JP5478279B2 - Anti-vibration table and power generation system - Google Patents

Description

  The present invention relates to a vibration isolator and a power generation system.

  2. Description of the Related Art In recent years, power generation apparatuses that generate electric power by converting vibration energy of vibration generated in a structure such as a building or the ground into electric energy have been proposed. Among the vibrations generated in structures such as buildings and the ground, seismic motion has a large vibration amplitude, and thus a large amount of power can be obtained. However, since the frequency of occurrence is low and the duration of vibration is short, a large amount of power generation cannot be expected.

  Therefore, the vibration energy of various vibrations such as walking vibrations caused by walking of people, traffic vibrations caused by running of trains and automobiles, mechanical vibrations due to operation of equipment, and vibrations generated when operating electronic devices are converted into electrical energy. A power generation device that generates electric power has been proposed (see, for example, Patent Document 1).

  In addition, by installing a moving coil in the propagation path of noise and vibration, resonating at a specific frequency and converting sound and vibration energy into electric energy and outputting it, the noise and vibration energy can be efficiently converted into electric energy. In addition, a sound absorbing device that reduces noise and vibration propagation has been proposed (see, for example, Patent Document 2).

  Further, a vibration isolator that reduces propagation of vibrations such as power equipment and air conditioning equipment to the floor is known (for example, see Patent Document 3).

Japanese Patent Laid-Open No. 10-66323 JP 2005-57820 A JP 2001-304335 A

  An object of the present invention is to reduce vibration propagation by effectively converting vibration energy into electric energy and effectively converting it into electric energy.

The invention of claim 1 is provided on the placement portion via a vibration isolating member, and is provided with a pedestal portion on which the vibration source is placed, and is slidably provided on the pedestal portion. A vibration member that vibrates with an amplified amplitude, and a power generation unit that converts vibration energy of the vibration member into electrical energy. The power generation unit includes a first weight swingably provided on the vibration member. A vibration amplifying structure comprising: a first vibration amplifying unit having one support member; and a second vibration amplifying unit having a second support member having a second weight swingably provided on the first weight; and the second weight. A first member fixed to the first member and a second member provided so as to be movable relative to the first member, wherein power is generated by relative movement between the first member and the second member. And .

  In the first aspect of the present invention, the vibration source is placed on the gantry provided on the placement part via the vibration isolation member. The gantry unit vibrates due to the mounted vibration source. The vibration member provided slidably on the gantry unit is set so that the natural frequency matches or substantially coincides with the vibration frequency of the gantry unit, so that the vibration member resonates with the gantry unit, and the vibration amplitude increases. Amplified.

  Then, the vibration energy of the vibration member is converted into electric energy by the power generation unit.

  As described above, since the vibration member resonates with the gantry, the amplitude is amplified, so that the vibration energy of the gantry is effectively converted into electric energy.

  In other words, the conversion efficiency for converting the vibration energy of the vibration of the gantry to electric energy is improved as compared with the configuration without the vibration member, so that more electric energy can be obtained from the vibration energy.

  Further, the vibration of the gantry is reduced by the amount of energy converted from the vibration energy to electric energy. Therefore, the vibration energy of the gantry is effectively reduced by effectively converting the vibration energy of the gantry into electric energy. And the vibration propagated to mounting parts, such as a floor, is reduced because the vibration of a mount part reduces. That is, the vibration reduction effect of the vibration isolator is improved.

The vibrating member resonates with the gantry and vibrates. When the vibration member vibrates , the first weight that is swingably provided on the vibration member vibrates, and the second weight that is swingably provided on the first weight vibrates and is fixed to the second weight . The member vibrates. When the first member vibrates, the first member and the second member move relative to generate electric power. That is, the vibration energy of the vibration member of the gantry is converted into electric energy.

Here, the vibration of the first member is amplified with respect to the vibration of the vibration member by the vibration amplification structure. That is, the amplitude of the first and second weights is amplified by the resonance of the natural frequency of the first weight and the second weight provided on the vibration member so as to be able to swing to coincide with or substantially coincide with the vibration frequency of the vibration member. Is done. Therefore. The amplitude of the vibration of the first member is larger than that of the configuration having no vibration amplification structure.

  In addition, when the power generation means generates electric power, a resistance force that suppresses vibration of the first member (for example, in the case where electric power is generated from the coil by electromagnetic induction using the first member as a permanent magnet and the second member as a coil) When the resistance force that suppresses the vibration of the permanent magnet by the generated back electromotive force acts on the first member from the second member, the vibration of the first member is reduced.

  However, the inertial force of the first member increases with the weight of the weight. Therefore, the vibration suppression effect by the resistance force which acts on the first member from the second member is reduced. That is, a reduction in amplification magnification by which the amplitude of the first member is amplified with respect to the amplitude of the vibration member by the vibration amplification structure is reduced.

Thus, the amplified amplitude of the vibration of the first section member by the vibration amplifying structure, since and reduction of the amplification factor due to the resistance force is reduced, the vibration energy of the vibration member is converted into effective electrical energy .

  In other words, the conversion efficiency for converting the vibration energy generated in the vibration member into electric energy is improved as compared with the configuration without the vibration amplification structure, so that more electric energy can be obtained from the vibration energy.

  That is, the power generation unit generates power more effectively than a configuration where the power generation unit does not have a vibration amplification structure.

  Therefore, since the vibration member resonates with the gantry, the vibration amplitude of the vibration member is amplified, and further, the amplitude is amplified and effectively generated by the vibration amplification structure of the power generation unit. Is more effectively converted into electrical energy.

  In addition, since the vibration energy of the gantry part is converted into electric energy more effectively in this way, the vibration of the gantry part is further reduced, and as a result, the vibration transmitted to the placement part such as the floor is further reduced. Is done. That is, the vibration reduction effect is further improved.

  Moreover, since the mass of the part (weight + first member) that is swayed by the weight is increased, the vibration reduction effect is further improved.

According to a second aspect of the present invention, a plurality of the vibration members are provided, and at least one of the vibration members is set to have a different natural frequency from the other vibration members.

In the invention of claim 2 , at least one of the vibration members is set to have a different natural frequency from the other vibration members. That is, a vibration member having a natural vibration different from that of the other vibration member resonates at a frequency different from the frequency of the gantry unit in which the other vibration member resonates.

  Therefore, when the dominant frequency of the gantry is widely distributed (when the frequency has a plurality of peaks), the natural frequency of the vibration member is matched or substantially matched with the plurality of frequencies, thereby generating power more effectively. Is done.

  In addition, since vibration energy is effectively converted into electric energy with a wide frequency of the gantry, vibration transmitted to the placement part such as a floor is further reduced. That is, the vibration reduction effect is further improved.

According to a third aspect of the present invention, the vibration member includes a first vibration member provided slidably on the gantry, and one or a plurality of second vibration members provided slidably on the first member. And is composed of.

In the third aspect of the present invention, one or more second vibrating members can be further slidably provided to the first vibrating member provided slidably on the gantry. A mass system is constructed.

  Therefore, the n-th order natural frequency that is the same as the number of mass points can be generated in the vibration member. Therefore, when the predominant frequency of the gantry part is widely distributed, it is possible to efficiently generate electric power.

According to a fourth aspect of the present invention, the vibration member is joined to the gantry part via an elastic member.

According to the fourth aspect of the present invention, a vibration system of a spring mass having a mass of the elastic member and the vibration member is configured, and the amplitude of the vibration member is amplified by resonating the vibration member with the gantry. Therefore, power is effectively generated.

According to a fifth aspect of the present invention, the gantry has a frame portion configured in a frame shape in plan view, and the vibration member has a beam shape in which the longitudinal direction is arranged horizontally or substantially horizontally, and has one end or Both ends are slidably joined to the frame portion.

In the invention of claim 5 , the frame part of the gantry part has a larger amplitude than, for example, the board-like gantry part. Therefore, the vibration member is greatly oscillated by joining one end or both ends of the beam-like vibration member to the frame portion so as to be able to swing.

  Further, the vibration member is further greatly amplified by joining the end of the vibration member so as to be able to swing in the vibration mode shape antinode (amplitude antinode) or the vicinity of the antinode in the frame portion.

According to a sixth aspect of the present invention, power is generated by placing a vibration source on the gantry of the vibration isolator according to any one of the first to fifth aspects.

In the invention of claim 6 , since the vibration energy of the vibration source is effectively converted into electric energy, large electric power can be obtained.

  According to the first aspect of the present invention, vibration energy can be effectively converted into electric energy, and vibration propagated from the gantry to the placement portion can be reduced.

According to the second aspect of the present invention, vibration energy can be effectively converted into electric energy over a wide range of vibration frequencies of the gantry, and vibration transmitted from the gantry to the placement part is further reduced. be able to.

According to the third aspect of the present invention, when the predominant frequency of the gantry is widely distributed, it is possible to efficiently generate electric power.

According to the invention described in claim 4 , since the amplitude of the vibrating member is amplified, it is possible to generate electric power effectively.

According to the fifth aspect of the present invention, the vibration member can be greatly amplified.

According to the sixth aspect of the present invention, large electric power can be obtained by effectively converting the vibration energy of the vibration source into electric energy.

