JPS61195244A - Solar energy utilizing device - Google Patents

Abstract

PURPOSE:To contrive to enable the titled device to follow the diurnal motion by a method wherein a light receiving member is provided on the west side and east side supports via a east/west direction swinging mechanism, while the west side support is supported by a movable member in a liquid tank and a leak valve is provided at an intermediate portion on the liquid moving passage in the liquid tank. CONSTITUTION:An east side support 2 is fixed on a foundation 5, a west side support 3 is supported by a flexible device 6 arranged on the foundation 5. In the flexible device 6, the lower end part of the west side support 3 is held on a float 9 floating on a liquid 8 in a liquid tank 7. In the morning, the liquid 8 is filled in the tank up to the designated level after opening an open/close valve 12, the west side support 3 is made higher than the east side support 2, the inclining angle of a light receiving member 1 is fixed at the designated angle via a hinge 4. Therefore, by opening a leak valve 13, the liquid 8 level is lowered while following the diurnal motion of the sun, then the west side of the light receiving member 1 is gradually lowered, the inclination of the light receiving member 1 is changed gradually form the east side lower inclination to the west side lower inclination. Thus, the light receiving member is enabled to follow the diurnal motion without any consumption of energy, accordingly, the light receiving efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a solar energy utilization device, and more particularly to a device capable of changing the angle of a light-receiving surface in accordance with the diurnal movement of the sun.

[Conventional technology]

There are two types of solar energy utilization devices: fixed types that keep the direction of the light-receiving surface constant regardless of changes in the position of the sun, and tracking types that change the direction of the light-receiving surface in accordance with changes in the position of the sun.

[Problem that the invention seeks to solve]

The above-mentioned fixed type has a simple mechanism but low efficiency, and the tracking type has a high efficiency but has a problem in that it has a complicated mechanism and requires driving energy.

Therefore, it is an object of the present invention to solve these problems and provide a solar energy utilization device that is highly efficient, has a simple mechanism, and consumes less energy.

[Means for solving problems]

In order to solve the above problems, the present invention is designed to change the angle of the light-receiving surface in accordance with the diurnal movement of the sun, and its configuration is such that the west and east columns are oscillated at least in the east-west direction. A light receiving member is attached via a movable rocking mechanism, one of the west side pillar and the east side pillar is supported by a movable member in the liquid tank, and a leak valve is provided in the middle of the liquid movement path in the liquid tank. It is structured as follows.

[For production]

In the solar energy utilization device with the above configuration, when the liquid in the liquid tank is moved in synchronization with the diurnal cycle by appropriately adjusting the restricting condition of the leak valve, the movable member moves and the supported west or east side The pillar becomes relatively low, and the angle of inclination of the light receiving member changes.

(Embodiment) In an embodiment of the present invention, as shown in FIGS. 1 and 2, a plate-shaped light-receiving member 1 such as a solar cell
It is supported by the east side pillar 3 of the book, and each pillar 2
, 3, the light receiving member 1 can swing in the east-west direction.

The above hinge 4 may be replaced with a universal joint.

The above-mentioned west column 2 is fixed on the base 5, and is supported on the east side column 2 by a telescoping device 61 installed on the base 5. The expansion and contraction device 6 fills a liquid tank 7 with a liquid 8 such as water,
A float 9 is placed on top of this, and the lower end of the east support 3 rests on this float 9. The liquid tank 7 is provided with an inlet 10 and an outlet 1) for the liquid 8, a normal on-off valve 12 is attached to the inlet 10, and a leak valve 13 whose opening degree can be adjusted as appropriate is attached to the outlet 1). .

The above device opens the on-off valve 12 at the beginning of -day, fills the liquid 8 to the required level, extends the east support 3 higher than the west support 2, and sets the inclination angle of the light receiving member 1 to the required angle ( (See Figures 1 and 3a). Thereafter, when the leak valve 13 is opened and the level of the liquid 8 is decreased following the diurnal movement of the sun, the east side of the light-receiving category gradually descends and its inclination angle changes. Incidentally, since it is sufficient to fill the liquid 8 to the required level at some time between sunset and sunrise, it may be done automatically in conjunction with a 24-hour timer or the like.

FIG. 4 shows another example of the telescopic device 6, in which a piston 15 is inserted into the cylinder 14, and the piston 15 (thus supporting the east column 3) is installed in the lower chamber of the cylinder 14. 16 is provided with an on-off valve 18 for introducing liquid 8, and an on-off valve 1 for drainage is provided in the upper chamber 17.
9 is provided, and the piston 15 is provided with a leak valve 2o.

In this case, after filling the lower chamber 16 of the cylinder 14 with the liquid 8 and raising the east support 3 to the required height, close the on-off valve 18.
After that, the piston 1 is moved due to the weight of the device acting on the east side support 3.
5 is pressed down, and the liquid 8 in the lower chamber 16 is transferred to the upper chamber 17 through the leak valve 20. The liquid 8 that has moved to the upper chamber 17 is discharged through the on-off valve 19.

Since the structure is such that the liquid 8 is discharged to the above-mentioned expansion and contraction device 6,
As the liquid 8, it is desirable to use an inexpensive liquid such as water. However, piston 15 and cylinder 1
It is necessary to ensure a seal between the four.

The expansion/contraction device 6 shown in FIG.
Both ends of a circulation pipe 21 are connected to 7, a pump 22 is installed in the middle of the pipe 21, and a leak valve 20 is provided on the piston 15. In the figure, 23 is a sealing member.

In the above-mentioned expansion/contraction device 6, the pump 22 has a grease transport capacity that is larger in pressure side than the leakage amount of the leak valve 20.
The piston 15 is operated once between sunset and sunrise to raise the piston 15, which had lowered during the day, to the required height and return it to its original position.
The purpose is to cause the piston 15 to fall using its own weight. If the capacity of the pump 22 is made overwhelmingly larger than the leak capacity of the leak valve 20, the piston 15
There is no need to take the trouble to close the leak valve 20 when lifting the machine, and the mechanism becomes simple. Also, install the leak valve 201 and the stop valve and operate the pump 22 to remove the grease 8 in the chamber 17.
′ is returned to the chamber 16, the grease 8′ leaks into the leak valve 20.
It may be arranged so that the passage does not return from chamber 16 to chamber 17 through the passage.

The expansion and contraction device 6 shown in FIG. 6 is located in the middle of the circulation pipe 21.
A pump 22 and a leak valve 24 are connected in parallel. In this case as well, the pump 22 is used to return the grease 8', and normally the pump 22 is not operated and the piston 1
Let the weight of the device act on 5. Grease 8' passes through the leak valve 24 and moves from the lower chamber 16 to the upper chamber 17. If this is reversed after sunset and before the sun sets, the operation of the pump 22 is the same as in the case of FIG. 5.

〔effect〕

As described above, the present invention has the effect that the inclination angle of the light-receiving member can be made to follow the diurnal movement by appropriately restricting the amount of liquid movement, and that the energy required for liquid movement is relatively small.

In particular, the expansion and contraction device that uses a float as shown in Figure 1, or that uses the weight of the light-receiving member to act on the piston as shown in Figures 4 and 6, is due to the tilting movement of the light-receiving member. This has the effect of eliminating the need for energy consumed in the process.

In addition, compared to conventional solar tracking devices, energy is applied to operate the device only once a day when the pump is operated, so the mechanism of the device is extremely simple, reducing the failure rate and making maintenance easier. , which is preferable in all respects including the cost of the device.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the first embodiment, FIG. 2 is a perspective view of the same as above,
Figures fa) to (C) in Figure 3 are side views showing the operating state over time, and Figures 4 to 6 are sectional views of modified examples of the telescopic device.

Claims (5)

[Claims] (1) A light-receiving member is attached to the west side support and the east side support through a rocking mechanism that can swing at least in the east-west direction, and either the west side support or the east support is supported by a movable member in the liquid tank, and the above-mentioned liquid A solar energy utilization device that includes a leak valve in the middle of the liquid movement path in the tank. (2) The solar energy utilization device according to claim 1, wherein the movable member is a float. (3) The solar energy utilization device according to claim 1, wherein the liquid tank is a cylinder and the movable member is a piston. (4) The solar energy utilization device according to claim 1, wherein the liquid placed in the liquid tank is water. (5) The solar energy utilization device according to claim 1, wherein the liquid placed in the liquid tank is a high viscosity grease.