CN2699194Y - High efficiency low cost high precision automatic tracking solar furnace - Google Patents

Abstract

The utility model relates to a full-automatic high efficiency accurate tracking solar cooker. The utility model accomplishes the precise sun tracking through controlling the motor by a magnetic controlling circuit and adjusting the utility model by two axes, a longitudinal axis and a transverse axis. A used bracket with parallelogram mechanism can guarantee that the incident rays of the sun is vertical to the effective area of the condenser all the time. The utilization rate of the effective area of the solar cooker condenser is always 100% to greatly improve the efficiency and, after sunset, an adopted travel switch can automatically turns to the direction of the sunrise to wait for the next workday. Consequently, the full automatic, high efficiency and precision sun tracking is accomplished.

Description

The High Precision Automatic tracking solar cooker of high-efficiency and low-cost

Affiliated technical field

The utility model relate to a kind of can make solar cooker round-the-clock search position of sun and can be accurately from the solar cooker device of motion tracking.

Background technology

At present, the focus that the solar cooker of the leading market mainstream all needs artificial adjusting in real time to guarantee that variation because of position of sun departs from heating object comes back on the heating object to achieve the goal, but this not only needs manually to realize, and its efficient and precision are all very low.At present, also have by alternate manner and realize solar cooker device from motion tracking, but all because of cost too high or precision and efficient not high enough do not have to promote come, requirement as " Chinese solar cooker net " solar cooker tackling key problem group: solar cooker " supporting autotracker is absolutely necessary; so should accelerate the development of solar cooker autotracker; and note its economic and practical, improve using value.”

Summary of the invention

Solar cooker market is mainly towards west area that economy comparatively falls behind and vast rural area, the utility model can not only be liberated manpower and be realized automation, and can realize High Precision Automatic tracking with low cost, can make its effective condenser mirror area reach 100% and utilize.

The scheme that its technical problem that solves the utility model adopts is: at the base vertical principal post of climbing the tree, it can laterally freely rotate on base.For the gravity that makes condenser and heating object balance as far as possible on transverse axis, with two suspension brackets the transverse axis on condenser and the principal post is hinged in that condenser is positive.Condenser can rotate around variation longitudinal extent in 90 degree of transverse axis with sun altitude.Principal post is connected rotation with base with bearing, can rotate in lateral extent around base.Horizontal placement is installed on the principal post, and the adjustable miniature cocurrent electromotor of direction, it can drive condenser and realize from motion tracking when sun altitude changes.The vertical miniature cocurrent electromotor of placing be fixed on base upper end and the gears engaged concentric with principal post, when this motor passed to the adjustable low voltage direct current of polarity, this motor can drive principal post and vertically rotate on horizontal plane together with condenser.The electric current that feeds two motor is by magnetic control circuit and temperature-sensing element control.Be placed on each one up and down of focus temperature-sensing element on every side, each temperature-sensing element is in series with a magnetic control contactor coil and power supply respectively.When dropping on the temperature-sensing element behind the focal shift, come break-make magnetic control contactor coil separately by temperature-sensing element, and then require the motor of big electric current, and the motor drives condenser is adjusted back to focus on the heating object again by the control of magnetic control contactor.The utility model is settled a rotation travel switch at principal post and base junction, and the motor that it can control vertical placement is finished when sun west falls behind (during no heating efficiency) and made condenser rotate back into the direction of sunrise.This utility model has adopted a parallel-crank mechanism at pot frame support place simultaneously, and the pot frame remained level when this mechanism not only can make condenser vertically rotate, and also can make support vertical with condenser all the time.Guarantee that promptly incident ray is vertical with the condenser significant surface all the time, and make the effective area of solar cooker condenser in use keep maximum, thereby further improve the efficient of solar cooker.

