KR20190068772A - Magnetic air spring unit for earthquake - Google Patents

Abstract

The present invention relates to a magnetic air spring unit for earthquake resistance, and more specifically, relates to a magnetic air spring unit for earthquake resistance, wherein in order to provide a magnetic air spring unit for an electric panel or a control panel having earthquake resistance performance, a cylindrical air cylinder formed with a polyurethane material having excellent elasticity, tensile strength, and durability is filled with compressed air, and in upper and lower portions of a central center axis of an air spring, a strong magnetic resilience elastic force of a permanent magnet is used to effectively absorb and dampen a displacement force applied by being generated in X, Y, and Z-axis directions of vertical and horizontal directions due to an earthquake or large vibration, thereby preventing secondary damage caused by an earthquake or vibration. Therefore, a high efficient earthquake resistance function can be provided.

Description

[0001] Magnetic air spring unit for earthquake [0002]

DESCRIPTION OF THE INVENTION [

The present invention relates to a magnetic air cylinder unit for an internal combustion engine, and more particularly, to a shock absorber for a shock-absorbing magnetic air cylinder unit, which is capable of generating shocks and vibrations of an impact force generated in X, Y, And a control panel to supply electricity stably by absorbing and attenuating vibrations and shocks using the elastic force of air and the magnetic repulsive elastic force of the permanent magnet of the magnetic air cylinder unit which is completely sealed and filled with compressed air And to provide a magnetic air cylinder for an internal combustion engine that protects facilities and main equipment to prevent secondary damage by earthquake and vibration.

The vibration resisting magnetic air spring unit according to the present invention is susceptible to twisting of a conventional anti-seismic device using upper, lower, left and right refraction type coil springs, and particularly to a change in shear stress acting in the Z- By solving the problem of reduction of elasticity due to sagging phenomenon and using the elasticity of the air spring of compressed air and the self-repulsive elasticity of permanent magnet as described above, it absorbs vibration and shock well and absorbs and attenuates even irregular vibration To provide a reliable magnetic air spring unit capable of supporting the operation of equipment for the control of main facilities and high safety electrical switchboards.

[TECHNICAL FIELD]

[0001] The present invention relates to a magnetic air spring unit for an internal combustion engine, and more particularly, to a magnetic air spring unit for an internal combustion engine having an anti-seismic performance, a cylindrical air spring unit made of a polyurethane material having excellent elasticity, tensile strength and durability The air cylinders are filled with compressed air. The air spring generates strong magnetic repulsion force in the upper and lower parts of the central central axis, and is generated in the X, Y, and Z directions of the upper, lower, left, And more particularly, to an anti-vibration magnetic air spring unit capable of efficiently absorbing and mitigating a displacement force acting on a vehicle, thereby preventing damage caused by an earthquake or vibration.

In the past, a large number of earthquakes such as the earthquake in Niigata Prefecture in 2005 after the Great Hanshin Earthquake in Japan caused severe social problems and frequent breakdowns due to nuclear power plant accidents and damage to power systems and power supply facilities. In Korea, earthquakes more than 5.0 in size have occurred in Pohang and many social facilities have been damaged and major power facilities have been damaged. So Korea can no longer be a safety zone of earthquake.

Therefore, related industries are responding to earthquake prevention measures for high-pressure water distribution facilities, which have recently taken power from KEPCO and occupy most of the electric facilities used for power distribution. Accordingly, the background of the magnetic air spring unit of the present invention , The electric power distribution board anti-seismic prevention device which is currently being developed and applied is an anti-seismic device using a rigid spring, which induces upward, downward, leftward and rightward refractions to transmit the displacement force generated by the earthquake or vibration to the elastic force In most of the steel springs, a coil spring is applied. The coil spring has a diameter smaller than the diameter of the material steel at both ends, a middle part larger, a pitch at an unequal pitch, a diameter of the coil So that the nonlinear characteristic is exhibited, A spiral coil spring complemented with a point or a composite type spring device combining a nonlinear wire rope and a polyurethane spring is installed in the lower part of the power distribution panel to prevent earthquake or vibration and a structure of a polyurethane material A coil spring is used for catching up and down vibrations acting on the urethane outer cylinder and the central portion, and only the elastic force of the Urethane material is used as a cavity inside the urethane outer cylinder. However, in the present invention, In the case of a twist due to an external force which is a disadvantage of a coil spring used in an anti-seismic device of the present invention, when the magnitude of the applied force is large, the spring is twisted and broken due to shear stress. The original elasticity can not be restored by the deflection phenomenon. In order to effectively and efficiently solve the disadvantages and problems of not being able to prevent the continuous transmitted vibration due to weak vibration damping function, the air spring using the elasticity of the compressed air is used, And has a function of absorbing and attenuating with respect to the displacement force of the direction, and is capable of absorbing a very small vibration to be transmitted, and absorbs the fluctuation of a large load acting on the upper and lower movable force It is possible to lower the natural vibration transmitted to the magnetic air spring by using the strong magnetic repulsive force of the permanent magnet to attenuate the vibration and absorb the small vibration smoothly so as to more effectively and efficiently improve various problems with the existing method. .

In order to effectively and efficiently solve and solve the above-mentioned problems, the vibration-proof magnetic air spring unit according to the present invention is susceptible to the twisting of the conventional system, and particularly to the shear stress variation acting in the Z- It is created to improve the fundamental problem of the change of elastic force. It is necessary to consider the compression force of the magnetic air spring against the displacement force in the up, down, left, right and Z axis direction due to the earthquake or vibration and the support force due to the torsion due to the polyurethane outer tube It is able to absorb, mitigate and attenuate the displacement force by the elastic force using the upper and lower magnetic repulsion unit. And it is possible to use the magnetic air cylinder unit And the size of the magnetic air cylinder unit and the size of the power transmission & It is an object of the present invention to provide an anti-vibration magnetic air cylinder unit which is advantageous in that it can be easily disposed and installed so as to match the structure of the air cylinder.

In order to achieve the above-mentioned object, the vibration-proof magnetic air cylinder unit according to the present invention comprises a magnetic air spring outer cylinder made of polyurethane having excellent elastic repulsive force and a magnetic air spring outer cylinder, The interior of the sealed and sealed magnetic air spring unit fully engaged with the spring bottom plate is filled with compressed air at a calculated pressure value sufficient to support the weight of equipment and equipment to be supported, An upper magnetic reluctance unit supporter and a lower magnetism repulsion unit supporter having an upper magnetic repulsion unit and a lower magnetic repulsion unit for using the repulsive force of the neodymium permanent magnet as an elastic force, And the upper magnetic reluctance unit support And the lower magnetic reluctance unit support base is completely engaged with the magnetic air spring upper plate and the magnetic air spring lower plate within the magnetic air spring and the magnetic spring unit is easily installed in equipments requiring protection of the power and anti- And a magnetic air spring lower engaging groove.

Wherein the magnetic air spring unit is integrally formed with the above-mentioned adjunct units and the upper and lower plates, and calculates a load (weight) and expected displacement force to be supported or supported by the magnetic air spring unit, The amount and pressure of the compressed air to be filled in the spring unit is sufficiently determined and applicable.

The magnetic anti-vibration air spring unit according to the present invention fundamentally solves the deflection phenomenon due to the influence of the change of the shearing stress and the torsion coefficient, which is a disadvantage of the coil spring, and also the elastic force of the compressed air and the permanent magnet Using the self-repulsive elastic force and the polyurethane air spring which is excellent in the tensile force, the compressive force and the absorbing power against the horizontal displacement force, the elastic function is excellent and the generation of the minute vibration due to the buffering action Which is very small, effectively absorbs and mitigates large and small displacements caused by earthquakes or large vibrations, thereby providing an inertial magnetic air spring for operating stable equipment and equipment.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
1 is an exploded perspective view of an anti-vibration magnetic air spring unit according to the present invention.
Fig. 2 is a front view of a switchboard to which a magnetic air spring according to an exemplary embodiment of the present invention is applied.
3 is a side view of a switchboard to which an anti-vibration magnetic spring according to an exemplary embodiment of the present invention is applied.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a cross-sectional view of a magnetic air spring unit for vibration protection according to the present invention.

