Charging device and earphone assembly

Abstract

The embodiment of the utility model discloses a charging device and an earphone assembly. A bearing part is provided with a limiting groove and an earphone groove which are communicated with each other. A cantilever, a first deformation part and a second deformation part are sequentially arranged on the elastic conductor, and an electric contact surface is arranged on the side, away from the limiting groove, of the cantilever. Therefore, on one hand, the second deformation part can drive the cantilever to be away from the earphone groove, and the limiting groove is used as an avoiding space for the earphone. On the other hand, when the elastic conductor is not compressed, the electric contact surface is located on the inner side of the earphone groove, and the elastic conductor is inclined towards the bottom of the earphone groove. And the downward pressure generated by the earphone can be converted into the driving force acting on the cantilever. Meanwhile, part of the first deformation part stretches and deforms to drive the electric contact surface to move towards the socket, so that the electric contact surface can abut against the contact. And on the other hand, the first deformation part and the second deformation part respectively generate stretching deformation and bending deformation, so that the service life of the elastic conductor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a charging device and an earphone assembly. Background Art

[0002] The conductive sheet set in the charging seat can be used to contact the contacts of 3C products to achieve electrical connection. Taking Bluetooth headphones as an example, the contacts of the headphones will push the conductive sheet to cause it to deform elastically. In order to ensure the stability of the connection between the contacts and the conductive sheet, the conductive sheet needs to produce sufficient deformation, but this also increases the elastic force exerted by the conductive sheet on the headphones. How to ensure the stable connection between the conductive sheet and the headphone contacts and limit the force exerted by the conductive sheet on the headphones has become a problem that needs to be solved. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a charging device, which, under the drive of the cantilever, reduces and increases the bending amplitudes of the first deformation part and the second deformation part respectively, thereby increasing the overall deformation of the elastic conductor, while avoiding excessive elastic force generated by the elastic conductor, thereby improving the service life of the elastic conductor.

[0004] According to a first aspect of an embodiment of the utility model, a charging device is provided, the charging device comprising:

[0005] The bearing part has an earphone slot and a limiting slot connected to the earphone slot, and the earphone slot has a socket; and

[0006] An elastic conductor, the elastic conductor is bent and extended and is provided with a cantilever, a first deformable portion, and a second deformable portion in sequence in the extending direction, the cantilever has an electrical contact surface, the electrical contact surface is located on a side of the cantilever away from the limiting groove, an angle is formed between the cantilever and the first deformable portion, and an angle is formed between the first deformable portion and the second deformable portion;

[0007] Wherein, when the elastic conductor is in a free state, the cantilever extends from the limiting groove into the earphone groove and tilts toward the bottom of the earphone groove;

[0008] The cantilever drives the elastic conductor to deform, the second deformed part bends and deforms and drives the electrical contact surface to move toward the limiting groove, and the bending amplitude of part of the first deformed part is reduced, and one end of the cantilever where the electrical contact surface is set moves toward the socket.

[0009] Further, the inner wall of the limiting groove includes a limiting surface, and the second deformation portion is arranged at the end of the cantilever where the electrical contact surface of the limiting groove is located;

[0010] The elastic conductor is bent and deformed and abuts against the limiting surface, and one end of the cantilever with the electrical contact surface is lifted toward the socket at a predetermined angle.

[0011] Further, the limiting surface includes a first limiting surface, which is located on the side of the limiting groove close to the earphone slot and extends along the depth direction of the earphone slot;

[0012] The second deformation part includes a first bending section, which bends towards the first limiting surface. The second deformation part is located on the side of the first deformation part away from the socket;

[0013] The cantilever compresses the first bending section to bend and deform. The first bending section abuts against the first limiting surface and drives the first deformation part to tilt away from the earphone slot.

[0014] Further, the first deformation part includes a second bending section. In the extending direction of the elastic conductive body, the second bending section is located between the first bending section and the cantilever, and the second bending section bends away from the earphone slot;

[0015] The first bending section bends and deforms and drives the second bending section to tilt away from the earphone slot. The second bending section stretches and deforms, driving the cantilever close to the socket.

[0016] Further, the limiting surface further includes a second limiting surface, which is arranged at an interval from the first limiting surface and faces the earphone slot;

[0017] The first deformation part further includes a third bending section. In the extending direction of the elastic conductive body, the third bending section is located between the cantilever and the second bending section, and the cantilever extends from the third bending section to the earphone slot;

[0018] The second bending section stretches and deforms until the third bending section abuts against the second limiting surface, and the first bending section is in an abutting state with the first limiting surface.

[0019] Further, the limiting surface further includes a third limiting surface, which is opposite to the orientation of the socket and is located on the side of the limiting groove close to the socket. The third bending section bends towards the third limiting surface;

[0020] The tilting amplitude of the cantilever is within a predetermined range. The first bending section and the second bending section stretch and deform to drive the third bending section to abut against the third limiting surface and slide towards the second limiting surface.

[0021] Further, the second limiting surface extends along the depth direction of the earphone slot, and part of the second limiting surface is arranged opposite to the first limiting surface;

[0022] The second deformation part further includes a first connecting section, which is connected between the first bending section and the second bending section;

[0023] The first bending section and the second bending section are in an abutting state with the limiting surface, and the first connecting section is located between the first limiting surface and the second limiting surface.

[0024] Further, the charging device further includes a positioning part;

[0025] The second deformation part further includes a second connecting section, a third connecting section, and a fourth bending section connected between the second connecting section and the third connecting section. The first bending section is connected between the first connecting section and the second connecting section. The third connecting section extends from the fourth bending section to the positioning part, and the elastic conductive body is disposed on the bearing part through the positioning part.

[0026] Furthermore, the first deformation part further includes a fifth connecting section. The third bending section is connected between the cantilever and the fifth connecting section, and the fifth connecting section is connected between the third bending section and the second bending section;

[0027] The second bending section drives the cantilever to move through the fifth connecting section, and the third bending section is bent and deformed to drive the cantilever to approach the fifth connecting section.

[0028] Furthermore, the elastic conductive body is in a strip structure. The bending direction of the elastic conductive body is perpendicular to the width direction of the strip structure, and the widths of the first bending section, the second bending section, and the third bending section decrease in sequence.

[0029] Furthermore, the electrical contact surface is located at the end of the cantilever away from the third bending section, and the electrical contact surface is an arc surface;

[0030] The first deformation part further includes a free section. The free section is disposed at one end of the cantilever away from the third bending section and is bent in a direction away from the electrical contact surface;

[0031] The elastic conductive body is in a free state, and the electrical contact surface is bent in a direction away from the second limiting surface.

[0032] Furthermore, the elastic conductive body further includes a fixed part and a feeding end. In the extending direction of the elastic conductive body, the second deformation part is located between the first deformation part and the fixed part, and the feeding end is located at one end of the fixed part away from the second deformation part;

[0033] The charging device further includes a positioning part. The positioning part is an injection molded part. The fixed part is disposed in the positioning part, and the feeding end extends out of the positioning part.

[0034] Furthermore, the fixed part includes:

[0035] Two fifth bending sections and a fourth connecting section connected between the two fifth bending sections. The bending directions of the two fifth bending sections are opposite. The feeding end is disposed at the end of one fifth bending section, and the second deformation part extends from the other fifth bending section to the limiting groove.

[0036] Furthermore, the bearing part further has a positioning recess, and the positioning recess is opposite to the orientation of the earphone slot;

[0037] One side of the positioning part close to the limiting groove is attached to the bottom surface of the positioning recess, and the side far from the limiting groove forms a glue groove with the positioning recess. The feeding end extends from the inner side to the outer side of the glue groove.

[0038] Furthermore, the charging device further includes an adhesive, and the adhesive fills the glue groove.

[0039] Furthermore, the earphone slot has two windows, and the number of limiting grooves is two and they are respectively communicated with the earphone slot through the two windows;

[0040] The number of elastic conductors is two and they respectively extend into the earphone slot through the two windows, and the widths of the two elastic conductors are perpendicular.

[0041] Furthermore, the number of the positioning part, the positioning recess, the limiting groove and the elastic conductor is two, and the two elastic conductors are correspondingly arranged with the two limiting grooves, the two positioning recesses and the two positioning parts at the same time;

[0042] The charging device further includes:

[0043] Two mounting blocks, protruding from the outer side surface of the bearing part, and the two mounting blocks are opposite and arranged at intervals;

[0044] A connecting part, including two contact plates, the two contact plates are respectively arranged on the two mounting blocks and located on the opposite sides of the two mounting blocks, and the two contact plates are respectively electrically connected to the two feeding ends; and

[0045] A feeding part, including two feeding elastic pieces arranged in pairs, the two feeding elastic pieces are arranged between the two contact plates, and the two feeding elastic pieces are respectively electrically lapped with the two contact plates.

[0046] Furthermore, the connecting part further includes two strip conductors, and the strip conductor includes a first connecting end, a second connecting end and an extending part located between the first connecting end and the second connecting end;

[0047] The two extending parts are attached to different areas of the outer side surface of the bearing part, the two first connecting ends are respectively connected to the two contact plates, and the two second connecting ends are respectively electrically connected to the two feeding ends.

[0048] Furthermore, the charging device further includes:

[0049] A plurality of positioning members, respectively protruding from the two mounting blocks, and the positioning member includes a column body and a plurality of flanges, and the plurality of flanges protrude from the side of the column body;

[0050] The first connecting end has a positioning hole, the column body extends into the positioning hole and the plurality of flanges are clamped on the edge of the positioning hole.

[0051] Furthermore, the connecting part further includes a plurality of solder blocks;

[0052] The top of the cured adhesive is flush with the top of the glue groove;

[0053] The second connection end has a connection hole. The second connection end extends from the top edge of the glue groove to the top of the adhesive, and the connection hole is sleeved on the feeding end. The second connection end is fixedly connected to the adhesive and the feeding end through a solder block, and the second connection end is electrically connected to the feeding end.