After the sunrise, when sunlight intensity is enough to heating object because of condenser focuses on, adjusting back to big focusing focus to the condenser that points to day outgoing direction drops on one of heating object four temperature-sensing elements on every side, temperature-sensing element by to the control of the magnetic control contactor coil that links to each other separately, thereby two motor drives condensers of the control of noncontradictory repeat to adjust, and focus is dropped on the heating object.After adjustment is finished, just entered the heating work state.In heating process, the sun moves the skew that also can cause focus once more, and profit uses the same method and can finish adjustment, and focus is come back on the heating object.In order to proofread and correct the focus that significantly is offset behind the sexual intercourse weather, one or two temperature sensitive switches in parallel on the temperature sensitive switch that causes focus direction by east because of the sun is to the west, when even four basic temperature sensitive switches lost efficacy simultaneously because of the focal shift scope is excessive like this, focus is adjusted back in four basic switch sphere of actions again, thereby realize round-the-clock from motion tracking.

The beneficial effects of the utility model are: the utility model is after artificial debugging for the first time, can promptly and accurately follow the tracks of at fine day, and meet sexual intercourse later focus temp reach and can adjust tracking again automatically when being enough to heating object, thereby realize round-the-clock from motion tracking.And the parallel-crank mechanism that it adopted just can make condenser effective area utilization rate reach 100% with lower cost, can make solar cooker realize the purpose of the full automatic high efficiency rate accurate tracking sun.

Description of drawings

Be that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments below.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is that the utility model heating place temperature-sensing element distributes and fundamental diagram.

Fig. 3 is that the utility model is from motion tracking and recovery control circuit figure.

Among the figure, 1. base, 2. principal post, 3. transverse axis, 4. condenser, 5. pot frame pole, 6. pot frame, 7. pot frame pull bar 8. principal post cross bars, 9. suspension bracket, 10. gear, 11. miniature cocurrent electromotor, 12. semi-ring gears, 13. miniature cocurrent electromotors, 14. travel switch, 15 auxiliary poles, 16,17,18,19 beckets are led rule.

The specific embodiment

In the embodiment in figure 1, base (1) is connected with pair of bearings with principal post (2), and vertically principal post can laterally freely rotate on base.Be fixed on the gear (10) of base upper end and the gears engaged on the miniature cocurrent electromotor (11) after slowing down, when motor passes to via temperature sensitive switch (K1) with (K2) and when magnetic control circuit control amplified current and positive and negative rotation, just can drive principal post (2) and top thereof and rotate in lateral extent.Fixing transverse axis (3) two suspension brackets (9) positive with being fixed on condenser (4) in principal post (2) middle part are hinged, and condenser (4) can vertically rotate in the sun altitude excursion around transverse axis (3).Condenser (4) back side by put one with the concentric semi-ring gear (12) of transverse axis (3) and with miniature cocurrent electromotor (13) after slowing down on gears engaged, when motor passes to via temperature sensitive switch and magnetic control circuit control amplified current positive and negative rotation, just can drive condenser (4) and top thereof and in the sun altitude excursion, vertically rotate.In parallelogram pot frame bracket institution, by pot frame pole (5), pot frame (6), flat bar (8) head and the tail of pull bar (7) and principal post upper end are hinged with bearing pin successively, and the formation parallel-crank mechanism, and pot frame pole (5) is fixed on the condenser (4), thereby make the solar cooker condenser when vertically rotating, can guarantee the level of pot frame pole (5) and the vertical of condenser (4) and pot frame all the time with auxiliary pole (15).In the temperature sensitive switch distribution and work sheet of Fig. 2, concentric and be distributed in the insulation of pot frame peripheral and place four sections rustless metals rings (16) with pot frame (6), (17), (18), (19) form the rule of leading of temperature sensitive switch with pot frame (6), four temperature sensitive switches (k1). (k2). (k3). touch with four sections rustless metal annulus and pot bridge joint respectively at two ends (k4), forms on-off circuit.Four temperature sensitive switches can be free to slide leading on the rule.Four sections rustless metal annulus be wired to respectively magnetic control contactor among Fig. 3 (KM1, KM2, KM3, an end of magnet coil KM4), the positive pole of the coil other end and power supply joins.The negative pole of power supply and solar cooker metal body join, and make each section rustless metal annulus, temperature sensitive switch, and the pot frame, the magnetic control contactor coil, power supply and lead and solar cooker metal body constitute the closed-loop path.One to two temperature sensitive switch in parallel on the temperature sensitive switch K3 right side is used to meet the adjustment that weather back focus such as sexual intercourse significantly is offset.Fig. 3 from motion tracking and restore among the control circuit figure, the 220v AC power through becoming low-voltage dc power supply after the ballast part, also can directly be used low-voltage dc power supply again through the transformer step-down.(KM3 KM4) is made up of a coil and a double contact switch four magnetic control contactors for KM1, KM2.Temperature sensitive switch (K1, K2, K3, K4) respectively with magnetic control contactor (KM1, KM2, KM3, coil series connection back KM4) is inserted in the low-voltage dc power supply, the coil of four magnetic control contactors is controlled four double contact switch respectively, and wherein each double contact switch is made up of a normal open switch and a normally closed switch.The normally-closed contact of each double contact switch extremely links to each other with power supply one, and another extremely links to each other normally opened contact and power supply.Low-voltage direct motor M1 is communicated with magnetic control contactor (KM2) and contact (KM4), and motor (M2) is communicated with two switch contacts (KM1) and contact (KM3).When temperature sensitive switch (K1) was closed, magnetic control contactor (KM1) disconnected normally opened contact, and motor (M1) just changes; When temperature sensitive switch (K3) was closed, magnetic control contactor (KM3) disconnected normally-closed contact, connected normally opened contact, motor (M1) counter-rotating.In like manner, when temperature sensitive switch (K2) was closed, motor (M2) just changeed; When temperature sensitive switch (K4) is closed, motor (M2) counter-rotating.One stroke switch in parallel (ST) on the normally opened contact of magnetic control contactor (KM3), when the solar cooker condenser goes to certain position (such as the place that falls facing to sun west), travel switch (ST) is connected, motor (M1) counter-rotating, and driving condenser and top thereof east changes.When the solar cooker condenser went to the position that sun east goes out, travel switch (ST) disconnected, and motor (M1) stops operating, and finish such working day.

Claims (7)

1. solar cooker, one vertical principal post is arranged on base, vertically principal post can laterally freely rotate on base, condenser links to each other by a transverse axis that is fixed on the principal post, and can in longitudinal extent, rotate around it, by to condenser horizontal and vertical adjusting regulate the position of focus, focussing force by condenser comes the object on the heating kettle frame, it is characterized in that: vertically be fixed on the principal post lower end the miniature cocurrent electromotor gear through slowing down be fixed on base upper end and the gears engaged concentric with principal post; Be horizontally fixed on the miniature cocurrent electromotor gear through slowing down of principal post upper end and be fixed on the condenser back side and the semi-ring tooth engagement concentric with transverse axis, and by parallelogram pot frame mechanism, temperature sensitive switch, compositions such as magnetic control contactor.

2. solar cooker according to claim 1 is characterized in that: the pot frame, and pole, the cross bar of principal post upper end, pull bar order head and the tail successively are hinged with bearing pin, form parallel-crank mechanism.

3. solar cooker according to claim 1, it is characterized in that: four sections rustless metal annulus of insulating mounting and pot frame are formed the rule of leading of temperature sensitive switch respectively at the pot frame peripheral, touch with four sections rustless metal annulus and pot bridge joint respectively at the two ends of four temperature sensitive switches, form on-off circuit, and at left end temperature sensitive switch one or two same temperature sensitive switch in parallel, temperature sensitive switch is formed with bimetallic material.

4. solar cooker according to claim 1 is characterized in that: the transverse axis on condenser and the principal post is hinged with two suspension brackets in the condenser front, makes condenser gravity and heating object keep balance as far as possible.

5. solar cooker according to claim 1 is characterized in that: the pull bar hollow pipe on the parallel-crank mechanism support of pot frame is used for putting four leads of follow-up control circuit.

6. solar cooker according to claim 1, it is characterized in that: the ac power supply of available 220V, also available low-voltage dc power supply is directly powered, the 220V AC power is a DC current through a bridge circuit ballast of being made up of four diodes after than high-power transformer, its control section is by temperature sensitive switch, travel switch and magnetic control contactor are formed, and working portion is made up of two motor.

7. solar cooker according to claim 1 is characterized in that: a rotation travel switch is settled in the upper end of principal post and base junction, and travel switch is in the certain angle scope during rotary action.This scope can be adjusted.Travel switch will be in normally open in this scope, also can be in normally off, and its state can be by a kind of another kind of changing into when switch goes to extreme position.

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