As shown in FIG. 1, the magnetic air spring units 100a and 100b according to the present invention are designed to be able to move in accordance with the load to be supported by the magnetic air spring and the expected magnitude of the displacement force generated by the earthquake or vibration The pressure of the compressed air to be filled in the magnetic air spring unit is determined.

The magnetic air spring units 100a and 100b are formed of a magnetic air spring outer cylinder 110 made of polyurethane and formed in a cylindrical shape having a convex center at the center thereof and the magnetic air spring outer cylinder 110 are made of a rectangular or circular magnetic air spring The air spring unit 100a and 100b are structurally completely joined and sealed with the upper plate 120 and the magnetic air spring lower plate 130 so that the compressed air filling the inside of the magnetic air spring units 100a and 100b does not leak out, Structure.

In order to efficiently absorb and mitigate the temporal increase and variation of the load caused by the vertical displacement force acting vertically on the central portion of the magnetic air spring units 100a and 100b, the elastic force is used by using the mutual repulsive force of the permanent magnets. (N pole to N pole or N pole) of the Neodymium permanent magnet having excellent magnetic repulsive force, the upper magnetic reluctance unit (140) and the lower magnetic reluctance unit (150) S pole and S pole) are opposed to each other and the upper magnetic reluctance unit and the lower magnetic reluctance unit are prevented from being damaged and structurally stabilized, the upper magnetic reluctance unit protective molding body 142 and the lower magnetic reluctance unit protective mold And is installed integrally in the upper magnetism repulsion unit support 141 and the lower magnetism repulsion unit support 151.

The pressure and air amount of the compressed air to be filled in the magnetic air spring units 100a and 100b are determined according to the weight of the equipment or equipment applied to the magnetic air spring unit for vibration and the magnitude of the expected displacement force And a compressed air inlet 160 for injecting compressed air at a determined pressure is provided at one side of the magnetic air spring outer cylinder 110 and a rubber flat for preventing backflow of compressed air is provided inside the compressed air inlet 160 (160a) for preventing the compressed air filled with the predetermined pressure from escaping to the outside.

As shown in FIG. 1, the magnetic air spring units 100a and 100b are installed to support the equipment or equipment and facilitate the coupling. The magnetic air spring upper plate 120 is fastened to the above- And a magnetic air spring upper coupling part 170 in which a bolt for the magnetic air spring upper coupling part 170 is inserted into the magnetic air spring upper plate at a predetermined depth and is completely engaged with the plate. It is possible to provide a plurality of magnetic air spring upper fastening portions 170, which can be implemented in different forms, and that the magnetic air spring units 100a and 100b for dustproofing are provided to support equipment or equipment The magnetic air spring units 100a and 100b are provided with bolts and nuts, ) To be securely connected to this equipment or facility.

FIG. 2 is a front view of a power switchboard according to an exemplary embodiment of the present invention. Referring to FIG. 2, in the case of an electric power transmission and distribution system, A plurality of electrical equipment such as a transformer, a high-voltage breaker, a high-voltage vacuum electromagnetic contactor, a circuit breaker for a wiring breaker, a current transformer and a cable for connection are installed in the cabinet 210, (Width: 1200 mm x depth: 2000 mm x height: 2300 mm), and the overall weight of the electric power distribution board can not be specified, but is usually 1,000 kg And weighs about 500kg for the enclosure (210). Often it is.

When the steel frames of the power transmission and reception cabinet 210 and the inner cubicle 220 are welded to each other and tightly fastened with bolts and nuts to generate a displacement force externally applied, the electric power transmission and distribution panel is housed in the interior cubicle 220 The motor and the pump which are operated by receiving electricity from the electric power supply and distribution due to the problem of supply of stable electricity due to damage or malfunction of the equipment or equipment due to vibration or heavy vibration of the installed electric equipment and electric equipment It may cause severe operational difficulties that can not supply electricity to the external electrical equipment that controls and operates the external mechanical equipment, lighting, electric heat, general electric equipment to control the load and operate it. It is possible to cause a problem at a time.

