Novel detachable microphone rod magnetic attraction conduction structure and circuit design method thereof

Abstract

A novel detachable microphone rod magnetic attraction conduction structure disclosed by the present invention comprises an earphone body and a fixed shell, a connection base is fixedly installed at the middle end of the left side of the earphone body, second contact magnetic blocks are fixedly installed at the two ends of the connection base, and first contact magnetic blocks are fixedly installed at the two ends of the right side of the fixed shell. A connecting wire is welded to the left side of the first contact magnetic block, and a liquid silica gel microphone rod is fixedly connected to the left side of the fixing shell. Through the arrangement of a second contact magnetic block and a first contact magnetic block, the fixing shell and the connecting base can be conveniently adsorbed and fixed by a person in the using process, and meanwhile, in the adsorption and fixing process of the second contact magnetic block and the first contact magnetic block, the fixing shell and the connecting base can be conveniently fixed; and the earphone body and the microphone can be conducted through the second contact magnetic block, the first contact magnetic block and the connecting wire, so that a person can conveniently connect and use the microphone and the earphone body.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, specifically to a novel detachable microphone rod magnetic conduction structure. Background Technology

[0002] With the application of wireless call center headsets and the continuous development of open-back headset technology, wireless open-back call center headsets are becoming smaller, more portable, and easier to store for different usage scenarios. Microphone booms (microphone booms) also need to ensure call quality while becoming smaller and easier to store.

[0003] Currently, wireless headsets often use copper pillars to conduct electricity between the headset and the microphone in the microphone boom. Since the copper pillars occupy the area on one side of the microphone boom, the magnetic attraction between the headset and the microphone boom is reduced, affecting the stability of the attraction between the headset and the microphone boom. At the same time, setting copper pillars on one side of the microphone boom will increase the cost of materials and welding processing to a certain extent. Summary of the Invention

[0004] The purpose of this invention is to provide a novel detachable microphone rod magnetic conduction structure, which uses the contact between magnets to achieve conduction between the earphone and the microphone, effectively ensuring the stability of the magnetic connection between the whole, while reducing material and welding processing costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel detachable microphone rod magnetic conduction structure, comprising an earphone body and a fixed shell, wherein a connecting base is fixedly installed at the middle of the left side of the earphone body, and a second contact magnet is fixedly installed at both ends of the connecting base; a first contact magnet is fixedly installed at both ends of the right side of the fixed shell; a connecting wire is welded to the left side of the first contact magnet; a liquid silicone microphone rod is fixedly connected to the left side of the fixed shell; the surface of the connecting wire is movably connected to the inner cavity of the liquid silicone microphone rod; and a microphone is fixedly installed on the left side of the connecting wire.

[0006] As a preferred embodiment, the liquid silicone microphone rod is fixedly connected to a shaped iron wire around its perimeter, and an aramid fiber mesh is fixedly connected to the surface of the liquid silicone microphone rod and to the outside of the shaped iron wire.

[0007] As a preferred embodiment, a protective shell is fixedly connected to the left side of the liquid silicone microphone rod, a dust cover is fixedly connected to the left side of the protective shell, and the left side of the microphone is fixedly installed at the middle of the right side of the dust cover.

[0008] As a preferred embodiment, a charging port is fixedly installed at the center of the front surface of the earphone body.

[0009] As a preferred embodiment, the right end of the earphone body is fitted with a liquid silicone protective sleeve.

[0010] As a preferred embodiment, a switch button is fixedly installed on the top of the earphone body.

[0011] Compared with the prior art, the present invention provides a novel detachable microphone magnetic conduction structure, which has the following beneficial effects: I. This invention, through the arrangement of a second contact magnetic block and a first contact magnetic block, facilitates the adsorption and fixation between the fixed shell and the connecting base during use. Simultaneously, during this adsorption and fixation process, the earphone body and microphone are connected via the second contact magnetic block, the first contact magnetic block, and the connecting wire. This facilitates the connection between the microphone and the earphone body. Because the earphone body and microphone are connected via the second contact magnetic block, the first contact magnetic block, and the connecting wire, there is no need to install an additional copper pillar on one side of the earphone body and the fixed shell for connection. This reduces the material and welding costs in the overall production process. Furthermore, it effectively avoids the reduction in magnetic area caused by the installation of copper pillars, thereby improving the stability of the magnetic connection between the fixed shell and the connecting base and reducing the probability of detachment during use.

[0012] Second, this invention, through the use of shaped iron wire and aramid fiber mesh, facilitates the bending of the liquid silicone microphone rod to the required angle during use, while simultaneously creating good tensile strength within the liquid silicone microphone rod. This effectively prevents breakage due to stress, thus extending the lifespan of the liquid silicone microphone rod. The protective shell and dust cover protect the microphone's surroundings, further extending its lifespan. The charging port facilitates charging of the headset, and the liquid silicone protective cover effectively improves the comfort of contact between the headset and the user's ear.

[0013] Secondly, the present invention provides a circuit design method for a novel detachable microphone magnetic conduction structure, comprising: Collect contact state data of the magnetic attraction points between the first contact magnetic block and the second contact magnetic block, extract the contact resistance value and contact alignment features from the contact state data, and determine the circuit conduction threshold between the first contact magnetic block and the second contact magnetic block based on the contact resistance value, so as to plan the effective contact area of ​​the magnetic attraction points. Based on the contact alignment features, the positioning calibration content of the effective contact area is generated to perform the position calibration control of the magnetic contact and simultaneously monitor the actual contact resistance in the effective contact area in real time. Based on the actual contact resistance and the circuit conduction threshold, capacitance adjustment parameters for the effective contact area are generated, and a conduction circuit between the first contact magnetic block and the second contact magnetic block is constructed according to the capacitance adjustment parameters.

[0014] In one possible implementation of the second aspect, the extraction of the contact resistance value and contact alignment features from the contact state data includes: The contact state data is filtered to obtain a stable contact signal; The original value of the contact resistance is obtained by performing resistance analysis on the stable contact signal; The original contact resistance value is calibrated to obtain the contact resistance value; The stable contact signal is converted into an image to obtain a contact image. Edge extraction is performed on the contact image to obtain the contact outline; The contact point contours are compared and analyzed to obtain contact point alignment features.

[0015] In one possible implementation of the second aspect, generating the positioning calibration content of the effective contact area based on the contact alignment features includes: The morphological features of the contact points are extracted to obtain the actual edge morphology of the effective contact area; Calculate the spatial deviation between the actual edge shape and the preset standard reference shape to obtain the shape deviation value; Analyze the shape offset direction between the actual edge shape and the preset standard reference shape; The region boundary coordinates of the effective contact area are detected, and the contact adjustment distance and contact adjustment direction corresponding to the contact point in the effective contact area are determined by combining the shape deviation value, the shape offset direction and the region boundary coordinates. By combining the contact adjustment distance and the contact adjustment direction, the positioning calibration content of the effective contact area is generated.

[0016] In one possible implementation of the second aspect, calculating the spatial deviation between the actual edge shape and a preset standard reference shape to obtain a shape deviation value includes: Extract the morphological points corresponding to the actual edge morphology and the preset standard reference morphology respectively to obtain the first morphological point and the second morphological point. Based on the second morphological point, the maximum diagonal spacing corresponding to the preset standard benchmark morphology is calculated; Combining the first morphological point, the second morphological point, and the maximum diagonal spacing, the spatial deviation between the actual edge shape and the preset standard reference shape is calculated using the following formula to obtain the morphological deviation value: ; Where T represents the morphological deviation value, This represents the coordinates of the i-th point in the first-order point set. This represents the coordinates of the second-mode point and the i-th point, where i represents the sequence number of the first-mode point, and N represents the number of first-mode points. This indicates the maximum diagonal spacing.

[0017] As can be seen, by extracting the contact resistance value and contact alignment features from the contact state data, this invention can obtain the connection status and alignment of the contacts between the first and second contact magnetic blocks, providing a data foundation for determining the subsequent circuit conduction threshold and planning the effective contact area. Based on the contact alignment features, this invention generates positioning calibration content for the effective contact area, allowing the magnetic contacts to quickly and accurately fit into the effective contact area, significantly improving contact stability, reducing signal transmission loss, and laying a solid foundation for efficient circuit operation. By combining the actual contact resistance with the circuit conduction threshold to generate capacitance adjustment content, this invention can adapt to subtle changes in the contact state, avoiding circuit conduction problems or overloads caused by abnormal resistance. Furthermore, by constructing a conduction circuit based on capacitance adjustment parameters, this invention can enhance the stability of current transmission between magnetic blocks. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view cross-sectional structural diagram of the fixed shell of the present invention; Figure 3 This is a schematic cross-sectional view of the left side of the liquid silicone microphone of the present invention; Figure 4 A flowchart illustrating a circuit design method for a novel detachable magnetically attracted conduction structure proposed in one embodiment of the invention; Figure 5 This is a schematic diagram of the process for constructing a conduction circuit provided by the present invention; In the diagram: 1. Earphone body; 2. Liquid silicone protective cover; 3. Charging port; 4. Shaping wire; 5. Connecting base; 6. Aramid fiber mesh; 7. Fixing shell; 8. Liquid silicone microphone rod; 9. Protective shell; 10. Dust cover; 11. Microphone; 12. Connecting wire; 13. First contact magnet; 14. Second contact magnet. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-3 As shown, the present invention provides a novel detachable microphone rod magnetic conduction structure, including an earphone body 1 and a fixed shell 7. A connecting base 5 is fixedly installed at the middle of the left side of the earphone body 1. A second contact magnet 14 is fixedly installed at both ends of the connecting base 5. A first contact magnet 13 is fixedly installed at both ends of the right side of the fixed shell 7. A connecting wire 12 is welded to the left side of the first contact magnet 13. A liquid silicone microphone rod 8 is fixedly connected to the left side of the fixed shell 7. The surface of the connecting wire 12 is movably connected to the inner cavity of the liquid silicone microphone rod 8. A microphone 11 is fixedly installed on the left side of the connecting wire 12.

[0021] In this technical solution, the arrangement of the second contact magnet 14 and the first contact magnet 13 facilitates the attraction and fixation between the fixed shell 7 and the connecting base 5 during use. Simultaneously, during this attraction and fixation process, the earphone body 1 and the microphone 11 are connected via the second contact magnet 14, the first contact magnet 13, and the connecting wire 12. This facilitates the connection between the microphone 11 and the earphone body 1. Since the earphone body 1 and the microphone 11 are connected via the second contact magnet 14, the first contact magnet 13, and the connecting wire 12, no additional copper pillar is required on one side of the earphone body 1 and the fixed shell 7 for connection. This reduces the material and welding costs in the overall production process and effectively avoids the reduction in magnetic area due to the installation of copper pillars, thereby improving the stability of the magnetic connection between the fixed shell 7 and the connecting base 5 and reducing the probability of detachment during use.

[0022] Based on Embodiment 1, the present invention is as follows: Figures 1-3 As shown, a liquid silicone microphone rod 8 is fixedly connected to all four sides with shaping wires 4. An aramid fiber mesh 6 is fixedly connected to the surface of the liquid silicone microphone rod 8 and outside the shaping wires 4. A protective shell 9 is fixedly connected to the left side of the liquid silicone microphone rod 8. A dust cover 10 is fixedly connected to the left side of the protective shell 9. The left side of the microphone 11 is fixedly installed at the middle of the right side of the dust cover 10. A charging port 3 is fixedly installed at the middle of the front surface of the earphone body 1. A liquid silicone protective cover 2 is fitted on the right end of the earphone body 1. A switch button is fixedly installed on the top of the earphone body 1.

[0023] In this technical solution, the use of the shaping wire 4 and aramid fiber mesh 6 facilitates the bending of the liquid silicone microphone rod 8 to the required angle during use, while also creating good tensile strength inside the liquid silicone microphone rod 8. This effectively prevents the liquid silicone microphone rod 8 from breaking due to stress, thus improving its service life. The protective shell 9 and dust cover 10 protect the area around the microphone 11, further extending its service life. The charging port 3 facilitates charging of the earphone body 1. The liquid silicone protective sleeve 2 effectively improves the comfort of contact between the earphone body 1 and the user's ear.

[0024] The working principle of this invention is as follows: By setting the second contact magnetic block 14 and the first contact magnetic block 13, it is convenient for personnel to adsorb and fix the fixed shell 7 and the connecting base 5 during use. During the adsorption and fixation process between the second contact magnetic block 14 and the first contact magnetic block 13, the earphone body 1 and the microphone 11 can be connected through the second contact magnetic block 14, the first contact magnetic block 13 and the connecting wire 12, thereby facilitating the connection between the microphone 11 and the earphone body 1. Since the earphone body 1 and the microphone 11 are connected through the second contact magnetic block 14, the first contact magnetic block 13 and the connecting wire 12, it is not necessary to install an additional copper pillar on one side of the earphone body 1 and the fixed shell 7 for connection, thereby reducing the material and welding costs in the overall production process. At the same time, it effectively avoids the reduction of the magnetic attraction area due to the installation of copper pillars, thereby improving the stability of the magnetic connection between the fixed shell 7 and the connecting base 5 and reducing the probability of the fixed shell 7 and the connecting base 5 falling off during use.

[0025] See Figure 4 The diagram illustrates a circuit design method for a novel detachable microphone magnetic conduction structure proposed in an embodiment of the present invention, comprising: S1. Collect contact state data of the magnetic attraction points between the first contact magnetic block and the second contact magnetic block, extract the contact resistance value and contact alignment features from the contact state data, and determine the circuit conduction threshold between the first contact magnetic block and the second contact magnetic block based on the contact resistance value, so as to plan the effective contact area of ​​the magnetic attraction points.

[0026] This invention extracts the contact resistance value and contact alignment features from the contact state data to obtain the connection status and alignment of the contacts between the first and second contact magnetic blocks. This provides a data foundation for determining the subsequent circuit conduction threshold and planning the effective contact area. The contact state data is the electrical signal feedback data of the magnetic attraction contacts between the first and second contact magnetic blocks, which is collected in real time by the detection component. The contact resistance value is the resistance value that reflects the conductivity of the magnetic attraction contacts. The contact alignment features are the morphological features that reflect the spatial alignment of the magnetic attraction contacts, such as the overlapping area of ​​the contacts and the offset direction.

[0027] As an embodiment of the present invention, the step of extracting the contact resistance value and contact alignment features from the contact state data includes: The contact state data is filtered to obtain a stable contact signal; The original value of the contact resistance is obtained by performing resistance analysis on the stable contact signal; The original contact resistance value is calibrated to obtain the contact resistance value; The stable contact signal is converted into an image to obtain a contact image. Edge extraction is performed on the contact image to obtain the contact outline; The contact point contours are compared and analyzed to obtain contact point alignment features.

[0028] The stable contact signal is the clean signal obtained by filtering the contact state data to remove interference signals; the original contact resistance value is the uncalibrated resistance value parsed from the stable contact signal; the contact image is an image that converts the stable contact signal into a visual representation of the contact situation; the contact contour is the contact edge line extracted from the contact image; and the contact alignment feature is feature information representing the degree of contact alignment obtained by comparing and analyzing the contact contour.

[0029] Furthermore, the contact state data can be filtered using a low-pass filtering algorithm to obtain a stable contact signal; the original contact resistance value can be obtained from the stable contact signal by calculating using Ohm's law; the original contact resistance value can be calibrated by comparing it with a standard resistance sample to obtain the contact resistance value; the stable contact signal can be converted into an image using the mapping relationship between signal strength and pixel brightness to obtain a contact image; the contact image can be edge-extracted using an edge detection algorithm to obtain the contact outline; and the contact alignment features can be obtained by comparing and analyzing the actual contact outline with the standard aligned outline using overlap calculation and offset measurement. For example, if the overlap area between the actual contact outline and the standard aligned outline is 80% and the offset direction is 3mm to the right horizontally, the contact alignment features are determined to be basically aligned but with a slight horizontal offset.

[0030] This invention determines the circuit conduction threshold between the first and second contact magnetic blocks based on the contact resistance value, thereby planning the effective contact area of ​​the magnetic contacts. This defines the resistance range that ensures normal circuit conduction and clarifies the required contact range. While improving the stability of the magnetic conduction structure, it reduces signal transmission problems caused by poor contact. The circuit conduction threshold is the maximum allowable contact resistance value that ensures stable signal transmission. The effective contact area refers to the contact range that meets the circuit conduction threshold requirement when the magnetic contacts between the first and second contact magnetic blocks are in contact.

[0031] As an embodiment of the present invention, determining the circuit conduction threshold between the first contact magnetic block and the second contact magnetic block based on the contact resistance value, in order to plan the effective contact area of ​​the magnetic attraction point, includes: Statistical analysis of the contact resistance values ​​yields the resistance distribution range. According to the preset signal transmission requirements, the circuit conduction threshold is determined from the resistance distribution range; The contact resistance value is compared with the circuit conduction threshold to determine the resistance compliance range; Collect the physical size parameters of the magnetic attraction point, and based on the physical size parameters, map the resistance compliance range to the spatial position of the magnetic attraction point; The effective contact area of ​​the magnetic contact point is obtained by defining the range of the spatial location.

[0032] Wherein, the resistance distribution range is the range of resistance values ​​obtained by statistically analyzing the contact resistance values; the resistance compliance range is the range of contact resistance values ​​that meet the circuit conduction threshold requirements; the spatial position is the position of the contact point corresponding to the resistance compliance range in physical space; and the effective contact area is the specific area range obtained by defining the spatial position.

[0033] Furthermore, the resistance distribution range can be obtained by statistically analyzing the maximum, minimum, and average values ​​of the contact resistance. Based on the allowable signal attenuation range in the circuit design, the circuit conduction threshold can be determined from the resistance distribution range. For example, if signal attenuation is severe when the resistance exceeds 5Ω, then 5Ω can be determined as the circuit conduction threshold. The resistance compliance range can be obtained by filtering out contact resistance values ​​less than or equal to 5Ω. The correspondence between resistance values ​​and contact area / position can be established using experimental data, combined with physical dimensional parameters such as the contact diameter and spacing, to map the resistance compliance range to the spatial position of the contact. The effective contact area of ​​the magnetic contact can be obtained by defining the boundary range of this spatial position; for example, a circular area with a radius of 5mm, based on the center of the contact, can be defined as the effective contact area.

[0034] S2. Based on the contact alignment features, generate the positioning calibration content of the effective contact area to perform the position calibration control of the magnetic contact and simultaneously monitor the actual contact resistance in the effective contact area in real time.

[0035] This invention generates positioning calibration content for the effective contact area based on the contact alignment features, enabling the magnetic contacts to quickly and accurately fit into the effective contact area, significantly improving contact stability, reducing signal transmission loss, and laying a solid foundation for efficient circuit operation. The positioning calibration content is specific operational information for adjusting the position of the magnetic contacts, such as adjustment direction and distance, determined based on the contact alignment features.

[0036] As an embodiment of the present invention, generating the positioning calibration content of the effective contact area based on the contact alignment features includes: The morphological features of the contact points are extracted to obtain the actual edge morphology of the effective contact area; Calculate the spatial deviation between the actual edge shape and the preset standard reference shape to obtain the shape deviation value; Analyze the shape offset direction between the actual edge shape and the preset standard reference shape; The region boundary coordinates of the effective contact area are detected, and the contact adjustment distance and contact adjustment direction corresponding to the contact point in the effective contact area are determined by combining the shape deviation value, the shape offset direction and the region boundary coordinates. By combining the contact adjustment distance and the contact adjustment direction, the positioning calibration content of the effective contact area is generated.

[0037] The actual edge morphology is obtained by extracting the morphology of the contact alignment features to obtain the edge contour of the effective contact area (such as the undulations, corners, and other contours of the actual edge of the effective contact area extracted in the alignment of electronic component contacts); the preset standard reference morphology is the standard edge contour that the effective contact area should have under ideal conditions (such as the regular rectangular edge contour of the area on the design drawing); the morphology deviation value is the quantified value of the morphological difference between the actual edge morphology and the preset standard reference morphology (such as a point on the actual edge deviating from the standard edge by 0.1mm); the morphology offset direction is the deviation direction between the actual edge morphology and the preset standard reference morphology (such as the actual edge shifting to the left relative to the standard edge); the area boundary coordinates are the position parameters of the boundary of the effective contact area in space (such as the two-dimensional coordinates of each vertex of the edge contour, such as (5,8), (10,8)); the contact adjustment distance and the contact adjustment direction are determined by combining the morphology deviation value, the morphology offset direction, and the area boundary coordinates to determine the required adjustment range and direction of the contact in the effective contact area (such as determining that the contact needs to be adjusted to the right by 0.2mm based on the deviation).

[0038] Furthermore, the actual edge shape of the effective contact area can be obtained by extracting the alignment features of the contact points using a machine vision system (e.g., when aligning the mobile phone screen with the motherboard contact points, the machine vision system captures an image and identifies the actual edge of the contact area). The morphological offset direction between the actual edge shape and a preset standard reference shape can be analyzed using an edge feature matching algorithm (e.g., comparing the curvature changes and inflection point positions of the two edges to determine whether the actual edge is offset clockwise or counterclockwise relative to the standard shape). The boundary coordinates of the effective contact area can be detected using an optical coordinate measuring instrument (e.g., during chip packaging). During the process, the optical coordinate measuring instrument accurately measures the X, Y, and Z axis coordinates of each point on the edge of the contact area; combined with the morphological deviation value, the morphological offset direction, and the area boundary coordinates, the contact adjustment distance and contact adjustment direction corresponding to the contact in the effective contact area are determined by a multi-parameter coupled calculation model (e.g., the model calculates that the contact needs to be adjusted by 0.05mm along the positive X-axis direction by integrating various data); combined with the contact adjustment distance and contact adjustment direction, the positioning calibration content of the effective contact area is generated according to the magnetic attraction characteristic calibration protocol (e.g., the protocol specifies that the magnetic pole switching frequency and adsorption position calibration data are obtained based on the adjustment parameters).

[0039] Furthermore, as an optional embodiment of the present invention, calculating the spatial deviation between the actual edge shape and the preset standard reference shape to obtain the shape deviation value includes: Extract the morphological points corresponding to the actual edge morphology and the preset standard reference morphology respectively to obtain the first morphological point and the second morphological point. Based on the second morphological point, the maximum diagonal spacing corresponding to the preset standard benchmark morphology is calculated; Combining the first morphological point, the second morphological point, and the maximum diagonal spacing, the spatial deviation between the actual edge shape and the preset standard reference shape is calculated using the following formula to obtain the morphological deviation value: ; Where T represents the morphological deviation value, This represents the coordinates of the i-th point in the first-order point set. This represents the coordinates of the second-mode point and the i-th point, where i represents the sequence number of the first-mode point, and N represents the number of first-mode points. This indicates the maximum diagonal spacing.

[0040] Wherein, the first morphological point and the second morphological point are the key contour feature points corresponding to the actual edge shape and the preset standard reference shape, respectively (e.g., the convex point on the actual edge shape is the first morphological point, and the corresponding reference point on the standard reference shape is the second morphological point); the maximum diagonal distance is the straight-line distance between the two feature points that are farthest apart on the contour corresponding to the preset standard reference shape (e.g., when the standard reference shape is a rectangle, the straight-line distance between its upper left vertex and lower right vertex is the maximum diagonal distance).

[0041] Furthermore, contour feature recognition algorithms can be used to extract the shape points corresponding to the actual edge shape and the preset standard reference shape, respectively, to obtain the first shape point and the second shape point (e.g., the algorithm identifies the corner point of the actual edge as the first shape point, and simultaneously identifies the corner point at the same position in the standard reference shape as the second shape point); based on the second shape point, a spatial distance calculation model is used to calculate the maximum diagonal distance corresponding to the preset standard reference shape (e.g., the model performs pairwise distance calculations on all second shape points and selects the result with the largest value as the maximum diagonal distance of the standard reference shape).

[0042] This invention performs position calibration control of the magnetic contact points and synchronously monitors the actual contact resistance in the effective contact area in real time. This dynamically ensures that the magnetic contact points are always in the optimal contact state, reducing signal transmission loss or equipment failure caused by poor contact, and significantly improving the overall stability and reliability of operation. The actual contact resistance is the resistance value formed by the contact between the magnetic contact point and the corresponding contact end in the effective contact area. Furthermore, the actual contact resistance in the effective contact area can be synchronously monitored in real time by a high-precision resistance sensing module.

[0043] S3. Based on the actual contact resistance and the circuit conduction threshold, generate the capacitance adjustment parameters of the effective contact area, and construct the conduction circuit between the first contact magnetic block and the second contact magnetic block according to the capacitance adjustment parameters.

[0044] This invention generates capacitance adjustment parameters by combining actual contact resistance and circuit conduction threshold, adapting to subtle changes in contact state and avoiding circuit conduction problems or overloads caused by abnormal resistance. Furthermore, by constructing a conduction circuit based on capacitance adjustment parameters, this invention enhances the stability of current transmission between magnetic blocks. Specifically, the steps for constructing the conduction circuit based on these capacitance adjustment parameters are as follows: controlling the capacitance element's input amplitude using a corresponding adjustment method (e.g., increasing the capacitance input when the contact resistance is higher than the conduction threshold, and decreasing it when it is lower), while simultaneously monitoring the current stability of the contact area in real time; when the circuit conduction reaches 95%, initiating a component locking procedure (e.g., fixing the capacitor input position with mechanical clips) to prevent capacitance parameter deviation caused by contact vibration; after circuit construction, applying an insulation layer to the magnetic block connection ends and verifying the current transmission efficiency using a dedicated testing instrument, thus completing the construction of the conduction circuit between the first and second contact magnetic blocks. For a more intuitive understanding of the circuit design method for the novel detachable magnetic magnetic conduction structure in this invention, please refer to [link to relevant documentation]. Figure 5 The diagram shown is a schematic representation of the circuit construction process in the circuit design method of the novel detachable microphone magnetic conduction structure provided by this invention. It should be noted that in this invention... Figure 5 The flowchart presented is only used for the circuit design method of the novel detachable microphone magnetic conduction structure to construct the conduction circuit processing flow, and is not limited to the circuit design method of the novel detachable microphone magnetic conduction structure in different actual application scenarios to construct the conduction circuit processing flow.

[0045] Furthermore, regarding the next... Figure 5 Detailed explanation of the circuit diagram: including voltage microphone V-MIC2, electret microphone MIC2, microphone negative terminal MIC1-N, audio signal port GPIO-12, and external microphone stick; The output pin of the voltage microphone V-MIC2 is connected to a resistor R26, the other end of the resistor R26 is connected to a resistor R27, the other end of the resistor R27 is connected to the output terminal of the electret microphone MIC2, and a capacitor C34 is connected in parallel between the other end of the resistor R26 and one end of the resistor R27, with the other end of the capacitor C34 grounded. The output pin of the electret microphone MIC2 is connected in parallel with a capacitor C42 and a diode E28. The other end of the capacitor C42 is grounded, and the input end of the diode E28 is grounded. The output pin of the microphone negative terminal MIC1-N is connected to a capacitor C33. The other end of the capacitor C33 is connected in parallel with a resistor R20, a capacitor C41, and a diode E27. The other ends of the resistor R20 and the capacitor C41, as well as the input terminal of the diode E27, are all grounded. The output pin of the audio signal port GPIO-12 is connected to a resistor R7, and the other end of the resistor R27 is connected in parallel with the output pin of the electret microphone MIC2. A selection switch is connected in parallel between the positive and negative input terminals of the external microphone.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A novel detachable microphone rod magnetic conduction structure, comprising an earphone body (1) and a fixing shell (7), characterized in that: A connecting base (5) is fixedly installed at the middle of the left side of the headphone body (1). A second contact magnet (14) is fixedly installed at both ends of the connecting base (5). A first contact magnet (13) is fixedly installed at both ends of the right side of the fixed shell (7). A connecting wire (12) is welded to the left side of the first contact magnet (13). A liquid silicone microphone rod (8) is fixedly connected to the left side of the fixed shell (7). The surface of the connecting wire (12) is movably connected to the inner cavity of the liquid silicone microphone rod (8). A microphone (11) is fixedly installed on the left side of the connecting wire (12).

2. The novel detachable microphone magnetic conduction structure according to claim 1, characterized in that: The liquid silicone microphone rod (8) is fixedly connected to a shaped iron wire (4) around its perimeter, and an aramid fiber mesh (6) is fixedly connected to the surface of the liquid silicone microphone rod (8) and to the outside of the shaped iron wire (4).

3. The novel detachable microphone magnetic conduction structure according to claim 1, characterized in that: The left side of the liquid silicone microphone rod (8) is fixedly connected to a protective shell (9), and the left side of the protective shell (9) is fixedly connected to a dust cover (10). The left side of the microphone (11) is fixedly installed at the middle of the right side of the dust cover (10).

4. The novel detachable microphone magnetic conduction structure according to claim 1, characterized in that: A charging port (3) is fixedly installed at the middle of the front surface of the earphone body (1).

5. The novel detachable microphone magnetic conduction structure according to claim 1, characterized in that: The right end of the earphone body (1) is fitted with a liquid silicone protective sleeve (2).

6. The novel detachable microphone magnetic conduction structure according to claim 1, characterized in that: A switch button is fixedly installed on the top of the headphone body (1).

7. A circuit design method for a novel detachable microphone magnetic conduction structure, wherein the circuit design method is performed according to any one of claims 1 to 6, characterized in that, The method includes: Collect contact state data of the magnetic attraction points between the first contact magnetic block and the second contact magnetic block, extract the contact resistance value and contact alignment features from the contact state data, and determine the circuit conduction threshold between the first contact magnetic block and the second contact magnetic block based on the contact resistance value, so as to plan the effective contact area of ​​the magnetic attraction points. Based on the contact alignment features, the positioning calibration content of the effective contact area is generated to perform the position calibration control of the magnetic contact and simultaneously monitor the actual contact resistance in the effective contact area in real time. Based on the actual contact resistance and the circuit conduction threshold, capacitance adjustment parameters for the effective contact area are generated, and a conduction circuit between the first contact magnetic block and the second contact magnetic block is constructed according to the capacitance adjustment parameters.

8. The method according to claim 7, characterized in that, The extraction of contact resistance values ​​and contact alignment features from the contact state data includes: The contact state data is filtered to obtain a stable contact signal; The original value of the contact resistance is obtained by performing resistance analysis on the stable contact signal; The original contact resistance value is calibrated to obtain the contact resistance value; The stable contact signal is converted into an image to obtain a contact image. Edge extraction is performed on the contact image to obtain the contact outline; The contact point contours are compared and analyzed to obtain contact point alignment features.

9. The method according to claim 7, characterized in that, The step of generating positioning calibration content for the effective contact area based on the contact point alignment features includes: The morphological features of the contact points are extracted to obtain the actual edge morphology of the effective contact area; Calculate the spatial deviation between the actual edge shape and the preset standard reference shape to obtain the shape deviation value; Analyze the shape offset direction between the actual edge shape and the preset standard reference shape; The region boundary coordinates of the effective contact area are detected, and the contact adjustment distance and contact adjustment direction corresponding to the contact point in the effective contact area are determined by combining the shape deviation value, the shape offset direction and the region boundary coordinates. By combining the contact adjustment distance and the contact adjustment direction, the positioning calibration content of the effective contact area is generated.

10. The method according to claim 9, characterized in that, The calculation of the spatial deviation between the actual edge shape and the preset standard reference shape to obtain the shape deviation value includes: Extract the morphological points corresponding to the actual edge morphology and the preset standard reference morphology respectively to obtain the first morphological point and the second morphological point. Based on the second morphological point, the maximum diagonal spacing corresponding to the preset standard benchmark morphology is calculated; Combining the first morphological point, the second morphological point, and the maximum diagonal spacing, the spatial deviation between the actual edge shape and the preset standard reference shape is calculated using the following formula to obtain the morphological deviation value: ； Where T represents the morphological deviation value, This represents the coordinates of the i-th point in the first-order point set. This represents the coordinates of the second-mode point and the i-th point, where i represents the sequence number of the first-mode point, and N represents the number of first-mode points. This indicates the maximum diagonal spacing.

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