 10. Each earphone 10 is provided with a first conductive terminal 11, and the number of first conductive terminals 11 on the same earphone 10 is multiple.
[0037] The charging case 20 is provided with charging slots 22 and second conductive terminals 21. The charging slots 22 are used to accommodate earphones 10, and the number of charging slots 22 corresponds to the number of earphones 10. The second conductive terminals 21 are used to electrically connect with the first conductive terminals 11, and the number of second conductive terminals 21 in the same charging slot 22 is equal to the number of first conductive terminals 11 on the same earphone 10.
[0038] Combination Figure 1 , Figure 4 and Figure 5The first conductive terminal 11 extends along a first direction X, and the second conductive terminal 21 extends along a second direction Y, with the first direction X and the second direction Y forming an angle. In other words, the extension directions of the first conductive terminal 11 and the second conductive terminal 21 are not collinear. Thus, when the first conductive terminal 11 and the second conductive terminal 21 are electrically connected, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 in the first direction X is small, and the total space occupied in the second direction Y is also small. This reduces the space required within the charging case 20 to accommodate the earphone 10, thereby reducing the size of the charging case 20.
[0039] Furthermore, since the extending direction of the second conductive terminal 21 is perpendicular to the contact surface 231 between the body 23 and the cover 24 of the charging case 20, the layout design of the second conductive terminal 21 within the charging case 20 can follow the design in related technologies. Thus, without changing the position of the second conductive terminal 21 within the charging case 20 or the circuit design within the charging case 20, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced, thereby reducing the size of the charging case 20 at a lower cost.
[0040] Continue reading Figure 1 , Figure 4 and Figure 5 In some embodiments, the first conductive terminal 11 extends along a first direction X, and the second conductive terminal 21 extends along a second direction Y, with an acute angle between the first direction X and the second direction Y. In other words, the extension direction of the first conductive terminal 11 is not collinear with and not perpendicular to the extension direction of the second conductive terminal 21. Thus, when the first conductive terminal 11 and the second conductive terminal 21 are electrically connected, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 in the first direction X is small, the total space occupied in the second direction Y is also small, and the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 in the direction perpendicular to the first direction X or the second direction Y is also small. This results in a smaller space required in the charging case 20 to accommodate the earphone 10, thereby reducing the volume of the charging case 20.
[0041] Combination Figures 4 to 7 In some embodiments, the charging slot 22 has a first surface 221 for contacting the earphone 10. The charging case 20 has a mounting hole 2211 penetrating the first surface 221, through which the second conductive terminal 21 passes. Therefore, when the earphone 10 is placed in the charging slot 22 for charging, the first conductive terminal 11 of the earphone 10 contacts and conducts electricity with the second conductive terminal 21 of the charging case 20. The first surface 221 of the charging slot 22 provides support for the earphone 10, thereby ensuring a stable conductive state between the first conductive terminal 11 and the second conductive terminal 21.
[0042] Optionally, the first surface 221 can be a flat surface or a curved surface. Specifically, it can be selected according to the shape of the side surface of the earphone 10 facing the bottom of the charging slot 22, so as to increase the supporting area of the first surface 221 for the earphone 10.
[0043] Optionally, the first surface 221 is a plane, and the angle between the second direction Y and the plane containing the first surface 221 is an acute angle, that is, the angle between the extension direction of the second conductive terminal 21 and the plane containing the first surface 221 is an acute angle. Based on this, since the angle between the extension direction of the second conductive terminal 21 and the plane containing the first surface 221 used to support the earphone 10 is an acute angle, even if the extension direction of the second conductive terminal 21 remains fixed or changes only slightly, by adjusting the orientation of the first surface 221, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced while ensuring that the first surface 221 abuts against the earphone 10. Thus, without changing the position of the second conductive terminal 21 within the charging case 20 or the circuit design within the charging case 20, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced, thereby reducing the size of the charging case 20 at a lower cost.
[0044] Optionally, the first surface 221 is a curved surface, and the first surface 221 has a reference point 2213 located on the central axis 2212 of the mounting hole 2211. The angle between the second direction Y and the tangent plane 2214 of the first surface 221 at the reference point 2213 is an acute angle.
