JP2904036B2 - Manufacturing method of thermal battery with mounting bracket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a thermal battery with a mounting bracket.

[0002]

2. Description of the Related Art A thermal battery is a battery using a molten salt as an electrolyte. During storage, power cannot be supplied to the outside because the electrolyte is a non-conductive solid salt. When the electrolyte is heated by burning the heating element and a molten state is obtained with good conductivity, electric power can be supplied to the outside.

[0003] Such a thermal battery can (1) be stored for more than 10 years. (2) Large output discharge is possible. (3) Usable in a wide temperature range of -55 to + 75 ° C. (4) Strong against vibration and impact. It has been put to practical use as a power source for flying objects and emergency use.

[0004] Usually, a thermal battery is used by being fixed to a device or the like with bolts or the like. However, since the mounting shape is determined by the shape of the device, it is necessary to supply a thermal battery in accordance with the shape.

[0005] Inside the thermal battery is an ignition ball or a squib,
Since the heat-conducting material and the heating element are stored, when welding the mounting bracket to the side of the thermal battery, if the welding heat is too strong, the thermal battery will be activated or a hole will be opened in the battery case, making it unusable. Or become. In addition, if the welding is insufficient, the mounting bracket may come off. Therefore, it is necessary to set welding conditions very strictly.

Therefore, as shown in FIG. 3, when a specification for mounting and fixing the side surface of the battery case is required, the thermal battery 1 and the mounting bracket 3 are separately provided, or a battery having the mounting bracket previously attached thereto. A method of using a case to store components inside, and then welding the battery cover to seal the inside is adopted.

[0007]

However, if the thermal battery and the mounting bracket are separated, sufficient attention and confirmation are required for the mounting operation such as positioning of the thermal battery, and the operation becomes very complicated. In the method of using a battery case with a mounting bracket attached in advance, storing the components inside, and then welding the battery cover, the battery cover cannot be welded if the mounting bracket protrudes from the battery case. Subject to the constraints of
There is a problem.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method of easily manufacturing a thermal battery with a mounting bracket.

[0009]

Accordingly, a thickness of 0.2 to 5 mm is required.
manufacturing a thermal battery provided with a stainless steel or iron battery case having a thickness of 0.5 mm and a stainless steel or iron thermal battery mounting bracket having a thickness of 0.2 to 5 mm having a welding hole having a diameter of 0.5 to 1.5 mm. This problem is solved by adopting a method of manufacturing a thermal battery with a mounting bracket, which comprises a step of performing welding and a step of welding the thermal battery and the thermal battery mounting bracket at the welding holes. The order of the process of manufacturing the thermal battery and the process of manufacturing the thermal battery mounting bracket is not particularly specified.

[0010]

FIG. 1 is a view showing a process of the present invention, and FIG.
FIG. 4 is a view showing a step of welding a mounting bracket to a thermal battery.

The thermal battery 1 is manufactured by a well-known and conventional method, but generally has a cylindrical shape in which several terminals 6 are arranged at one end as shown in FIG. 2 is thickness 0.2-5m
m stainless steel or iron battery case.

The stainless steel or iron mounting bracket 3 is formed according to the outer shape of the thermal battery 1. In this example, a thermal battery grip portion 3a having a substantially U-shaped cross section adapted to the cylindrical thermal battery 1 and a fixing portion 3b to a device are provided. The thickness of the mounting bracket 3 is 0.2 to 5 mm as in the case of the battery case.

The mounting bracket 3 is provided with a welding hole 3c having a diameter of 0.5 to 1.5 mm. The number of the welding holes 3c is a design item appropriately set according to the size and shape of the thermal battery 1.
The position of the welding hole 3c is also the same, but in order to minimize the influence of the heat during welding on the thermal battery, the ignition ball, the squib, the squib and the squib, etc. contained inside the thermal battery should be as far away as possible. It is preferable to set the position.

The thermal battery and the mounting bracket are welded at the welding hole 3c to obtain a thermal battery with the mounting bracket. The welding method can be appropriately selected from spot welding, arc welding, laser welding and the like.

In general, even when welding conditions are set to an appropriate value, the arc during welding is not constant and flies randomly, so that the welding conditions become unstable and the thermal battery is activated or a hole is opened in the battery case. It is necessary to set welding conditions very strictly, because it may become impossible or the mounting bracket may come off.

The present inventors have developed a thermal battery having a stainless steel or iron battery case having a thickness of 0.2 to 5 mm,
As a result of various examinations on welding conditions with a 0.2 to 5 mm thick stainless steel or iron thermal battery mounting bracket having a welding hole with a diameter of 1.5 mm to 1.5 mm, a welding site of the thermal battery mounting bracket was set to 0.1 mm.
It has been found that if a hole of 5 to 1.5 mm is provided, welding can be performed easily and stably. This is presumably because the arc at the time of welding always jumps to the edge of the hole of 0.5 to 1.5 mm, thereby stabilizing the welding conditions and sufficiently melting the mounting bracket 3.

[0017]

As described above, the method for producing a thermal battery with a mounting bracket according to the present invention comprises the steps of producing a thermal battery provided with a stainless steel or iron battery case having a thickness of 0.2 to 5 mm; Thickness having a welding hole with a diameter of 0.5 to 1.5 mm
It is characterized by comprising a step of manufacturing a stainless steel or iron thermal battery mounting bracket of 2 to 5 mm, and a step of welding the thermal battery and the thermal battery mounting bracket at the welding holes.

According to this, it is possible to easily attach the mounting bracket having such a shape that the thermal battery and the mounting bracket must be separated to the thermal battery, so that the mounting work is easy and the heat-mounting mounting bracket can be mass-produced. Battery can be supplied.

[Brief description of the drawings]

FIG. 1 is a view showing a process of the present invention.

FIG. 2 is a view showing a welding process of the battery case and the mounting bracket according to the present invention.

FIG. 3 is a diagram illustrating a method of attaching a thermal battery to a device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thermal battery 2 Battery case 3 Mounting bracket

Claims (1)

(57) [Claims] 1. A step of manufacturing a thermal battery provided with a stainless steel or iron battery case having a thickness of 0.2 to 5 mm;
0.2 to 5 mm thick with 5 to 1.5 mm diameter welding holes
A method for manufacturing a thermal battery with a mounting bracket, comprising the steps of: manufacturing a stainless steel or iron thermal battery mounting bracket; and welding the thermal battery and the heat battery mounting bracket at the welding holes.