JP3162841U - Solar water heater - Google Patents

Abstract

Provided is a solar water heater capable of warming water with stable thermal energy by efficiently collecting solar heat. Sunlight is concentrated on a tubular member 22 by a plurality of condensing lenses 230 arranged in parallel. The sensing unit sends sensing information indicating the incident direction of sunlight to the controller. The controller controls the rotation of the turntable 32 by the drive unit and the length of the telescopic rod member 34 based on the sensed information. By rotating the turntable 32 and adjusting the length of the telescopic rod member 34, the tubular member 22 can be set at an appropriate angle with respect to sunlight. [Selection] Figure 1

Description

  The present invention relates to a water heater, and more particularly to a solar water heater.

  A conventional solar water heater is supported on a roof or the like by supporting a solar collecting means by a support frame, and collects solar heat with a light collecting unit provided in the solar collecting means, thereby Can be warmed.

  Since conventional solar water heaters have fixed solar light collecting means, solar light collection efficiency is reduced when sunlight irradiation to the solar light collecting means is weakened, so water cannot be heated efficiently. There is an inconvenience.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a solar water heater that can warm water with stable thermal energy by efficiently collecting solar heat.

  In order to achieve the above object, a solar water heating apparatus of the present invention includes a sunlight collecting means for concentrating sunlight, a support means for supporting the sunlight collecting means so that the posture can be changed, and an attitude of the sunlight collecting means. Control means for controlling the solar light collecting means, and the solar light collecting means is attached to the mounting seat, a tubular member having a hollow portion for circulating water, and is attached to the mounting seat, and concentrates sunlight on the tubular member. A light collecting unit disposed above the tubular member, and the support means includes a hollow base having an upper surface on the solar light collecting means side and a lower surface on the opposite side of the upper surface. A rotating disk attached to the upper surface of the base so as to be rotatable about a vertical central axis, and attached to a hollow portion of the base so as to drive rotation about the central axis of the rotating disk With drive unit It has an upper moving end and a lower moving end that are pivotally connected to the mounting seat and the turntable, respectively, and a telescopic rod member that can be extended and contracted, and standing upright on the turntable at a predetermined interval from each other, The control means comprises two columns having a lower end fixed to the rotating table and an upper end pivoted to the mounting seat, and the control means outputs sensing information indicating the incident direction of the sunlight. A rotation unit that is connected to the unit, the sensing unit, the drive unit, and the telescopic rod member, and that is rotated by the drive unit and the telescopic rod member based on sensing information output by the sensing unit. By adjusting the length, the drive unit and a controller for controlling the telescopic rod member are provided so that the light collecting unit faces sunlight.

  In the solar water heater of the present invention, the condensing unit includes a plurality of condensing lenses rotatably attached to the mounting seat and having a longitudinal direction in the first direction, and the plurality of condensing lenses are the first condensing lenses. The tubular member has a plurality of linear portions that are bent in a U-shape for each predetermined length and are arranged in parallel with the first direction. The plurality of linear portions are arranged in parallel in the second direction at a predetermined interval, and each linear portion is disposed below each of the plurality of condenser lenses.

  In the solar hot water apparatus of the present invention, the solar light collecting means is further attached to the attachment seat so as to correspond to the straight portion below the tubular member and has a longitudinal direction in the first direction. It is preferable to have a plurality.

  In the solar water heater of the present invention, it is preferable that each of the condensing lenses is a plano-convex lens having a flat surface on the support means side and a convex surface on the opposite side.

  In the solar water heater of the present invention, each of the condensing lenses may be a biconvex lens having biconvex surfaces protruding on opposite sides.

  In the solar water heater of the present invention, it is preferable to use a fluid cylinder as the telescopic rod member.

  In the solar water heater of the present invention, the drive unit preferably uses a motor that is electrically connected so as to be controlled by the controller of the control means. Preferably, the motor has a drive shaft extending along the central axis, and is installed on the rotating disk so that the driving shaft of the motor rotates together with the rotating disk.

