Earphone charging seat
By employing a combination design of fixed connecting pieces, flat conductive pieces, elastic buffer pieces, and segmented support modules in the headphone charging dock, the problem of unstable connection during long-term use of the headphone charging dock is solved, achieving stability of electrical connection and reliability of charging.
Patent Information
- Application Number
- CN202520417941.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-11
AI Technical Summary
In the long-term use of existing headphone charging docks, the connection between the electrical connector and the headphone tailpiece becomes unstable, resulting in unstable circuit reactance and impedance characteristics during charging, which cannot meet the high standard of stable charging requirements.
The electrical connector design includes vertical fixed connecting plates, flat conductive plates, and elastic buffer plates. Combined with segmented support modules, it utilizes spatial geometry principles to form stable electrical connection tangent points. The elastic buffer plates provide timely linear torque support, ensuring the reliability and stability of the electrical connection.
It achieves stable electrical connection during headphone plugging and unplugging, avoids false connections or false positions, ensures the reliability and durability of the charging process, and meets high standards for stable charging requirements.
Smart Images
Figure CN223859236U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to charging equipment technical field, concretely relates to an earphone charging stand. BACKGROUND
[0002] In the prior art, the wireless earphone matched with the mobile intelligent terminal contains a high-precision audio decoding chip and a built-in charging battery for maintaining the power consumption of the chip, and a conductive tail plug at the tail of the wireless earphone is connected with the charging circuit in the earphone as a charging terminal. The transition curve formed by the conductive tail plug keeps the smoothness of the profile of the earphone tail. A blind hole-shaped accommodating cavity for accommodating the earphone body is formed in the battery box, and a charging stand is fixed at the bottom of the accommodating cavity. The base of the charging stand is fixed at the bottom of the cavity, and an electrical connector adapted to the power supply circuit in the battery box is fixed on the base. The electrical connector and the conductive tail plug are electrically connected to maintain the charging of the battery in the wireless earphone by the power supply in the battery box.
[0003] Maintaining stable charging is the core function of the charging stand. A connection terminal for charging a wireless earphone is disclosed in the patent document with the application number 2019218096401, which includes a base and a pair of electrical connectors. Each electrical connector includes a fixed connecting piece fixed to the base and an elastic connecting piece in contact with the conductive tail plug. The elastic connecting piece includes a connecting part connected to the fixed connecting piece and a conductive part in an arc shape connected to the connecting part. The arc-shaped conductive part is to form a perfect arc surface fit with the profile curve of the conductive tail plug. However, due to the limitations of material strength, electrical connector processing precision, charging stand assembly precision and plug-in clearance of the accommodating cavity, in actual application, as the use time increases and the plug-in frequency increases, the arc surface fit cannot be continuously maintained, and the conductive part and the profile curve will gradually form random or fixed unstable connections such as virtual connections or virtual positions between them, resulting in random changes in the fit area and position, causing unstable circuit reactance and impedance characteristics during charging, which cannot meet the high standard of stable charging maintenance, and poses a potential threat to the core function of the earphone charging stand. SUMMARY
[0004] In view of the above problems, the utility model embodiment provides an earphone charging stand to solve the technical problem of reliability and stability defects of the existing earphone charging stand during long-term use.
[0005] The utility model discloses an earphone charging stand, including electric connection piece, electric connection piece includes vertical fixed connecting piece, flat conductive sheet and elastic buffer piece, and the fixed end of flat conductive sheet is smoothly connected with the top of fixed connecting piece, and the included angle of fixed connecting piece and flat conductive sheet is acute angle, and elastic buffer piece is located between fixed connecting piece and flat conductive sheet, and elastic buffer piece includes first flat plate and second flat plate, and the fixed end of first flat plate is smoothly connected with the extension end of flat conductive sheet, and the extension end of first flat plate is smoothly fixed with the fixed end of second flat plate, and the extension end of second flat plate points to fixed connecting piece, and first flat plate and flat conductive sheet form acute angle or right angle, and second flat plate and fixed connecting piece form obtuse angle towards flat conductive sheet.
