Miniature ear canal type hearing aid

Abstract

The present invention discloses a miniature ear canal hearing aid, electronic elements other than a receiver being wrapped inside a housing, a front end of the housing being sealed and fixed at a rear end of the receiver, a sound outlet of the receiver being exposed to an outside of the housing, the receiver being wrapped with an eardrum head thereon, the eardrum head being fixed at the front end of the housing in a detachable manner, and the sound outlet of the receiver being located inside the eardrum head. The structure of the present invention can increase a degree of curvature of a portion going deep into the ear canal, reduce a volume of the hearing aid, and improve adaptability, comfort and concealment.

Claims

1. A miniature ear canal hearing aid, comprising: electronic elements other than a receiver being wrapped inside a housing, a front end of the housing being sealed and fixed at a rear end of the receiver, a sound outlet of the receiver being exposed to an outside of the housing, the receiver being wrapped with an eardrum head thereon, the eardrum head being made of a soft rubber material, the eardrum head being fixed at the front end of the housing in a detachable manner, and the sound outlet of the receiver being located inside the eardrum head.

2. The miniature ear canal hearing aid of claim 1, wherein the front end of the housing forms a mounting opening, and a rear end of the receiver is fixed in the mounting opening through fasten fitting.

3. The miniature ear canal hearing aid of claim 2, wherein a sealant is further disposed between the rear end of the receiver and the mounting opening of the housing; or, barbs are formed on an inner wall of the mounting opening of the housing, and the rear end of the receiver is tightly fixed in the mounting opening by squeezing the barbs.

4. The miniature ear canal hearing aid of claim 1, wherein the hearing aid is designed to be in a bending form corresponding to a curvature of a turn of a human ear canal, fixing positions of the front end of the housing and the rear end of the receiver are located at a bending portion of the hearing aid.

5. The miniature ear canal hearing aid of claim 1, wherein the front end of the housing forms a flange and a groove, the eardrum head expands outwardly corresponding to the flange, is provided with a snap ring corresponding to the groove, and is fixed at the front end of the housing with the help of the snap ring being clamped in the groove.

6. The miniature ear canal hearing aid of claim 5, wherein the snap ring and a main body of the eardrum head are separately manufactured and then combined together, or the snap ring and the main body of the eardrum head both are molded using a soft rubber.

7. The miniature ear canal hearing aid of claim 1, wherein the eardrum head is opened and provided with sound outlet holes, and a filter net is mounted on the sound outlet holes.

8. The miniature ear canal hearing aid of claim 1, wherein the electronic elements other than the receiver are a chip, a microphone and a battery box, a battery in the battery box supplies power to the receiver, the chip and the microphone, external sound is received by the microphone, processed by the chip, then transmitted to the receiver and played by the receiver, a position of the housing corresponding to the microphone is provided with a sound pick-up hole, a position of the housing corresponding to the battery box is provided with a charging hole, a switch key is mounted on the housing, and the rear end of the housing is mounted with a pulling wire.

9. The miniature ear canal hearing aid of claim 1, wherein the housing is divided into two portions of an upper housing and a lower housing, the upper housing is divided into a left half housing and a right half housing, a bottom of the right half housing and a top of the lower housing are sealed and joined together, and the battery box is mounted in the left half housing, and the right half housing and the left half housing are sealed and joined together in a detachable manner.

10. The miniature ear canal hearing aid of claim 9, wherein vertical limit fitting groove and clamping strip and left-right limit fitting hook and buckle are formed between the left half housing and the right half housing, and the left half housing and the right half housing are joined together with the help of the vertical limit fitting of the groove and the clamping strip, and the left-right limit fitting of the hook and the buckle.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a perspective bottom view of the present invention;

(2) FIG. 2 is a perspective top view of the present invention;

(3) FIG. 3 is a front view of the present invention;

(4) FIG. 4 is a right view of the present invention;

(5) FIG. 5 is a left view of the present invention;

(6) FIG. 6 is a top view of the present invention;

(7) FIG. 7 is a perspective exploded diagram of the present invention;

(8) FIG. 8 is a perspective exploded diagram of a receiver, a lower housing and an eardrum head;

(9) FIG. 9 is a combined cross-section view of the present invention; and

(10) FIG. 10 is a locally enlarged view of the present invention.

