CN1668139A - Housing for hearing aids - Google Patents

Abstract

The invention relates to a housing for listening devices or hearing aids, comprising sound amplification components inside the housing as well as at least one opening (3) on the outside of the housing and a cover (4) covering the opening (3). The cover is formed in one piece with an outward-facing journals (5) and grooves (6) with stopper provided in the housing so that the journals (5) can be fed into the grooves (6) from the inside of the housing (2) and the outside of the housing can be stopped by the stopper. Thereby, loose of the cover (4) from the housing (2) undesignedly or independently can be reliably prevented, wherein, the cover (4) can be simply assembled and produced with low cost.

Description

Housings for earphones or hearing aids

technical field

The invention relates to a housing for a receiver or a hearing aid according to the preamble of claim 1 .

Background technique

Listening instruments or hearing aids usually have a housing or housing casing which is closed during operation. Since these devices are subjected to a series of environmental influences during operation, these housings must be hermetically closed even if they are composed of several parts. These housings can therefore only be opened with the aid of special tools and by appropriately trained personnel.

However, if the interior of the housing is to be interfered with during work or when the work is interrupted for a short time without fully opening the housing cover, some closable openings must be designed on the housing cover. This may be the case, for example, when an electrical plug-in device has to be manufactured for connection to an external device.

In known listening devices, for example behind-the-ear listening devices with electronic amplification, corresponding openings are provided which can be closed by a cover pivotally mounted on the housing. Such a cover is fixed, for example, by means of a metal shaft guided through the cover and through the housing.

Although such a speaker exhibits a stable connection technology, it has a high space requirement and entails high manufacturing costs due to the multiplicity of components and different materials.

In another variant, the cover can be introduced into the opening from the outside, wherein the cover is equipped with hinge elements which elastically engage into corresponding grooves of the housing. Therefore, although the cover is designed as a single part, there is still the risk that the cover will fall out of the groove due to improper handling and thus be lost or damaged.

Another known variant consists in that the openings can be closed by means of a cover, for example made of rubber, consisting of an elastic hinge and elastic material. The disadvantage of this variant is that, due to the elastic and resilient properties of the hinge portion, the lid, after opening, often snaps or closes automatically before a deliberate intervention is performed through said opening.

Contents of the invention

The object of the present invention is to provide a housing with a cover which does not require a high production effort and which is securely protected against unintentional removal.

According to the invention, this object is achieved by a housing with the features of claim 1 . Furthermore, preferred embodiments result from claims 2 to 6 .

In a housing for a hearing instrument or a hearing aid, there is a sound amplifier element arranged inside the housing, at least one opening formed on the outside, and a cover which can cover the opening. According to the invention, in such a housing the cover is designed as a part with pins pointing outwards. In addition, there are some grooves provided with stoppers in the housing, so that the pins can be introduced into the grooves from the inner side of the housing, while the outer side is stopped by the stoppers. This cover cannot therefore be withdrawn or removed directly from the housing facing forwards, so that the cover is reliably prevented from being unintentionally or voluntarily released. Nevertheless, it can be very simple to attach the cover to the housing, for example also from the front side. For this purpose, the cover must be pushed into the opening of the housing from the front with its end provided with the pin in a swivel state, and then rotated like this until the pin is open from the inside of the housing and there. slot into engagement. Then, the cover can be drawn into its swivel position in the housing, usually against the stop of the groove, and close the opening or close it by a swivel movement substantially around the pin axis. The mouth opens. It is advantageous if the cover and the pin are formed from a single part and can therefore be produced simply and inexpensively, for example from plastic in large quantities.

It is advantageous if the cover is rounded in the area of the pin and preferably has an at least partially cylindrical shape. This region of the cover therefore comes into abutment with a correspondingly designed wall region of the housing and is supported thereon, which results in a high mechanical strength.

Advantageously, the pin is designed on a shaft on the cover. In the mounted state, this shaft thus also simultaneously forms the pivot axis of the cover. For this purpose, the pin preferably has a circular cross section. As a result, the pin can also be easily inserted into the groove and pushed into the groove into the end position of the cover.

It is advantageous if at least one elastic web is arranged on the housing, said web, in the mounted state, engaging at least partially with the lid, preferably in the area of the pin, into an elastic stop and forming part of the swivel hinge of the lid. . Due to the elastic configuration of such webs, the cover can be engaged in a defined end position and thus fixed in this position. At the same time, the part of the cover which is in contact with the web together with the web and the pin guided in the groove advantageously forms a swivel hinge. A reliably pivotable cover is thus formed, which cannot fall out of its end position in the housing either unintentionally or voluntarily.