  In the solar water heater of the present invention, the drive unit has a motor shaft and is electrically connected so as to be controlled by the controller of the control means, and the rotation unit rotates together with the turntable. A drive rod extending along the central axis installed on the board, a transmission wheel attached to the drive rod so as to rotate together with the drive rod, and transmission of rotation of the motor shaft of the motor to the transmission wheel And a rotation transmission means for performing the above-described operation.

  In the solar water heater of the present invention, it is preferable that the support means further includes a plurality of wheels attached to the lower surface of the base.

  According to the solar hot water apparatus of the present invention, the controller controls the support means based on the sensing information from the sensing unit, thereby changing the attitude of the sunlight collecting means and setting the tubular member to an appropriate angle with respect to sunlight. Can be set. Moreover, sunlight can be concentrated on the tubular member by the condenser lens. Therefore, the solar water heater of the present invention can improve the solar heat collection efficiency and can warm the water in the tubular member with stable thermal energy.

It is a perspective view which shows the solar water heater which concerns on the 1st Embodiment of this invention. It is side surface sectional drawing which shows the use condition of the solar water heater which concerns on 1st Embodiment. It is a perspective view which shows the sunlight collection means in 1st Embodiment. It is side surface sectional drawing which shows a part of example of a sunlight collection means. It is side surface sectional drawing which shows the use condition of sunlight collection means. It is side surface sectional drawing which shows a part of other example of sunlight collection means. It is side surface sectional drawing which shows the other use condition of the solar water heating apparatus which concerns on 1st Embodiment. It is a circuit block diagram which shows a part of solar thermal water apparatus which concerns on 1st Embodiment. It is a perspective view which shows the solar water heating apparatus which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the component which has substantially the same structure and function, the same number is attached | subjected and the description is abbreviate | omitted. However, it should be particularly understood that the drawings are provided for purposes of illustration and description only and are not intended to limit the invention.

[First Embodiment]
FIGS. 1-8 is a figure which shows the structure and effect | action of 1st Embodiment of the solar water heater of this invention in detail.

  The solar water heater according to the present invention warms water by solar heat, and as shown in FIG. 1 and FIG. 2, the solar light collecting means 2 for concentrating sunlight and the solar light collecting means 2 are supported so that the posture can be changed. Supporting means 3 for controlling, and control means 4 for controlling the attitude of the sunlight collecting means 2. As shown in FIG. 2, the solar water heater is installed on the plane b.

  The sunlight collecting means 2 has a mounting seat 21, a hollow tubular member 22, and a light collecting unit 23.

  The mounting seat 21 is provided on the support means 3.

  The tubular member 22 is mounted on the mounting seat 21 and circulates water through the hollow portion. As shown in FIG. 3, in this example, the tubular member 22 is bent into a U shape every predetermined length, and a plurality of linear portions 221 having a longitudinal direction in the X direction are perpendicular to the X direction. It is configured to be arranged in parallel at a predetermined interval in the Y direction.

  As shown in FIG. 4, the light collecting unit 23 is attached to the mounting seat 21, and sunlight is concentrated on the tubular member 22 so that the water in the tubular member 22 is warmed by solar heat. It is installed above 221. Further, as shown in FIG. 3, in this embodiment, the light collecting unit 23 includes a plurality of light collecting lenses 230 having a longitudinal direction in the X direction, and the plurality of light collecting lenses 230 correspond to the linear portion 221. Are arranged in the Y direction perpendicular to the X direction.

  Further, as shown in FIG. 5, the condensing lens 230 is rotatably attached to the attachment seat 21, so that it can rotate with respect to the attachment seat 21. In this example, each of the condenser lenses 230 has a convex surface 231 on the sunlight incident side and a flat surface 232 on the opposite tubular member 22 side. As another example, as shown in FIG. 230 'may be a biconvex lens having biconvex surfaces 231 and 232' projecting on opposite sides.

  Further, as shown in FIG. 4, the sunlight collecting means 2 further has a reflecting surface 24. The reflecting surface 24 is disposed below the tubular member 22 so as to correspond to the straight portion 221, and is mounted on the mounting seat 21 so as to reflect incident sunlight to the lower surface of the straight portion 221 of the tubular member 22. .

  The support means 3 supports the solar light collecting means 2 so that the posture thereof can be changed, and includes a base 31, a rotating disk 32, a drive unit 33, a telescopic rod member 34, and a column 35.

  The base 31 is formed of a housing having a hollow portion, is installed on the plane b, and has an upper surface 311 on the sunlight collecting means 2 side and a lower surface 312 on the opposite side of the upper surface 311.

  The turntable 32 is attached to the upper surface 311 of the base 31 so as to be rotatable about the central axis a in the vertical direction.

  The drive unit 33 is attached to the hollow portion of the base 31 so as to drive rotation about the central axis a of the turntable 32. As shown in FIGS. 2 and 7, the drive unit 33 includes a motor 330 that is electrically connected to the control means 4. The motor 330 has a drive shaft 331 extending along the central axis a, and is installed on the rotating disk 32 so that the driving shaft 331 can rotate together with the rotating disk 32.

  The telescopic rod member 34 has an upper moving end and a lower moving end that are pivotally connected to the mounting seat 21 and the turntable 32, respectively. In this example, a fluid cylinder such as a hydraulic cylinder or a pneumatic cylinder is used as the telescopic rod member.

  The telescopic rod member 34 has a cylindrical body 341 and a piston rod 342 connected to the cylindrical body 341 so as to be able to reciprocate. The cylindrical body 341 has a lower moving end 3411 that is pivotally connected to the turntable 32. The piston rod 342 has an upper moving end 3421 that is pivotally connected to the mounting seat 21.

  The two support columns 35 stand upright on the turntable 32 at a predetermined interval. Each column 35 has a lower end 351 fixed to the turntable 32 and an upper end 352 pivoted to the mounting seat 21.

  The attitude control of the present invention will be described as follows with reference to FIG. The control means 4 includes a sensing unit 41 and a controller 42. The sensing unit 41 outputs sensing information indicating the incident direction of sunlight. The controller 42 is electrically connected to the sensing unit 41, the motor 330 of the drive unit 33, and the telescopic rod member 34, and the sensing unit 41 is operated by the drive unit 33 based on the sensing information output. The rotation of 32 and the expansion / contraction of the telescopic rod member 34 are controlled. The attitude of the sunlight collecting means 2 is controlled by rotating the rotating disk 32 and adjusting the length of the telescopic rod member 34 by the drive unit 33. As shown in FIG. 2 or FIG. Can be controlled so as to face sunlight, that is, maintain an angle at which solar heat can be collected efficiently.

[Second Embodiment]
FIG. 9 is a perspective view showing a solar water heater of a second embodiment according to the present invention. This configuration differs from the first embodiment in the configuration of the drive unit. The drive unit 33 ′ in the second embodiment includes a motor 330 ′, a drive rod 36, a transmission wheel 37, and a rotation transmission means 38. In this embodiment, an annular transmission belt 38 is used as the rotation transmission means 38.

  The motor 330 ′ has a motor shaft 332 and is electrically connected so as to be controlled by the controller 42 of the control means 4.

  The drive rod 36 is installed on the turntable 32 so as to rotate together with the turntable 32 and extends along the central axis a.

  The transmission wheel 37 is attached to the drive rod 36 so as to rotate together with the drive rod 36.

  The transmission belt 38 is mounted on the motor shaft 332 and the transmission wheel 37 of the motor 330 ′, and serves as a rotation transmission unit that transmits the rotation of the motor shaft 332 to the transmission wheel 37.

  In this embodiment, the support means 3 further includes a plurality of wheels 39 attached to the lower surface 312 of the base 31, and the support means 3 is movable with respect to the plane b.

  As described above, the controller 42 controls the support means 3 based on the sensing information from the sensing unit 41 of the present invention so that the condenser lens 230 (230 ′) and the tubular member 22 face sunlight, that is, The angle at which solar heat can be collected efficiently is maintained, and sunlight can be concentrated on the tubular member 22 by the condenser lens 230 (230 ′). Therefore, the solar water heater of the present invention can improve the solar heat collection efficiency and can warm the water in the tubular member 22 with stable thermal energy.

2 Sunlight collecting means 21 Mounting seat 22 Tubular member 221 Linear portion 230, 230 ′ Condensing lens 231, 232 ′ Convex surface 232 Plane 24 Reflecting surface 3 Support means 31 Base 311 Upper surface 312 Lower surface 32 Turntable 33 Drive unit 330, 330 ′ Motor 331 Drive shaft 332 Motor shaft 34 Telescopic rod member 341 Cylindrical body 3411 Lower moving end 342 Piston rod 3421 Upper moving end 35 Post 351 Lower end 352 Upper end 36 Drive rod 37 Transmission wheel 38 Transmission belt 39 Wheel 4 Control means 41 Sensing unit 42 Controller a Central axis b Plane

Claims (9)

A solar water heater that heats water by solar heat,
A sunlight collecting means for concentrating sunlight, a supporting means for supporting the sunlight collecting means so as to change the attitude, and a control means for controlling the attitude of the sunlight collecting means,
The sunlight collecting means includes
A mounting seat;
A tubular member having a hollow portion for circulating water;
A light collecting unit mounted on the mounting seat and disposed above the tubular member so as to concentrate sunlight on the tubular member;
The support means is
A hollow base having an upper surface on the solar light collecting means side and a lower surface opposite to the upper surface;
A turntable attached to the upper surface of the base so as to be rotatable about a vertical central axis;
A drive unit attached to the hollow portion of the base so as to drive rotation about the central axis of the rotating disk;
A telescopic rod member having an upper moving end and a lower moving end that are pivotally connected to the mounting seat and the turntable, respectively;
Two struts standing on the turntable at a predetermined distance from each other and having a lower end fixed to the turntable and an upper end pivotally connected to the mounting seat;
The control means
A sensing unit that outputs sensing information representing the incident direction of sunlight;
Based on the sensing information output from the sensing unit and connected to the sensing unit, the driving unit, and the telescopic rod member, the rotation of the rotating disk by the driving unit and the length of the telescopic rod member It has a controller which controls the drive unit and the telescopic rod member so that the condensing unit faces sunlight by adjustment. The condensing unit is rotatably attached to the mounting seat and includes a plurality of condensing lenses having a longitudinal direction in the first direction, and the plurality of condensing lenses are perpendicular to the first direction. Arranged in a second direction,
The tubular member is bent into a U shape for each predetermined length and has a plurality of linear portions arranged in parallel with the first direction, and the plurality of linear portions are predetermined in the second direction. The solar water heater according to claim 1, wherein the linear portions are arranged in parallel with each other at a distance of and each linear portion is disposed below each of the plurality of condensing lenses.   The solar light collecting means further includes a plurality of reflecting members attached to the attachment seat below the tubular member and corresponding to the linear portion and having a longitudinal direction in a first direction. The solar water heater according to claim 2.   The solar water heater according to claim 2, wherein each of the condensing lenses uses a plano-convex lens having a flat surface on the support means side and a convex surface on the opposite side.   The solar water heater according to claim 2, wherein each of the condensing lenses uses a biconvex lens having biconvex surfaces protruding on opposite sides.   The solar water heater according to claim 1, wherein a fluid cylinder is used as the telescopic rod member.   The drive unit has a motor electrically connected so as to be controlled by the controller of the control means, and the motor has a drive shaft extending along the central axis, and the drive shaft of the motor The solar water heater according to claim 1, wherein the solar water heater is installed on the rotating disk so as to rotate together with the rotating disk. The drive unit is
A motor having a motor shaft and electrically connected to be controlled by a controller of the control means;
A drive rod extending along the central axis installed on the turntable to rotate with the turntable;
A transmission wheel attached to the drive rod for rotation with the drive rod;
The solar water heater according to claim 1, further comprising: a rotation transmission unit configured to transmit rotation of a motor shaft of the motor to the transmission wheel.   The solar water heater according to claim 1, wherein the support means further includes a plurality of wheels attached to a lower surface of the base.

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