CN202494928U - Sunlight tracking sensor - Google Patents
Sunlight tracking sensor Download PDFInfo
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- CN202494928U CN202494928U CN201220018891XU CN201220018891U CN202494928U CN 202494928 U CN202494928 U CN 202494928U CN 201220018891X U CN201220018891X U CN 201220018891XU CN 201220018891 U CN201220018891 U CN 201220018891U CN 202494928 U CN202494928 U CN 202494928U
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Abstract
The utility model relates to a sunlight tracking sensor which comprises a mounting base with a square pyramid on the top, a glass protecting cover sheathed on the square pyramid, linear optoelectronic devices arranged on four side faces of the square pyramid, and a light shading cylinder sheathed on the glass protecting cover. The linear optoelectronic devices are symmetrically inlaid in the four side faces of the square pyramid and form an identical angle with the plane of a pedestal of the sensor mounting base. When the sunlight is in parallel with the axis of the square pyramid of sensors, working faces of the four sensors form an identical incident angle with the sunlight so that the four sensors output an identical current; and when the sunlight slants onto the sensors, incident angles of the sunlight towards each sensor are different, so are incident luminous fluxes and output currents of the sensors. The current differences are used as input signals of a controller to control the operation of a driving device, thus enabling a solar energy collection device to face the sunlight all the time.
Description
Technical field
The utility model relates to the technical field of light sensor, specifically is a kind of sun light tracking sensor.
Background technology
Current many solar energy tracking devices, usefulness mainly be the sun light tracking sensor that four-quadrant photosensitive device and convex lens are formed, also have the sunshine sensor of a spot of photoresistance and shadow shield composition.The former utilizes the position of hot spot at the four-quadrant photosensitive device, confirms the sun with respect to the work of the position of sensor, and precision is high, and price is high.The latter utilizes shadow shield to make photoresistance confirm the sun with respect to the position of sensor by the variation of dark resistance and light resistance, and precision is low, and price is low.These two kinds of sensors all exist the little problem in visual angle.Popularize along with what sun power utilized, need a kind of precision high, the sensor that price is low.
The utility model content
The technical matters that the utility model will solve provide a kind of simple in structure, cost is lower, the sun light tracking sensor of wider field of view.
In order to solve the problems of the technologies described above; The utility model provides a kind of sun light tracking sensor, comprising: the mount pad of the positive rectangular pyramid of top band, be sheathed on protecting glass on the said positive rectangular pyramid, be located at the linear photoconductor device on four sides of said positive rectangular pyramid and be sheathed on the cone on the wall around the protecting glass.
Described four linear photoconductor devices are embedded on four sides of said positive rectangular pyramid symmetrically; Sensors A and sensor B form the pitch axis sensor groups; Sensor C and sensor D form the azimuth axis sensor groups, export pitch deviation signal and azimuth deviation signal respectively, after controller is accepted sensor signal; The accessory drive operation realizes the double-axis tracking to sunshine.
Said four photoelectric devices constitute identical angle with sensor mount pad base plane; When the parallel axes of sunshine and the positive rectangular pyramid of sensor; The workplace of four sensors forms identical incident angle with sunshine, and such four sensors will be exported identical electric current; When sunshine oblique fire sensor; Different to the incident angle of each sensor because of sunshine, the luminous flux of incident is different, and the output current of sensor is different; Its difference between current comes the operation of accessory drive as the input signal of controller, and then makes solar collecting device all the time over against sunshine.
The technique scheme of the utility model is compared prior art and had the following advantages: the sun light tracking sensor of the ability rapid temperature rise and drop of (1) the utility model, the electric current of photoelectric device (generally selecting silicon photocell for use) and the luminous flux of incident sunshine are linear.Under identical conditions, luminous flux changes with the difference of the incident angle of sunshine, is directly proportional with the cosine of the incident angle of photoelectric device.The utility model utilizes this characteristic, has designed this four-quadrant sun light tracking sensor.(2) sensor of the utility model is smart high, and price is low.It can adjust sensitivity through the angle that changes positive rectangular pyramid and bottom surface, can adjust the visual angle of sensor through the height of the relative sensor of adjustment cone.The effect of cone is the catoptrical interference of shielding, and transparent glass cover is in order to protect sensor to exempt from pollution.As required, the main body of sensor--photoelectric device and positive rectangular pyramid can be placed in the hexahedron or right cylinder of a printing opacity.
Description of drawings
For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein
Fig. 1 is the structural representation of the sun light tracking sensor among the embodiment;
Fig. 2 is a structural representation of using the solar cooker solar tracking system of above-mentioned sun light tracking sensor;
Fig. 3 is a structural representation of using the heliostat solar tracking system of above-mentioned sun light tracking sensor;
Fig. 4 is the vertical view of the sun light tracking sensor among Fig. 1.
Embodiment
Embodiment
See Fig. 1 and 4; The sun light tracking sensor of present embodiment comprises: the mount pad 1 of the positive rectangular pyramid of top band is sheathed on protecting glass 2 on the said positive rectangular pyramid, be located at the linear photoconductor device 3 on four sides of said positive rectangular pyramid and be sheathed on the cone 4 on the wall around the protecting glass 2.
Described four linear photoconductor devices are embedded on four sides of said positive rectangular pyramid symmetrically; Sensors A and sensor B form the pitch axis sensor groups; Sensor C and sensor D form the azimuth axis sensor groups, export pitch deviation signal and azimuth deviation signal respectively, after controller is accepted sensor signal; The accessory drive operation realizes the double-axis tracking to sunshine.
Application examples 1
Fig. 2 is a solar cooker solar tracking system of using above-mentioned sun light tracking sensor, constitutes the pitch axis sun light tracking sensor by silicon photocell A and silicon photocell B, and its difference between current is converted into voltage difference through 1K resistance; Digitial controller as pitch deviation signal input single-chip microcomputer formation; Change and program calculating through the A/D of single-chip microcomputer dress, to topworks's output control signal of pitch axis, topworks drives solar cooker and sensor moves together; The controller that its deviation signal constitutes to single-chip microcomputer through sensor feedback; Compare with the deviate of setting, if deviate exceeds the then controller control executing mechanism continuation operation of scope of permission, if the deviation signal of feedback in allowed limits; Then controller sends stop signal, and driver is out of service.Accomplish one time the Control Circulation process.The operation of azimuth axis is the same with pitch axis.
Application examples 2
Fig. 3 is a heliostat solar tracking system of using above-mentioned sun light tracking sensor.Different with solar cooker is, the heliostat solar tracking system, and by the pitch axis sensor groups that silicon photocell A and silicon photocell B constitute, controller is according to the operation of pitch axis sensor signal control pitch axis; By the azimuth axis sensor groups that silicon photocell C and silicon photocell D constitute, controller is according to the operation of azimuth axis sensor signal control azimuth axle.Pitch axis and azimuth axis all respectively have two cover topworks, the operations of driving sensor and heliostat respectively.Difference is that the angle that sensor turns over is the twice that heliostat turns over angle.
Claims (3)
1. sun light tracking sensor is characterized in that comprising: the mount pad (1) of the positive rectangular pyramid of top band, be sheathed on protecting glass (2) on the said positive rectangular pyramid, be located at the linear photoconductor device (3) on four sides of said positive rectangular pyramid and be sheathed on protecting glass (2) cone (4) on the wall all around.
2. sun light tracking sensor according to claim 1 is characterized in that: described four linear photoconductor devices are embedded on four sides of said positive rectangular pyramid symmetrically.
3. sun light tracking sensor according to claim 2 is characterized in that: said four photoelectric devices constitute identical angle with sensor mount pad base plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220018891XU CN202494928U (en) | 2012-01-16 | 2012-01-16 | Sunlight tracking sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220018891XU CN202494928U (en) | 2012-01-16 | 2012-01-16 | Sunlight tracking sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494928U true CN202494928U (en) | 2012-10-17 |
Family
ID=47001146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220018891XU Expired - Fee Related CN202494928U (en) | 2012-01-16 | 2012-01-16 | Sunlight tracking sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020787A (en) * | 2014-06-14 | 2014-09-03 | 马根昌 | Optical energy tracking device |
| CN104316084A (en) * | 2014-11-25 | 2015-01-28 | 中国人民解放军军械工程学院 | Detection device for solar tracking errors |
| CN105652336A (en) * | 2016-01-14 | 2016-06-08 | 东南大学 | Pyramid-type light source tracking detector |
-
2012
- 2012-01-16 CN CN201220018891XU patent/CN202494928U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020787A (en) * | 2014-06-14 | 2014-09-03 | 马根昌 | Optical energy tracking device |
| CN104316084A (en) * | 2014-11-25 | 2015-01-28 | 中国人民解放军军械工程学院 | Detection device for solar tracking errors |
| CN104316084B (en) * | 2014-11-25 | 2018-01-09 | 中国人民解放军军械工程学院 | A kind of solar tracking error detecting apparatus |
| CN105652336A (en) * | 2016-01-14 | 2016-06-08 | 东南大学 | Pyramid-type light source tracking detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |