TW201839289A - Damper with power generating function - Google Patents

Abstract

A damper with power generating function which can successfully generate damping force and successfully generate electric power provided. A damper 1 with power generating function includes a cylinder 10, a rod 50, magnetic particles 90, and a coil unit 20. The rod 50 which is reciprocally movable in an axial direction projects outside from the cylinder 10. The magnetic particles 90 have characteristics of a permanent magnet, and a plurality of magnetic particles 90 are filled in the cylinder 10. Directions of magnetic lines formed by the plurality of magnetic particles 90 are changed with reciprocal movement of the rod 50, so that the number of magnetic lines penetrating the coil unit 20 is changed, whereby induced electromotive force is generated in the coil unit 20.

Description

   Damper with generator energy   

The present invention relates to a damper with generator energy.

The damper (Patent Document 1) includes a cylinder body, a piston movably inserted into the cylinder body, and a rod movably inserted into the cylinder body and connected to the piston. This damper is provided with: an extension side chamber and a pressure side chamber, which are arranged in the cylinder body; an attenuation passage and a pump passage, which are connected in parallel with the extension side chamber and the pressure side chamber; a resistance element, which is arranged in the middle of the attenuation passage and is used for the passing fluid. Fluid flow provides resistance; and a two-way discharge type pump is provided in the middle of the pump passage. In addition, the pump of this damper is configured to be driven by a motor. If this damper is driven by a motor, it can feed fluid from the extension side chamber to the pressure side chamber, or from the pressure side chamber to the extension side chamber. That is, this damper itself can actively expand and contract to adjust the generation force (attenuation force). In addition, Patent Document 1 discloses a technology in which a pump and a motor of this damper function as a fluid motor and a generator, respectively, and can drive an engine to generate electricity by a fluid flow of a fluid passing through a pump passage.

    [Prior technical literature]         [Patent Literature]    

Patent Document 1: Japanese Patent Laid-Open No. 2015-102100

However, because this damper has a small flow of fluid flowing through the pump path, the pump and the motor are difficult to rotate, and the amount of power generated by the motor functioning as a generator is small. Therefore, this damper cannot generate electricity well.

The present invention has been completed in view of the actual situation of the above-mentioned conventional knowledge, and the problem to be solved is to provide a damper with a generator energy capable of generating a good attenuation force and generating electricity well.

A generator-equipped damper according to the present invention includes a housing, a rod, magnet particles, and a coil portion. The outer shell is provided with a rod that can be moved back and forth in the axial direction or rotatable around the axis. The magnet particles have the characteristics of a permanent magnet, and a plurality of magnet particles are filled in the casing. The coil part changes the direction of the magnetic field lines formed by the plurality of magnet particles along with the reciprocating movement of the rod or the rotation around the shaft, thereby changing the number of magnetic field lines passing through the coil part to generate an induced electromotive force.

This damper with generator energy generates a damping force by moving the magnet particles filled in the casing in the casing when the rod moves back and forth in the axial direction or rotates around the axis. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles moving inside the casing changes, the number of magnetic field lines passing through the coil portion also changes. Thereby, an induced electromotive force is generated in the coil portion. That is, this damper with generator power is used to generate electricity.

Therefore, the damper with a generator of the present invention can generate a damping force well, and can generate electricity well.

The magnet particles of the generator-equipped damper of the present invention may have elasticity. In this case, when the rod moves back and forth in the axial direction or rotates around the axis, the plurality of magnet particles filled in the housing will be elastically deformed. The friction force of the magnet particles generated by this time or the elastic reaction force of the magnet particles causes the damper with a generator to generate a damping force. In addition, because the magnet particles have elasticity, it is difficult for the magnet particles to sinter each other because the adjacent magnet particles are elastically deformed to each other. Therefore, it is difficult for this damper with a generator to hinder the axial reciprocating movement of the rod or the rotation around the shaft.

In the damper with a generator of the present invention, a coil portion can be arranged in the rod. In this case, the position of the coil portion in the rod can be reliably changed relative to the magnet particles in the case. Therefore, this damper with generator energy can surely pass the magnetic field lines of the magnet particles through the coil portion. As a result, the damper with a generator function can easily change the number of magnetic lines of force penetrating the coil portion, and it is easy to generate a larger induced electromotive force in the coil portion.

In the damper with a generator of the present invention, a permanent magnet can be arranged in the rod, and the coil portion can be arranged in the casing. In this case, the damper with a generator can use the permanent magnet in the rod to unify the orientation of the magnet particles so that the directions of the magnetic lines of force of the magnet particles are consistent. As a result, since the number of the magnetic field lines of the same direction penetrating the coil portion of the generator-equipped damper varies, it is easy to generate a larger induced electromotive force in the coil portion disposed in the casing.

The generator-equipped damper of the present invention may include a piston, which is arranged in the housing and connected to the rod, and moves back and forth with the rod. In this case, the damper with a generator can flow the magnet particles filled in the casing more frequently by the piston. Therefore, this damper with generator energy can make the magnetic lines of force of the magnet particles pass through the coil part more frequently. As a result, the damper with generator power can easily change the number of magnetic lines of force passing through the coil section more frequently, and it becomes easier to generate a larger induced electromotive force in the coil section.

In the damper with a generator of the present invention, a permanent magnet can be arranged in the piston, and the coil portion can be arranged in the casing. In this case, one side of the damper with generator energy can be unified by the permanent magnets inside the piston so that the directions of the magnetic lines of force of the magnetic particles filled in the shell are the same. Make the magnet particles filled in the casing flow more frequently. As a result, the damper with generator energy can easily change the number of magnetic field lines of the same direction penetrating the coil section more frequently, and it is easy to generate a larger induced electromotive force in the coil section disposed in the casing.