[0054] Furthermore, the feeding part further includes:

[0055] A circuit board, including a plurality of feeding areas, and feeding elastic pieces are erected on the feeding areas;

[0056] The feeding elastic piece includes a sixth bending section. The sixth bending section has an abutting surface, and the two sixth bending sections bend in directions away from each other;

[0057] In the free state of the feeding elastic piece, the distance between the two abutting surfaces is greater than the distance between the two contact plates. The two abutting surfaces are respectively in an abutting state with the two contact plates, and the two feeding elastic pieces bend and deform towards the opposite sides.

[0058] Furthermore, the mounting block has a first mounting surface, a second mounting surface, and an edge rib located between the first mounting surface and the second mounting surface. The second mounting surface faces the circuit board;

[0059] The first connection end is arranged on the second mounting surface, and part of the contact plate is arranged on the first mounting surface. The edge of the contact plate wraps at least part of the edge rib and extends to the first connection end;

[0060] The sixth bending section further includes a guiding inclined surface. The guiding inclined surface is located on the side of the abutting surface away from the circuit board, and in the free state of the feeding elastic piece, the distance between the two guiding inclined surfaces is the same as the distance between the two edge ribs.

[0061] In a second aspect, an embodiment of the present invention further provides a headphone assembly, and the headphone assembly includes:

[0062] The charging device according to the above first aspect; and

[0063] A headphone, including a contact. The headphone bends and deforms by compressing an elastic conductor through an electrical contact surface until the headphone is arranged in a headphone slot, and the contact is in an abutting state with the electrical contact surface.

[0064] The charging device and the earphone assembly of the embodiment of the utility model are provided with a mutually connected limit groove and earphone groove on the bearing part. A cantilever, a first deformation part and a second deformation part are sequentially arranged on the elastic conductor, and an electrical contact surface is arranged on the side of the cantilever away from the limit groove. Therefore, on the one hand, the second deformation part can drive the cantilever away from the earphone groove, and use the limit groove to make room for the earphone to avoid. On the other hand, when the elastic conductor is not compressed, the electrical contact surface is located on the inner side of the earphone groove, and the elastic conductor is inclined to the bottom of the earphone groove. It helps to convert the downward pressure generated by the earphone into a driving force acting on the cantilever. At the same time, part of the first deformation part is stretched and deformed to drive the electrical contact surface to move toward the socket, thereby raising the position of the electrical contact surface so that the electrical contact surface can abut against the contact point. On the other hand, the first deformation part and the second deformation part respectively generate stretching deformation and bending deformation, and on the premise of increasing the deformation amplitude of the elastic conductor, the elastic force applied by the elastic conductor to the earphone is limited, thereby improving the service life of the elastic conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0066] Figure 1 It is a structural schematic diagram of a charging base in the related art;

[0067] Figure 2 It is an exploded schematic diagram of a charging stand in the related art;

[0068] Figure 3 It is a schematic diagram of the structure of one side of the charging device of an embodiment of the utility model;

[0069] Figure 4 It is a structural schematic diagram of another side of the charging device of an embodiment of the utility model;

[0070] Figure 5 is a cross-sectional schematic diagram of a charging device according to an embodiment of the utility model;

[0071] Figure 6 It is a partial schematic diagram of a charging device according to an embodiment of the utility model;

[0072] Figure 7 It is a partial schematic diagram of the bearing part of an embodiment of the utility model;

[0073] Figure 8 It is a schematic structural diagram of an elastic conductor, a positioning portion and an adhesive according to an embodiment of the utility model;

[0074] Figure 9 It is a schematic structural diagram of an elastic conductor and a positioning portion of an embodiment of the utility model;

[0075] Figure 10 It is a schematic structural diagram of the elastic conductor according to an embodiment of the present utility model;

[0076] Figure 11 It is a schematic structural diagram of the earphone according to an embodiment of the present utility model;

[0077] Figure 12 It is a schematic structural diagram of the elastic conductor in some embodiments according to an embodiment of the present utility model;

[0078] Figure 13 It is a schematic structural diagram of the elastic conductor in some other embodiments according to an embodiment of the present utility model;

[0079] Figure 14 It is a schematic structural diagram of the elastic conductor in yet some other embodiments according to an embodiment of the present utility model;

[0080] Figure 15 It is a schematic structural diagram of the elastic conductor in still some other embodiments according to an embodiment of the present utility model;

[0081] Figure 16 It is a schematic structural diagram of the bearing part and the accommodation box in some embodiments according to an embodiment of the present utility model;

[0082] Figure 17 It is a schematic structural diagram of the bearing part and the accommodation box in some other embodiments according to an embodiment of the present utility model;

[0083] Figure 18 It is an exploded schematic diagram of the charging device according to an embodiment of the present utility model;

[0084] Figure 19 It is a schematic structural diagram of one side of the connecting part and the bearing part according to an embodiment of the present utility model;

[0085] Figure 20 It is a schematic structural diagram of the other side of the connecting part and the bearing part according to an embodiment of the present utility model;

[0086] Figure 21 It is a partial schematic diagram of the first connecting end and the mounting block according to an embodiment of the present utility model;

[0087] Figure 22 It is a schematic diagram of the positional relationship between the contact plate and the feeding elastic piece in some embodiments according to an embodiment of the present utility model;

[0088] Figure 23 It is a schematic diagram of the positional relationship between the contact plate and the feeding elastic piece in some other embodiments according to an embodiment of the present utility model;

[0089] Figure 24 It is a schematic cross-sectional view of the bearing part according to an embodiment of the present utility model;

[0090] Figure 25 It is a schematic diagram of the positional relationship between the bearing part and the circuit board in the embodiment of the present utility model.

[0091] Explanation of the reference numerals in the drawings:

[0092] 1 - Elastic conductor;

[0093] 11 - First deformation part;

[0094] 12 - Second deformation part;

[0095] 13 - Cantilever; 131 - Electrical contact surface;

[0096] 14 - Free segment;

[0097] 15 - Fixed part; 151 - Fixed through hole;

[0098] 16 - Feeding end;

[0099] 2 - Bearing part;

[0100] 21 - Limiting groove;

[0101] 22 - Earphone slot; 221 - Socket; 222 - Window;

[0102] 23 - Positioning depression; 231 - Glue groove; 232 - Connection window;

[0103] 251 - First housing; 2511 - First side wall; 2512 - First end wall;

[0104] 252 - Second housing; 2521 - Second side wall; 2522 - Second end wall;

[0105] 2531 - First part; 2532 - Second part;

[0106] 26 - Accommodating box; 261 - Inner lining; 262 - Bottom of the basin; 263 - Flexible circuit board;

[0107] 3 - Limiting surface;

[0108] 31 - First limiting surface; 32 - Second limiting surface; 33 - Third limiting surface;

[0109] 4 - Positioning part;

[0110] 5 - Adhesive;

[0111] 6 - Mounting block;

[0112] 61 - Positioning member; 611 - Cylinder; 612 - Flange; 62 - First mounting surface; 63 - Second mounting surface; 64 - Edge; 65 - Groove;

[0113] 7 - Connection part;

[0114] 71 - Contact plate; 72 - Ribbon conductor; 721 - First connection end; 7211 - Positioning hole; 722 - Second connection end; 7221 - Connection hole; 723 - Extension part; 7231 - First section; 7232 - Second section; 73 - Solder block;

[0115] 8 - Feeding part;

[0116] 81 - Feeding spring piece; 811 - Sixth bending section; 8111 - Contact surface; 8112 - Guide inclined plane; 82 - Circuit board; 821 - Feeding area;

[0117] A1 - First bending section; A2 - Second bending section; A3 - Third bending section; A4 - Fourth bending section; A5 - Fifth bending section;

[0118] B1 - First connection section; B2 - Second connection section; B3 - Third connection section; B4 - Fourth connection section; B5 - Fifth connection section;

[0119] C - Earphone;

[0120] C1 - Contact point; C2 - Earphone head; C3 - Ear handle part; C31 - Peripheral side surface; C32 - Bottom side surface; C41 - First position; C42 - Second position;

[0121] D1 - Base body; D11 - Receiving groove; D12 - Installation cavity; D2 - Conductive spring piece; D3 - Positioning body; D4 - Fixing piece; D5 - Sealing piece. Detailed implementation mode

[0122] The following describes the present utility model based on embodiments, but the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific detailed parts are described in detail. Those skilled in the art can fully understand the present utility model without the description of these detailed parts. In order to avoid obscuring the essence of the present utility model, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0123] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0124] Unless the context clearly requires otherwise, the words such as "including", "comprising" and the like in the whole application document should be interpreted as the meaning of including rather than exclusive or exhaustive meaning; that is, the meaning of "including but not limited to".

[0125] In the description of the present utility model, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0126] Unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0127] For ease of explanation, spatially relative terms such as "inner", "outer", "below", "beneath", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" that other element or feature. Thus, the exemplary term "below" can encompass both an orientation above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0128] Figure 1 and Figure 2 are schematic structural diagrams of a charging base in the related art. The charging base in the figure includes a base body D1, a conductive elastic sheet D2, a positioning body D3, a fixing member D4, and a plugging member D5. The base body D1 is provided with a receiving groove D11 for accommodating the earphone C and an installation cavity D12 for arranging the conductive elastic sheet D2. The installation cavity D12 has a first port and a second port, and the first port and the second port face the upper and lower directions of the base body D1 respectively. During the installation of the charging base, it is necessary to first fix the conductive elastic sheet D2 and the positioning body D3 together, and then insert the conductive elastic sheet D2 and the positioning body D3 into the installation cavity D12 from the second port (such as Figure 2As shown by the arrow in the figure). Flip the seat body D1 so that the first port faces upward, and use the fixing member D4 to fixedly connect the conductive elastic sheet D2 and the positioning body D3 to the first port. Finally, flip the seat body D1 again, use the sealing member D5 to seal the second port, and fix it with the fixing member D4 at the same time. After the conductive elastic sheet D2 is installed, the end of the conductive elastic sheet D2 away from the positioning body D3 will abut against the seat body D1 to prevent the conductive elastic sheet D2 from bending excessively towards the receiving groove D11. The fixing member D4 is an adhesive.

[0129] In this embodiment, the conductive elastic sheet D2 extends from the first port to the second port, which makes the occupied volume of the installation cavity D12 too large and increases the volume of the seat body D1. At the same time, in order to facilitate the installation of the conductive elastic sheet D2 in the installation cavity D12, a first port and a second port are provided on the installation cavity D12, and thus the first port and the second port need to be sealed respectively.

[0130] Figure 3 and Figure 4 are the structural schematic diagrams of the charging device of this embodiment. Figure 5 is the sectional schematic diagram of the charging device of this embodiment.

[0131] In some embodiments, as Figures 3 - 5 shown, the charging device in this embodiment includes two elastic conductors 1, and the elastic conductors 1 are bent, and the ends of the elastic conductors 1 extend into the earphone slot 22.

[0132] Specifically, in this embodiment, the earphone slot 22 is used to accommodate the earphone C. When the earphone C is disposed in the earphone slot 22, the contact C1 of the earphone C can contact the elastic conductor 1, and thus the earphone C can be charged through the charging device. The earphone C can be a Bluetooth earphone C.

[0133] Figure 6 is the partial schematic diagram of the charging device of this embodiment. Figure 7 is the partial schematic diagram of the bearing part 2 of this embodiment. Figure 8 is the structural schematic diagram of the elastic conductor 1, the positioning part 4 and the adhesive 5 of this embodiment. Figure 9 is the structural schematic diagram of the elastic conductor 1 and the positioning part 4 of this embodiment.

[0134] In some embodiments, as Figures 6 - 9 shown, the bearing part 2 and the positioning part 4 in this embodiment can be made by injection molding process. The materials of the bearing part 2 and the positioning part 4 can be high molecular compounds. For example, polyethylene, polyvinyl chloride, resin or rubber. The rubber can be natural rubber (NR) or nitrile rubber (NBR) and other materials. When the elastic conductor 1 is disposed on the bearing part 2 through the positioning part 4, the bearing part 2 and the positioning part 4 can play a good insulation role.

[0135] Figure 10 It is a schematic structural diagram of the elastic conductor 1 of this embodiment.

[0136] In some embodiments, such as Figure 10 shown, the material of the elastic conductor 1 in this embodiment can be metal, such as copper, iron, copper alloy, aluminum alloy and other materials. The elastic conductor 1 sequentially includes a free section 14, a cantilever 13, a first deformation part 11, a second deformation part 12, a fixed part 15 and a feeding end 16 in the extending direction. Current can be transmitted from the feeding end 16 to the contact C1 of the earphone C through the electrical contact surface 131.

[0137] Figure 11 It is a schematic structural diagram of the earphone C of this embodiment.

[0138] In some embodiments, such as Figure 11 shown, specifically, the earphone C in this embodiment includes an earstem C3 and an earphone head C2, and the earphone head C2 is provided with a sound outlet. The earstem C3 is connected to the earphone head C2. The contact C1 is arranged on the earstem C3, so that when the earstem C3 is inserted into the earphone slot 22, the contact C1 on the side of the earstem C3 abuts against the elastic conductor 1. The side surface of the earstem C3 is approximately a cylindrical surface, and the bottom surface is approximately a spherical crown.

[0139] Figure 12 , Figure 13 , Figure 14 and Figure 15 are schematic structural diagrams of the elastic conductor 1 in different deformation states. The figure shows a partial contour of the earphone C, that is, the earstem C3 of the earphone C arranged in the earphone slot 22, and the contact C1 is arranged on the earstem C3. Figures 13 - 15 The positions of the first deformation part 11 and the cantilever 13 in the free state are shown by dotted lines in

[0140] Specifically, Figure 12 the earphone C in is inserted into the earphone slot 22, but the earphone C does not contact the elastic conductor 1. In this form, the elastic conductor 1 is in a free state, the cantilever 13 is located in the limiting slot 21 and the earphone slot 22 at the same time, and the cantilever 13 is inclined towards the earphone slot 22. When the bottom of the earstem C3 continues to move downward, the bottom of the earstem C3 will contact the cantilever 13. That is, the first position C41 and the cantilever 13. When the elastic conductor 1 is in the free state, the first bending section A1, the second bending section A2, the third bending section A3, the fourth bending section A4 and the fifth bending section A5 are all in a bent state.

[0141] Figures 12 - 15During the process that the earphone C in [[ ]] enters the earphone slot 22 from the socket 221 until it abuts against the bottom of the earphone slot 22, it will pass through the first stroke and the second stroke respectively.

[0142] In the first stroke (as Figures 11 - 15 shown), the bottom of the earbud C3 (that is, the first position C41, the second position C42, and the area between the first position C41 and the second position C42) contacts the cantilever 13, the inclination amplitude of the cantilever 13 will increase (the angle a5 increases), and at the same time, the cantilever 13 will move along the radial direction of the earphone slot 22 from the earphone slot 22 to the limiting slot 21 and move a certain distance away from the socket 221.

[0143] In the second stroke (as Figure 11 and Figures 14 - 15 shown), as the earphone C continues to move towards the bottom of the earphone slot 22, the end of the cantilever 13 will slide from the second position C42 to the circumferential side surface C31. During this process, the inclination angle of the cantilever 13 will decrease (the angle a5 decreases).

[0144] When the angle a5 decreases to a predetermined range, the earbud C3 will push the cantilever 13, causing the electrical contact surface 131 to lift towards the socket 221 until the electrical contact surface 131 is in electrical contact with the contact C1.

[0145] Optionally, as Figure 12 shown, those skilled in the art can set the angle range between 50 degrees and 75 degrees. Under the pressing action of the earbud C3, the end of the cantilever 13 will move a certain distance towards the bottom of the earphone slot 22, so that the inclination amplitude of the electrical contact surface 131 can be increased to avoid the earphone C.

[0146] Specifically, Figure 12 shows a specific configuration form of the cantilever 13. During the process of the cantilever 13 contacting the earphone C, it will first contact the first position C41. When the earphone C contacts the first position C41 (the elastic conductive body 1 does not deform), the angle a5 between the cantilever 13 and the horizontal direction is 66 degrees. Taking the angle a5 as 66 degrees when the elastic conductive body 1 is in the free state as an example. When the cantilever 13 slides to the second position C42, the angle a5 between the cantilever 13 and the horizontal direction becomes 72 degrees (the angles a1, a2, and a3 decrease). When the cantilever 13 continues to slide from the second position C42 to the circumferential side surface C31, the angle a5 begins to decrease, that is, the inclination amplitude decreases. When the angle a5 decreases to 53 degrees to 45 degrees, under the push of the earphone C, the electrical contact surface 131 of the cantilever 13 will move towards the socket 221.

[0147] In some embodiments, as Figures 3 - 5As shown, the charging device in this embodiment includes an elastic conductor 1 and a carrying portion 2. The carrying portion 2 has an earphone slot 22 and a limiting slot 21 that are connected to each other, and the earphone slot 22 has a socket 221. The ear handle portion C3 can be put into the earphone slot 22 from the socket 221.

[0148] Further reference Figures 9 - 10 As shown, the elastic conductor 1 includes a first deformable portion 11, a second deformable portion 12 and a cantilever 13 in the extension direction. The first deformable portion 11 is connected between the second deformable portion 12 and the cantilever 13, that is, the two ends of the first deformable portion 11 are respectively connected to the second deformable portion 12 and the cantilever 13, and there is an angle between the cantilever 13 and the first deformable portion 11, and there is an angle between the first deformable portion 11 and the second deformable portion 12. At the same time, an electrical contact surface 131 is provided at the end of the cantilever 13. When the earphone C is set in the earphone slot 22, the electrical contact surface 131 is used to contact with the contact C1, thereby realizing the electrical connection between the two. The electrical contact surface 131 is located on the side of the cantilever 13 away from the limiting slot 21.

[0149] At the same time, when the elastic conductor 1 is in a free state, that is, the elastic conductor 1 is not in contact with the earphone C, the electrical contact surface 131 is located in the earphone slot 22 and one end of the cantilever 13 where the electrical contact surface 131 is arranged is inclined toward the bottom of the earphone slot 22 .

[0150] Further reference Figures 13 - 14 As shown, the elastic conductor 1 is configured so that when the cantilever 13 drives the elastic conductor 1 to deform elastically, the second deformation portion 12 bends and deforms to drive the cantilever 13 to move away from the earphone slot 22, that is, to drive the electrical contact surface 131 to move toward the limiting slot 21.

[0151] Specifically, in this embodiment, the bottom of the earphone C applies a thrust to the electrical contact surface 131, driving the cantilever 13 to move. The second deformable portion 12 is elastically bent and deformed, so that the second deformable portion 12 is shortened in the height direction of the charging device, so that the second deformable portion 12 can drive the first deformable portion 11 to move toward the bottom of the charging device, and then the cantilever 13 can avoid the earphone C.

[0152] Preferably, under the push of the earphone C, part of the first deformable portion 11 also undergoes elastic bending deformation, so that the first deformable portion 11 can deform together with the second deformable portion 12 , thereby increasing the deformation amplitude of the elastic conductor 1 .

[0153] In the above process, the end of the cantilever 13 will gradually slide from the bottom surface of the ear handle portion C3 to the side surface (such as Figures 13 - 14As shown, in this form, when the inclination angle of the cantilever 13 is reduced to a predetermined range (for example, from 53 degrees to 45 degrees), part of the first deformation part 11 extends and deforms, that is, the bending amplitude of part of the first deformation part 11 decreases, thereby driving the electrical contact surface 131 to move towards the socket 221 and finally abutting against the contact C1.

[0154] Specifically, in this embodiment, the cantilever 13 moves from the bottom of the ear handle part C3 to the side of the ear handle part C3 (as shown by the distance L1 in Figure 15 ), such that the cantilever 13 is located on the side of the ear handle part C3. In this form, the second deformation part 12 can extend and raise the position of the electrical contact surface 131 (as shown by the distance L2 in Figure 16 ), such that the electrical contact surface 131 abuts against the contact C1.

