JPS60141142A - Flywheel power source - Google Patents

Abstract

PURPOSE:To prevent a lower support and bearings from seizing by efficiently conducting heat of the lower support made of a bearing retainer through an engaging member of the lower portion to a casing side. CONSTITUTION:A hole 30 is formed at the central position of the bottom of a bearing retainer 6, and grooves 31, 31 of concentrical disposition are formed on the outer periphery. A projection 33 engaged in noncontacting with the hole 30 and fins 34, 34 engaged in noncontacting with the grooves 31, 31 are formed at a placing portion 32 for placing the retainr 6 as the bottom of a clamp 2. Heat from the retainer 6 is efficiently dissipated to the casing side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a flywheel power supply device, and particularly to a C-structure of a shaft and bearing integrated into a flywheel.

[Prior art]

2. Description of the Related Art Conventionally, a constant voltage constant frequency power supply device (CVCF device) with power outage compensation has been known to compensate for a power outage accident.

This converts AC power that is normally input from an external power source into DC using a converter, then converts it into constant voltage, constant frequency AC using an inverter, and supplies it to a load such as a computer.The battery is also charged by the external power source. put. In the event of a power outage, the discharge output of the battery is supplied to the load to compensate.

However, this method requires a lot of man-hours to maintain the battery, and also has the disadvantage that the pantry is large in external size and heavy, making it difficult to handle.

Therefore, a flywheel power supply device shown in FIG. 1 has recently been proposed. In the figure, l is a cylindrical casing, which is a closed container and has a vacuum inside. A fixture 2 having a hole 2a in the center is fixed to the bottom 1a of the casing 1, and an iron core 3 is attached around the fixture 2.
A stator 3 consisting of a winding 3b and a winding 3b is fixed.

Around the stator 3, the inner periphery of a cylindrical rotor 5, which is formed by projecting downward from the outer lower part of the flywheel 4, is positioned at regular intervals. A permanent magnet 10 is embedded in the inner circumference of the rotor 5. Axis 4 from the vertical center of the flywheel 4 above
a and 4b protrude, the tip of the shaft 4a is spherical, and the receiving part 6 of the spherical bearing pedestal 6 is provided in the hole 2a of the fixture 2.
Supported by a. A rotating shaft 4b protruding from above the flywheel 4 has a bearing 7 mounted on the top plate 1b side of the casing 1.
The bearing 8 is fitted into and supported by a recess 8a of the bearing 8, which is held through the bearing 8. Therefore, since the rotor 5 and the flywheel 4 are integrated and the shafts 4a and 4b are both supported, the rotor 5 and the flywheel 4 rotate together inside the casing 1.

The flywheel power supply is configured as described above and acts as a synchronous motor generator. That is, in normal times, when a voltage is applied to the winding 3b of the stator 3 from an external power source, the rotor 5 rotates, acts as an electric motor, and the flywheel 4 rotates at high speed, thereby storing energy. In the event of an abnormality such as a power outage of the external power source, the rotary energy stored in the flywheel 4 and rotor 5 acts as a generator that supplies power from the stator 3 to the load. Therefore, flywheel power supplies that act as synchronous motor generators are used as power failure compensation devices for computers and the like.

As shown in FIG. 2, the spherical bearing pedestal 6 contacts the inner wall of the hole 2a of the fixture 2 via, for example, an O-ring 20 provided on the outer circumferential side. Further, it is grounded to the bottom wall 23 of the hole 2a via a ball 22 provided on the bottom wall 21. As a result, as the shaft 4a rotates, the bearing 4 integrated with it
When f rotates, the bearing pedestal 6 also swings to some extent.

Note that 28 is lubricating oil.

However, when the spherical bearing 4f rotates, heat is generated due to friction in this portion, and the entire bearing pedestal 6 becomes hot and seizes, which has the disadvantage of interfering with rotational operation.

[Summary of the invention]

The present invention has been made in order to eliminate the above-mentioned drawbacks, and the present invention has been made in such a way that the bottom of the lower support of the flywheel and the mounting part on which this lower support is placed are engaged with each other at a constant distance of 111tMl1. A member is provided, and the meshing member allows heat to be efficiently conducted from the lower support portion toward the casing.

[Embodiments of the invention]

FIG. 3 is a simplified configuration diagram showing one embodiment of the flywheel power supply device according to the present invention, and the same reference numerals are used for the same or corresponding parts as in FIG. 2. In FIG. 3, the bottom of the bearing pedestal 6 is formed with a hole 30 at the center and grooves 31, 31 arranged concentrically around the outer periphery thereof. A mounting section 3 on which a bearing pedestal 6 serving as the bottom of the fixture 2 is mounted.
2 is formed with a protrusion 33 that fits into the hole 30 without contact, and a fin 34, which fits into the groove 31.31 without contact.

By interlocking the bottom of the hair ring pedestal 6 with the mounting part 32 in this way, it is possible to widen the opposing area between the two, and the heat from the hair ring pedestal 6 can be efficiently transferred to the casing 1 side. Heat can be dissipated to

Further, a damper effect is obtained in which the lateral movement of the bearing pedestal 6 is restricted by the gap between the side wall surface of the groove 31 and the fin 34.

〔Effect of the invention〕

As explained above, according to the present invention, the heat of the lower support part consisting of the bearing pedestal can be efficiently conducted to the casing side through the meshing member at the lower part, so that the heat of the lower support part, hair ring, etc. Burn-in can be prevented and reliability can be improved.

[Brief explanation of the drawing]

1 and 2 are simplified configuration diagrams showing an example of a conventional flywheel power supply device, and FIG. 3 is a simplified configuration diagram showing an embodiment of the flywheel power supply device according to the present invention. DESCRIPTION OF SYMBOLS 1...Casing, 2...Fixing tool, 3...Stator, 4...Flywheel, 5...Rotor, 6...
Bearing pedestal, 22... Hair ring, 30... Hole, 31... Groove, 32... Placement part, 33... Protrusion,
34...fin. Note that the same reference numerals are used for the same or corresponding parts in the figures. Agent: Masuo Oiwa (2 people), continuation of amendment (voluntary), 1987/77, 2nd day, title of invention: flywheel power supply device 3, person making the amendment, representative: Katayuni Kata, 5. Scope of claims to be amended and detailed description of the invention. G. Contents of amendment A1) The scope of claims is amended as shown in the attached sheet. (The phrase ``Synchronous motor generator'' on page 3, line 18 of the 21 Specification is corrected to 1 generator motor. (3) The phrase ``synchronous motor generator'' on page 4, line 6 of the same document is corrected. This is amended to be a "generator motor." The scope of the above claims (11) includes a rotating shaft protruding from the top and bottom of the flywheel, the bottoms of an upper support and a lower support that support these rotating shafts, and a lower support on which the lower support is placed. and the mounting section for a certain period of time,
2. The flywheel power supply device according to claim 1, further comprising a meshing member which faces each other at a certain distance between them.

Claims (1)

[Scope of Claims] (11) A rotating shaft protruding from the top and bottom of the flywheel, an upper support part and a lower supporting part that support the rotating shaft, and a rotating shaft that applies a rotating force to the flywheel and that applies the rotating force electrically. In a flywheel power supply device equipped with a motor-generator section that converts into energy, the lower support section is rotatable, and the bottom of the lower support section and the mounting section on which the lower support section is placed are spaced apart by a certain distance. A flywheel power supply device characterized in that a meshing member is provided between the two and facing each other at a certain distance. (2) A bearing is interposed between the lower support part and the mounting part. A flywheel power supply device according to claim 1, comprising: