A bluetooth hearing aid

Abstract

The application provides a Bluetooth hearing aid and belongs to the technical field of hearing aids. The hearing aid comprises a hearing aid body and a hollow framework. The hearing aid body is provided with two groups and is connected with two ends of the hollow framework respectively. The hearing aid body comprises a main body shell one. An in-ear sound collecting device is fixedly installed on an inner wall of one end of the main body shell one. A bone conduction sound collecting device is arranged in the other end of the main body shell one. The end wall of the hollow framework is clamped with the top clamping hole of the main body shell one. A PCB integrated board is fixedly installed on the inner wall of the middle part of the main body shell one. The in-ear sound collecting device and the bone conduction sound collecting device are integrated. The sound collecting mode is flexibly switched by cooperating with a central control module, a double-mode Bluetooth hearing aid module and an APP input module. The pull wire assembly, the constant torque spring and the wire clamping mechanism are arranged to realize the wearing length adjustment and the automatic winding of the wire, so as to solve the problems of single sound collecting mode, unadjustable wearing length and easy winding and knotting of the wire of the existing hearing aid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hearing aids, in particular to a Bluetooth hearing aid. BACKGROUND

[0002] At present, the sound transmission mode of the traditional hearing aid is relatively single, and a single in-ear or bone conduction type sound transmission is mostly used.

[0003] Although the in-ear hearing aid can directly transmit sound into the ear canal, long-term wearing can easily cause the ear canal to be hot and uncomfortable, and it is easy to fall off in the scene of sports and the like, the bone conduction hearing aid transmits sound through the skull, which can avoid the problem of ear canal blockage, but long-term wearing can easily cause facial discomfort, and it is difficult to accurately receive certain audio, so it is difficult to flexibly switch between the two sound transmission modes according to the real-time needs of the user, and the use requirements in different scenes cannot be considered, and the structure of the existing hearing aid is fixed, and there is no adjustable wearing length design, so when the user switches between daily use and sports scenes, or needs to adjust the wearing size due to the difference in head circumference, it is often difficult to achieve convenient adjustment, or it is too tight to cause discomfort, or it is too loose to easily fall off, which seriously affects the use experience, and the wire storage problem is prominent, the wire length of most products is fixed, and it is easy to be tangled and knotted when idle, and the length cannot be flexibly adjusted according to the actual needs when used.

[0004] Therefore, the present application provides a Bluetooth hearing aid to meet the needs. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a Bluetooth hearing aid, which integrates an in-ear sound transmission device and a bone conduction sound transmission device, cooperates with a central control module, a dual-mode Bluetooth hearing aid module and an APP input module to realize flexible switching of the sound transmission mode, and sets a stay wire assembly, a constant torque spring and a wire clamping mechanism to realize wearing length adjustment and automatic winding of the wire, so as to solve the problems of single sound transmission mode, non-adjustable wearing length and easy tangling and knotting of the wire of the existing hearing aid.

[0006] To solve the above technical problems, the present application provides the following technical scheme:

[0007] A Bluetooth hearing aid, comprising a hearing aid main body and a hollow skeleton, the hearing aid main body is provided in two groups and is connected with the two ends of the hollow skeleton respectively, the hearing aid main body comprises a main body shell one, an in-ear sound transmission device is fixedly installed on the inner wall of one end of the main body shell one, a bone conduction sound transmission device is arranged in the inner part of the other end of the main body shell one, the end wall of the hollow skeleton is clamped with the top clamping hole of the main body shell one, a PCB integrated board is fixedly installed on the inner wall of the middle part of the main body shell one, and a central control module, a charging module, an audio conversion module, a dual-mode Bluetooth hearing aid module and an APP input module are arranged on the PCB integrated board.

[0008] Optionally, the outer end wall of the main shell one is clamped with the main shell two, the inner wall of the middle part of the main shell two is provided with a pull wire assembly, the pull wire assembly comprises a current collector ring, the current collector ring is fixedly connected with the inner wall of the main shell two, the current collector ring is provided with a positive ring with positive electricity and a negative ring with negative electricity, the top outer wall of the current collector ring is rotatably connected with a wire roller, and the middle part of the current collector ring penetrates the wire roller, the positive ring and the negative ring are rotatably installed on the positive ring and the negative ring, and the electrode strip penetrates the wire roller and communicates with the inside thereof.

[0009] Optionally, the inner wall of the middle part of the wire roller is fixedly installed with a winding plate, the winding plate is provided with a wire hole one on both sides, the winding plate is wound with a lead wire through the two groups of wire holes one, and the middle part of the lead wire is wound on the winding plate, the two groups of electrode strips are electrically connected with the lead wire, the side wall of the wire roller is provided with a wire hole two, and the both ends of the lead wire are wound on the outer wall of the wire roller through the wire hole two, the PCB integrated board is electrically connected with the lead wire, and the lead wire penetrates the inside of the hollow skeleton.

[0010] Optionally, the inner wall of the main shell two is fixedly installed with a positioning seat, the inner wall of the positioning seat is installed with a constant torque clockwork, one end of the constant torque clockwork is fixedly connected with the middle part of the positioning seat, and the other end is fixedly connected with the bottom outer wall of the wire roller.

[0011] Optionally, the bone conduction sound transmission device comprises a skin cover, the skin cover is slidably connected with the inner wall of the main shell one, the skin cover is provided with a shielding cover, the shielding cover is fixedly installed with a magnetic block two on the inner wall of the middle part, the magnetic block two is sleeved with a winding, the winding is wound with a winding wire on the outer wall, the winding is fixedly installed with a elastic sheet one on the end wall, the elastic sheet one is fixedly installed with an elastic sheet two on the front end face, and the elastic sheet two is fixedly connected with the inner wall of the skin cover through bolts, the elastic sheet two is fixedly installed with a guide ring on the front end face of the middle part, and the guide ring is fixedly installed with a guide sheet on the front end.

[0012] Optionally, the inner wall of the middle part of the skin cover is provided with a sound guide groove, and the guide sheet is closely attached to the sound guide groove, the peripheral wall of the skin cover is provided with a spring mounting groove, the spring mounting groove is fixedly installed with a spring on the inner wall, the inner wall of the main shell two is fixedly installed with a groove cover plate, and the other end of the spring is fixedly connected with the side wall of the groove cover plate, the outer wall of the groove cover plate is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a metal block one, the metal block one is magnetically matched with the magnetic block two, the outer end wall of the main shell two is fixedly installed with a sound receiver, and the sound receiver is electrically connected with the PCB integrated board, the outer wall of the skin cover is fixedly installed with a leather cover, and the other end of the leather cover is fixedly connected with the side wall of the main shell one.

[0013] Optionally, the sound receiver is output connected with the central control module, and the central control module is output connected with the in-ear sound transmission device and the bone conduction sound transmission device.

[0014] Optionally, the audio conversion module is connected with the central control module, the central control module is connected with the dual-mode Bluetooth hearing aid module, and the dual-mode Bluetooth hearing aid module is connected with the in-ear sound collection device and the bone conduction sound collection device.

[0015] Optionally, the dual-mode Bluetooth hearing aid module is connected with the APP input module, and the APP input module is connected with the in-ear sound collection device and the bone conduction sound collection device.

[0016] Optionally, the central control module is connected with the charging module.

[0017] Compared with the prior art, the present application has at least the following beneficial effects:

[0018] In the above scheme, by integrating the in-ear sound collection device and the bone conduction sound collection device in the hearing aid body, and cooperating with the central control module, the dual-mode Bluetooth hearing aid module and the APP input module, the problem of single sound collection mode of the traditional hearing aid is solved, the user can flexibly switch the sound collection mode according to the scene requirement, and the use requirement of different scenes is considered, at the same time, the elastic structure of the first elastic sheet and the second elastic sheet in the bone conduction sound collection device can buffer the vibration, and the sound collection stability is ensured, and the wearing experience is further improved.

[0019] By setting the pull wire assembly, the constant torque spring and the wire clamping mechanism, the problem of fixed structure and unadjustable wearing length of the traditional hearing aid is solved, when the wearing length needs to be adjusted, the hollow frame is pulled out to pull out the lead wire, the length of the lead wire can be flexibly adjusted according to the head circumference difference or the scene requirement, and after adjustment, the lead wire is locked by the wire clamping mechanism to fix the length, and the sound collection is carried out by cooperating with the in-ear sound collection device, which can meet the wearing requirement of each scene, when idle or need to reset, the wire clamping mechanism is loosened, the stress of the constant torque spring can drive the wire roller to automatically wind the lead wire, so that the hollow frame and the hearing aid body are re-cooperated, thereby avoiding the problem that the size is too tight to cause discomfort, and preventing the problem that the size is too loose to easily fall off, the use convenience is significantly improved, and the problems of fixed length of the lead wire of the traditional hearing aid and easy winding and knotting when idle are solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to implement and use the present application.

[0021] Figure 1 It is a schematic diagram of a stereo structure of a Bluetooth hearing aid;

[0022] Figure 2 It is a schematic diagram of the structure of a hearing aid body;

[0023] Figure 3 It is a side view of the hearing aid body;

[0024] Figure 4 Split view of the hearing aid body

[0025] Figure 5 Mounting position of the pull cord assembly

[0026] Figure 6 Assembly view of the in-ear sound transmission device

[0027] Figure 7 Assembly view of the PCB integrated board

[0028] Figure 8 Mounting position of the pull cord assembly on the body shell 2

[0029] Figure 9 Split view of the hearing aid body

[0030] Figure 10 Structure view of the pull cord assembly

[0031] Figure 11 Assembly view of the constant torque spring and the wire roller

[0032] Figure 12 Internal structure view of the wire roller

[0033] Figure 13 Bottom structure view of the wire roller

[0034] Figure 14 Mounting view of the components on the collector ring

[0035] Figure 15 Assembly view of the bone conduction sound transmission device

[0036] Figure 16 Cooperation view of the metal block 1 and the bone conduction sound transmission device

[0037] Figure 17 Structure view of the bone conduction sound transmission device

[0038] Figure 18 Mounting view of the guide ring and the guide sheet

[0039] Figure 19 Principle split right view of the bone conduction sound transmission device

[0040] Figure 20 Principle split left view of the bone conduction sound transmission device

[0041] Figure 21 Principle plan view of the bone conduction sound transmission device

[0042] Figure 22Assembly cross-section view of bone conduction sound transmission device;

[0043] Figure 23 State diagram when the skin cover is open;

[0044] Figure 24 State diagram when the skin cover is closed;

[0045] Figure 25 System diagram of the hearing aid;

[0046] Figure 26 Bluetooth chip diagram in the dual-mode Bluetooth hearing module;

[0047] Figure 27 Hearing chip diagram in the dual-mode Bluetooth hearing module;

[0048] Figure 28 Audio signal conversion circuit diagram in the audio conversion module.

[0049] Reference signs:

[0050] Hearing aid body 100, body shell one 110, ear sound transmission device 111, PCB integrated board 120, central control module 121, charging module 122, audio conversion module 123, dual-mode Bluetooth hearing module 124, APP input module 125, body shell two 130, slot cover plate 131, sliding slot 132, metal block one 133, sound receiver 140, pull wire assembly 150, current collecting ring 151, positive electric ring 152, negative electric ring 153, electrode strip 154, wire roller 155, winding plate 156, threading hole one 157, threading hole two 158, positioning seat 160, constant torque spring 161, wire clamping mechanism 162, bone conduction sound transmission device 200, skin cover 210, sound guide groove 211, spring mounting groove 212, skin cover 213, shielding cover 220, magnetic block two 221, winding 222, winding 223, elastic sheet one 224, elastic sheet two 225, guide ring 226, guide sheet 227, spring 230, hollow skeleton 300.

[0051] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in this specific structure, device and environment, and those skilled in the art can adjust or modify these devices and environment according to specific needs. DETAILED DESCRIPTION

[0052] The application will be described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments below are the best, preferred embodiments, and other alternative embodiments can also be implemented by those skilled in the art for some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the application.

[0053] As shown in the drawings, Figures 1 to 28 The embodiment of the application provides a Bluetooth hearing aid, which comprises a hearing aid body 100 and a hollow frame 300, the hearing aid body 100 is provided with two groups and is connected with two ends of the hollow frame 300, the hearing aid body 100 comprises a main shell one 110, an in-ear sound collecting device 111 is fixedly installed on an inner wall of one end of the main shell one 110, a bone conduction sound collecting device 200 is arranged in an inner part of the other end of the main shell one 110, an end wall of the hollow frame 300 is clamped with a top clamping hole of the main shell one 110, a PCB integrated board 120 is fixedly installed on an inner wall of a middle part of the main shell one 110, and a central control module 121, a charging module 122, an audio conversion module 123, a dual-mode Bluetooth hearing aid module 124 and an APP input module 125 are arranged on the PCB integrated board 120.

[0054] As an embodiment of the present embodiment, as shown in the drawings, Figure 4 , Figure 5 , Figures 7 to 14As shown, the outer end wall of the main shell one 110 is clamped with the main shell two 130, the inner wall of the middle part of the main shell two 130 is provided with a pull wire assembly 150, the pull wire assembly 150 comprises a current collector ring 151, the current collector ring 151 is fixedly connected with the inner wall of the main shell two 130, the current collector ring 151 is provided with a positive ring 152 with positive electricity and a negative ring 153 with negative electricity inside, the top outer wall of the current collector ring 151 is rotatably connected with a wire roller 155, and the middle part of the current collector ring 151 penetrates the wire roller 155, the positive ring 152 and the negative ring 153 are both rotatably installed with an electrode strip 154, and the electrode strip 154 penetrates the wire roller 155 and communicates with the inside thereof, the middle part inner wall of the wire roller 155 is fixedly installed with a winding plate 156, the winding plate 156 is provided with a wire hole one 157 on both sides, the winding plate 156 is wound with a wire through the two wire hole ones 157, and the middle part of the wire is wound on the winding plate 156, the two electrode strips 154 are electrically connected with the wire, the side wall of the wire roller 155 is provided with a wire hole two 158, and both ends of the wire penetrate the wire hole two 158 and are wound on the outer wall of the wire roller 155, the PCB integrated board 120 is electrically connected with the wire, and the wire penetrates the inside of the hollow frame 300, the outer wall of the main shell two 130 is provided with a wire clamping mechanism 162, and the wire clamping mechanism 162 is clamped with the wire, in the application, when the hollow frame 300 is pulled outward, the hollow frame 300 is separated from the two main shell ones 110, and the wire on the wire roller 155 is pulled out, the stress between the constant torque springs 161 in the positioning seat 160 is increased, after the wire is pulled to a suitable length, the wire can be locked by pressing the wire clamping mechanism 162, at this time, the hollow frame 300 can be hung on the neck, and sound transmission is carried out by using the ear sound transmission device 111, when it is needed to wear the bone conduction sound transmission device 200 again or to fix the hearing aid body 100 when moving, the locking force of the wire is released by releasing the wire clamping mechanism 162, under the action of the tension of the constant torque spring 161, the wire roller 155 can wind the lengthened wire, so that the hollow frame 300 cooperates with the hearing aid body 100 again.

[0055] In the embodiment, as shown in the figure, Figure 14 The inner wall of the main shell two 130 is fixedly installed with a positioning seat 160, the inner wall of the positioning seat 160 is installed with a constant torque spring 161, one end of the constant torque spring 161 is fixedly connected with the middle part of the positioning seat 160, and the other end is fixedly connected with the bottom outer wall of the wire roller 155, when the wire roller 155 rotates, the constant torque spring 161 can be pulled, so that the constant torque spring 161 in the positioning seat 160 generates stress, after the force applied to the wire roller 155 is stopped, under the action of the stress of the constant torque spring 161, the wire roller 155 can quickly restore to the original state.

[0056] As an embodiment in the embodiment, as shown in the figure, Figures 15 to 24As shown, the bone conduction sound device 200 comprises a skin cover 210 which is in contact with the skull in the patient's skin to realize solid sound transmission, the skin cover 210 is in sliding connection with the inner wall of the main shell one 110, and can be separated from the skull when the skin cover 210 is located inside the main shell one 110, and vice versa, the skin cover 210 is located outside the main shell one 110 and can be in contact with the skull, a shielding cover 220 is arranged in the skin cover 210, a magnetic block two 221 is fixedly installed on the inner wall of the middle part of the shielding cover 220, a winding 222 is sleeved on the outer wall of the magnetic block two 221, a winding wire 223 is wound on the outer wall of the winding 222, a spring piece one 224 is fixedly installed on the end wall of the winding 222, a spring piece two 225 is fixedly installed on the front end face of the spring piece one 224, and the spring piece two 225 is fixedly connected with the inner wall of the skin cover 210 through a bolt, a guide ring 226 is fixedly installed on the front end of the spring piece two 225, a guide piece 227 is fixedly installed on the front end of the guide ring 226, a sound guide groove 211 is formed in the middle part of the inner wall of the skin cover 210, and the guide piece 227 is tightly fitted with the sound guide groove 211, a spring slot 212 is formed in the peripheral wall of the skin cover 210, and a spring 230 is fixedly installed on the inner wall of the spring slot 212, when the magnetic block two 221 is magnetically separated from the metal block one 133, under the action of the elasticity of the spring 230, the skin cover 210 can be reset to contact the patient again, a groove cover plate 131 is fixedly installed on the inner wall of the main shell two 130, and the other end of the spring 230 is fixedly connected with the side wall of the groove cover plate 131, a sliding groove 132 is formed in the outer wall of the groove cover plate 131, and a metal block one 133 is in sliding connection with the inner wall of the sliding groove 132, the metal block one 133 is magnetically matched with the magnetic block two 221, a sound receiver 140 is fixedly installed on the outer end wall of the main shell two 130, and the sound receiver 140 is electrically connected with the PCB integrated board 120, a leather cover 213 is fixedly installed on the outer wall of the skin cover 210, the leather cover 213 can prevent dust from entering the main shell one 110, and the other end of the leather cover 213 is fixedly connected with the side wall of the main shell one 110, in the application, after the external sound is received by the sound receiver 140, it is processed through the central control module 121, the audio conversion module 123 and the like on the PCB integrated board 120, an electric signal is formed and transmitted to the winding wire 223 of the bone conduction sound device 200, the electric signal is transmitted to the winding 222 through the winding wire 223, the winding 222 is sleeved on the outer wall of the magnetic block two 221 and is in the magnetic field formed by the magnetic block two 221, according to the principle of electromagnetic induction, the energized winding 222 generates vibration under the action of electromagnetic force in the magnetic field, the vibration of the winding 222 is transmitted to the spring piece two 225 through the spring piece one 224 fixedly installed on the end wall of the winding 222, the guide ring 226 at the front end of the spring piece two 225 conducts the vibration to the guide piece 227, the guide piece 227 is tightly fitted with the sound guide groove 211 in the middle part of the skin cover 210, so that the vibration is transmitted to the whole skin cover 210 through the sound guide groove 211, the skin cover 210 is in contact with the patient, and finally the vibration is transmitted to the auditory nerve through the skull to realize bone conduction sound transmission, and the elastic structure of the spring piece one 224 and the spring piece two 225 can buffer the vibration to ensure transmission stability.

[0057] As an embodiment in the present embodiment, as shown in Figure 25 The sound receiver 140 is connected to the central control module 121, and the central control module 121 is connected to the in-ear sound device 111 and the bone conduction sound device 200. In general, the Bluetooth hearing aid is in the hearing aid state, and the Bluetooth is in the sleep mode. At the same time, the sound receiver 140 can transmit the received sound to the central control module 121 for output conversion, so as to convert it into an electrical signal, and then output it through the in-ear sound device 111 and the bone conduction sound device 200.

[0058] As an embodiment in the present embodiment, as shown in Figures 25 to 28 The audio conversion module 123 is connected to the central control module 121, and the central control module 121 is connected to the dual-mode Bluetooth hearing aid module 124. When there is audio or telephone transmission, the Bluetooth hearing aid sends a signal to the central control module 121 through the audio conversion module 123, and then sends the signal to the dual-mode Bluetooth hearing aid module 124 after being processed by the central control module 121, so as to realize wireless Bluetooth transmission. At the same time, the telephone audio can also be amplified by the dual-mode Bluetooth hearing aid module 124 and then output. In particular, the dual-mode Bluetooth hearing aid module 124 is provided with a Bluetooth chip (see the attached Figure 26 ) and a hearing aid chip (see the attached Figure 27 ). The Bluetooth chip is compatible with Android and IOS systems, and can realize audio and BLE transmission at the same time. The hearing aid chip is used for digital transmission. When the dual-mode Bluetooth hearing aid module 124 is connected to the device, the BT_P and BT_N are used to output music to the audio conversion module when there is music transmission, and the MO_EN is low-level output. The in-ear sound device 111 is used to output music. When the dual-mode Bluetooth hearing aid module 124 is connected to the device, the IIS_MCLK, IIS_SCLK, IIS_LRCLK and IIS_DATA are connected to the hearing aid chip, and the audio conversion module 123 collects sound and inputs it to the in-ear sound device 111 through the MIC_BT. After the APP input module 125 controls and adjusts the parameters of the hearing aid, the MO_EN is high-level output. At the same time, the hearing aid chip adopts a professional hearing DSP chip, which has the functions of 16-channel WDRC, noise reduction, sound feedback elimination and frequency band adjustment. The hearing aid chip is used for digital transmission with the Bluetooth chip, and the professional hearing DSP parameters can also be adjusted through Bluetooth. The MIC0 collects sound, and after AD conversion and digital signal adjustment, the ZT_P and ZT_N are used to connect the audio conversion module for output. Figure 28 The audio conversion module 123 is provided with an audio signal conversion circuit (see the attached

[0059] As an embodiment in the present embodiment, as shown inFigure 25 As shown, the dual-mode Bluetooth hearing aid module 124 is connected with the APP input module 125, the APP input module 125 is connected with the in-ear sound receiving device 111 and the bone conduction sound receiving device 200, the APP input module 125 can receive the signal of the mobile phone APP through the dual-mode Bluetooth hearing aid module 124, thereby controlling the hearing aid, adjusting the parameters (program, tone, volume, and self-adaptation) by using the mobile phone APP, and meeting the needs of the patient in different scenes.

[0060] As an embodiment in the embodiment, as shown in the figure, Figure 25 As shown, the central control module 121 is connected with the charging module 122, the hearing aid can be charged through the charging module 122, and the central control module 121 can monitor the operation of the charging module 122.

[0061] The working principle of the technical scheme provided by the application is as follows: under normal circumstances, the Bluetooth hearing aid is in a hearing state, and the Bluetooth is in a sleep mode, because the patient needs to hear the fine sound and needs to wear the hearing aid for a long time, compared with the in-ear sound receiving, the bone conduction sound receiving has greater advantages and is convenient for the patient to wear, at this time, the hearing aid is relied on the bone conduction sound receiving device 200, the external sound is received by the sound receiver 140, processed by the central control module 121, the audio conversion module 123 and the like on the PCB integrated board 120, forms an electric signal and is transmitted to the winding 223 of the bone conduction sound receiving device 200, the electric signal is transmitted to the winding 222 through the winding 223, the winding 222 is sleeved with the outer wall of the magnetic block two 221 and is in the magnetic field formed by the magnetic block two 221, according to the principle of electromagnetic induction, the energized winding 222 is vibrated in the magnetic field by the electromagnetic force, the vibration of the winding 222 is transmitted to the elastic sheet two 225 through the elastic sheet one 224 fixed on the end wall, the guide ring 226 at the front end of the elastic sheet two 225 conducts the vibration to the guide sheet 227, the guide sheet 227 is tightly combined with the sound guide groove 211 in the middle of the skin cover 210, so that the vibration is transmitted to the whole skin cover 210 through the sound guide groove 211, the skin cover 210 is in contact with the patient, and finally the vibration is transmitted to the auditory nerve through the skull, realizing the bone conduction sound receiving, and the elastic structure of the elastic sheet one 224 and the elastic sheet two 225 can buffer the vibration, ensuring the transmission stability.

[0062] When there is audio or telephone transmission, or long wearing hollow skeleton 300 causes the patient to be uncomfortable, the discomfort can be reduced by wearing the ear sound device 111 (by removing the hollow skeleton 300, while being able to receive the voice directionally), at this time by pushing the metal block one 133 upwards, so that the metal block one 133 and the magnetic block two 221 magnetically cooperate, thereby driving the bone conduction sound device 200 to move backward as a whole (auxiliary pressing the skin cover 210), so that the skin cover 210 moves backward in the main shell one 110 (the skin cover 210 is separated from the patient's skin), then pull the hollow skeleton 300 outward, so that the hollow skeleton 300 is separated from the two main shell one 110, at the same time the wire on the wire roller 155 is pulled out, the stress between the constant torque spring 161 in the positioning seat 160 increases, after the wire is pulled to the appropriate length, the wire can be locked by pressing the wire clamping mechanism 162, at this time the hollow skeleton 300 can be hung on the neck, and the sound is transmitted by using the ear sound device 111 (the wire can supply power to the ear sound device 111), when the bone conduction sound device 200 needs to be worn again or fixed when moving, by releasing the locking force of the wire clamping mechanism 162, under the action of the constant torque spring 161, the wire roller 155 can wind the lengthened wire, so that the hollow skeleton 300 and the hearing aid main body 100 cooperate again.

[0063] The present application encompasses any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be fully understood without the description of these details to those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0064] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A Bluetooth hearing aid, comprising a hearing aid body (100) and a hollow skeleton (300), the hearing aid body (100) is provided with two groups, and is connected with the two ends of the hollow skeleton (300) respectively, characterized in that, The hearing aid body (100) includes a main shell (110), an in-ear sound transmission device (111) is fixedly installed on the inner wall of one end of the main shell (110), and a bone conduction sound transmission device (200) is provided inside the other end of the main shell (110). The end wall of the hollow skeleton (300) is snapped into the top hole of the main shell (110). A PCB integrated board (120) is fixedly installed on the inner wall of the middle part of the main shell (110), and a central control module (121), a charging module (122), an audio conversion module (123), a dual-mode Bluetooth hearing aid module (124) and an APP input module (125) are provided on the PCB integrated board (120). The outer end wall of the first main shell (110) is snapped with the second main shell (130), and the outer end wall of the second main shell (130) is fixedly installed with a sound receiver (140). The sound receiver (140) is connected to the output of the central control module (121), and the central control module (121) is connected to the output of the in-ear sound transmission device (111) and the bone conduction sound transmission device (200); The audio conversion module (123) is connected to the output of the central control module (121), the central control module (121) is connected to the output of the dual-mode Bluetooth hearing aid module (124), and the dual-mode Bluetooth hearing aid module (124) is connected to the output of the in-ear sound transmission device (111) and the bone conduction sound transmission device (200). The dual-mode Bluetooth hearing aid module (124) is output connected to the APP input module (125), and the APP input module (125) is output connected to the in-ear sound transmission device (111) and the bone conduction sound transmission device (200); The central control module (121) is connected to the output of the charging module (122); A wire pulling assembly (150) is provided on the inner wall of the middle part of the main body shell (130). The wire pulling assembly (150) includes a current collector ring (151), which is fixedly connected to the inner wall of the main body shell (130). A positively charged ring (152) and a negatively charged ring (153) are provided inside the current collector ring (151). A wire roller (155) is rotatably connected to the top outer wall of the current collector ring (151), and the wire roller (155) passes through the middle of the current collector ring (151). An electrode strip (154) is rotatably installed on both the positively charged ring (152) and the negatively charged ring (153), and the electrode strip (154) passes through the wire roller (155) and communicates with its interior.

2. A Bluetooth hearing aid according to claim 1, characterized in that A winding plate (156) is fixedly installed on the inner wall of the middle part of the wire roller (155). A wire-passing hole (157) is opened on both sides of the winding plate (156). A wire is wound on the winding plate (156) through two sets of wire-passing holes (157), and the middle part of the wire is wound on the winding plate (156). Both sets of electrode strips (154) are electrically connected to the wire. A wire-passing hole (158) is opened on the side wall of the wire roller (155), and both ends of the wire pass through the wire-passing hole (158) and are wound on the outer wall of the wire roller (155). The PCB integrated board (120) is electrically connected to the wire, and the wire passes through the hollow frame (300). A wire-clamping mechanism (162) is installed on the outer wall of the main shell (130), and the wire-clamping mechanism (162) is clamped to the wire.

3. A Bluetooth hearing aid according to claim 1, characterized in that A positioning seat (160) is fixedly installed on the inner wall of the main body shell (130). A constant torque spring (161) is installed on the inner wall of the positioning seat (160). One end of the constant torque spring (161) is fixedly connected to the middle of the positioning seat (160), and the other end is fixedly connected to the bottom outer wall of the roller (155).

4. A Bluetooth hearing aid according to claim 1, characterized in that, The bone conduction sound transmission device (200) includes a skin cover (210), which is slidably connected to the inner wall of the main body shell (110). A shielding cover (220) is provided inside the skin cover (210). A magnetic block two (221) is fixedly installed on the inner wall of the middle part of the shielding cover (220). A winding (222) is sleeved on the outer wall of the magnetic block two (221). A winding wire (223) is wound on the outer wall of the winding (222). A spring piece one (224) is fixedly installed on the end wall of the winding (222). A spring piece two (225) is fixedly installed on the front end face of the spring piece one (224). The spring piece two (225) is fixedly connected to the inner wall of the skin cover (210) by bolts. A guide ring (226) is fixedly installed in the middle of the front end face of the spring piece two (225). A guide plate (227) is fixedly installed at the front end of the guide ring (226).

5. A Bluetooth hearing aid according to claim 4, characterized in that, The inner wall of the skin-contact cover (210) is provided with a sound guide groove (211), and the guide plate (227) is tightly fitted with the sound guide groove (211). The peripheral wall of the skin-contact cover (210) is provided with a spring mounting groove (212), and a spring (230) is fixedly installed on the inner wall of the spring mounting groove (212). The inner wall of the main body shell (130) is fixedly installed with a groove cover plate (131), and the other end of the spring (230) is fixedly connected to the side wall of the groove cover plate (131). The outer wall of the slot cover plate (131) is provided with a sliding groove (132), and a metal block (133) is slidably connected to the inner wall of the sliding groove (132). The metal block (133) is magnetically engaged with the magnetic block (221). The sound receiver (140) is electrically connected to the PCB integrated board (120). A leather cover (213) is fixedly installed on the outer wall of the skin cover (210), and the other end of the leather cover (213) is fixedly connected to the side wall of the main shell (110).

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