[0155] In summary, for the charging device in this embodiment, a limiting groove 21 and a headphone slot 22 that communicate with each other are provided in the bearing part 2. A cantilever 13, a first deformation part 11, and a second deformation part 12 are sequentially provided on the elastic conductor 1, and an electrical contact surface 131 is provided on the side of the cantilever 13 away from the limiting groove 21. Thus, on the one hand, the second deformation part 12 can drive the cantilever 13 away from the headphone slot 22 and use the limiting groove 21 to provide a clearance space for the headphone C. On the other hand, when the elastic conductor 1 is not compressed, the electrical contact surface 131 is located inside the headphone slot 22, and the elastic conductor 1 is inclined towards the bottom of the headphone slot 22. This helps to convert the downward pressure generated by the headphone C into a driving force acting on the cantilever 13. At the same time, part of the first deformation part 11 extends and deforms to drive the electrical contact surface 131 to move towards the socket 221, thereby raising the position of the electrical contact surface 131 such that the electrical contact surface 131 can abut against the contact C1. On the other hand, the first deformation part 11 and the second deformation part 12 respectively undergo extension deformation and bending deformation. On the premise of increasing the deformation amplitude of the elastic conductor 1, the elastic force exerted by the elastic conductor 1 on the headphone C is limited, and the service life of the elastic conductor 1 is improved.

[0156] Optionally, the charging device in this embodiment includes a first magnetic body. The headphone C includes a second magnetic body. When the headphone C is disposed in the headphone slot 22, the first magnetic body and the second magnetic body attract each other, such that the headphone C can be stably disposed in the charging device.

[0157] Referring further to Figure 15 shown, when the cantilever 13 in this embodiment abuts against the contact C1, the position of the electrical contact surface 131 is raised, and at the same time, the inclination amplitude of the cantilever 13 decreases, which can prevent the inclined cantilever 13 from pushing up the headphone C from the bottom of the ear handle part C3.

[0158] In some embodiments, such as Figures 5 - 7As shown, the bearing part 2 further has a limiting groove 21, the limiting groove 21 communicates with the earphone groove 22, and the inner wall of the limiting groove 21 includes a limiting surface 3.

[0159] Refer further to Figures 9 - 12 As shown, the second deformation part 12 is arranged in the limiting groove 21, and the cantilever 13 extends from the limiting groove 21 into the earphone groove 22. When the elastic conductor 1 is bent and abuts against the limiting surface 3, the electrical contact surface 131 moves from the earphone groove 22 to the limiting groove 21.

[0160] In this embodiment, when the elastic conductor 1 is bent and deformed, a part of the elastic conductor 1 will abut against the limiting groove 21, thereby restricting the deformation state of the elastic conductor 1 and ensuring the elastic force generated by the elastic conductor 1. At the same time, during the process of the cantilever 13 moving away from the earphone groove 22, the limiting groove 21 can be used to accommodate the cantilever 13.

[0161] In some embodiments, such as Figures 12 - 13 As shown, the limiting surface 3 includes a first limiting surface 31. The first limiting surface 31 is located on one side of the limiting groove 21 close to the earphone groove 22 and extends along the depth direction of the earphone groove 22. The second deformation part 12 includes a first bending section A1, the first bending section A1 bends towards the first limiting surface 31, and the second deformation part 12 is located on the side of the first deformation part 11 away from the socket 221.

[0162] Specifically, the first bending section A1 is in a bent state in the free state, and its bending amplitude is an angle a1. The angle a1 can be 180 degrees.

[0163] Refer further to Figure 13 As shown, during the process of the earphone C pressing against the cantilever 13, the cantilever 13 transmits the downward pressure to the first bending section A1 through the first deformation part 11, causing the first bending section A1 to bend and deform (the angle a1 decreases). In this form, the first bending section A1 is in contact with the first limiting surface 31, and the first bending section A1 drives the first deformation part 11 to tilt away from the earphone groove 22. During this process, the electrical contact surface 131 moves along the horizontal direction of the earphone groove 22, and the tilting amplitude of the cantilever 13 decreases (the angle a5 decreases).

[0164] The first bending section A1 in this embodiment can cause the entire first deformation part 11 to tilt, so as to facilitate adjusting the angle of the cantilever 13 and enable the first deformation part 11 to enter the limiting groove 21 more, which helps the first deformation part 11 to stretch and deform under the push of the earphone C.

[0165] In some embodiments, such as Figure 12 and Figures 13 - 15As shown, the first deformation part 11 includes a second bending section A2. In the length direction of the elastic conductor 1, the second bending section A2 is located between the first bending section A1 and the cantilever 13, and the second bending section A2 bends away from the earphone slot 22.

[0166] During the process that the first bending section A1 bends and drives the second bending section A2 to tilt away from the earphone slot 22, the second bending section A2 stretches and deforms (the angle a2 increases), so as to drive the cantilever 13 closer to the socket 221.

[0167] During the stretching deformation process of the second bending section A2 in this embodiment, the earphone C continuously applies a thrust force to the cantilever 13, and the direction of the thrust force applied by the earphone C to the cantilever 13 gradually changes from facing obliquely downward to facing the horizontal direction. That is, as Figures 13 - 15 shown, the direction change of the applied thrust force is as shown by the arrow b1, the arrow b2, and the arrow b3.

[0168] It is easy to understand that as shown by the arrow b2 and the arrow b3, the thrust force applied by the earphone C can be transmitted to the fifth connection section B5 through the cantilever 13. In this form, the earphone C can drive the fifth connection section B5 and the first connection section B1 to open, so that the second bending section A2 generates stretching deformation.

[0169] In some embodiments, as Figure 7 、 Figure 11 and Figure 14 shown, the limiting surface 3 further includes a second limiting surface 32. The second limiting surface 32 is spaced from the first limiting surface 31 and faces the earphone slot 22. That is, the second limiting surface 32 is located on the side of the limiting slot 21 away from the earphone slot 22.

[0170] The first deformation part 11 further includes a third bending section A3. In the length direction of the elastic conductor 1, the third bending section A3 is located between the cantilever 13 and the second bending section A2, and the cantilever 13 extends from the third bending section A3 to the earphone slot 22. The second bending section A2 stretches and deforms until the third bending section A3 abuts against the second limiting surface 32, and the first bending section A1 is in an abutting state with the first limiting surface 31.

[0171] Specifically, after the earphone C is arranged in the earphone slot 22, the earphone handle part C3 will push the third bending section A3 against the second limiting surface 32, and the second limiting surface 32 makes the first deformation part 11 unable to move further. In contrast, the first bending section A1 abuts against the first limiting surface 31. In this form, the forms of the first deformation part 11 and the second deformation part 12 in the horizontal direction are restricted by the limiting slot 21, so that the elastic conductor 1 can apply sufficient elastic force to the contact point C1 through the limiting slot 21, thereby maintaining the stable connection between the electrical contact surface 131 and the contact point C1.

[0172] In some embodiments, such as Figure 12 shown, the limiting surface 3 further includes a third limiting surface 33. The third limiting surface 33 faces away from the socket 221 and is located on the side of the limiting groove 21 close to the socket 221, and the third bending section A3 bends towards the third limiting surface 33.

[0173] Referring further to Figures 14 - 15 shown, when the inclination amplitude of the cantilever 13 is within a predetermined range, the first bending section A1 and the second bending section A2 stretch and deform to drive the third bending section A3 to abut against the third limiting surface 33 and slide towards the second limiting surface 32.

[0174] Specifically, the third limiting surface 33 in this embodiment is vertically connected to the second limiting surface 32. When the earphone C is in the first stroke, the first bending section A1 is in a bent deformation state. When the earphone C is in the second stroke, the first bending section A1 stretches and deforms, that is, from Figure 13 the state shown to Figure 14 the state shown in. In this form, Figure 14 the first bending section A1 in is still in a bent form, but the bending amplitude is smaller than that in Figure 13 . Thus, the first bending section A1 drives the first deformation part 11 close to the third limiting surface 33, so that the third bending section A3 abuts against the third limiting surface 33. Driven by the stretching and deformation of the second bending section A2, the third bending section A3 will slide towards the second limiting surface 32 until it abuts against the second limiting surface 32.

[0175] Therefore, the third limiting surface 33 in this embodiment can limit the lifting height of the cantilever 13 and prevent the electrical contact surface 131 from rising too much. At the same time, in the first stroke and the second stroke, the bending amplitude of the first bending section A1 in this embodiment first increases and then decreases, so that the first bending section A1 can buffer the falling of the earphone C and reduce the speed when the earphone C contacts the earphone slot 22.

[0176] In some embodiments, such as Figure 12 and Figure 15 shown, the second limiting surface 32 extends along the depth direction of the earphone slot 22, and a part of the second limiting surface 32 is disposed opposite to the first limiting surface 31. The second deformation part 12 further includes a first connecting section B1, and the first connecting section B1 is connected between the first bending section A1 and the second bending section A2.

[0177] When the first bending section A1 and the second bending section A2 are in contact with the limiting surface 3, the first connecting section B1 is located between the first limiting surface 31 and the second limiting surface 32. Thus, the elastic force generated by the elastic conductive body 1 is transmitted to the first limiting surface 31 and the second limiting surface 32 respectively through the first connecting section B1, thereby limiting the deformation amplitude of the elastic conductive body 1 and ensuring that the electrical contact surface 131 is stably in contact with the contact C1. At the same time, when the first bending section A1 undergoes bending deformation, it can also drive the first deformation part 11 to tilt through the first connecting section B1.

[0178] In some embodiments, as Figures 8 - 9 shown, the charging device further includes a positioning portion 4. Referring further to Figure 12 shown, the second deformation part 12 further includes a second connecting section B2, a third connecting section B3, and a fourth bending section A4 connected between the second connecting section B2 and the third connecting section B3. The first bending section A1 is connected between the first connecting section B1 and the second connecting section B2.

[0179] The third connecting section B3 extends from the fourth bending section A4 to the positioning portion 4, and the elastic conductive body 1 is disposed on the bearing portion 2 through the positioning portion 4.

