JP2023030487A - Power generation device - Google Patents

Abstract

To stably and continuously generate power by the deformation of expansion and contraction of coil springs made of shape memory alloy.SOLUTION: A power generation device is provided with first partition walls 4 which can perform reciprocal movement within a sealed tank 1. First coil springs 2 and second coil springs 3 are provided across the first partition walls 4 in the sealed tank 1. Each coil spring 2, 3 is deformed to extend when heated to a threshold temperature T or more and is weakened when cooled to a level less than the threshold temperature T. A loop-shaped belt 16 is connected to the first partition walls 4, and a rotation transmission mechanism 17 provided in a rotor rotation shaft 23 of a power generator 20 is connected to the loop-shaped belt 16. The power generator 20 continuously executes power generation by converting reciprocal movement of the loop-shaped belt 16 generated by alternately executing extension deformation and weakening of the first coil springs 2 and the second coil springs 3 into rotation of the rotation shaft 23 in one direction by the rotation transmission mechanism 17.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a power generation device, in which coil springs made of a shape memory alloy are attached to the left and right sides of one partition wall provided in a box-shaped space, and the coil spring expands and contracts. The present invention relates to a power generator capable of generating power by combining with other members.

Prevention of global warming is now a common issue for all mankind. To solve this problem, the whole world is working on the problem of reducing greenhouse gas emissions. The Japanese government has also declared that it will aim for net zero greenhouse gas emissions by 2050. Therefore, as an immediate task, we set a target to reduce the consumption of fossil fuels that emit _CO2 . Power generators using natural energy such as wind power, solar power, geothermal power, hydraulic power, and ocean currents have been proposed as solutions to this problem. Among them, solar power generation using sunlight is gaining momentum. Power generators using shape memory alloy springs have been proposed as artificial power generation by extension and contraction of springs. For example, Japanese Unexamined Patent Application Publication No. 2009-243456 (Patent Document 1) discloses a power generation device that utilizes the expansion and contraction of a shape memory alloy spring using outside air temperature.

JP 2009-243456 A

The above Patent Document 1 relates to a power generation device using expansion and contraction of a shape memory alloy spring, but the expansion and contraction is based on solar heat, temperature difference between inside and outside the house, underground heat, thermal energy existing in the natural world, and exhaust gas. This is a so-called expansion and contraction method using the outside temperature. This is an external method for temperature control, and the idea of temperature control is not found there. If the expansion and contraction factor of the shape memory alloy spring is due to the temperature difference, the temperature utilization described above is a haphazard use of temperature. There is a danger that the fundamental flaw of lack of sexuality will arise.

Furthermore, in the power generating device of Patent Document 1, one shape memory alloy spring attached to the inner shaft is elongated and deformed, thereby rotating the pinion gear and generating power. Since the power generation device of Patent Document 1 is equipped with only one shape memory alloy spring, when the spring is stretched and deformed, the pinion gear can be actively rotated to generate power, but the stretched deformation occurs. Even if the spring is cooled below the threshold temperature, the pinion gear cannot be actively rotated and adjusted because it does not actively shrink and deform itself. In other words, power can be generated only when the shape memory alloy spring is elongated and deformed, and there is a drawback that the generator cannot be stably and continuously driven. In addition, since the temperature adjustment of the shape memory alloy spring depends on the outside air temperature, etc., the deformation of the spring cannot be adjusted appropriately, so there is a drawback that stable and continuous power generation cannot be performed.

In addition, the biggest problem in using a shape memory alloy spring is that the expansion and contraction of the shape memory alloy spring causes strain, which reduces the effectiveness of using the shape memory alloy spring. The main cause of distortion in shape memory alloy springs is excessive expansion and contraction during expansion and contraction. This is the distortion of (1). Next is the deflection when the shape memory alloy spring is extended. The longer the length of the spring, the easier it is for the spring to flex, and the strain caused by this flexion is the strain (2). Thirdly, the strain (3) is the strain that occurs when the shape memory alloy spring does not expand and contract in a timely manner due to the temperature relationship. The power generating device of Patent Document 1 does not take any measures to suppress the occurrence of strains (1) to (3) above, and therefore has the drawback that the characteristics of the shape memory alloy spring cannot be efficiently used. It is also pointed out that the repeated life of each coil spring made of shape memory alloy is shortened.

The invention of claim 1 of the present application is a power generator capable of generating power by driving a rotating shaft of a generator,
A first partition wall reciprocatingly provided in a closed vessel having a space formed therein, one end fixed to the inner wall of the closed vessel and the other end connected to the first partition wall, and a predetermined threshold temperature a first coil spring made of a shape memory alloy that elongates and deforms when heated above a threshold temperature and weakens when cooled below a threshold temperature;
Positioned opposite to the first coil spring across the first partition wall, one end is fixed to the inner wall of the closed vessel and the other end is connected to the first partition wall, and expands when heated to a predetermined threshold temperature or higher. a second coil spring made of a shape memory alloy that deforms and weakens when cooled below a threshold temperature;
reciprocating means connected to the first partition wall and reciprocating along with the reciprocating movement of the first partition wall;
a rotation transmission mechanism in which the reciprocating means and the rotating shaft are respectively linked, and which converts the reciprocating movement of the reciprocating means into unidirectional rotation of the rotating shaft;
By alternately executing the elongation deformation of the first coil spring and the weakening of the second coil spring, and the weakening of the first coil spring and the elongation deformation of the second coil spring, the first partition wall reciprocates and In conjunction with this, the reciprocating means reciprocates, and the reciprocating movement of the reciprocating means continuously rotates the rotating shaft of the rotation transmission mechanism in the same direction to generate power by the generator. and
According to the first aspect of the invention, the first coil spring made of a shape memory alloy is heated to a temperature equal to or higher than the threshold temperature, and the second coil spring made of a shape memory alloy is cooled to a temperature lower than the threshold temperature. By heating above the temperature and cooling the first coil spring below the threshold temperature, the reciprocating means is reciprocated by the reciprocating first partition wall, and the reciprocating movement of the reciprocating means is unidirectionally caused by the rotation transmission mechanism. Since the generator can be rotated continuously by converting to continuous rotation of , stable and continuous power generation is possible.

The invention of claim 2 of the present application provides a first partition wall slidably provided in the closed tank, a second partition wall slidably provided and fixed to the first partition wall, and a The interior of the closed tank is partitioned into a first space and a second space by a slidably provided first partition wall and a third partition wall in sliding contact with each other,
The first space is maintained at a temperature below the threshold temperature by the first temperature adjustment means,
The second space is maintained at a temperature equal to or higher than the threshold temperature by the second temperature control means,
When the first coil spring is stretched and deformed and the first partition wall moves to one side in the closed tank, the stretched and deformed first coil spring is located in the first space and is weakened and compressed by the first coil spring. The second coil spring is positioned in the second space, and in a state in which the second coil spring is stretched and deformed and the first partition wall is moved to the other side of the closed vessel, the stretched and deformed second coil spring is positioned in the first space. In addition, the first coil spring weakened and compressed by the second coil spring is configured to be positioned in the second space.
According to the invention of claim 2, the temperature of the first coil spring and the second coil spring made of a shape memory alloy can be appropriately adjusted by the first temperature adjusting means and the second temperature adjusting means, and the first partition The wall and the reciprocating means can be appropriately reciprocated, thereby stably and continuously driving the generator.

The rotation transmission mechanism of the invention of claim 3 of the present application comprises a first rotor linked to reciprocating means and a second rotor,
The first rotating body is rotatably attached to the rotating shaft,
the second rotating body is directly fixed to the rotating shaft at a position adjacent to the first rotating body;
a first transmission means for rotating the rotating shaft in one direction when the reciprocating means moves in the first direction; and a rotating shaft in the first direction when the reciprocating means moves in a second direction opposite to the first direction. and a second transmission means for rotating in the same direction as.
According to the third aspect of the invention, when the reciprocating means reciprocates in conjunction with the rotation transmission mechanism, the rotation of the rotary shaft can be appropriately converted into continuous rotation in the same direction by the rotation transmission mechanism. .

According to the power generator of the present invention, it is possible to stably and continuously generate power by expanding and contracting the coil spring made of a shape memory alloy, and to efficiently generate power. In addition, it is expected that the repeated life of each coil spring made of a shape memory alloy will be extended.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of a power generator according to one embodiment of the present invention; It is a perspective view of a rotation transmission mechanism. 3(a) shows a state in which the first rotor rotates in the first direction, and (b) shows a state in which the first rotor rotates in the opposite direction to the first direction. FIG. FIG. 10 is a diagram showing a situation of rotating in a second direction; (a) is a rear view of the rotation transmission mechanism as seen from the rear, and (b) is a drawing of the rotation transmission mechanism as seen from a direction perpendicular to the axial direction of the rotor rotating shaft. (a) is an explanatory diagram showing a state in which the second coil spring is stretched and deformed, and the first coil spring is weakened and compressed by the second coil spring to be contracted; (b) is an explanatory view showing the first coil spring; is elongated and deformed, the second coil spring is weakened, and is compressed and contracted by the first coil spring. FIG. 4 is a cross-sectional view showing a form in which the first to third partition walls are fitted into grooves on the front wall and the rear wall of the closed tank to move. (a) is a partial plan cross-sectional view of the closed vessel taken along the right side of the first partition wall, and (b) is a partial cross-sectional view taken along line XX of (a).

Next, the power generator of the present invention will be described with reference to the drawings. In the following embodiments, the left-right direction in FIG. up-down direction”. In addition, the size and dimensions of each member illustrated in the following description are only examples, and are not limited to these.

FIG. 1 is a drawing showing the overall configuration of a power generator CU of the present invention. The power generation device CU includes a first partition wall 4 provided reciprocally within a closed tank 1 having a space formed therein, and one end fixed to the inner wall of the closed tank 1 and the other end the first partition wall. 4 and is elongated and deformed when heated to a predetermined threshold temperature T or more, and made of a shape memory alloy that is weakened when cooled to less than the threshold temperature T, and a first partition wall 4 is sandwiched between the first coil spring 2 and the first coil spring 2. Positioned on the opposite side of the coil spring 2, one end is fixed to the inner wall of the closed tank 1 and the other end is connected to the first partition wall 4, and when heated to a predetermined threshold temperature T or higher, it is stretched and deformed to reach the threshold temperature. A loop belt (reciprocating means ) 16, and a rotation transmission mechanism 17 in which the loop belt 16 and the rotor rotation shaft (rotation shaft) 23 are linked, and which converts reciprocating movement of the loop belt 16 into rotation of the rotor rotation shaft 23 in one direction. As a result, the power generator CU alternately performs the stretching deformation of the first coil spring 2 and the weakening of the second coil spring 3 and the weakening of the first coil spring 2 and the stretching deformation of the second coil spring 3. As the first partition wall 4 reciprocates, the loop belt 16 reciprocates in conjunction with the reciprocation of the first partition wall 4, and the rotation transmission mechanism 17 continuously rotates the rotor rotating shaft 23 in the same direction. power generation by the generator 20 is executed.

That is, the power generator CU of FIG. 1 has a first partition wall 4 as a boundary inside the closed tank 1, and a first coil spring made of a shape memory alloy is provided on each of the left and right sides of this wall. 2 and a second coil spring 3 are attached. These first coil springs 2 and second coil springs 3 are small high-performance electric heaters (second temperature control means) 8 that obtain electricity from a storage battery (battery) 27 installed on the upper surface of the upper wall of the closed tank 1. , ultra-small high-performance cooling device (first temperature control means) 9, floor fan 28, and ceiling fan 29 alternately cause elongation deformation and weakening. For example, when the contracted first coil spring 2 on the left side is warmed and expands to the right, the expanded second coil spring 3 on the right side is cooled and weakened. It is compressed by the spring 2 and contracts. Further, when the contracted second coil spring 3 on the right side is warmed and expands to the left, the expanded first coil spring 2 on the left side is cooled and weakened. compressed and shortened. The coil springs 2 and 3 are configured to repeat a series of expansion and contraction operations to finally rotate the rotor rotating shaft 23 continuously, leading to power generation by the generator 20 .

(About closed tank 1)
First, the rectangular parallelepiped box of the sealed tank 1 in FIG. 1 will be described. The closed tank 1 comprises a first partition wall 4 slidably provided in the closed tank 1, a second partition wall 5 fixed to the first partition wall 4 and slidably provided, and the closed tank 1. The interior is partitioned into a first space R1 and a second space R2 by a third partition wall 6 which is slidably provided inside and is in contact with the first partition wall 4 . The sealed tank 1 is a hollow box with a rectangular parallelepiped heat-insulating structure consisting of a front wall, a rear wall, a left wall, a right wall, an upper wall and a lower wall, and the size and material can be selected arbitrarily. Each wall is a box with a thickness of 3 centimeters made of super-strong synthetic resin. For convenience of explanation, the volume is assumed to be 25 cm in length (up and down width), 41.6 cm in width (left and right width), and 24 cm in depth (front and rear width) in accordance with the maximum length of the shape memory alloy spring. Inside the closed tank 1, a first partition wall 4 (for example, 3 cm long, 3 cm wide, and 24 cm deep) is provided to divide the inside of the closed tank 1 into two left and right areas. With this first partition wall 4 as a boundary, a region is generated in which the first coil spring 2 and the second coil spring 3 expand and contract in the left and right directions. The first coil springs 2 and the second coil springs 3 are attached at the same horizontal positions on the left and right sides of the first partition wall 4. One of the same number of coil springs is attached to each side, and the other is attached to each of the previously attached coil springs. They are attached to the left wall or right wall inside the closed tank 1 at the same horizontal position so as to face each other.

(Regarding each guide groove 60, 61, 62)
As shown in FIG. 6, in the closed tank 1, first to third guide grooves 60, 61, 62 extend horizontally in the left-right direction on the inner wall surfaces of the front wall and the rear wall facing each other in the front-rear direction. is formed in The protrusion 4a formed at the front end of the first partition wall 4 is fitted into the first guide groove 60 formed in the front wall with almost no clearance, and the first guide groove 60 formed in the rear wall is fitted with the first partition wall. A protrusion 4a formed at the rear end of the wall 4 is fitted almost without any gap. That is, the first guide grooves 60, 60 realize stable reciprocating sliding movement in the horizontal direction of the first partition wall 4 in which the projections 4a, 4a at the front and rear ends are fitted. The front end of the second partition wall 5 fits into the second guide groove 61 formed in the front wall with almost no clearance, and the rear end of the second partition wall 5 fits in the second guide groove 61 formed in the rear wall. Fits almost seamlessly. That is, the second guide grooves 61, 61 realize stable reciprocating sliding movement in the left-right direction of the second partition wall 5 in which the front and rear ends are fitted. The front end of the third partition wall 6 fits into the third guide groove 62 formed in the front wall with almost no clearance, and the rear end of the third partition wall 6 fits into the second guide groove 62 formed in the rear wall. Fits almost seamlessly. That is, the third guide grooves 62, 62 realize stable reciprocating sliding movement in the left-right direction of the third partition wall 6 with the front and rear ends fitted therein. The first to third guide grooves 60, 61, 62 have a depth of 1.0 cm from the inner surface of the front wall or rear wall.

(About coil springs)
The first coil spring 2 and the second coil spring 3 are coil springs made of shape memory alloy. For example, the wire diameter of the first coil spring 2 and the second coil spring 3 is 1.2 mm, the outer diameter of the coil spring is 20 mm, the total number of turns is 30, and the shear strain is 1.0%. The first coil spring 2 and the second coil spring 3 are warmed from the most contracted state (the length of the first coil spring 2 and the second coil spring 3 in this state is, for example, 3.6 cm). When it reaches a predetermined temperature (threshold temperature T) at which the generated force increases, it suddenly becomes the most stretched state (the length of the first coil spring 2 and the second coil spring 3 in this state is, for example, 35 cm), In addition, when it is cooled down to below a predetermined temperature (threshold temperature T), the generated force is extremely weakened and weakened. The term “weakening” defined in the present application means that the shape memory alloy forming the first coil spring 2 and the second coil spring 3 is cooled to a temperature below a predetermined threshold temperature T (a temperature lower than the threshold temperature T). In this case, the characteristic of the shape memory alloy is that it does not undergo positive contraction deformation by itself, and that when a force is applied to the spring from the axial direction, it can be compressed with little resistance.

In the embodiment, as shown in FIG. 1 , when the first coil spring 2 and the second coil spring 3 extending in the left-right direction of the power generation device CU and arranged in series in the left-right direction are paired as a pair, they extend in the front-rear direction. A case is shown in which two pairs of the first coil spring 2 and the second coil spring 3 are provided at intervals. However, the number of pairs of the first coil spring 2 and the second coil spring 3 may be one, or three or more.

(About shape memory alloy)
The shape memory alloy forming the first coil spring 2 and the second coil spring 3 of the embodiment has the following physical properties and characteristics. This shape memory alloy is a shape memory alloy made of Ti (titanium) and Ni (nickel), and has physical properties such that it expands when heated and weakens when cooled. In the shape memory alloys of the examples, the operation completion temperature during heating (Af point) is set to 35°C or more, and the operation completion temperature during cooling (Mf point) is set to less than 35°C. Therefore, in the embodiment, the threshold temperature T is 35°C. The threshold temperature T can be adjusted by adjusting the compounding ratio of Ti (titanium), Ni (nickel), etc. in the shape memory alloy. The original size of the first coil spring 2 and the second coil spring 3 is longer than the extended state shown in FIG.

The first coil spring 2 and the second coil spring 3 made of such a shape memory alloy, when the shape memory alloy is heated to a temperature equal to or higher than the threshold temperature T, actively expands in the axial direction of the spring, It stretches even when force is applied from On the other hand, when the shape memory alloy cools to a temperature below the threshold temperature T, it becomes weakened, does not actively expand and contract in the axial direction of the spring, and contracts when a force is applied from the axial direction. Therefore, in the first coil spring 2 and the second coil spring 3 paired in series in the left-right direction, when the first coil spring 2 warms to the threshold temperature T or more and the second coil spring 3 cools to below the threshold temperature T 2, the first coil spring 2 expands and the second coil spring 3 is pushed by the first coil spring 2 and contracts. On the other hand, when the second coil spring 3 warms to the threshold temperature T or higher and the first coil spring 2 cools to below the threshold temperature T, the second coil spring 3 expands and the first coil spring 2 becomes the second coil spring. It will be pushed by 3 and will shrink.

Since the first coil spring 2 and the second coil spring 3 are arranged in the internal space of the closed tank 1 forming a rectangular parallelepiped, the strains (1) to (3) described in paragraph [0006] are the first It is possible to prevent the occurrence of the coil spring 2 and the second coil spring 3 .
First, regarding the strain in (1) of paragraph [0006], since the expansion and contraction of the first coil spring 2 and the second coil spring 3 are performed in the internal space of the closed tank 1, the expansion and contraction of the closed tank 1 This means that it does not extend or shrink unnecessarily due to being blocked by the left and right walls and the first partition wall 4 . For example, if the length when extended is 35 cm and the length when contracted is 15 cm, the width is 50 cm. It means that the width (the distance between the left and right walls of the inner wall) should be 53 cm.
Next, regarding the strain of (2) in paragraph [0006], when the first coil spring 2 and the second coil spring 3 are warmed and stretched, the third partition wall 6 As the spring 3 is stretched, it is movable while being lightly rubbed from below and is supported from below. Since the first coil spring 2 or the second coil spring 3 is fitted in the (semicircular groove 63 in FIGS. 6 and 7) and expands and contracts, not only does it not bend downward, but it also bends left and right. does not occur.
Furthermore, regarding the distortion in paragraph [0006] (3), when the first coil spring 2 and the second coil spring 3 expand and contract in the internal space of the closed tank 1, the warm air in the second space R2 and the first space R1 Since the cold air is blocked by the first to third partition walls 4, 5 and 6, mixing of hot air and cold air in the closed tank 1 is extremely rare. Since the ceiling fan 29 rotates vigorously in the first space R1 and the floor fan 28 rotates vigorously in the second space R2, the temperature control of the cold air in the first space R1 and the warm air in the second space R2 is almost perfect. (the cold air in the first space R1 is kept at a temperature equal to or lower than the threshold temperature T, and the warm air in the second space R2 is kept at a temperature equal to or higher than the threshold temperature T), so the first coil spring 2 and the second This means that the two-coil spring 3 expands and contracts with good timing.
Regarding the above-mentioned point, since it is possible for the number of first coil springs 2 and second coil springs 3 to fall within the range of the first to third partition walls 4, 5, 6 of the closed vessel 1, a large number of first coil springs 2 and 3 are possible. This means that the coil spring 2 and the second coil spring 3 can be used simultaneously without the strains (1) to (3).

(About partition wall)
The closed tank 1 of the embodiment includes the above-described first partition wall 4, second partition wall 5, and third partition wall 6 in order to divide the inside of the closed tank 1 into the first space R1 and the second space R2. ing. The first partition wall 4 divides the area inside the sealed tank 1 described above into left and right. The first partition wall 4 stands vertically at an equal position, for example, 11 cm from the upper and lower inner walls inside the closed tank 1, and is 2 cm long and 1 cm wide and 3 cm deep. A projection 4a is provided to fit and slide in the first guide groove 60 of the first coil spring 2 and the second coil spring 3, and move left and right according to the extension deformation and weakening of the first coil spring 2 and the second coil spring 3. As shown in FIG.

The second partition wall 5 moves right above the vertical first partition wall 4 while sliding horizontally without gaps left and right together with the first partition wall 4 (at this time, it contacts the closed tank 1). The surface slides into the second guide grooves 61 on the inner walls of the front and rear walls, for example, by 1 cm or more). The second partition wall 5 is, for example, a plate-like wall with a length (thickness) of 3 cm, a width of 12.2 cm, and a depth of 26 cm. The second partition wall 5 moves, for example, 31.4 cm from the left side to the right side when the contracted left first coil spring 2 extends to the right, and covers the compressed and contracted right second coil spring 3 from above. At the same time, a gap of, for example, 30.4 cm is created above the first coil spring 2 that extends on the left side. On the contrary, when the contracted second coil spring 3 on the right side expands to the left, it moves from the right side to the left side, for example, by 31.4 cm, covers the first coil spring 2 on the left side contracted by compression, and expands. A gap of, for example, 30.4 cm is made above the second coil spring 3 on the right side. Since the second partition wall 5 must move together with the first partition wall 4 , it must be fixed to the first partition wall 4 . The position is fixed to the length of the left and right equidistant with the upper side 3 cm of the first partition wall 4 sandwiched in the middle.

The third partition wall 6 faces the second partition wall 5 from below, and slides horizontally right and left directly below the first partition wall 4 without gaps (at this time, the surface in contact with the closed tank 1 is the front side). It fits into the third guide groove 62 on the inner wall of the wall and the rear wall by 1 cm or more and slides). The third partition wall 6 is, for example, a plate-like wall with a length (thickness) of 3 cm, a width of 39 cm, and a depth of 26 cm. When the contracted first coil spring 2 on the left side of the first partition wall 4 extends to the right, the third partition wall 6 moves from right to left by 4.6 cm while rubbing under the first coil spring 2 extending to the right. While covering the first coil spring 2 on the left that has been stretched out from below, a gap of, for example, 3.6 cm is made under the second coil spring 3 that has contracted (weakened) on the right. Conversely, when the contracted second coil spring 3 on the right side extends to the left, the third partition wall 6 moves, for example, 4.6 cm from the left side to the right side, and the contracted second coil spring 3 on the right side is completely expanded. Similarly, it is covered from below, and a gap of, for example, 3.6 cm is made under the contracted (weakened) first coil spring 2 on the left side.

(Regarding the spring distortion preventing groove 63)
Spring distortion preventing grooves 63 are provided on the upper surface of the third partition wall 6 at positions facing the first coil springs 2 and the second coil springs 3, as shown in FIG. The spring distortion prevention groove 63 extends in the longitudinal direction of the first coil spring 2 and the second coil spring 3 and is recessed downward in a semicircular shape. The spring distortion prevention groove 63 is formed so that the first coil spring 2 and the second coil spring 3 are stretched when the first coil spring 2 and the second coil spring 3 are stretched (the state shown in FIG. 7A). It is provided so as to be slidable from below intersecting the direction. When the first coil spring 2 is stretched, a part of the lower portion of the first coil spring 2 is fitted in the spring distortion preventing groove 63, and when the second coil spring 3 is stretched, the second A part of the lower portion of the coil spring 3 is fitted in the spring distortion preventing groove 63 . This can prevent the distortion (2) described in paragraph [0006] from occurring. An aluminum alloy thin plate 64 is provided on the concave surface of the spring distortion prevention groove 63 , and the first coil spring 2 and the second coil spring 3 expand and contract while contacting this thin plate 64 .

The first partition wall 4, the second partition wall 5, and the third partition wall 6 are all partition walls that move simultaneously based on the power generated when the first coil spring 2 and the second coil spring 3 expand and contract. However, in order for this to move accurately, the mechanism shown in FIG. 5 is required. The drawing in the upper part (a) of FIG. 5 shows the state in which the first partition wall 4 moves from left to right. Sometimes the second partition 5 also moves from left to right by 31.4 cm, but the third partition 6 can only move from right to left by 4.6 cm. The difference is 26.8 cm. Therefore, the string I that forms the loop must have slack of 26.8 cm. As shown in the lower part (b) of FIG. 5, the same method is used when the second coil spring 3 extends from right to left.