[0045] It should be noted that reference point 2213 is a reference datum defined for the convenience of describing the position of the tangent plane 2214. Specifically, when a reference line passes through a reference surface, there is an intersection point between the reference line and the reference surface. Corresponding to this embodiment, the central axis 2212 of the mounting hole 2211 is the reference line, the first surface 221 is penetrated by the mounting hole 2211 to form a hollow area, the surface formed after the hollow area of the first surface 221 is completed is the reference surface, and the intersection point of the reference line and the reference surface is the reference point 2213 of this embodiment.
[0046] Based on this, similar to the case where the first surface 221 is planar, when the extension direction of the second conductive terminal 21 remains fixed or changes only slightly, by adjusting the orientation of the first surface 221, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced while ensuring that the first surface 221 abuts against the earphone 10. Thus, without changing the position of the second conductive terminal 21 within the charging case 20 or the circuit design within the charging case 20, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced, thereby reducing the size of the charging case 20 at a lower cost.
[0047] Optionally, the first surface 221 is a plane, and the angle between the second direction Y and the plane containing the first surface 221 is an acute angle greater than or equal to 45°, such as 50°, 60° or 70°.
[0048] It is understandable that when the angle between the second direction Y and the plane where the first surface 221 is located is large, the angle between the second direction Y and the first direction X is small, that is, the angle between the extension directions of the first conductive terminal 11 and the second conductive terminal 21 is small. At this time, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 in the second direction Y is large.
[0049] Furthermore, taking the charging case 20 placed horizontally with the second direction Y parallel to the vertical direction as an example, when the angle between the second direction Y and the plane where the first surface 221 is located is large, the tilt of the first surface 221 relative to the horizontal direction is low, which provides better support for the earphone 10 and makes charging more stable.
[0050] Based on this, this embodiment takes into account both the volume of the charging box 20 and the charging stability, and sets the included angle to an acute angle greater than or equal to 45°, which reduces the volume of the charging box 20 while also ensuring charging stability.
[0051] Optionally, the first surface 221 is curved, and the angle between the second direction Y and the tangent plane 2214 of the first surface 221 at the reference point 2213 is an acute angle greater than or equal to 45°, such as 50°, 60° or 70°. In this way, the size of the charging case 20 is reduced while ensuring charging stability.
[0052] Optionally, the charging case 20 includes a case body 23 and a cover 24, with the cover 24 rotatably connected to the case body 23. When the cover 24 is closed to the case body 23, a receiving space is formed between the cover 24 and the case body 23, thereby accommodating the earphones 10 and protecting the earphones 10.
[0053] See Figure 2 and Figure 3 Optionally, the charging case 20 also includes a receiving slot 27, which communicates with the charging slot 22. The earphone 10 has a connected main body 12 and a charging part 13. The main body 12 is received in the receiving slot 27, and the charging part 13 is received in the charging slot 22. A first conductive terminal 11 is provided on the charging part 13. Furthermore, the shape of the receiving slot 27 is adapted to the shape of the main body 12. In this way, during the charging process of the charging case 20 charging the earphone 10, the main body 12 can be stably placed in a specific position, avoiding displacement of the earphone 10 within the charging case 20 due to the weight of the main body 12, which would affect the electrical connection between the earphone 10 and the charging case 20.
[0054] Combination Figures 4 to 7In some embodiments, the first surface 221 is a plane, and the angle between the first direction X and the plane where the first surface 221 is located is a right angle, that is, the angle between the extension direction of the first conductive terminal 11 and the plane where the first surface 221 is located is a right angle.
[0055] In some other embodiments, the first surface 221 is a curved surface, and the angle between the first direction X and the tangent plane 2214 of the first surface 221 at the reference point 2213 is a right angle.
[0056] It is understood that in the relevant technology, the conductive terminals of the earphone 10 and the conductive terminals of the charging case 20 extend in the same direction. When the conductive terminals of the earphone 10 and the conductive terminals of the charging case 20 are electrically connected, there is a contact surface between the earphone 10 and the charging case 20. The area on the contact surface where the conductive terminals of the charging case 20 are located is perpendicular to the extension direction of the conductive terminals.
[0057] In this embodiment, by setting the angle between the extension direction of the first conductive terminal 11 and the plane where the first surface 221 is located to be a right angle, or by setting the angle between the extension direction of the first conductive terminal 11 and the tangent plane 2214 of the first surface 221 at the reference point 2213 to be a right angle, the first conductive terminal 11 of the earphone 10 and the second conductive terminal 21 of the charging case 20 are inclined to each other to reduce the total space occupied. At the same time, the structure of the first conductive terminal 11 of the earphone 10 can follow the structure of the conductive terminal of the earphone 10 in the related technology, thereby reducing the volume of the charging case 20 without changing the overall structure of the earphone 10.
[0058] In some embodiments, the charging slot 22 is further provided with a second surface 222 for contacting the earphone 10. Thus, the second surface 222 and the first surface 221 simultaneously contact the earphone 10, increasing the contact area and making the contact between the earphone 10 and the charging slot 22 more stable. This makes the electrical connection between the first conductive terminal 11 of the earphone 10 and the second conductive terminal 21 of the charging case 20 more stable.
[0059] Optionally, one end of the second surface 222 away from the opening of the charging slot 22 extends to the bottom of the charging slot 22 and connects with one end of the first surface 221 away from the opening of the charging slot 22. That is, the boundary line between the first surface 221 and the second surface 222 is located in the recess of the charging slot 22, for example, at the lowest point of the charging slot 22. In other words, the first surface 221 and the second surface 222 combine to form a concave structure with a central recess.
[0060] When the earphone 10 is placed in the charging slot 22 for charging, if the contact area between the first conductive terminal 11 and the second conductive terminal 21 is located on the inclined first surface 221, the side of the earphone 10 facing the first surface 221 is supported by the first surface 221, while the side facing away from the first surface 221 is not supported. This could cause the earphone 10 to tip over to the side facing away from the first surface 221 under its own weight. In this embodiment, the second surface 222, which is connected to the first surface 221, supports the side of the earphone 10 facing away from the first surface 221, preventing the earphone 10 from tipping over and improving the stability of the earphone 10 during the charging process.
[0061] Optionally, the second surface 222 can be a plane or a curved surface, depending on the shape of the corresponding area of the earphone 10.
[0062] In some embodiments, the number of earphones 10 is two, and the two earphones 10 are arranged in a mirror-symmetrical manner within the charging case 20. Thus, the charging case 20 can simultaneously hold and charge both earphones 10. Furthermore, because the two earphones 10 within the charging case 20 are mirror-symmetrical, the charging case 20 can simultaneously hold and charge one pair of earphones 10.
[0063] In some embodiments, there are two earphones 10, with the end of the first conductive terminal 11 of one earphone 10 away from the corresponding second conductive terminal 21 deflected toward the end of the first conductive terminal 11 of the other earphone 10 away from the corresponding second conductive terminal 21. In other words, when the earphones 10 are stored in the charging case 20, the first conductive terminals 11 of the two earphones 10 are close to each other. In this way, the charging case 20 can be adaptively constructed to be thicker in the middle and thinner at the edges according to the shape of the earphones 10, thereby improving the comfort of the user when taking out and putting in the charging case 20.
[0064] See Figure 4 and Figure 5 In some embodiments, the charging case 20 includes a support base 25 and a circuit board 26. The circuit board 26 and the charging slot 22 are respectively disposed on opposite sides of the support base 25 along the second direction Y. A second conductive terminal 21 passes through the support base 25 and is electrically connected to the circuit board 26. The support base 25 provides support for the earphone 10 and separates the earphone 10 from the circuit board 26, thus protecting the circuit board 26. Furthermore, the charging case 20 is provided with multiple second conductive terminals 21, which are electrically connected to the same circuit board 26. This simplifies the circuit structure, saves on the material costs of connectors, flexible circuit boards 26, or wires required for connecting the circuit board 26 to the main board of the charging case 20, and saves on the labor costs incurred in assembling the circuit board 26.
