THERMAL TRIGGERING ELEMENT

• US 20200129798A1
• Filed: 06/19/2018
• Published: 04/30/2020
• Est. Priority Date: 06/21/2017
• Status: Abandoned Application

• Current Assignee: Job Lizenz GmbH & Company
• Original Assignee: Job Lizenz GmbH & Co. KG
• Inventors: KLUG, Rudiger, TESCHNER, Jurgen, MULLER, Bodo
• Application Number:
  US16/619,529
• Publication Number:
  US 20200129798A1
• Time in Patent Office: Days
• CPC Class Codes: A62C 37/14 with frangible vessels
• CPC Class Codes: H01H 37/36 actuated due to expansion or contraction of a fluid with or without vaporisation the fluid forming a contact of the switch H01H29/04, H01H29/30

Abstract

A thermal triggering element having a vessel body with an outer wall formed from a rupturing material, and having a cavity enclosed by the outer wall and situated in the interior of the vessel body, and in which a triggering liquid is enclosed. The vessel body is formed so as to extend along an axial direction, with a tubular central section extending in the axial direction, and with two end sections located at the respective axial ends and in which the cavity is closed off in the manner of a cap. In order for the thermal triggering element to be protected against damage by shocks, the triggering element has a permanently acting reinforcement which reinforces the rupturing material with respect to shock loads acting transversely with respect to the longitudinal direction.

Claims

1. A thermal triggering element comprising:

a vessel body having an outer wall formed from a rupturing material;

a cavity enclosed by the outer wall and which is situated in an interior of the vessel body;

a triggering liquid enclosed in the cavity;

wherein the vessel body is formed so as to extend along an axial direction, with a tubular central section of the vessel body extending in the axial direction, and with two end sections which are situated at respective axial ends of the tubular central section; and

in which the cavity is closed off in the manner of a cap;

wherein the triggering element has a permanently acting reinforcement which reinforces the rupturing material with respect to shock loads acting transversely with respect to the axial direction.

2. The thermal triggering element according to claim 1, wherein the reinforcement contains auxetic material, wherein the auxetic material is oriented in a manner such that it exhibits a reinforcing effect on the outer wall upon an external application of force directed transversely with respect to the axial direction.

3. The thermal triggering element according to claim 1, wherein the reinforcement has one or more dilatant liquids or a material produced therefrom.

4. The thermal triggering element according to claim 1, wherein the reinforcement has a material which is solid and stiff in a temperature range below an intended triggering temperature of the triggering element, and wherein the material is flexible at the triggering temperature.

5. The thermal triggering element according to claim 1, wherein the reinforcement has a textile structure which is produced, impregnated, or coated with an auxetic material, one or more dilatant liquids, or a material produced from one or more dilatant liquids, and/or from a material which is solid and stiff in a temperature range below an intended triggering temperature of the triggering element and which is flexible at the triggering temperature.

6. The thermal triggering element according to claim 1, wherein the reinforcement comprises a coating applied to an outer side of the outer wall, or a collar placed on the outer side of the outer wall, or a protective curtain arranged on the outer side of the outer wall.

7. The thermal triggering element according to claim 1, wherein the reinforcement is provided essentially along the entire tubular central section.

8. The thermal triggering element according to claim 1, wherein the reinforcement is a water-soluble material or a water-soluble carrier material.

9. The thermal triggering element claim 1, wherein the rupturing material is glass.

10. The thermal triggering element according to claim 3, wherein the one or more dilatant liquids or the material produced therefrom is a foam.