RIC hearing aid

Abstract

The invention relates to an RIC hearing aid, which comprises a main body part, an in-ear part and a cable, the first end of the cable is fixedly connected with the in-ear part, the second end of the cable is fixedly provided with a first connecting terminal, the main body part is provided with a second connecting terminal, the first connecting terminal comprises a first clamping part, and the second connecting terminal comprises a second clamping part. A plurality of first contacts are arranged on the first clamping part, a plurality of second contacts matched with the first contacts are arranged on the second clamping part, the first clamping part and the second clamping part are detachably clamped, matched and fixed, and the first contacts and the second contacts are in butt joint pairwise to form electric contact. A contact butt joint type electric contact structure is adopted to replace a PIN pin plug-in type electric contact structure in the prior art, space occupation is greatly reduced, more contacts can be arranged in a unit area, and a plurality of electric signal channels are formed. The more the electrical signal channels are, the stronger the expansibility of the RIC hearing aid is, and more functional modules can be integrated in the RIC hearing aid.

Description

Technical Field

[0001] The present invention relates to a hearing aid manufacturing technology, and in particular to a RIC hearing aid. Background Art

[0002] RIC hearing aids, or receiver in the canal hearing aids, include a main body, an in-ear part, and a cable. The design feature of this hearing aid is that the receiver is placed in the in-ear part, while the main body is located outside the ear, and the in-ear part and the main body are connected by a cable. This design makes the hearing aid more compact and concealed. When wearing it, you can hardly see the existence of the hearing aid. You can only see a thin wire outside the ear, which provides extremely high concealment.

[0003] The in-ear part and the cable need to be electrically connected to the main body. Moreover, since the human ear canal secretes earwax and grease, which may damage the in-ear part, the in-ear part and the cable are required to be removable and replaceable from the main body as a whole. Therefore, in the prior art, the cable is detachably electrically connected to the main body using a pluggable PIN pin. However, the PIN pin occupies a large volume. Under the requirement of miniaturization of the hearing aid, usually only 4 PIN pin channels can be provided. This limits the hearing aid from adding more functions such as in-ear detection function, health detection function, etc. Summary of the invention

[0004] In view of the above problems, the present invention proposes a RIC hearing aid with a more optimized structure.

[0005] The present invention is implemented by the following technical solutions:

[0006] The present invention proposes a RIC hearing aid, including a main body, an in-ear part and a cable, wherein the first end of the cable is fixedly connected to the in-ear part, the second end of the cable is fixedly provided with a first connecting terminal, the main body is provided with a second connecting terminal, the first connecting terminal includes a first clamping part, the second connecting terminal includes a second clamping part, the first clamping part is provided with a plurality of first contacts, the second clamping part is provided with a plurality of second contacts matching the first contacts, the first clamping part and the second clamping part are detachably clamped and fixed so that the first contacts and the second contacts are docked in pairs to form electrical contact.

[0007] Among them, preferably, the first clamping part is an annular clamping protrusion, the second clamping part is an annular clamping groove, the annular clamping protrusion is clamped in the annular clamping groove, the first contact point is arranged on the peripheral wall of the annular clamping protrusion, and the second contact point is arranged on the peripheral wall of the annular clamping groove.

[0008] Preferably, the first contact point is arranged on the outer peripheral wall of the annular clamping protrusion, and the second contact point is arranged on the inner peripheral wall of the annular clamping groove.

[0009] Among them, preferably, there are six first contacts in total, and the first contacts arranged at three intervals form a group, and the two groups of first contacts are respectively arranged on two opposite outer circumferential walls of the annular bulge; there are six second contacts in total, and the second contacts arranged at three intervals form a group, and the two groups of second contacts are respectively arranged on two opposite inner circumferential walls of the annular groove.

[0010] Preferably, a rotation positioning groove is further provided on the second connecting terminal, and a supporting protrusion is provided on the first connecting terminal corresponding to the rotation positioning groove, and the supporting protrusion is inserted into and abuts against the rotation positioning groove to form a fulcrum for the first connecting terminal to be rotatably crimped to the second connecting terminal.

[0011] Among them, preferably, a fixed slot is also provided on the second connecting terminal, the rotation positioning slot and the fixed slot are respectively arranged on the left and right sides of the second clamping part, and a fixed hook is provided on the first connecting terminal, the support protrusion and the fixed hook are respectively arranged on the left and right sides of the first clamping part, and the first connecting terminal is rotated and crimped to the second connecting terminal so that the fixed hook is clamped in the fixed slot.

[0012] Among them, preferably, the fixed slot includes a hook portion, and the fixed hook has a pre-positioning position in which the outer end abuts against the hook portion and a hook position in which the outer end passes over the hook portion, and in the pre-positioning position, the angle formed by the plane where the first contacts are located and the plane where the second contacts are located is between 11±5°.

[0013] Wherein, preferably, the fixed slot includes a hook portion, and the outer end of the fixed hook can pass over the hook portion so that the fixed hook is hook-fitted and fixed to the hook portion, wherein the hook portion is configured to be displaceable, and the hook portion is displaced to release the hook-fit between the hook portion and the fixed hook.

[0014] Among them, preferably, the hook part is a pin that can be slidably matched with the main body part, a through sliding groove is provided on the main body, the hook part slides in the sliding groove, and the sliding groove is provided with two limit ends to prevent the hook part from sliding out.

[0015] Among them, preferably, the in-ear part includes a shell made of light-transmitting material and a light-sensing detection chip and a health monitoring module installed in the shell. The light-sensing detection chip determines whether the in-ear part is worn in the ear through light detection, and the health monitoring module is used to monitor the health information of the human body.

[0016] The present invention has the following beneficial effects: the present invention adopts a contact docking type electrical contact structure to replace the PIN pin plug-in type electrical contact structure in the prior art, which greatly reduces the space occupied, and more contacts can be arranged in a unit area to form multiple electrical signal channels. More electrical signal channels mean that the RIC hearing aid has stronger expandability, which is conducive to integrating more functional modules in the RIC hearing aid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a RIC hearing aid in an embodiment;

[0018] Figure 2 is a structural exploded view of the RIC hearing aid in the embodiment;

[0019] Figure 3 is a schematic diagram of an in-ear portion and a cable in an embodiment;

[0020] Figure 4 is a schematic diagram of the main body in the embodiment;

[0021] Figure 5 is a cross-sectional view of the RIC hearing aid in the embodiment (the first connecting terminal is in an intermediate state of installation);

[0022] Figure 6 is a cross-sectional view of the RIC hearing aid in the embodiment (the first connecting terminal and the second connecting terminal are installed);

[0023] Figure 7 is a front view of the main body of the embodiment;

[0024] Figure 8 yes Figure 7 Sectional view at AA in the middle;

[0025] Fig. 9 is a schematic diagram of the structure disassembly of the ear-entry part in the embodiment;

[0026] Fig.10 is an electrical schematic diagram of the RIC hearing aid in the embodiment. DETAILED DESCRIPTION

[0027] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0029] See also Figure 1 , Figure 2As shown, as a preferred embodiment of the present invention, there is provided a RIC hearing aid, comprising a main body 1, an in-ear part 2 and a soft cable 3. The receiver of the RIC hearing aid is arranged in the in-ear part 2, and the main body 1 is provided with a controller, a communication module and other structures. When worn, the in-ear part 2 is inserted into the ear canal of a person, and the main body 1 is hung on the ear of a person. The in-ear part 2 is connected to the main body 1 through the cable 3, wherein the first end of the cable 3 is fixedly electrically connected to the in-ear part 2, the second end of the cable 3 is fixedly provided with a first connection terminal 4, and the main body 1 is provided with a second connection terminal 5, and the first connection terminal 4 and the second connection terminal 5 are connected in cooperation to realize the fixed electrical connection between the cable 3 and the main body 1, refer to Figure 3 and Figure 4 The first connecting terminal 4 includes a first clamping portion 41, and the second connecting terminal 5 includes a second clamping portion 51. The first clamping portion is provided with a plurality of first contacts 40, and the second clamping portion 51 is provided with a plurality of second contacts 50 matching the first contacts 40. The first clamping portion 41 and the second clamping portion 51 are detachably clamped and fixed so that the first contacts 40 and the second contacts 50 are connected in pairs to form electrical contact, that is, each first contact 40 is connected to a second contact 5 to realize the connection of an electrical signal channel.

