TWI653818B - Solar panel capable of automatic cleaning - Google Patents

Abstract

The invention discloses an automatically cleanable solar panel, comprising: a control unit and a first solar panel body and a second solar panel body respectively electrically connected to the control unit. The first solar panel body further includes a first cleaning unit and a first detecting unit, and the first detecting unit is configured to detect the first output electrical characteristic C ₁₁ and the first solar panel body at the first time point. a second output electrical characteristic C _{12 at} two time points; and a second cleaning unit and a second detecting unit are further disposed on the second solar panel body, and the second detecting unit is configured to detect the second solar panel body in the first time The third output electrical characteristic C _{21 of the} point and the fourth output electrical characteristic C _{22 of the} second time point. The control unit according to lines C _11, C _12, C ₂₁ and C ₂₂ drives the first cleaning unit cleaning the first body or the drive of the second solar panel cleaning unit cleaning the solar panels of the second body.

Description

Automatic cleaning solar panel

The invention relates to a solar panel, in particular to a solar panel which can be automatically cleaned.

Press, the existing solar panels have the function of automatic cleaning and watering. However, these automatic cleaning devices need to use a light sensor to determine whether dirt is attached to the solar panel, so that it is susceptible to weather and darkness in use, and the accuracy of determining whether to clean is reduced.

In view of the above problems in the prior art, it is an object of the present invention to provide a solar panel that can be automatically cleaned without using a conventional light sensor to determine whether there is dirt adhesion, thereby effectively eliminating the cause. The impact of the weather.

For the purpose of the foregoing, the present invention provides a solar panel that can be automatically cleaned, comprising: a control unit; a first solar panel body, which is electrically connected to the control unit, wherein the first solar panel body further comprises: a cleaning unit for cleaning the first solar panel body; and a first detecting unit for detecting the first output electrical characteristic C _{11 of the} first solar panel body at the first time point and the second output of the second time point electrical characteristics C _12; and a second solar panel body, electronically connected to the control unit, wherein the second body further is provided with solar panels: a second cleaning unit, the cleaning system for the second solar panel body; and a second detecting means And a fourth output electrical characteristic C _{21 of the} second solar panel body at a first time point and a fourth output electrical characteristic C _{22 at a} second time point; wherein the control unit is based on the first output electrical characteristic C ₁₁ , a second output wherein C _12, C ₂₁ wherein a third output and a fourth output driving a first C ₂₂ wherein the cleaning of the first cleaning unit or the solar panel body to drive the second cleaning unit cleaning The second solar panel body.

The first output electrical characteristic C ₁₁ , the second output electrical characteristic C ₁₂ , the third output electrical characteristic C ₂₁ and the fourth output electrical characteristic C ₂₂ are current values, voltage values or power.

The first time point described above is different from the second time point.

If the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) = 1, the control unit does not drive the first cleaning unit and the second cleaning unit to perform cleaning.

If the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) ≠ 1, the control unit drives the first cleaning unit to clean the first solar panel body or drive the second cleaning unit to clean the second solar panel body.

If the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) > 1, the control unit drives the first cleaning unit to clean the first solar panel body.

If the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) < 1, the control unit drives the second cleaning unit to clean the second solar panel body.

The first solar panel system described above is adjacent to the second solar panel body.

The direction of the light receiving surface of the first solar panel body is substantially the same as the light receiving surface direction of the second solar panel body.

The first cleaning unit and the second cleaning unit may be, for example, a brushing unit and/or a watering unit.

According to the above, the automatically cleanable solar panel of the present invention can determine whether to clean the first solar panel body and/or the second solar panel body according to the output electrical characteristics of the first solar panel body and the second solar panel body. It is not necessary to use a conventional light sensor to judge whether or not there is dirt adhesion, thereby effectively eliminating the influence caused by the weather.

For a better understanding of the technical features of the present invention and the technical effects that can be achieved, the preferred embodiments and the detailed description are as follows.

To understand the technical features, contents, and advantages of the present invention and the effects thereof, the present invention will be described in conjunction with the drawings and will be described in detail in the preferred embodiments. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope of the present invention should not be construed as limiting the scope of the present invention. In addition, in order to facilitate understanding, the same elements in the following embodiments are denoted by the same reference numerals.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a block diagram of a solar panel capable of being automatically cleaned according to the present invention. 2 is a schematic view of a solar panel capable of being automatically cleaned according to the present invention.

