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CN-122027945-A - Charging bin of self-adaptation earphone specification

CN122027945ACN 122027945 ACN122027945 ACN 122027945ACN-122027945-A

Abstract

The invention relates to the technical field of wireless earphones, in particular to a charging bin with a self-adaptive earphone specification, which comprises a bin body, a flexible adapting assembly, a magnetic field control assembly, a contact matrix layer and a controller, wherein a self-adaptive cavity is arranged in the bin body, and the flexible adapting assembly comprises a flexible bag body and a magnetorheological material. According to the invention, the flexible capsule body containing the magnetorheological material, the magnetic field control assembly surrounding the capsule body, the contact matrix layer attached to the surface of the capsule body and the controller are arranged, so that the full-automatic shape attachment and electrical identification of the charging bin to the contacts of the earphone with any specification are realized, and the magnetorheological material is converted into a high magnetic field solid state locking state through magnetic field control after identification, so that the attachment form of the contact matrix layer and the earphone is solidified and locked, the stability of electrical connection is improved, and poor manual adjustment and contact is avoided. The problem that the earphone charging bin is poor in compatibility due to fixed contact specifications or limited in adjustment and the charging reliability is affected due to unstable contact is solved.

Inventors

  • LI BIBING

Assignees

  • 东莞市汇恩电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (10)

  1. 1. A charging bin of adaptive headset specification, comprising: the self-adaptive bin comprises a bin body (1), wherein a self-adaptive cavity (11) is arranged in the bin body (1); The flexible adapting assembly (2) is arranged in the self-adaptive cavity (11), and the flexible adapting assembly (2) comprises a sealed flexible bag body and magnetorheological materials filled in the flexible bag body; The magnetic field control assembly (3) is circumferentially arranged on the periphery of the flexible bag body and is used for generating a controllable magnetic field acting on the magnetorheological material; The contact matrix layer (4) is adhered to the upper surface of the flexible bag body, and the contact matrix layer (4) comprises a plurality of conductive units which are arranged in an array, insulated from each other and addressed independently; The controller is respectively and electrically connected with the magnetic field regulating and controlling assembly and the contact matrix layer (4); Wherein the controller is configured to: And controlling the magnetic field regulating and controlling component to adjust the magnetic field intensity according to the feedback signal from the contact matrix layer (4) so as to enable the magneto-rheological material to be switched between a low magnetic field liquid state flow state and a high magnetic field solid state locking state.
  2. 2. The charging bin of claim 1, wherein the controller comprises an impedance mapping module configured to perform a scan operation based on spatial topology association logic, comprising: Applying detection pulses to each conductive unit in the contact matrix layer (4) according to a preset scanning sequence to obtain real-time contact impedance values of each conductive unit; mapping the acquired contact impedance value to a two-dimensional coordinate system corresponding to the space position of the contact matrix layer (4) to generate an impedance distribution topological graph; Identifying a communication area with contact impedance values continuously lower than a first preset threshold value in the impedance distribution topological graph, and identifying the communication area as a physical projection area corresponding to a charging contact of the earphone; And when the relative difference of the contact impedance values between any adjacent conductive units in the communication area is lower than a preset percentage and the average contact impedance value of the communication area is lower than a second preset threshold, the controller judges the communication area as an effective contact cluster.
  3. 3. The charging cartridge of claim 2, wherein the controller is further configured to perform a dynamic weighted evaluation of the active contact clusters to determine a target charging path, comprising: Allocating a comprehensive weight value to each conductive unit in the effective contact cluster, wherein the comprehensive weight value is calculated based on the factors of the historical accumulated power-on times factor, the current temperature rise rate factor and the contact pressure distribution uniformity factor of the corresponding conductive unit; And based on the comprehensive weight value, avoiding the conductive units which are positioned at the edge of the effective contact cluster and have low comprehensive weight value, and selecting at least one conductive unit combination which is positioned inside the effective contact cluster and has high comprehensive weight value so as to form an optimized charging current transmission path.
  4. 4. A charging cartridge according to any one of claims 1 to 3, wherein the magnetic field control assembly is configured to generate a non-uniform magnetic field in the space in which the flexible bladder is located, wherein the magnetic induction in the central region of the flexible bladder is 1.2 to 1.5 times that in the peripheral region of the flexible bladder; the magnetic field strength generated by the magnetic field regulating and controlling component is controlled to enable the apparent viscosity of the magnetorheological material to be lower than a first viscosity threshold value under the low magnetic field liquid state flow dynamic state; In the high magnetic field solid state locked state, the magnetic field strength generated by the magnetic field regulating and controlling component is instantaneously enhanced to enable the yield stress of the magnetorheological material to be higher than a first stress threshold value.
  5. 5. The adaptive headset specification charging cartridge of claim 4, wherein the controller implements closed-loop steady-state compensation control of the magnetic field regulation assembly based on current feedback, comprising: monitoring a driving current signal of the magnetic field regulation and control component in real time; deducing the state change of the internal microstructure of the magnetorheological material against external shearing force according to the fluctuation characteristics of the driving current signals; When the fluctuation range of the state change exceeds the preset tolerance, the driving signal of the magnetic field regulating and controlling component is regulated to strengthen the magnetic field until the fluctuation range of the state change is recovered to the preset tolerance.
  6. 6. A charging cartridge according to claim 2 or 3, wherein the controller further comprises an impedance degradation monitoring module configured to: recording a starting impedance value and an ending impedance value of each conductive unit in a plurality of historical charging periods; calculating a degradation trend parameter of the impedance of each conductive element over time based on the record; And marking the conducting unit with the degradation trend parameter exceeding the early warning threshold value as a performance early warning unit, and reducing or eliminating the selection priority of the performance early warning unit when planning the charging current transmission path.
  7. 7. The charging bin of claim 6, wherein the controller is configured to perform a load balancing contact rotation strategy, in particular: And in the conductive unit set covered by the effective contact clusters, the current charging current is preferentially distributed to the conductive units with lower accumulated energizing loads according to the accumulated energizing load histories of the conductive units so as to realize the equalization of the whole service life of the contact matrix layer (4).
  8. 8. The charging bin of claim 1, wherein the controller triggers the high magnetic field type solid state locking state based on a composite sensing signal, wherein the triggering conditions comprise: a Hall sensor arranged in the bin body (1) detects that the magnetic field change rate exceeds a first change rate threshold value, and The pressure sensor arranged in the flexible bag body detects that the pressure change exceeds a first pressure threshold value; When the event that the magnetic field change rate exceeds a first change rate threshold and the event that the pressure change exceeds a first pressure threshold occur sequentially within a preset time window, the controller controls the magnetic field regulation component to enhance the magnetic field to enter the high magnetic field solid state locking state.
  9. 9. The charging bin of claim 2, wherein the controller further comprises an identity verification module configured to: generating an impedance characteristic mark of the currently placed earphone according to the geometric outline of the effective contact cluster and the contact impedance value distribution characteristic of each conductive unit inside the effective contact cluster; comparing the impedance characteristic identifier with an authorized device characteristic identifier pre-stored in the controller; And controlling the charging current transmission path to be conducted only when the comparison matching degree is higher than the safety threshold, otherwise, keeping to be disconnected and generating prompt information.
  10. 10. The charging bin of claim 1, wherein the controller is further configured to perform a morphology reset operation after the earphone is removed, comprising: After the high magnetic field solid state locking state is released, controlling the magnetic field regulating and controlling assembly to generate an alternating attenuation magnetic field with frequency higher than power frequency; The alternating attenuation magnetic field is used for eliminating residual magnetism in the magnetorheological material and assisting the flexible bag body and the magnetorheological material in the flexible bag body to recover to an initial flat state under the action of gravity and surface tension.

Description

Charging bin of self-adaptation earphone specification Technical Field The invention relates to the technical field of wireless earphones, in particular to a charging bin with a self-adaptive earphone specification. Background With the popularization of real wireless earphone, the market emerges a plurality of brands and models, and the position, shape, size and spacing of the charging contacts (i.e. the charging interface specification) of the real wireless earphone are not yet formed into a unified standard. Currently, the mainstream earphone charging bins on the market generally employ fixed or limited adjustable physical contact schemes. For example, by providing a fixed-position resilient metal thimble in the housing, or by providing a limited number of sets of contact modules for manual selection by the user. However, such prior art solutions have inherent drawbacks in that the fixed contacts cannot be adapted to headphones with different contact specifications, resulting in no charging, while the limited adjustable solutions (e.g. manual sliding modules) require user intervention, are cumbersome to operate, and have discrete and limited adjustable gear positions or positions, which still make it difficult to cover all potential non-standard headphone models. More importantly, even though the positions of the earphone contacts are generally matched, microscopic displacement or contact pressure fluctuation can be generated between the earphone and the charging contacts due to vibration and shaking in the transportation or moving process, so that poor contact, charging interruption and even spark ignition are caused, and the charging reliability and safety are affected. Therefore, how to design a universal charging bin which can be fully automatically and highly accurately self-adaptive to different specifications of headphones and can provide stable and reliable physical contact and electrical connection in the charging process is a technical problem to be solved in the field. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the charging bin with the self-adaptive earphone specification, which realizes full-automatic shape fitting and electrical identification of the charging bin to the earphone contacts with any specification by arranging the flexible capsule body containing the magneto-rheological material, the magnetic field control component surrounding the capsule body, the contact matrix layer attached to the surface of the capsule body and the controller, and converts the magneto-rheological material into a high magnetic field solid state locking state through magnetic field control after identification, thereby solidifying and locking the fitting form of the contact matrix layer and the earphone, improving the stability of electrical connection and avoiding manual adjustment and poor contact. The problem that the earphone charging bin is poor in compatibility due to fixed contact specifications or limited in adjustment and the charging reliability is affected due to unstable contact is solved. In order to achieve the above object, a charging bin of the present invention for adapting to earphone specifications includes: The bin body is internally provided with a self-adaptive cavity; The flexible adapting assembly is arranged in the self-adaptive cavity and comprises a sealed flexible bag body and magnetorheological materials filled in the flexible bag body; The magnetic field control assembly is circumferentially arranged on the periphery of the flexible bag body and used for generating a controllable magnetic field acting on the magnetorheological material; the contact matrix layer is attached to the upper surface of the flexible bag body and comprises a plurality of conductive units which are arranged in an array, insulated from each other and addressed independently; The controller is respectively and electrically connected with the magnetic field regulating and controlling assembly and the contact matrix layer; Wherein the controller is configured to: And controlling the magnetic field regulating and controlling component to adjust the magnetic field intensity according to the feedback signal from the contact matrix layer so as to enable the magnetorheological material to be switched between a low magnetic field liquid state flow state and a high magnetic field solid state locking state. Preferably, the controller includes an impedance mapping module configured to perform a scan operation based on spatial topology association logic, comprising: applying detection pulses to each conductive unit in the contact matrix layer according to a preset scanning sequence to obtain real-time contact impedance values of each conductive unit; mapping the acquired contact impedance value to a two-dimensional coordinate system corresponding to the contact matrix layer space position to generate an impedance distribution topological graph; Identifying a communication ar