It is a perspective view which shows the electric power generation system which mounted the outdoor unit of the large sized air conditioner on the vibration isolator which concerns on 1st embodiment of this invention. (A) is a perspective view which shows the vibration isolator which concerns on 1st embodiment of this invention, (B) is a vertical sectional view along the AA line of (A). It is a perspective view which shows typically the state which the side part of the mount part of the vibration isolator shown in FIG. 2 vibrated. It is a graph which shows an example of the vibration measurement result of the mount part of the vibration isolator which concerns on 1st embodiment of this invention shown in FIG. (A) is a front view which shows typically the junction part of the side part of the mount part of the vibration isolator which concerns on 1st embodiment of this invention shown in FIG. 2, and a beam member, (B) is 1st. It is a front view which shows typically the junction site | part of the 1st modification of embodiment, (C) is a front view which shows typically the connection site | part of the 2nd modification of 1st embodiment. It is a graph which shows an example of the vibration measurement result of the mount part of the vibration isolator which concerns on 1st embodiment of this invention shown in FIG. It is a perspective view which shows the vibration isolator of the 3rd modification of 1st embodiment of this invention. It is a perspective view which shows the vibration isolator of the 4th modification of 1st embodiment of this invention. It is a perspective view which shows the vibration isolator which concerns on 2nd embodiment of this invention. It is a top view which shows the vibration isolator which concerns on 2nd embodiment of this invention shown in FIG. (A) is an AA arrow view of FIG. 10, (B) is a BB arrow view of (A). It is a top view which shows the vibration isolator of the 1st modification of 2nd embodiment of this invention. It is a top view which shows the vibration isolator of the 2nd modification of 2nd embodiment of this invention. It is a top view which shows the vibration isolator which concerns on 3rd embodiment of this invention. It is a perspective view which shows the vibration isolator which concerns on 4th embodiment of this invention. (A) is sectional drawing along the vibration direction which shows typically the electric power generation part provided in the vibration isolator of 1st embodiment, (B) is sectional drawing which shows an example of a guide mechanism. (A) is a schematic diagram which shows typically the 1st variation of the electric power generation part provided in the vibration isolator of 1st embodiment shown in FIG. 16, (b) is a schematic diagram which shows a 2nd variation typically. (C) is a schematic diagram schematically showing a third variation. It is a front view of the partial cross section which shows the 1st variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view of the partial cross section which shows the 2nd variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view of the partial cross section which shows the 3rd variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view of the partial cross section which shows the 4th variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view of the partial cross section which shows the 5th variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view of the partial cross section which shows the 6th variation of the electric power generation part of the vibration isolator of 2nd embodiment. It is a front view which shows the 7th variation of the electric power generation part of the vibration isolator of 2nd embodiment. (A) is a perspective view of a partially cutaway cross section showing a seventh variation of the power generation unit of the vibration isolator of the second embodiment, and (B) is a view taken along the line BB in (A). It is a perspective view which shows the 8th variation of the electric power generation part of the vibration isolator of 2nd embodiment. FIG. 27 is a vertical sectional view taken along line AA in FIG. 26. It is a top view which shows the 6th variation of the electric power generation part of the vibration isolator of 2nd embodiment.

<First embodiment>
1-5, it is installed on concrete floor slabs, such as a rooftop as an example of a mounting part, and is an example of a vibration source on the vibration isolator which concerns on 1st embodiment of this invention. A power generation system that mounts an outdoor unit of a large-scale air conditioner for buildings (commercial air conditioner) and reduces vibration transmitted to the floor slab and converts the vibration energy of the outdoor unit into electric energy to generate electric power will be described. .

  As shown in FIG. 1, the power generation system 5 of the present embodiment includes a vibration isolator 100 placed on a floor slab 12 and a vibration source outdoor unit 10 supported by the vibration isolator 100. doing.

  As shown in FIGS. 1 and 2, the anti-vibration table 100 includes a pair of square frame-like base portions 110 and a pedestal portion 120 that form a pair arranged in the vertical direction with a space therebetween. The base part 110 and the gantry part 120 have substantially the same shape.

As shown in FIG. 2A, the base 110 is composed of elongated plate-like sides 112, 114, 116, and 118 that are arranged in the vertical direction in the thickness direction. The gantry 120 is composed of elongated plate-like sides 122, 124, 126, and 128 whose thickness direction is arranged in the vertical direction.
And the corner | angular part of the base part 110 and the mount part 120 is connected by the connection mechanism part 102 in the up-down direction.

  As shown in FIG. 2B, the coupling mechanism portion 102 includes a shaft portion 104 and a disk-shaped stop portion 106 joined to the end portion of the shaft portion 104. The shaft portion 104 of the coupling mechanism portion 102 is fixed to the upper surface of the corner portion of the base portion 110. Further, the shaft portion 104 is inserted into a hole 121 formed in a corner portion of the gantry portion 120, and a stop portion 106 is joined to an end portion protruding from the gantry portion 120. Therefore, the connection mechanism part 102 connects the base part 120 arrange | positioned at the upper side with respect to the base part 110 arrange | positioned at the lower side so that a movement to a horizontal direction is controlled so that a movement to an up-down direction is possible.

  As shown in FIG. 1 and FIG. 2A, a vibration isolating member 108 is sandwiched between the base part 110 and the gantry part 120. In the present embodiment, the vibration isolating member 108 is a cylindrical elastic rubber. However, the vibration isolating member 108 is not limited to elastic rubber. For example, a compression coil spring or a leaf spring may be used. Alternatively, an air spring may be used. Furthermore, you may provide these multiple types of vibration isolator. In short, any member can be used as long as it can prevent or suppress the transmission of vibration from the gantry to the placement part such as the floor.

  As shown in FIG. 1, the outdoor unit 10 is placed on the slab 12 of the anti-vibration table 100 with the base 110 of the anti-vibration table 100 facing down.

  As shown in FIG. 2 (A), a plate-like shape having a long and narrow rectangular shape in a plan view is provided between the long side portion 122 and the side portion 126 that are arranged to face each other in the horizontal direction in the gantry 120. The beam member 150 is stretched over. The end portions 150 </ b> A and 150 </ b> B of the beam member 150 are joined to the side portion 122 and the side portion 124.

  In the present embodiment, as shown in FIG. 5A, the end 150A (end 150B) of the plate-like beam member 150 is formed on the side 126 (side 122) of the gantry 120. The beam member 150 is joined to the gantry 120 by being fitted into the engagement hole 123.

  In FIG. 5A, the joint portion between the side portion 126 of the gantry portion 120 and the end portion 150 </ b> A of the beam member 150 is illustrated. The same applies to the bonding site.

Further, the plate-like beam member 150 has an elongated rectangular shape in plan view, and is elastically deformed. Therefore, the beam member 150 swings in the vertical direction with respect to the side portions 122 and 126.
A power generation unit 200 is provided on the lower surface of the central portion of the beam member 150 in the longitudinal direction.

Next, the power generation unit 200 will be described.
The power generation unit 200 generates power when it vibrates in a predetermined vibration direction. Therefore, when the power generation unit 200 is described, the power generation unit 200 is illustrated and described based on the vibration direction in which power is generated.

  In addition, when using the top and bottom, the ceiling, the bottom, etc. when describing the power generation unit 200, the description is made only on the basis of the vertical direction in each figure for the sake of convenience, which means that it is always installed in this direction. Not. In the present embodiment, the vibration direction G is the vertical direction.

  As shown in FIG. 16A, the power generation unit 200 has a cylindrical housing 50, and the weight 62 is moved in the vibration direction G by the coil spring 20 as a support member on the ceiling 50 </ b> A of the housing 50. And can be swung. A magnet 38 as a first member is fixed to the lower surface of the weight 62.

  A coil 40 as a second member is fixed to the cylindrical portion 50 </ b> B of the housing 50, and a magnet 38 that is fixed to the lower surface of the weight 62 inside the coil 40 is disposed. That is, the magnet 38 is provided so as to be movable in the vibration direction G in the coil 40.

  Then, when the magnet 38 moves in the coil 40 in the vibration direction G (axial direction), electric power is generated by electromagnetic induction.

  Electric power is taken out from the electric wires 40 </ b> A and 40 </ b> B connected to the coil 40 and wired outside the housing 50. In FIG. 1, illustration of the electric wires 40A and 40B extending from the power generation unit 200 is omitted.

  The tip of the electric wires 40A and 40B may be connected as a power source to a device driven by electricity, or connected to a storage battery (secondary battery) to store electricity, and the device is driven by the stored electricity. Also good. Moreover, you may be connected to the apparatus and the storage battery through the circuit.

  Here, when the lower side in FIG. 16A is in the direction of gravity, the coil spring 20 has a configuration in which a weight 62 and a magnet 38 are suspended (in this case, the coil spring 20 becomes a tension coil spring). However, it is not limited to this direction.

  For example, when the upper side in FIG. 16A is in the direction of gravity (that is, upside down), the coil spring 20 has a configuration in which a weight 62 and a magnet 38 are placed (in this case, the coil spring 20 becomes a compression coil spring).