The automatically cleanable solar panel of the present invention comprises at least a control unit 10, a first solar panel body 20 and a second solar panel body 30. The first solar panel body 20 and the second solar panel body 30 are respectively electrically connected to the control unit 10, and the materials of the first solar panel body 20 and the second solar panel body 30 may be, for example, single crystal germanium, polycrystalline germanium or non- The wafer is, however, the invention is not limited thereto.

The first solar panel body 20 can be further provided with a first cleaning unit 22 and a first detecting unit 21. The first cleaning unit 22 is used to clean the first solar panel body 20, and the first cleaning unit 22 may be, for example, a brushing unit (such as a roller brush) and/or a watering unit, but the invention is not limited thereto. The first detecting unit 21 is configured to detect the first output electrical characteristic C _{11 of the} first solar panel body 20 at the first time point and the second output electrical characteristic C _{12 of the} second time point. The first time point is different from the second time point, and the first output electrical characteristic C ₁₁ and the second output electrical characteristic C ₁₂ may be, for example, a current value, a voltage value or a power, but the invention is not limited thereto.

The second solar panel body 30 can be further provided with a second cleaning unit 32 and a second detecting unit 31, wherein the second solar panel body 30 is substantially identical to the first solar panel body 20. The second cleaning unit 32 is for cleaning the second solar panel body 30, and the second cleaning unit 32 may be, for example, a brushing unit (such as a roller brush) and/or a watering unit, but the invention is not limited thereto. The second detecting unit 31 is configured to detect the third output electrical characteristic C _{21 of the} second solar panel body 30 at the first time point and the fourth output electrical characteristic C _{22 of the} second time point. The first time point is different from the second time point, and the third output electrical characteristic C ₂₁ and the fourth output electrical characteristic C ₂₂ may be, for example, a current value, a voltage value or a power, but the invention is not limited thereto.

In addition, the first solar panel body 20 is adjacent to the second solar panel body 30, and the light receiving surface direction of the first solar panel body 20 is substantially the same as the light receiving surface direction of the second solar panel body 30, thereby reducing the number The difference in measured electrical characteristics between a solar panel body 20 and the second solar panel body 30.

Please refer to FIG. 3 and FIG. 4 together with FIG. 1 and FIG. 2 . FIG. 3 is a schematic diagram of the first solar panel body cleaned by the first cleaning unit according to the present invention. 4 is a schematic view showing the cleaning of the second solar panel body by the second cleaning unit of the automatically cleanable solar panel of the present invention.

The control unit 10 can drive the first cleaning unit 22 to clean the first solar panel body 20 according to the first output electrical characteristic C ₁₁ , the second output electrical characteristic C ₁₂ , the third output electrical characteristic C _{21 ,} and the fourth output electrical characteristic C ₂₂ The second cleaning unit 32 is driven to clean the second solar panel body 30. In an embodiment, if the control unit 10 determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) = 1, the control unit 10 does not drive the first cleaning unit 22 and the second cleaning unit 32 to perform cleaning. In another embodiment, if the control unit 10 determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) ≠ 1, the control unit 10 drives the first cleaning unit 22 to clean the first solar panel body 20 or drive The second cleaning unit 32 cleans the second solar panel body 30. In detail, if the control unit 10 determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) > 1, the control unit 10 will drive only the first cleaning unit 22 to clean the first solar panel body 20; The unit 10 judges (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) < 1, and the control unit 10 drives only the second cleaning unit 32 to clean the second solar panel body 30.

Taking the output electrical characteristic as a current value as an example, if the first output current value of the first solar panel body 20 detected by the first detecting unit 21 at the first time point is I ₁₁ , and the second time point is detected The second output current value of the solar panel body 20 is I ₁₂ ; and the third output current value of the second solar panel body 30 detected by the second detecting unit 31 at the first time point is I ₂₁ , and is in the second The fourth output current value of the second solar panel body 30 detected at the time point is I ₂₂ .

In an embodiment, if the control unit 10 determines (I ₁₁ - I ₁₂ ) / (I ₂₁ - I ₂₂ ) = 1 (ie, the first solar panel body 20 and the second solar panel body 30 at the first time point and the first If the current value difference between the two time points is the same, the control unit 10 determines that there is no obvious contamination 40 on the first solar panel body 20 and the second solar panel body 30, so the control unit 10 does not drive the first A cleaning unit 22 and a second cleaning unit 32 perform cleaning.

