JPH0538599U - Electronic component protection structure - Google Patents

Abstract

(57) [Summary] [Purpose] Even if an electronic component such as a surge absorber catches fire, it prevents the spread of fire to other components and enhances safety. [Structure] An electronic component 1 such as a surge absorber that generates high temperature when absorbing an abnormally high voltage is covered with a noncombustible material tube 2. The tip of the incombustible material tube 2 is bent to close the opening at the tip. Even if an electronic component catches fire, it is blocked by a non-combustible material tube to prevent it from spreading to other components.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a protective structure for electronic parts such as surge absorbers.

[0002]

[Prior Art]

 Electrical equipment such as lighting equipment is equipped with electronic components such as surge absorbers that protect the electrical equipment from abnormally high voltage by absorbing abnormally high voltage such as when lightning occurs. However, in recent years, it has been confirmed that electronic parts such as surge absorbers generate heat at high temperatures when abnormally high voltage is absorbed (surge absorber short circuit), which causes an accident such as ignition or smoking. Has reached the end.

[0003]

[Problems to be solved by the device]

 For this reason, measures have been taken such as shutting off the power using a current fuse, but it is possible to prevent the spread of other parts of electrical equipment when electronic parts such as surge absorbers generate heat and catch fire. The current situation is that no measures have been taken to do so, and there was the problem of insufficient safety assurance.

The present invention has been made in view of the above points, and even if an electronic component such as a surge absorber is ignited, it is possible to prevent the spread of fire to other components and improve the safety. It is intended to provide a protection structure for

[0005]

[Means for Solving the Problems]

 The electronic component protection structure according to the present invention covers the electronic component 1 which generates heat at a high temperature when an abnormally high voltage is absorbed by inserting the noncombustible material tube 2 and bending the tip of the noncombustible material tube 2 to open the opening at the tip. It is characterized by being closed.

[0006]

[Action]

 By covering the electronic component 1 with the non-combustible material tube 2, it is possible to prevent the electronic component 1 from being blocked by the non-combustible material tube 2 and spread to another component even if the electronic component 1 ignites. By bending the portion to close the opening at the tip, it is possible to prevent the fire from spreading from the opening of the incombustible material tube 2.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to embodiments. In the present invention, a surge absorber, which is a kind of varistor, is mainly used as the electronic component 1. Further, in the present invention, as the noncombustible material tube 2, for example, the one shown in FIG. 1 (b), which is made into a cylindrical shape by knitting glass fibers in a mesh shape, is used and is nonflammable. In addition, it is preferable to have electrical insulation.

The electronic component 1 is mounted on a substrate 5 such as a printed wiring board. When mounting the non-combustible material tube 2 on the electronic component 1, as shown in FIG. This is carried out by inserting the noncombustible material tube 2 into the component 1 from one opening so as to cover the component 1, and the entire chip portion of the electronic component 1 is covered with the noncombustible material tube 2. Since the surge absorber is generally formed in a disc shape, the work of covering the incombustible material tube 2 is easy. The portion of the incombustible material tube 2 above the electronic component 1 is bent in a V shape so as to close the opening at the tip of the incombustible material tube 2. As shown in FIG. 2, the bent end of the non-combustible material tube 2 is inserted and sandwiched between other electric components 6 mounted on the substrate 5, so that the non-combustible material tube 2 is kept in such a bent state. I have it. If the incombustible material tube 2 is formed of an electric insulator, there will be no problem in the insulation between the electric components 6.

In this way, the electronic component 1 can be protected by the incombustible material tube 2, and the electronic component 1 such as the surge absorber heats up to a high temperature when the abnormal high voltage is absorbed (surge absorber short circuit). Even if it is ignited or smoked, it can be blocked by the incombustible material tube 2 to prevent the spread of other electrical parts. Further, since the tip of the incombustible material tube 2 is bent to close the opening at the tip, it is possible to prevent the spread of fire from the opening of the incombustible material tube 2.

[0010]

[Effect of the device]

 As described above, according to the present invention, the electronic components that generate heat at a high temperature when an abnormally high voltage is absorbed are covered with the tube made of noncombustible material, and the tip of the tube made of noncombustible material is bent to close the opening at the tip. Even if a part ignites, it is possible to prevent it from being blocked by the incombustible material tube and spread to other parts, and it is also possible to prevent the spread of fire from the opening of the incombustible material tube. Even if a fire occurs, it can prevent the spread of fire to other parts and improve safety.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which (a) is a perspective view of an electronic component and (b) is a perspective view of a noncombustible material tube.

FIG. 2 is a schematic view showing an attachment state of the above-mentioned noncombustible material tube.

[Explanation of symbols]

 1 Electronic component 2 Incombustible material tube

Claims (1)

[Scope of utility model registration request] 1. A non-combustible material tube is inserted and covered to cover an electronic component that generates heat at a high temperature when an abnormal high voltage is absorbed, and a tip portion of the non-combustible material tube is bent to close an opening at a tip end of the electronic component. Protective structure.