Next, a mechanism for moving the first partition wall 4, the second partition wall 5, and the third partition wall 6 in opposite directions will be described. Here, since the first partition wall 4 and the second partition wall 5 stick together and move in the same direction at the same time, the illustration of the second partition wall 5 is omitted. In the upper part (a) of FIG. 5, the midpoint of the depth of the first partition wall 4 is A at a height of 1 cm from the bottom of the left side of the wall, and D at the opposite position (for example, 1 cm from the bottom). height), and the middle point of the depth of the third partition wall 6 is also set to the left and right of the wall at a height of, for example, 1 cm from the bottom of the wall. Form a loop string. At this time, A and D are fixed at points, and mini rollers are installed at B and C. Then, when the first partition wall 4 tries to move from left to right by 31.4 cm, the third partition wall 6 is pulled by the movement of the fixed point A of the string I, and moves from right to left in the opposite direction by 4.4 cm. An attempt to move 6 cm is shown in FIG. 5(a).

Next, the lower part (b) of FIG. 5 shows the state when the first partition wall 4 is about to move from right to left. When trying to move 4 cm, the third partition wall 6 is pulled by the movement of the fixed point D of the string I and tries to move 4.6 cm in the opposite direction from left to right. When the second coil spring 3 extends from right to left by 31.4 cm, the first partition wall 4 and second partition wall 5 also move from right to left by 31.4 cm. At this time, the horizontal length of the third partition wall 6 is 39 cm, and it can move only 4.6 cm from left to right. This is due to the size of the third partition wall 6 . When the second coil spring 3 is stretched to the maximum, the third partition wall 6 needs to block the heat from below, so it is necessary to cover it from below according to the length of the expansion. It has become. This is the same when the first coil spring 2 is stretched to the maximum.

When the first coil spring 2 and the second coil spring 3 expand and contract, the air temperature in the second space R2 inside the rectangular parallelepiped closed tank 1 is always equal to or higher than a predetermined threshold temperature T. Since the air temperature in the first space R1 inside the tank 1 must always be kept lower than the predetermined threshold temperature T, the closed tank 1 must be sealed. Moreover, since it is desirable that the air in the first space R1 and the air in the second space R2 do not leak into the other space, the wall separating the two spaces R1 and R2 must also ensure airtightness. In addition, the first partition wall 4, the second partition wall 5, and the third partition wall 6 move according to the expansion and contraction of the first coil spring 2 and the second coil spring 3, and the first coil spring 2 and the second coil Three walls are required due to the need to heat and cool the spring 3 efficiently. That is, in the power generator CU of the embodiment, the first space R1 of the closed tank 1 is maintained at a temperature below the threshold temperature T by the ultra-small high-performance cooler (first temperature control means) 9 and the ceiling fan 29. The second space R2 is maintained at a temperature equal to or higher than the threshold temperature T by a small high-performance electric heater (second temperature control means) 8 and a floor fan . When the first partition wall 4 is moved to one side (left side) in the closed tank 1 (the state in the upper part (a) of FIG. 5), the stretched and deformed second coil spring 3 is positioned in the first space R1. At the same time, the weakened and compressed first coil spring 2 is positioned in the second space R2. As a result, the second coil spring 3, which has reached a temperature equal to or higher than the threshold temperature T and is stretched and deformed, is immediately cooled to below the threshold temperature T by being positioned in the cold first space R1, thereby being weakened and compressed. It will be in a state where it can be shrunk. On the other hand, the first coil spring 2, which has been weakened by being cooled below the threshold temperature T and contracted by being compressed, is immediately warmed to the threshold temperature T or more by being positioned in the warm second space R2, thereby being stretched and deformed. become.

When the first partition wall 4 moves to the other side (right side) of the closed tank 1 (the state shown in the lower part (b) of FIG. 5), the stretched and deformed first coil spring 2 is positioned in the first space R1. As a result, the first coil spring 2, which has reached a temperature equal to or higher than the threshold temperature T and is stretched and deformed, is immediately cooled to below the threshold temperature T by being positioned in the cold first space R1, thereby being weakened and compressed. It will be in a state where it can be shrunk. On the other hand, the second coil spring 3, which has been weakened by being cooled below the threshold temperature T and contracted by being compressed, is immediately warmed to the threshold temperature T or more by being positioned in the warm second space R2, thereby being stretched and deformed. become.

Therefore, the switching of the first coil spring 2 from the stretched deformation state to the weakened state and the switching from the weakened state to the stretched deformation state are continuously repeated, and the second coil spring 3 changes from the weakened state to the stretched deformation state. Switching and switching from the elongated deformation state to the weakened state are continuously repeated. As a result, the first partition wall 4 reciprocates between the upper position (a) in FIG. 5 and the lower position (b) in FIG.

(Regarding temperature adjustment)
Next, the electric heater (second temperature adjusting means) 8 that warms the air in the second space R2 of the closed tank 1 and the cooler (first temperature adjusting means) 9 that cools the air in the first space R1 will be described. . First, the electric heater 8 is attached to the central portion of the top surface (inner surface) of the lower wall of the closed tank 1 and positioned within the second space R2. The electric heater 8 is a heater that automatically maintains the set temperature when the temperature is set. The electric heater 8 constantly heats the second space R2 (the closed space formed by the bottom inner wall of the closed tank 1 and the three walls of the first to third partition walls 4, 5 and 6). The switches of the floor fan 28 and the electric heater 8 are always turned on (this is a state in which warm air is always blowing in the second space R2). A temperature sensor (not shown) for detecting the temperature in the second space R2 is installed in the closed tank 1, and the operation of the electric heater 8 is controlled based on the temperature detected by this temperature sensor.

The cooler 9 is attached to the central portion of the lower surface (inner surface) of the upper wall of the closed tank 1 and positioned within the first space R1. The cooler 9 is a cooler that automatically maintains the set temperature when the temperature is set. The cooler 9 always cools the first space R1 (the closed space formed by the inner wall of the ceiling of the closed tank 1 and the three walls of the first to third partition walls 4, 5 and 6). The switches of the ceiling fan 29 and the cooler 9 are always turned on (this is a state in which cool air is always blowing in the first space R1). A temperature sensor (not shown) for detecting the temperature in the first space R1 is installed in the closed tank 1, and the operation of the cooler 9 is controlled based on the temperature detected by this temperature sensor.

(Regarding round-trip transportation)
Next, the loop belt 16, which is a reciprocating means, will be described. As can be seen from FIG. 1, the loop belt 16 is a belt in which a chain belt 15 and ordinary belts 14 (14A, 14B) connected to both ends of the chain belt 15 are integrated. In the loop belt 16, the normal belts 14A and 14B are wound around the loop rollers 11 and 13, and the one (left) normal belt 14A passes through a hole provided in the left wall of the closed tank 1 to reach the closed tank 1. The normal belt 14B on the other side (right side) enters the closed chamber 1 through a hole provided in the right wall of the closed chamber 1 and enters the closed chamber 1 to the left side of the first partition wall 4. Connected to the right side to form a loop. The normal belts 14A, 14B of the loop belt 16 are arranged in parallel with the first and second coil springs 2, 3 with the first partition wall 4 interposed therebetween. Install in the center. The loop belt 16 attached to the first partition wall 4 in this way is adapted to the continuous reciprocating movement of the first partition wall 4 in the left-right direction due to the expansion and contraction deformation of the first coil spring 2 and the second coil spring 3. to continue moving left and right.

1, the normal belt 14A of the loop belt 16 fixed to the left side of the first partition wall 4 is inserted into the hole in the left wall of the closed tank 1 ) and is wound around the loop roller 13 installed on the outside of the left wall of the closed tank 1 . In addition, the normal belt 14B of the loop belt 16 fixed to the right side of the first partition wall 4 is inserted into the hole in the right wall of the closed tank 1 (the position is the same horizontal position as the attachment position to the facing first partition wall 4). ) and is wound around a loop roller 11 installed on the outside of the right wall of the closed tank 1 . The chain-shaped belt 15 connected to the normal belts 14A and 14B pulled out to the outside of the closed tank 1 is connected to the rotor rotating shaft 23 and connected to the first rotating body 41 of the rotation transmission mechanism 17 installed. It meshes in a curved manner with the teeth on the outer periphery.

That is, when the first coil spring 2 is deformed to extend and the second coil spring 3 is weakened, compressed and contracted, and the first partition wall 4 moves to the right, the ordinary belt 14A of the loop belt 16 is stretched. Pulled to the right, the chain belt 15 moves counterclockwise (leftward movement) in FIG. Further, when the first partition wall 4 moves to the left because the second coil spring 3 is deformed to extend and the first coil spring 2 is weakened, compressed and contracted, the normal belt 14B of the loop belt 16 is Pulled to the left, the chain belt 15 moves clockwise (rightward movement) in FIG. Therefore, by alternately executing the elongation deformation of the first coil spring 2 and the weakening of the second coil spring 3 and the weakening of the first coil spring 2 and the elongation deformation of the second coil spring 3, the first partition The wall 4 continues to reciprocate and the loop belt 16 alternately and continuously repeats leftward movement and rightward movement.

(Regarding the rotation transmission mechanism)
As shown in FIGS. 4 and 3, the rotation transmission mechanism 17 is rotatably provided on the rotor rotating shaft 23, and alternately rotates in the forward rotation direction and the reverse rotation direction opposite to the forward rotation direction by the loop belt 16 functioning as a driving means. a first rotating body 41 that rotates, a second rotating body 48 fixed to the rotor rotating shaft 23 along with the first rotating body 41 and provided with a protruding claw portion 47 and a rack gear 43 on the outer peripheral portion; A lever 42 which is rotatably provided on a fulcrum shaft 49 fixed to a body 41 and can be hooked on a projecting claw 47 of a second rotating body 48, and which is rotatably provided on the lever 42 and can mesh with a rack gear 43. A pinion gear 44 is provided. The lever 42 is always pushed by a torsion spring (biasing means) 50 so as to be hooked on the projecting claw portion 47 of the rack gear 43 or mesh with the rack gear 43 . When the first rotating body 41 rotates in the forward direction, the pinion gear 44 is caught by the protruding claw portion 47, so that the second rotating body 48 and the rotor rotating shaft 23 rotate in the same forward rotating direction as the first rotating body 41. . On the other hand, when the first rotating body 41 rotates in the reverse direction, the pinion gear 44 meshing with the rack gear 43 rotates, and the rotation of the pinion gear 44 causes the second rotating body 48 and the rotor rotating shaft 23 to rotate in the forward direction. . That is, the first rotating body 41 alternately rotates in the forward rotation direction and the reverse rotation direction, but the second rotating body 48 and the rotor rotating shaft 23 are configured to always rotate continuously in one forward rotation direction. .

As shown in FIG. 3, the rotation transmission mechanism 17 rotates the rotor rotating shaft (rotating shaft) 23 in one direction when the reciprocating means 16 moves in the first direction (FIG. 3(a)). A transmission means 42 and a second rotation transmission means 44 for rotating the rotating shaft 23 in the same direction when the reciprocating means 16 moves in the second direction opposite to the first direction (FIG. 3(b)). Prepare. In the following description of the rotation transmission mechanism 17, in FIG. 3, left rotation of the first rotating body 41 and the second rotating body 48 is defined as forward rotation, and right rotation is defined as reverse rotation.

A plurality of protruding claws 47 are provided at predetermined intervals in the circumferential direction about the rotor rotating shaft 23 on the outer peripheral portion of the second rotating body 48, and rack gears 43 are provided between the protruding claws 47. there is A plurality of levers 42 provided with pinion gears 44 are provided on the first rotating body 41 so as to surround the second rotating body 48 . Therefore, when the first rotating body 41 rotates forward, each pinion gear 44 is caught by the projecting claw portion 47, and when the first rotating body 41 rotates reversely, each pinion gear 44 meshes with each rack gear 43 sequentially. They rotate simultaneously and continuously, and the rotational inertia force generated when each pinion gear 44 rotates causes the second rotor 48 to rotate in the normal direction. A detailed description will be given below.

(Regarding the first rotor 41)
As shown in FIG. 4(a), the first rotating body 41 is formed in a disc shape, and a hole 46 through which the rotor rotating shaft 23 is inserted is formed through the center in the thickness direction. It is The first rotating body 41 is attached to the rotor rotating shaft 23 by inserting the rotor rotating shaft 23 through the hole 46. Before attaching the first rotating body 41, as shown in FIG. By attaching and fixing a bearing 70 to the rotor rotating shaft 23 in contact with the second rotating body 48 fixed to the rotor rotating shaft 23 and attaching the first rotating body 41 on the bearing bearing 70, the rotor rotating shaft 23 is freely rotatable. That is, the first rotating body 41 can smoothly rotate in the forward or reverse direction regardless of the rotation direction of the rotor rotating shaft 23 . Further, teeth 40 with which the chain belt 15 of the loop belt 16 meshes are formed on the outer periphery of the first rotating body 41 over the entire circumference, and the first rotating body 41 is a so-called sprocket. A plurality of (three in the embodiment) fulcrum shafts 49 are provided on the end surface of the first rotating body 41 at predetermined intervals in the circumferential direction on the side surface of the circumference having a predetermined diameter centered on the hole 46 . It is A lever 42 is attached to the fulcrum shaft 49 so as to be able to swing.

(About lever 42)
As shown in FIG. 2, each lever 42 swingably attached to three fulcrum shafts 49 provided on the end surface of the first rotating body 41 is of a seesaw type formed substantially in the shape of the letter "F". A hole through which the fulcrum shaft 49 is inserted is formed through the bent portion located in the middle portion in the longitudinal direction in the thickness direction. The lever 42 is attached to the fulcrum shaft 49 by inserting the fulcrum shaft 49 through the hole, and the tip 42a on one side and the tip 42b on the other side are moved toward and away from the outer edge of the second rotating body 48. Posture is displaced to That is, when one tip 42a of the lever 42 approaches the outer edge of the second rotating body 48, the other tip 42b moves away from the outer edge of the second rotating body 48, and the other tip 42b moves to the second tip 42b. When approaching the outer edge of the rotating body 48 , one tip 42 a swings away from the outer edge of the second rotating body 48 . Pinion gears 44, 44 are rotatably attached to one end portion 42a and the other end portion 42b of the lever 42, respectively. That is, two pinion gears 44 , 44 are attached to one lever 42 .

(Regarding torsion spring 50)
A torsion spring 50 is attached to each fulcrum shaft 49 as a biasing means. The torsion spring 50 has an annular portion mounted on the fulcrum shaft 49 and two legs extending from the annular portion. The tip of the leg is fixed to the lever 42 . The other leg portion of the torsion spring 50 fixed to the lever 42 always pushes the lever 42 in a direction in which the tip portion 42a of one side of the lever 42 approaches the outer edge portion of the second rotating body 48. there is Therefore, when the lever 42 swings, at least one pinion gear 44 out of the pinion gears 44, 44 attached to the lever 42 comes into contact with the projecting claw portion 47 of the second rotor 48 or the rack gear 43. there is Here, when the pinion gear 44 of the lever 42 is positioned on the projecting claw portion 47 provided on the outer edge of the second rotating body 48, the pushing force of the torsion spring 50 is applied to one tip of the lever 42. The strength is set to allow the position of the lever 42 to be displaced such that the portion 42a side is away from the outer edge of the second rotating body 48 and the other tip portion 42b side approaches the outer edge of the second rotating body 48. .

(About pinion gear 44)
Each of the pinion gears 44, 44 attached to one end portion 42a and the other end portion 42b of each lever 42 has teeth of the same module as the teeth of the rack gear 43 provided on the second rotating body 48. , so that it can mesh with the rack gear 43 . Since each pinion gear 44 is desired to rotate at a high speed, a small diameter one having a diameter of, for example, 10 mm to 20 mm is adopted. Further, each pinion gear 44 is made of a material having a large specific gravity, so that the rotational inertia force increases according to the rotational speed. Here, each pinion gear 44 is desirably made of ferrous metal such as steel, alloy steel, carbon steel, or cast iron.

(Regarding the second rotating body 48)
As shown in FIG. 4, the second rotating body 48 is formed in a plate-like shape having approximately the same thickness as the first rotating body 41, and has a hole 46 at its center through which the rotor rotating shaft 23 is inserted. It is formed so as to penetrate in the thickness direction. The second rotating body 48 is fixed to the rotor rotating shaft 23 by inserting the rotor rotating shaft 23 through the hole 46 , and is not freely rotatable with respect to the rotor rotating shaft 23 . That is, the second rotating body 48 always rotates in the normal direction integrally with the rotor rotating shaft 23 . A plurality of (nine in the embodiment) protruding claws 47 are provided at equal intervals in the circumferential direction on the outer peripheral portion of the second rotating body 48, and the portions between the protruding claws 47 are relatively It is a concave curved portion that is concave in the radial direction. Each concave curved portion positioned between the protruding claw portions 47 has a concave portion 51 formed on one (forward rotation direction) protruding claw portion 47 side, and the other (reverse rotation direction) protruding claw portion 47 side is formed with a concave portion 51. It has a gentle concave curve.

(Regarding the concave portion 51)
A pinion gear 44 provided on one end portion 42a of the lever 42 can be fitted into each recess 51, as shown in FIG. Further, the pinion gear 44 provided on the other tip portion 42b of the lever 42 is not fitted into each recess 51. As shown in FIG. As can be seen from FIG. 2, each recess 51 has an arcuate undercut shape that opens toward the reverse rotation direction of the second rotor 48 and recesses toward the forward rotation direction of the second rotor 48 . . Each concave portion 51 is formed in a shape and size that allows a pinion gear 44 provided on one end portion 42a of a lever 42 provided on the first rotating body 41 to fit therein. As a result, when the first rotating body 41 rotates in the forward direction relative to the second rotating body 48, the pinion gear 44 provided at one end portion 42a of the lever 42 moves into the concave portion 51. It moves toward and comes to fit in this recessed part 51. As shown in FIG. When the pinion gear 44 is fitted in the recess 51 (FIG. 3A), the rotation of the first rotor 41 in the forward direction is faster than the rotation of the second rotor 48 in the forward direction. It is possible to rotate the second rotating body 48 and the first rotating body 41 in the normal rotation direction in synchronization with each other. Further, when the first rotating body 41 rotates in the reverse direction relative to the second rotating body 48 in a state where the pinion gear 44 is fitted in the recess 51, the pinion gear 44 rotates from the recess 51 in the reverse direction. As a result, the first rotating body 41 can be rotated in the reverse direction.

(Regarding the rack gear 43)
Each rack gear 43 has the same tooth row as the module of the pinion gear 44 provided on each lever 42, and the pinion gear 44 can mesh with it. The rack gear 43 is formed in a concave curved portion between the protruding claw portions 47 on the outer peripheral surface of the second rotating body 48 . Therefore, as shown in FIG. 2, the relative positional relationship between the first rotating body 41 and the second rotating body 48 allows the pinion gear 44 provided at one end portion 42a of the lever 42 to move toward the second rotating body 48. When meshing with the rack gear 43 , the pinion gear 44 provided at the other tip portion 42 b is separated from the second rotating body 48 . Then, when the pinion gear 44 provided on one tip portion 42a of the lever 42 is positioned at the projecting claw portion 47 of the second rotating body 48, the posture of the lever 42 is displaced and the pinion gear 44 provided on the other tip portion 42b is displaced. Then, the pinion gear 44 approaches the second rotating body 48 and meshes with the rack gear 43 . Further, when the pinion gear 44 provided on the other tip portion 42b of the lever 42 is positioned at the projecting claw portion 47 of the second rotating body 48, the posture of the lever 42 is displaced and the pinion gear 44 provided on the one tip portion 42a Then, the pinion gear 44 approaches the second rotating body 48 and meshes with the rack gear 43 . When the first rotating body 41 rotates in the reverse direction (right rotation) relative to the second rotating body 48 while meshing with the rack gear 43, each pinion gear 44 rotates to the right in FIG. It will rotate to the right.

(Regarding application of rotational force to the forward rotation direction of the second rotating body 48 by the pinion gear 44)
Since each pinion gear 44 is made of a material having a large specific gravity, as described above, rotational inertia force is generated when the pinion gear 44 rotates clockwise at high speed in FIG. 3(b). Each pinion gear 44, which has generated a rotational inertia force by rotating clockwise at high speed, generates a force that kicks out the teeth of the meshing rack gear 43. - 特許庁That is, each pinion gear 44 kicks out the rack gear 43, so that the second rotating body 48 is imparted with forward rotation (counterclockwise rotation). In other words, when the first rotating body 41 rotates in the reverse direction (right rotation) with respect to the second rotating body 48, each pinion gear 44 receives a force that kicks the tooth of each pinion gear 44 against the tooth of the rack gear 43. Since it is generated, the second rotating body 48 can be rotated in the forward direction (counterclockwise rotation).

In the rotation transmission mechanism 17 configured as described above, the first rotating body 41 rotatably provided on the rotor rotating shaft 23 and the second rotating body 48 fixed to the rotor rotating shaft 23 are connected to the rotor rotating shaft. 23 are aligned in the axial direction and adjacent to each other. The first rotating body 41 alternately and continuously rotates forward and backward with respect to the rotor rotating shaft 23 in conjunction with the leftward movement and rightward movement of the chain belt 15 of the loop belt 16 . do.

(When the first rotating body 41 rotates in the normal direction)
In the rotation transmission mechanism 17 having such a configuration, as shown in FIG. 3A, when the chain-shaped belt 15 of the loop belt 16 moves leftward, the first rotating body 41 rotates in the normal rotation direction ( Leftward rotation), and the pinion gear 44 provided at one end 42 a of each lever 42 pushed by the torsion spring 50 fits into the recess 51 of the second rotating body 48 . The pinion gear 44 fitted in the recess 51 cannot get out of the recess 51 while the first rotating body 41 rotates in the normal direction. As a result, the second rotating body 48 is pushed by the first rotating body 41 rotating in the forward direction, and rotates in the forward rotating direction at the same rotational speed synchronously, and the second rotating body 48 is fixed. The rotor rotating shaft 23, which is in contact, rotates continuously in one direction (forward rotation direction).

(When the first rotating body 41 rotates in the reverse direction)
On the other hand, in the rotation transmission mechanism 17, as shown in FIG. 3B, when the chain belt 15 of the loop belt 16 moves rightward, the first rotating body 41 rotates in the reverse direction (rotates rightward). As a result, the pinion gear 44 provided at one end 42 a of each lever 42 pushed by the torsion spring 50 meshes with the rack gear 43 of the second rotor 48 . Then, the first rotating body 41 rotates in the reverse direction (right rotation) relative to the second rotating body 48, so that each pinion gear 44 meshing with the rack gear 43 rotates right at high speed. The rack gear 43 is kicked out by each pinion gear 44 rotating at high speed. Further, when the pinion gear 44 provided at one end portion 42a of the lever 42 is positioned at the projecting claw portion 47 in the process of rotating the first rotating body 41 in the reverse direction relative to the second rotating body 48, As the posture of the lever 42 is displaced, the pinion gear 44 provided at the other tip portion 42b meshes with the rack gear 43 and rotates at high speed. As a result, the second rotating body 48 formed with the rack gear 43 rotates in the normal direction due to the rotational inertia of the pinion gears 44, 44, and rotates the rotor to which the second rotating body 48 is fixed. The shaft 23 continuously rotates in one direction (normal direction).

Thus, in the rotation transmission mechanism 17 of the embodiment, when the first rotating body 41 rotates in the forward direction, the second rotating body 48 continuously rotates in the forward rotating direction, and the first rotating body 41 rotates in the forward direction. Even when rotating in the reverse direction, the second rotating body 48 continues to rotate in the forward direction, and the rotor rotating shaft 23 to which the second rotating body 48 is fixed always rotates in one direction in the forward direction. Rotate continuously (continuously). That is, even if the first rotating body 41 alternately rotates in the forward and reverse directions, the second rotating body 48 always rotates continuously in one forward direction, and the rotor rotating shaft 23 also rotates. Continuous power generation of the power generator 20 can be achieved by continuously rotating in one forward direction.

(Regarding the generator 20)
As the generator 20, a known one that has already been put into practical use is used, and detailed description thereof is omitted here. The generator 20, as shown in FIG. and a coil layer 19 placed thereon. This structure is the same as a magneto-generator of a bicycle. When the rotor 21, which is the magnet layer, rotates, electricity is generated in the coil layer 19 surrounding it.

Action of the embodiment

How the power generator CU of the embodiment configured as described above actually operates to realize power generation will be described.

The power generator CU is, for example, in the state shown in FIG. 5A in the initial state (non-operating state). That is, the first coil spring 2 is contracted and the second coil spring 3 is expanded. As a result, the first partition wall 4 is stopped at a position close to the left wall of the closed tank 1, and the second partition wall 5 is stopped at a position in contact with the left wall. Also, the third partition wall 6 stops at a position in contact with the right wall. The expanded second coil spring 3 is positioned in the first space R1 of the closed vessel 1, and the contracted first coil spring 2 is positioned in the second space R2. In the initial state, both the interior of the first space R1 and the interior of the second space R2 are maintained at a temperature lower than the threshold temperature T, the second coil spring 3 is weakened while being stretched, and the first coil The spring 2 remains compressed and weakened, and the first coil spring 2 and the second coil spring 3 do not generate a force to extend.

When the main switch (not shown) of the generator CU, which is stopped in the initial state, is turned ON, the electric heater 8, the cooler 9, the floor fan 28, and the ceiling fan 29 are powered from the precharged storage battery 27. is supplied with electricity. As a result, the air in the first space R<b>1 of the closed tank 1 is convected by the ceiling fan 29 and gradually cooled by the cooler 9 . Then, the air in the first space R1 becomes cold air cooled to a temperature lower than the threshold temperature T after the required time, and the entire first space R1 is maintained at a temperature lower than the threshold temperature T. On the other hand, the air in the second space R<b>2 of the closed tank 1 is convected by the floor fan 28 and gradually warmed by the electric heater 8 . Then, the air in the second space R2 becomes warm air heated to a temperature equal to or higher than the threshold temperature T after the required time, and the entire second space R2 is maintained at the temperature equal to or higher than the threshold temperature T.

By cooling the inside of the first space R1 in the closed tank 1 to a temperature below the threshold temperature T, the second coil spring 3 positioned inside the expanded first space R1 is cooled to a temperature below the threshold temperature T. It remains in a weakened state with no stretching force. On the other hand, since the inside of the second space R2 in the closed chamber 1 is heated to a temperature equal to or higher than the threshold temperature T, the first coil spring 2, which has been contracted and weakened and has been positioned in the second space R2, has reached the threshold temperature. Since it is heated to a temperature of T or higher, an elongating force is generated.

As a result, the second coil spring 3 is weakened and can be compressed, so that the first coil spring 2 can be extended, and the extension deformation of the first coil spring 2 and the extension deformation of the second coil spring 3 accompanying this can be achieved. The compression deformation pushes the first partition wall 4 and the second partition wall 5 rightward, and the first partition wall 4 and the second partition wall 5 move rightward along the first and second guide grooves 60 and 61. slide to move.

As the first partition wall 4 and the second partition wall 5 slide rightward along the guide grooves 60 and 61, the third partition wall 6 remains in the sealed tank 1 until the string I described above that forms the loop is stretched. stopped in contact with the right wall of After the string I is stretched, the third partition wall 6 moves leftward along the third guide groove 62 . At the timing when the second partition wall 5 contacts the right wall of the closed tank 1, the first partition wall 4 and the second partition wall 5 stop, and the third partition wall 6 contacts the left wall of the closed tank 1. stop when the time is right. As a result, the state of partitioning the first space R1 and the second space R2 by the first to third partition walls 4, 5, 6 is substantially maintained.

When the second partition wall 5 hits the right wall of the closed chamber 1 and the third partition wall 6 hits the left wall of the closed chamber 1 (Fig. 5(b)), it is heated to a temperature equal to or higher than the threshold temperature T. Since the first coil spring 2 is positioned in the first space R1 cooled to a temperature lower than the threshold temperature T, it is rapidly cooled to a temperature lower than the threshold temperature T and weakened. On the other hand, the second coil spring 3, which has been cooled to a temperature lower than the threshold temperature T, is positioned in the second space R2 warmed to a temperature equal to or higher than the threshold temperature T. It heats up quickly and begins to generate stretching forces.

As a result, the first coil spring 2 is weakened and can be contracted, so that the second coil spring 3 can be extended, and the extension deformation of the second coil spring 3 and the deformation of the first coil spring 2 accompanying this can be achieved. The compression deformation pushes the first partition wall 4 and the second partition wall 5 leftward, and the first partition wall 4 and the second partition wall 5 move leftward along the first and second guide grooves 60 and 61. slide to move.

As the first partition wall 4 and the second partition wall 5 slide leftward along the guide grooves 60 and 61, the third partition wall 6 remains in the sealed tank 1 until the string I described above that forms the loop is stretched. stopped in contact with the left wall of After the string I is stretched, the third partition wall 6 moves rightward along the third guide groove 62 . Then, at the timing when the second partition wall 5 contacts the left wall of the closed tank 1, the first partition wall 4 and the second partition wall 5 stop, and the third partition wall 6 contacts the right wall of the closed tank 1. stop when the time is right. As a result, the state of partitioning the first space R1 and the second space R2 by the first to third partition walls 4, 5, 6 is substantially maintained.

Therefore, in the power generator CU of the embodiment, by maintaining the inside of the first space R1 of the closed tank 1 at a temperature lower than the threshold temperature T and the inside of the second space R2 at a temperature equal to or higher than the threshold temperature T, The elongation deformation of the first coil spring 2 and the compression deformation of the second coil spring 3 and the elongation deformation of the second coil spring 3 and the compression deformation of the first coil spring 2 continuously occur alternately, As a result, the first partition wall 4 and the second partition wall 5 are alternately and continuously reciprocated in the lateral direction within the closed tank 1 .

In addition, since the lower portions of the first coil spring 2 and the second coil spring 3 are substantially fitted in the corresponding spring strain preventing grooves 63, 63 on the lower side when the first coil spring 2 and the second coil spring 3 are elongated and contracted, these The intermediate portions of the coil springs 2 and 3 are restricted from bending downward, forward, and rearward, which intersects the direction of expansion and contraction. Therefore, the first coil spring 2 and the second coil spring 3 are expanded and contracted while the strain (2) described in paragraph [0006] is restricted.

As the first partition wall 4 reciprocates and slides in the horizontal direction due to the alternate expansion and contraction deformation of the first coil spring 2 and the second coil spring 3, it is connected to the first partition wall 4 and wound around the loop rollers 11 and 13. The looped belt 16 moves counterclockwise and clockwise, and the chain-like belt 15 alternately and continuously repeats leftward movement and rightward movement. That is, when the first partition wall 4 slides rightward inside the closed tank 1 , the loop belt 16 moves counterclockwise (leftward movement), and the first partition wall 4 moves leftward inside the closed tank 1 . When sliding to the right, the loop belt 16 moves clockwise (moves to the right).

As the chain-shaped belt 15 of the loop belt 16 moves leftward and rightward, the first rotating body 41 around which the loop belt 16 is wound in the rotation transmission mechanism 17 provided on the rotor rotating shaft 23 of the generator 20. , alternately and continuously repeats rotation in the forward direction and in the reverse direction around the rotor rotating shaft 23 . That is, when the loop belt 16 moves counterclockwise, the first rotating body 41 rotates in the forward rotation direction, which is counterclockwise rotation in FIG. The rotating body 41 rotates in the reverse direction, which is the right rotation in FIG. 3(b).

Here, in the rotation transmission mechanism 17, when the first rotating body 41 rotates in the forward direction with the leftward movement of the chain belt 15 of the loop belt 16, each member provided on the first rotating body 41 rotates. A pinion gear 44 provided at one tip portion 42 a of the lever 42 fits into one of the recesses 51 provided in the second rotating body 48 . As a result, the second rotating body 48 is pushed by the first rotating body 41 and rotates in the normal direction at the same rotational speed as the first rotating body 41, and rotates the rotor rotating shaft 23 to which the second rotating body 48 is fixed. Rotate in the forward direction.

On the other hand, when the first rotating body 41 rotates in the reverse direction as the chain belt 15 of the loop belt 16 moves to the right, one end portion 42a of each lever 42 provided on the first rotating body 41 Either the pinion gear 44 provided on the other end portion 42 b or the pinion gear 44 provided on the other end portion 42 b meshes with the rack gear 43 provided on the second rotating body 48 . As the first rotating body 41 rotates in the reverse direction, the second rotating body 48 rotates in the normal direction relative to the first rotating body 41. The meshing pinion gears 44 rotate at high speed to generate rotational inertia. As a result, each rack gear 43 meshing with the pinion gear 44 rotates at high speed to push the second rotating body 48 in the forward direction, so that the second rotating body 48 keeps rotating in the forward direction. It will be done.

That is, in the rotation transmission mechanism 17, the second rotating body 48 rotates in the forward direction both while the first rotating body 41 rotates in the forward direction and while the first rotating body 41 rotates in the reverse direction. Since it continuously rotates (continuously rotates in one direction), the rotor rotating shaft 23 continuously rotates in one direction. Continuous rotation of the rotor rotating shaft 23 in one direction drives the generator 20 continuously to continuously generate power.

A part of the electricity generated by the operation of the generator 20 is supplied to the storage battery 27, and the storage battery 27 is always charged during the operation of the power generator CU. As a result, the electric heater 8, the cooler 9, the floor fan 28, and the ceiling fan 29 are not interrupted in the supply of electricity to the electric heater 8, the cooler 9, the floor fan 28, and the ceiling fan 29 during the operation of the power generator CU. Since the temperature is properly controlled and the first and second coil springs 2 and 3 are alternately and appropriately expanded and deformed, as a result, the generator 20 appropriately generates power continuously.

As described above, the power generator CU of the embodiment maintains the first space R1 of the closed tank 1 at a temperature lower than the threshold temperature T, and maintains the second space R2 at a temperature equal to or higher than the threshold temperature T. Continuous expansion/contraction deformation of the coil spring 2 and the second coil spring 3 occurs, whereby the generator 20 can be continuously operated via the loop-shaped belt 16 and the rotation transmission mechanism 17, so that stable And continuous power generation is possible. In particular, since the temperature of the first coil spring 2 and the second coil spring 3 can be appropriately adjusted, the first partition wall 4 and the loop belt 16 can be appropriately and continuously reciprocated, thereby The generator 20 can be stably and continuously driven. Further, the rotation transmission mechanism 17 can appropriately convert the reciprocating movement of the loop-shaped belt 16 into continuous rotation of the rotor rotating shaft 23 in the same direction. In addition, since the first coil spring 2 and the second coil spring 3 that expand and contract can be prevented from being distorted when deformed, it can be expected that the repeated life of the coil springs 2 and 3 will be extended.

(Change example)
(1) Although specific dimensions and sizes of the closed vessel 1 and the like are shown in the examples, these dimensions and sizes are not limited to these and can be changed as appropriate.
(2) The number of pairs of the first coil springs 2 and the second coil springs 3 is not limited to the two pairs shown in the embodiment, and may be one pair or three or more pairs.
(3) The shape memory alloys forming the coil springs 2 and 3 are not limited to the physical properties illustrated in the embodiments, and shape memory alloys having various physical properties can be used.
(4) The installation mode of the paired first coil spring 2 and the second coil spring 3 is not limited to horizontal. Alternatively, it may be inclined at a required angle.
(5) The rotation transmission mechanism 17 is not limited to the configuration exemplified in the embodiment, and may have any configuration as long as it can convert reciprocating movement into unidirectional rotational movement.
(6) The third partition wall 6 may have a structure in which it is slid by a fluid pressure actuator or motor whose operation is controlled. In this case, the linkage structure by the string I can be omitted.
(7) The reciprocating means 16 is not limited to the loop-shaped belt provided with the chain-shaped belt shown in the embodiment. For example, if the first rotating body 41 of the rotation transmission mechanism 17 is a toothed pulley having a tooth profile on the entire outer periphery, the reciprocating means 16 has a tooth profile that meshes with the tooth profile of the first rotating body 41. It can be a toothed belt formed on the inner circumference.
(8) The reciprocating means 16 is in the form of an elongated rack gear that is not elastically deformable. , and may reciprocate in conjunction with the reciprocating movement of the first partition wall 4 . In this embodiment, the first rotating body 41 of the rotation transmission mechanism 17 is used as a spur gear (spur gear) that meshes with the rack gear of the reciprocating means 16 extending to the outside of the sealing layer 1 , and the first rotating body 41 is used as the reciprocating means 16 . in a form that meshes with the Even in such a form, the reciprocating means 16 reciprocates in conjunction with the reciprocating movement of the first partition wall 4, so that the first rotor 41 of the rotation transmission mechanism 17 rotates forward and backward. Reciprocating rotation is achieved, and the same effect as in the embodiment can be obtained.
(9) The spring distortion prevention groove 63 as the spring distortion prevention portion provided on the upper surface of the third partition wall 6 is not limited to the groove-shaped form illustrated in the drawings and the above embodiments. For example, grooves along the springs are not provided on the upper surface of the third partition wall 6, and two grooves extending in the longitudinal direction of the first coil spring 2 and the second coil spring 3 are provided on both sides of the first coil spring 2 and the second coil spring 3 in the longitudinal direction. A form in which a protrusion is provided may be employed. The spring distortion preventing groove 63 as the spring distortion preventing portion of this modification is formed so as to surround the first coil spring 2 and the second coil spring 3 with the upper surface of the third partition wall 6 and the outer surfaces of the two protrusions. As a result, distortion of these springs 2 and 3 can be prevented.
(10) The generator 20 is not limited to the structure shown in the embodiment, and various known forms can be adopted.
(11) A speed increasing mechanism may be provided between the rotor rotating shaft 23 of the rotation transmission mechanism 17 and the generator 20 so that the rotating speed of the generator 20 is increased more than the rotating speed of the rotor rotating shaft 23. good.

If the power generation device CU can be configured very compactly and can generate power of 10 kw or more, there is a possibility that a dream electric vehicle can be realized by installing this power generation device CU in a car.

1 closed tank 2 first coil spring 3 second coil spring 4 first partition wall 5 second partition wall 6 third partition wall 8 electric heater (second temperature control means)
9 cooler (first temperature control means)
16 loop belt (reciprocating means)
17 rotation transmission mechanism 20 generator 23 rotor rotation shaft (rotation shaft)
41 first rotating body 48 second rotating body CU power generator R1 first space R2 second space T threshold temperature

Claims (3)

A power generator (CU) capable of generating power by driving a rotating shaft (23) of a generator (20),
a first partition wall (4) reciprocably provided in a closed tank (1) having a space formed therein;
One end is fixed to the inner wall of the closed tank (1) and the other end is connected to the first partition wall (4). a first coil spring (2) made of a shape memory alloy that weakens when cooled;
Located opposite to the first coil spring (2) across the first partition wall (4), one end is fixed to the inner wall of the closed tank (1) and the other end is attached to the first partition wall (4). a second coil spring (3) made of a shape memory alloy that is connected and elongated when heated to a predetermined threshold temperature (T) or higher and weakened when cooled to a temperature below the threshold temperature (T);
reciprocating means (16) connected to the first partition wall (4) and reciprocating with the reciprocating movement of the first partition wall (4);
a rotation transmission mechanism (17) in which the reciprocating means (16) and the rotating shaft (23) are linked and converts the reciprocating movement of the reciprocating means (16) into unidirectional rotation of the rotating shaft (23);
Elongation deformation of the first coil spring (2) and weakening of the second coil spring (3) and weakening of the first coil spring (2) and elongation deformation of the second coil spring (3) are alternately executed. As a result, the first partition wall (4) reciprocates, and the reciprocating means (16) reciprocates accordingly. A power generating device characterized in that (23) is configured to continuously rotate in the same direction so that power is generated by the generator (20). A first partition wall (4) slidably provided in the closed tank (1), a second partition wall (5) fixed to the first partition wall (4) and slidably provided, and a closed The bottom surface of the first partition wall (4) slidably provided in the tank (1) and the third partition wall (6) in sliding contact with each other form a first space (R1) and a first space (R1) inside the closed tank (1). It is divided into the second space (R2),
The first space (R1) is maintained at a temperature below the threshold temperature (T) by the first temperature adjustment means (9),
The second space (R2) is maintained at a temperature equal to or higher than the threshold temperature (T) by the second temperature control means (8),
When the first partition wall (4) moves to one side in the closed tank (1), the elongated first coil spring (2) is located in the first space (R1) and is weakened and compressed. The second coil spring (3) is located in the second space (R2),
When the first partition wall (4) moves to the other side of the closed tank (1), the stretched and deformed second coil spring (3) is located in the first space (R1), and the weakened and compressed second coil spring (3) is positioned in the first space (R1). The power generator according to claim 1, wherein one coil spring (2) is arranged to be located in the second space (R2). The rotation transmission mechanism (17) comprises a first rotating body (41) linked to the reciprocating means (16) and a second rotating body (48),
The first rotating body (41) is rotatably attached to the rotating shaft (23),
The second rotating body (48) is directly fixed to the rotating shaft (23) at a position adjacent to the first rotating body (41),
A first transmission means (42) for rotating the rotating shaft (23) in one direction when the reciprocating means (16) moves in the first direction; 3. The power generator according to claim 1 or 2, further comprising a second transmission means (44) for rotating the rotating shaft (23) in the same direction as the first direction when moving in the direction.

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