It is advantageous if the web is designed as part of the housing. The web is advantageously formed directly as a part made of the same material as the housing and can thus be integrated into the production form of the housing.

Advantageously, the housing is formed from at least two housing shells that are detachably connected to one another and is preferably made of plastic. The housing can thus be produced cost-effectively and simply, even in mass production. Since the housing is composed of multiple parts, elements and modules that need to be arranged inside the housing can be easily installed or assembled.

Furthermore, according to the invention, a receiver or hearing aid is proposed which has a housing according to one of claims 1 to 6 .

Description of drawings

An embodiment of the present invention is explained in detail below with reference to the accompanying drawings. in:

Fig. 1 connects the view that the hearing device housing designed by the present invention is in an open state when the cover is in place,

Figure 2 is a longitudinal section through the region of the opening of the listening device according to Figure 1, with the cover in the installed position on the inside,

Fig. 3 is a longitudinal section according to Fig. 2, the lid is in the engaged end position in the open state,

FIG. 4 is a partial sectional view according to FIGS. 2 and 3 with the lid partially open.

Detailed ways

FIG. 1 shows a view of the housing of a hearing instrument for wearing behind the ear, comprising a rear housing shell 1 and a front housing shell 2 . In the front housing shell 2 , a plurality of openings, mainly openings 3 , are formed on the outwardly facing surface for external access to electronic components arranged below the openings 3 . For the sake of brevity, in the description of FIG. 1 only the two housing covers 1 and 2 are described, and the electrical and electronic components usually located inside the housing for sound amplification are not described.

The opening 3 can be closed by a cover 4 which is pivotably arranged in the front housing shell 2 . The lid 4 is here in a half-open state.

A longitudinal section through the region of the opening 3 is depicted in detail in FIG. 2 . The cover 4 can be pushed through the opening 3 from the inside of the housing shell 2 towards the outside. Two outwardly protruding pins 5 are formed on the underside 4' of the cover. The pins 5 can be introduced from the inside into the grooves 6 which are respectively formed on the edges of the openings 3 in the wall of the housing shell 2 . The groove 6 is open towards the interior of the housing shell 2 and, as shown in FIG. 2 , runs along a Z-shape in the wall of the housing shell 2 .

The cover 4 can now be pushed along the groove 6 into the position described in FIG. 3 . There the pin 5 of the cover 4 reaches a rear stop 6 ′ of the groove 6 .

Advantageously, an elastic web 7 is formed in this region in the housing shell 2 , which web enters into an elastic stop position from below against the cover underside 4 ′. A snap-fit connection can be formed between the cover 4 and the housing shell 2 if the cover underside 4 ′ is preferably rounded. It is advantageous here if the cover underside 4' is cylindrically rounded and the web 7 has a correspondingly rounded recess and thus forms a hinge for the cover 4, as shown in particular in FIG. .

The cover 4 cannot now be pulled outwards, since the pin 5 enters the stop here against the groove 6 and securely blocks it. Nevertheless, the cover 4 can be easily fitted and, if necessary, removed after opening the housing cover 2 . The cover 4 preferably consists of a single part and can be produced simply and inexpensively.

In addition, a visual information can be attached to the inwardly facing side 4 ″ of the cover 4 in the closed state. This can be, for example, markings, embossments or labels which are provided, for example, with information about the listener in the form of a barcode.

Claims (7)

1. A housing for a hearing instrument or a hearing aid, with a loudspeaker element arranged inside the housing and at least one opening (3) designed on the outside of the housing and a cover capable of covering said opening (3) The cover (4) is characterized in that the cover (4) consists of a part with a pin (5) directed outwards and a groove (6) provided with a stop in the housing (2) , so that the pin (5) can be introduced into the groove (6) from the inner side of the housing (2), while the outer side is in a stopped state by the stopper. 2. Housing according to claim 1, characterized in that the cover (4) is rounded in the region of the pin (5), preferably has a cylindrical shape at least partially. 3. Housing according to claim 1 or 2, characterized in that the pin (5) is formed on a shaft on the cover (4) and preferably has a circular cross section. 4. The housing according to any one of claims 1 to 3, characterized in that at least one elastic connecting plate (7) is arranged on the housing (2), said connecting plate is at least partly in contact with the The cover (4) preferably engages in a resilient stop in the region of the pin (5) and forms part of a pivot hinge of the cover (4). 5. Housing according to claim 4, characterized in that the web (7) is designed as part of the housing (2). 6. Housing according to one of claims 1 to 5, characterized in that the housing consists of at least two housing covers (1, 2) which are detachably connected to each other and are preferably made of plastic . 7. A receiver or hearing aid having a housing according to one of claims 1 to 6.

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