[0030] This embodiment adopts a contact docking type electrical contact structure to replace the PIN pin plug-in type electrical contact structure in the prior art, which greatly reduces the space occupied and can arrange more contacts in a unit area to form multiple electrical signal channels. More electrical signal channels mean that the RIC hearing aid has stronger scalability, which is conducive to integrating more functional modules in the RIC hearing aid, for example, Fig. 9 In this embodiment, the ear-in-ear part 2 includes a shell 21 made of a light-transmitting material, a light-sensing detection chip 23 and a health monitoring module 22 installed in the shell. The light emitted by the light-sensing detection chip 23 passes through the shell 21 and the skin, and the intensity of the reflected light after the light penetrates the blood is detected, so that the blood oxygen saturation can be calculated. At the same time, the light of the light-sensing detection chip 23 passes through the shell 21 and the skin. After the earphone is inserted into the ear, the reflected light signal received by the sensor is weakened. By analyzing the changes in the intensity of the received light signal, the sensor can determine whether the hearing aid RIC component has been correctly worn. The hearing aid will not be started until the user has finished wearing the hearing aid, thereby eliminating the possibility of howling. The health monitoring module 22 is used to monitor human health information such as blood flow. The blood vessels in the ear canal are dense and relatively stable, and can provide more accurate information such as blood flow, which helps to improve the measurement accuracy of heart rate and blood oxygen saturation. At the same time, a receiver (not shown in the figure) is also provided in the shell 21.

[0031] The first clamping part 41 and the second clamping part 51 can be implemented by any clamping structure. In this embodiment, the first clamping part 41 is an annular clamping protrusion, and the second clamping part 51 is an annular clamping groove. The annular clamping protrusion is clamped and matched in the annular clamping groove. The first contact 40 is arranged on the peripheral wall of the annular clamping protrusion, and the second contact 50 is arranged on the peripheral wall of the annular clamping groove. The clamping of the annular clamping protrusion and the annular clamping groove is not only conducive to positioning during docking, but also makes the clamping more stable. In other embodiments, the first contact 40 may not be arranged on the peripheral wall of the annular clamping protrusion, and the second contact 50 may not be arranged on the peripheral wall of the annular clamping groove. In this case, the annular clamping protrusion and the annular clamping groove only realize docking and fixing, and the first contact 40 and the second contact 50 are docked outside the annular clamping protrusion and the annular clamping groove. However, the structure of this embodiment allows the first contact 40 and the second contact 50 to be used as part of the clamping structure, so that the docking of the first contact 40 and the second contact 50 is more stable and reliable. In other embodiments, the first clamping portion 41 may be configured as a clamping groove, and the second clamping portion 51 may be configured as a clamping protrusion.

[0032] In this embodiment, the first contact 40 is arranged on the outer peripheral wall of the annular clamping protrusion, and the second contact 50 is arranged on the inner peripheral wall of the annular clamping groove. This arrangement allows a plurality of first contacts 40 and a plurality of second contacts 50 to each have a larger arrangement space, avoiding the problem of short circuit caused by too close arrangement of contacts. In this embodiment, there are six first contacts 40, and the first contacts 40 arranged at three intervals form a group, and the two groups of first contacts 40 are respectively arranged on two opposite outer peripheral walls of the annular clamping protrusion; there are six second contacts 50, and the second contacts 50 arranged at three intervals form a group, and the two groups of second contacts 50 are respectively arranged on two opposite inner peripheral walls of the annular clamping groove. This arrangement can ensure a reasonable spacing between the contacts. Of course, in other embodiments, the number of contacts can be adaptively changed.