[0180] Specifically, when the elastic conductive body 1 is in a state, the first connecting section B1 and the second connecting section B2 extend along the radial direction of the earphone slot 22, and the third connecting section B3 extends along the depth direction of the earphone slot 22 (the angle a4 is 90 degrees). The second connecting section B2 and the first connecting section B1 in this embodiment can increase the moment when the first bending section A1 deforms, making it easier for the first bending section A1 to deform. At the same time, the second connecting section B2 and the third connecting section B3 can also cause the fourth bending section A4 to deform, so as to drive the first deformation part 11 to approach or move away from the socket 221.

[0181] In some embodiments, as Figures 12 - 15 shown, the first deformation part 11 further includes a fifth connecting section B5. The third bending section A3 is connected between the cantilever 13 and the fifth connecting section B5. And the fifth connecting section B5 is connected between the third bending section A3 and the second bending section A2.

[0182] The second bending section A2 drives the cantilever 13 to move through the fifth connecting section B5, and the third bending section A3 bends and deforms, driving the cantilever 13 to approach the fifth connecting section B5. The third bending section A3 in this embodiment can also bend and deform, thereby increasing the overall bending amplitude of the elastic conductive body 1.

[0183] In some embodiments, as Figures 10 - 12As shown, the elastic conductor 1 is in a strip structure. The bending direction of the elastic conductor 1 is perpendicular to the width direction of the strip structure, and the widths of the first bending section A1, the second bending section A2, and the third bending section A3 decrease in sequence. That is, the distances L3, L4, and L5 increase in sequence. The width of the fourth bending section A4 can also be configured to be the largest, that is, the distance L6 is greater than L5.

[0184] In this embodiment, on the premise that the bending amplitudes of each bending section are the same, the larger the width of the bending section, the greater the stress driving the bending of the bending section. That is, the greater the elastic force generated by the bending section with a larger width.

[0185] The widths of the first bending section A1, the second bending section A2, and the third bending section A3 are configured to decrease in sequence. When the cantilever 13 drives the elastic conductor 1 to deform, the first deformation part 11 can deform quickly, so that the cantilever 13 is received in the limit groove 21. At the same time, after the direction of the driving force of the earphone C changes, the first bending section A1 can quickly restore its shape in time to cooperate with the thrust of the earphone C to unfold the second bending section A2.

[0186] Furthermore, the width of the fifth connection section B5 is configured to be greater than that of the fourth connection section B4. Thus, the region where the elastic conductor 1 is connected to the positioning part 4 has better rigidity, ensuring the position accuracy when the first deformation part 11 moves.

[0187] Preferably, the first connection section B1, the second connection section B2, the cantilever 13, and the fifth connection section B5 extend along a straight line, and the lengths of the first connection section B1 and the second connection section B2 are greater than the lengths of the cantilever 13 and the fifth connection section B5. Thus, the moment generated by the approach or separation of the cantilever 13 and the fifth connection section B5 on the third bending section A3 is greater than the moment generated by the first connection section B1 and the second connection section B2 on the first bending section A1. Thus, the first deformation part 11 and the cantilever 13 are more likely to deform.

[0188] In some embodiments, as Figure 11 、 Figure 12 and Figure 15 shown, the electrical contact surface 131 is located at the end of the cantilever 13 away from the third bending section A3, and the electrical contact surface 131 is an arc surface.

[0189] The first deformation part 11 further includes a free section 14. The free section 14 is arranged at one end of the cantilever 13 away from the third bending section A3 and is bent away from the electrical contact surface 131. When the elastic conductor 1 is in a free state, the electrical contact surface 131 is bent away from the second limiting surface 32.

[0190] When one end of the electrical contact surface 131 of the cantilever 13 is lifted towards the socket 221, the bent electrical contact surface 131 can face the contact point C1 to facilitate their electrical connection. At the same time, the free section 14 extends away from the earphone C and the electrical contact surface 131 is set as an arc surface. During the process of the electrical contact surface 131 contacting the contact point C1, it can also prevent the contact point C1 and the ear handle part C3 from being scratched.

[0191] In some embodiments, as Figure 9 shown, the elastic conductor 1 further includes a fixed part 15 and a power feeding end 16. In the extending direction of the elastic conductor 1, the second deformation part 12 is located between the first deformation part 11 and the fixed part 15, and the power feeding end 16 is located at one end of the fixed part 15 away from the second deformation part 12. The charging device further includes a positioning part 4. The positioning part 4 is an injection molded part. The fixed part 15 is arranged in the positioning part 4, and the power feeding end 16 extends out of the positioning part 4. The power feeding end 16 is used to feed current into the elastic conductor 1.

[0192] Specifically, a fixing through hole 151 is formed on the fourth connection section B4, and the positioning part 4 fills the fixing through hole 151. In this embodiment, the elastic conductor 1 and the positioning part 4 adopt an insert molding process, and the positioning part 4 is injection molded together with the fixed part 15 as an insert. The fixing through hole 151 can enable the fixed part 15 and the positioning part 4 to be stably connected.

[0193] In some embodiments, as Figure 9 and Figure 12 shown, the fixed part 15 includes two fifth bending sections A5 and a fourth connection section B4 connected between the two fifth bending sections A5. The bending directions of the two fifth bending sections A5 are opposite. The power feeding end 16 is arranged at the end of one fifth bending section A5, and the second deformation part 12 extends from the other fifth bending section A5 towards the limiting groove 21.

[0194] In this embodiment, the length of the fixed part 15 is increased by the two fifth bending sections A5, thereby increasing the contact area between the elastic conductor 1 and the positioning part 4, so that they are stably connected. It can also adjust the position of the power feeding end 16 in the horizontal direction.

[0195] In some embodiments, as Figures 5 - 7 shown, the bearing part 2 further has a positioning recess 23, and the positioning recess 23 is opposite to the orientation of the earphone slot 22. One side of the positioning part 4 close to the limiting groove 21 fits with the bottom surface of the positioning recess 23, and the side away from the limiting groove 21 forms a glue groove 231 with the positioning recess 23. The power feeding end 16 extends from the inner side of the glue groove 231 to the outer side of the glue groove 231.

[0196] Further, a connection window 232 is formed at the bottom of the positioning recess 23. The limiting groove 21 extends away from the socket 221 and communicates with the positioning recess 23 through the connection window 232. The positioning portion 4 in this embodiment can cooperate with the positioning recess 23 to ensure the installation accuracy between the elastic conductor 1 and the bearing portion 2. At the same time, when the positioning portion 4 is installed in the positioning recess 23, the elastic conductor 1 can extend into the limiting groove 21 through the connection window 232. Thereby, the installation method of the elastic conductor 1 is simplified.

[0197] In some embodiments, as Figures 5 - 6 shown, the charging device further includes an adhesive 5, and the adhesive 5 fills the glue groove 231. When the adhesive 5 cures, the positioning portion 4 and the bearing portion 2 can be fixed together.

[0198] The charging device in the above embodiment can be installed according to the following steps. First, the elastic conductor 1 is disposed in the positioning portion 4 by an insert molding process. Second, the bearing portion 2 is flipped so that the positioning recess 23 faces upward, the positioning portion 4 is installed in the positioning recess 23, and the elastic conductor 1 is disposed in the limiting groove 21 and the earphone groove 22. Third, the adhesive 5 is filled in the glue groove 231, and the power feeding portion 8 is kept protruding from the adhesive 5. Finally, when the adhesive 5 cures, the assembly can be completed.

[0199] It is easy to understand that compared with Figures 1 - 2 the structure of the charging base shown in, the number of components of the charging device in this embodiment is less, reducing the manufacturing cost. At the same time, only the adhesive 5 needs to be filled in the positioning recess 23 once, improving the yield. On the other hand, the elastic conductor 1 in this embodiment is bent, so that the space occupied by the elastic conductor 1 is less, reducing the volume of the limiting groove 21. On the other hand, when the elastic conductor 1 is in a free state, the free section 14 is in a suspended state. That is, the electrical contact surface 131 does not need to be positioned by the bearing portion 2, thereby further reducing the requirement for the installation accuracy of the elastic conductor 1.

[0200] Figure 16 and Figure 17 are schematic structural diagrams of the bearing portion 2 and the accommodation box 26 of this embodiment. Figure 16The charging device in [description] further includes a flexible printed circuit board 263 (Flexible Printed Circuit Board), a receiving box 26, and a circuit board 82. The receiving box 26 in the figure is in a disassembled state. The receiving box 26 includes a lining 261 and a bottom plate 262. The circuit board 82 is disposed on the bottom plate 262, and the bearing portion 2 is disposed on the lining 261. The circuit board 82 is used to supply power to the feeding end 16. The flexible printed circuit board 263 needs to meet certain length requirements so that an operator can connect one end of the flexible printed circuit board 263 to the feeding end 16 and the other end to the circuit board 82. Then, the lining 261 is installed on the bottom plate 262. In this form, the flexible printed circuit board 263 curls inside the receiving box 26 to accommodate the flexible printed circuit board 263 through the receiving box 26.

[0201] Figure 17 The charging device in [description] includes a mounting block 6, a connecting portion 7, a feeding portion 8, a receiving box 26, and a circuit board 82. The receiving box 26 in the figure is in an assembled state, and a partial contour of the receiving box 26 is shown with a dotted line. The receiving box 26 includes a lining 261 and a bottom plate 262. The feeding portion 8 is disposed on the bottom plate 262, and the bearing portion 2 is disposed on the lining 261.

[0202] Figure 18 is an exploded schematic view of the charging device of this embodiment. Figure 19 and Figure 20 is a schematic structural view of the connecting portion 7 and the bearing portion 2 of this embodiment.

[0203] Figure 21 is a partial schematic view of the first connection end 721 and the mounting block 6 of this embodiment. Figure 22 and Figure 23 is a schematic view of the positional relationship between the contact plate 71 and the feeding elastic piece 81 of this embodiment. Figure 24 is a cross-sectional schematic view of the bearing portion 2 of this embodiment.

[0204] Figure 25 is a schematic view of the positional relationship between the bearing portion 2 and the circuit board 82 of this embodiment. In this embodiment, the two bearing portions 2 are correspondingly arranged with the same circuit board 82.

[0205] In some embodiments, as Figure 5 、 Figure 6 and Figure 15 shown, the earphone slot 22 has two windows 222, and the number of the limiting slots 21 is two and they are respectively communicated with the earphone slot 22 through the two windows 222.

[0206] The number of the elastic conductors 1 is two and they respectively extend into the earphone slot 22 through the two windows 222, and the widths of the two elastic conductors 1 are perpendicular ( Figure 25 the included angle between the two dotted lines in [figure] is 90 degrees).

[0207] Specifically, the charging device in this embodiment feeds direct current into the earphone C. The two elastic conductors 1 are respectively used to connect the two contacts C1 of the earphone C, and the two contacts C1 are the positive electrode and the negative electrode respectively. At the same time, the width directions of the two elastic conductors 1 are perpendicular. When the two elastic conductors 1 are in contact with the earphone C, it can ensure that the two elastic conductors 1 stably abut the earphone C against the inner side wall of the earphone slot 22.

[0208] In some embodiments, such as Figure 5 and Figures 17 - 19 shown, the number of the positioning portions 4, the positioning depressions 23, the limiting grooves 21 and the elastic conductors 1 is two. The two elastic conductors 1 are correspondingly arranged with the two limiting grooves 21, the two positioning depressions 23 and the two positioning portions 4 at the same time.

[0209] Referring further to Figures 22 - 23 shown, the charging device further includes two mounting blocks 6, a connecting portion 7 and a power feeding portion 8. The two mounting blocks 6 protrude from the outer side surface of the bearing portion 2, and the two mounting blocks 6 are opposite and spaced apart. The connecting portion 7 includes two contact plates 71. The two contact plates 71 are respectively arranged on the two mounting blocks 6 and located on the opposite sides of the two mounting blocks 6. The two contact plates 71 are respectively electrically connected to the two power feeding ends 16.

[0210] Correspondingly, the power feeding portion 8 includes two power feeding elastic pieces 81 arranged in pairs. The two power feeding elastic pieces 81 are arranged between the two contact plates 71, and the two power feeding elastic pieces 81 are respectively electrically lapped with the two contact plates 71.

[0211] In this embodiment, the two power feeding elastic pieces 81 are elastically deformed and electrically connected to the two contact plates 71, saving the welding process. The connection process between the power feeding portion 8 and the connecting portion 7 is made simpler.

[0212] In some embodiments, such as Figure 20 shown, the connecting portion 7 further includes two strip conductors 72. The strip conductor 72 includes a first connection end 721, a second connection end 722 and an extension portion 723 located between the first connection end 721 and the second connection end 722.

[0213] The two extension portions 723 are attached to different regions of the outer side surface of the bearing portion 2. The two first connection ends 721 are respectively connected to the two contact plates 71, and the two second connection ends 722 are respectively electrically connected to the two power feeding ends 16.

[0214] It is easy to understand that after the inner liner 261 is installed with the bottom plate 262, a receiving cavity will be formed inside the receiving box 26. In this embodiment, the two extension parts 723 are attached to the outer side surface of the bearing part 2, which can reduce the occupation of the inner area of the receiving cavity by the connecting part 7. At the same time, the two extension parts 723 are attached to different areas of the outer side surface of the bearing part 2 to avoid short circuit between the two extension parts 723.

[0215] In some embodiments, as Figures 19 - 21 shown, the charging device further includes a plurality of positioning members 61. The plurality of positioning members 61 respectively protrude from the two mounting blocks 6. The positioning member 61 includes a column body 611 and a plurality of flanges 612. The plurality of flanges 612 protrude from the side of the column body 611. The first connection end 721 has a positioning hole 7211. The column body 611 extends into the positioning hole 7211 and the plurality of flanges 612 are clamped on the edge of the positioning hole 7211.

[0216] Specifically, the plurality of flanges 612 are evenly distributed around the column body 611. A guiding conical surface is provided at the end of the column body 611. The plurality of flanges 612 are located at the bottom of the column body 611. When the positioning hole 7211 is sleeved on the positioning member 61, the guiding conical surface can play a guiding role, and the plurality of flanges 612 are in interference fit with the positioning hole 7211, so that the first connection end 721 is stably connected to the mounting block 6, preventing the first connection end 721 from falling off the mounting block 6.

[0217] In some embodiments, as Figure 21 shown, the mounting block 6 has a second mounting surface 63. The second mounting surface 63 is a plane and has a plurality of grooves 65. The positioning member 61 protrudes from the bottom of the groove 65. When the first connection end 721 is attached to the second mounting surface 63, and the plurality of positioning holes 7211 are arranged at intervals and are opposite to the bottoms of the plurality of grooves 65.

[0218] The first connection end 721 in this embodiment extends along a plane. When the first connection end 721 is attached to the second mounting surface 63, the connection hole 7221 can be kept at a distance from the bottom of the positioning member 61, avoiding interference between the connection hole 7221 and the connection positions of the positioning member 61 and the groove 65.

[0219] Specifically, the material of the connecting portion 7 in this embodiment can be metal, such as copper, iron, copper alloy, aluminum alloy, etc. The connecting portion 7 can be made by stamping process. Thus, the contact plate 71 and the strip conductor 72 are integrally formed. During the connection of the connecting portion 7 and the bearing portion 2, the operator flips the bearing portion 2 so that the socket 221 faces downward. Then, the connecting portion 7 is moved from above the bearing portion 2 to the bearing portion 2, so that the positioning hole 7211 is sleeved on the positioning member 61, the strip conductor 72 is attached to the outer side wall of the bearing portion 2, and at the same time the connection hole 7221 is sleeved on the feeding end 16. In this form, the feeding end 16 extends into the connection hole 7221 and the feeding end 16 does not contact the connection hole 7221, so as to avoid stress between the connecting portion 7, the bearing portion 2 and the elastic conductor 1. Finally, the second connection end 722 and the feeding end 16 are fixed together by soldering.

[0220] In some embodiments, as Figures 19 - 20 shown, the connecting portion 7 further includes a plurality of solder blocks 73. The top of the cured adhesive 5 is flush with the top of the glue groove 231. The second connection end 722 has a connection hole 7221. The second connection end 722 extends from the top edge of the glue groove 231 to the top of the adhesive 5, and the connection hole 7221 is sleeved on the feeding end 16. The second connection end 722 is fixedly connected to the adhesive 5 and the feeding end 16 through the solder blocks 73, and the second connection end 722 is electrically connected to the feeding end 16.

[0221] The solder blocks 73 in this embodiment can fix the second connection end 722 to the adhesive 5 and the feeding end 16, and at the same time can also electrically connect the second connection end 722 and the feeding end 16.

[0222] Furthermore, as Figure 18 shown, the positioning member 61 is arranged at the bottom of the mounting block 6, and the column 611, the glue groove 231 and the feeding end 16 all face downward of the bearing portion 2. The connecting portion 7 in this embodiment can be installed on the bearing portion 2 from below the bearing portion 2, so that the positioning hole 7211 and the connection hole 7221 are simultaneously sleeved on the feeding end 16 and the positioning member 61. Thus, the assembly of the charging device is simplified.

[0223] In some embodiments, as Figure 17 shown, the feeding portion 8 further includes a circuit board 82. The circuit board 82 includes a plurality of feeding areas 821, and the feeding elastic pieces 81 are erected on the feeding areas 821.

[0224] Referring further to Figures 22 - 23 shown, the feeding elastic piece 81 includes a sixth bending section 811. The sixth bending section 811 has an abutting surface 8111, and the two sixth bending sections 811 bend in a direction away from each other.

[0225] When the feeding elastic piece 81 is in a free state, the distance (distance L8) between the two abutting surfaces 8111 is greater than the distance (distance L7) between the two contact plates 71. When the two abutting surfaces 8111 are respectively in an abutting state with the two contact plates 71, the two feeding elastic pieces 81 are bent and deformed towards the opposite sides (that is, approaching each other). In this form, the distance between the two feeding elastic pieces 81 is distance L9. In this embodiment, it is necessary to keep the distance L9 greater than 0 to prevent the two feeding elastic pieces 81 from being short-circuited after bending.

[0226] In some embodiments, as Figures 19 - 20 shown, the mounting block 6 has a first mounting surface 62, a second mounting surface 63, and an edge 64 located between the first mounting surface 62 and the second mounting surface 63, and the second mounting surface 63 faces the circuit board 82.

[0227] Referring further to Figure 22 and Figure 23 shown, the first connection end 721 is disposed on the second mounting surface 63, a part of the contact plate 71 is disposed on the first mounting surface 62, the edge of the contact plate 71 covers at least a part of the edge 64 and extends to the first connection end 721. The sixth bending section 811 further includes a guiding inclined surface 8112. The guiding inclined surface 8112 is located on the side of the abutting surface 8111 away from the circuit board 82, and in the free state of the feeding elastic piece 81, the distance between the two guiding inclined surfaces 8112 is the same as the distance between the two edges 64.

[0228] An operator can insert the feeding elastic piece 81 from the bottom of the bearing part 2 between the two contact plates 71. During this process, the guiding inclined surface 8112 will abut against the contact plate 71 at the position of the edge 64, so that the two feeding elastic pieces 81 are bent towards each other to ensure that the sixth bending section 811 can slide into the space between the two contact plates 71.

[0229] Furthermore, as Figure 17 shown, the feeding part 8 is disposed at the bottom of the basin 262, and the bearing part 2 is disposed on the inner lining 261. When the operator installs the inner lining 261 on the bottom of the basin 262, the feeding elastic piece 81 can be directly lapped with the contact plate 71. Thus, the installation process of the charging device is greatly simplified. The flexible circuit board 263 is prevented from occupying the internal space of the accommodating box 26.

[0230] In some embodiments, as Figure 25As shown in the figure, the charging device in this embodiment includes a housing box 26, two component units, and a power feeding unit 8. The two component units are respectively used to set two earphones C, and the two component units are arranged on the inner liner 261. The component unit includes the elastic conductive body 1, the bearing part 2, the positioning part 4, the adhesive 5, the mounting block 6, and the connecting part 7 in the above embodiment. The power feeding unit 8 includes a circuit board 82 and four power feeding elastic sheets 81 arranged on the circuit board 82. When the operator mounts the inner liner 261 on the bottom plate 262, the connection of the two component units and the power feeding unit 8 can be realized simultaneously.

