RU1780586C - Ampoule for stand-by chemical source of current - Google Patents

Abstract

Usage: chemical current sources. The essence of the invention: the base of the ampoule is made in the form of a hard disk and a sleeve with an external thread, an easily crushed frame is mounted on the disk with an elastic electrolyte container attached to it, the edge of which is wrapped around the periphery of the disk, threaded into an O-ring, turned on it from the back and pressed to the disk with a sealing ring and a piston equipped with an internal thread and screwed onto the sleeve, and two tubes are made in the base on the side of the sleeve for filling the ampoule with electrolyte. 1 ill.

Description

The invention relates to electrical engineering, to chemical current sources (CIT), subjected to long-term (with an indefinite period) storage before putting them into operation.

A backup HIT is known in which the ampoule is a plastic welded bag crushed by a piston upon activation of the source (U.S. Patent No. 3,516,869).

However, not all plastic materials that are highly resistant to electrolytes are thermoplastic and cannot be welded; gluing them also does not bring the desired results. Well-weldable thermoplastic films, as a rule, cannot withstand very aggressive electrolytes, such as, for example, SOCI2 and SOOCI2 for a long time, which shortens the shelf life of the cell (battery).

The aim of the invention is to reduce the pressure of the ampoule and simplify its manufacturing technology.

This goal is achieved by the fact that in the ampoule for backup HIT, including an elastic container with electrolyte and a piston, the base of the ampoule is made in the form of a hard disk and a sleeve with external thread, an easily removable frame with an elastic shell worn on it is fixed on the disk from the side opposite to the sleeve, the edge of which is wrapped around the periphery of the disk, is threaded into an o-ring gasket, turned on it from the back side and pressed against the disk by a sealing ring and a piston equipped with an internal thread and screwed onto the sleeve y and at the bottom by the two sleeve tubes are made for filling with electrolyte.

The drawing schematically shows an ampoule for a battery element HIT, section

The ampoule consists of base 1, which is a disk 2 with a sleeve

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threaded part 3. In the disk 2, an easily removable, non-corroding in the electrolyte frame 4 is fastened, which is a ring 5 on racks 6 hours. The frame is strained with plastic, the resistant to the action of electrolyte 7 elastic shell 8, and its edge is wrapped on the disk 2, then on a sealing gasket-9 is put on and the remaining part of the sheath 8 is turned on it. On the threaded sleeve part 3 of the base 1, a sealing ring 10 is secured against rotation (not shown in Fig. 1), tightened by a nut-piston 11. Inside the sleeve part 3 on dis e 2 from the side of the piston-nut 11 in the base 1 VVA Rena two tubes 12 and 13, one of which serves for sealing the electrolyte 7, Dru-1 n - drain during pouring, after which the two tube zaglushayuts. The collected and filled ampoule is inserted into the ampoule chamber 14 of the backup battery element until it stops 15, and the gap between its walls and the ampoule is sealed by the forming surface of the seal ring 10.

The ampoule operates as follows.

The start of the activation process of the backup battery cells is the supply to the reciprocating space of the ampoule chamber 14 of the pressure of a working fluid (gas, liquid). In this case, the piston nut 11 together with the base 1 will begin to press the ampoule and ring 5 of its frame 4 against the stop 15 of the ampoule chamber 14. The wire racks and frame 4 will begin to deform and electrolyte pressure 7 will be created inside the ampoule, sufficient to in order to break through the shell 8 at the ring 5, since the electrolyte 7 can penetrate neither through the sealed tubes 12 and 13, nor through the gaps between the disk 2 and the clamped edge of the shell 8, the sealing gasket 9 and the sealing ring 10 pressing it

In the further course of the base 1 with the nut-piston 11 of the rack b of the frame 4 screwed onto its threaded sleeve part 3, it has lost stability and is closed until it stops in the disk 2, and since they and the shell 8 have a very small volume, almost the entire electrolyte 7 will be injected into the electrode chamber of the cell through an opening in the abutment 15. Leakage of electrolyte into the piston space through the gap between the wall of the ampoule chamber 14 and the nut-piston 11 is prevented by the end face of the seal ring 10.

The advantages of the invention are the reduced pressure necessary to destroy the ampoule, which entails a reduction in the power of the gas generator to activate the battery and the possibility of reducing its size and weight: the ability to use films for the shell of the ampoule, which well resist the effects of electrolyte on them, but poorly or do not weld at all; assembly technology of the ampoule shell is simple, ---. ,

Claims (1)

SUMMARY OF THE INVENTION An ampoule for a backup chemical current source, including an elastic container with an electrolyte and a piston, characterized in that, in order to improve manufacturability, the base of the ampoule is made in the form of a hard disk and a sleeve with an external thread, an easily crushable surface is fixed to the disk from the side opposite to the sleeve a frame with an elastic jacket worn over it, the edge of which is wrapped around the periphery of the disk, threaded through an 8 O-ring gasket, turned on it from the back and pressed against the disk with a sealing ring and a piston provided with an internal thread and screwed onto the sleeve, and two tubes for filling with electrolyte are made at the base from the side of the sleeve.