JPS58123706A - Solenoid - Google Patents

Abstract

PURPOSE:To prevent an exciting coil from burning and the vibration as well as noise produced by the exciting coil in operation by soaking the exciting coil and a moving iron core into oil. CONSTITUTION:A window hole 4 made in metal fittings 3 within a plastic case 2 is fitted with an exciting coil 5 and a moving iron core 6 is inserted in the inside of the coil 5. An expanded pedestal 7 formed on the upper end of the iron core 6 is placed on the upper end of the metal fittings 3. A moving rod 9 is installed on the center of the expanded pedestal 7 with a shaft 8 and on the upper end periphery of the case 2 and then outwardly projected from the upper side of a cover 10 that can be burned. The case 2 is filled with oil H to soak the exciting coil 5, moving iron core 6 and metal fittings in the oil H.

Description

[Detailed Description of the Invention] The invention relates to a solenoid, and the invention relates to a solenoid with an oil/L in its case.
The purpose of this is to prevent burning of the excitation coil, as well as vibration and noise during operation, by soaking the excitation coil and movable iron core in the same oil.

Embodiments of the present invention will be described below with reference to the drawings.

First, in the sonoid 1/ of the first embodiment shown in FIG. 1, a □
The excitation coil 5 is fitted into the window hole 4, and the movable iron core 6 is inserted inside it, and the bulging seat 7 formed at the upper end of the iron core 6 is seated on the upper end of the mounting bracket A3. A movable rod 9 with a shaft 8 mounted on the center of the bulging seat 7 is exposed to the outside of the case 2 from the upper part of a flexible cover 10 attached to the upper peripheral edge of the case 2. And case 2
Oil H is poured into the interior up to the top, and the excitation coil 5, movable iron core 6, and mounting bracket 3 are soaked in the same oil H.

Immersing the coil in oil/L/H in this way prevents the excited coil/L15 from burning, and also serves as a cushion when the movable rod 9 moves up and down in conjunction with the movable iron core 6, preventing vibrations and sweating during operation. can be prevented.

Furthermore, if the movable rod 9 is connected to its outer end and connected to the driven body by valve the spring 11 as shown in the second embodiment shown in FIG. 2, vibration and noise can be further reduced. Prevented.

In the present invention described in detail above, since oil H is placed in the case 2 to soak the excitation coil 5 and the movable iron core 6, the excitation coil/I
15 is also effective in preventing movement and noise during operation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the solenoid of the first embodiment, and FIG. 2 is a sectional view showing the solenoid of the second embodiment.

Claims (1)

[Claims] 1. An excitation coil (5) and a movable iron core (6) are provided inside the case (2), and a movable rod (9) interlocked with the movable iron core (6) is provided outside the case (2). In the exposed solenoid, the excitation coil (5) and movable iron core (6) are inside the case (2).
) A solenoid characterized by containing oil (H) that soaks the water. 2. The solenoid according to claim 1, wherein a spring (11) is connected to the outer end of the movable rod (9).