JPH0647988B2 - Power generator installed in fluid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention places electric gas in a gas such as air or in water such as a river to operate a generator by the fluid energy of the substrate or liquid to generate electric energy. The present invention relates to a power generation device to be obtained.

<< Prior Art >> Since electricity is already generated using wind power, ocean current, etc., as shown in Fig. 5, there is an interior fixed installation of a generator c with a propeller b inside a frame a. It is used by mounting it on d.

However, when the ocean current e is directed orthogonally to the propeller b from the front as shown by the arrow, the propeller b is sufficiently
Can rotate to obtain the desired electric power, but if the direction of the ocean current e changes, the output of the generator will suddenly decrease, and as a result, sufficient electric power cannot be obtained. However, there was a defect that its use was limited by itself.

Therefore, as shown in FIG. 6, a rudder f is attached to the frame a,
It is conceivable that the rotation base g is rotatably supported on the rotation base g so that it can follow the direction change of the ocean current e, but the rotation base g receives a large load including a heavy generator c. In addition, the swinging motion for turning is not smooth, it does not turn in low-speed ocean current, and there is a problem in the durability of the rotating part, and it is a mechanism that rotates the propeller b with a fluid. Therefore, basically, when the flow velocity of the ocean current e is small, there is a defect that the propeller c does not rotate and the electric output becomes zero.

In addition, as disclosed in Japanese Patent Publication No. 59-11754,
Efficient Karman vortices (rather than propellers), with two regular rows of vortices found in the back of the column, with flow in an appropriate velocity range across the column, theorized by Karman in 1911 AD. There has also been proposed a power generation device that can obtain a considerable amount of power even if the flow velocity is small by utilizing it.

However, in the above-mentioned one, a desired number of vortex generators having a special conical shape are attached to the rotation axis, and moreover, the flow direction of a certain angle is specified with respect to the reference axis of the vortex generator. It is intended to generate a rotational force on the above-mentioned rotary shaft by giving a fluid that it has. Therefore, even in this case, if the fluid is diverted, there is a difficulty that it cannot follow this. is doing.

<Problems to be Solved by the Invention> In view of the problems of the above-described conventional example, the present invention provides a configuration in which the starting rod is oscillated by the phenomenon of Karman vortex generation in a fluid, and this power can be effectively used. In addition to reliably converting the energy of the low-speed fluid into electric energy, by properly attaching this starting rod to the transmission rod that rotates over the entire circumference, it is possible to prevent the deflection in the entire flow direction of the fluid. The starting rod of the above is smoothly followed and displaced so that the fluid from any direction can be reciprocally swung which is the reciprocating motion of the starting rod.
Moreover, it is an object to enable efficient power generation even when the fluid is diverted, and to prevent the starting rod from having a special shape.

<< Means for Solving the Problems >> In order to achieve the above-mentioned object, the present invention has a base member formed so that a fluid can flow therethrough, in which a generator is fixed and a rotating part of the generator is rotated. A transmission rod connected so as to transmit a force is rotatably provided vertically, and a supporting arm provided laterally from the transmission rod rotates following the fluid flow direction around the entire circumference of the fluid and By the Karman vortex generated by the above, the starting rod which can be rocked together with the transmission rod is vertically mounted.

WORKING EXAMPLE The present invention will be described in detail with reference to the illustrated working example. As shown in FIG. 1, a base 1 having a prismatic frame body composed of a vertical member and a horizontal member has a structure shown in FIG. Thus, the top plate 2 is laid over, and the generator 3 is mounted on the upper surface of the top plate 2 at the axial center position of the base body 1.

A transmission rod 5 which penetrates through the top plate 2 and has a lower end rotatably supported by the bottom plate 4 is attached to the rotating portion of the generator 3 such as an armature directly or as shown in FIG. It is movably connected via a transmission mechanism to be described later. Therefore, in the embodiment of FIG. 1, the transmission rod 5 is also arranged at the axial center position.

Further, in the illustrated case, the transmission rod 5 is provided with supporting arms 6 and 6 projecting laterally from upper and lower two places, and a starter rod 7 is vertically mounted and fixed to the tip of the supporting arms 6, and in this case, in the illustrated example, By disposing the starting rod 7 in the frame of the base body 1, the starting rod 7 can rotate about the transmission rod 5 over the entire circumference.

In order to use the above-mentioned embodiment, the substrate 1 may be installed on the seabed d as shown in FIG. 1 (a), in which the fluid A flows in from the direction of the arrow shown in FIG. 1 (c). If so, the starting rod 7 follows in the flow direction of the fluid so that the support arms 6 and 6 are pivotally directed downstream to the top plate 2 and the bottom plate 4, and at this time, the right side of the starting rod 7 is concerned. That is, as known, Karman vortices are alternately generated in the back, which causes the starting rod 7 to oscillate by an oscillating motion as indicated by arrows B and B '.

As a result, the transmission rod 5 rotates the armature and the like of the generator 3 by repeatedly swinging the starting rod 7 left and right, whereby an electric output is obtained from the same. Instead, when trying to obtain DC power, it is preferable to incorporate a phase converter (not shown) in the generator 3.

Here, when the swing of the transmission rod 5 is to be transmitted to the rotating portion of the generator 3 as a unidirectional rotary motion by the transmission mechanism without using the phase converter,
A transmission mechanism as shown in FIGS. 4 to 4 can be used.

That is, the rotary gear shaft 3'extended as the rotating portion of the generator 3 is not rotated by the swinging due to the amplitude motion of the starting rod 7 directly, but the main driving gear shaft-mounted on the transmission rod 5 as shown in the figure. 8 includes a first rotary shaft 9 as shown in FIGS.
Meshes with the transmission first gear 10 that is axially fitted so that
A ratchet first gear 11 axially mounted on the coaxial shaft 9 is meshed with the rotary tooth shaft 3 ', and a transmission pin 13 which is vertically erected on the transmission first gear 10 via a spring 12 has a tip portion thereof. Are engaged with the ratchet teeth 14, 14, ... Of the first gear 11 with a ratchet so as to be disengageable.

On the other hand, the main driving gear 8 is the interposing gear 1 axially mounted on the interposing shaft 15.
6 is also meshed, and the same gear 16 is attached to the second rotary shaft 1
7 is meshed with a transmission second gear 18 that is rotatably fitted in the shaft 7, and a ratchet second gear 19 that is coaxially mounted with a ratchet gear shaft 3 ′ is meshed with the transmission second gear 18 by a spring. Transmission pin 2 which is erected and engaged via 20
1, the front end portion is locked to the ratchet teeth 22, 22, ... Of the second gear 19 with a ratchet so as to be disengageable,
At this time, as shown in FIGS. 3 (b) and 4 (b), the ratchet teeth 14, 14, ...

By doing so, when the transmission rod 5 reciprocates and the main driving gear 8 rotates in one direction, this causes the transmission first gear 10 to move.
, The transmission pin 13 moves the ratchet teeth 14, 1
4 ..., and as a result, the first gear 11 with a ratchet rotates, the rotary tooth shaft 3'rotates in one direction. At this time, the rotation of the main driving gear 8 is caused by the intervention shaft. It is also transmitted to the gear 16.

However, in this case, the transmission second rotated by the gear 16
To rotate the gear 18, the transmission pin 21 moves the ratchet teeth 22,
Since the pin 21 is tilted and disengaged to the outside without being locked with 22 ..., It is not transmitted to the second ratchet gear 19, so that the rotation transmission is cut off, and the rotation tooth shaft 3'is not transmitted. Rotational force is applied only in one direction.

Next, when the transmission rod 5 is returned, the transmission system via the transmission first gear 10 does not rotate the ratchet first gear 11 on the contrary, so that the rotational force is not applied to the rotary tooth shaft 3 '. However, due to the transmission system via the intervening gear 16, the rotary tooth shaft 3'receives a rotational force in the same direction as the rotational direction at the time of the forward movement, and in this way, in the end, always rotates in the same direction. An output from the generator 3 is obtained by the force.

<Effects of the Invention> Since the present invention is embodied as in the above-described embodiment and is configured as described above, even if the kinetic energy of a liquid having a low flow velocity is used, the starting rod can be efficiently swung by the Karman vortex. Therefore, not only is it possible to generate electricity even with a minute flow velocity, but since the starting rod can move freely over the entire circumference along the flow direction of the fluid, it follows any change in flow direction, The maximum power generation output is always obtained, and the generator is fixed in a proper place on the base body so that the load does not affect the swing of the starting rod. It is also excellent in points, and it is not necessary to adopt a special shape for the starting rod, so that it can be provided at low cost.

[Brief description of drawings]

FIG. 1 shows an embodiment of a power generator according to the present invention, in which (a) is a front view, (b) is a plan view, and (c) is c of (a).
FIG. 3D is a right side view, FIG. 2 is a plan explanatory view illustrating a transmission mechanism that can be adopted for the device, and FIG.
The figure shows one transmission system of the same transmission mechanism, (a) is a side view thereof, (b) is a cross-sectional view taken along the line bb of (a), and FIG. 4 is another transmission system of the same mechanism. , (A) is an explanatory plan view thereof,
(B) is a cross-sectional view taken along the line bb of (a), FIG. 5 shows a conventional propeller-type generator, (a) is a front view, (b) is a left side view, and FIG. 6 is 5 is a side view showing an improved example of the device. 1 ... Base body 2 ... Top plate 3 ... Generator 4 ... Bottom plate 5 ... Transmission rod 6 ... Support arm 7 ... Starting rod A ... Fluid

Claims (2)

[Claims] 1. A power generator is fixedly mounted on a base body formed so that a fluid can flow therethrough, and a transmission rod connected to the rotating portion of the power generator for transmitting a rotational force is rotatably mounted vertically. A support arm that is provided and laterally installed from the transmission rod is rotated along with the transmission rod by the Karman vortex generated by the fluid, following the rotation of the fluid in the flowing direction over the entire circumference of the fluid. A power generator installed and used in a fluid, characterized in that it is vertically mounted. 2. The structure according to claim 1, wherein the base body is formed of a prismatic frame body, and the transmission rod is provided vertically between the top plate and the bottom plate of the frame body at an axial center position. A power generator installed in a fluid for use.