[0006] One embodiment of the utility model further includes a segmented support module, which is located within the range surrounded by the fixed connecting piece, the flat conductive sheet and the elastic buffer piece. The bottom edge of the segmented support module is fixedly connected to the middle part of the first flat plate of the elastic buffer piece. The end of the bottom edge of the segmented support module close to the flat conductive sheet is partially formed as an inclined surface. The included angle between the inclined surface and the first flat plate is acute. The included angle between one side edge of the segmented support module and the adjacent second flat plate is acute. The included angle between the other side edge of the segmented support module and the adjacent flat conductive sheet is acute.
[0007] In one embodiment of the utility model, the segmented support module is a rectangular plate or a group of parallel rectangular plates.
[0008] In one embodiment of the utility model, when the electric connection piece is in the limit protection state, the second flat plate abuts against one side edge of the segmented support module and the fixed connecting piece, respectively.
[0009] In one embodiment of the utility model, when the electric connection piece is in the limit protection state, the second flat plate abuts against the fixed connecting piece, and at the same time, one side edge of the segmented support module abuts against the flat conductive sheet.
[0010] In one embodiment of the utility model, the two sides of the fixed connecting piece are provided with directionally protruding clamping points at intervals along the extension direction.
[0011] In one embodiment of the utility model, two piercing bosses are provided at intervals on one side of the fixed connecting piece, and the other two piercing bosses are provided in an even symmetry manner on the other side.
[0012] The earphone charging stand of the embodiment of the utility model utilizes the principle that the tangent point is formed by the contact between the curved surface and the plane in the space geometry, and forms the plane of the battery box electric connection terminal matched with the earphone electric connection terminal. The stable elastic torque interval formed between the fixed connection piece and the straight conductive piece in the electric connection piece is used to resist the virtual connection or virtual position in the earphone plugging process and plugging into position, and always provides reliable electric connection tangent point position, so that the electric connection point position will not be interrupted due to the inevitable movement or wear between the earphone conductive tail plug and the electric connection piece. The core function of the earphone charging stand can be guaranteed. At the same time, in order to guarantee the straightness of the conductive plane provided by the electric connection piece, the timely linear torque support of the straight conductive piece is formed by the elastic buffer piece, the elastic torque resisting excessive insertion torque is provided at the end of the straight conductive piece, and the straight conductive piece will not be deformed quickly. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 As shown in the structure schematic view of the earphone charging stand of the embodiment of the utility model.
[0014] Figure 2 As shown in the structure schematic view of the earphone charging stand of the embodiment of the utility model.
[0015] Figure 3 As shown in the structure schematic view of the earphone charging stand of the embodiment of the utility model.
[0016] Figure 4 As shown in the structure schematic view of the earphone charging stand of the embodiment of the utility model.
[0017] Figure 5 As shown in the structure schematic view of the earphone charging stand of the embodiment of the utility model. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and apparent, the utility model is further described below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0019] The structure of the earphone charging stand of the embodiment of the utility model is as shown in the drawing. Figure 1 Figure 1 In the embodiment, the earphone charging base comprises a pair of electric connecting pieces 200 and a base 100 for fixing the electric connecting pieces. The base 100 comprises a horizontal bottom plate 110 and two parallel vertical standing plates 120, the bottom ends of the two vertical standing plates are fixed on the top ends of the horizontal bottom plate respectively, and the horizontal bottom plate and the two vertical standing plates jointly form a U-shaped frame in the same plane. On the opposite inner side walls of the two vertical standing plates, a fixing through slot 121 is formed along the extending direction of the vertical standing plate respectively, and each fixing through slot is used for fixing an electric connecting piece 200.
[0020] The structure of the electric connecting piece in the earphone charging base of the embodiment is shown in the figure. Figure 2 Figure 2 In the embodiment, the electric connecting piece 200 comprises a vertical fixing connecting piece 210 (in the same plane), a flat conductive piece 220 and an elastic buffer piece 230, the top end of the fixing connecting piece 210 is smoothly connected with the fixed end of the flat conductive piece 220, and the included angle between the fixing connecting piece 210 and the flat conductive piece 220 is an acute angle. The elastic buffer piece 230 is located between the fixing connecting piece 210 and the flat conductive piece 220, the elastic buffer piece 230 comprises a first flat plate 231 and a second flat plate 232, the fixed end of the first flat plate 231 is smoothly connected with the extending end of the flat conductive piece 220, the extending end of the first flat plate 231 is smoothly fixed with the fixed end of the second flat plate 232, the extending end of the second flat plate 232 points to the fixing connecting piece 210, the first flat plate 231 forms an acute angle or a right angle with the flat conductive piece 220, and the second flat plate 232 forms an obtuse angle with the fixing connecting piece 210 in the direction of the flat conductive piece 220.
[0021] In actual application, the fixing connecting piece 210 is vertically inserted into the fixing through slot 121 in the vertical standing plate 120 for fixation, and the bottom part of the fixing through slot is penetrated to form an electric connection with the power supply circuit in the charging box. The flat conductive piece 220 forms a tangent contact with the tail plug arc surface of the conductive tail plug of the plug-in earphone. In the earphone insertion process, the conductive tail plug of the earphone first presses the flat conductive piece 220, so that the extending end of the flat conductive piece 220 continuously approaches the fixing connecting piece 210, and in the approaching process, the free end of the elastic buffer piece 230 (i.e. the extending end of the second flat plate 232) abuts against the fixing connecting piece 210, and with the flat conductive piece 220 continuously approaching the fixing connecting piece 210, part of the elastic buffer piece 230 (i.e. the second flat plate 232) is close to the fixing connecting piece 210 until the elastic buffer piece 230 is attached to the fixing connecting piece 210.
[0022] The earphone charging stand of the embodiment of the utility model utilizes the principle that a tangent point is formed by the contact between a curved surface and a plane in space geometry, and forms the plane of the battery box electric connection terminal matched with the curved surface of the earphone electric connection terminal. The stable elastic torque interval formed between the fixed connection piece and the flat conductive piece in the electric connection piece is used to resist the virtual connection or virtual position in the earphone plugging process and when the earphone is plugged in, reliable electric connection tangent point positions are always provided, so that the electric connection point positions will not be interrupted due to the inevitable movement or wear between the earphone conductive tail plug and the electric connection piece. The core function of the earphone charging stand can be ensured. At the same time, in order to ensure the flatness of the conductive plane provided by the electric connection piece, the timely linear torque support of the flat conductive piece is formed by the elastic buffer piece, the elastic torque that can resist the excessive insertion torque is provided at the end of the flat conductive piece, and the flat conductive piece will not be deformed quickly.
[0023] Another structure of the electric connection piece in the earphone charging stand of the embodiment of the utility model is shown in Figure 3 . Figure 3 In the above embodiment, a segmented support module 240 is further included, the segmented support module 240 includes a rectangular flat plate (for example, a square or a trapezoid) with the same height as the flat conductive piece 220, or a group (at least two, as shown in the figure) of parallel rectangular flat plates (the outermost distance has the same height as the flat conductive piece 220). The segmented support module 240 is located in the range surrounded by the fixed connection piece 210, the flat conductive piece 220 and the elastic buffer piece 230, the bottom edge of the segmented support module 240 is fixedly connected with the middle part of the first flat plate 231 of the elastic buffer piece 230 (it can be ensured that when one side of the segmented support module 240 abuts against the extension end of the adjacent second flat plate 232, the remaining parts of the two have a gap), one end of the bottom edge of the segmented support module 240 close to the flat conductive piece 220 is partially formed into an inclined surface 241, the included angle between the inclined surface 241 and the first flat plate 231 is an acute angle, the included angle between one side of the segmented support module 240 and the adjacent second flat plate 232 is an acute angle, and the included angle between the other side of the segmented support module 240 and the adjacent flat conductive piece 220 is an acute angle.
[0024] In actual application, the elastic support process of the electric connection piece is shown in Figure 4 . Figure 4In the state one, the earphone is not pressed against the electric connecting piece 200, and the second flat plate 232 of the elastic buffer sheet 230 only points to the fixed connecting sheet 210. In the state two, the earphone is pressed against the electric connecting piece 200, and the second flat plate 232 of the elastic buffer sheet 230 starts to resist the fixed connecting sheet 210. In the state three, the earphone is further pressed, and the elastic buffer sheet 230 enters the limit protection state, and the second flat plate 232 provides corresponding supporting force to the flat conductive sheet 220 by approaching the fixed connecting sheet 210 to keep the flat conductive sheet 220 flat, until the second flat plate 232 resists one side of the segmented supporting module 240. In the state four, the earphone is further pressed, and the electric connecting piece enters the limit protection state, and when the second flat plate 232 is attached to the fixed connecting sheet 210 and resists one side of the segmented supporting module 240, the other side of the segmented supporting module 240 is attached to the flat conductive sheet 220, so as to ensure that the flat conductive sheet 220 is directly supported.
[0025] According to the phase change characteristics of the earphone plugging torque in the charging process, the earphone charging base forms segmented adjustment of the supporting force of the flat conductive sheet. Through the positional relationship and angle relationship formed by the segmented supporting module, the fixed connecting sheet, the flat conductive sheet and the elastic buffer sheet, the flat conductive sheet is provided with overall free support, end limit protection support and overall limit protection support in stages, so that the flat conductive sheet can overcome the deformation torque in each stage of stress, and the flat conductive sheet is prevented from deforming.
[0026] Those skilled in the art can understand that the fixed connecting sheet 210, the flat conductive sheet 220 and the elastic buffer sheet 230, and the segmented supporting module 240 should be in the same plane, and the continuous extension surface formed therebetween does not have nonlinear distortion.
[0027] Another structure of the electric connecting piece in the earphone charging base of an embodiment of the utility model is shown in Figure 5 In Figure 5 In the embodiment, the protruding clamping points 211 are arranged on both sides of the fixed connecting sheet 210 in the extension direction, and the protruding clamping points 211 ensure the stability of the electric connecting piece 200 after being assembled into the vertical plate fixed slot 121.
[0028] As shown in Figure 5 In the embodiment of the utility model, two piercing bosses are arranged on one side of the fixed connecting sheet 210, and the other two piercing bosses are arranged on the other side in an even symmetry manner. In actual application, the symmetric piercing bosses ensure that the normality degree of the fixed connecting sheet 210 inserted into the fixed slot 121 of the plastic base meets the design requirement.
[0029] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An earphone charging stand comprising an electrical connector, characterized in that, The electric connector comprises a vertical fixed connecting piece, a flat conductive piece and an elastic buffer piece, the top end of the fixed connecting piece is smoothly connected with the fixed end of the flat conductive piece, the included angle between the fixed connecting piece and the flat conductive piece is an acute angle, the elastic buffer piece is located between the fixed connecting piece and the flat conductive piece, the elastic buffer piece comprises a first flat plate and a second flat plate, the fixed end of the first flat plate is smoothly connected with the extended end of the flat conductive piece, the extended end of the first flat plate is smoothly fixed with the fixed end of the second flat plate, the extended end of the second flat plate points to the fixed connecting piece, the first flat plate and the flat conductive piece form an acute angle or a right angle, and the second flat plate and the fixed connecting piece form an obtuse angle towards the flat conductive piece.
2. The earphone charging stand of claim 1, wherein, The electric connector further comprises a segmented support module, the segmented support module is located in the range surrounded by the fixed connecting piece, the flat conductive piece and the elastic buffer piece, the bottom edge of the segmented support module is fixedly connected with the middle part of the first flat plate of the elastic buffer piece, one end of the bottom edge of the segmented support module close to the flat conductive piece is partially formed as an inclined surface, the included angle between the inclined surface and the first flat plate is an acute angle, one side of the segmented support module and the adjacent second flat plate form an acute angle, and the other side of the segmented support module and the adjacent flat conductive piece form an acute angle.
3. The earphone charging stand of claim 2, wherein, The segmented support module is a rectangular plate or a group of parallel rectangular plates.
4. The earphone charging stand of claim 2, wherein, When the electric connector is in the limit protection state, the second flat plate and one side of the segmented support module and the fixed connecting piece are in contact, respectively.
5. The earphone charging stand of claim 2, wherein, When the electric connector is in the limit protection state, the second flat plate and the fixed connecting piece are in contact, and at the same time that one side of the segmented support module and the flat conductive piece are in contact, the other side of the segmented support module and the flat conductive piece are in contact.
6. The earphone charging stand of any one of claims 1 to 5, wherein, Directional protruding clamping points are arranged on both sides of the fixed connecting piece in the extension direction.
7. The earphone charging stand of claim 6, wherein, Two piercing bosses are arranged on one side of the fixed connecting piece, and the other two piercing bosses are arranged on the other side in an even symmetry manner.