[0033] The first clamping portion 41 and the second clamping portion 51 are actually sufficient to fix the first connecting terminal 4 and the second connecting terminal 5. However, in order to further improve the stability of the connection between the first connecting terminal 4 and the second connecting terminal 5 and the ease of operation when the two are assembled, as shown in FIG. Figure 3-Figure 6In this embodiment, a rotation positioning groove 53 is further provided on the second connection terminal 5, and a support protrusion 42 is provided on the first connection terminal 4 corresponding to the rotation positioning groove 53. When the first connection terminal 4 and the second connection terminal are connected, the support protrusion 42 is inserted into and abuts against the rotation positioning groove 53 to form a fulcrum, and the first connection terminal 4 is rotated and pressed on the second connection terminal 5 by relying on the fulcrum. A fixed card groove 54 is also provided on the second connection terminal 5, and the rotation positioning groove 53 and the fixed card groove 54 are respectively arranged on the left and right sides of the second clamping part 51, and a fixed hook 43 is provided on the first connection terminal 4, and the support protrusion 42 and the fixed card hook 43 are respectively arranged on the left and right sides of the first clamping part 41, and the first connection terminal 4 is rotated and pressed on the second connection terminal 5 so that the fixed card hook 43 is clamped in the fixed card groove 54. By setting the rotation positioning groove 53 and the support protrusion 42, the first connection terminal 4 and the second connection terminal 5 in this embodiment are rotationally crimped rather than directly plugged, which is more convenient for the pre-positioning of the first connection terminal 4 and the second connection terminal 5, and this crimping structure is more conducive to the alignment between the contacts. At the same time, in the process of rotation crimping, some contacts are first docked and then all contacts are docked, which can avoid the short circuit problem caused by inaccurate contact alignment to a certain extent. The rotation positioning groove 53 and the fixed card groove 54 are respectively arranged on the left and right sides of the second clamping part 51, and the support protrusion 42 and the fixed hook 43 are respectively arranged on the left and right sides of the first clamping part 41, so that an additional clamping and fixing structure is added to the outside of the first clamping part 41 and the second clamping part 51, so that the connection between the first connection terminal 4 and the second connection terminal 5 is more stable.

[0034] The fixing slot 54 includes a hook portion 55. The outer end of the fixing hook 43 is an arc surface. Figure 5 and Figure 6 During the rotation and crimping process of the first connection terminal 4, the outer end of the fixing hook 43 will first abut against the hook portion 55. Under the action of external force, the outer end of the fixing hook 43 passes over the hook portion 55 to achieve the hook-fitting fixation of the fixing hook 43 and the fixing slot 54. Therefore, the fixing hook 43 has a pre-positioned position (corresponding to the outer end abutting against the hook portion 55) Figure 5 ) and the hook position where the outer end passes over the hook portion 55 (corresponding to Figure 6 ), in the pre-positioned position, the angle P formed by the plane where the first contacts 40 are located and the plane where the second contacts 50 are located is between 11±5°. This design can improve the durability of the first connecting terminal 4.

[0035] In order to realize the detachability of the first connecting terminal 4, as Figure 8In this embodiment, the hooking portion 55 is a latch that can be slidably matched with the main body 1. A through slide groove 56 is provided on the main body. The hooking portion 55 is slidably matched in the slide groove 56. By pushing the hooking portion 55 to slide in the slide groove 56, the hooking portion 55 and the fixed hook 43 can be released. The slide groove 56 is implemented as a stepped groove, including a first limiting end 561 and a second limiting end 562. A partially raised stepped portion 551 is provided on the hooking portion 55. The first limiting end 561 and the second limiting end 562 limit the stepped portion 551 to prevent the hooking portion 55 from sliding out.

[0036] In order to improve the sealing performance of the first connection terminal 4 and the second connection terminal 5, a sealing structure such as a sealing gasket, a sealing ring, a labyrinth sealing structure, etc. may be provided on the joint surface of the two. Since the first clamping portion 41 and the second clamping portion 51 are rotationally aligned and crimped in this embodiment, the butt ends of the first clamping portion 41 and the second clamping portion 51 are both provided with rounded corners to form a better crimping guiding effect. Fig.10 The electrical schematic diagram of the RIC hearing aid is shown for further reference.

