CS230860B1 - Device for connectiong of carbonaceous receiver inset - Google Patents

Abstract

Carbon Microphone Attachment inserts in the telephone set carbon microphone connection inserts in a contact telephone pens or socket connections. The versatility of connectivity is in use contact electrode knife a case with cut-out contact knife in its planar part.

Description

The invention provides devices for connecting a carbon microphone insert in a telephone apparatus by contact pens or plug connections.

Hitherto known carbon microphone inserts with the possibility of electrical connection in a telephone device by means of contact pens or spray joints have an electrical outlet from the movable electrode transferred by the sleeve or by a contact knife by a neckline and simultaneous bending from the cone surface of the sleeve. The electrical outlet of the fixed electrode consists of a contact lid and a contact knife. The contact knives allow the carbon microphone insert in the telephone to be connected by spray connections, the housing and the contact lid with the contact pens. The hole has been formed after the contact knife has been pressed from the cone surface of the housing, requiring documented sealing in order not to disturb the acoustic conditions of the microphone insert and the ingress of moisture into its active spaces. This requires that the insulating pad be manufactured with sufficient precision to form the hole sufficiently sealed. The electrical outlet of the solid electrode consists of a contact lid and a contact knife, which complicates the carbon microphone insert structurally.

The principle of a carbon microphone insertion device in a telephone is to use a fixed electrode contact knife to connect the microphone insert with a contact pen or a plug connection. The electrical outlet of the movable electrode consists of a housing and a contact knife cut out in plane time! housing.

Cutting the contact knife and simultaneously bending it in the planar part of the housing does not require sealing of the resulting hole in the housing. After the carbon microphone insert has been assembled, the insulating mat is pressed with its planar surface to the planar part of the housing, so that the acoustic conditions of the insert cannot be disturbed by the opening or moisture penetrating into its active spaces.

The contact knife forming the electrical outlet of the fixed electrode allows the carbon microphone insert in the telephone to be connected by a contact pen or a plug connection, which substantially simplifies the design of the microphone insert. The contact blade forming the electrical outlet of the fixed electrode may extend from the microphone insert at an angle, perpendicular or parallel to the planar portion of the housing.

Three drawings are attached to the description of the invention. In FIG. 1 is a plan view of the housing and its section through the plane A-A. In FIG. 2, there remains an insulating pad with a contact knife forming the electrical outlet of the fixed electrode. Fig. 3 and FIG. 4 are further examples of embodiments of a contact knife and an insulating pad. In FIG. 5 is a partial cross-sectional view of a carbon microphone insert with the possibility of electrical connection in a telephone apparatus by contact pens or plug connections.

The first contact knife 1 (FIG. 1j forming the electrical outlet of the movable electrode 6 (FIG. 5) is cut and simultaneously bent in the planar part of the housing 2. The first contact knife 1 (FIG. 1) protrudes from the planar part of the housing 2 at a certain angle and bend. The second contact blade (FIG. 2) forming the electrical outlet of the fixed electrode 5 (FIG. 5) is pushed into the insulating mat 4 by a gentle pressure so that they form a compact unit. 3) and (Fig. 4) are given further examples of the embodiment of the contact knife 3 and the insulating pad 4. When assembling the carbon microphone insert (Fig. 5), the insulating pad is pressed with its planar surface against the planar portion of the housing 2 so that parts of the housing 2 after cutting out the first contact knife 1.

At the same time, the insulating pad 4 prevents the short-circuit of the housing 2 of the second contact knife 3, closes the opening in the fixed electrode 5 and by its flexibility compensates the manufacturing tolerances of the individual parts of the microphone insert.

The intermediate liner 9 divides the space between the housing 2 and the lid 10 into two separate volumes interconnected by the openings in the intermediate liner 9. The body of the chamber 7 determines the distance between the movable electrode 8 and the fixed electrode 5, creating space for the carbon fill 8.

Claims (3)

OBJECT An apparatus for connecting a carbon microphone insert in a telephone apparatus with contact tongues or sockets, characterized in that the electrical outlet of the movable electrode (6) is formed by a housing (2) and a first contact knife (1) formed in a planar housing portion (2) wherein the electrical outlet of the fixed electrode (5) is formed by a second contact blade (3) extending through the insulating pad (4). A device for connecting a carbon microphone insert in a telephone apparatus according to claim 1, characterized in that the insulating pad (4) is pressed by its flat surface to the planar portion of the housing (2) so that an opening after the first contact knife (1) formed in the case (2) overlaps. 3 sheets of shouts 230860 23086tí 230860