In the damper with a generator of the present invention, a coil portion can be arranged in the piston. In this case, the position of the coil portion disposed in the piston with respect to the magnet particles in the case can be reliably changed. Therefore, this damper with generator energy can surely pass the magnetic field lines of the magnet particles through the coil portion. As a result, the damper with a generator function can easily change the number of magnetic lines of force penetrating the coil portion, and it is easy to generate a larger induced electromotive force in the coil portion. In addition, since the generator-equipped damper can frequently flow the magnet particles filled in the casing by the piston, it becomes easier to generate a larger induced electromotive force in the coil part.

The generator-equipped damper of the present invention may include a rotor, which is arranged in the housing and connected to a rod that can rotate freely about an axis, and rotates in the housing together with the rod. In this case, when the rod and the rotor rotate around the axis, the magnetic particles filled in the housing flow in the direction in which the rod and the rotor rotate. As a result, the damper with generator energy can generate a damping force in a direction opposite to the direction in which the rod and the rotor rotate, and generate an induced electromotive force in the coil part.

1, 11, 21, 31, 41, 51, 61‧‧‧ dampers

10, 110‧‧‧ Cylinder block (shell)

10A, 110A‧‧‧ Open end

20, 120, 220, 320‧‧‧ Coil Department

30, 130, 230‧‧‧ Pistons

30A‧‧‧Central Section

30B‧‧‧ both ends

35‧‧‧rotor

35A‧‧‧Central Section

35B‧‧‧1st end

35C‧‧‧ 2nd end

35D‧‧‧The first plane

35E‧‧‧The second plane

40, 140‧‧‧ magnets (permanent magnets)

50, 150, 250, 350, 450, 550‧‧‧ par

60‧‧‧Sealed Bearing

70, 170‧‧‧ lever guide

70A‧‧‧through hole

70B‧‧‧ 锷 部

80‧‧‧thrust bearing

90‧‧‧ magnet particles

90A‧‧‧Neodymium particles

171‧‧‧1st rod guide

171A‧‧‧The first through hole

171B‧‧‧The first abutment

172‧‧‧ 2nd Rod Guide

172A‧‧‧The second through hole

172B‧‧‧The second abutment

173‧‧‧3rd rod guide

173A‧‧‧3th through hole

173B‧‧‧The third contact section

174‧‧‧4th bar guide

174A‧‧‧4th through hole

174B‧‧‧The fourth abutment

F‧‧‧ Pushing force

F1, F2‧‧‧‧ Force

Fig. 1 is a sectional view showing a damper with a generator function according to the first embodiment.

Fig. 2 is a schematic view of magnetic particles filled in a casing of a damper with a generator energy according to Embodiment 1.

FIG. 3 is a diagram showing the generated speed in the coil section when the speed (hereinafter, referred to as a frequency) of reciprocating the rod and the piston of the damper with a generator function of Embodiment 1 along the center axis direction of the casing is set to 1 Hz. A graph of the change in the magnitude of the induced electromotive force versus time, and (A) shows the change in the magnitude of the induced electromotive force in the first cycle over time, and (B) shows the change in magnitude of the induced electromotive force in the 10th cycle over time. .

FIG. 4 is a graph showing the change over time of the magnitude of the induced electromotive force generated in the coil section when the frequency of the rod and the piston of the damper with a generator energy of Embodiment 1 is set to 5 Hz, and ( A) shows the change of the magnitude of the induced electromotive force in the first cycle over time, and (B) shows the change of the magnitude of the induced electromotive force in the 10th cycle over time.

FIG. 5 is a graph showing the induced electromotive force generated in the coil section and the electric power generated by the induced electromotive force when the frequencies of the rod and the piston of the damper with a generator function according to Embodiment 1 are changed between 1 and 5 Hz every 1 Hz. (A) shows the magnitude of the induced electromotive force generated in the coil section relative to the frequency, and (B) shows the magnitude of the electric power generated in accordance with the induced electromotive force generated in the coil section relative to the frequency.

Fig. 6 is a sectional view showing a damper with a generator function according to the second embodiment.

Fig. 7 is a sectional view showing a generator-equipped damper according to the third embodiment.

Fig. 8 is a sectional view showing a damper with a generator function according to the fourth embodiment.

Fig. 9 is a sectional view showing a damper with a generator function according to the fifth embodiment.

Fig. 10 is a sectional view showing a damper according to Embodiment 6, and (A) is a sectional view in the direction of the central axis of the rotor, and (B) is a sectional view taken along the line A-A in Fig. 10 (A).

FIG. 11 (A) is a partially enlarged view showing a state of magnet particles abutting on a surface on the side where the piston moves in the damper with a generator energy of the first embodiment, and (B) is a view showing a state without the piston Partially enlarged view of the state of the magnet particles abutting on the surface of the rod in the damper with generator energy.

With reference to the drawings, an embodiment of a damper with a generator function according to the present invention will be specifically described.

    <Embodiment 1>    

As shown in FIG. 1, the generator-equipped damper 1 according to the first embodiment includes a cylinder body 10, a piston 30, a rod 50, a pair of rod guides 70, a plurality of magnet particles 90, and a coil portion 20.

The cylinder 10 has a cylindrical shape which is open at both ends. The piston 30 includes a central portion 30A and both end portions 30B. The central portion 30A has a cylindrical shape. The both end portions 30B are conical trapezoids whose outer diameters gradually become smaller as they are separated from both end surfaces of the central portion 30A. A predetermined gap is formed between the outer peripheral surface of the piston 30 and the inner peripheral surface of the cylinder block 10. The piston 30 is disposed in the cylinder block 10.

The rod 50 is formed in a cylindrical shape. The rod 50 is continuous to the front end of both end portions 30B of the piston 30 and extends in both directions of the piston 30. The rod 50 extends along the central axis direction of the cylinder block 10 and protrudes from the open end portions 10A at both ends of the cylinder block 10 toward the outside of the cylinder block 10. That is, the piston 30 is connected to the rod 50. The lever guide 70 is formed in a disc shape having a flange portion 70B on the outer periphery, and is connected to each of the open end portions 10A so as to close each of the open end portions 10A of both end portions of the cylinder block 10. The rod guides 70 are formed at the center of the disc shape and penetrate through the disc-shaped plate thickness direction, and are provided with through holes 70A. The inner diameter of the through-hole 70A is slightly larger than the outer diameter of the rod 50. The through-hole 70A penetrates the central axis direction of the cylinder block 10 in a state where the rod guide 70 is fixed to each of the open end portions 10A at both ends of the cylinder block 10. The rod 50 is inserted through the through-holes 70A of the rod guides 70 reciprocally. The rod 50 and the piston 30 are free to move back and forth in the cylinder block 10 along the central axis direction of the cylinder block 10 together. The cylinder 10, the piston 30, the rod 50, and the pair of rod guides 70 are non-magnetic bodies.

As shown in FIG. 2, the plurality of magnet particles 90 are formed in a spherical shape. The magnet particles 90 are elastomers made of silicone rubber, which is an elastomer having a hardness A (hereinafter referred to as hardness) of 60 on the durometer. The magnet particles 90 include neodymium (Nd) particles 90A. The amount of the neodymium (Nd) particles 90A contained in the magnet particles 90 is about 60 wt.% (17.78 vol.%). The neodymium (Nd) particles 90A are magnetic. That is, the magnet particles 90 have magnetic properties and elasticity. The magnet particles 90 thus formed are magnetized and have magnetic properties. That is, the magnet particles 90 have the characteristics of a permanent magnet. The magnet particles 90 are filled at a filling rate of 60% in a space surrounded by the cylinder block 10 and a pair of rod guides 70 (that is, inside the cylinder block 10). The filling rate is expressed by the following formula (1). Moreover, the filling volume refers to the volume of the space in which the magnet particles 90 are filled.

[Equation 1] Filling rate = mass of magnet particles 90 / filling volume × density of magnet particles 90 (1)

The coil portion 20 is a metal wire having a plurality of coils coaxially wound on a surface covered with an insulating film, which has a predetermined width in a radial direction and is bundled into a cylindrical shape having an inner diameter slightly larger than the outer diameter of the cylinder 10. In addition, the metal wires of the coil section 20 are pulled out at both ends, respectively, and the electric current generated in accordance with the induced electromotive force generated in the coil section 20 is supplied to electrical equipment and the like provided outside the damper 1 with generator energy. Structure (not shown). The coil portion 20 is inserted into the cylinder block 10 such that the cylindrical inner side of the coil portion 20 is along the outer peripheral surface of the cylinder block 10 and is disposed on the outer peripheral surface of the cylinder block 10.

The generator-equipped damper 1 thus formed, when the piston 30 moves back and forth along the central axis of the cylinder 10, the magnet particles 90 pass through a predetermined gap between the outer peripheral surface of the piston 30 and the inner peripheral surface of the cylinder 10. While moving. At this time, between the inner peripheral surface of the cylinder block 10 and the magnet particles 90 abutting on the inner peripheral surface of the cylinder block 10, the adjacent magnet particles 90 between each other, and the outer peripheral surfaces of the rod 50 and the piston 30 are in contact with each other. A frictional force is generated between the rod 50 and the magnet particles 90 on the outer peripheral surface of the piston 30. In addition, the magnet particles 90 on the moving side of the piston 30 are pressed by the piston 30. At this time, the elastic reaction force generated by the magnet particles 90 squeezed by the piston 30 will press the piston 30 back. That is, the damper 1 with generator energy generates a damping force based on the friction force or elastic reaction force thus generated. In addition, as shown in FIG. 11 (A), when the magnet particles 90 located on the side where the piston 30 moves are pressed by the piston 30, a pressing force F is applied to the magnet particles 90. The direction of the pressing force F is a direction perpendicular to the inclined surfaces of the both end portions 30B. The pushing force F can be divided into a component force F1 in the direction of the central axis of the cylinder block 10 and a component force F2 in a direction separated from the central axis of the cylinder block 10. The magnet particles 90 squeezed by the piston 30 are moved in a direction separated from the central axis of the cylinder block 10 by the component force F2. On the other hand, when the piston 550 is not provided with a generator-like damper 61 as shown in FIG. The magnet particles 90 on the surface roll or move along with the rod 550 by the frictional force generated with the outer peripheral surface of the rod 550. That is, without a piston, the magnet particles 90 are not pressed by the rod 550 that moves in the direction of the central axis of the cylinder 10. Therefore, no pushing force is applied to the magnet particles 90, and the flow of the magnet particles 90 is small compared to a case where a piston is provided. That is, by providing the piston 30, the magnet particles 90 filled in the cylinder block 10 can flow more frequently.

In addition, at this time, the direction of the magnetic field lines formed by the plurality of magnet particles 90 will change with the back-and-forth movement of the rod 50 and the piston 30, whereby the number of magnetic field lines formed by the plurality of magnet particles 90 penetrating the coil portion 20 will also change. As a result, an induced electromotive force is generated in the coil section 20. That is, the generator-equipped damper 1 generates electric power with the coil unit 20.

Next, FIGS. 3 (A) and (B) show the paired time of the magnitude of the induced electromotive force generated in the coil unit 20 when the rod 50 and the piston 30 of the damper 1 with generator energy are set to a frequency of 1 Hz. Graph of change. Specifically, FIG. 3 (A) shows the change of the magnitude of the induced electromotive force in the first period over time, and FIG. 3 (B) shows the change of the magnitude of the induced electromotive force in the 10th period over time.

As shown in FIGS. 3 (A) and (B), an induced electromotive force is generated in the entire area where the rod 50 and the piston 30 move in the direction of the central axis of the cylinder 10. In addition, the waveforms of the induced electromotive force generated in the first cycle and the tenth cycle are different from each other. This is considered to be because each time the rod 50 and the piston 30 repeatedly move back and forth in the direction of the central axis of the cylinder 10, the direction of the magnetic field lines of the plurality of magnet particles 90 changes, so the magnetic field lines passing through the coil portion 20 The change of quantity is also caused by different factors.

Next, Figs. 4 (A) and (B) show the paired time of the magnitude of the induced electromotive force generated in the coil section 20 when the rod 50 and the piston 30 of the damper 1 with generator energy are set to a frequency of 5 Hz. Graph of change. Specifically, FIG. 4 (A) shows the change of the magnitude of the induced electromotive force in the first period over time, and FIG. 4 (B) shows the change of the magnitude of the induced electromotive force in the 10th period over time.

As shown in FIGS. 4 (A) and 4 (B), an induced electromotive force is generated in the entire area where the rod 50 and the piston 30 move in the direction of the central axis of the cylinder block 10. In addition, compared with the case where the rod 50 and the piston 30 have a frequency of 1 Hz, the magnitude of the induced electromotive force is larger. This is considered to be caused by a factor that the magnetic particles 90 filled in the cylinder 10 flow more frequently than the case where the frequency is 1 Hz, and the number of magnetic lines of force penetrating the coil portion 20 changes more frequently. In addition, the waveforms of the induced electromotive force generated in the first cycle and the tenth cycle are different from each other. This is considered to be because each time the rod 50 and the piston 30 repeatedly move back and forth in the direction of the central axis of the cylinder 10, the direction of the magnetic field lines of the plurality of magnet particles 90 changes, so the number of magnetic field lines passing through the coil portion 20 The changes are also caused by different factors.

Next, Figs. 5 (A) and (B) show the induced electromotive force generated in the coil unit 20 when the rod 50 and the piston 30 of the damper 1 with generator energy are changed at a frequency of 1 to 5 Hz, and based on The amount of electricity generated by the induced electromotive force. Specifically, FIG. 5 (A) shows the magnitude of the average value of the induced electromotive force generated in the coil section 20 during the predetermined number of reciprocating movements of the rod 50 and the piston 30. FIG. The amount of electricity generated by the induced electromotive force. Specifically, it is a value obtained by dividing the resistance value (approximately 6.5 Ω (ohm)) of the coil portion 20 by squaring the average value of the induced electromotive force at each frequency in FIG. 5 (A).

As shown in FIGS. 5 (A) and (B), as the frequencies of the rod 50 and the piston 30 become larger, the magnitude of the induced electromotive force generated in the coil section 20 and the electric power generated based on the induced electromotive force generated in the coil section 20 Get bigger. This is considered to be due to the factors that the magnetic particles 90 filled in the cylinder block 10 flow more frequently as the frequencies of the rod 50 and the piston 30 become larger, and thus the number of magnetic lines of force penetrating the coil portion 20 changes more frequently. Cause.

In this way, when the damper 1 with generator power moves back and forth along the central axis direction of the cylinder block 10, the magnet particles 90 filled in the cylinder block 10 move inside the cylinder block 10, thereby causing attenuation. force. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 10 changes, the number of magnetic field lines passing through the coil section 20 also changes. As a result, an induced electromotive force is generated in the coil unit 20. That is, the damper 1 with a generator's energy performs power generation.

Therefore, the damper 1 with a generator of the present invention can generate a damping force well, and can generate electricity well.

In addition, the magnet particles 90 of the generator-equipped damper 1 have elasticity. Therefore, when the rod 50 moves back and forth in the axial direction or rotates around the axis, the plurality of magnet particles 90 filled in the cylinder body 10 will be elastically deformed. By the frictional force of the magnet particles 90 or the elastic reaction force of the magnet particles 90 generated at this time, the damper 1 with a generator power generates a damping force. In addition, since the magnet particles 90 have elasticity, the adjacent magnet particles 90 are elastically deformed to each other, and the magnet particles 90 are difficult to sinter with each other. Therefore, it is difficult for the damper 1 with a generator to hinder the axial reciprocating movement of the rod 50 or the rotation around the shaft.

In addition, the generator-equipped damper 1 includes a piston 30 that is arranged in the cylinder block 10 and is connected to the rod 50 and moves back and forth with the rod 50. Therefore, the generator-equipped damper 1 can cause the magnet particles 90 filled in the cylinder block 10 to flow more frequently through the piston 30. Therefore, the generator-equipped damper 1 allows the magnetic lines of force of the magnet particles 90 to pass through the coil portion 20 more frequently. As a result, the damper 1 with generator power can easily change the number of magnetic lines of force penetrating the coil section 20 more frequently, and it becomes easier for the coil section 20 to generate a larger induced electromotive force.

    <Embodiment 2>    

As shown in FIG. 6, the generator-equipped damper 11 according to the second embodiment is different from the first embodiment in that the piston 130 is provided with a magnet 40 that is a permanent magnet. The other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same configurations, and detailed descriptions are omitted.

As shown in FIG. 6, the generator-equipped damper 11 of the second embodiment is provided with a magnet 40 inside the piston 130. The magnet 40 has the characteristics of a permanent magnet. For example, the magnet 40 is formed in a cylindrical shape, and a central axis of the magnet 40 is coaxial with the central axis of the rod 50 and the piston 130 and is disposed in the piston 130. In addition, the magnet 40 is magnetized such that one end side of a cylindrical shape becomes an N pole and the other end side becomes a S pole, for example.

The generator-equipped damper 11 thus formed, when the piston 130 moves back and forth along the central axis of the cylinder 10, the magnet particles 90 pass through a predetermined gap between the outer peripheral surface of the piston 130 and the inner peripheral surface of the cylinder 10. While moving. At this time, between the inner peripheral surface of the cylinder body 10 and the magnet particles 90 abutting on the inner peripheral surface of the cylinder body 10, between adjacent magnet particles 90, and the outer peripheral surfaces of the rod 50 and the piston 130 are in contact with each other. Friction is generated between the rod 50 and the magnet particles 90 on the outer peripheral surface of the piston 130. In addition, the magnet particles 90 on the moving side of the piston 130 are pressed by the piston 130. At this time, the elastic reaction force generated by the magnet particles 90 squeezed by the piston 130 will press the piston 130 back. That is, the damper 11 with generator energy generates a damping force based on the friction force or elastic reaction force thus generated.

In addition, at this time, the directions of the magnetic lines of force formed by the plurality of magnet particles 90 will change with the back and forth movement of the rod 50 and the piston 130, whereby the number of magnetic lines of force formed by the plurality of magnet particles 90 penetrating the coil portion 20 will also change. As a result, an induced electromotive force is generated in the coil section 20. That is, the generator-equipped damper 11 generates power by the coil unit 20.

In this way, when the damper 11 with generator power moves back and forth along the central axis of the cylinder block 10 and the piston 130, the magnetic particles 90 filled in the cylinder block 10 move inside the cylinder block 10, thereby causing attenuation. force. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 10 changes, the number of magnetic field lines passing through the coil portion 20 also changes. As a result, an induced electromotive force is generated in the coil unit 20. That is, the damper 11 with generator power is used for power generation.

Therefore, the damper 11 with a generator capacity of the present invention can also generate a damping force well, and can generate electricity well.

In addition, the generator-equipped damper 11 is provided with a magnet 40 disposed in the piston 130 and a coil portion 20 disposed in the cylinder block 10. Therefore, the generator-attached damper 11 can be uniformly oriented by the magnet 40 in the piston 130 so that the directions of the magnetic lines of force of the magnet particles 90 filled in the cylinder 10 are the same. The magnet particles 90 filled in the cylinder 10 are caused to flow more frequently by the piston 130. As a result, the damper 11 with generator energy can easily change the number of magnetic lines of force passing through the coil section 20 in the same direction more frequently, and it is easier for the coil section 20 disposed in the cylinder 10 to generate a larger induced electromotive force.

    <Embodiment 3>    

As shown in FIG. 7, the generator-equipped damper 21 according to the third embodiment is different from the first and second embodiments in that a coil portion 120 is provided in the piston 230. The other configurations are the same as those of the first and second embodiments, and the same reference numerals are assigned to the same configurations, and detailed descriptions are omitted.

The generator-equipped damper 21 according to the third embodiment is provided with a coil portion 120 in the piston 230. Specifically, as shown in FIG. 7, the coil portion 120 is disposed in the piston 230 such that the central axis of the coil portion 120 configured in a cylindrical shape is coaxial with the central axis of the rod 150 and the piston 230. In addition, both ends of the metal wire drawn from the coil section 120 are drawn toward the outside of the damper 21 with a generator through the inside of one side of the rod 150, and are configured to be based on the induction generated in the coil section 120. The electric current generated by the electromotive force is supplied to an electric device or the like (not shown) provided outside the damper 21 with generator power.

When the generator-equipped damper 21 is reciprocated in the direction of the central axis of the cylinder block 10, the magnet particles 90 pass through a predetermined gap between the outer peripheral surface of the piston 230 and the inner peripheral surface of the cylinder block 10. While moving. At this time, between the inner peripheral surface of the cylinder block 10 and the magnet particles 90 contacting the inner peripheral surface of the cylinder block 10, between adjacent magnet particles 90, and the outer peripheral surfaces of the rod 150 and the piston 230 are in contact with A frictional force is generated between the rod 150 and the magnet particles 90 on the outer peripheral surface of the piston 230. In addition, the magnet particles 90 on the moving side of the piston 230 are pressed by the piston 230. At this time, the elastic reaction force generated by the magnet particles 90 squeezed by the piston 230 will press the piston 230 back. That is, the damper 21 with generator energy generates a damping force based on the friction force or elastic reaction force thus generated.

In addition, at this time, the directions of the magnetic lines of force formed by the plurality of magnet particles 90 will change along with the back and forth movement of the rod 150 and the piston 230. As a result, the number of magnetic lines of force formed by the plurality of magnet particles 90 penetrating the coil portion 120 will also change. Therefore, an induced electromotive force is generated in the coil portion 120. That is, the generator-equipped damper 21 generates power by the coil unit 120.

In this way, when the damper 21 with generator power moves back and forth along the central axis of the cylinder block 10 and the piston 230, the magnetic particles 90 filled in the cylinder block 10 move in the cylinder block 10, thereby causing attenuation. force. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 10 changes, the number of magnetic field lines passing through the coil portion 120 also changes. As a result, an induced electromotive force is generated in the coil portion 120. That is, the damper 21 with generator power is used for power generation.

Therefore, the damper 21 with a generator of the present invention can also generate a damping force well, and can generate electricity well.

The generator-equipped damper 21 is provided with a coil portion 120 inside the piston 230. Therefore, the position of the coil portion 120 disposed in the piston 230 with respect to the magnet particles 90 in the cylinder 10 can be reliably changed. Therefore, the generator-equipped damper 21 can surely pass the magnetic field lines of the magnet particles 90 through the coil portion 120. As a result, the damper 21 with generator energy can easily change the number of magnetic lines of force penetrating the coil portion 120, and it is easy to generate a larger induced electromotive force in the coil portion 120. In addition, the generator-equipped damper 21 can cause the magnet particles 90 filled in the cylinder block 10 to flow more frequently by the piston 230, so that it is easier for the coil portion 120 to generate a larger induced electromotive force.

    <Embodiment 4>    

As shown in FIG. 8, the damper 31 with a generator function according to the fourth embodiment is different from the first to third embodiments in that a piston 140 is not provided and a magnet 140, which is a permanent magnet, is provided in the rod 250. The other configurations are the same as those of the first to third embodiments, and the same reference numerals are given to the same configurations, and detailed descriptions are omitted.

As shown in FIG. 8, the generator-equipped damper 31 of the fourth embodiment is provided with a magnet 140 inside the rod 250. The magnet 140 has the characteristics of a permanent magnet. For example, the magnet 140 is formed in a cylindrical shape, and a central axis thereof is coaxial with the central axis of the rod 250 and is disposed in the rod 250. In addition, the magnet 140 is magnetized such that one end side of the column shape becomes an N pole and the other end side becomes a S pole, for example.

The generator-equipped damper 31 thus formed, when the rod 250 moves back and forth along the central axis of the cylinder 10, the magnet particles 90 are attached to a predetermined gap between the outer peripheral surface of the rod 250 and the inner peripheral surface of the cylinder 10. mobile. Specifically, the magnet particles 90 abutting on the outer peripheral surface of the rod 250 move together with the rod 250 by the frictional force generated between the outer peripheral surface of the rod 250. At this time, a frictional force is also generated between the inner peripheral surface of the cylinder body 10 and the magnet particles 90 abutting on the inner peripheral surface of the cylinder body 10 and between the adjacent magnet particles 90. That is, the damper 31 with generator energy generates a damping force based on the friction force thus generated.

In addition, at this time, the directions of the magnetic lines of force formed by the plurality of magnet particles 90 will change with the back and forth movement of the rod 250, whereby the number of the magnetic lines of force formed by the plurality of magnet particles 90 penetrating the coil portion 20 will also change. The section 20 generates an induced electromotive force. That is, the generator-equipped damper 31 generates power by the coil unit 20.

In this way, when the damper 31 with generator energy moves back and forth in the direction of the central axis of the cylinder block 10, the magnet particles 90 filled in the cylinder block 10 move in the cylinder block 10 to generate a damping force. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 10 changes, the number of magnetic field lines passing through the coil portion 20 also changes. As a result, an induced electromotive force is generated in the coil unit 20. That is, the damper 31 with generator power is used for power generation.

Therefore, the damper 31 with a generator capacity of the present invention can also generate a damping force well, and can generate electricity well.

The generator-equipped damper 31 is provided with a magnet 140 disposed in the rod 250, and the coil portion 20 is disposed in the cylinder block 10. Therefore, the generator-equipped damper 31 can use the magnet 140 in the rod 250 to unify the orientation of the magnet particles 90 so that the directions of the magnetic lines of force of the magnet particles 90 are uniform. As a result, the number of the magnetic field lines with the same direction passing through the coil section 20 can be changed by the generator-equipped damper 31, so that it is easy for the coil section 20 disposed in the cylinder block 10 to generate a larger induced electromotive force.

    <Embodiment 5>    

As shown in FIG. 9, the damper 41 with a generator function according to the fifth embodiment is different from the first to fourth embodiments in that a piston is not provided and a coil portion 220 is provided in the rod 350. The other structures are the same as those of the first to fourth embodiments, and the same reference numerals are given to the same structures, and detailed descriptions are omitted.

The damper 41 with a generator function according to the fifth embodiment is provided with a coil portion 220 inside the rod 350. Specifically, as shown in FIG. 9, the coil portion 220 is disposed in the rod 350 such that the central axis of the coil portion 220 configured in a cylindrical shape and the central axis of the rod 350 are coaxial. In addition, both ends of the metal wire pulled out from the coil section 220 are pulled out toward the outside of the damper 41 with generator energy through the inside of one side of the rod 350, and are configured to be based on the induction generated in the coil section 220. The electric current generated by the electromotive force is supplied to an electric device or the like (not shown) provided outside the damper 41 with generator energy.

The generator-equipped damper 41 thus formed, when the rod 350 moves back and forth along the central axis of the cylinder 10, the magnet particles 90 are attached to a predetermined gap between the outer peripheral surface of the rod 350 and the inner peripheral surface of the cylinder 10. mobile. Specifically, the magnet particles 90 abutting on the outer peripheral surface of the rod 350 move with the rod 350 by the frictional force generated between the outer peripheral surface of the rod 350. At this time, a frictional force is also generated between the inner peripheral surface of the cylinder body 10 and the magnet particles 90 abutting on the inner peripheral surface of the cylinder body 10 and between the adjacent magnet particles 90. That is, the damper 41 with generator energy generates a damping force based on the frictional force thus generated.

In addition, at this time, the directions of the magnetic lines of force formed by the plurality of magnet particles 90 will change with the back and forth movement of the rod 350, thereby the number of the magnetic lines of force formed by the plurality of magnet particles 90 penetrating the coil portion 220 will also change, and thus An induced electromotive force is generated in the section 220. That is, the generator-equipped damper 41 generates power by the coil unit 220.

In this way, when the damper 41 with generator power moves back and forth along the central axis direction of the cylinder block 10, the magnet particles 90 filled in the cylinder block 10 move in the cylinder block 10 to generate a damping force. In addition, if the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 10 change, the number of magnetic field lines passing through the coil portion 220 also changes. As a result, an induced electromotive force is generated in the coil portion 220. That is, the damper 41 with generator power is used for power generation.

Therefore, the damper 41 with a generator of the present invention can also generate a damping force well, and can generate electricity well.

The generator-equipped damper 41 is attached to the coil portion 220 inside the rod 350. Therefore, the position of the coil portion 220 disposed in the rod 350 with respect to the magnet particles 90 in the cylinder 10 can be reliably changed. Therefore, the generator-equipped damper 41 can surely pass the magnetic lines of force of the magnet particles 90 through the coil portion 220. As a result, the damper 41 with generator energy can easily change the number of magnetic lines of force penetrating the coil portion 220, and thus it is easy to generate a larger induced electromotive force in the coil portion 220.

    <Embodiment 6>    

As shown in FIGS. 10 (A) and (B), the generator-equipped damper 51 of Embodiment 6 is based on the shape of the cylinder 110, the shape of the rod guide 170, and the rod 450 and the rotor 35 around the shaft, that is, the cylinder. The points of rotation of the central axis of the body 110, the shape of the coil portion 320, and the arrangement of the coil portion 320 with respect to the cylinder 110 are different from the embodiments 1 to 5. The other configurations are the same as those of the first to fifth embodiments, and the same reference numerals are given to the same configurations, and detailed descriptions are omitted.

As shown in FIGS. 10 (A) and (B), the cylinder 110 has a cylindrical shape with both ends open.

The rod guide 170, that is, the first rod guide 171 is disc-shaped, and is connected to the cylinder 110 so that the other surface abuts on one end surface of the cylinder 110 and closes one side of the cylinder 110. A first through hole 171A is provided at a disc-shaped center of the first rod guide 171 and penetrates the plate thickness direction. A first contact portion 171B is formed in the first through hole 171A on the other surface side of the first rod guide 171 and extends in a flat plate shape from the inner peripheral surface of the first through hole 171A. The inner diameter of the first contact portion 171B is slightly larger than the outer diameter of the rod 450 described later. A sealed bearing 60 is fitted in the first through hole 171A, and one surface of the sealed bearing 60 is in contact with one surface of the first contact portion 171B.

The rod guide 170, that is, the second rod guide 172, is disc-shaped, and is connected to the cylinder block 110 so that one side abuts against the other end surface of the cylinder block 110 and closes the other side of the cylinder block 110. A second through hole 172A is provided at a disc-shaped center of the second rod guide 172 and penetrates the plate thickness direction. In addition, a second abutting portion 172B extending in a flat plate shape from the inner peripheral surface of the second through hole 172A inwardly is formed in an intermediate portion of the second through hole 172A in the through-thickness direction. The inner diameter of the second contact portion 172B is slightly larger than the outer diameter of the rod 450. In addition, the inner diameter of the second through hole 172A is from the other surface of the second abutment portion 172B to the other surface of the second rod guide 172 (hereinafter, referred to as the other side of the second through hole 172A), It is smaller than the distance from one surface of the second contact portion 172B to one surface of the second lever guide 172 (hereinafter, referred to as one side of the second through hole 172A). A sealed bearing 60 is fitted in the other side of the second through-hole 172A, and one surface of the sealed bearing 60 is in contact with the other surface of the second contact portion 172B.

The lever guide 170, that is, the third lever guide 173, is disc-shaped thicker than the first lever guide 171 and the second lever guide 172. The disk-shaped outer diameter of the third rod guide 173 is substantially the same as the inner diameter of the cylinder 110. The third rod guide 173 is in contact with the other surface of the first rod guide 171 and is inserted into one of the open end portions 110A of the cylinder 110 and is connected to the first rod guide 171. A third through hole 173A is provided at a disc-shaped center of the third rod guide 173 and penetrates the plate thickness direction. In addition, a third contact portion 173B is formed in the third through hole 173A on the other surface side of the third lever guide 173 in a flat plate shape extending inward from the inner peripheral surface of the third through hole 173A. The inner diameter of the third contact portion 173B is slightly larger than the outer diameter of the first end portion 35B of the rotor 35 described later.

The lever guide 170, that is, the fourth lever guide 174, is a disk-like shape that is thicker than the first lever guide 171 and the second lever guide 172 and is thinner than the third lever guide 173. The disc-shaped outer diameter of the fourth rod guide 174 is substantially the same as the inner diameter of the cylinder 110. The fourth rod guide 174 is a disk-shaped other surface that abuts on one surface of the second rod guide 172, is inserted into the other open end portion 110A of the cylinder block 110, and is connected to the second rod guide 172. A fourth through hole 174A is provided at a disc-shaped center of the fourth lever guide 174 and penetrates the plate thickness direction. In addition, a fourth abutting portion 174B is formed in the fourth through hole 174A on one surface side of the fourth lever guide 174 in a flat plate shape extending inward from the inner peripheral surface of the fourth through hole 174A. The inner diameter of the fourth contact portion 174B is slightly larger than the outer diameter of the second end portion 35C of the rotor 35.

The rotor 35 includes a central portion 35A, a first end portion 35B, and a second end portion 35C. The central portion 35A is a cross-sectional shape that is arranged between the other surface of the third rod guide 173 and one surface of the fourth rod guide 174 and is orthogonal to the central axis of the cylinder 110, and is configured as a square (see FIG. 10 ( B)). Further, edge lines (hereinafter, referred to as edges) are formed between two adjacent surfaces of the four surfaces formed in a square shape.

In addition, a first plane 35D orthogonal to the central axis of the cylinder 110 is formed at both ends in the central axis direction of the cylinder 110 of the central portion 35A.

The first end portion 35B and the second end portion 35C are each formed in a cylindrical shape, and extend from the respective centers of the two first planes 35D of the central portion 35A in opposite directions to each other. In addition, a second plane 35E that is orthogonal to the central axis of the cylinder 110 is formed on the side of the first end portion 35B and the second end portion 35C that is separated from the central portion 35A.

The rod 450 extends from the center of the second plane 35E of the first end portion 35B and the second end portion 35C, respectively. That is, the rotor 35 is connected to the rod 450. The rod 450 and the first end portion 35B and the second end portion 35C are coaxial with each other. The rotor 35 is arranged in the cylinder block 110.

The rod 450 is rotatably connected to the first rod guide 171 and the second rod guide 172 via sealed bearings 60 that are respectively embedded in the first rod guide 171 and the second rod guide 172. The first end portion 35B and the second end portion 35C are rotatably inserted into the third contact portion 173B and the fourth rod guide 174 of the third through hole 173A of the third rod guide 173, respectively. The fourth contact portion 174B of the fourth through hole 174A.

In addition, a thrust bearing 80 is arranged inside the third through hole 173A of the third rod guide 173, and the thrust bearing 80 is inserted through the second plane of the first end portion 35B of the third contact portion 173B 35E and the other side of the first rod guide 171 are clamped. In addition, a thrust bearing 80 is also disposed inside the fourth through hole 174A of the fourth lever guide 174, and the thrust bearing 80 is inserted through the second end portion 35C of the fourth abutment portion 174B. Two planes 35E and one surface of the second rod guide 172 are sandwiched. As a result, the rod 450 and the rotor 35 can rotate freely about the central axis of the cylinder 110 together.

The coil portion 320 is a metal wire that is wound coaxially with a plurality of turns and covered with an insulating film, has a predetermined width in the radial direction, and is bundled into a cylindrical shape. The generator-equipped damper 51 is attached to the outer peripheral surface of the cylinder block 110, and four coil portions 320 are arranged so that one end side of each of the annular shapes is along the outer peripheral surface of the cylinder block 110.

The thus formed generator-equipped damper 51 causes the magnet particles 90 filled in the cylinder body 110 to flow when the rod 450 and the rotor 35 rotate around the central axis of the cylinder body 110. At this time, between the inner peripheral surface of the cylinder body 110 and the magnet particles 90 abutting the inner peripheral surface of the cylinder body 110, the adjacent magnet particles 90 between each other, and the surface of the central portion 35A of the rotor 35 are in contact with each other. Friction is generated between the magnet particles 90 on the surface of the central portion 35A of the rotor 35. The magnet particles 90 are squeezed by the central portion 35A of the rotating rotor 35. At this time, the elastic reaction force generated by the magnet particles 90 squeezed by the central portion 35A of the rotor 35 will press the central portion 35A of the rotor 35 back. That is, the damper 51 with generator energy generates a damping force in a direction opposite to the direction in which the rotor 35 rotates based on the friction force or elastic reaction force thus generated.

In addition, at this time, the directions of the magnetic lines of force formed by the plurality of magnet particles 90 will change with the rotation of the rod 450 and the rotor 35. As a result, the number of magnetic lines of force formed by the plurality of magnet particles 90 penetrating the four coil sections 320 will also change. Therefore, an induced electromotive force is generated in the coil portions 320. That is, the generator-equipped damper 51 generates power with four coil sections 320.

In this way, when the rod-equipped damper 51 and the rotor 35 rotate around the central axis of the cylinder block 110, the magnet particles 90 filled in the cylinder block 110 move in the cylinder block 110 to generate a damping force. In addition, if the direction of the magnetic field lines formed by the plurality of magnet particles 90 moving in the cylinder 110 changes, the number of magnetic field lines passing through the four coil portions 320 also changes. As a result, an induced electromotive force is generated in the coil section 320. That is, the power generator-equipped damper 51 performs power generation.

Therefore, the damper 51 with a generator capacity of the present invention can also generate a damping force well, and can generate electricity well.

In addition, the generator-equipped damper 51 includes a rotor 35 which is arranged in the cylinder block 110 and is connected to a rod 450 which can rotate freely about the central axis of the cylinder block 110, and is attached to the cylinder block 110 along with the rod 450. Rotate inside. Therefore, when the rod 450 and the rotor 35 rotate around the central axis of the cylinder body 110, the magnet particles 90 filled in the cylinder body 110 flow in the direction in which the rod 450 and the rotor 35 rotate. Thereby, the damper 51 with generator energy can generate an attenuation force in a direction opposite to the direction in which the rod 450 and the rotor 35 rotate, and generate an induced electromotive force in the coil portion 320.

The present invention is not limited to Embodiments 1 to 6 described by the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

(1) In the first, third, and fifth embodiments, the coil portion is provided on the outer peripheral surface of the cylinder, the piston, or the rod, but the coil portion may be provided on the outer peripheral surface of the cylinder, the rod, and the piston.

(2) In Embodiments 1 to 6, the magnet particles are elastomers having a hardness of 60, that is, elastomers made of silicone rubber. However, as long as they are magnetic, other materials may be used, and these materials may be used in combination. In addition, the hardness of the magnet particles can also be about 40 ~ 90. In addition, it can be a material that does not deform elastically.

(3) In the first to sixth embodiments, the plurality of magnet particles filled in the cylinder body have the same size as each other, but a plurality of types of magnetic particles having a particle diameter may be filled in the cylinder body.

(4) In Embodiments 1 to 6, the magnet particles contain neodymium (Nd) particles, but as long as they are magnetic materials, other materials may be included. In addition, these materials may be contained in combination.

(5) In Embodiments 1 to 6, the rod system protrudes from the open end of the cylinder block to the outside of the cylinder, but the rod may also protrude from one side of the piston (rotor), and the rod protrudes from one of the cylinder block's open ends. The part protrudes toward the outside of the cylinder.

(6) In the first to fifth embodiments, one cylindrical coil portion is provided, but a plurality of coil portions may be provided.

(7) In the sixth embodiment, edges are formed between two adjacent faces among the four faces formed in a square shape. However, the edges are not limited to strict angles, and chamfering may be performed, or two edges may be continuous. The way of individual faces is formed by curved surfaces.

Claims (10)

    A damper with generator energy is characterized in that it includes: a housing; a rod protruding from the housing to the outside, freely reciprocating in an axial direction or rotatable about an axis; a plurality of magnet particles, and the like It is filled in the case and has the characteristics of a permanent magnet; and a coil part that changes the direction of magnetic lines of force formed by the plurality of magnet particles along with the reciprocating movement of the rod or the rotation around the shaft, thereby penetrating the coil The number of the aforementioned magnetic lines of force in the department is changed to generate an induced electromotive force.         The damper with a generator energy according to claim 1, wherein the magnet particles have elasticity.         The damper with a generator function according to claim 1 or 2, wherein the coil portion is arranged in the rod.         For example, the damper with a generator function according to claim 1 or 2, wherein a permanent magnet is arranged in the rod, and the coil portion is arranged in the casing.         For example, the damper with a generator function according to claim 1 or 2, further comprising a piston, which is arranged in the housing and connected to the rod, and moves back and forth along with the rod.         For example, the damper with a generator function as claimed in claim 1 or 2 includes a rotor, which is arranged in the housing and is connected to the above-mentioned rod that can rotate freely about an axis, and rotates in the above-mentioned housing together with the above-mentioned rod. .         For example, the damper with a generator function according to claim 3, wherein the damper is provided with a piston which is arranged in the housing and connected to the rod, and moves back and forth along with the rod.         For example, the damper with a generator function according to claim 4, further comprising a piston, which is arranged in the housing and connected to the rod, and moves back and forth along with the rod.         For example, the damper with a generator function according to claim 7, wherein a permanent magnet is disposed in the piston, and the coil portion is disposed in the casing.         The damper with a generator function as claimed in claim 8, wherein the coil part is arranged in the piston.