[0231] In some embodiments, as Figure 20 and Figure 24 shown, the bearing part 2 further includes a first housing 251 and two second housings 252. The first housing 251 has an earphone slot 22, and two windows 222 are opened in the earphone slot 22. The two second housings 252 are integrally formed with the first housing 251 and are located on the side of the first housing 251 away from the socket 221. The second housing 252 and the first housing 251 form a limiting slot 21 and a positioning recess 23, and the two limiting slots 21 communicate with the earphone slot 22 through the two windows 222 respectively.

[0232] Referring further to Figure 25 shown, the two mounting blocks 6 protrude from the first housing 251, and in the cross-sectional direction of the depth of the earphone slot 22, the two mounting blocks 6 are staggered with the two second housings 252.

[0233] Furthermore, the two contact plates 71 are parallel to each other, and the two contact plates 71 are perpendicular to the circuit board 82. In this embodiment, the two mounting blocks 6 are arranged on one side of the first housing 251, so that the power feeding unit 8 can be arranged on one side of the bearing part 2 and supply power to the elastic conductive body 1. As Figure 25 shown, when the number of the bearing parts 2 is multiple, the multiple mounting blocks 6 are all arranged at positions corresponding to the circuit board 82, which helps the power feeding unit 8 to supply power to multiple groups of contact plates 71 with one circuit board 82.

[0234] In some embodiments, as Figure 24 shown, the first housing 251 includes a first side wall 2511 and a first end wall 2512 opposite to the socket 221. The first side wall 2511 surrounds the first end wall 2512 to form the earphone slot 22, and a window 222 is opened at one end of the first side wall 2511 close to the first end wall 2512.

[0235] The second housing 252 includes a second side wall 2521 and a second end wall 2522. The thickness direction of the second end wall 2522 is consistent with the depth direction of the earphone slot 22. The second side wall 2521 extends from the second end wall 2522 along the depth direction of the earphone slot 22 to the side of the first end wall 2512 away from the socket 221. The second side wall 2521 includes a first portion 2531 and a second portion 2532 in the extending direction. The first portion 2531, the second end wall 2522 and the first end wall 2512 form a limiting slot 21. The inner wall of the second portion 2532 is an oblong hole. The second portion 2532 is located on the side of the first end wall 2512 away from the socket 221. The second portion 2532 and a part of the first end wall 2512 form a positioning recess 23.

[0236] In this embodiment, the adhesive 5 is flush with the edge of the second portion 2532 away from the socket 221, so as to facilitate the arrangement of the second connection end 722 at the bottom of the bearing portion 2. Meanwhile, the configuration forms of the first housing 251 and the second housing 252 can further reduce the weight of the charging device and save the internal space of the accommodation box 26.

[0237] In some embodiments, as Figure 24 shown, the two second housings 252 are respectively arranged corresponding to the two mounting blocks 6. Further referring to Figure 20 shown, in the cross-sectional direction of the depth of the earphone slot 22, the two extending portions 723 extend along the outer side surface of the first housing 251 and the extending directions are opposite.

[0238] The connecting portion 7 in this embodiment can prevent the short circuit of the two strip conductors 72, and at the same time make the most of the space on the outer side surface of the bearing portion 2.

[0239] In some embodiments, as Figure 19 shown, the extending portion 723 includes a first section 7231 and a second section 7232. The two first sections 7231 of the two extending portions 723 are attached to the outer side surface of the first housing 251 and the extending directions are opposite. The second section 7232 is attached to the outer side surface of the second side wall 2521 and extends along the depth direction of the earphone slot 22. One end of the second section 7232 extends to the edge of the second side wall 2521 away from the second end wall 2522 and is connected to the second connection end 722, and the other end is connected to one end of the first section 7231. The other end of the first section 7231 extends to the bottom of the mounting block 6 and is connected to the first connection end 721.

[0240] The first section 7231 and the second section 7232 in this embodiment are perpendicularly connected, so that the extending portion 723 can better adapt to the shape of the outer surface of the bearing portion 2. Moreover, the structure of the extending portion 723 is simplified for easy processing. At the same time, the length of the extending portion 723 can be minimized to reduce current loss.

[0241] In an alternative implementation, the charging device in the above embodiment can be applied to a headphone assembly. The headphone assembly in this embodiment further includes a headphone C. The headphone C includes a contact C1. The headphone C compresses the elastic conductive body 1 through the electrical contact surface 131 to bend and deform until the headphone C is disposed in the headphone slot 22 and the contact C1 is in contact with the electrical contact surface 131.

[0242] In summary, for the headphone assembly in this embodiment, the limiting slot 21 and the headphone slot 22 that communicate with each other are provided in the bearing portion 2. The cantilever 13, the first deformation portion 11, and the second deformation portion 12 are sequentially provided on the elastic conductive body 1, and the electrical contact surface 131 is provided on the side of the cantilever 13 away from the limiting slot 21. Thus, on the one hand, the second deformation portion 12 can drive the cantilever 13 away from the headphone slot 22 and use the limiting slot 21 to make room for the headphone C. On the other hand, when the elastic conductive body 1 is not compressed, the electrical contact surface 131 is located inside the headphone slot 22 and the elastic conductive body 1 is inclined towards the bottom of the headphone slot 22. This helps to convert the downward pressure generated by the headphone C into a driving force acting on the cantilever 13. At the same time, part of the first deformation portion 11 stretches and deforms to drive the electrical contact surface 131 to move towards the socket 221, thereby raising the position of the electrical contact surface 131 so that the electrical contact surface 131 can be in contact with the contact C1. On the other hand, the first deformation portion 11 and the second deformation portion 12 respectively produce stretching deformation and bending deformation. On the premise of increasing the deformation amplitude of the elastic conductive body 1, the elastic force exerted by the elastic conductive body 1 on the headphone C is limited, and the service life of the elastic conductive body 1 is improved.

[0243] In some embodiments, as Figures 11 - 15 shown, the headphone C further includes a headphone head C2 and a shank portion C3. The shank portion C3 is disposed on the headphone head C2 and includes a circumferential side surface C31 and a bottom side surface C32. The contact C1 is disposed on the circumferential side surface C31. The circumferential side surface C31 extends from the bottom side surface C32 towards the headphone head C2, and the bottom side surface C32 bends in a direction away from the headphone head C2. The bottom side surface C32 has a first position C41 and a second position C42. The first position C41 is farther from the headphone head C2 than the second position C42.

[0244] During the process of the shank portion C3 approaching the bottom of the headphone slot 22, the cantilever 13 slides from the first position C41 to the second position C42, and then slides from the second position C42 to the circumferential side surface C31. And when the cantilever 13 slides from the second position C42 to the circumferential side surface C31, the inclination amplitude of the cantilever 13 decreases.

[0245] The diameter of the bottom of the ear handle part C3 in this embodiment gradually increases. When the ear handle part C3 contacts the cantilever 13, the direction of the acting force exerted by the ear handle part C3 on the cantilever 13 gradually changes, and then, through cooperation with the second bending section A2, the height of the electrical contact surface 131 is lifted.

[0246] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A charging device, characterized in that: The charging device comprises: The bearing portion (2) has an earphone slot (22) and a limiting slot (21) connected to the earphone slot (22), and the earphone slot (22) has a socket (221); and An elastic conductor (1), the elastic conductor (1) being bent and extended and having a cantilever (13), a first deformable portion (11) and a second deformable portion (12) arranged in sequence in the extending direction, the cantilever (13) having an electrical contact surface (131), the electrical contact surface (131) being located on a side of the cantilever (13) away from the limiting groove (21), an angle being formed between the cantilever (13) and the first deformable portion (11), and an angle being formed between the first deformable portion (11) and the second deformable portion (12); Wherein, when the elastic conductor (1) is in a free state, the cantilever (13) extends from the limiting groove (21) into the earphone groove (22) and tilts toward the bottom of the earphone groove (22); The cantilever (13) drives the elastic conductor (1) to deform, the second deformable portion (12) bends and deforms and drives the electrical contact surface (131) to move toward the limiting groove (21), and the bending amplitude of part of the first deformable portion (11) is reduced, and one end of the cantilever (13) at which the electrical contact surface (131) is arranged moves toward the socket (221).

2. The charging device according to claim 1, characterized in that: The inner wall of the limiting groove (21) comprises a limiting surface (3), the second deformation portion (12) is arranged in the limiting groove (21), and the electrical contact surface (131) is located at the end of the cantilever (13); The elastic conductor (1) is bent and deformed and abuts against the limiting surface (3), and one end of the cantilever (13) on which the electrical contact surface (131) is arranged is lifted toward the socket (221) at a predetermined angle.

3. The charging device according to claim 2, characterized in that: The limiting surface (3) comprises a first limiting surface (31), the first limiting surface (31) being located on a side of the limiting groove (21) close to the earphone groove (22) and extending along the depth direction of the earphone groove (22); The second deformable portion (12) comprises a first bending section (A1), the first bending section (A1) bends toward the first limiting surface (31), and the second deformable portion (12) is located on a side of the first deformable portion (11) away from the socket (221); The cantilever (13) compresses the first curved section (A1) to bend and deform, and the first curved section (A1) abuts against the first limiting surface (31) and drives the first deformed portion (11) to tilt in a direction away from the earphone slot (22).

4. The charging device according to claim 3, characterized in that: The first deformable portion (11) comprises a second curved section (A2), and in the extension direction of the elastic conductor (1), the second curved section (A2) is located between the first curved section (A1) and the cantilever (13), and the second curved section (A2) is bent in a direction away from the earphone slot (22); The first curved section (A1) bends and deforms, driving the second curved section (A2) to tilt in a direction away from the earphone slot (22); the second curved section (A2) stretches and deforms, driving the cantilever (13) to approach the socket (221).

5. The charging device according to claim 4, characterized in that: The limiting surface (3) further comprises a second limiting surface (32), wherein the second limiting surface (32) is spaced apart from the first limiting surface (31) and faces the earphone slot (22); The first deformable portion (11) further comprises a third curved section (A3), wherein in the extension direction of the elastic conductor (1), the third curved section (A3) is located between the cantilever (13) and the second curved section (A2), and the cantilever (13) extends from the third curved section (A3) to the earphone slot (22); The second curved section (A2) stretches and deforms until the third curved section (A3) abuts against the second limiting surface (32), and the first curved section (A1) abuts against the first limiting surface (31).

6. The charging device according to claim 5, characterized in that: The limiting surface (3) further comprises a third limiting surface (33), the third limiting surface (33) being oriented opposite to the socket (221) and being located on a side of the limiting groove (21) close to the socket (221), and the third curved section (A3) being curved toward the third limiting surface (33); The cantilever (13) has an inclination amplitude within a predetermined range, and the first curved section (A1) and the second curved section (A2) are stretched and deformed to drive the third curved section (A3) to abut against the third limiting surface (33) and slide toward the second limiting surface (32).

7. The charging device according to claim 6, characterized in that: The second limiting surface (32) extends along the depth direction of the earphone slot (22), and a portion of the second limiting surface (32) is arranged opposite to the first limiting surface (31); The second deformation portion (12) further comprises a first connecting section (B1), wherein the first connecting section (B1) is connected between the first curved section (A1) and the second curved section (A2); The first curved section (A1) and the second curved section (A2) are in abutment with the limiting surface (3), and the first connecting section (B1) is located between the first limiting surface (31) and the second limiting surface (32).

8. The charging device according to claim 7, characterized in that: The charging device also includes a positioning portion (4); The second deformable portion (12) further comprises a second connecting segment (B2), a third connecting segment (B3) and a fourth bending segment (A4) connected between the second connecting segment (B2) and the third connecting segment (B3); the first bending segment (A1) is connected between the first connecting segment (B1) and the second connecting segment (B2); the third connecting segment (B3) extends from the fourth bending segment (A4) to the positioning portion (4); and the elastic conductor (1) is arranged on the bearing portion (2) through the positioning portion (4).

9. The charging device according to claim 6, characterized in that: The first deformable portion (11) further comprises a fifth connecting segment (B5), the third curved segment (A3) is connected between the cantilever (13) and the fifth connecting segment (B5), and the fifth connecting segment (B5) is connected between the third curved segment (A3) and the second curved segment (A2); The second curved section (A2) drives the cantilever (13) to move via the fifth connecting section (B5), and the third curved section (A3) bends and deforms, driving the cantilever (13) to approach the fifth connecting section (B5).

10. The charging device according to claim 5, characterized in that: The elastic conductor (1) is a strip-shaped structure, the bending direction of the elastic conductor (1) is perpendicular to the width direction of the strip-shaped structure, and the widths of the first bending section (A1), the second bending section (A2) and the third bending section (A3) decrease successively.

11. The charging device according to claim 5, characterized in that: The electrical contact surface (131) is located at the end of the cantilever (13) away from the third curved section (A3), and the electrical contact surface (131) is a curved surface; The first deformable portion (11) further comprises a free section (14), wherein the free section (14) is arranged at one end of the cantilever (13) away from the third bent section (A3) and is bent in a direction away from the electrical contact surface (131); The elastic conductor (1) is in a free state, and the electrical contact surface (131) is bent in a direction away from the second limiting surface (32).

12. The charging device according to claim 2, characterized in that: The elastic conductor (1) further comprises a fixed portion (15) and a feeding end (16); in the extension direction of the elastic conductor (1), the second deformable portion (12) is located between the first deformable portion (11) and the fixed portion (15); and the feeding end (16) is located at an end of the fixed portion (15) away from the second deformable portion (12); The charging device further comprises a positioning portion (4), the positioning portion (4) being an injection-molded part, the fixing portion (15) being arranged in the positioning portion (4), and the feeding end (16) extending from the positioning portion (4).

13. The charging device according to claim 12, characterized in that: The fixing part (15) comprises: Two fifth bending sections (A5) and a fourth connecting section (B4) connected between the two fifth bending sections (A5), the bending directions of the two fifth bending sections (A5) are opposite, the feeding end (16) is arranged at the end of one of the fifth bending sections (A5), and the second deformation portion (12) extends from the other fifth bending section (A5) to the limiting groove (21).

14. The charging device according to claim 12, characterized in that: The bearing portion (2) further comprises a positioning recess (23), wherein the positioning recess (23) is oriented in the opposite direction to the earphone slot (22); The side of the positioning portion (4) close to the limiting groove (21) is in contact with the bottom surface of the positioning recess (23), and the side away from the limiting groove (21) forms a glue groove (231) with the positioning recess (23), and the feeding end (16) extends from the inside of the glue groove (231) to the outside; The charging device further comprises adhesive glue (5), and the adhesive glue (5) fills the glue groove (231).

15. The charging device according to claim 10, characterized in that: The earphone slot (22) has two windows (222), the number of the limiting slots (21) is two and they are connected to the earphone slot (22) through the two windows (222) respectively; The number of the elastic conductors (1) is two and they extend into the earphone slot (22) through the two windows (222) respectively, and the width directions of the two elastic conductors (1) are perpendicular.

16. The charging device according to claim 14, characterized in that: The number of the positioning portion (4), the positioning recess (23), the limiting groove (21) and the elastic conductor (1) is two, and the two elastic conductors (1) are arranged corresponding to the two limiting grooves (21), the two positioning recesses (23) and the two positioning portions (4); The charging device also includes: Two mounting blocks (6) are protrudingly arranged on the outer side surface of the bearing portion (2), and the two mounting blocks (6) are arranged opposite to each other and at a distance; A connecting portion (7), comprising two contact plates (71), the two contact plates (71) being respectively arranged on the two mounting blocks (6) and located on opposite sides of the two mounting blocks (6), the two contact plates (71) being respectively electrically connected to the two feeding terminals (16); and The feeding part (8) comprises two feeding springs (81) arranged in pairs, wherein the two feeding springs (81) are arranged between the two contact plates (71), and the two feeding springs (81) are electrically overlapped with the two contact plates (71) respectively.

17. The charging device according to claim 16, characterized in that: The connecting portion (7) further comprises two strip conductors (72), wherein the strip conductor (72) comprises a first connecting end (721), a second connecting end (722), and an extending portion (723) located between the first connecting end (721) and the second connecting end (722); The two extension portions (723) are attached to different areas of the outer side surface of the bearing portion (2), the two first connection ends (721) are respectively connected to the two contact plates (71), and the two second connection ends (722) are respectively electrically connected to the two feeding ends (16).

18. The charging device according to claim 17, characterized in that: The charging device also includes: A plurality of positioning members (61) are respectively protruded from the two mounting blocks (6), the positioning members (61) comprising a column (611) and a plurality of flanges (612), the plurality of flanges (612) being protruded from the sides of the column (611); The first connecting end (721) has a positioning hole (7211), the column (611) extends into the positioning hole (7211), and the plurality of flanges (612) are clamped on the hole edge of the positioning hole (7211).

19. The charging device according to claim 17, characterized in that: The connecting portion (7) further comprises a plurality of solder blocks (73); The top of the cured adhesive (5) is flush with the top of the adhesive groove (231); The second connection end (722) has a connection hole (7221), the second connection end (722) extends from the top edge of the glue groove (231) to the top of the adhesive glue (5), and the connection hole (7221) is sleeved on the feeding end (16), the second connection end (722) is fixedly connected to the adhesive glue (5) and the feeding end (16) through the solder block (73), and the second connection end (722) is electrically connected to the feeding end (16).

20. The charging device according to claim 17, characterized in that: The feeder (8) further comprises: The circuit board (82) comprises a plurality of feeding areas (821), and the feeding springs (81) are vertically arranged on the feeding areas (821); The feeding spring piece (81) comprises a sixth bending section (811), the sixth bending section (811) having an abutting surface (8111), and the two sixth bending sections (811) are bent in directions away from each other; When the feeding spring piece (81) is in a free state, the distance between the two abutting surfaces (8111) is greater than the distance between the two contact plates (71), the two abutting surfaces (8111) are respectively in abutting state with the two contact plates (71), and the two feeding spring pieces (81) are bent and deformed toward opposite sides.

21. The charging device according to claim 20, characterized in that: The mounting block (6) comprises a first mounting surface (62), a second mounting surface (63), and an edge (64) located between the first mounting surface (62) and the second mounting surface (63), wherein the second mounting surface (63) faces the circuit board (82); The first connection end (721) is arranged on the second mounting surface (63), a portion of the contact plate (71) is arranged on the first mounting surface (62), and an edge of the contact plate (71) covers at least a portion of the edge (64) and extends to the first connection end (721); The sixth curved section (811) further comprises a guiding bevel (8112), wherein the guiding bevel (8112) is located on a side of the abutting surface (8111) away from the circuit board (82), and when the feeding spring sheet (81) is in a free state, the spacing between the two guiding bevels (8112) is the same as the spacing between the two edges (64).

22. An earphone assembly, characterized in that: The earphone assembly comprises: A charging device according to any one of claims 1 to 21; and An earphone (C) comprises a contact point (C1), wherein the earphone (C) compresses the elastic conductor (1) to bend and deform through the electrical contact surface (131) until the earphone (C) is set in the earphone slot (22) and the contact point (C1) is in abutment with the electrical contact surface (131).

23. The earphone assembly according to claim 22, characterized in that The earphone (C) further comprises: Headphone head (C2): and The ear handle portion (C3) is arranged on the earphone head (C2) and comprises a peripheral side surface (C31) and a bottom side surface (C32); the contact point (C1) is arranged on the peripheral side surface (C31); the peripheral side surface (C31) extends from the bottom side surface (C32) toward the earphone head (C2); and the bottom side surface (C32) is bent in a direction away from the earphone head (C2); the bottom side surface (C32) has a first position (C41) and a second position (C42); the first position (C41) is away from the earphone head (C2) relative to the second position (C42); The ear handle portion (C3) is close to the bottom of the earphone slot (22), and the cantilever (13) slides from the first position (C41) to the second position (C42) to the peripheral side surface (C31), and the cantilever (13) slides from the second position (C42) to the peripheral side surface (C31), and the inclination amplitude of the cantilever (13) is reduced.

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