[0065] See Figures 2 to 5In one exemplary embodiment, the wireless earphone 1 includes a charging case 20 and two earphones 10. The charging case 20 has two charging slots 22, each corresponding to one of the two earphones 10. Each earphone 10 has two first conductive terminals 11 spaced apart, both extending along a first direction X. Each charging slot 22 has two second conductive terminals 21 corresponding to it, which are used for electrical connection with the two first conductive terminals 11 of the earphone 10.
[0066] The first conductive terminal 11 extends along a first direction X, and the second conductive terminal 21 extends along a second direction Y, with the first direction X and the second direction Y forming an angle. In other words, the extension directions of the first conductive terminal 11 and the second conductive terminal 21 are not collinear. Thus, when the first conductive terminal 11 and the second conductive terminal 21 are electrically connected, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 in the first direction X and the second direction Y is relatively small. This reduces the space required within the charging case 20 to accommodate the earphone 10, thereby reducing the size of the charging case 20.
[0067] Furthermore, since the extending direction of the second conductive terminal 21 is perpendicular to the contact surface 231 between the body 23 and the cover 24 of the charging case 20, the layout design of the second conductive terminal 21 within the charging case 20 can follow the design in related technologies. Thus, without changing the position of the second conductive terminal 21 within the charging case 20 or the circuit design within the charging case 20, the total space occupied by the first conductive terminal 11 and the second conductive terminal 21 can be reduced, thereby reducing the size of the charging case 20 at a lower cost.
[0068] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" means at least two, for example, two, three, four, etc. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.
[0069] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.
Claims
1. A wireless earphone, characterized by, The earphone comprises a first conductive terminal extending in a first direction. The charging box comprises a charging slot for accommodating the earphone and a second conductive terminal extending in a second direction for electrically connecting with the first conductive terminal. The charging box comprises a box body and a cover body movably arranged on the box body, the box body has an abutting surface abutting with the cover body, the second direction is perpendicular to the plane where the abutting surface is located, and the first direction and the second direction are arranged at an angle. The charging slot is provided with a first surface for abutting with the earphone.
2. The wireless earpiece of claim 1, wherein, The charging box is provided with a mounting hole penetrating the first surface. The second conductive terminal penetrates the mounting hole. The angle between the second direction and the plane where the first surface is located is an acute angle.
3. The wireless earpiece of claim 2, wherein, The first surface has a reference point located on the central axis of the mounting hole.
4. The wireless earpiece of claim 2, wherein, The angle between the second direction and the tangent plane of the first surface at the reference point is an acute angle. The acute angle is greater than or equal to 45°.
5. The wireless earpiece of claim 3 or 4, wherein, The angle between the first direction and the plane where the first surface is located is a right angle; or 6. The wireless earpiece of Claim 2, wherein, The first surface has a reference point located on the central axis of the mounting hole, and the angle between the first direction and the tangent plane of the first surface at the reference point is a right angle. The charging slot is further provided with a second surface for abutting with the earphone.
7. The wireless earpiece of claim 2, wherein, The end of the second surface away from the slot opening of the charging slot extends to the bottom of the charging slot and is connected with the end of the first surface away from the slot opening of the charging slot. The number of earphones is two, and the two earphones are arranged in mirror symmetry in the charging box.
8. The wireless earpiece of claim 1, wherein, The number of earphones is two, wherein the end of the first conductive terminal of one of the earphones away from the corresponding second conductive terminal is deflected towards the end of the first conductive terminal of the other earphone away from the corresponding second conductive terminal.
9. The wireless earpiece of claim 1, wherein, The charging box comprises a support seat and a circuit board, the circuit board and the charging slot are respectively arranged on opposite sides of the support seat along the second direction, and the second conductive terminal penetrates the support seat and is electrically connected with the circuit board.
10. The wireless earpiece of claim 1, wherein, The charging box is provided with a plurality of second conductive terminals, and the plurality of second conductive terminals are electrically connected with the same circuit board.