JPH0328636Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a battery housing chamber for housing a battery in a hearing aid, particularly a battery housing chamber for a hearing aid using an air battery.

Conventionally, hearing aids have a battery storage chamber inside the main body, and a battery holder for attaching and removing the battery is pivotally supported in the main body so that it can be opened and closed. The inner wall and the battery were in contact, and the gap between the main body and the battery holder was extremely small. However, in recent years, air batteries have been developed that take air into the battery to cause a chemical reaction and function as a battery, so in the conventional battery chamber, the inner wall of the main body and the battery surface are in contact, making it difficult for air to circulate. Unfortunately, it was inconvenient for using air batteries. Furthermore, in behind-the-ear hearing aids that are worn directly on the auricle, moisture such as sweat can block the air holes provided in the air battery for air intake due to capillary action, rendering the air battery inoperable. There was a problem.

The present invention solves the above problem by providing a convex part or a concave part on the inner wall of the main body to form a space between the air battery and the air battery. By preventing air holes in the battery from being blocked, and by forming the protrusions accompanying the formation of the protrusions or recesses in the longitudinal direction of the hearing aid body, that is, by providing them so as to be approximately perpendicular to the ground when the hearing aid is worn, sweat can be removed. To provide a battery accommodating chamber for a hearing aid that prevents moisture from accumulating in a convex part and allows the moisture to fall quickly.

Furthermore, an opening communicating with the battery housing chamber is formed on the bottom of the hearing aid main body to further ensure air circulation and facilitate the discharge of sweat and the like that have entered the battery housing chamber to the outside world.

A first embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a behind-the-ear hearing aid, and the hearing aid main body 2 has a rectangular cross-section. That is, the hearing aid main body 2 is formed by combining a right case 3 and a left case 4 shown in FIGS. 2 to 4. 10 is an ear hook part, and the ear plug 12 is connected to the ear hook part 10 via a sound guide tube 11. The right case 3 is made of synthetic resin, and has two rectangular protrusions 3a extending parallel to the longitudinal direction of the hearing aid body, that is, in a direction substantially perpendicular to the ground when the hearing aid is worn on the pinna, as shown in FIG. The left case 4 is made of synthetic resin, and has two rectangular holes parallel to the longitudinal direction of the hearing aid body, that is, in a direction substantially perpendicular to the ground when the hearing aid is worn on the pinna. A convex portion 4a of an appropriate size is provided corresponding to the convex portion 3a to form a space portion 4b, and a battery holder 5 for attaching and detaching a battery forming a battery storage chamber 7 is opened and closed with a shaft 6 at the tip thereof. It is freely pivoted. Therefore, the air battery 8 described below is accommodated on the curved portion of the battery holder 5. 8 is a cylindrical air cell shown in FIG. 6, and an air hole 8a for air intake is bored in the center of the bottom surface. Reference numeral 9 denotes a battery contact piece made of metal, which electrically connects an electronic circuit section (not shown) disposed inside the main body and both poles of an air battery 8 serving as a power source.

In the above configuration, when the ear-hook hearing aid containing the air battery 8 is used by being worn in the ear, the air holes 3b and 4b are formed between the air battery 8 and the inner wall of the main body. Air is supplied to the inside of the air battery 8 from 8a, causing a chemical reaction to occur and providing a power source for the behind-the-ear hearing aid. Furthermore, since behind-the-ear hearing aids are worn on the pinna of the ear, moisture such as sweat can easily enter the inside of the behind-the-ear hearing aid. It won't be blocked. In addition, since the convex part is formed parallel to the longitudinal direction of the hearing aid body, the convex part does not prevent sweat from falling when the hearing aid is worn, meaning that moisture such as sweat does not stay in the convex part. , which is convenient because it falls quickly and therefore does not block the air holes of the battery.

In this embodiment, the convex portions of the right case and the left case may be concave portions, or a plurality of convex portions or concave portions may be provided at appropriate positions as long as they do not block the air holes. Effects can be obtained. Further, as shown in FIG. 5, a groove-shaped opening 3c is formed on the bottom of the right case, and a groove-shaped opening 4c is formed on the bottom of the left case.
By providing one or both of them, air circulation is further improved, and moisture such as sweat that has entered the inside of the main body can easily exit through the openings 3c and 4c.

Next, a second embodiment will be explained with reference to FIGS. 7 and 8. Reference numeral 21 denotes a right case of a behind-the-ear hearing aid made of synthetic resin, and two rectangular convex portions 21a of an appropriate size are provided in parallel in the longitudinal direction to form a space 2.
1b. A left case 22 made of synthetic resin corresponds to the right case 21, and is combined with the right case 21 to form the main body of the behind-the-ear hearing aid, with a battery storage chamber 26 formed at the tip. Reference numeral 23 denotes a battery holder made of synthetic resin for attaching and detaching the air battery 8 to the main body.One end of the battery holder is pivoted to the main body so as to be openable and closable.When the air battery 8 is stored in the battery storage chamber 26, the main body and the battery holder are The outer periphery of 23 has a matching shape. Reference numeral 25 is a printed wiring board that supports the air battery 8, and has a hole 25a bored at a position corresponding to the air hole 8a of the air battery 8, forming a space 22a between it and the left case 22. Reference numeral 24 is a metal battery contact piece that electrically connects an electronic circuit section (not shown) disposed inside the main body to both poles of an air battery 8 serving as a power source. In this case, one of the battery contacts 24 is in contact with one pole of the air battery 8 through 25a.

In the above configuration, the air battery 8 is attached to the behind-the-ear hearing aid.
When the air battery 8 is accommodated and used by being worn on the auricle, since spaces 21b and 22a are formed between the air battery 8 and the inner wall of the main body, the amount of air for the air battery 8 is sufficient. No problems occur due to moisture such as sweat.

It goes without saying that in the second embodiment, the convex portion may be made into a concave portion as in the first embodiment, and a groove-shaped opening may be provided on the bottom surface of either or both of the right case and the left case. .

Although the above embodiment has been described for the case where the battery storage chamber is formed at the bottom of the behind-the-ear hearing aid body, the above embodiment also applies when the battery housing chamber is formed near the center of the behind-the-ear hearing aid body. It is similar,
It is also applicable to in-the-ear hearing aids, spectacle hearing aids, and box-type hearing aids.

As described above, the present invention creates a space between the air cell and the inner wall by providing a protrusion or a recess on the inner wall of the hearing aid body, thereby providing sufficient air to the air cell and removing moisture such as sweat. This prevents the air holes in the air battery from being blocked.

Furthermore, by forming the protrusions associated with the formation of the protrusions or recesses in the longitudinal direction of the hearing aid body, that is, by providing them so as to be substantially perpendicular to the ground when the hearing aid is worn, moisture such as sweat can accumulate in the protrusions. This prevents them from falling quickly.

Furthermore, an opening communicating with the battery housing chamber is formed on the bottom of the hearing aid main body to further ensure air circulation and facilitate the discharge of sweat and the like that have entered the battery housing chamber to the outside world.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional plan view showing an embodiment of the present invention, Fig. 2 is a front view, Fig. 3 is a sectional view taken along line A-A showing the main parts, and Fig. 4 is a cross-sectional view taken along line B-B. 5 is a front view with openings provided at the bottom of the left and right cases, FIG. 6 is a perspective view of the air battery, FIG. 7 is a front view showing the second embodiment, and FIG. FIG. 3 is a cross-sectional view taken along line C-C showing the main parts. 3, 22: Right case, 3a, 4a: Convex part, 3
c, 4c: opening, 4, 22: left case, 5, 2
3: Battery holder, 7, 26: Battery storage chamber.

Claims (1)

[Claims for Utility Model Registration] A convex portion or a concave portion is provided on the inner wall of a battery storage chamber formed inside the main body of the hearing aid to form a space between the housed air battery and the inner wall, and the convex portion Alternatively, a battery storage chamber of a hearing aid, in which a convex portion accompanying the formation of a recess is formed in a direction substantially perpendicular to the ground when the hearing aid is worn, and an opening communicating with the battery storage chamber is formed on the bottom of the hearing aid main body.