  Further, a guide mechanism (not shown) may be provided so that the weight 62 and the magnet 38 can move smoothly in the coil 40 even if the vibration direction G is horizontal. The guide mechanism may be any mechanism.

  For example, as in the guide mechanism 61 shown in FIG. 16B, a mechanism in which a through hole 63 is formed in the shaft center of the weight 62 and the magnet 38 and a shaft 65 fixed to the housing 50 is passed through the through hole 63. It may be.

Next, functions and effects of the present embodiment will be described.
The outdoor unit 10 placed on the gantry 120 of the vibration isolator 100 shown in FIG. 1 vibrates. The gantry 120 is vibrated by the vibration of the outdoor unit 10. However, the vibration transmitted to the pedestal 110 by the vibration isolation member 108 is reduced, and as a result, the vibration transmitted to the floor slab 12 is reduced.

  Note that the gantry 120 is coupled to the pedestal 110 so as to be movable in the vertical direction by a coupling mechanism unit 102 (see FIG. 2B). Therefore, the gantry 120 mainly vibrates in the vertical direction (see FIG. 3, details of FIG. 3 will be described later).

  The beam member 150 provided on the gantry unit 120 so as to be able to swing is set so that the natural frequency matches or substantially matches the frequency of the gantry unit 120, so that the beam member 150 resonates with the gantry unit 120. The amplitude of vibration is amplified. The resonance will be described later.

  Due to the resonance, the beam member 150 mainly vibrates in the vertical direction. Then, the vibration energy of the beam member 150 is converted into electric energy by the power generation unit 200 (see FIG. 16A) arranged with the vertical direction as the vibration direction G. That is, the vibration energy of the outdoor unit 10 is converted into electric energy by the power generation unit 200 to generate power. The power generation in the power generation unit 200 will be described later.

  Thus, since the amplitude is amplified by the beam member 150 resonating with the gantry 120, the vibration energy of the gantry 120 (the outdoor unit 10) is effectively converted into electrical energy.

  In other words, since the conversion efficiency for converting vibration energy into electric energy is improved as compared with a configuration in which the power generation unit 200 is directly joined to the gantry 120 or the outdoor unit 10, more electric energy is converted from vibration energy. can get.

  In addition, the vibration of the gantry 120 is reduced by the amount of energy converted from vibration energy to electrical energy (a vibration control effect is exhibited). Therefore, the vibration energy of the gantry 120 is effectively reduced by effectively converting the vibration energy of the gantry 120 into electric energy. And the vibration transmitted to the base part 110, ie, the floor slab 12, is reduced because the vibration of the gantry part 120 is reduced. That is, the vibration reduction effect of the vibration isolator 100 is improved.

  Here, as shown in FIG. 3, in the case of the present embodiment, the central portion in the longitudinal direction of the side portion 122 and the side portion 126 vibrates as an antinode of the vibration mode shape. That is, the central portion in the longitudinal direction of the side portions 122 and 126 has the largest amplitude. Therefore, the amplitude of the beam member 150 is increased by joining the end portions 150A and 150B of the beam member 150 to the center portion so as to be able to move. In FIG. 3, the vibrations (deformations) of the side portions 122 and 126 are shown larger than the actual size for easy understanding. Actual vibration (deformation) is very small.

  The antinodes of the amplitudes of the side portions 122 and 126 may be other than the central portion. In this case, it is desirable to join the end portions 150 </ b> A and 150 </ b> B of the beam member 150 to a portion of the side portions 122 and 126 that has an amplitude other than the central portion.

FIG. 4 is a graph of the vibration measurement result of the gantry 120 of the vibration isolator 100 in a state where the outdoor unit 10 is placed. In this graph, the horizontal axis indicates the frequency, and the vertical axis indicates the acceleration spectrum. As can be seen from this graph, the peak value P1 is shown at about 48 Hz. Therefore, the specifications of the beam member 150 are set so that the beam member 150 resonates at the peak value P1 of about 48 Hz. The specifications are, for example, the thickness, mass, spring constant, and the like of the beam member 150, and are set so that they resonate.
In the present embodiment, the main factor having the peak value P1 at about 48 Hz is the rotational speed of the rotating body (fan) provided in the outdoor unit 10 (see FIG. 1) and the blades constituting the rotating body. This is considered to be the vibration frequency (= 48 Hz) of the outdoor unit 10 due to the number of

Next, power generation in the power generation unit 200 will be described.
As shown in FIG. 16A, when the power generation unit 200 vibrates in the vibration direction G, the weight 62 provided to be swingable by the coil spring 20 vibrates in the vibration direction G. The magnet 38 fixed to the weight 62 vibrates integrally with the weight 62 in the vibration direction G.

  When the magnet 38 vibrates, the magnet 38 moves in the vibration direction G with respect to the coil 40, and electric power is generated by the principle of electromagnetic induction. That is, vibration energy is converted into electrical energy.

  Here, in general, the power generation amount V by electromagnetic induction is represented by the Faraday electromagnetic induction shown in the equation (1), where N is the number of turns of the coil, and ΔΦ / Δt is the amount of change in magnetic flux density passing through the coil in a minute time Δt. It is determined by the law.

  It can be seen from equation (1) that the power generation amount V is proportional to the amount of change ΔΦ / Δt in magnetic flux density per unit time. The magnetic flux density change amount ΔΦ / Δt increases as the magnet vibration amplitude (the relative movement amount between the magnet and the coil) increases. Therefore, the power generation amount increases as the magnet vibration amplitude increases.

  From this principle, it can be seen that if the amplitude of the magnet 38 of the power generation unit 200 can be increased, a large amount of power can be generated.

  In the present embodiment, the weight of the weight 62 and the length of the coil spring 20 are set so that the natural frequency of the weight 62 and the magnet 38 matches or substantially matches the frequency of the beam member 150 and the weight 62 and the magnet 38 resonate. By setting the spring constant, the amplitudes of the weight 62 and the magnet 38 are amplified. That is, the amplitude of vibration of the weight 62 and the magnet 38 is increased.

  On the other hand, when the magnet 38 moves in the vibration direction G (axial direction) with respect to the coil 40 and electric power is generated, the resistance force that suppresses the vibration of the magnet 38 by the counter electromotive force generated in the coil 40 is applied from the coil 40 to the magnet. 38, and the amplitude of vibration of the magnet 38 is reduced.

  However, the inertia force of the magnet 38 increases with the weight of the weight 62. Therefore, the vibration suppression effect by the resistance force which acts on the magnet from the coil 40 is reduced. That is, a decrease in amplification factor by which the amplitude of the magnet 38 due to resonance is amplified is reduced.

  Thus, the amplitude of the vibration of the magnet 38 is amplified, and the decrease in amplification magnification due to the resistance force is reduced, so that the moving amount (amplitude) of the magnet 38 moving in the coil 40 increases.

  As the movement amount of the magnet 38 increases, the power generation amount increases as described using the equation (1). In other words, the vibration energy of the gantry 120 is effectively converted into electric energy.

  As described above, the amplitude is amplified by the beam member 150 resonating with the gantry 120, and further, the amplitude is amplified by the vibration amplification structure of the power generation unit 200, so that the power is effectively generated. The vibration energy of the part 120) is effectively converted into electrical energy.

  Further, since the vibration energy of the gantry 120 is effectively converted into electric energy in this way, the vibration of the gantry 120 is reduced, and as a result, the vibration transmitted to the floor slab 12 is reduced. That is, the vibration reduction effect of the vibration isolator 100 is improved.

<Modification of First Embodiment>
Next, a modification of the first embodiment will be described.

"First variation"
As shown in FIG. 5B, in the first modification, the long side 126 and side 122 (see FIG. 2A) of the gantry 120 and the end 150A and end of the beam member 150 are used. 150B (refer FIG. 2) is joined via the metal flat plate 152 which carries out spring deformation.

  One end 152A of the flat plate 152 is fitted into the side 126 (side 122) of the gantry 120, and the other end 152B is fitted into the end 150A (150B) of the beam member 150. In FIG. 5B, the joint portion between the side portion 126 of the gantry portion 120 and the end portion 150A of the beam member 150 is illustrated, but the side portion 122 of the gantry portion 120 and the end portion 150B of the beam member 150 are illustrated. This is the same for the bonding part.

The operation and effect of the first modification will be described.
In this way, the side portions 122 and 126 of the gantry portion 120 and the end portions 150A and 150B of the beam member 150 are slidably joined via the flat plate 152 so as to be directly joined as shown in FIG. Compared to the above, the beam member 150 has a structure that easily swings (vibrates), that is, a structure that easily resonates. Therefore, the amplitude of the beam member 150 increases, and as a result, the amount of power generation increases.

"Second modification"
As shown in FIG. 5C, in the second modification, the long side 126 and side 122 (see FIG. 2A) of the gantry 120 and the end 150A and the end of the beam member 150 are used. 150B (see FIG. 2) is joined via a flat plate 152.

  The other end 152B of the flat plate 152 is fitted into the end 150A (end 150B) of the beam member 150. One end 152 </ b> A of the flat plate 152 is fixed to a pedestal portion 154 provided on a side portion 126 (side portion 122) of the pedestal portion 120 by a bolt 156 and a nut 157.

