JPS62254411A - Reactor device - Google Patents

Abstract

PURPOSE:To contrive the reduction of the generation of a noise due to magnetic vibration generated in a reactor body 1 by double restraining it by means of a spring mass system formed of an insulating material having elastic properties which is put inside a reactor body container and of a material of vibration insulation for supporting the container. CONSTITUTION:An insulating material 4 put between a reactor body 1 and a wall of a container 5 for the reactor 1 composes a spring mass system, which absorbes magnetic vibration of the reactor body 1 and exceedingly decreases the vibration conducted to the wall of the container 5. Besides, as there is no point where the reactor body 1 and the container 5 are in direct contact with each other, a solid sound generated in the container 5 is also decreased exceedingly. Furthermore, as there is a rubber vibration insulator 7 interposed between the container 5 and a supporting board 6 for the container 5, the vibration conducted from the container 5 to a supporting board 6 further decreases. Accordingly, the vibration conducted from the supporting board 6 to a mounting board 2 of a semiconductor converting device becomes extremely weak and the solid sound based on that vibration decreases distinguishedly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a reactor device that includes a reactor body inside a sealed box and is installed in a semiconductor conversion device such as an inverter. When installing this type of reactor device, it is desirable to give sufficient consideration to reducing the absorption of magnetic vibrations generated in the internal reactor body and the resulting noise, and to effectively cooling the reactor body.

[Prior art and its problems]

Conventionally, when installing a reactor device necessary for semiconductor conversion equipment such as an inverter, it is usually stored in a sealed box with a soundproof wall to reduce noise caused by magnetic vibrations generated by the reactor body. , it is common to attach it to a predetermined location of a semiconductor conversion device. However, among the noise caused by the magnetic vibration of the reactor body housed in this type of sealed box, the transmitted sound is absorbed by the soundproof walls of the sealed box and is considerably attenuated. The magnetic vibrations of the reactor body are transmitted to the sealed box itself through the screwed parts, and the sealed box itself becomes a sound source and generates solid sound.
The painstaking measure of providing a soundproof wall in the sealed box does not have the expected effect, and in addition to the disadvantage that vibrations of the sealed box itself cannot be prevented, the reactor body usually does not take any measures to dissipate its heat. Since it is fixed in the internal space of the sealed box, the heat generated by the reactor is blocked by the air layer inside the sealed box and is difficult to dissipate to the outside from the wall of the sealed box, which tends to cause overheating of the reactor body. It comes with a drawback.

[Purpose of the invention]

In view of the above-mentioned drawbacks associated with conventional reactor devices in which the reactor body is housed in a sealed box equipped with a soundproof wall and attached to a semiconductor converter, etc., the present invention provides a simple means for reducing the magnetic vibration of the reactor body. It is an object of the present invention to provide a reactor device which is attached to the semiconductor converter device so as to significantly reduce the noise caused by the reactor device and to effectively cool the reactor device.

[Key points of the invention]

In order to achieve the above-mentioned object, the present invention provides the above-mentioned reactor device, in which a suitable insulating material having elasticity and excellent thermal conductivity is interposed between the reactor body and the vessel wall to conduct heat. The semiconductor conversion device is housed in a sealed box with good properties, and a holding plate, on which the box is supported via a suitable vibration-proofing material, is fixed at an appropriate position of the semiconductor conversion device. This is intended to effectively cool the reactor body housed in the sealed box while reducing its magnetic vibration and noise based thereon.

[Embodiments of the invention]

Next, the present invention will be described in detail based on embodiments shown in the drawings.

In the reactor device according to the present invention illustrated in FIG. 1, a suitable insulating material 4 having elasticity and excellent thermal conductivity, such as a heat-resistant silicone rubber molding material, is provided between the reactor body 1 and the reactor wall. The reactor body storage box 5 is housed inside a reactor body storage box 5 which is filled and sealed as shown in FIG. The heat sink is constructed of a metal having good thermal conductivity, such as aluminum, as possible. Further, the storage box 5 is fixed to a holding plate 6 with screws 8 through a vibration isolating material 7, such as vibration isolating rubber, and the holding plate 6 is further attached to the plate 2 by screws 3 provided at appropriate positions of the semiconductor converter. It is as if it were fixed to .

In this case, the holding plate 6 is configured as a sliding plate as shown in FIG.
This has the advantage that positioning and fixing of the reactor main body storage box 5 inside the semiconductor converter device can be simplified.

As mentioned above, predetermined units inside the semiconductor conversion device.

When the reactor body 1 inside the reactor body storage box 5 fixed in place is energized, magnetic vibrations occur in the reactor body 1, as in the case of the conventional reactor body storage box. In the box 5, the magnetic vibration of the packing body 1 is absorbed between the reactor body 1 housed inside and the wall of the storage box 5, and the vibration transmitted to the wall of the storage box 5 is significantly attenuated. do. Furthermore, since there is no direct contact between the reactor body 1 and the storage box 5, solid-body noise generated in the storage box is also significantly reduced.

Furthermore, since a vibration isolating rubber 7 is interposed between the reactor main body storage box 5 and its holding plate 6, the vibration isolating rubber 7 is inserted from the storage box 5.
Since the vibrations transmitted to the holding plate 6 via the holding plate 6 are further attenuated, the vibrations transmitted from the holding plate 6 to the plate 2 when the semiconductor converter is mounted are very weak, and the solid-state sound based thereon is also significantly reduced.

On the other hand, the reactor body storage box of the reactor device according to the present invention is itself made of metal with good heat conductivity, and an insulating material with excellent heat conductivity is filled between the vessel wall and the reactor body 1 inside. Therefore, the heat generated in the reactor body 1 is quickly transmitted to the container wall of the storage box through the insulating material 4 and released from the surface to the outside world. As explained above, in a reactor device in which a reactor body is built inside a sealed box and is attached to a semiconductor conversion device such as an inverter, the reactor body is connected to a wall of the reactor with elasticity and heat conduction. The semiconductor is housed inside a sealed box with good thermal conductivity with an appropriate insulating material having excellent properties interposed therebetween, and a holding plate on which the box is supported via an appropriate vibration isolating material is attached to the semiconductor. By fixing the converter at a suitable location, the magnetic vibrations generated in the reactor body are absorbed by the spring mass system formed by the elastic insulating material filled inside the reactor body storage box and the barrier supporting the storage box. By doubly suppressing the noise caused by the magnetic vibration, the heat generated in the reactor body can be quickly absorbed through the insulating material with excellent thermal conductivity. By transmitting the heat to the wall of the box and dissipating it from the surface of the storage box, which also has good thermal conductivity, to the outside world, it is possible to prevent overheating of the reactor main body.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical cross-sectional view illustrating the configuration of a reactor device according to the present invention and its attachment to a semiconductor device, etc., and FIG. 1 is a schematic plan view illustrating the relationship between FIG. 1 reactor body, 2 mounting board inside the semiconductor conversion device, 4 insulating material, 5 reactor body storage box, 6 holding plate, 7 vibration isolating material.

Claims (1)

[Claims] 1) In a reactor device in which a reactor body is built in a sealed box and is attached to a semiconductor conversion device such as an inverter, an elastic material is provided between the reactor body and the vessel wall. The device is housed inside a sealed box with an appropriate insulating material interposed therebetween, and a holding plate, on which the box is supported via an appropriate vibration isolating material, is fixed to an appropriate location of the semiconductor conversion device, etc. A reactor device characterized by: 2) In the reactor device according to claim 1, the appropriate insulating material having elasticity has excellent thermal conductivity, and the box body is also made of a material with good thermal conductivity. A reactor device characterized by: