CN203444342U - Support of tracking motion of sun - Google Patents

Abstract

The utility model discloses a support of tracking the motion of the sun. The support of tracking the motion of the sun can be used in a solar photovoltaic power generation system and a solar heat utilization system, and is characterized in that a chassis (2) and a receiver support (2) are connected together a pin (14), and the receiver support (2) swings around the pin (14) under the action of a motor (7) via the gears (8, 15) and a screw rod (13), thereby tracking the height change of the sun. A fixing rotating shaft (4) and two rotating wheels (5) are arranged under the chassis (3), and a power supply box (6) drives one of the rotating wheels (5) via a chain (9), so that the support of tracking the motion of the sun overall does the circular motion around the fixing rotating shaft (4) to track the orientation motion of the sun from east to west. A micro computer controller controls the motor (7) and the power supply box (6) to start, and the numerical values of the azimuth angle and the height angle of the sun which take the time as a function are stored in the micro computer controller. After the set time is arrived, the controller turns on the motor (7) and the power supply box (6), and electrifies and magnetizes the corresponding electromagnets according to the numerical values of the azimuth angle and the height angle stored in the micro computer. When the support of tracking the motion of the sun moves to a corresponding position, a reed switch is switched on, the controller cuts off the power supply of the motor (7) and the power supply box (6), and the support of tracking the motion of the sun reaches a predetermined position.

Description

A kind of support of following the tracks of solar motion

Technical field

The utility model relates to solar utilization technique, especially a kind of support of following the tracks of solar motion.

Background technology

At present sun power as new energy field the most clean environment firendly, the cheap energy of safety be subject to the attention of countries in the world, application scale expands rapidly.In order to absorb to greatest extent solar radiant energy, it (can be solar photovoltaic cell panel that many systems all adopt solar energy acceptor, also can be solar thermal collector) tracking solar motion, the raying face of making is vertical with sunray all the time, reaches the radiation energy that absorbs to greatest extent the sun.But there are two problems in existing system, the one, in order to make full use of solar tracking device, and the support of fixed solar receiver is done very large, not only price is high, the maintenance of returning in use brings difficulty; The 2nd, existing tracking means precision is high, and maintenance is large, maintenance difficult.Therefore in small-scale application, run into certain difficulty, especially at family, popularize with being difficult in system.

Summary of the invention

The utility model, by a kind of support of following the tracks of solar motion is provided, can be used for fixing solar receiver.Solar receiver can be solar photovoltaic cell panel, can be also the solar thermal collector (take solar thermal collector in this programme figure as example) that solar thermal utilization is used.The support of this tracking solar motion has chassis and receiver holder body.Solar receiver is fixed on fore-stock face, towards the sun with movable axis.Under support chassis, have fixed rotating shaft and two runners, fixed rotating shaft is used for supporting bracket simultaneously as the axle center of support level rotation.At two runners of the other end, supporting support and can carry support on the back and rotating around fixed rotating shaft.This rotation is used for following the tracks of the sun by east motion westerly.After receiver holder, there is pole to be fixedly supported on support chassis, support bar forms by two sections, hypomere is a sleeve pipe, epimere is a screw mandrel, and screw mandrel can insert sleeve pipe, in sleeve pipe upper port, has one and the nut that coordinates of screw mandrel, rotating nut can regulate screw mandrel to insert the length of sleeve pipe, change the total length of back stay, regulate the inclination angle of front support rod, follow the tracks of the variation of solar motion elevation angle.

The motion control employing time of the present utility model is controlled.Time is exactly the function of solar motion in fact, in position angle and the elevation angle of different seasons, different time, the different place sun, fixes.

Wherein: the expression formula of the elevation angle of the sun:

sinα _s＝sinφsinδ+cosφcosδcosω

In formula: α _sfor sun altitude; φ is geographic latitude; δ is solar declination; ω is hour angle.

Azimuthal expression formula of the sun:

$\sin {\mathrm{\γ}}_s=\frac{\cos \mathrm{\δ}\sin \mathrm{\ω}}{\cos {\mathrm{\α}}_s}$

In formula: γ _sfor solar azimuth.

If 40 ° of sun altitudes of north latitude and azimuthal diurnal variation are as following table:

Can find out that the elevation angle that solar motion causes and azimuthal variation can be calculated accurately.By sun altitude and azimuthal variation, by every day the mean value at interval of the regular hour with the number list rounding up, be stored in the storage chip of microcomputer controller.Under microcomputer controller is controlled, controller will read sun altitude corresponding with this moment in a storage chip and azimuthal numerical value at regular intervals, and send instruction, start support level electric rotating machine and support back stay drive motor, support rotates horizontally rotate with the elevation angle simultaneously.A set of like this microcomputer controller can be controlled several supports and move simultaneously, has not only greatly saved investment, has also reduced the probability damaging, and has reduced daily servicing amount.

Electromagnet with angle signal source is installed on support bracket fastened ground, and electromagnet be take on the arc track that fixed rotating shaft is the center of circle by fix one at interval of 5 degree (also can set different angles according to accuracy requirement).When sending orientation angles signal when microcomputer controller, corresponding electromagnet is magnetized with it, has a tongue tube on support.When microcomputer controller is according to the instruction storing, support is sent to the instruction of support rotation, when opening rotary drive motor power supply, open the power supply that magnetizes of corresponding tongue tube, support rotate to tongue tube with the electromagnet that is magnetized at once, be that support has reached by time desired location, tongue tube receives signal, and controller cuts off the driving power of this support, support stop motion.

On the chassis of support, be provided with an arc frame, same by interval of 5 degree (can need to set the number of degrees by precision equally), electromagnet being set on arc frame.On receiver holder, be provided with tongue tube.When microcomputer controller is according to the instruction storing, receiver holder is sent to the instruction of rotation, when opening rotary drive motor power supply, open the power supply that magnetizes of corresponding tongue tube, receiver holder rotate to tongue tube with the electromagnet that is magnetized at once, be that receiver holder has reached the position of setting by the time, tongue tube receives signal, and controller cuts off the driving power of this support, receiver holder stop motion.

At interval of being set as 5 minutes, carry out once (or 10,15,20 minutes) in above-mentioned two motions.Certainly with needs, controlled, shorten at interval, and tracking accuracy is high.As long as change position angle and the elevation angle numerical value of storage in microcomputer controller, and change on horizontal arc track the layout density with tongue tube on vertical arc frame.Like this can be so that solar radiation energy be accepted in the in good time tracking sun's motion of solar receiver to greatest extent.

Accompanying drawing explanation

Below in conjunction with drawings and embodiments, the utility model is described in further detail.

Fig. 1 is a kind of side view of following the tracks of the support of solar motion of the utility model;

Fig. 2 is a kind of vertical view of following the tracks of the support of solar motion of the utility model;

Fig. 3 is a kind of rear view of following the tracks of the support of solar motion of the utility model;

Fig. 4 is a kind of support of following the tracks of solar motion of the utility model location drawing in collector array morning of forming;

Fig. 5 is a kind of support of following the tracks of solar motion of the utility model location drawing at collector array noon of forming;

Fig. 6 is a kind of support of following the tracks of solar motion of the utility model location drawing in collector array afternoon of forming.

Embodiment

Fig. 1 is a kind of side view of following the tracks of the support of solar motion of the utility model.This support chassis 3 of following the tracks of solar motion is connected with receiver holder 2 use pins 14.When motor 7 rotates, driven gear group 8 is rotated, and also follows rotation with another gear 15 of gear 8 engagements.The endoporus of gear 15 coordinates with screw mandrel 13 with screw thread, and gear 15 is done positive and negative rotation, and drive screw mandrel 13 is done to stretching motion, supports receiver holder 2 and swings around pin 14, adapts to the height change of the sun.In receiver holder one side, have the arc frame 11 being fixed on chassis, have several electromagnet 12 on arc frame, electromagnet is arranged on the camber line that a pin 14 is the center of circle, and the number of degrees between each electromagnet are determined according to design accuracy.On the side of receiver holder, with electromagnet corresponding position, a tongue tube is installed, after certain electromagnet 12 is energized and magnetizes, receiver holder 2 is when the swing of doing around pin 14, when tongue tube corresponds to the electromagnet being magnetized, be, tongue tube is inhaled and is connected, controller cuts off the power supply of motor 7 immediately, receiver holder 2 stop motions.

This chassis of following the tracks of solar motion support is supported by fixed rotating shaft 4 and two runners 5 of opposite side.Fixed rotating shaft 4 is to follow the tracks of the axle center that solar motion support rotates, and two runners 5 of opposite side are being carried whole support on the back and rotated round rotating shaft 4.Follow the tracks of the rotation of solar motion support and exported by headstock 6, by chain 9, drive one of them runner 5 to rotate, make the support of following the tracks of solar motion take rotating shaft 4 as axle center rotation.

Fig. 2 is a kind of vertical view of following the tracks of the support of solar motion of the utility model.On the ground on chassis, have one to take the arc track that rotating shaft 4 is the center of circle, some electromagnet 17 are installed on arc track, the spacing of electromagnet is according to determine precision, and what on Fig. 2, mark is interval 5 degree, is equivalent to the angle of solar motion in about 13 minutes.The straight-bar 16 that one end is provided with tongue tube is installed below chassis, the movement locus of straight-bar 16 and the arc track coincidence that tongue tube is housed.Follow the tracks of support setting in motion under the control of controller of solar motion, when straight-bar 16 move to corresponding with the electromagnet 17 being magnetized after, the tongue tube of straight-bar end is adhesive conducting under the effect in electromagnet magnetic field, controller cycle receives after this signal, cut off the power supply of headstock 6, follow the tracks of the support stop motion of solar motion.

Fig. 3 is a kind of rear view of following the tracks of the support of solar motion of the utility model.

Fig. 4 is a kind of formation of following the tracks of the support array auto arrangement in morning of solar motion of the utility model.

Fig. 5 is a kind of formation of following the tracks of the support array auto arrangement at high noon of solar motion of the utility model.

Fig. 6 is a kind of formation of following the tracks of the support array dusk auto arrangement of solar motion of the utility model.

Claims (4)

1. a support of following the tracks of solar motion, the receiver holder that can swing (2) that has pin (14) to connect on its chassis (3), it is characterized in that: on chassis (3), have screw mandrel (13) to be connected with receiver holder (2), on screw mandrel (13), have and coordinate the gear (15) with internal thread with screw mandrel (13), be fixed on the output shaft end of motor (7) with gear (15) meshed gears (8), when motor (7) energising is rotated, by gear (8) driven wheel (15), during gear (15) rotation, its internal thread driving screw mandrel (13) is done and is risen or descending motion, thereby make receiver holder do the swing that a pin (14) axis is axle center, follow the tracks of the height change of the sun.

2. according to a kind of support of following the tracks of solar motion claimed in claim 1, the fixed rotating shaft (4) and two runners (5) that on its chassis (3), have support chassis (3), it is characterized in that: fixed rotating shaft (4) is fixed on foundation ground, one side of support chassis (3), on chassis, the opposite side of (3) has two runners (5) supporting, a runner that is positioned at back, chassis (3) in two runners (5) is connected with headstock (6) by chain (9), when headstock energising, output shaft drives the runner (5) being attached thereto to rotate by sprocket wheel (9), do around the rotation of fixed rotating shaft (4) on chassis (3), follow the tracks of sun motion from east to west.

3. according to a kind of support of following the tracks of solar motion claimed in claim 1, arc frame (11) is installed on its chassis (3), it is characterized in that: the electromagnet (12) of arranging is at regular intervals installed on arc frame (11), electromagnet (12) is arranged in take on the camber line that pin (14) is the center of circle, spacing distance is determined according to control accuracy, receiver holder (2) is when swinging, and the tongue tube that is arranged on its side can be corresponding one by one with the electromagnet being arranged on arc frame (11).

4. according to a kind of support of following the tracks of solar motion claimed in claim 2, a side-lower in its chassis (3) is equipped with end with the straight-bar (16) of tongue tube, it is characterized in that: when the support of tracking solar motion rotates around fixed rotating shaft (4), the track of straight-bar (16) is one and take the camber line that fixed rotating shaft (14) is the center of circle, if individual electromagnet (17) is installed on this curved line, these electromagnet that are arranged on this curved line have formed a camber line track, when following the tracks of the support of solar motion, rotate, the tongue tube of straight-bar (16) end can be corresponding one by one with the electromagnet being arranged on arc frame (11).

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