EXPLANATION FOR REFERENCE NUMERALS

(11) housing 1, sound pick-up hole 11, pulling wire 12, upper housing 13, left half housing 131, right half housing 132, groove 133, clamping strip 134, hook 135, buckle 136, lower housing 14, mounting opening 15, barb 16, groove 17, flange 171, charging hole 18, switch key 19; eardrum head 2, snap ring 21, fin 22, sound outlet hole 23, filter net 24; receiver 3, sound outlet 31; chip 4; microphone 5; and battery box 6.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

(12) As shown in FIG. 1 to FIG. 10, in a miniature ear canal hearing aid disclosed by the present invention, electronic elements other than the receiver 3 are wrapped inside the housing 1, a front end of the housing 1 is sealed and fixed at a rear end of the receiver 3, the sound outlet 31 of the receiver 3 is exposed to an outside of the housing 1, the receiver 3 is wrapped with the eardrum head 2 thereon, the eardrum head 2 can be fixed at the front end of the housing 1 in a detachable manner, and the sound outlet 31 of the receiver 3 is located inside the eardrum head 2. According to the present invention, the housing 1 can use a hard plastic material, and the eardrum head 2 can use a soft rubber material, thereby forming a miniature ear canal hearing aid with a combination of soft and hard housings.

(13) A key point of the present invention is that most portion of the receiver 3 is exposed to the outside of the housing 1, other electronic components (such as the chip 4, the microphone 5 and the like) are still protected inside the hard plastic housing 1, most portion of the housing 1 is used for assembling the other electronic elements and only a very small portion is used for fixing the receiver 3, thus, lengths of both ends of the housing 1 at the bending portion change greatly compared with the traditional technology, one end of the housing 1 at the bending portion only needs to fix the receiver 3, a portion of the housing 1 for fixing the receiver 3 is greatly shortened, the mold of the housing 1 easily processes, and the mold can easily realize a requirement for large-angle bending at a portion for fixing the receiver 3 to thereby implement the large-angle bending of the hearing aid, so as to make the hearing aid conform more to the structure of the human ear canal, which can improve a proportion of the people to whom it adapts and the wearing comfort. In addition, according to the present invention, the soft rubber eardrum head 2 is directly used to wrap the receiver 3 for protection, the area covered by the hard plastic housing 1 is greatly reduced (the volume of the hard plastic housing 1 is reduced) such that the volume of the portion going deep into the ear canal (the volume of the front end of the hearing aid) is significantly reduced, the outer surface of the portion going deep into the ear canal except the inside receiver 3 is basically the soft rubber eardrum head 2, and the hearing aid can easily go deep into the ear canal. This improves the proportion of the people to whom it adapts, enhances the wearing comfort, and has good concealment. Moreover, according to the present invention, the microphone 5 and other electronic elements are wrapped inside the housing 1, and the most portion of the receiver 3 is exposed to the outside of the housing 1 such that the microphone 5 and the receiver 3 (the sound outlet 31) are respectively disposed at the inside and the outside of the housing 1, the connection sealability of the receiver 3 and the housing 1 are good to thereby reduce the risks of the sound leakage and the solid conduction inside the housing 1, the microphone 5 and the receiver 3 do not generate the sound feedback howling due to the inside sound leakage and conduction, and the sound of the receiver 3 is transmitted out via the soft rubber eardrum head 2, which can further avoid the howling due to the vibration of large magnitude generated while being transmitted via the traditional hard plastic housing 1 to thereby improve the production yield and the wearing comfort of the user. In addition, according to the present invention, the eardrum head 2 is used to wrap the receiver 3 in a detachable manner to perform a function of protection, and the user can easily detach the eardrum head 2 according to the needs such that the receiver 3 can be exposed in the air again, so that it is convenient to use alcohol and other disinfectants and tools to clean the cerumen and oily residuals accumulated at the sound outlet 31 position of the receiver 3. This is conductive for the user to use the hearing aid normally, the use is more hygienic, and the after-sales pressure and expenditure are reduced.

(14) According to the present invention, the sealing and fixing structure of the housing 1 and the receiver 3 can be as illustrated in the figures, but is not limited to the structure illustrated in the figures. The front end of the housing 1 forms the mounting opening 15, and the rear end of the receiver 3 is fixed in the mounting opening 15 through fasten fitting. In order to make the fastening more firmly to avoid loose, a sealant can be further disposed between the rear end of the receiver 3 and the mounting opening 15 of the housing 1. Or, barbs 16 are further formed on an inner wall of the mounting opening 15 of the housing 1, and the rear end of the receiver 3 is tightly fixed in the mounting opening 15 by squeezing the barbs 16 to make the barbs 16 deform.

(15) In order to further facilitate the processing and molding of the housing 1, the optimized design of the present invention is: the hearing aid is designed to be in a bending form corresponding to a curvature of the turn of a human ear canal, and the fixing positions of the front end of the housing 1 and the rear end of the receiver 3 are directly located at the bending portion of the hearing aid, so that a bending segment of the housing 1 can be smaller, thus, it is more convenient for processing.

(16) According to the present invention, the detachable fixing structure of the eardrum head 2 and the housing 1 can be illustrated in the figures, but is not limited to the structure illustrated in the figures, the front end of the housing 1 forms the flange 171 and the groove 17, the eardrum head 2 expands outwardly corresponding to the flange 171 and is provided with the snap ring 21 corresponding to the groove 17, and the eardrum 2 is fixed at the front end of the housing 1 with the help of the snap ring 21 being clamped in the groove 17. The snap ring 21 and the main body of the eardrum head 2 can be separately manufactured and then combined together, a material of the snap ring 21 can be different from that of the main body of the eardrum head 2, for example, the main body of the eardrum head 2 is manufactured using silicone to ensure the wearing comfort, and the snap ring 21 is preferably manufactured using a hard plastic material, also, the snap ring 21 and the main body of the eardrum head can be directly molded together using the soft rubber to have a certain elasticity for convenient assembling and fixing.

(17) The fins 22 inclined outwardly from the front to the back are formed around the eardrum head 2 of the present invention to make it more firm after being worn. The eardrum head 2 is opened and provided with sound outlet holes 23, and the filter net 24 is mounted on the sound outlet holes 23. As illustrated in the figures, the sound outlet 31 of the receiver 3 are close to the filter net 24, and the filter net 24 can reduce the pollution of the cerumen and oily residuals.

(18) In addition, according to the present invention, the electronic elements other than the receiver 3 are the chip 4, the microphone 5 and the battery box 6, a battery in the battery box 6 supplies power to the receiver 3, the chip 4 and the microphone 5. External sound is received by the microphone 5, processed by the chip 4, then transmitted to the receiver 3 and played by the receiver 3. The position of the housing 1 corresponding to the microphone 5 is provided with the sound pick-up hole 11, and the external sound enters the housing 1 from the sound pick-up hole 11. The rear end of the housing 1 is further mounted with the pulling wire 12, and the user can conveniently take the hearing aid out from the ear canal by pulling the pulling wire 12. The housing 1 is further provided with the charging hole 18 for charging the battery, and the housing 1 is further provided with the switch key 19 connected with the chip 4 and the battery to control On and Off of the hearing aid and the switching of working modes.

(19) In order to facilitate the processing and manufacturing and operations of assembling and replacing the battery and the like, the optimized structure of the present invention is as illustrated in the figures, but is not limited to the structure illustrated in the figures. The housing 1 is divided into two portions of the upper housing 13 and the lower housing 14, the upper housing 13 is divided into the left half housing 131 and the right half housing 132, a bottom of the right half housing 132 and a top of the lower housing 14 are sealed and joined together, the battery box 6 is mounted in the left half housing 131, and the right half housing 132 and the left half housing 131 are sealed and joined together in a detachable manner so as to facilitate replacement of the battery box 6 and the maintenance of the inside of the hearing aid etc. As for the detachable combination manner of the left half housing 131 and the right half housing 132, it can be as illustrated in the figures but is not limited to the structure illustrated in the figures. The vertical limit fitting groove 133 and clamping strip 134 and the left-right limit fitting hook 135 and buckle 136 are formed between the left half housing 131 and the right half housing 132, thus, the left half housing 131 and the right half housing 132 are buckled together in a vertical direction with the help of the vertical limit fitting of the groove 133 and the clamping strip 134, and the left half housing 131 and the right half housing 132 are buckled and positioned with the help of the left-right limit fitting of the hook 135 and the buckle 136. Thus, the left half housing 131 and the right half housing 132 are firmly joined together.

(20) The above-described are merely the specific embodiments of the present invention, but not used to limit the scope for protection of the present invention. All the equivalent changes made according to the design ideas of the present application fall within the scope for protection of the present application.