JPS596017B2 - Ondohuyuzu no Seizouhou - Google Patents

Description

Detailed Description of the Invention This invention is disclosed in Japanese Patent No. 1147172 (Japanese Patent Publication No. 57-29
No. 814) in which all or part of the matters essential to the structure of the invention are the main parts of the invention, and two electrical conductors are connected by a fusible alloy. By mass-producing temperature fuses, which are made by encasing the outside of a thermal element with an insulating material of an appropriate length and width, it is possible to achieve the same purpose as in nuclear power plants, that is, to produce a homogeneous and high-performance temperature fuse. It is intended to be manufactured at low cost.

If -flJ of the present invention is explained with reference to the drawings, the first
As shown in Figures 1, 2, and 3, a strip 2 made of a suitable strip of paper, cloth, nylon, Tetron film, etc. is placed on a suitable base 1, and the upper surface of this strip 2 is placed on a suitable base 1. To,
Two electric conductors 3 and 4 are connected in advance with a fusible alloy 5, and a large number of temperature sensing elements A each having a hard insulating tube 5 such as a glass tube inserted into the outer periphery 1 of the fusible alloy 5 are connected at a substantially constant rate. After arranging them with the interval B maintained, a heat-resistant adhesive 6 such as epoxy resin adhesive 1 is applied to one side of these strips and the entire surface of the temperature sensing element A by brush coating, spray coating, etc. After this adhesive has dried and hardened, the strip 2 is cut along with the adhesive layer 6 between each temperature sensing element A, so that the strip 2 is placed on the upper surface of the center part of the strip 2 as shown in FIG. It is possible to manufacture a large number of temperature fuses B each having a temperature-sensitive element A covered with a heat-resistant adhesive 6 and a heat-resistant adhesive 6 fixed to each other.

Since a heat-resistant adhesive 6 is applied onto the strip 2 covered with the fusible alloy 5 by the insulating tube 7, it is easy to expand and melt when the fusible alloy 5 rises above a specified temperature. At the same time, it is possible to prevent the cut fusible alloy from scattering outside the strip or the adhesive layer.

As described above, the present invention provides a temperature sensing element in which two electrical conductors are connected using a fusible alloy, and a hard insulating tube inserted into the fusible alloy part is inserted into a strip of paper, cloth, nylon, or Tetron film, etc. A large number of them are arranged at approximately constant intervals on the top surface of the piece,
After applying a heat-resistant adhesive' to the entire surface of the strip and the temperature sensing element or insulating tube, the adhesive layer between each temperature sensing element and the strip are cut to create uniform dimensions. The feature is that high-performance temperature fuses can be mass-produced at extremely low cost.

Additional relations The present invention is disclosed in Japanese Patent No. 1147172 (Japanese Patent Publication No. 57-2981).
All or a part of the matters indispensable to the structure of the invention in Item 4) are made into the main part of the indispensable features, that is, between nuclear power plants, the thermosensor is made of fusible alloy. They are arranged on the adhesive surface of the insulation enclosure adhesive tape with hard insulating tubes inserted thereon, and a heat-resistant adhesive is applied on these temperature-sensitive elements and the adhesive tape. By using a strip made of paper, cloth, nylon or Tetron film instead of the above insulating adhesive tape, production costs can be further reduced and mass production of homogeneous, high performance temperature fuses can be made possible. It is something that

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view;
FIG. 2 is an enlarged longitudinal sectional front view, and FIG. 3 is a longitudinal sectional view taken along the line XX in FIG. Explanation of the main symbols: 1 is the base plate, 2 is the strip, 3 and 4 are the electrical conductors, 5 is the fusible alloy, 6 is the heat-resistant adhesive, 7 is the hard insulating tube, A is the temperature sensing element, B is the interval.

Claims (1)

[Claims] 1. Insert a hard insulating tube around the outer periphery of the fusible alloy part of a temperature-sensitive element in which two electrical conductors are connected using a fusible alloy, and insert this into a strip of paper, cloth, nylon, or Tetron film. A large number of thermosensors are placed at approximately constant intervals, and a heat-resistant adhesive is applied on the thermosensors and strips inserted into the hard insulating tubes, and after drying and curing, each thermosensor By cutting the strip together with the adhesive between them, a large number of temperature fuses are manufactured, each having a temperature sensing element fitted into a hard insulating tube covered with adhesive on the upper surface of the strip. A method of manufacturing a temperature fuse.