In the case of an indoor electrical switchboard, the electrical switchboard installed in a self-supporting manner to support the floor of the electric room and installed outdoors is installed on a base concrete made of a certain size. The displacement force acting in the X, Y, and Z axis directions is directly transmitted from the switchgear enclosure 210 to the internal cubicle 220. As shown in FIG. 2, the displacement force is efficiently absorbed and relaxed A plurality of the magnetic air spring units 100a and 100b may be disposed between the switchgear base 230 and the internal cubicle 220. For example, Assuming that the weight (load, weight) that one can support is 200 kg, the weight of the interior and exterior cubicle 220 Assuming that the total weight of the weight of the electric devices, the equipment, and the cables attached to the cabinet 220 is 1,000 kg, the vibration-resistant magnetic air spring units 100a and 100b are installed in consideration of the margin May be preferable.

The magnetic air spring units 100a and 100b are coupled to the lower portion of the interior and exterior cubicle 220 by using the magnetic air spring upper fastening portions 170 of the internal vibration magnetic air spring units 100a and 100b, 100b by the bolts and nuts using the magnetic air spring lower coupling grooves 180 of the upper and lower arms 100a and 100b so that they act in the directions of the X, Y, and Z axes generated by the earthquake or the large vibration In the case of a large displacement force in which the magnetic air spring unit 110 of the magnetic air spring units 100a and 100b absorbs the displacement force and acts vertically on the magnetic air spring unit, the upper magnetic repulsion unit 140, And is absorbed and relaxed by the magnetic repulsive force possessed by the repulsion unit 150.

FIG. 3 is a side view of a switchboard to which an anti-vibration magnetic spring according to an exemplary embodiment of the present invention is applied. As shown in the drawing, the displacement force acting in the X, Y, The air spring units 100a and 100b are connected to the interior of the switchgear housing 210 and the inside of the switchboard inner cubicle 220 in order to absorb and alleviate the vibration of the switchgear housing 210. [ A plurality of magnetic air springs (100a, 100b) are installed between the inner and outer sub cubes (220, 220), and the magnetic air spring upper coupling portions (170) By combining the bolts and nuts with the transmission / reception board base 230 using the magnetic air spring lower coupling grooves 180 of the units 100a and 100b, Vibration can be efficiently and effectively solved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention. It is natural to belong to the scope.

100a, 100b: magnetic air spring unit
110: Magnetic air spring outer cylinder 120: Magnetic air spring upper plate
130: magnetic air spring lower plate 140: upper magnetic repulsion unit
141: upper magnetic reluctance unit support bracket 142: upper magnetic reluctance unit protective molding body
150: lower magnetic repulsion unit 151: lower magnetic repulsion unit support
152: Protective molding body for lower magnetic reluctance unit 160: Compressed air inlet
160a: rubber flat for preventing backflow of compressed air 170: upper portion of magnetic air spring
180: Magnetic air spring lower coupling groove 210:
220: Switchboard internal cubicle 230: Switchboard base

Claims (2)

A magnetic air spring outer cylinder 110 formed of polyurethane and formed in a cylindrical shape having a convex shape at the center, a magnetic air spring upper plate 120 coupled to be completely sealed to the upper and lower portions of the magnetic air spring outer cylinder 110, In the magnetic air spring units 110a and 110b including the magnetic air spring lower plate 130, the inside of the magnetic air spring units 110a and 110b is filled with compressed air,
An upper magnetic reluctance unit support 141 and a lower magnetic reluctance unit support 151 having an upper magnetic reluctance unit 140 and a lower magnetic reluctance unit 150 are formed at the central center of the magnetic air spring units 100a and 100b Respectively,
The upper magnetic reluctance unit 140 and the lower magnetic relubrication unit 150 are accommodated in the upper magnetic reluctance unit protective molding body 142 and the lower magnetic reluctance unit protective molding body 152, Is provided in the lower magnetic reluctance unit support 151,
A compressed air inlet 160 is formed at one side of the magnetic air spring outer cylinder 110,
A rubber flat 160a for preventing backflow of compressed air is provided inside the compressed air inlet 160,
The magnetic air spring upper plate 120 is provided with a magnetic air spring upper coupling part 170,
Wherein the magnetic air spring lower plate (130) is provided with a magnetic air spring lower coupling groove (180) so as to be fixed by bolts and nuts. The method according to claim 1,
Wherein the upper magnetic reluctance unit (140) and the lower magnetic reluctance unit (150) are constructed so that the same poles face each other by using neodymium permanent magnets.

Images