[0037] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims will fall within the scope of protection of the present invention.

Claims

1. A RIC hearing aid, comprising a main body, an in-ear part and a cable, wherein a first end of the cable is fixedly connected to the in-ear part, and characterized in that: A first connecting terminal is fixedly provided at the second end of the cable, and a second connecting terminal is provided on the main body. The first connecting terminal includes a first clamping portion, and the second connecting terminal includes a second clamping portion. The first clamping portion is provided with a plurality of first contacts, and the second clamping portion is provided with a plurality of second contacts matching the first contacts. The first clamping portion and the second clamping portion are detachably clamped and fixed so that the first contacts and the second contacts are docked in pairs to form electrical contact.

2. The RIC hearing aid according to claim 1, characterized in that: The first clamping part is an annular clamping protrusion, and the second clamping part is an annular clamping groove. The annular clamping protrusion is clamped and fitted in the annular clamping groove. The first contact point is arranged on the peripheral wall of the annular clamping protrusion, and the second contact point is arranged on the peripheral wall of the annular clamping groove.

3. The RIC hearing aid according to claim 2, characterized in that: The first contact point is arranged on the outer peripheral wall of the annular clamping protrusion, and the second contact point is arranged on the inner peripheral wall of the annular clamping groove.

4. The RIC hearing aid according to claim 2, characterized in that: There are six first contacts in total, three first contacts arranged at intervals form a group, and two groups of first contacts are respectively arranged on two opposite outer peripheral walls of the annular convex protrusion; There are six second contacts in total, and three second contacts arranged at intervals form a group. Two groups of second contacts are respectively arranged on two opposite inner peripheral walls of the annular groove.

5. The RIC hearing aid according to claim 1, characterized in that: The second connection terminal is also provided with a rotation positioning groove, and a supporting protrusion is provided on the first connection terminal corresponding to the rotation positioning groove. The supporting protrusion is inserted into and abuts against the rotation positioning groove to form a fulcrum for the first connection terminal to be rotatably pressed against the second connection terminal.

6. The RIC hearing aid according to claim 5, characterized in that: The second connecting terminal is also provided with a fixed slot, and the rotation positioning slot and the fixed slot are respectively arranged on the left and right sides of the second clamping part; a fixed hook is provided on the first connecting terminal, and the support protrusion and the fixed hook are respectively arranged on the left and right sides of the first clamping part; the first connecting terminal is rotated and crimped to the second connecting terminal so that the fixed hook is clamped to the fixed slot.

7. The RIC hearing aid according to claim 6, characterized in that: The fixed card slot includes a hook portion, and the fixed card hook has a pre-positioning position in which the outer end abuts against the hook portion and a hook position in which the outer end passes over the hook portion. In the pre-positioning position, the angle formed by the plane where the first contacts are located and the plane where the second contacts are located is between 11±5°.

8. The RIC hearing aid according to claim 6, characterized in that: The fixed card slot includes a hook portion, and the outer end of the fixed hook can pass over the hook portion so that the fixed hook is hook-fitted and fixed to the hook portion, wherein the hook portion is configured to be displaceable, and the hook-fit between the hook portion and the fixed hook is released by displacement of the hook portion.

9. The RIC hearing aid according to claim 8, characterized in that: The hook part is a latch that can be slidably matched with the main body. A through slide groove is provided on the main body. The hook part is slidably matched in the slide groove. The slide groove is provided with two limit ends to prevent the hook part from sliding out.

10. The RIC hearing aid according to claim 1, characterized in that: The in-ear part includes a shell made of light-transmitting material and a light-sensing detection chip and a health monitoring module installed in the shell. The light-sensing detection chip determines whether the in-ear part is worn in the ear through light detection, and the health monitoring module is used to monitor the health information of the human body.

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