The operation and effect of the second modification will be described.
Similarly to the first modified example, the second modified example joins the side portions 122 and 126 of the gantry unit 120 and the end portions 150A and 150B of the beam member 150 through the flat plate 152 so as to be able to swing. Compared to the structure of direct joining as in (A), the beam member 150 has a structure that is easy to swing (vibrate). Therefore, the amplitude of the beam member 150 increases, and as a result, the amount of power generation increases.

  Furthermore, since the base part 154 provided on the side part 126 (side part 122) of the gantry part 120 is fixed by the bolt 156 and the nut 157, the gantry part 120 and the beam member 150 are easily joined. Further, the beam member 150 can be easily replaced. For example, when the peak value P1 (see FIG. 4) differs depending on the type of the outdoor unit 10 of the vibration source, it is preferable to replace the beam member 150 with the natural frequency that matches the peak value P1.

  Here, there are cases where the dominant frequency of the gantry 120 is widely distributed, that is, the frequency has a plurality of peaks. And it can be made to generate | occur | produce more effectively by making the natural frequency of the beam member 150 correspond or substantially coincide with each peak of a plurality of frequencies.

  Therefore, a configuration in which a plurality of beam members are provided as a modified example, and the natural vibration of each beam member is changed to resonate at a plurality of frequency peaks will be described.

  In the following modification, as shown in FIG. 6, the gantry 120 has peaks at three frequencies of about 31 Hz (peak value P2), about 48 Hz (peak value P1), and about 61 Hz (peak value P3). An example will be described.

`` Third modification ''
In the third modified example, as shown in FIG. 7, three beam members 150, 151, and 153 are joined to the side part 122 and the side part 126 of the gantry part 120 and are spanned. In the present embodiment, the beam members 150, 151, and 153 are arranged in parallel.

  The beam members 150, 151, and 153 have different widths (widths in the direction perpendicular to the longitudinal direction in plan view), and the beam members 151, the beam members 150, and the beam members 153 are widened in this order.

  The width of the beam member 151 is set so that the natural frequency becomes the peak value P2, the width of the beam member 150 is set so that the natural frequency becomes the peak value P1, and the beam member 153 has the natural frequency. The width is set to be the peak value P3.

The operation and effect of the first modification will be described.
Thus, since the beam members 150, 151, and 153 are made to resonate with respect to the frequencies of the plurality of peak values P1, P2, and P3 of the gantry 120 shown in FIG. 6, vibration energy is effectively reduced. Converted into electrical energy.

`` Fourth modification ''
In the fourth modified example, as shown in FIG. 8, one ends 160 </ b> A, 161 </ b> A, 163 </ b> A of the three beam members 160, 161, 163 are joined to the side part 122 of the gantry part 120. Further, the power generation unit 200 is provided on the lower surface of the other end 160B, 161B, 163B of the beam members 160, 161, 163. That is, the beam members 160, 161, and 163 are cantilever beams arranged in parallel.

  The lengths of the beam members 160, 161, and 163 in the longitudinal direction are different from each other, and are increased in the order of the beam member 161, the beam member 160, and the beam member 163.

  The length of the beam member 161 is set so that the natural frequency becomes the peak value P2, the length of the beam member 160 is set so that the natural frequency becomes the peak value P1, and the beam member 163 has the natural frequency. The length is set so that the number becomes the peak value P3.

The operation and effect of the first modification will be described.
As described above, since the beam members 160, 161, and 163 are made to resonate with respect to the vibration frequencies of the plurality of peak values P1, P2, and P3 of the gantry 120 shown in FIG. Converted into electrical energy.

"Other"
As described above, in the modification of the beam member, the natural frequency is adjusted by the width or length of the beam member, but the present invention is not limited to this. The natural frequency may be opened by any method.

  For example, the thickness of the beam member may be changed, or the material (spring constant) may be changed. Alternatively, the natural frequency may be changed by joining the weight to the beam member and changing the mass of the weight or the joining position (position in the longitudinal direction).

  In addition, since the beam member can be easily exchanged as in the second modification, it can be easily exchanged for a beam member having a different natural frequency according to the distribution of the frequency of the vibration source to be placed.

  In addition, like 2nd embodiment mentioned later, edge part 150A, 150B (refer FIG. 5) of the beam member 150 is made into the edge part 122 of the mount part 120, via the rubber member 352 (refer FIG. 11 (A)). 126 may be joined.

<Variation of power generation section>
Next, the first to third variations of the power generation unit will be described with reference to FIG.

  For ease of understanding, FIGS. 17A to 7B illustrate only the casing 50, the coil spring 20, and the weight 62, and FIG. 17C illustrates the casing 50 and the weight 62. Only the coil 40 is illustrated and described.

  In the power generation unit 201 of the first variation shown in FIG. 17A, the weight 62 is provided by the two coil springs 20 so as to be able to swing in the vibration direction G. Three or more coil springs 20 may be provided.

  In the power generation unit 203 of the second variation shown in FIG. 17B, the coil springs 20 are provided on both the ceiling 50A and the bottom 50C of the housing 50, so that the weight 62 can swing in the vibration direction G. Is provided.

  In other words, the coil springs 20 are provided between the ceiling 50A and the weight 62 and between the bottom 50C and the weight 62, respectively.

  In the power generation unit 205 of the third variation shown in FIG. 17C, the first member is the coil 40 and the second member is the magnet 38. That is, the magnet 38 is fixed to the bottom 50 </ b> A and the coil 40 is fixed to the weight 62. The coil 40 moves in the vibration direction G to generate power.

<Second embodiment>
Next, using FIG. 9 to FIG. 11, an outdoor unit of a large-scale air conditioner for buildings (commercial air conditioner) as an example of a vibration source on a vibration isolator according to the second embodiment of the present invention. A power generation system for generating electric power by reducing vibration transmitted to the floor slab and converting vibration energy of the outdoor unit into electric energy will be described.

  In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment, and the overlapping description is abbreviate | omitted or simplified. Moreover, although illustration is abbreviate | omitted, also in this embodiment, the outdoor unit shown in FIG. 1 is mounted on the mount part of the vibration isolator.

As shown in FIG. 9, the vibration isolation table 300 is provided with a power generation unit 202 described later.
As shown in FIGS. 9 to 11A, between the long side portion 122 and the side portion 126 in the gantry portion 120 of the vibration isolator 300, a plate-like shape that is a long and narrow rectangular shape in plan view. End portions 350 </ b> A and 350 </ b> B of the beam member 350 are joined via a plate-like rubber member 352. That is, the beam member 250 is stretched between the side portion 122 and the side portion 126.

  As shown in FIG. 11A, one end 352A of the rubber member 352 is fitted into the sides 122 and 126 of the gantry 120, and the other end 352B is fitted into the ends 350A and 350B of the beam member 350.

  As shown in FIGS. 9 to 11A, a plurality of recesses 354 are formed on the upper surface of the beam member 350 side by side in the longitudinal direction. A weight 360 is fitted into these recesses 354.

  As shown in FIGS. 9 and 11A, a disk-shaped magnet 370 is joined to the lower surface of the central portion of the beam member 350 in the longitudinal direction.

  On the other hand, as shown in FIGS. 9 to 11, between the long side portion 112 and the side portion 116 of the base portion 110 of the vibration isolation table 300, there is a plate member 380 having a long and narrow rectangular shape in plan view. The end portions 380A and 380B are joined. That is, the plate member 380 is spanned between the side portion 122 and the side portion 126.

  As shown in FIG. 10, the plate member 380 is slightly wider than the beam member 350, and is disposed so as to overlap the beam member 350 in plan view. Then, as shown in FIGS. 9 and 11A, a disk-shaped coil member 382 is disposed at a position facing the magnet 370 on the upper surface of the plate member 380. Further, as shown in FIG. 11B, the coil member 382 has a coil 384 wound in a spiral shape (coil 384 having a planar spiral shape).

  The magnet 370 and the coil member 382 (coil 384) are the main members constituting the power generation unit 202.

Next, functions and effects of the present embodiment will be described.
The outdoor unit 10 (see FIG. 1) placed on the gantry 120 of the vibration isolator 300 vibrates. The gantry 120 is vibrated by the vibration of the outdoor unit 10. However, the vibration transmitted to the base 110 by the vibration isolation member 108 is reduced, and as a result, the vibration transmitted to the floor slab 12 is reduced.

  The beam member 350 provided on the gantry 120 so as to be able to swing is set so that the natural frequency matches or substantially matches the frequency of the gantry 120, so that the beam member 350 resonates with the gantry 120. The amplitude of vibration is amplified.

  The beam member 350 mainly vibrates in the vertical direction due to resonance. Therefore, the magnet 370 of the power generation unit 202 fixed to the lower surface of the beam member 350 vibrates in the vertical direction (vibration direction G). That is, as shown in FIG. 11A, the magnet 370 repeats approaching and separating in the vertical direction with respect to the coil 384 (coil member 382) (the magnet 370 and the coil 384 constituting the power generation unit 202 are relatively moved). To do).

  Thereby, in 1st embodiment, as demonstrated using Formula (1), electric power generate | occur | produces in the coil 384 by the principle of electromagnetic induction. That is, the vibration energy of the outdoor unit 10 is converted into electric energy.

  In addition, since the beam member 350 resonates with the gantry 120 and the amplitude is amplified, the vibration energy of the gantry 120 (the outdoor unit 10) is effectively converted into electric energy.

  In addition, the vibration of the gantry 120 is reduced by the amount of energy converted from vibration energy to electrical energy (a vibration control effect is exhibited). Therefore, the vibration energy of the gantry 120 is effectively reduced by effectively converting the vibration energy of the gantry 120 into electric energy. And the vibration transmitted to the base part 110, ie, the floor slab 12, is reduced because the vibration of the gantry part 120 is reduced. That is, the vibration reduction effect of the vibration isolator 300 is improved.

  Further, the side members 122 and 126 of the gantry 120 and the end portions 350A and 350B of the beam member 350 are joined to each other through the rubber member 352 so that the beam member 350 can be swung (vibrated) easily. It becomes a structure. Therefore, the amplitude of the beam member 350 is increased, and as a result, the amount of power generation is increased.

Also in this embodiment, as shown in FIG. 5A, the end portions 350A and 350B of the beam member 350 may be directly joined to the side portions 122 and 126 of the gantry 120, or FIG. ) And FIG. 5C, the side portions 122 and 126 of the gantry portion 120 and the end portions 350A and 350B of the beam member 350 may be joined via a flat plate 152.
As described above, also in the first embodiment, the end portions 150A and 150B (see FIG. 5) of the beam member 150 are connected to the side portions 122 and 126 of the gantry 120 via the rubber member 352 as in the present embodiment. You may join to.

  Further, by adjusting the mass and number of the weights 360 provided on the upper surface of the beam member 350, the natural frequency of the beam member 350 can be easily adjusted. Therefore, for example, when the peak value P1 (see FIG. 4) differs depending on the type of the outdoor unit 10 of the vibration source, the natural frequency can be adjusted to the peak value P1.

  Here, when the magnet 370 moves in the vibration direction G (axial direction) with respect to the coil 384 and electric power is generated, the resistance force that suppresses the vibration of the magnet 370 by the counter electromotive force generated in the coil 384 is generated by the coils 384 and the like. Acting on the magnet 370, the amplitude of vibration of the magnet 370, that is, the beam member 350 is reduced.

  However, the inertial force of the beam member 350 is increased by the weight of the weight 360. Therefore, the vibration suppression effect by the resistance force which acts on the magnet 370 (beam member 350) from the coil 384 is reduced. That is, a decrease in amplification factor by which the amplitude of the magnet 370 (beam member 350) due to resonance is amplified is reduced.

  In the embodiment, the magnet is provided on the beam member side and the coil is provided on the plate member side. However, the present invention is not limited to this. A coil may be provided on the beam member side, and a magnet may be provided on the plate member side.

<Modification of Second Embodiment>
Next, a modification of the second embodiment will be described.

"First variation"
In the first modified example, as shown in FIG. 12, three beam members 350, 351, and 353 are joined to the side portion 122 and the side portion 126 of the gantry portion 120 and are spanned. In the present embodiment, the beam members 350, 351, and 353 are arranged in parallel.

  The masses of the weights 360, 361, and 363 provided on the beam members 350, 351, and 353 are different from each other, and the weights 361 (the beam member 351), the weight 360 (the beam member 350), and the weight 363 (the beam member 353) are different. Heavier in order.

  The mass of the weight 361 is set so that the natural frequency of the beam member 351 becomes the peak value P2, and the mass of the weight 360 is set so that the natural frequency of the beam member 350 becomes the peak value P1. In 353, the mass of the weight 363 is set so that the natural frequency becomes the peak value P3.

The operation and effect of the first modification will be described.
Thus, since the beam members 350, 351, and 353 are resonated with respect to the frequencies of the plurality of peak values P1, P2, and P3 of the gantry 120 shown in FIG. 6, vibration energy is effectively reduced. Converted into electrical energy.

"Second modification"
As shown in FIG. 13, in the second modification, two beam members 350 are stretched between the side portion 122 and the side portion 122 of the gantry portion 120 with an interval in the X direction. Further, two beam members 355 are stretched over the beam member 350 and the beam member 350 with a gap in the Y direction.

  That is, the beam member 350 as the first vibration member provided on the pedestal 120 so as to be swingable, the beam member 355 as the second vibration member provided on the beam member 350 so as to be swingable, and the vibration member 359. It is configured.

  As described above, the beam member 355 slidably provided on the beam member 350 slidably provided on the gantry 120 is further slidably provided, whereby a multi-mass point system is configured.

The operation and effect of the second modification will be described.
The vibration member 359 composed of the beam member 350 provided on the pedestal 120 so as to be able to swing and the beam member 355 provided so as to be able to swing on the beam member 350 has an n-th order equal to the number of mass points. A natural frequency can be generated. Therefore, when the dominant frequency of the gantry 120 is widely distributed, it is possible to efficiently generate power.

<Variation of power generation unit of second embodiment>
In the present embodiment, as shown in FIGS. 9 and 11, the power generation unit 202 has a configuration in which a disk-shaped magnet 37 and a disk-shaped coil member 382 (planar spiral coil 384) repeat proximity and separation. However, it is not limited to this.
Next, variations of the power generation unit will be described.

"First variation"
In a power generation unit 204 of the first variation shown in FIG. 18, a columnar magnet 38 provided on the lower surface of the beam member 350 is disposed in a coil 40 wound in a cylindrical shape provided on the upper surface of the plate member 380. It is supposed to be configured.

"Second variation"
As shown in FIG. 19, the power generation unit 500 of the second variation has a vibration amplification structure unit 14 including four coil springs 20 and one weight 22 arranged at corners having a square shape in plan view. . The weight 22 is supported on the lower surface of the beam member 350 by the four coil springs 20 so as to be swingable. In FIG. 19, only two coil springs 20 are shown, but actually four are provided.

  A columnar inner guide member 26 having an accommodation hole 24 that opens downward is fixed to the lower surface of the beam member 350. A cylindrical outer guide member 30 having an accommodation hole 28 opening upward is fixed to the upper surface of the weight 22. The inner guide member 26 is inserted into the accommodation hole 28 of the outer guide member 30, and the outer guide member 30 can be moved relative to the inner guide member 26 in the vertical direction in this state.

  The coil spring 20 is disposed in the housing portion 32 formed by the housing hole 24 of the inner guide member 26 and the housing hole 28 of the outer guide member 30. The lower end portion of the coil spring 20 is fixed to the bottom portion 26 </ b> A of the inner guide member 26, and the upper end portion of the coil spring 20 is fixed to the ceiling portion 30 </ b> A of the outer guide member 30.

  By such a guide mechanism 34 constituted by the inner guide member 26 and the outer guide member 30, when the vertical vibration generated in the beam member 350 is transmitted to the weight 22 and the weight 22 is shaken, the weight 22 is laterally moved. The movement is restricted and the weight 22 can be moved up and down substantially vertically. Therefore, the vertical vibration of the beam member 350 can be effectively converted into the vertical vibration of the weight 22.

  A rubber member 36 is attached to the lower end portion of the inner guide member 26. When the vertical movement of the weight 22 becomes excessive, the rubber member 36 hits the lower surface of the floor portion 30A of the outer guide member 30 and the movement (vibration) of the weight 22 is restricted and vibration energy is absorbed. Functions as a stopper.

  The power generation mechanism 16 includes a coil 40 as a second member fixed to the upper surface of the plate member 380 and a columnar magnet 38 as a first member fixed to the lower surface of the weight 22 and moving within the coil 40. ing.

Next, the operation and effect of this modification will be described.
The gantry 120 and the beam member 350 resonate, and vibration in the vertical direction is generated in the beam member 350. Along with this, the magnet 38 vibrates in the vertical direction, and the coil 40 moves relative to the magnet 38 to generate electric power. That is, the vibration energy of the beam member 350 (outdoor unit 10) is converted into electric energy to generate electric power.

  As described in the first embodiment, it can be seen from the equation (1) that the power generation amount V is proportional to the change amount ΔΦ / Δt of the magnetic flux density per unit time. The magnetic flux density change amount ΔΦ / Δt increases as the magnet vibration amplitude (the relative movement amount between the magnet and the coil) increases. Therefore, the power generation amount increases as the magnet vibration amplitude increases.

  From this principle, it can be seen that if the amplitude of the magnet 38 can be increased, a large amount of power can be generated.

In the power generation unit 500, the natural frequency of the vibration system S ₁ formed by the vibration amplifying structure 14 (four coil springs 20 and one of the weight 22) and the magnet 38, adjust the weight and the spring constant of the weight 22 and the like By doing so, it can be changed (adjusted). Therefore, in the present embodiment, the natural frequency of the vibration system S1 matches or substantially matches the peak value P1 of the vibration frequency of the beam member 350 (see FIG. 4), and the weight 62 and the magnet 38 resonate. Since the weight 62, the length of the coil spring 20, and the spring constant are set, the amplitude of the weight 62 and the magnet 38 is amplified. That is, the amplitude of vibration of the weight 62 and the magnet 38 is increased.