In another embodiment, if the control unit 10 determines (I ₁₁ - I ₁₂ ) / (I ₂₁ - I ₂₂ ) > 1 (ie, the first solar panel body 20 is between the first time point and the second time point) The current value difference is greater than the current value difference between the first time point and the second time point of the second solar panel body 30), the control unit 10 determines that there may be dirt 40 on the first solar panel body 20 (eg, The humps are attached to cause a large difference in current value between the first time point and the second time point, so the control unit 10 drives only the first cleaning unit 22 to clean the first solar panel body 20 to remove the first solar panel. Dirty 40 on the body 20.

In still another embodiment, if the control unit 10 determines (I ₁₁ - I ₁₂ ) / (I ₂₁ - I ₂₂ ) < 1 (ie, the first solar panel body 20 is between the first time point and the second time point) If the current value difference is smaller than the current value difference between the first time point and the second time point of the second solar panel body 30, the control unit 10 determines that there may be dirt 40 on the second solar panel body 30 (eg, The humps are attached to cause a large difference in current value between the first time point and the second time point, so the control unit 10 drives only the second cleaning unit 32 to clean the second solar panel body 30 to remove the second solar panel. Dirty 40 on body 30.

In summary, the automatically cleanable solar panel of the present invention can determine whether to clean the first solar panel body 20 and/or the second solar panel according to the output electrical characteristics of the first solar panel body 20 and the second solar panel body 30. The body 30 does not need to use a conventional photo sensor to judge whether or not the dirt 40 adheres, thereby effectively eliminating the influence caused by the weather.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

10‧‧‧Control unit

20‧‧‧First solar panel body

21‧‧‧First detection unit

22‧‧‧First cleaning unit

30‧‧‧Second solar panel body

31‧‧‧Second detection unit

32‧‧‧Second cleaning unit

40‧‧‧Dirty

1 is a block diagram of a solar panel that can be automatically cleaned according to the present invention.

2 is a schematic view of a solar panel capable of being automatically cleaned according to the present invention.

3 is a schematic view of the first solar panel body cleaned by the first cleaning unit of the auto-cleanable solar panel of the present invention.

4 is a schematic view showing the cleaning of the second solar panel body by the second cleaning unit of the automatically cleanable solar panel of the present invention.

Claims (8)

A solar panel capable of being automatically cleaned, comprising: a control unit; a first solar panel body electrically connected to the control unit, wherein the first solar panel body further comprises: a first cleaning unit, in the first solar panel cleaning body; and a first detecting unit for detecting based solar panel of the first body in one of a first one of a first output time point C ₁₁ and a second feature point in time two output characteristics C _12; and a second solar panel body, based electrically connected to the control unit, wherein the body further provided with a second solar panel: a second cleaning unit, the cleaning system for the second solar panel And a second detecting unit configured to detect a third output electrical characteristic C _{21 of} the second solar panel body at the first time point and a fourth output electrical characteristic C _{22 of} the second time point; wherein the control unit according to the first output line wherein C _11, wherein the second output C _12, characterized in that the third output and said fourth output C ₂₁ C ₂₂ drives the electrical characteristic of the first cleaning unit cleaning the the first Solar energy driving the second plate body or the second cleaning unit cleaning the solar panel body, wherein the control unit determines if the _{(C 11 -C 12) / (} C 21 -C 22)> 1, the control unit will drive the The first cleaning unit cleans the first solar panel body, wherein if the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) < 1, the control unit drives the second cleaning unit to clean the first Two solar panel bodies. As described in item a patent may range from automatic cleaning of the solar panel, wherein the first output characteristic C _11, wherein the second output C _12, characterized in that the C ₂₁ third output and the fourth output Characteristic C ₂₂ is a current value, a voltage value or a power. The self-cleaning solar panel of claim 1, wherein the first time point is different from the second time point. The solar panel capable of being automatically cleaned as described in claim 1, wherein if the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) = 1, the control unit does not drive the first The cleaning unit and the second cleaning unit perform cleaning. The solar panel capable of being automatically cleaned as described in claim 1, wherein the control unit drives the first if the control unit determines (C ₁₁ - C ₁₂ ) / (C ₂₁ - C ₂₂ ) ≠ 1 The cleaning unit cleans the first solar panel body or drives the second cleaning unit to clean the second solar panel body. The self-cleaning solar panel of claim 1, wherein the first solar panel system is adjacent to the second solar panel body. The self-cleaning solar panel of claim 6, wherein the direction of the light receiving surface of the first solar panel body is substantially the same as the direction of the light receiving surface of the second solar panel body. The self-cleaning solar panel of claim 1, wherein the first cleaning unit and the second cleaning unit are a scrubbing unit and/or a sprinkling unit.