  On the other hand, when the magnet 38 moves in the vibration direction G (axial direction) with respect to the coil 40 and electric power is generated, the resistance force that suppresses the vibration of the magnet 38 by the counter electromotive force generated in the coil 40 is applied from the coil 40 to the magnet. 38, and the amplitude of vibration of the magnet 38 is reduced.

  However, the inertia force of the magnet 38 increases with the weight of the weight 62. Therefore, the vibration suppression effect by the resistance force which acts on the magnet from the coil 40 is reduced. That is, a decrease in amplification factor by which the amplitude of the magnet 38 due to resonance is amplified is reduced.

  Thus, the amplitude of the vibration of the magnet 38 is amplified, and the decrease in amplification magnification due to the resistance force is reduced, so that the moving amount (amplitude) of the magnet 38 moving in the coil 40 increases.

  As the movement amount of the magnet 38 increases, the power generation amount increases as described using the equation (1). In other words, the vibration energy of the beam member 350 (the outdoor unit 10) is effectively converted into electric energy.

  Thus, the amplitude is amplified by resonating the beam member 350 with the gantry 120, and further, the amplitude is amplified by the vibration amplifying structure unit 14 including the weight 22 and the coil spring 20 of the power generation unit 500, thereby effectively. Since electric power is generated, the vibration energy of the gantry 120 (the outdoor unit 10) is effectively converted into electric energy.

  In addition, since the vibration energy of the gantry 120 is effectively converted into electrical energy in this way, the vibration of the gantry 120 is reduced, and as a result, the vibration transmitted to the floor slab 12 (see FIG. 1) is reduced. Is done. That is, the vibration reduction effect of the vibration isolator is improved.

"Third Variation"
As shown in FIG. 20, the power generation unit 510 of the third variation includes a vibration amplification structure unit 56 and a power generation mechanism unit 16.

  The vibration amplification structure portion 56 has a structure in which two vibration amplification units 64 and 66 are stacked in series in the vertical direction, and is provided on the lower surface of the beam member 350.

  The vibration amplification unit 64 includes four coil springs 20 and one weight 22, and the weight 22 is supported on the floor slab 12 by the coil spring 20 so as to be swingable.

  Further, the vibration amplification unit 66 includes one coil spring 20 and one weight 62, and the weight 62 is supported on the weight 22 by the coil spring 20 so as to be swingable.

  The power generation mechanism 16 includes a coil 40 fixed to the upper surface of the plate member 380, a columnar magnet 38 that is fixed to the upper surface of the weight 62 disposed in the lowermost layer of the vibration amplification structure 56, and moves in the coil 40. The electric power is generated by the relative movement of the coil 40 with respect to the magnet 38.

Next, the operation and effect of this variation will be described.
Electric power is generated from the coil 40 by the relative movement of the coil 40 with respect to the magnet 38 and the principle of electromagnetic induction.

  In addition, the amplification factor of the vibration of the magnet 38 with respect to the vibration of the beam member 350 is made larger than in the case of the vibration amplification structure configured by only one layer of vibration amplification unit (for example, only the vibration amplification unit 64). And the magnet 38 can be vibrated more greatly.

  In other words, the amplification factor of the amplitude of the magnet 38 with respect to the amplitude of the beam member 350 can be further increased. Further, the magnet 38 can be vibrated sufficiently even if the weight 62 is reduced.

  In addition, it is possible to generate the same number of natural frequencies as the number of the vibration amplification units 64 and 66, and increase the amplification factor of the vibration of the magnet 38 with respect to the vibration of the beam member 350 even at a frequency near the natural frequency. Therefore, electric power can be efficiently generated for the beam member 350 (outdoor unit 10) in which the dominant frequency is widely distributed.

Further, the natural frequency of the vibration system S ₃₁ constituted by the vibration amplification unit 64 (four coil springs 20 and one weight 22), and the vibration amplification unit 66 (one coil spring 20 and one weight 62) and 1 The natural frequency of the vibration system S ₃₂ constituted by the two magnets 38 and the weights of the weights 22 and 62 are individually set, whereby the natural frequency of the vibration system S ₃ of the entire power generation unit 510 is The weights 22 and 62 can be easily changed by setting the weight.

Further, in the case of the vibration amplification structure unit 56 constituted by the two layers of vibration amplification units 64 and 66 as in the power generation unit 510, the total value of the weight of the weight 62 of the second layer and the weight of the magnet 38 is 1. If the mass ratio divided by the weight of the weight 22 of the layer is reduced, the amplification factor of the amplitude of the magnet 38 with respect to the amplitude of the beam member 350 can be increased, and if this mass ratio is increased, the vibration amplification structure portion 56 is increased. interval frequency of the vibration system S ₃ 2 two natural frequencies occurring in the (primary natural frequency and the secondary natural frequency) can be widened in.

  Therefore, a large amount of power generation can be obtained by appropriately setting this mass ratio in accordance with the vibration characteristics of the beam member 350 (outdoor unit 10).

"Fourth variation"
Up to this point, electric power was generated from the coil by the principle of electromagnetic induction by relative movement of the coil and the magnet, but the present invention is not limited to this.

  Any principle or configuration may be used as long as the first member and the second member can move relative to each other to generate electric power. Therefore, in the fourth variation to the seventh variation, power generation units having different principles for generating electric power will be described.

  A power generation unit 520 of the fourth variation shown in FIG. 21 is obtained by installing a power generation mechanism unit 138 under the weight 22 of the vibration amplification structure unit 14 of the power generation unit 500 of the second variation described above. The power generation mechanism unit 138 includes a piezoelectric element 140 and a weight 142. The piezoelectric element 140 is fixed to the lower surface of the weight 22, and the weight 142 is fixed below the piezoelectric element 140.

  The “piezoelectric element” is a passive element that uses a piezoelectric effect that converts a force applied to a piezoelectric body into a voltage or converts a voltage into a force.

  The weight 22 vibrates in the vibration direction G (vertical direction in the drawing). This vibration is transmitted to the weight 142 through the piezoelectric element 140, and the weight 142 vibrates in the vibration direction G direction. At this time, compressive stress and tensile stress are repeatedly applied to the piezoelectric element 140, thereby generating electric power at the electrodes 144 </ b> A and 144 </ b> B provided above and below the piezoelectric element 140.

  In this variation, the lower end portion of the piezoelectric element 140 is the first member, and the weight 142 is the second member.

  Here, when the electric power is generated by the power generation mechanism unit 138, if a resistance force that suppresses vibration of the lower end portion of the piezoelectric element 140 is applied from the weight 142, the amplitude of vibration of the piezoelectric element 140 becomes small.

  However, since it is fixed to the weight 22, the inertial force increases due to the weight of the weight 22, thereby reducing the vibration suppressing effect due to the resistance force.

"Fifth variation"
The power generation unit 530 of the fifth variation shown in FIG. 22 is obtained by installing a power generation mechanism unit 148 under the weight 22 of the vibration amplification structure unit 14 of the power generation unit 500 of the second variation. The power generation mechanism 148 includes a piezoelectric element 141, a weight 143, and a support column 145. The support column 145 is fixed to the lower surface of the weight 22 and stands substantially vertically. The support column 145 is provided so that the weight 143 protrudes from the vicinity of the lower end of the support column 145 to the left and right (outward in the horizontal direction) via the piezoelectric element 141. Yes.

  The weight 22 vibrates in the vibration direction G (vertical direction in the figure). This vibration is transmitted to the weight 143 through the support column 145 and the piezoelectric element 141, and the weight 143 vibrates in the vibration direction G direction. At this time, shear stress repeatedly acts on the piezoelectric element 141, thereby generating electric power at the electrodes 147 </ b> A and 147 </ b> B provided on the left and right sides of the piezoelectric element 141.

  In the case of this modification, the support column 145 is the first member, and the weight 143 is the second member.

"Sixth Variation"
In the fourth variation and the fifth variation, electricity was generated using a piezoelectric element. In the sixth variation, electricity is generated by electrostatic induction using an electret having a semi-permanent charge.

  The power generation unit 540 of the sixth variation shown in FIG. 23 is obtained by installing a power generation mechanism unit 172 under the weight 22 of the vibration amplification structure unit 14 of the power generation unit 500 of the second variation described above.

The power generation mechanism 172 has a structure in which two planar bases 174 and 176 face each other. In this case, the base 174 is the first member, and the base 176 is the second member.
The base 174 has an upper end fixed under the weight 22, and the base 176 has a lower end fixed to the upper surface of the plate member 380. On the base 174, electrets 178 having a semipermanent charge are arranged in a comb shape. On the base 176, counter electrodes 180 facing the electret 178 are arranged in a comb shape.

  That is, the electret 178 in which the magnet 38 is charged semipermanently is replaced with the base 176 provided in a comb shape, and the coil 40 is replaced with the base 176 provided in the counter electrode 180 disposed to face the electret 178. It is configured.

  In the power generation mechanism 172, an electromotive force is generated by the relative movement of the electret 178 and the counter electrode 180, and power is generated from the counter electrode 180.

  Here, when the electric power is generated and the resistance force that suppresses the vibration of the base 176 is applied from the counter electrode 180, the amplitude of the vibration of the base 176 is reduced.

  However, since the base 176 is fixed to the weight 22, the inertial force increases due to the weight of the weight 22, thereby reducing the vibration suppressing effect due to the resistance force.

"Seventh Variation"
24 and 25 show a seventh variation power generation unit 550 using electrostatic induction. The power generation unit 5500 includes a vibration amplification structure unit 552 and a power generation mechanism unit 554.

  It should be noted that the plate member 381 spanned along the Y direction on the pedestal 110 is wider than the plate member 380 described in the second embodiment (see FIG. 9 and the like) in the X direction. It is the same composition.

  The vibration amplification structure 552 is provided on the plate member 381 (see FIG. 25), and converts the vertical vibration of the beam member 350 into the slide movement in the horizontal direction K, the beam member 350, and the moving member. Link member 630 rotatably connected to each of 124.

  The moving member 624 is plate-shaped and is arranged horizontally or substantially horizontally. Guide grooves 632 (see FIG. 25B) along the end 624A are formed on the upper and lower surfaces of the end 624A along the moving direction K of the moving member 624, respectively.

  Support members 658 are provided on both sides of the moving member 624. The support member 658 includes a fixed base 660 fixed to the upper surface of the plate member 381 and a ball slider 662 provided on the fixed base 660 and slidably attached to the end 624A of the moving member 624.

  The ball slider 662 includes a main body 664 having a C-shaped cross section and bearing balls 666 attached to upper and lower inner walls of the main body 664. The end 124A of the moving member 6124 is inserted into the main body 664, and the bearing ball 666 is engaged with the guide groove 632 of the end 624A.

  The ball slider 662 supports the moving member 624 so as to be slidable in the moving direction K along the guide groove 632. The guide groove 632 and the ball slider 662 constitute a slide mechanism 626. Note that various slide mechanisms such as a linear slider can be used instead of the slide mechanism 626.

  As shown in FIGS. 24 and 28, one end of the rod-shaped link member 630 is rotatably attached to the moving member 624 with a pin 682. On the other hand, a bearing portion 684 provided at the other end is rotatably attached to a rotating shaft 683 protruding in the X direction on the beam member 350. The link member 630 is inclined at a predetermined inclination angle θ (about 60 degrees in this embodiment) with respect to the moving direction K of the moving member 624. The link member 630 converts the vertical vibration G of the beam member 350 into vibration in the horizontal direction K of the moving member 624.

  The power generation mechanism section 554 includes an electret 678 attached to the lower surface of the moving member 624 and a counter electrode 680 attached to the plate member 381 and facing the electret 678. When the electret 678 and the counter electrode 680 move relative to each other, an electromotive force is generated, and power is generated in the counter electrode 680. That is, the power generation mechanism 554 is an electrostatic (electrostatic induction) generator. In addition, illustration of arrangement | positioning etc. which are connected to the electric power generation mechanism part 534 is abbreviate | omitted.

Next, the operation of the vibration amplification structure portion 552 will be described.
When the beam member 350 vibrates in the vibration direction G, the moving member 624 reciprocates in the horizontal direction K by the slide mechanism 626.

  More specifically, when the beam member 350 moves downward in the vibration direction G, the interval between the beam member 350 and the moving member 624 becomes narrower. That is, the other end of the link member 630 moves downward. Therefore, the link member 630 rotates in the direction in which the inclination angle θ decreases with the pin 682 and the rotation shaft 683 as the rotation axes. As a result, the moving member 624 moves to the left in the moving direction K in FIG. 24, and the electret 678 provided on the moving member 624 moves relative to the counter electrode 680 provided on the plate member 381. As a result, electric power is generated in the counter electrode 680.

  On the other hand, when the beam member 350 moves upward in the vibration direction G, the distance between the beam member 350 and the moving member 624 increases. That is, the other end of the link member 630 moves upward. Therefore, the link member 630 rotates in the direction in which the inclination angle θ increases with the pin 682 and the rotation shaft 683 as the rotation axes. As a result, the moving member 624 moves to the right in the moving direction K in FIG. 24, and the electret 678 provided on the moving member 624 moves relative to the counter electrode 680 provided on the plate member 381. As a result, electric power is generated in the counter electrode 680.

  The vibration in the vibration direction G of the beam member 350 is converted into the rotational motion of the link member 130 and is output to the moving member 624 as a displacement in the moving direction K. Therefore, the vibration amplitude of the beam member 350 is amplified and moved. The displacement amount of the member 124 becomes large.

  Therefore, the relative movement amount of the electret 678 with respect to the counter electrode 680 is increased, so that power generation efficiency is improved. In this embodiment, the inclination angle θ of the link member 630 is set to about 60 degrees. However, if the inclination angle θ is 45 or more, the vibration of the beam member 350 is amplified by the link member 630.

  Further, since the moving member 624 moves in the moving direction K (horizontal direction), that is, the moving member 624 does not move in the apparatus height direction of the vibration power generation unit (vibration directions G and Z directions), the height of the power generation unit 530 is increased. The thickness can be reduced. Therefore, since the storage space for the power generation unit 530 is reduced, the relative movement amount of the electret 678 with respect to the counter electrode 680 can be increased without increasing the interval between the gantry unit 120 and the pedestal unit 110.

"Eighth Variation"
26 and 27, as an eighth variation, a power generation unit 560 using electromagnetic induction is shown as in the first embodiment. The power generation unit 560 includes a vibration amplification structure unit 562 and a power generation mechanism unit 564. Note that power generation is possible using electrostatic induction as in the seventh embodiment.

  The vibration amplification structure unit 562 includes a rotating body 786 and a rotating mechanism 788 that rotates the rotating body 786. The rotating mechanism 788 is attached to the outer periphery of a disk-shaped rotating body 786, and is fixed to the ball bearing 790 that rotatably supports the rotating body 786 and the lower surface of the beam member 350 so as to protrude downward in the vertical direction. A screw member 794 that is screwed into a screw hole 792 formed in the center of the body 886.

  The ball bearing 790 includes an outer ring 790A and an inner ring 790B disposed in the outer ring 790A. A plurality of bearing balls 796 are provided between the outer ring 790A and the inner ring 790B, and the outer ring 790A and the inner ring 790B are relatively rotatable by the rotation of the bearing balls 796. The outer ring 790A is fixed to a support leg 798 provided on the plate member 381.

  The screw member 794 is attached to the lower surface of the beam member 350 with the axial direction as the vibration direction G. The screw member 794 is inserted into and removed from the screw hole 792 of the rotating body 786 along with the vertical vibration of the beam member 350. Thereby, the linear motion of the screw member 794 is converted into the rotational motion of the rotating body 786 by the screw mechanism of the screw member 794 and the screw hole 792. A ball screw mechanism or the like may be used instead of the screw mechanism of the screw member 794 and the screw hole 792.

  As shown in FIG. 27, a cylindrical support base 701 is provided below the rotating body 786. The support base 701 is fixed to the plate member 381, and a screw member 794 can be inserted / removed therein. A spiral coil 702 as a second member is provided at the upper end of the support base 701.

  On the other hand, a magnet 704 as a first member is provided on the lower surface of the rotating body 786. The coil 702 and the magnet 704 are arranged so as to face each other when the rotation of the rotating body 786 reaches a predetermined rotation angle. That is, with the rotation of the rotating body 786, the magnet 704 moves relative to the coil 702, and electromagnetic induction is generated in the coil 702. In addition, illustration of the wiring etc. which are connected to the coil 702 is omitted.

Next, the operation of the vibration amplification structure portion 562 will be described.
When the beam member 350 vibrates in the vibration direction G, the screw member 794 is inserted into and removed from the screw hole 792 of the rotating body 786. As a result, the inner ring 790B attached to the outer periphery of the rotating body 786 rotates relative to the outer ring 790A, and the rotating body 786 rotates. As a result, the magnet 704 provided on the lower surface of the rotating body 786 moves relative to the coil 702 provided at the upper end of the support base 701, and electromagnetic induction is generated in the coil 702. That is, electric power is generated in the coil 702, and the vibration energy of the vibration of the gantry 350 is converted into electric energy.

  Further, the vibration in the vibration direction G of the beam member 350 is converted into the rotational motion of the rotating body 786 by the screw mechanism of the screw member 794 and the screw hole 792. Therefore, the amplitude of vibration of the beam member 350 is amplified, and the amount of relative movement of the magnet 704 with respect to the coil 702 increases. Therefore, power generation efficiency is improved.

  Note that the magnet 704 is desirably provided on the lower surface in the vicinity of the outer peripheral portion of the rotating body 786. That is, the circumference of the circular movement locus drawn by the magnet 704 becomes longer, and the relative movement amount of the magnet 704 and the coil 702 is increased. At this time, the coil 702 may be disposed so as to face the magnet 704 when the rotation of the rotating body 786 reaches a predetermined rotation angle.

  Note that when power is generated using the principle of electrostatic induction, one of the coil 702 and the magnet 704 may be a counter electrode, and the other may be an electret.

<Third embodiment>
In the embodiment described so far, the vibration direction of the beam member is the vertical direction, but is not limited thereto. Therefore, in the third embodiment, an example in which the vibration direction of the beam member is the horizontal direction will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 14, in the vibration isolator 740 of this embodiment, the connection mechanism part 102 (see FIG. 2B) is not provided between the base part 110 (see FIG. 1) and the gantry part 120. Only the anti-vibration member 108 is sandwiched between them. Therefore, the gantry 120 can vibrate in the horizontal direction in addition to the vertical direction.

  One ends 750A, 760A, and 163A of two beam members 750 and 760 arranged along the Y direction are joined to the side portion 122 of the gantry 120 so as to be able to swing in the horizontal direction. That is, the beam members 750 and 760 are cantilever beams arranged in parallel. Note that the connection structures of FIGS. 5 and 11 can be applied to the connection portion between the ends 750A, 760A, and 163A of the beam members 750 and 760 and the side portion 122 of the gantry 120.

A magnet 752 and a coil 762 constituting the power generation unit 730 are provided on the opposite side surfaces 750C and 760C in the vicinity of the other end 750B and 760B of the beam members 750 and 760.
The beam members 750 and 760 are provided with weights 754 and 764.

Next, functions and effects of the present embodiment will be described.
The outdoor unit 10 (see FIG. 1) placed on the gantry 120 of the vibration isolator 740 vibrates. The gantry 120 is vibrated by the vibration of the outdoor unit 10. The beam members 750 and 760 vibrate in the horizontal direction. Therefore, the magnet 752 and the coil 762 fixed to the side surfaces 750C and 760C of the beam members 750 and 760 repeat approach and separation (the magnet 752 and the coil 762 constituting the power generation unit 730 relatively move).

  Here, the beam members 750 and 760 provided on the pedestal portion 120 so as to be able to swing in the horizontal direction are set so that the natural frequency matches or substantially matches the vibration frequency of the pedestal portion 120. 750 and 760 resonate with the gantry 120, and the amplitude of vibration is amplified.

  Further, the beam member 750 and the beam member 760 are set in phase so as to move (vibrate) in opposite directions. That is, when the beam member 750 moves in the direction away from the beam member 760 (right side in the drawing), the beam member 760 is also set to move in the direction away from the beam member 750 (left side in the drawing). When moving in the direction approaching the beam member 760 (left side in the figure), the beam member 760 is also set to move in the direction approaching the beam member 750 (right side in the figure).

  Thereby, in 1st embodiment, as demonstrated using Formula (1), electric power generate | occur | produces in the coil 384 by the principle of electromagnetic induction. That is, the vibration energy of the outdoor unit 10 is converted into electric energy.

  In addition, since the beam member 350 resonates with the gantry 120 and the amplitude is amplified, the vibration energy of the gantry 120 (the outdoor unit 10) is effectively converted into electric energy.

  In addition, the vibration of the gantry 120 is reduced by the amount of energy converted from vibration energy to electrical energy (a vibration control effect is exhibited). Therefore, the vibration energy of the gantry 120 is effectively reduced by effectively converting the vibration energy of the gantry 120 into electric energy. And the vibration transmitted to the base part 110, ie, the floor slab 12, is reduced because the vibration of the gantry part 120 is reduced. That is, the vibration reduction effect of the vibration isolator 100 is improved.

<Fourth embodiment>
In the embodiments described so far, the gantry portion has a rectangular frame shape in plan view, but is not limited thereto. Therefore, in the third embodiment, a configuration in which the gantry is not frame-shaped will be described. In addition, the same code | symbol is attached | subjected to the member same as 1st embodiment-3rd embodiment, and the overlapping description is abbreviate | omitted. Moreover, since the electric power generation part 200 is the structure same as the electric power generation part 200 demonstrated in 1st embodiment, description is abbreviate | omitted.

  As shown in FIG. 15, in the vibration isolator 800 of the present embodiment, the gantry 820 has a plate shape that is thicker than the gantry 120 (see FIG. 1). Four holes 822 having a square shape in plan view penetrating in the vertical direction are formed. In each hole 822, rod-shaped reinforcing members 824 and 826 are arranged in a lattice shape in plan view.

  A vibration member 830 is fixed to the end 820 </ b> A of the gantry 820. The vibration member 830 is provided at a columnar body 832 having one end 832A fixed to the gantry 820 and disposed vertically upward, and disposed at the other end 832B of the columnar body 832 along the Y direction (horizontal direction). A plate-like horizontal member 834. Therefore, when viewed in the X direction, the vibrating member 830 has a T-shape formed by the columnar body 832 and the horizontal member 804.

  Power generation units 200 are provided at both ends of the horizontal member 804 of the vibration member 830. In addition, since the electric power generation part 200 is the structure similar to 1st embodiment as mentioned above, description is abbreviate | omitted.

  Although not shown, the outdoor unit 10 (see FIG. 1) is placed on the gantry 820.

Next, the operation and effect of this embodiment will be described.
The outdoor unit 10 (see FIG. 1) placed on the gantry 820 of the vibration isolator 800 vibrates. The gantry 820 vibrates due to the vibration of the outdoor unit 10. When the gantry 820 vibrates, the vibrating member 830 vibrates. Thus, the columnar body 832 constituting the vibration member 830 vibrates in the Y direction at the other end 832B with the one end 832A as a fulcrum. Then, both end portions of the horizontal member 834 vibrate in the arrow S3 direction. Therefore, the vibration direction G is the Z direction.

  And the electric power generation part 200 generates electric power by this vibration. That is, the vibration energy of the vibration of the gantry 820 is converted into electric energy.

  In this embodiment, the amplitude is increased by increasing the length of the columnar body 832 in the longitudinal direction (Z direction) and the length of the horizontal member 834 in the longitudinal direction (Y direction). And the electric power generation amount of the electric power generation part 200 becomes large by enlarging an amplitude.

  The present invention is not limited to the above embodiment. Needless to say, various embodiments can be implemented without departing from the scope of the present invention.

  For example, in the above-described embodiment, a large-scale air conditioner for buildings (for business use) is installed on a concrete floor slab such as a roof as an example of a placement unit, and an example of a vibration source on a vibration isolator. Although an example in which an outdoor unit of an air conditioner apparatus is mounted has been described, the present invention is not limited to this.

  For example, examples of the vibration source placed on the vibration isolation table include general equipment that vibrates such as a pump, a cooling tower, a cogeneration, a chilling unit, a transformer, and a cubicle.

5 Power generation system 10 Outdoor unit (vibration source)
12 Floor slab (placed part)
14 Vibration amplification structure 20 Coil spring (support member)
22 weight 38 magnet (first member, second member)
40 Coil (first member, second member)
56 Vibration Amplifying Structure 62 Weight 108 Anti-Vibration Member 100 Anti-Vibration Stand 120 Mounting Base 141 Piezoelectric Element (Second Member)
143 weight (second member)
144A electrode (first member)
144B electrode (first member)
145 Prop (first member)
147A electrode (first member)
147B Electrode (first member)
150 Beam member (vibrating member)
151 Beam member (vibration member)
152 Flat plate (elastic member)
153 Beam member (vibrating member)
178 Electret (first member)
180 Counter electrode (second member)
200 Power generation unit 350 Beam member (vibration member, first vibration member)
351 Beam member (vibrating member)
352 Rubber member (elastic member)
353 Beam member (vibrating member)
355 Beam member (vibration member, second vibration member)
552 Vibration amplification structure part 562 Vibration amplification structure part 820 Base part 830 Vibration member

Claims (6)

A pedestal part provided on the placement part via a vibration isolation member and on which the vibration source is placed;
A vibration member that is provided slidably on the pedestal, and that vibrates with an amplitude amplified from the gantry,
A power generation unit that converts vibration energy of the vibration member into electric energy;
Have
The power generation unit
A first vibration amplifying unit having a first support member that swingably provides a first weight to the vibration member, and a second vibration amplifier having a second support member that swingably provides a second weight to the first weight. A vibration amplification structure having a unit;
A first member fixed to the second weight and a second member provided so as to be relatively movable with respect to the first member, and electric power is generated by relative movement between the first member and the second member. Power generation means to generate,
Anti-vibration table with A plurality of the vibration members are provided,
At least one of the vibration members is set to have a different natural frequency from the other vibration members.
The vibration isolator according to claim 1 . The vibrating member is
A first vibration member provided slidably on the gantry,
One or a plurality of second vibrating members provided slidably on the first member;
Consists of
The vibration isolator according to claim 1 or 2 . The vibration member is joined to the gantry part via an elastic member,
The vibration isolator according to any one of claims 1 to 3 . The gantry part has a frame part configured in a frame shape in plan view,
The vibration member has a beam shape in which the longitudinal direction is horizontally or substantially horizontally arranged, and one end or both ends thereof are joined to the frame portion so as to be swingable.
The vibration isolator according to any one of claims 1 to 4 . The power generation system which mounts a vibration source on the mount part of the vibration isolator of any one of Claims 1-5, and generates electric power.